KR100580030B1 - Joint structure of the exhaust system hanger bracket for vehicle - Google Patents

Joint structure of the exhaust system hanger bracket for vehicle Download PDF

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Publication number
KR100580030B1
KR100580030B1 KR1020040096660A KR20040096660A KR100580030B1 KR 100580030 B1 KR100580030 B1 KR 100580030B1 KR 1020040096660 A KR1020040096660 A KR 1020040096660A KR 20040096660 A KR20040096660 A KR 20040096660A KR 100580030 B1 KR100580030 B1 KR 100580030B1
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KR
South Korea
Prior art keywords
bracket
hanger
exhaust system
coupling
vehicle
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KR1020040096660A
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Korean (ko)
Inventor
하태선
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기아자동차주식회사
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Priority to KR1020040096660A priority Critical patent/KR100580030B1/en
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Publication of KR100580030B1 publication Critical patent/KR100580030B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • 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
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Exhaust Silencers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

본 발명은 자동차용 배기계통의 행거브라켓의 결합구조에 관한 것으로서, 더욱 상세하게는 차체의 바닥패널과 배기시스템의 각 부품들을 연결하는 행거브라켓에 있어서, 상기 브라켓의 길이를 줄이고, 이 브라켓의 길이방향으로 바닥패널과 각 부품들을 연결함으로써, 행거에 걸리는 하중에 의한 모멘트를 감소시켜 행거브라켓의 강성값을 증대시킬수 있도록 한 자동차용 배기계통의 행거브라켓의 결합구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupling structure of a hanger bracket of an automobile exhaust system, and more particularly, in a hanger bracket connecting a bottom panel of a vehicle body and respective parts of an exhaust system, the length of the bracket is reduced, By connecting the floor panel and the respective parts in the direction, the hanger bracket of the automobile exhaust system to increase the rigidity value of the hanger bracket by reducing the moment due to the load on the hanger.

이를 위해, 본 발명은 후면에 고정홀이 형성된 차체연결브라켓과; 상기 차체연결브라켓의 후면에 결합되며, 상하부에 제1 및 제2결합홀이 상기 차체연결브라켓의 길이방향으로 관통형성된 행거와; 상기 구멍과 제1결합홀을 관통하여 상기 차체연결브라켓 및 행거를 결합하는 한쌍의 볼트와 너트를 포함하여 구성된 자동차용 배기계통의 행거브라켓의 결합구조를 제공한다.To this end, the present invention and the body connection bracket formed with a fixing hole in the rear; A hanger coupled to a rear surface of the vehicle body connecting bracket and having first and second coupling holes penetrated in a longitudinal direction of the body connecting bracket at upper and lower parts thereof; It provides a coupling structure of the hanger bracket of the vehicle exhaust system comprising a pair of bolts and nuts for coupling the body connection bracket and the hanger through the hole and the first coupling hole.

차체연결브라켓, 고정홀, 행거, 결합홀, 볼트와 너트Body connection bracket, fixing hole, hanger, coupling hole, bolt and nut

Description

자동차용 배기계통의 행거브라켓의 결합구조{Joint structure of the exhaust system hanger bracket for vehicle} Joint structure of the exhaust system hanger bracket for vehicle}             

도 1은 본 발명에 따른 행거브라켓을 나타내는 사시도.1 is a perspective view showing a hanger bracket according to the present invention.

도 2는 본 발명에 따른 행거브라켓을 나타내는 분해사시도.Figure 2 is an exploded perspective view showing a hanger bracket according to the present invention.

도 3은 본 발명과 종래의 행거브라켓의 결합상태와 외부하중이 걸리는 지점을 나타내는 비교개념도.Figure 3 is a comparison conceptual diagram showing the point of engagement and external load of the present invention and the conventional hanger bracket.

도 4는 본 발명과 종래의 행거브라켓을 차체 모델에 연결하여 얻은 고유진동수 값의 개선효과를 나타내는 비교해석도.Figure 4 is a comparative analysis showing the effect of improving the natural frequency value obtained by connecting the present invention and the conventional hanger bracket to the vehicle body model.

