KR20040051033A - Apparatus for preventing corrosion of condenser in air conditioner - Google Patents

Apparatus for preventing corrosion of condenser in air conditioner Download PDF

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Publication number
KR20040051033A
KR20040051033A KR1020020078857A KR20020078857A KR20040051033A KR 20040051033 A KR20040051033 A KR 20040051033A KR 1020020078857 A KR1020020078857 A KR 1020020078857A KR 20020078857 A KR20020078857 A KR 20020078857A KR 20040051033 A KR20040051033 A KR 20040051033A
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KR
South Korea
Prior art keywords
heat exchanger
air conditioner
corrosion
refrigerant pipe
heat
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KR1020020078857A
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Korean (ko)
Inventor
정영만
문정욱
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엘지전자 주식회사
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Priority to KR1020020078857A priority Critical patent/KR20040051033A/en
Publication of KR20040051033A publication Critical patent/KR20040051033A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/089—Coatings, claddings or bonding layers made from metals or metal alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments

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

Abstract

PURPOSE: An apparatus for preventing corrosion of a heat exchanger in an air conditioner is provided to form a coating layer on an outer peripheral surface of a refrigerant pipe with the same material as a material of heat dissipating fins, thereby interrupting potential difference corrosion generated by electric contact between parts. CONSTITUTION: Fixing stands are installed on both sides of a heat exchanger. A plurality of heat dissipating fins(22) are installed inside the fixing stands at regular gaps. A refrigerant pipe(23) is inserted into through holes formed at the heat dissipating fins in zigzags to circulate a refrigerant. A coating layer(100) formed of the same material as a material of the heat dissipating fins is formed on an outer peripheral surface of the refrigerant pipe to prevent a potential difference from generating between the refrigerant pipe and the heat dissipating fins. The heat dissipating fins are formed of an aluminum material, and the coating layer is formed of the aluminum material.

Description

에어컨 열교환기의 부식방지장치{APPARATUS FOR PREVENTING CORROSION OF CONDENSER IN AIR CONDITIONER}Corrosion prevention device of air conditioner heat exchanger {APPARATUS FOR PREVENTING CORROSION OF CONDENSER IN AIR CONDITIONER}

본 발명은 에어컨 열교환기의 부식방지장치에 관한 것으로, 특히 열교환기의 부품들이 접촉되어 전위차에 의한 부식이 발생되는 것을 방지하여 열교환기의 사용수명을 향상시키도록 하는데 적합한 에어컨 응축기의 부식방지장치에 관한 것이다.The present invention relates to a corrosion preventing apparatus of an air conditioner heat exchanger, and more particularly, to a corrosion preventing apparatus of an air conditioner condenser suitable for improving the service life of the heat exchanger by preventing the contact of the components of the heat exchanger by the corrosion of the potential difference. It is about.

일반적으로 창문형 에어컨은 건물의 벽체에 설치되고, 건물의 실내에 위치하는 실내측 열교환기와 실외에 위치하는 실외측 열교환기가 일체로 설치되어 있는 것이 실외측 열교환기와 실내측 열교환기가 별도로 분리되어 있는 분리형 룸 에어컨 및 대형인 패키지형 에어컨과 다른 점이다.In general, a window type air conditioner is installed on a wall of a building, and an indoor heat exchanger located inside a building and an outdoor heat exchanger located outdoors are integrally installed. This is different from air conditioners and large packaged air conditioners.

이러한 창문형 에어컨이 도 1과 도 2에 도시되어 있는 바, 이를 간단히 설명하면 다음과 같다.Such a window type air conditioner is shown in FIGS. 1 and 2, which will be described briefly as follows.

