KR100747992B1 - Pipe connecting structure for oil cooler - Google Patents

Pipe connecting structure for oil cooler Download PDF

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Publication number
KR100747992B1
KR100747992B1 KR1020060077657A KR20060077657A KR100747992B1 KR 100747992 B1 KR100747992 B1 KR 100747992B1 KR 1020060077657 A KR1020060077657 A KR 1020060077657A KR 20060077657 A KR20060077657 A KR 20060077657A KR 100747992 B1 KR100747992 B1 KR 100747992B1
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South Korea
Prior art keywords
oil cooler
pipe
oil
flare connector
flare
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KR1020060077657A
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Korean (ko)
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정범용
서정훈
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주식회사 두원공조
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Priority to KR1020060077657A priority Critical patent/KR100747992B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/08—Arrangements of lubricant coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0234—Header boxes; End plates having a second heat exchanger disposed there within, e.g. oil cooler
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • F01M2005/004—Oil-cooled engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00—Applications
    • F01P2050/22—Motor-cars

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

A pipe connecting structure for an oil cooler is provided to assemble a pipe simply in a one-touch manner so as to reduce the number of assembly processes, and to prevent oil leakage securely by using a sealing ring. A pipe connecting structure for an oil cooler includes an oil cooler main body(20), a flare connector(24), and a pipe(26). The oil cooler main body is formed of a dual pipe and installed in a radiator tank. The flare connector is coupled to an outer wall of the oil cooler main body and fixed to a radiator tank wall by nuts(22). The pipe is fixed to the flare connector. The flare connector includes a flange part(24a) formed at a lower end thereof and contacted by the radiator tank wall. The radiator tank wall and the nut are sequentially coupled to a cylindrical part formed on the flange to fix the oil cooler main body. A first stopper ring to which a sealing ring is fitted is formed at an inner lower part of the flare connector.

Description

오일 쿨러의 유출입관 조립구조{pipe connecting structure for oil cooler} Pipe connecting structure for oil cooler

도1은 라디에이터의 탱크에 내장되는 일반적인 오일쿨러를 나타내는 구성도, 1 is a block diagram showing a general oil cooler built in the tank of the radiator;

도2는 종래 오일쿨러의 유출입관 조립구조를 나타내는 단면도,2 is a cross-sectional view showing an outflow pipe assembly structure of a conventional oil cooler;

도3은 본 발명에 의한 일 실시예에 의한 오일쿨러의 유출입관 조립구조를 나타내는 단면도,Figure 3 is a cross-sectional view showing the outflow pipe assembly structure of the oil cooler according to an embodiment of the present invention;

도4는 도3의 분리 사시도이다..4 is an exploded perspective view of FIG. 3.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

20 : 오일쿨러 본체 22 : 너트20: oil cooler body 22: nut

24 : 플래어 커넥터 24c : 제1걸림홈테24: flare connector 24c: first locking groove

24d : 경사면 24e: 제4걸림홈테24d: slope 24e: fourth locking groove

26 : 유출입관 26a : 돌출부26: outflow pipe 26a: protrusion

28 : 밀봉링 30 : 고정와셔28: sealing ring 30: fixing washer

본 발명은 오일쿨러에 관한 것으로서, 보다 상세하게는 오일쿨러의 유출입관 조립구조에 관한 것이다.The present invention relates to an oil cooler, and more particularly, to an outflow pipe assembly structure of an oil cooler.

일반적으로 자동변속 차량에 있어서, 오일쿨러는 토크 컨버터나 동력전달 계통의 엔진오일을 냉각시키는 것으로 라디에이터의 탱크에 내장되어 엔진 냉각수를 이용하여 냉각하도록 하고 있다. In general, in an automatic transmission vehicle, an oil cooler cools engine oil of a torque converter or a power transmission system, and is mounted in a tank of a radiator to cool using engine coolant.

도1에 도시한 바와 같이, 종래 라디에이터의 탱크에 내장되는 오일쿨러(1)는 이중관으로 된 본체(2)와, 본체의 양측 외벽에 설치된 유입관(4)과 유출관(6)이 설치된 구조로서, 상기 본체(2)는 도2에 도시한 바와 같이 외관(8) 및 내관(10)과, 이 외관(8)과 내관(10) 사이에 오일의 냉각효율을 높이기 위한 전열핀(12)이 배치된 구조이다. As shown in Fig. 1, the oil cooler 1 incorporated in a tank of a conventional radiator has a structure in which a main body 2 formed of a double tube and an inlet tube 4 and an outlet tube 6 provided on both outer walls of the main body are installed. As shown in Fig. 2, the main body 2 has an outer tube 8 and an inner tube 10, and a heat transfer fin 12 for increasing the cooling efficiency of oil between the outer tube 8 and the inner tube 10. This is a structure arranged.