도 5는 종래의 배기계통의 부품 연결 및 고정상태를 나타내는 사시도.5 is a perspective view showing the connection and fixing of the components of the conventional exhaust system.

도 6은 종래의 행커브라켓을 나타내는 사시도.Figure 6 is a perspective view of a conventional hanger bracket.

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

1 : 바닥패널 3 : 프런트 배기파이프1: bottom panel 3: front exhaust pipe

4 : 센터 배기파이프 5 : 3원촉매 변환장치4: center exhaust pipe 5: three-way catalytic converter

7 : 보조 소음기 8 : 메인 머플러7: auxiliary silencer 8: main muffler

10 : 차체연결브라켓 12 : 고정홀10: body connection bracket 12: fixing hole

14 : 제1볼트구멍 15 : 제2볼트구멍14: first bolt hole 15: second bolt hole

20 : 행거 22 : 제1결합홀20: hanger 22: first coupling hole

24 : 제2결합홀 30 : 머플러연결브라켓24: second coupling hole 30: muffler connection bracket

40 : 볼트 42 : 너트40: bolt 42: nut

50 : 외부하중 입력점 120 : 연결파이프50: external load input point 120: connection pipe

본 발명은 자동차용 배기계통의 행거브라켓의 결합구조에 관한 것으로서, 더욱 상세하게는 차체의 바닥패널과 배기시스템의 각 부품들을 연결하는 행거브라켓에 있어서, 상기 브라켓의 길이를 줄이고, 이 브라켓의 길이방향으로 바닥패널과 각 부품들을 연결함으로써, 행거에 걸리는 하중에 의한 모멘트를 감소시켜 행거브라켓의 강성값을 증대시킬수 있도록 한 자동차용 배기계통의 행거브라켓의 결합구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupling structure of a hanger bracket of an automobile exhaust system, and more particularly, in a hanger bracket connecting a bottom panel of a vehicle body and respective parts of an exhaust system, the length of the bracket is reduced, By connecting the floor panel and the respective parts in the direction, the hanger bracket of the automobile exhaust system to increase the rigidity value of the hanger bracket by reducing the moment due to the load on the hanger.

일반적으로, 자동차의 배기 시스템은 엔진 각 실린더의 연소가스를 모으는 배기 매니폴드와, 상기 연소가스가 외부로 나가는 배기 파이프와, 더불어 3원촉매 변환장치, 소음기등으로 구성되게 된다. In general, the exhaust system of an automobile is composed of an exhaust manifold for collecting the combustion gas of each cylinder of the engine, an exhaust pipe through which the combustion gas goes out, and a three-way catalytic converter, a silencer, and the like.

도 5에 도시된 바와 같이, 이들의 구성은 상호 각기 연결되어 자동차 차체에 고정되는 바, 먼저 배기 매니폴드에 프런트 배기파이프(3)가 연결되고, 이 프런트 배기파이프(3)의 끝단에 3원촉매 변환장치(5)가 연결되며, 이어서 보조소음기(7)가 연결된다.As shown in Fig. 5, these configurations are connected to each other and fixed to the vehicle body. First, the front exhaust pipe 3 is connected to the exhaust manifold, and the three ends of the front exhaust pipe 3 are rounded. The catalytic converter 5 is connected, followed by the auxiliary silencer 7.

또한, 상기 보조소음기(7)의 후방으로는 센터 배기파이프(4)가 이어지며, 이 센터 배기파이프(4)에는 끝으로 메인 머플러(8)가 연결되게 된다.Further, a center exhaust pipe 4 is connected to the rear of the auxiliary silencer 7, and a main muffler 8 is connected to the center exhaust pipe 4.

이와 같이 상호 연결된 상기 구성품들을 차체의 바닥패널(1)에 고정할 경우, 도 6에 도시된 바와 같이, 그 결합부분에 행거(110)를 사용하여 고정한다.As described above, when the components connected to each other are fixed to the bottom panel 1 of the vehicle body, as shown in FIG. 6, the hanger 110 is fixed to the coupling portion.