도 1에 도시된 바와 같이, 창문형 에어컨은 박스체인 케이스(1)의 전면 일측에 실내공기를 흡입하기 위한 흡입구(2)가 넓게 형성되어 있고, 타측에는 열교환된 냉기를 실내로 토출하기 위한 토출구(3)가 형성되어 있으며, 상기 토출구(3)의 하측에는 에어컨의 동작을 제어하기 위한 다수의 조정노브(4)들이 결합되어 있다.As shown in FIG. 1, the window type air conditioner has a wide inlet port 2 for suctioning indoor air on one side of the front side of the box chain case 1, and a discharge port for discharging the heat exchanged cold air to the room side. 3) is formed, a plurality of adjustment knobs (4) for controlling the operation of the air conditioner is coupled to the lower side of the discharge port (3).

도 2에 도시된 바와 같이, 상기 케이스(1)의 내부에 설치된 베이스 판(11)의 상측에는 일정 간격으로 두고 실내측 차단벽체(12)와 실외측 차단벽체(13)가 설치되어 있고, 그 실내측 차단벽체(12)의 후위에는 실내측과 실외측을 구획함과 아울러 지지체가 되는 베리어(14)가 조립되어 있다.As shown in FIG. 2, the inner side blocking wall body 12 and the outer side blocking wall body 13 are provided on the upper side of the base plate 11 installed in the case 1 at regular intervals. In the rear of the indoor side blocking wall 12, a barrier 14 which serves as a support and partitions the indoor side and the outdoor side is assembled.

그리고, 상기 베리어(14)의 일측에 형성된 모터 마운트부(15)에는 구동모터(16)가 설치되어 있고, 그 구동 모터(16)의 실내측 단부에는 공기를 순환시키는 송풍팬(17)이 설치되어 있으며, 실외측 단부에는 냉각팬(18)이 결합되어 있다.In addition, a driving motor 16 is installed at the motor mount unit 15 formed at one side of the barrier 14, and a blowing fan 17 for circulating air is installed at an indoor end of the driving motor 16. The cooling fan 18 is coupled to the outdoor end.

또한, 상기 송풍팬(17)의 전방에는 흡입구(2)를 통하여 흡입된 실내공기를 열교환하기 위한 실내측 열교환기(19)가 설치되어 있고, 상기 냉각팬(18)의 전방에는 실외측 열교환기(20)가 설치되어 있다.In addition, an indoor side heat exchanger 19 is installed in front of the blower fan 17 to heat exchange the indoor air sucked through the inlet 2, and an outdoor side heat exchanger is provided in front of the cooling fan 18. 20 is provided.

도 3은 상기 실외측 열교환기(20)를 보인 것으로 도시된 바와 같이, 일정간격을 두고 양측에 고정대(21)(21')가 설치되어 있고, 그 고정대(21)(21')의 내측에 여러개의 방열핀(22)들이 설치되어 있으며, 그 방열핀(22)들에 지그재그 형상으로 냉매관(23)이 결합되어 있다.3 is a view showing the outdoor heat exchanger 20, the fixing base 21, 21 'is provided on both sides with a predetermined interval, the inner side of the fixing 21 (21') A plurality of heat dissipation fins 22 are installed, and the coolant tube 23 is coupled to the heat dissipation fins 22 in a zigzag shape.

도면중 미설명 부호 21은 냉매가스를 고온 고압으로 압축시키기 위한 압축기이다.In the figure, reference numeral 21 is a compressor for compressing the refrigerant gas at a high temperature and high pressure.

따라서, 상기와 같이 구성되어 있는 종래의 창문형 에어컨을 구동시키면 송풍팬(17)에 의하여 흡입구(2)로 흡입된 더운 공기가 실내측 열교환기(19)를 지나면서 차가운 공기로 열교환된 후 토출구(3)를 통해 실내로 토출되어 진다.Therefore, when driving the conventional window type air conditioner configured as described above, the hot air sucked into the inlet 2 by the blower fan 17 is heat-exchanged with cold air while passing through the indoor side heat exchanger 19, and then the discharge port ( It is discharged to the room through 3).