도2에 도시한 바와 같이, 상기 외관(8)에는 플래어 커넥터(14)가 너트(16)에 의해 라이에이터 탱크 벽(W)에 고정되고, 오일 유입관(4)과 오일 유출관(6)은 플래어 너트(18)에 의해 플래어 커넥터(14)에 고정되는 구조로 되어 있다.As shown in Fig. 2, on the outer surface 8, a flare connector 14 is fixed to the riser tank wall W by a nut 16, and an oil inlet pipe 4 and an oil outlet pipe 6 are shown. The silver flare nut 18 is fixed to the flare connector 14.

이와 같이 구성된 오일쿨러(1)에서 상기 오일 유입관(4)과 오일 유출관(6)을 통해 외관(8)과 내관(10) 사이에 오일이 유입/유출하게 되어 있다. 상기 외관(8)의 외부와 내관(10)의 내부에는 냉각수가 흐르면서 상기 오일과 열교환하게 된다. 상기 전열핀(12)은 다수의 코루게이트핀이 소정의 간격으로 접합하여 형성된 구조이다.In the oil cooler 1 configured as described above, oil flows in and out between the outer tube 8 and the inner tube 10 through the oil inlet tube 4 and the oil outlet tube 6. Cooling water flows through the exterior of the exterior 8 and the interior of the inner tube 10 to exchange heat with the oil. The heat transfer fin 12 is a structure formed by joining a plurality of corrugated fins at predetermined intervals.

그런데, 종래 플래어 커넥터(14)의 외측에 플래어 너트(18)를 사용하여, 오일 유출입관(4)(6)을 조립하는 구조는 누유방지를 위해 소정크기 이상의 체결력을 가지도록 하는 것이 필요한데, 플래어 너트의 체결형식으로 인한 조립의 어려움으 로 인해 너트가 플래어 너트의 조임력의 부족 및 풀림 등으로 인해 누유가 발생하게 된다는 문제점이 있었다.By the way, by using the flare nut 18 on the outside of the conventional flare connector 14, the structure of assembling the oil outflow pipe (4) (6) needs to have a clamping force of a predetermined size or more to prevent leakage, flare Due to the difficulty of assembly due to the fastening type of the nut, there is a problem in that the nut is leaked due to the lack of tightening force and loosening of the flare nut.

따라서, 본 발명은 상기 문제점을 해결하기 위해 이루어진 것으로서, 본 발명의 목적은 플래어 커넥터의 내측에서 유출입관을 원터치식으로 간단히 조립하고누유방지를 확실히 하는 오일쿨러의 유출입관 조립구조를 제공하는 데 있다.Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide an inlet and outlet pipe assembly structure of an oil cooler that simply assembles the outlet pipe in one-touch type inside the flare connector and ensures leakage prevention. .

상기 목적을 달성하기 위한 본 발명에 의한 오일쿨러의 유출입관 조립구조는, 라디에이터 탱크에 결합되는 오일쿨러 본체와, 상기 오일쿨러 본체에 결합되어 너트에 의해 라디에이터 탱크 벽에 고정된 플래어 커넥터와, 상기 플래어 커넥터에 고정되는 유출입관을 구비한 오일쿨러에 있어서, 상기 플래어 커넥터의 내측 하부에 형성된 제1걸림홈테와, 상기 제1걸림홈테의 상측에 형성된 경사면과, 상기 경사면의 상측에 형성된 제2걸림홈테를 구비하고, 상기 유출입관의 조립부 외면에는 상기 경사면에 걸려 밀착하는 돌출부가 형성되며, 오일의 누유를 방지하도록 유출입관의 단부에 끼워져 상기 제1걸림홈테에 걸리는 밀봉링과, 상기 유출입관을 고정하도록 상기 돌출부에 걸리는 한편 상기 제2걸림홈테에 걸리는 고정와셔를 추가로 구비하는 것을 특징으로 한다.Oil outflow pipe assembly structure of the oil cooler according to the present invention for achieving the above object, the oil cooler body coupled to the radiator tank, the flare connector is coupled to the oil cooler body fixed to the radiator tank wall by a nut, and An oil cooler having an outflow pipe fixed to a flare connector, comprising: a first catching groove formed in an inner lower portion of the flare connector, an inclined surface formed on an upper side of the first catching groove, and a second catching formed on an upper side of the inclined surface A groove frame is provided, and a protruding portion is formed on the outer surface of the assembly portion of the outflow pipe to be in close contact with the inclined surface, and is sealed at the end of the outflow pipe so as to prevent leakage of oil, and the sealing ring is caught on the first catching home frame. It is characterized in that it further comprises a fixing washer that is caught on the protruding portion to secure the second locking groove to secure the It shall be.