보다 상세하게는, 상기 바닥패널(1)에 부착고정되는 제1행거브라켓(100a)과, 행거(110)의 상부에 형성된 한쌍의 제1결합홀에 연결파이프(120)를 삽입하여 결합하고, 하부에 형성된 제2결합홀에 상기 메인 머플러(8) 및 센터 배기파이프(4)를 포함한 각 배기파이프(3,4)에 부착되는 제2행거브라켓(100b)을 삽입하여 결합한다.More specifically, the coupling pipe 120 is inserted into and coupled to the first hanger bracket 100a fixed to the bottom panel 1 and a pair of first coupling holes formed on the hanger 110, The second hanger bracket 100b attached to each of the exhaust pipes 3 and 4 including the main muffler 8 and the center exhaust pipe 4 is inserted into the second coupling hole formed below.

이때, 상기 배기파이프(4)에 부착되는 제2행거브라켓(100b)은 상기 제1행거브라켓(100a)의 길이 방향과 직각방향으로 삽입되고, 상기 연결파이프(120)도 제1결합홀에 제2행거브라켓(100b)과 평행하게 삽입된다.At this time, the second hanger bracket 100b attached to the exhaust pipe 4 is inserted in a direction perpendicular to the longitudinal direction of the first hanger bracket 100a, and the connection pipe 120 is also formed in the first coupling hole. It is inserted parallel to the two hanger bracket (100b).

한편, 엔진 작동시 엔진의 진동은 상기 배기 시스템을 통하여 차체로 전달되며, 이를 차단하기 위하여 고무재질로 된 행거(110)를 제1 및 제2행거브라켓(100a,100b)과 연결하여 엔진의 진동이 차체로 전달되는 것을 줄여준다.On the other hand, the vibration of the engine during the engine operation is transmitted to the vehicle body through the exhaust system, in order to block the vibration of the engine by connecting the hanger 110 made of rubber material with the first and second hanger brackets (100a, 100b) This reduces the transmission to the body.

여기서, 차체 연결 취부 포인트와 행거간의 거리(L1)와, 행거(110)에 걸리는 힘에 의한 모멘트를 상기 브라켓(100a)이 지지하므로, 상기 행거(110)와 브라켓(100a)의 차체 연결 취부 포인트 간의 거리 및 상기 행거(110)에 걸리는 힘의 방향은 차체와 배기 시스템의 각 부품들을 연결하는 행거브라켓의 강성에 중요한 요소가 된다.Here, since the bracket 100a supports the distance L1 between the body connection mounting point and the hanger and the moment due to the force applied to the hanger 110, the body connection mounting point of the hanger 110 and the bracket 100a. The distance between and the direction of the force applied to the hanger 110 is an important factor in the rigidity of the hanger bracket connecting the parts of the vehicle body and the exhaust system.

그러나, 종래의 행거와 브라켓의 차체 연결 취부 포인트 간의 거리가 길고, 상기 행거에 걸리는 힘의 방향과 브라켓의 길이방향이 수직이므로, 상기 행거브라켓에 걸리는 모멘트가 커지므로, 엔진의 진동에 의한 행거의 강성이 떨어지는 문제점이 있다.However, since the distance between the conventional hanger and the vehicle body connection point of the bracket is long and the direction of the force applied to the hanger and the longitudinal direction of the bracket are vertical, the moment applied to the hanger bracket becomes large, so that the hanger caused by the vibration of the engine There is a problem of inferior rigidity.

본 발명은 상기와 같은 점을 감안하여 안출한 것으로서, 브라켓과 행거의 연결방식을 파이프 끼워 맞춤식에서 스크류 체결 형식으로 개선하고, 기존 브라켓 대비 행거의 연결방향을 횡방향에서 종방향으로 바꾸고 브라켓의 길이를 줄임으로써, 행거에 걸리는 모멘트를 감소시키고 행거브라켓의 강성을 증대시킬 수 있도록 한 자동차용 배기계통의 행거브라켓의 결합구조를 제공하는데 그 목적이 있다.
The present invention has been made in view of the above point, and improved the connection method of the bracket and the hanger from the pipe fitting type to the screw fastening type, changing the connection direction of the hanger from the conventional bracket from the transverse direction to the longitudinal direction and the length of the bracket The purpose of the present invention is to provide a coupling structure of a hanger bracket of an exhaust system for an automobile, which reduces the moment applied to the hanger and increases the rigidity of the hanger bracket.

