KR20060031012A - Structure of protective heat cover - Google Patents

Structure of protective heat cover Download PDF

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Publication number
KR20060031012A
KR20060031012A KR1020040079884A KR20040079884A KR20060031012A KR 20060031012 A KR20060031012 A KR 20060031012A KR 1020040079884 A KR1020040079884 A KR 1020040079884A KR 20040079884 A KR20040079884 A KR 20040079884A KR 20060031012 A KR20060031012 A KR 20060031012A
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KR
South Korea
Prior art keywords
cover
sensor
cylinder block
inner cover
heater
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KR1020040079884A
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Korean (ko)
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KR100633956B1 (en
Inventor
김택현
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현대자동차주식회사
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Priority to KR1020040079884A priority Critical patent/KR100633956B1/en
Publication of KR20060031012A publication Critical patent/KR20060031012A/en
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Publication of KR100633956B1 publication Critical patent/KR100633956B1/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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation
    • 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
    • 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
    • F01N13/14—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 having thermal insulation
    • 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
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F01N13/1822—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration for fixing exhaust pipes or devices to vehicle body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation

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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)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Exhaust Silencers (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

본 발명은 열해 방지용 히터 커버 구조에 관한 것으로, 일측이 개방된 형상을 하고서 내측 커버와 외측 커버의 2중 구조로 이루어져 센서와 함께 엔진의 실린더 블록에 체결되어 센서를 보호함과 더불어 상기 실린더 블록에 형성된 돌기부에 걸려져 지지되도록 상기 내측 커버에 오목홈이 형성되어, 센서를 배기 매니폴더와 같은 열원으로부터 발생하는 열에 의해 손상되지 않도록 적절히 보호할 수 있고, 센서 자체에서 발생하는 열과 커버 자체의 열을 외부로 적절히 방출시켜 원활한 냉각작용이 이루어지게 하면서 구조도 간단하여 장착 작업성 및 제작성을 향상시켜 원가와 중량 절감을 도모할 수 있도록 된 것이다.The present invention relates to a heater cover structure for preventing thermal damage, and having a double-sided structure of an inner cover and an outer cover having an open shape on one side and being coupled to a cylinder block of an engine together with a sensor to protect the sensor and to the cylinder block. Concave grooves are formed in the inner cover to be caught and supported by the formed protrusions, so that the sensor can be adequately protected from being damaged by heat generated from a heat source such as an exhaust manifold, and the heat generated from the sensor itself and the heat of the cover itself are prevented. By properly discharging to the outside to achieve a smooth cooling action, the structure is also simple, it is possible to reduce the cost and weight by improving the mounting workability and manufacturability.

Description

열해 방지용 히터 커버 구조{Structure of protective heat cover}Heater cover structure to prevent thermal damage

도 1은 종래 기술에 따른 히터 커버가 장착된 상태의 사시도이고,1 is a perspective view of a state in which a heater cover according to the prior art is mounted;

도 2는 본 발명에 따른 히터 커버가 장착된 상태의 사시도,2 is a perspective view of a state in which a heater cover according to the present invention is mounted;

도 3은 도 2의 정면 사시도,3 is a front perspective view of FIG. 2;

도 4는 본 발명에 따른 히터 커버의 정면도이다.4 is a front view of the heater cover according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1-실린더 블록 2-센서1-cylinder block 2-sensor

3-히터 커버 4-히터 커버3-heater cover 4-heater cover

4a-오목홈 4b-내측 커버4a-concave groove 4b-inner cover

4c-외측 커버 4d-걸림부4c-outer cover 4d-lock

본 발명은 열해 방지용 히터 커버에 관한 것으로, 특히 배기 매니폴더로부터 발생되는 열에 의해 배기 매니폴더 주위에 장착되는 각종 센서들이 손상되지 않도록 방지하는 열해 방지용 히터 커버 구조에 관한 것이다.The present invention relates to a heater cover for preventing thermal damage, and more particularly, to a heater cover structure for preventing thermal damage that prevents various sensors mounted around the exhaust manifold from being damaged by heat generated from the exhaust manifold.