이하 본 발명의 실시예에 대핸 첨부도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings for an embodiment of the present invention will be described in detail.

본 발명의 오일쿨러의 유출입관 조립구조는 이중관식 오일쿨러와 적층형(사각 플레이트 적층) 오일쿨러에 모두 적용가능하며, 내장형 오일쿨러와 외장형(공냉식) 오일쿨러에도 적용가능하지만, 이하의 설명에서는 이중관식이고 내장형인 오일 쿨러에 적용된 구조를 예로 들어 설명한다.The outflow pipe assembly structure of the oil cooler of the present invention is applicable to both a double pipe oil cooler and a laminated (square plate laminated) oil cooler, and is also applicable to a built-in oil cooler and an external (air-cooled) oil cooler. The structure applied to the tubular and built-in oil cooler will be described as an example.

도3은 본 발명에 의한 오일쿨러의 유출입관 조립구조를 나타내는 단면도이고, 도4는 도3의 분리 사시도이다. 오일 유입관 및 오일 유출관은 오일쿨러 본체의 양측에 설치되는데, 이하의 설명에서는 한쪽의 설치된 관을 유출입관이라고 통합하여 호칭하고 예를 들어 설명한다.Figure 3 is a cross-sectional view showing the outflow pipe assembly structure of the oil cooler according to the present invention, Figure 4 is an exploded perspective view of FIG. The oil inflow pipe and the oil outflow pipe are installed on both sides of the oil cooler main body. In the following description, one of the installed pipes will be collectively referred to as an outflow pipe and will be described by way of example.

본 발명의 일 실시예가 적용되는 오일쿨러는 이중관으로 이루어지며 라디에이터 탱크에 내장되는 오일쿨러 본체(20)와, 상기 오일쿨러 본체(20)의 외벽에 결합되어 너트(22)에 의해 라디에이터 탱크 벽(W)에 고정된 플래어 커넥터(24)와, 상기 플래어 커넥터에 고정되는 유출입관(26)을 구비한다.The oil cooler to which an embodiment of the present invention is applied consists of an oil cooler body 20 which is formed of a double tube and is built in a radiator tank, and is coupled to an outer wall of the oil cooler body 20 by a nut 22 by a radiator tank wall ( And a flare connector 24 fixed to W) and an outflow pipe 26 fixed to the flare connector.

상기 플래어 커넥터(24)는 그 하단부에 사기 라디에이터 탱크 벽(W)이 밀착하는 플랜지부(24a)를 구비하고, 상기 플랜지(24a)의 상측으로 형성된 원통부(24b)에 상기 라디에이터 탱크 벽(W) 및 상기 너트(22)가 순차적으로 결합되어 오일쿨러 본체(20)가 고정된다.The flare connector 24 has a flange portion 24a at which a lower radiator tank wall W is in close contact with a lower end thereof, and the radiator tank wall W is disposed at a cylindrical portion 24b formed above the flange 24a. ) And the nut 22 are sequentially coupled to the oil cooler body 20.

상기 플래어 커넥터(24)의 내측 하부에는 후술하는 밀봉링이 끼워지는 제1걸림홈테(24c)가 형성되고, 상기 제1걸림홈테(24c)의 상측에는 후술하는 돌출부가 걸려 밀착하는 경사면(24d)이 형성되며, 상기 경사면(24d)의 상측에는 후술하는 고정와셔가 걸리는 제2걸림홈테(24e)가 형성되며, 상기 제1걸림홈테(24c)의 하측에는 상기 유출입관(26)의 하단부가 걸리는 걸림턱(24f)이 형성되어 있다.A first catching groove 24c is formed at an inner lower portion of the flare connector 24, and a sealing portion to be described later is fitted thereon, and an inclined surface 24d closes the protruding portion to be described later on the upper side of the first catching groove 24c. Is formed, the second engaging groove 24e is formed on the upper side of the inclined surface (24d) is fastened to the fixed washer to be described later, the lower end of the outflow pipe 26 is caught on the lower side of the first engaging groove (24c) A locking jaw 24f is formed.

상기 유출입관(26)의 조립부 외면에는 상기 경사면(24d)에 걸리면서 밀착하는 돌출부(26a)가 형성된다.A protruding portion 26a is formed on the outer surface of the assembly portion of the outflow pipe 26 and is in close contact with the inclined surface 24d.