상기한 목적을 달성하기 위한 본 발명은 자동차의 배기계통의 부품을 바닥패널에 연결하여 고정케 하는 자동차용 배기계통의 행거브라켓에 있어서,The present invention for achieving the above object in the hanger bracket of the exhaust system for automobiles to be fixed by connecting the parts of the exhaust system of the vehicle to the floor panel,

후면에 고정홀이 형성된 차체연결브라켓과; 상기 차체연결브라켓의 후면에 결합되며, 상하부에 제1 및 제2결합홀이 상기 차체연결브라켓의 길이방향으로 관통형성된 행거와; 상기 구멍과 제1결합홀을 관통하여 상기 차체연결브라켓 및 행거를 결합하는 한쌍의 볼트와 너트를 포함하여 구성된 것을 특징으로 한다.A body connection bracket having a fixing hole formed at a rear side thereof; A hanger coupled to a rear surface of the vehicle body connecting bracket and having first and second coupling holes penetrated in a longitudinal direction of the body connecting bracket at upper and lower parts thereof; It characterized in that it comprises a pair of bolts and nuts for coupling the body connecting bracket and the hanger through the hole and the first coupling hole.

바람직한 구현예로서, 상기 행거의 제1 및 제2결합홀은 평행하게 형성되고, 머플러연결브라켓은 상기 제2결합홀에 상기 차체연결브라켓의 길이방향으로 끼움결합된 것을 특징으로 한다.In a preferred embodiment, the first and second coupling holes of the hanger are formed in parallel, the muffler connecting bracket is characterized in that the longitudinal coupling of the vehicle body connecting bracket to the second coupling hole.

이하, 본 발명의 바람직한 실시예를 첨부도면을 참조로 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

첨부한 도 1은 본 발명에 따른 행거브라켓을 나타내는 사시도이고, 도 2는 본 발명에 따른 행거브라켓을 나타내는 분해사시도이다.1 is a perspective view showing a hanger bracket according to the present invention, Figure 2 is an exploded perspective view showing a hanger bracket according to the present invention.

본 발명은 브라켓과 행거의 연결방식을 파이프 끼워 맞춤식에서 스크류 체결 형식으로 개선하고, 기존 브라켓 대비 행거의 연결방향을 횡방향에서 종방향으로 바꾸고 브라켓의 길이를 줄임으로써, 행거에 걸리는 모멘트를 감소시키고 행거브라켓의 강성을 증대시킬 수 있도록 한 점에 주안점이 있다.The present invention improves the connection method of the bracket and the hanger from the pipe fitting type to the screw fastening type, by changing the connecting direction of the hanger from the transverse direction to the longitudinal direction and reducing the length of the bracket, compared to the existing bracket, reducing the moment to hang the hanger The main focus is on increasing the rigidity of the hanger bracket.

본 발명은 배기계통의 각 부품들과 차체를 연결하는 행거(20)와, 행거브라켓으로 구성되어 있다. 이때, 상기 행거브라켓은 차체와 행거(20)를 연결하는 차체연결브라켓(10)과, 각 부품들 중 특히 머플러와 행거(20)를 연결하는 머플러연결브라켓(30)에 한정하여 설명하기로 한다.The present invention is composed of a hanger 20 and a hanger bracket for connecting the parts of the exhaust system and the vehicle body. At this time, the hanger bracket will be described in detail to the body connection bracket 10 for connecting the vehicle body and the hanger 20, and the muffler connection bracket 30 for connecting the muffler and the hanger 20 in particular among the components. .