현재 자동차의 엔진은 전자제어 기술이 발전함에 따라 각종 센서들이 장착되 고 있는 데, 엔진에서 주요 열원이 되는 배기 매니폴더 부근에도 불가피하게 각종 센서들이 장착되고 있다.Currently, engines of automobiles are equipped with various sensors due to the development of electronic control technology. Various sensors are inevitably installed near the exhaust manifold, which is the main heat source of the engine.

상기와 같이 배기 매니폴더 주위에 각종 센서들을 장착할 때에 배기 매니폴더에서 발생하는 열로 인해 센서들이 손상되지 않도록 보호하는 히터 커버가 배기 매니폴더 주위에 장착되어 사용되고 있다.As described above, a heater cover that protects the sensors from being damaged by heat generated in the exhaust manifold when the various sensors are mounted around the exhaust manifold is mounted and used around the exhaust manifold.

도 1에는 상기와 같은 종래의 히터 커버가 엔진에 장착된 상태를 도시한 것인 바, 배기 매니폴더와 인접한 엔진의 실린더 블록(1)에 센서(2)가 장착되어 있고, 이 센서(2)를 감싸는 형상으로 제작된 히터 커버(3)가 실린더 블록(1)에 체결되어 있다.1 shows a state in which a conventional heater cover as described above is mounted on an engine, and a sensor 2 is mounted on a cylinder block 1 of an engine adjacent to an exhaust manifold, and this sensor 2 The heater cover 3 produced in the shape of enclosing is fastened to the cylinder block 1.

즉, 상기 실린더 블록(1)에는 상기 센서(2)가 장착되는 부위를 중심으로 전후 혹은 좌우로 소정 간격을 두고 2개의 보스(1a)가 형성되어 있고, 상기 2개의 보스(1a)에 상기 히터 커버(3)가 볼트로 체결되어 있다.That is, two bosses 1a are formed in the cylinder block 1 at predetermined intervals back and forth or left and right around the site where the sensor 2 is mounted, and the heaters are formed on the two bosses 1a. The cover 3 is fastened with a bolt.

상기 히터 커버(3)가 상기 센서(2)를 감싸는 형태로 장착할 때에 상기 센서(2)로부터 연장된 와이어와 간섭되지 않도록 하기 위해 상기 히터 커버(3)에는 그 한쪽 측면으로부터 대략 중앙부위까지 절개홈(3a)이 형성되어 있다.In order to prevent the heater cover 3 from interfering with a wire extending from the sensor 2 when the heater cover 3 is mounted in a form surrounding the sensor 2, the heater cover 3 is incised from one side to approximately a central portion thereof. The groove 3a is formed.

그리고, 상기 히터 커버(3)는 상기 절개홈(3a)이 형성된 내측 커버(3b)와 이 내측 커버(3b)보다 폭은 크지만 길이는 상대적으로 작게 형성되어 내측 커버(3b)와 결합된 외측 커버(3c)의 2중 구조로 되어 있다.The heater cover 3 has an inner cover 3b having the cutout 3a formed therein and a width larger than that of the inner cover 3b but relatively small in length, and coupled to the inner cover 3b. The cover 3c has a double structure.

그런데, 상기와 같은 히터 커버(3)가 센서(2)를 감싸는 형태로 장착되는 경우에 엔진의 배기 매니폴더와 같은 열원으로부터 발생되는 열에 의해 센서(2)가 직 접 손상을 입는 것을 어느 정도 방지해 줄 수 있지만 상기 내측 커버(3b)는 센서(2)를 거의 감싸는 형상을 하고 있으므로, 엔진의 장시간 운전시에 센서(2)에서 발생되는 열을 외부로 적절히 방출시키지 못해서 열해 방지 효과가 미흡하다고 하는 결점이 있었다.By the way, when the heater cover 3 is mounted in such a manner as to surround the sensor 2, the sensor 2 may be directly prevented from being directly damaged by heat generated from a heat source such as an exhaust manifold of the engine. However, since the inner cover 3b almost surrounds the sensor 2, the inner cover 3b does not properly discharge heat generated by the sensor 2 to the outside during long periods of operation of the engine, and thus, the thermal cover is insufficient. There was a flaw.