상기 플래어 커넥터(24)의 제1걸림홈테(24c)에는 오일의 누유를 방지하도록 밀봉링(28)이 유출입관(26)의 단부에 끼워져 걸리게 된다. 그리고, 플래어 커넥터(24)의 제2걸림홈테(24e)에는 상기 유출입관(26)을 고정하도록 고정와셔(30)가 상기 돌출부(26a)에 그 저면이 걸리고 그 외주부가 상기 제2걸림홈테(24e)에 걸리게 된다.The sealing ring 28 is fitted to the end of the inlet and outlet pipe 26 so as to prevent oil leakage from the first locking groove 24c of the flare connector 24. In addition, a fixing washer 30 is fastened to the second engaging groove 24e of the flare connector 24 by the fixing washer 30 to fix the outflow pipe 26, and an outer circumferential portion thereof is connected to the second locking groove 24. 24e).

상기 밀봉링(28)은 오링으로 되어 있다.The sealing ring 28 is an O-ring.

이와 같이 구성된 본 발명에 의한 오일쿨러의 유출입관 조립구조는, 너트의 체결력에 의한 누유방지 기능을 밀봉링(28)과 유출입관(26)에 형성된 돌출부(26a)에 의해 수행하므로 누유발생의 우려가 없고, 유출입관(26)을 고정와셔(30)에 의해 원터치식으로 간단히 걸리게 한다.The outflow pipe assembly structure of the oil cooler according to the present invention configured as described above has a fear of oil leakage since the leakage preventing function due to the tightening force of the nut is performed by the protrusion 26a formed on the sealing ring 28 and the outflow pipe 26. And the outflow inlet pipe 26 is simply caught by the fixed washer 30 in a one-touch manner.

본 발명에 의한 오일쿨러의 유출입관 구조에 의하면, 플래어 커넥터의 내측에서 유출입관을 원터치식으로 간단히 조립하여 조립공정을 단축하고 부품비를 줄이게 하며, 밀봉링에 의한 밀봉방식으로 누유방지를 확실히 하는 효과가 있다.According to the outflow pipe structure of the oil cooler according to the present invention, the outflow pipe of the flare connector can be easily assembled by one-touch type to shorten the assembly process and reduce the parts cost, and to secure the leakage prevention by the sealing method by the sealing ring. There is.

Claims (1)

라디에이터 탱크에 결합되는 오일쿨러 본체(20)와, 상기 오일쿨러 본체에 결합되어 너트(22)에 의해 라디에이터 탱크 벽(W)에 고정된 플래어 커넥터(24)와, 상기 플래어 커넥터(24)에 고정되는 유출입관(26)을 구비한 오일쿨러에 있어서, An oil cooler body 20 coupled to the radiator tank, a flare connector 24 coupled to the oil cooler body and fixed to the radiator tank wall W by a nut 22, and fixed to the flare connector 24. In the oil cooler having the outflow pipe 26 to be, 상기 플래어 커넥터(24)의 내측 하부에 형성된 제1걸림홈테(24c)와, 상기 제1걸림홈테(24c)의 상측에 형성된 경사면(24d)과, 상기 경사면(24d)의 상측에 형성된 제2걸림홈테(24e)를 구비하고, A first locking groove 24c formed at an inner lower portion of the flare connector 24, an inclined surface 24d formed on an upper side of the first locking groove 24c, and a second locking formed on an upper side of the inclined surface 24d. With a home frame 24e, 상기 유출입관(26)의 조립부 외면에는 상기 경사면(24d)에 걸려 밀착하는 돌출부(26a)가 형성되며, The outer surface of the assembly portion of the outflow pipe 26 is formed with a protrusion (26a) is in close contact with the inclined surface (24d), 오일의 누유를 방지하도록 유출입관(26)의 단부에 끼워져 상기 제1걸림홈테(24c)에 걸리는 밀봉링(28)과, 상기 유출입관(26)을 고정하도록 상기 돌출부(26a)에 걸리는 한편 상기 재2걸림홈테(24e)에 걸리는 고정와셔(30)를 추가로 구비하는 것을 특징으로 하는 오일쿨러의 유출입관 구조.The sealing ring 28 is fitted to the end of the inlet and outlet pipe 26 to prevent leakage of oil, and is caught by the protrusion 26a to fix the outlet and inlet pipe 26. The oil inlet pipe structure of the oil cooler, characterized in that it further comprises a fixing washer (30) caught in the second locking groove (24e).
KR1020060077657A 2006-08-17 2006-08-17 Pipe connecting structure for oil cooler KR100747992B1 (en)

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