KR100256404B1 - Heat exchanger of air-con - Google Patents

Heat exchanger of air-con Download PDF

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Publication number
KR100256404B1
KR100256404B1 KR1019970051873A KR19970051873A KR100256404B1 KR 100256404 B1 KR100256404 B1 KR 100256404B1 KR 1019970051873 A KR1019970051873 A KR 1019970051873A KR 19970051873 A KR19970051873 A KR 19970051873A KR 100256404 B1 KR100256404 B1 KR 100256404B1
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South Korea
Prior art keywords
refrigerant
heat exchanger
air
pipes
flow
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KR1019970051873A
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Korean (ko)
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KR19990031233A (en
Inventor
전제훈
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윤종용
삼성전자주식회사
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Priority to KR1019970051873A priority Critical patent/KR100256404B1/en
Publication of KR19990031233A publication Critical patent/KR19990031233A/en
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Publication of KR100256404B1 publication Critical patent/KR100256404B1/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
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
    • 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
    • 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

Abstract

PURPOSE: An air conditioner heat exchanger is provided, in which a plurality of refrigerants are eliminated so as to prevent refrigerant heat from being transferred to a lower flat fin of the heat exchanger, to thereby improve heat exchange performance, while reducing power consumption by allowing air to smoothly pass through the refrigerant path. CONSTITUTION: A heat exchanger(200) comprises a plurality of flat fins(210) arranged at a constant spacing so as to allow the air to pass through flat fins; a plurality of refrigerant pipes(220) arranged at the side surface of the flat fin in such a manner that refrigerant pipes are inserted in perpendicular direction to the side surface of the flat fin so as to allow the refrigerant to flow through the refrigerant pipes; and a plurality of return pipes(240) connected at both ends of the refrigerant pipe in such a manner that refrigerant pipes form first to fourth refrigerant path groups(230,231,232,233) and has refrigerant inlet and outlet sides which are independent to each other. Two or more refrigerant pipes are eliminated so as to prevent dew formation, allow the air to smoothly pass and guide the flow of condensate water flowing in a gravity direction, thereby improving heat exchange performance.

Description

공기조화기의 열교환기Heat exchanger of air conditioner

본 발명은 공기조화기의 열교환기에 관한 것으로서, 더욱 상세하게는 열교환기(예컨대, 증발기)와 기류가 접촉될 때 평판핀의 표면에 생성된 응축수가 정제되지 않고 용이하게 흘러내리도록 냉매패스(PASS)의 배열상태를 개선한 공기조화기의 열교환기에 관한 것이다.The present invention relates to a heat exchanger of an air conditioner, and more particularly, a refrigerant path (PASS) so that condensed water generated on the surface of a flat plate fin can be easily flowed down without being purified when the heat exchanger (for example, an evaporator) and air flow contact. The heat exchanger of the air conditioner with improved arrangement of the).

종래에 따른 공기조화기의 실내기는 제1도에 도시한 바와 같이 외관을 형성하도록 본체(10)의 전면에는 전면판넬(20)이 설치되어 있고, 기류가 실내기내에 흡입되도록 상기 전면판넬(20)의 하측에는 흡입구(30)가 형성되어 있으며, 상기 전면판넬(20)의 상측에는 토출구(40)가 형성되어 있다.The indoor unit of the conventional air conditioner is provided with a front panel 20 on the front surface of the main body 10 to form an exterior as shown in FIG. 1, and the front panel 20 so that air flow is sucked into the indoor unit. A suction port 30 is formed at the lower side of the discharge port, and a discharge port 40 is formed at the upper side of the front panel 20.

상기 흡입구(30)에는 그 흡입구(30)를 외부로부터 보호하면서 흡입구(30)와 통로가 연결되도록 다수개의 관통구멍(61)을 가진 흡입그릴체(60)가 설치되어 있고, 상기 토출구(40)에는 그 토출구(40)를 통해서 실내로 토출되는 기류의 흐름을 상하 및 좌우방향으로 제어하도록 풍향흐름조절수단(70)이 설치되어 있으며, 상기 흡입그릴체(60)의 내측면에는 상기 흡입구(30)로부터 실내기의 내부로 유입되는 기류중에 부유하는 각종 이물질을 필터링하도록 에어필터(90)가 착탈가능케 설치되어 있다.The suction port 30 is provided with a suction grill body 60 having a plurality of through holes 61 so that the suction port 30 and the passage are connected to the suction port 30 from the outside, and the discharge port 40 The wind direction flow control means 70 is installed to control the flow of air flow discharged into the room through the discharge port 40 in the vertical and horizontal directions, and the suction port 30 is provided on the inner surface of the suction grill body 60. Air filter 90 is detachably installed so as to filter various foreign matters suspended in the airflow flowing into the indoor unit.