보다 상세하게는, 상기 행거(20)는 근사 타원형상으로 일정한 두께를 가지며, 고무와 같은 탄성을 가지는 재질이다. 이 행거(20)의 상하부에 제1 및 제2결합홀(22,24)이 관통형성되어 있다. 이때, 제1 및 제2결합홀(22,24)은 같은 방향으로 평행하게 형성된다.In more detail, the hanger 20 has a constant thickness in an approximate elliptical shape and is a material having elasticity such as rubber. First and second coupling holes 22 and 24 are formed in upper and lower portions of the hanger 20. In this case, the first and second coupling holes 22 and 24 are formed in parallel in the same direction.

상기 차체연결브라켓(10)은 근사 'ㄱ'자 모양으로 형성되고, 이 차체연결브라켓(10)의 상부 끝단에 차체에 체결하기 위한 제1볼트구멍(14)이 형성되고, 이 제1볼트구멍(14)과 소정간격으로 제2볼트구멍(15)이 형성된다. 이때, 상기 차체연결 브라켓(10)의 후면에는 상기 행거(20)와 연결하기 위한 고정홀(12)이 형성된다.The body connecting bracket 10 is formed in an approximate '-' shape, and a first bolt hole 14 for fastening to the vehicle body is formed at an upper end of the body connecting bracket 10, and the first bolt hole is formed. A second bolt hole 15 is formed at a predetermined interval from 14. At this time, a fixing hole 12 for connecting with the hanger 20 is formed on the rear surface of the body connection bracket 10.

여기서, 상기 제1 및 제2결합홀(22,24)은 상기 차체연결브라켓(10)의 길이방향과 평행한 방향으로 형성되어 있고, 볼트(40)가 제1결합홀(22)과 고정홀(12)을 관통하여 너트(42)와 함께 체결된다. 또한, 머플러연결브라켓(30)도 상기 볼트(40)와 평행한 방향으로 제2결합홀(24)에 삽입고정된다.Here, the first and second coupling holes 22 and 24 are formed in a direction parallel to the longitudinal direction of the body connection bracket 10, and the bolt 40 is fixed to the first coupling hole 22 and the fixing hole. It penetrates through 12 and is fastened together with the nut 42. In addition, the muffler connecting bracket 30 is also inserted into the second coupling hole 24 in a direction parallel to the bolt 40 is fixed.

이와 같은 구성에 따라, 종래의 행거 브라켓과 비교하여 본 발명의 행거브라켓의 효과를 설명하면 다음과 같다.According to such a configuration, the effect of the hanger bracket of the present invention as compared to the conventional hanger bracket is as follows.

도 3는 본 발명과 종래의 행거브라켓의 결합상태와 외부하중이 걸리는 지점을 나타내는 비교개념도이고, 도 4은 본 발명과 종래의 행거브라켓을 차체 모델에 연결하여 얻은 고유진동수 값의 개선효과를 나타내는 비교해석도이다.Figure 3 is a comparison conceptual diagram showing the coupling state of the present invention and the conventional hanger bracket and the point that takes the external load, Figure 4 shows the effect of improving the natural frequency value obtained by connecting the present invention and the conventional hanger bracket to the vehicle body model Comparative analysis.

종래의 행거(20)와 연결된 차체연결브라켓(10)의 취부포인트에 걸리는 모멘트(M1)의 경우, 엔진의 진동에 의해 행거(20)에 걸리는 힘(F1)과 거리(L1)에 따라 모멘트를 고려해 볼 수 있다. In the case of the moment (M1) applied to the mounting point of the body connection bracket 10 connected to the conventional hanger 20, the moment according to the force (F1) and the distance (L1) applied to the hanger 20 by the vibration of the engine You can consider.