또한, 히터 커버(3)를 엔진의 실린더 블록(1a)에 장착하기 위해서는 실린더 블록(1a)에 2개의 보스를 형성시켜야 하므로, 이로 인해 엔진의 가공비 상승과 중량 증가를 초래하는 결점이 있었다.In addition, in order to mount the heater cover 3 to the cylinder block 1a of the engine, two bosses must be formed in the cylinder block 1a, which causes drawbacks that increase the processing cost and increase the weight of the engine.

이에 본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 센서를 배기 매니폴더와 같은 열원으로부터 발생하는 열에 의해 손상되지 않도록 적절히 보호할 수 있고, 센서 자체에서 발생하는 열과 커버 자체의 열을 외부로 적절히 방출시켜 원활한 냉각작용이 이루어지게 하면서 구조도 간단하여 장착 작업성 및 제작성을 향상시켜 원가와 중량 절감을 도모할 수 있도록 된 열해 방지용 히터 커버구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, it is possible to adequately protect the sensor from being damaged by heat generated from a heat source such as exhaust manifold, the heat generated from the sensor itself and the heat of the cover itself The purpose of the present invention is to provide a heater cover structure for preventing thermal damage that can be reduced in cost and weight by improving the workability and manufacturability of the product by simplifying the structure while allowing a smooth cooling operation to be performed properly.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 열해 방지용 히터 커버 구조는 내측 커버와 외측 커버의 2중 구조로 이루어져 센서와 함께 엔진의 실린더 블록에 체결되어 센서를 보호함과 더불어 상기 실린더 블록에 형성된 돌기부에 걸려져 지지되도록 상기 내측 커버에 오목홈이 형성되어 있다.Heat cover for preventing heat damage according to the present invention for achieving the above object consists of a double structure of the inner cover and the outer cover is fastened to the cylinder block of the engine together with the sensor to protect the sensor and formed in the cylinder block Concave grooves are formed in the inner cover to be caught and supported by the projections.

바람직하기로는, 상기 내측 커버 및 외측 커버의 일측은 개방된 형상으로 형 성된 것을 특징으로 한다.Preferably, one side of the inner cover and the outer cover is characterized in that it is formed in an open shape.

또한, 상기 내측 커버와 외측 커버 사이에는 공기막을 형성하는 갭이 형성된 것을 특징으로 한다.In addition, a gap is formed between the inner cover and the outer cover to form an air film.

그리고, 상기 내측 커버에는 상기 센서로부터 연장되어 나오는 와이어를 걸어서 지지하기 위한 걸림부가 형성된 것을 특징으로 한다.And, the inner cover is characterized in that the engaging portion for supporting the walking wire extending from the sensor is formed.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 히터 커버가 장착된 상태의 사시도이고, 도 3은 도 2의 정면 사시도이며, 도 4는 본 발명에 따른 히터 커버의 정면도인 바, 즉 배기 매니폴더와 인접한 엔진의 실린더 블록(1)에 장착된 센서(2)를 배기 매니폴더와 같은 열원에서 발생되는 열로부터 보호하기 위해 히터 커버(4)가 장착되어 있다.Figure 2 is a perspective view of the heater cover according to the present invention is mounted, Figure 3 is a front perspective view of Figure 2, Figure 4 is a front view of the heater cover according to the present invention, that is, the cylinder of the engine adjacent to the exhaust manifold A heater cover 4 is mounted to protect the sensor 2 mounted on the block 1 from heat generated from a heat source such as an exhaust manifold.