상기 흡입구(30)측 후방에는 그 흡입구(30)를 통하여 실내기의 내부로 흡입된 기류를 차가운 공기로 열교환시키도록 열교환기(110)가 일정각도로 경사지게 설치되어 있고, 상기 열교환기(110)의 상측에는 전원을 인가받아 구동되면서 상기 흡입구(30)를 통해 외부의 기류를 본체(10)내에 강제 흡입함과 동시에 그 기류를 토출구(40)를 통해 외부로 토출시키도록 송풍수단(120)이 설치되어 있다.The heat exchanger 110 is inclined at a predetermined angle to the rear side of the intake port 30 so as to heat-exchange the air flow sucked into the interior of the indoor unit through the intake port 30 with cold air. Blowing means 120 is installed on the upper side while being driven by the power inlet to force the suction of the external air in the main body 10 through the suction port 30 and at the same time to discharge the air flow to the outside through the discharge port 40 It is.

이때, 상기 열교환기(110)는 제2도에 도시한 바와 같이 기류가 사이 사이로 통과하면서 전열되도록 일장간격을 두고 평행하게 수직 배열되도록 다수개의 평판핀(111)이 설치되어 있고, 상기 평판핀(111)의 측면에는 냉매가 내부로 흐르게 하면서 그 냉매온도가 평판핀(111)에 전도되도록 다수개의 냉매관(112)이 평판핀(111)에 대하여 직각되는 수평방향으로 삽입되어 있으며, 상기 다수개의 냉매관(112)의 양단에는 다수개의 냉매관(112)이 상하방향으로 분할된 제1 내지 제4냉매패스군(113)(114)(115)(116)을 형성하면서 서로 독립된 냉매유입측 및 냉매유출측을 가지도록 다수개의 리턴밴드관(117)이 연결 설치되어 있다.In this case, as illustrated in FIG. 2, the heat exchanger 110 includes a plurality of flat fins 111 arranged in parallel to be vertically arranged at a single interval so that the airflow passes therebetween, and the flat fins ( A plurality of refrigerant pipes 112 are inserted in a horizontal direction at right angles to the plate fins 111 so that the refrigerant flows into the plate fins 111 while allowing the refrigerant to flow therein. At both ends of the refrigerant pipe 112, a plurality of refrigerant pipes 112 are formed in the first to fourth refrigerant path groups 113, 114, 115, and 116, which are divided in the vertical direction, and are independent of each other. A plurality of return band pipes 117 are connected to each other so as to have a refrigerant outlet side.

그리고, 상기 제1 내지 제4냉매패스군(113)(114)(115)(116)의 기류방향측에는 각각 냉매패스유입부(113a)(114a)(115a)(116a)가 설치되어 있고, 그들 기류반대방향측에는 냉매패스유출부(113b)(114b)(115b)(116b)가 설치되어 있다.Refrigerant path inlets 113a, 114a, 115a, and 116a are provided on the airflow direction side of the first to fourth refrigerant path groups 113, 114, 115, and 116, respectively. Coolant path outflow parts 113b, 114b, 115b and 116b are provided on the opposite side of the airflow.

여기서, 상기 냉매패스유입부(113a)(114a)(115a)(116a)에는 도시되지 않은 실외기의 열교환기(응축기)에서 약 35-40℃ 고온 고압으로 보내진 액체냉매를 받아 통과시킬 때 약 7-8℃ 저온 저압의 액체냉매로 감압(팽창)시켜 상기 열교환기(110)에 공급하도록 제1 내지 제4모세관(13)(131)(132)(133)이 각각 연결 설치되어 있다.Here, the refrigerant path inlets 113a, 114a, 115a and 116a receive and pass the liquid refrigerant sent to a high temperature and high pressure of about 35-40 ° C. in a heat exchanger (condenser) of an outdoor unit (not shown). The first to fourth capillary tubes 13, 131, 132, and 133 are connected to each other so as to decompress (expand) the liquid refrigerant at 8 ° C. and low pressure to supply the heat exchanger 110.