또한, 실외측에는 위치하는 실외측 열교환기(20)는 냉동싸이클에 의하여 열이 발생되는데, 이와 같이 발생되는 열은 냉각팬(18)에 의하여 송풍되는 바람에 의하여 발생되는 열이 외부로 방출되게 된다.In addition, the outdoor heat exchanger 20 located on the outdoor side generates heat by the refrigeration cycle, and the heat generated as described above is released to the outside by the wind blown by the cooling fan 18. .

그러나, 상기와 같이 구성되어 있는 종래 창문형 에어컨은 강우량이 많은 지역이나 해안가 등에 설치되는 경우에 외부에서 침투되는 빗물이나 염수가 실외측에 설치되는 열교환기(20)의 부품들을 부식시키는데, 이와 같은 부식이 통상 구리재질인 냉매관(23)과 그 냉매관(23)에 접촉되어 있는 알루미늄 재질인 방열핀(22)간의 전위차부식에 의하여 부식이 급격히 진행되며, 특히 상대적으로 갈바닉(galvanic)계열이 낮은 알루미늄 재질의 방열핀(22)에서 더욱 빠르게 진행되어 결과적으로 열교환기(20)의 성능을 저하시키고 사용수명을 급격히 저하시키는 문제점이 있었다.However, the conventional window type air conditioner configured as described above corrodes the parts of the heat exchanger 20 installed in the outdoor side when rainwater or salt water penetrated from the outside when installed in an area of heavy rainfall or coastal water. Corrosion progresses rapidly due to the potential difference corrosion between the ordinary copper coolant pipe 23 and the heat dissipation fin 22 made of aluminum, which is in contact with the coolant pipe 23. In particular, aluminum having a relatively low galvanic series is used. The heat dissipation fin 22 of the material proceeds faster and as a result, there is a problem in lowering the performance of the heat exchanger 20 and a sharp decrease in the service life.

상기와 같은 문제점을 감안하여 안출한 본 발명의 목적은 냉매관과 방열핀 사이의 전위차부식이 발생되지 않도록 하여 전위차에 위한 부품들의 부식이 급속히 진행되는 것을 방지하여 열교환기의 사용수명을 향상시키도록 하는데 적합한 에어컨 열교환기의 부식방지장치를 제공함에 있다.An object of the present invention devised in view of the above problems is to prevent the corrosion of the components for the potential difference rapidly to prevent the potential difference corrosion between the refrigerant pipe and the heat sink fins to improve the service life of the heat exchanger. It is to provide a corrosion protection device of a suitable air conditioner heat exchanger.

도 1은 종래 창문형 에어컨의 구조를 보인 사시도.1 is a perspective view showing the structure of a conventional window air conditioner.

도 2는 종래 창문형 에어컨의 구조를 보인 횡단면도.Figure 2 is a cross-sectional view showing the structure of a conventional window air conditioner.

도 3은 종래 열교환기의 구조를 보인 정면도.Figure 3 is a front view showing the structure of a conventional heat exchanger.

도 4는 본 발명 에어컨 열교환기의 부식방지장치를 보인 정면도.Figure 4 is a front view showing a corrosion preventing device of the present invention air conditioner heat exchanger.

도 5는 도 4의 A부 확대단면도.5 is an enlarged cross-sectional view of portion A of FIG.

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

21,21' : 고정대 22 : 방열핀21,21 ': Fixture 22: Heat dissipation fin

23 : 냉매관 100 : 코팅층23: refrigerant tube 100: coating layer

상기와 같은 본 발명의 목적을 달성하기 위하여 일정 간격을 두고 설치되는 한쌍의 고정대와, 그 고정대의 내부에 설치되는 다수개의 방열핀 및 그 방열핀에 결합되는 냉매관을 구비하여 구성되는 통상의 에어컨 열교환기에 있어서,In order to achieve the object of the present invention as described above, a conventional air conditioner heat exchanger comprising a pair of fixing rods installed at regular intervals, a plurality of heat dissipation fins installed inside the holder, and a refrigerant pipe coupled to the heat dissipation fins. In

상기 냉매관과 방열핀간의 전위차부식이 발생되는 것을 방지하기 위해 냉매관의 외주면에 방열핀과 동일재질의 코팅층을 형성한 것을 특징으로 하는 에어컨 열교환기의 부식방지장치가 제공된다.In order to prevent the potential difference corrosion between the refrigerant pipe and the heat dissipation fin is provided on the outer peripheral surface of the refrigerant pipe is provided with a corrosion prevention device of the air conditioner heat exchanger, characterized in that the coating layer of the same material as the heat dissipation fin is formed.