먼저, 상기 M1은 X축방향의 외부하중 입력점(50)의 힘(F1)과, 차체와 연결되는 차체연결브라켓(10)의 취부포인트에서 행거(20)와 연결되는 한쌍의 연결파이프의 중간지점까지의 거리(L1)를 곱한 값이다. 이때, 상기 F1은 차체연결브라켓(10)의 길이방향에 수직방향으로 작용한다.First, M1 is a force F1 of the external load input point 50 in the X-axis direction and a pair of connecting pipes connected to the hanger 20 at a mounting point of the body connection bracket 10 connected to the vehicle body. It is multiplied by the distance (L1) to the point. At this time, the F1 acts in the vertical direction to the longitudinal direction of the body connection bracket (10).

본 발명의 행거(20)와 연결된 차체연결브라켓(10)의 취부포인트에 걸리는 모멘트(M2)의 경우에도, 엔진의 진동에 의해 행거(20)에 걸리는 힘(F2)과 거리(L2)에 따라 모멘트를 고려해 볼 수 있다. Even in the case of the moment M2 applied to the mounting point of the body connection bracket 10 connected to the hanger 20 of the present invention, the force F2 and the distance L2 applied to the hanger 20 by the vibration of the engine The moment can be considered.

먼저, 상기 M2는 Y축방향의 외부하중 입력점(50)에서 좌우진동에 의한 힘(F2)과, 차체와 연결되는 차체연결브라켓(10)의 취부포인트에서 행거(20)와 연결되는 한쌍의 연결파이프의 중간지점까지의 거리(L2)를 곱한 값이다.First, the M2 is a pair of force (F2) by the left and right vibration at the external load input point 50 in the Y-axis direction and a pair of the hanger 20 connected to the hanger 20 at the mounting point of the body connection bracket 10 connected to the vehicle body It is multiplied by the distance (L2) to the intermediate point of the connecting pipe.

여기서, 본 발명에 따른 행거에 끼워지는 머플러연결브라켓(30)의 방향은 상기 차체연결브라켓(10)의 길이방향과 같으므로, 엔진에 의한 가진력에 대해 종래보다 더욱 효과적으로 진동을 흡수 및 차단할 수 있다.Here, the direction of the muffler connecting bracket 30 to be fitted to the hanger according to the present invention is the same as the longitudinal direction of the body connection bracket 10, it is possible to absorb and block the vibration more effectively than the conventional for the excitation force by the engine. .

또한, 종래의 차체연결브라켓(10)에 행거(20)를 횡방향으로 결합하던 것을 본 발명에서는 차체연결브라켓(10)에 행거(20)를 종방향으로 결합하여 차체연결브라켓(10)의 길이를 더욱 줄임으로써, 엔진의 가진력에 의한 차체연결브라켓(10)의 취부포인트에 걸리는 모멘트에 대해 더욱 안정적으로 견딜 수 있다.In addition, in the present invention, the hanger 20 is coupled to the vehicle body connecting bracket 10 in the lateral direction. In the present invention, the length of the body connecting bracket 10 is coupled to the body connecting bracket 10 in the longitudinal direction. By further reducing, it is possible to more stably withstand the moment applied to the mounting point of the body connection bracket 10 by the engine's excitation force.

그리고, 행거(20)와 차체연결브라켓(10)의 연결방식을 끼워맞춤방식에서 볼트(40)-너트(42)체결방식으로 바꿈으로써, 작업공수의 감소 및 조립성을 향상시키고, 전체적인 중량감소효과를 얻을 수 있다.And, by changing the connection method of the hanger 20 and the vehicle body connecting bracket 10 from the fitting method to the bolt 40-nut 42 fastening method, to reduce the workmanship and improve the assemblability, and reduce the overall weight The effect can be obtained.

이와 같이 변경한 차체연결브라켓(10)을 차체 모델에 연결하여 얻은 고유진동수 값은 364㎐(도 4(a) 종래기술 브라켓)에서 561㎐(도 4(b) 본 기술 브라켓)로 50%이상의 개선효과가 있음이 해석적으로 증명되었다.The natural frequency value obtained by connecting the modified body connection bracket 10 to the body model is 50% or more from 364 Hz (FIG. 4 (a) prior art bracket) to 561 Hz (FIG. 4 (b) the present technical bracket). The improvement has been proved analytically.