그러나, 이와 같이 구성된 종래에 의한 공기조화기의 열교환기(110)에 의하면, 제4냉매패스군(116)의 평판핀(111)에는 기류의 유동진행방향측이나 또는 기류의 유동진행반대방향측에 빈공간이 없이 촘촘히 다수개의 냉매관(112)이 상하 일정간격을 두고 직각되게 설치되어 있으나, 이러한 냉매패스는 송풍수단(120)이 가동될 때 제1 내지 제4냉매패스군(113)(114)(115)(116)의 위치마다 통과되는 기류분포가 다르게 나타나는 통상적인 신뢰성 시험결과, 즉 A 및 B구간에 각각 40% 및 25%의 기류가 통과되고, C 및 D구간에 각각 20% 및 5%의 기류가 통과되기 때문에 열교환기(110)의 냉매온도와 통과기류의 온도차에 의해 평판핀(111)의 표면에 생성되는 응축수가 약한 풍량이 통과되는 제4냉매패스군(116)와 열교환기(110)의 완만한 경사각도에 의해서 그 즉시 흘려내리지 못하고 소정위치에 정체되어 왔었다.However, according to the heat exchanger 110 of the conventional air conditioner configured as described above, the flat fin 111 of the fourth refrigerant path group 116 has the flow direction of air flow or the direction of flow opposite to the flow of air. Although a plurality of refrigerant pipes 112 are densely installed at right angles at regular intervals up and down without empty spaces, these refrigerant paths are the first to fourth refrigerant path groups 113 when the blowing means 120 is operated. Typical reliability test results show different air flow distributions at different positions of 114, 115 and 116, i.e. 40% and 25% of airflow pass through sections A and B, respectively, and 20% through sections C and D, respectively. And a fourth refrigerant path group 116 through which a small amount of condensed water generated on the surface of the flat fin 111 is passed by the temperature difference between the refrigerant temperature of the heat exchanger 110 and the passage of the airflow because the 5% air flow passes therethrough. Due to the gentle inclination angle of the heat exchanger 110 It has been stagnant at a predetermined position.

즉, 냉매온도와 기류온도와의 온도차에 의해 제1 내지 제4냉매패스군(113)(114)(115)(116)의 평판핀(111)에 생성된 물방울(응축수)은 일정부피로 형성되면, 중력과 열교환기(110)의 경사각도에 의해 평판핀(111)을 타고 흘러내리다가 다른 물방울과 합쳐져 가속되면서 열교환기(110)의 하부에 설치된 응축수받이(도시안됨)로 낙하되지만, 특히 제4냉매패스군(116)에 생성되는 물방울은 다수개의 평판핀(111)의 표면장력과 제4냉매패스군(116)을 통과하는 풍량(약한 풍력)에 의해 하부로 흐르지 못하고 장시간 소정위치에 정체되면서 평판핀(111)의 사이 사이 간격을 막음에 따라 통과기류의 흐름을 저하시켜 열교환 성능을 저하시키고, 또 통과기류가 늦어 송풍수단(120)에 무리한 저항을 줌에 따라 소비전력소모량을 증가시킨다는 문제점이 있었다.That is, water droplets (condensed water) generated in the flat fins 111 of the first to fourth refrigerant path groups 113, 114, 115, and 116 due to the temperature difference between the refrigerant temperature and the airflow temperature are formed in a predetermined volume. If, by gravity and the angle of inclination of the heat exchanger 110 flows down the plate fin 111 and combined with other water droplets to accelerate to fall to the condensate receiver (not shown) installed in the lower portion of the heat exchanger 110, The water droplets generated in the fourth refrigerant path group 116 do not flow downward due to the surface tension of the plurality of plate fins 111 and the amount of air passing through the fourth refrigerant path group 116 (weak wind power) at a predetermined position for a long time. While stagnant, the gap between the plate fins 111 is prevented, thereby decreasing the flow of airflow, thereby reducing heat exchange performance, and increasing the power consumption as the airflow is too slow to impart resistance to the blower 120. There was a problem.