상기와 같이 구성되어 있는 열교환기가 구비되는 에어컨은 전원이 인가되고 송풍팬이 회전하면 실내의 공기가 흡입구를 통하여 케이스의 내부로 흡입되고 실내측 열교환기를 통과하며 차가운 공기로 열교환되어 다시 실내로 송풍되며, 실외측에 설치된 열교환기에서는 냉동싸이클에 의하여 열이 발생되며, 이와 같이 발생되는 열은 냉각팬에서 송풍되는 바람에 의하여 냉각되어 진다.When the air conditioner having the heat exchanger configured as described above is supplied with power and the blowing fan rotates, the air in the room is sucked into the inside of the case through the intake port, passes through the heat exchanger in the room, heat exchanged with cold air, and is blown back into the room. In the heat exchanger installed at the outdoor side, heat is generated by the freezing cycle, and the heat generated in this way is cooled by the wind blown from the cooling fan.

그리고, 상기와 같이 설치되는 열교환기는 방열핀에 형성된 통공에 냉매관이 삽입된 후 확관하여 조립되는데, 그와 같이 조립되는 냉매관의 외주면이 방열핀과 동일재질의 코팅층이 형성되어 있으므로, 냉매관과 방열핀간의 전위차에 의한 급격한 부식발생이 방지되어 진다.The heat exchanger installed as described above is assembled by expanding after the refrigerant pipe is inserted into the through hole formed in the heat dissipation fin. The outer circumferential surface of the refrigerant tube thus assembled is formed with a coating layer of the same material as the heat dissipation fin. Abrupt corrosion caused by the potential difference of liver is prevented.

이하, 상기와 같이 구성되어 있는 본 발명을 첨부된 도면의 실시예를 참고하여 보다 상세히 설명하면 다음과 같다.Hereinafter, with reference to the embodiment of the accompanying drawings, the present invention configured as described above in more detail as follows.

창문형 에어컨의 기본 구조는 도 1과 도 2에 도시된 종래의 구성과 동일하므로 여기에서는 자세한 설명은 생략한다. 다만 종래와 동일한 부분에 대하여는 동일부호를 부여하여 설명한다.Since the basic structure of the window type air conditioner is the same as the conventional configuration shown in Figs. 1 and 2, a detailed description thereof will be omitted. However, the same parts as in the prior art will be described with the same reference numerals.

도 4와 도 5에 도시된 바와 같이, 에어컨의 열교환기는 일정간격을 두고 양측에 고정대(21)(21')가 설치되어 있고, 그 고정대(21)(21')의 내측에 여러개의 방열핀(22)들이 등간격으로 설치되어 있으며, 그 방열핀(22)들에 형성된 통공(22a)에는 냉매가 순환되는 냉매관(23)이 지그재그 형상으로 삽입되어 결합되어 있으며, 그와 같이 결합되는 냉매관(23)의 외주면에는 냉매관(23)과 방열핀(22)간의 전위차가 발생되지 않도록 방열핀(22)과 동일재질의 코팅층(100)이 형성되어 있다.As shown in Figures 4 and 5, the heat exchanger of the air conditioner is provided on both sides with a fixed interval (21, 21 '), a plurality of heat dissipation fin ( 22 are installed at equal intervals, the through-hole 22a formed in the heat dissipation fins 22 are coupled to the refrigerant pipe 23 through which the refrigerant is circulated in a zigzag shape. On the outer circumferential surface of 23, a coating layer 100 having the same material as that of the heat dissipation fin 22 is formed so that a potential difference between the refrigerant pipe 23 and the heat dissipation fin 22 does not occur.