즉, 상기 센서(2)를 실린더 블록(1)에 장착하기 위해 실린더 블록(1)에는 보스(1a)가 형성되어 있고, 이 보스(1a)에 상기 히터 커버(4)가 볼트를 매개로 함께 장착되어, 히터 커버(4)를 실린더 블록(1)에 장착하기 위한 별도의 보스를 실린더 블록(1)에 형성시켜 줄 필요가 없으므로, 엔진의 가공비와 중량의 저하를 도모할 수 있을 뿐만 아니라 작업성도 향상되게 된다.That is, in order to mount the sensor 2 to the cylinder block 1, a boss 1a is formed in the cylinder block 1, and the heater cover 4 is together with the boss 1a through a bolt. Since it is not necessary to form a separate boss in the cylinder block 1 for attaching the heater cover 4 to the cylinder block 1, it is possible not only to reduce the processing cost and weight of the engine but also work The castle will also be improved.

그리고, 상기와 같이 히터 커버(4)가 단지 하나의 보스(1a)에만 체결되어 지지될 경우에는 히터 커버(4)의 체결력이 약화되어 히터 커버(4)가 제위치를 유지하지 못하고 흔들리거나 하여 이탈될 염려가 있는 바, 이를 방지하기 위해 상기 히터 커버(4)에는 몸체의 안쪽 방향으로 만입된 오목홈(4a)이 형성되고, 상기 실린더 블록(1)에는 상기 오목홈(4a)에 끼워질 수 있는 돌기부(1b)가 형성되어, 상기 돌기부 (1b)와 상기 오목홈(4a)의 상호 작용으로 상기 히터 커버(4)가 실린더 블록(1)으로부터 이탈될 염려가 없게 된다.In addition, when the heater cover 4 is fastened and supported only by one boss 1a as described above, the fastening force of the heater cover 4 is weakened, and the heater cover 4 does not maintain its position and shakes. To prevent this, the heater cover 4 is formed with a recessed groove 4a recessed in the inward direction of the body, and the cylinder block 1 may be fitted into the recessed groove 4a to prevent this. Protruding portion 1b is formed, so that the heater cover 4 is free from the cylinder block 1 by the interaction between the protruding portion 1b and the concave groove 4a.

또한, 상기 히터 커버(4)는 상기 보스(1a)에 센서와 함께 볼트로 체결되는 내측 커버(4b)와, 이 내측 커버(4b)보다 폭 방향으로는 약간 크게 형성되는 반면에 길이 방향으로는 상대적으로 작게 형성되어 상기 내측 커버(4b)와 예컨대 다수 부위에서 스폿 용접으로 결합되는 외측 커버(4c)를 갖추고 있다.In addition, the heater cover 4 has an inner cover 4b which is bolted together with a sensor to the boss 1a, and is formed slightly larger in the width direction than the inner cover 4b, while in the longitudinal direction. It is relatively small and has an inner cover 4b and an outer cover 4c, for example, which is joined by spot welding in many places.

상기 내측 커버(4b)와 외측 커버(4c)는 상기 센서(2)를 감싸는 형태로 형성되지 않고 도 3에 자세히 도시된 바와 같이 측방향이 개방된 형태로 형성되어, 센서(2)에서 발생되는 열이나 커버 자체에서 발생되는 열을 외부로 용이하게 방출시켜 센서(2)의 냉각작용을 도모할 수 있게 된다.The inner cover 4b and the outer cover 4c are not formed to surround the sensor 2, but are formed in a form in which the lateral direction is opened as shown in detail in FIG. The heat generated from the heat or the cover itself can be easily released to the outside to achieve a cooling action of the sensor 2.

킬 수 있게 된다.You can kill.