따라서, 본 발명은 상기 문제점을 해결하기 위하여 이루어진 것으로, 본 발명의 목적은 열교환기의 하단 소정위치에 냉매열이 전도되지 않게 하여, 물방울의 생성을 억제함과 동시에 중력방향으로 흘러내리는 응축수의 흐름을 안내하여 열교환 성능을 높이고, 기류의 통과를 원활하게 함에 따라 원활한 통과기류에 의해 송풍수단에 무리한 저항이 발생되지 않게 하여 소비전력소모량을 감소시키도록 한 공기조화기의 열교환기를 제공하는데 있다.Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to prevent the refrigerant heat from conducting to a predetermined position of the lower end of the heat exchanger, thereby suppressing the generation of water droplets and at the same time flowing in the direction of gravity flow It is to provide a heat exchanger of the air conditioner to increase the heat exchange performance by guiding, and to reduce the power consumption by preventing excessive resistance to the blowing means by the smooth passage of the air flow as the passage of the air flow smoothly.

상기 목적을 달성하기 위하여 이루어진 본 발명에 의한 공기조화기의 열교환기는, 기류가 사이 사이로 통과되도록 일정간격을 두고 평행하게 배열된 다수개의 평판핀과, 냉매가 내부로 흐르면서 그 냉매열이 상기 다수개의 평판핀에 전조되도록 다수개의 평판핀에 직각되게 삽입된 다수개의 냉매관을 구비한 공기조화기의 열교환기에 있어서, 상기 다수개의 평판핀의 하부 소정위치에는 냉매열이 전도되지 않게하여 물방울의 생성을 억제함과 동시에 기류가 원활하게 통과되도록 적어도 2개 이상의 냉매관이 설치되지 않게 한 것을 특징으로 한다.The heat exchanger of the air conditioner according to the present invention made to achieve the above object, a plurality of flat fins arranged in parallel with a predetermined interval so that the air flow is passed therebetween, and the refrigerant heat flows through the plurality of flat fins inside In a heat exchanger of an air conditioner having a plurality of refrigerant pipes inserted perpendicularly to a plurality of flat plate fins to be rolled onto the flat plate fins, the heat generation of the droplets is prevented from being generated by the heat of the refrigerant at predetermined positions of the plurality of flat plate fins. It is characterized in that at least two or more refrigerant pipes are not installed so as to suppress and at the same time flow smoothly.

제1도는 종래에 따른 실내기를 도시한 개략적인 단면도.1 is a schematic cross-sectional view showing an indoor unit according to the prior art.

제2도는 종래에 따른 열교환기를 도시한 측면도.Figure 2 is a side view showing a heat exchanger according to the prior art.

제3도는 본 발명에 따른 열교환기를 도시한 측면도이다.3 is a side view showing a heat exchanger according to the present invention.

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

200 : 열교환기 210 : 평판핀200: heat exchanger 210: plate fin

220 : 냉매관 P : 소정위치220: refrigerant pipe P: predetermined position

이하, 본 발명의 일실시예에 관하여 첨부도면을 참조하면서 상세히 설명한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

참고로, 도면에서 종래의 구성과 동일한 구성에 대해서는동일명칭 및 동일 부호를 부여하고, 그에 대한 상세한 설명은 생략한다.For reference, the same components and the same reference numerals are assigned to the same components as the conventional components in the drawings, and detailed description thereof will be omitted.