즉, 열교환기(19)(20)를 이루고 있는 방열핀(22)은 알루미늄 재질이고, 냉매관(23)은 동 파이프로된 통상적인 열교환기에서는 냉매관(23)의 외주면에 알루미늄 재질의 코팅층(100)을 형성하게 된다.That is, the heat dissipation fins 22 constituting the heat exchanger 19 and 20 are made of aluminum, and the coolant tube 23 is an aluminum coating layer on the outer circumferential surface of the coolant tube 23 in the conventional heat exchanger made of copper pipe. 100).

부연하여 설명하면, 열교환기(19)(20)의 부식은 이종금속의 전해질내에서의 전위차에 의한 전위차 부식(GALVANIC CORROSION)이 지배적이다. 열교환기를 이루는 이 3가지 이종금속은 부식환경하에서 전기화학계열이 다르며, 열교환기 부품중 동(Cu)이 부식이 가장작고, Fe, Zn, Al의 순이다. 그러나, Al은 비록 부식환경에서 부식이 잘되는 편이나 부식이 발생함과 동시에 부식에 강한 산화피막이 형성되어 Zn과 Fe와 같이 Al과 같은 내부식에 강한 산화피막이 형성되지 않는 재료가 열교환기에서 전위차 부식에 의하여 가장 먼저 부식현상이 발생하게 되고, 점차 Al, Cu의 순으로 부식이 진행된다.Incidentally, the corrosion of the heat exchanger 19, 20 is dominated by the GALVANIC CORROSION due to the potential difference in the electrolyte of the dissimilar metal. The three dissimilar metals that make up the heat exchanger differ in their electrochemical series under the corrosive environment. Among the heat exchanger parts, copper (Cu) has the least corrosion and is in the order of Fe, Zn and Al. However, Al is highly corrosive in a corrosive environment, but the corrosion occurs and at the same time, an oxide film that is resistant to corrosion is formed, so that corrosion resistant materials such as Zn and Fe, such as Al, are not formed. Corrosion occurs first, and then corrosion proceeds in the order of Al and Cu.

여기서, 전기화학계열이란, 각종 금속들이 환원되려고 하는 경향들을 수소가 환원되려고 하는 경향을 기준으로 한 크기로 나타낸 것으로 수소가 환원되려고 하는 경향보다 더 큰 경향을 가진 금속을 (+)전위, 더 작은 경향을 가진 금속을 (-)전위를 순서대로 나열한 것으로, (-)전위가 클수록 부식이 잘된다.Here, the electrochemical series refers to the tendency of various metals to be reduced based on the tendency of hydrogen to be reduced, and that the metal having a larger tendency than the tendency of hydrogen to be reduced has a positive potential, Metals with a tendency are listed in order of (-) potential, and the higher (-) potential, the better the corrosion.

열교환기의 구성요소들의 전기화학계열(25℃ 수용액에서의 표준전위 전극)은 아래의 표와 같다.The electrochemical series (standard potential electrode in 25 ° C aqueous solution) of the components of the heat exchanger are shown in the table below.

따라서, 본 발명에서는 열교환기(19)(20)의 제조시에 통상적으로 방열핀(22)에 형성된 통공(22a)에 냉매관(23)을 삽입하여 확관작업으로 조립하게 되는데, 이때 냉매관(23)의 외주면에 알루미늄 재질의 코팅층(100)을 형성한 상태에서 확관작업을 하여 냉매관(23)의 표면에 코팅된 알루미늄 재질의 코팅층(100)과 동일재질인 알루미늄 재질의 방열핀(22)이 접촉되므로 냉매관(23)과 방열핀(22) 사이의 전위차에 의한 부식발생이 방지되어 지게 된다.Therefore, in the present invention, during the manufacture of the heat exchanger 19, 20, the refrigerant pipe 23 is inserted into the through hole 22a formed in the heat dissipation fin 22, and then assembled by expansion. The heat dissipation fin 22 made of aluminum is the same as the aluminum coating layer 100 coated on the surface of the refrigerant pipe 23 by expanding the pipe in the state in which the aluminum coating layer 100 is formed on the outer circumferential surface thereof. Therefore, the occurrence of corrosion due to the potential difference between the refrigerant pipe 23 and the heat dissipation fin 22 is prevented.