이상에서 본 바와 같이, 본 발명에 따른 자동차용 배기계통의 행거브라켓의 결합구조에 의하면, 종래의 차체연결브라켓보다의 길이를 줄이고, 차체연결브라켓 에 행거를 횡방향에서 종방향으로 바꿈으로써, 차체연결브라켓의 취부포인트에 걸리는 모멘트를 감소하여 상기 브라켓의 강성을 증대시키고, 행거에 고정되는 머플러연결브라켓의 방향을 상기 차체연결브라켓의 결합방향과 평행하게 하여 엔진의 가진력를 효과적으로 차단할 수 있다.As described above, according to the coupling structure of the hanger bracket of the vehicle exhaust system according to the present invention, by reducing the length than the conventional body connecting bracket, by changing the hanger to the body connecting bracket from the transverse direction to the longitudinal direction, By reducing the moment applied to the mounting point of the connecting bracket to increase the rigidity of the bracket, the direction of the muffler connecting bracket fixed to the hanger in parallel with the coupling direction of the body connection bracket can effectively block the engine's excitation force.

또한, 이와 같은 방으로 변경한 브라켓에 의해, 전체적인 중량 감소 및 볼트-너트 체결방식에 의한 조립성이 향상된다.In addition, by the bracket changed into such a room, the overall weight reduction and the assembly by the bolt-nut fastening method are improved.

Claims (2)

자동차의 배기계통의 부품을 바닥패널에 연결하여 고정케 하는 자동차용 배기계통의 행거브라켓에 있어서,In the hanger bracket of the automobile exhaust system to connect the parts of the exhaust system of the car to the floor panel to fix it, 후면에 고정홀이 형성된 차체연결브라켓과;A body connection bracket having a fixing hole formed at a rear side thereof; 상기 차체연결브라켓의 후면에 결합되며, 상하부에 제1 및 제2결합홀이 상기 차체연결브라켓의 길이방향으로 관통형성된 행거와;A hanger coupled to a rear surface of the vehicle body connecting bracket and having first and second coupling holes penetrated in a longitudinal direction of the body connecting bracket at upper and lower parts thereof; 상기 고정홀과 제1결합홀을 관통하여 상기 차체연결브라켓 및 행거를 결합하는 한쌍의 볼트와 너트를 포함하여 구성된 것을 특징으로 하는 자동차용 배기계통의 행거브라켓의 결합구조.The coupling structure of the hanger bracket of the vehicle exhaust system characterized in that it comprises a pair of bolts and nuts for coupling the body connection bracket and the hanger through the fixing hole and the first coupling hole. 청구항 1 에 있어서, 상기 행거의 제1 및 제2결합홀은 평행하게 형성되고, 상기 제2결합홀에 상기 차체연결브라켓의 길이방향으로 머플러연결브라켓이 끼움결합된 것을 특징으로 하는 자동차용 배기계통의 행거브라켓의 결합구조.The exhaust system for an automobile according to claim 1, wherein the first and second coupling holes of the hanger are formed in parallel, and the muffler connection bracket is fitted to the second coupling hole in the longitudinal direction of the body connection bracket. Of hanger brackets.
KR1020040096660A 2004-11-24 2004-11-24 Joint structure of the exhaust system hanger bracket for vehicle KR100580030B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109094357A (en) * 2018-07-23 2018-12-28 北京长城华冠汽车科技股份有限公司 The installation method that exhaust hanging, automobile exhaust pipe hangar system and exhaust are hung
KR20200031381A (en) * 2018-09-14 2020-03-24 현대자동차주식회사 Hanger for muffler, bracket and operation methods thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109094357A (en) * 2018-07-23 2018-12-28 北京长城华冠汽车科技股份有限公司 The installation method that exhaust hanging, automobile exhaust pipe hangar system and exhaust are hung
KR20200031381A (en) * 2018-09-14 2020-03-24 현대자동차주식회사 Hanger for muffler, bracket and operation methods thereof
KR102529455B1 (en) 2018-09-14 2023-05-08 현대자동차주식회사 Silence mounting structure of vehicle and Operation method thereof

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