본 발명에 의한 열교환기(200)는 제3도에 도시한 바와 같이 기류가 사이 사이로 통과하면서 전열되도록 일정간격을 두고 평행하게 수직 배열되도록 다수개의 평판핀(210)이 설치되어 있고, 상기 평판핀(210)의 측면에는 냉매가 내부로 흐르게 하면서 그 냉매온도가 평판핀(210)에 전도되도록 다수개의 냉매관(220)이 평판핀(210)에 대하여 직각되는 수평방향으로 삽입되어 있으며, 상기 다수개의 냉매관(220)의 양단에는 다수개의 냉매관(220)이 상하방향으로 분할된 제1 내지 제4냉매패스군(230)(231)(232)(233)을 형성하면서 서로 독립된 냉매유입측 및 냉매유출측을 가지도록 다수개의 리턴밴드관(240)이 연결 설치되어 있다.In the heat exchanger 200 according to the present invention, as shown in FIG. 3, a plurality of flat fins 210 are arranged to be arranged in parallel and vertically at a predetermined interval so that the air flow passes through them. A plurality of refrigerant pipes 220 are inserted in a horizontal direction perpendicular to the flat plate fin 210 so that the coolant flows inside the side plate 210 so that the coolant temperature is conducted to the flat plate fin 210. Refrigerant inlet sides independent of each other while forming first to fourth refrigerant path groups 230, 231, 232 and 233 in which a plurality of refrigerant pipes 220 are divided up and down at both ends of the two refrigerant pipes 220. And a plurality of return band pipe 240 is installed to have a refrigerant flow side.

그리고, 상기 제1 내지 제4냉매패스군(230)(231)(232)(233)의 기류방 향측에는 각각 냉매패스유입부(230a)(231a)(232a)(233a)가 설치되어 있고, 그들 기류반대 방향측에는 냉매패스유출부(230b)(231b)(232b)(233b)가 설치되어 있다.In addition, refrigerant path inlets 230a, 231a, 232a, and 233a are provided at the airflow directions of the first to fourth refrigerant path groups 230, 231, 232, and 233, respectively. Refrigerant path outflow parts 230b, 231b, 232b, and 233b are provided on the side opposite to the airflow.

이때, 상기 냉매패스유입부(230a)(231a)(232a)는 냉매가 상기 다수개의 냉매관(220)에 중력반대방향으로 유입되도록 상기 제1 내지 제3냉매패스군(230)(231)(232)의 최저 하단에 각각 설치되어 있고, 상기 냉매패스유출부(230b)(231b)(232b)는 상기 다수개의 냉매관(220)을 따라 흐르는 냉매가 중력반대방향으로 유출되도록 상기 제1 내지 제3냉매패스군(230)(231)(232)의 최고 상단에 각각 설치되어 있다.At this time, the refrigerant path inlet 230a, 231a, 232a is the first to third refrigerant path group 230, 231 (so that the refrigerant flows into the plurality of refrigerant pipes 220 in the opposite direction of gravity) The coolant path outlets 230b, 231b, and 232b are respectively installed at the lowermost ends of the second and second ports 232b, 231b, and 232b such that the refrigerant flowing along the plurality of refrigerant pipes 220 flows out in the opposite direction of gravity. The three refrigerant path groups 230, 231 and 232 are respectively provided on the uppermost top.

상기 냉매패스유입부(233a)는 냉매가 상기 다수개의 냉매관(220)에 중력방향으로 유입되도록 상기 제4냉매패스군(233)의 최고 상단에 설치되어 있고, 상기 냉매패스유출부(233b)는 상기 다수개의 냉매관(220)을 따라 흐르는 냉매가 중력반대방향으로 유출되도록 상기 제4냉매패스군(230)의 최고 상단에 설치되어 있다.The coolant path inlet 233a is installed at the top of the fourth coolant path group 233 so that coolant flows into the plurality of coolant pipes 220 in a gravity direction, and the coolant path inlet 233b. Is installed on the top of the fourth refrigerant path group 230 so that the refrigerant flowing along the plurality of refrigerant pipes 220 flows in the opposite direction of gravity.

상기 냉매패스유입부(230a)(231a)(232a)(233a)에는 도시되지 않은 실외기의 열교환기(예컨대, 응축기)에서 약 35-40℃ 고온 고압으로 보내진 액체냉매를 받아통과시킬 때 약 7-8℃ 저온 저압의 액체냉매로 감압(팽창)시켜 상기 열교환기(200)의 냉매관(220)에 공급하도록 제1 내지 제4모세관(250)(251)(252)(253)이 각각 연결 설치되어 있다.The refrigerant path inlets 230a, 231a, 232a, and 233a receive and pass the liquid refrigerant sent to a high temperature and high pressure of about 35-40 ° C. in a heat exchanger (eg, a condenser) of an outdoor unit (not shown). The first to fourth capillary tubes 250, 251, 252 and 253 are connected to each other so as to decompress (expand) the liquid refrigerant at a low temperature of 8 ° C. and supply it to the refrigerant pipe 220 of the heat exchanger 200. It is.