이상에서 상세히 설명한 바와 같이, 본 발명 에어컨 열교환기의 부식방지장치는 열교환기의 냉매관 외주면에 방열핀과 동일재질의 코팅층을 형성하여 냉매관과 방열핀의 조립시 동일재질인 코팅층과 방열핀이 접촉되도록 함으로써, 부품들간의 전기적인 접촉에 의하여 발생되는 전위차부식의 발생을 차단하게 되어, 부품들의 급격한 부식이 방지되어지고, 그에 따라 열교환기의 사용수명이 향상되어지는 효과가 있다.As described above in detail, the corrosion prevention apparatus of the air conditioner heat exchanger of the present invention forms a coating layer of the same material as the heat dissipation fins on the outer circumferential surface of the refrigerant pipe of the heat exchanger, so that the same coating layer and the heat dissipation fins are contacted when the refrigerant tube and the heat dissipation fins are assembled. In order to prevent the occurrence of potential corrosion caused by electrical contact between the parts, the rapid corrosion of the parts is prevented, thereby improving the service life of the heat exchanger.

Claims (2)

일정 간격을 두고 설치되는 한쌍의 고정대와, 그 고정대의 내부에 설치되는 다수개의 방열핀 및 그 방열핀에 결합되는 냉매관을 구비하여 구성되는 통상의 에어컨 열교환기에 있어서,In a conventional air conditioner heat exchanger comprising a pair of fixing rods that are installed at regular intervals, a plurality of heat sink fins installed in the interior of the holder and a refrigerant pipe coupled to the heat sink fins, 상기 냉매관과 방열핀간의 전위차부식이 발생되는 것을 방지하기 위해 냉매관의 외주면에 방열핀과 동일재질의 코팅층을 형성한 것을 특징으로 하는 에어컨 열교환기의 부식방지장치.Corrosion preventing apparatus of the air conditioner heat exchanger, characterized in that to form a coating layer of the same material as the heat radiation fins on the outer peripheral surface of the refrigerant pipe to prevent the potential difference corrosion between the refrigerant pipe and the heat radiation fins. 제 1항에 있어서, 상기 코팅층은 방열핀과 동일한 재질의 알루미늄 재질인 것을 특징으로 하는 에어컨 열교환기의 부식방지장치.The corrosion preventing apparatus of claim 1, wherein the coating layer is made of aluminum having the same material as that of the heat dissipation fins.
KR1020020078857A 2002-12-11 2002-12-11 Apparatus for preventing corrosion of condenser in air conditioner KR20040051033A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940002833B1 (en) * 1989-08-24 1994-04-04 쇼와 알루미늄 가부시기가이샤 Aluminum fin material for heat exchanger
JPH0970658A (en) * 1995-09-05 1997-03-18 Nippon Light Metal Co Ltd Manufacture of aluminum-made heat exchanger
JPH11325792A (en) * 1998-05-13 1999-11-26 Furukawa Electric Co Ltd:The Heat exchanger
KR20000070349A (en) * 1997-01-24 2000-11-25 르미욱스 폴 제이 Heat exchanger core based on aluminum and process for producing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940002833B1 (en) * 1989-08-24 1994-04-04 쇼와 알루미늄 가부시기가이샤 Aluminum fin material for heat exchanger
JPH0970658A (en) * 1995-09-05 1997-03-18 Nippon Light Metal Co Ltd Manufacture of aluminum-made heat exchanger
KR20000070349A (en) * 1997-01-24 2000-11-25 르미욱스 폴 제이 Heat exchanger core based on aluminum and process for producing the same
JPH11325792A (en) * 1998-05-13 1999-11-26 Furukawa Electric Co Ltd:The Heat exchanger

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