또한, 도 4에 자세히 도시된 바와 같이 상기 내측 커버(4b)와 외측 커버(4c) 사이에는 대략 2mm 정도의 갭(a)이 형성되면서 이 갭이 공기막을 형성하게 되므로, 커버의 2중 구조에다가 상기 공기막의 3중구조 열원으로부터의 열이 센서(2)로 잘 전달되지 않도록 차단하게 되므로, 센서의 열차단 효과가 향상되게 된다.In addition, as shown in detail in FIG. 4, a gap (a) of about 2 mm is formed between the inner cover 4b and the outer cover 4c, and this gap forms an air film. Since the heat from the triple structure heat source of the air film is blocked to be transmitted to the sensor 2 well, the thermal blocking effect of the sensor is improved.

한편, 도 5에 도시된 바와 같이 상기 내측 커버(4b)에는 상기 센서(2)로부터 연장되어 나오는 와이어(2a)를 걸어서 지지하기 위해 대략 ??자 형상을 이루는 걸림부(4d)가 형성되어, 상기 와이어(2a)를 히터 커버에 걸어서 안정되게 지지시켜 줄 수 있게 된다.Meanwhile, as shown in FIG. 5, the inner cover 4b is provided with a locking portion 4d having an approximately? -Shape to support the wire 2a extending from the sensor 2 by walking. The wire 2a can be hung on the heater cover to be stably supported.

이상 설명한 바와 같이 본 발명에 따른 열해 방지용 히터 커버 구조에 의하면, 구조가 간단하면서도 열차단 및 열방출 성능이 우수하여 센서를 열해로부터 안전하게 보호할 수 있게 되고, 히터 커버를 장착하기 위한 별도의 보스를 실린더 블록에 형성시킬 필요가 없으므로 엔진의 가공비와 중량의 저하를 도모할 수 있으며, 작업성도 향상되게 되는 등의 효과가 있다. As described above, according to the heater cover structure for preventing thermal damage according to the present invention, the structure is simple, and excellent thermal cut-off and heat dissipation performance, so that the sensor can be safely protected from thermal damage, and a separate boss for mounting the heater cover Since it does not need to be formed in a cylinder block, the processing cost and weight of an engine can be reduced, and workability also improves.

Claims (4)

내측 커버와 외측 커버의 2중 구조로 이루어져 센서와 함께 엔진의 실린더 블록에 체결되어 센서를 보호함과 더불어 상기 실린더 블록에 형성된 돌기부에 걸려져 지지되도록 상기 내측 커버에 오목홈이 형성된 열해 방지용 히터 커버 구조.Consists of a double structure of the inner cover and the outer cover is fastened to the cylinder block of the engine together with the sensor to protect the sensor, and the heat cover for preventing heat damage formed with a concave groove in the inner cover to be caught and supported by the projection formed on the cylinder block rescue. 제 1항에 있어서, 상기 내측 커버 및 외측 커버의 일측은 개방된 형상으로 형성된 것을 특징으로 하는 열해 방지용 히터 커버 구조.The heater cover structure of claim 1, wherein one side of the inner cover and the outer cover is formed in an open shape. 제 1항에 있어서, 상기 내측 커버와 외측 커버 사이에는 공기막을 형성하는 갭이 형성된 것을 특징으로 하는 열해 방지용 히터 커버 구조.The heater cover structure of claim 1, wherein a gap is formed between the inner cover and the outer cover to form an air film. 제 1항에 있어서, 상기 내측 커버에는 상기 센서로부터 연장되어 나오는 와이어를 걸어서 지지하기 위한 걸림부가 형성된 것을 특징으로 하는 열해 방지용 히터 커버.The heater cover for preventing thermal damages according to claim 1, wherein the inner cover is provided with a catching part for supporting a wire extending from the sensor.
KR1020040079884A 2004-10-07 2004-10-07 Structure of protective heat cover KR100633956B1 (en)

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Publication number Priority date Publication date Assignee Title
KR100645561B1 (en) * 2004-12-23 2006-11-14 현대자동차주식회사 Wire protecting apparatus

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100645561B1 (en) * 2004-12-23 2006-11-14 현대자동차주식회사 Wire protecting apparatus

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