이때, 상기 제4냉매패스군(233)의 다수개의 평판핀(210)에 대하여 기류의 유동진행방향측 소정위치(P)에는 물방울이 생성을 억제하여 줌에 따라 기류의 통과를 원활하게 함과 동시에 중력방향으로 흘러내리는 응축수의 흐름을 안내하여 열교환 성능을 높이도록 적어도 2개 이상의 냉매관(220)이 삭제되어 있다.At this time, water droplets are suppressed to be generated at a predetermined position P of the flow direction in the air flow direction with respect to the plurality of plate fins 210 of the fourth refrigerant path group 233 to smoothly pass the air stream as the zoom is suppressed. At least two or more refrigerant pipes 220 are deleted to guide the flow of condensate flowing in the direction of gravity to increase heat exchange performance.

즉, 상기 소정위치(P)는 제3냉매패스군(232)의 냉매패스유입부(232a)와 제4냉매패스군(233)의 냉매패스유입부(233a)와의 사이측에 형성되어 있다.That is, the predetermined position P is formed between the refrigerant path inlet 232a of the third refrigerant path group 232 and the refrigerant path inlet 233a of the fourth refrigerant path group 233.

다음에는, 이와 같이 구성된 본 발명의 작용 및 효과를 설명한다.Next, the operation and effect of the present invention configured as described above will be described.

제3도에 도시한 바와 같이 표시된 화살표(S) 방향으로 기류가 열교환기(200)를 향해 유동되면, 이 기류는 제1도를 기준으로 하여 열교환기(200)를 통과할 때 기류분포 상태(신뢰성 시험시)가 통상적으로 다르도록 냉매패스를 설치한 제1 내지 제4냉매패스군(230)(231)(232)(233)를 향해 40%, 25%, 20%, 5%정도 각각 분포되어 통과되면서 냉방에 필요한 온도로 열교환되어 진다.When the air flow flows toward the heat exchanger 200 in the direction indicated by the arrow S as shown in FIG. 3, the air flow is passed through the heat exchanger 200 based on FIG. 40%, 25%, 20%, 5% respectively distributed toward the first to fourth refrigerant path groups 230, 231, 232, and 233 having refrigerant paths installed so that the reliability test is different). As it passes through, it is heat exchanged to the temperature required for cooling.

이때, 제4냉매패스군(233)의 평판핀(210)에는 기류의 유동진행방향측 전방면소정위치(P)에 적어도 2개 이상의 냉매관이 설치되지 않는 냉매패스로 이루어져 있기 때문에 그 소정위치(P)에는 냉매열이 전달되지 않음은 물론 물방울이 생기지 않게 된다.At this time, since the plate fin 210 of the fourth refrigerant path group 233 is composed of a refrigerant path in which at least two refrigerant pipes are not provided at the front surface predetermined position P of the flow direction in the air flow direction, the predetermined position thereof. Coolant heat is not transferred to (P), and water droplets are not generated.

따라서, 상기 열교환기(200)를 일정각도로 경사지게 설치한 상태에서 기류를 통과시키면, 열교환기(200)의 제1 내지 제4냉매패스군(230)(231)(232)(233)에서 발생되는 냉매열과 통과기류의 온도차에 의해 다수개의 평판핀(210)의 표면에 물방울이 생성되고, 이 물방울은 일정부피로 형성될 때 중력과 열교환기(200)의 경사각도에 의해 평판핀(210)을 타고 흘러내린다.Therefore, when the airflow is passed in a state in which the heat exchanger 200 is inclined at a predetermined angle, the heat exchanger 200 is generated in the first to fourth refrigerant path groups 230, 231, 232, and 233 of the heat exchanger 200. Water droplets are generated on the surfaces of the plurality of flat fins 210 due to the difference between the heat of the refrigerant and the temperature of the passing airflow, and the flat fins 210 are formed by the inclination angle of gravity and the heat exchanger 200 when the droplets are formed in a predetermined volume. Ride down the river.

이때, 제1 내지 제3냉매패스군(230)(231)(232)에서 생성된 물방울은 다수개의 평판핀(210)을 타고 흐르다가 서로 합쳐져 가속됨과 동시에 열교환기(200)의 경사각도에 의해 대부분 낙하되고, 이 물방울중 일부는 제4냉매패스군(233)측 다수개의 평판핀(210)을 타고 흐를 때 제3냉매패스군(233)측 다수개의 평판핀(210)에 생성된 물방울과 합쳐짐과 동시에 상기 소정위치(P)가 안내되어 그 즉시 낙하됨으로써 평판핀(210)의 사이 사이에 물방울이 정체되지 않게 되고, 이로 인하여 열교환성능이 향상되게 된다.At this time, the water droplets generated in the first to third refrigerant path groups 230, 231 and 232 flow through the plurality of flat plate fins 210, are accelerated by being combined with each other and at the same time by the inclination angle of the heat exchanger 200. Most of the water drops and some of the water droplets and the water droplets generated in the plurality of plate fins 210 on the third refrigerant pass group 233 side flows through the plurality of plate fins 210 on the fourth refrigerant pass group 233 side; At the same time, the predetermined position (P) is guided and dropped immediately so that water droplets do not stagnate between the flat plate fins 210, thereby improving heat exchange performance.

또, 상기 제4냉매패스군(233)을 통과하는 기류는 상기 소정위치(P)의 공간확보에 의해 흐름이 끊기지 않고 원활히 통과됨으로써 송풍수단(120)에 무리한 저항을 주지 않게 되고, 이로 인하여 소비전력소모량을 감소시키게 된다.In addition, the air flow passing through the fourth refrigerant path group 233 is smoothly passed through the flow without interruption by securing the space at the predetermined position P, thereby not giving an excessive resistance to the blowing means 120, thereby consuming This reduces power consumption.

이상에서 설명한 바와 같이 본 발명에 의한 공기조화기의 열교환기에 의하면, 열교환기의 하부측 평판핀의 소정위치에 냉매열이 전도되지 않도록 복수개의 냉매관을 삭제한 구조로 되어 있기 때문에 물방울의 생성을 억제하여 줌에 따라 중력방향으로 흘러내리는 응축수의 흐름을 안내하여 열교환 성능을 높이고, 기류의 통과를 원활하게 함에 따라 송풍수단에 무리한 저항이 발생되지 않게 하여 소비전력소모량을 감소시키는 효과가 있다.As described above, the heat exchanger of the air conditioner according to the present invention has a structure in which a plurality of refrigerant tubes are removed so that the refrigerant heat is not conducted to a predetermined position of the lower plate fin of the heat exchanger. By suppressing and guiding the flow of condensate flowing in the direction of gravity as it is zoomed in, heat exchange performance is improved, and smooth passage of airflow prevents excessive resistance from blowing means, thereby reducing power consumption.

Claims (1)

기류가 사이 사이로 통과되도록 일정간격을 두고 평행하게 배열된 다수개의 평판핀과, 냉매가 내부로 흐르면서 그 냉매열이 상기 다수개의 평판핀에 전도되도록 다수개의 평판핀에 직각되게 삽입된 다수개의 냉매관을 구비한 공기조화기의 열교환기에 있어서, 상기 다수개의 평판핀의 하부 소정위치에 대하여 기류의 유동진행방향측 전방면에는 냉매열이 전도되지 않게하여 물방울의 생성을 억제함과 동시에 기류가 원활하게 통과되도록 냉매관이 일부 설치되지 않게 한 것을 특징으로 하는 공기조화기의 열교환기.A plurality of flat plate fins arranged in parallel at a predetermined interval so that the airflow passes therebetween, and a plurality of coolant pipes inserted perpendicularly to the plurality of flat plate fins such that the coolant heat is conducted to the plurality of flat plate fins as the coolant flows inside In the heat exchanger of the air conditioner provided with, the refrigerant heat is not conducted to the front surface of the flow direction of the air flow relative to the predetermined position of the plurality of flat plate fins to suppress the generation of water droplets and at the same time smoothly The heat exchanger of the air conditioner, characterized in that the refrigerant pipe is not installed partly so as to pass through.
KR1019970051873A 1997-10-09 1997-10-09 Heat exchanger of air-con KR100256404B1 (en)

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