KR101000190B1 - Valve body cover - Google Patents

Valve body cover Download PDF

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Publication number
KR101000190B1
KR101000190B1 KR1020080089040A KR20080089040A KR101000190B1 KR 101000190 B1 KR101000190 B1 KR 101000190B1 KR 1020080089040 A KR1020080089040 A KR 1020080089040A KR 20080089040 A KR20080089040 A KR 20080089040A KR 101000190 B1 KR101000190 B1 KR 101000190B1
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KR
South Korea
Prior art keywords
valve body
body cover
natural frequency
box shape
noise
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KR1020080089040A
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Korean (ko)
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KR20100030207A (en
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이현구
전재영
김무석
허진욱
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현대자동차주식회사
기아자동차주식회사
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Priority to KR1020080089040A priority Critical patent/KR101000190B1/en
Publication of KR20100030207A publication Critical patent/KR20100030207A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
    • F16H61/0276—Elements specially adapted for hydraulic control units, e.g. valves
    • F16H2061/0279—Details of hydraulic valves, e.g. lands, ports, spools or springs

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

본 발명은 밸브바디커버의 고유진동수를 저감시켜 밸브바디커버의 진동과 소음을 효과적으로 줄여서 차량의 NVH 성능을 향상시키도록 한 밸브바디커버를 제공하기 위해, 일측면이 개구된 박스 형상을 이루고서 상기 일측면을 향한 바닥면에 박스 공간의 내부를 향해서 고유진동수를 저감시키는 다수개의 원형 비드가 돌출해서 형성된다.The present invention provides a valve body cover to reduce the natural frequency of the valve body cover to effectively reduce the vibration and noise of the valve body cover to improve the NVH performance of the vehicle, forming a box shape with one side open On the bottom face toward one side, a plurality of circular beads are formed protruding toward the inside of the box space to reduce the natural frequency.

밸브바디커버, 고유진동수, 비드, 플랜지 Valve body cover, natural frequency, bead, flange

Description

밸브바디커버{Valve body cover}Valve body cover {Valve body cover}

본 발명은 밸브바디커버에 관한 것으로, 특히 자동변속기에 사용되는 밸브바디의 커버에 관한 것이다.The present invention relates to a valve body cover, and more particularly, to a cover of a valve body used in an automatic transmission.

종래 차량에 사용되는 자동변속기에는 유압의 제어를 위해 유로를 전환하거나 혹은 유압을 조정하기 위한 밸브가 내장됨과 더불어 다수의 유로가 형성된 유압제어장치의 본체를 이루는 밸브바디를 구비하고, 이 밸브바디의 상부에서 밸브바디커버가 체결되어 밸브바디를 보호하게 된다.An automatic transmission used in a conventional vehicle includes a valve body for forming a main body of a hydraulic control device in which a plurality of flow paths are formed and a valve for switching a flow path or adjusting a hydraulic pressure for hydraulic control is provided. The valve body cover is fastened at the top to protect the valve body.

도 1에는 상기와 같은 종래의 밸브바디커버가 도시되어 있는 바, 밸브바디커버(1)는 대체로 직사각 박스 형상을 이루고서 일측면이 개구되고, 상기 개구된 면의 가장자리를 따라서 밸브바디커버에 대해 수직한 방향으로 플랜지(1a)가 형성되며, 상기 플랜지(1a)에는 다수개의 볼트 체결홀(1b)이 소정 간격을 두고 형성되어 있다.1 shows a conventional valve body cover as described above, the valve body cover 1 is formed in a generally rectangular box shape, one side of which is opened, and the valve body cover is formed along the edge of the opened surface. A flange 1a is formed in a vertical direction, and a plurality of bolt fastening holes 1b are formed at a predetermined interval in the flange 1a.

그리고 상기 밸브바디커버(1)에는 내측을 향해 돌출한 대체로 넓은 면적을 가지는 다수개의 비드(2)가 형성되어 있다.The valve body cover 1 is formed with a plurality of beads 2 having a generally large area projecting inward.

상기와 같은 밸브바디커버(1)가 자동변속기의 내부에 장착된 상태에서 자동 변속기가 구동할 때에 자동변속기의 유성기어장치에서 발생하는 진동이 밸브바디커버를 가진하게 되고, 상기 진동의 가진 주파수가 밸브바디커버의 고유주파수와 근접하거나 일치하게 되면 밸브바디커버의 진동이 커져서 소음을 방사시키게 된다.When the automatic transmission is driven while the valve body cover 1 is mounted inside the automatic transmission, the vibration generated by the planetary gear device of the automatic transmission has the valve body cover, and the excitation frequency of the vibration If the natural frequency of the valve body cover is close to or coincident with the vibration of the valve body cover, the noise is radiated.

특히 밸브바디커버에 가해지는 진동의 주파수가 400Hz에 근접하게 되면 밸브바디커버가 공진을 일으켜서 소음이 커지게 되는 결점이 있었다.In particular, when the frequency of the vibration applied to the valve body cover is close to 400Hz, the valve body cover is resonant and there is a defect that the noise increases.

이에 본 발명은 상기한 사정을 감안하여 안출된 것으로, 밸브바디커버의 고유진동수를 저감시켜 밸브바디커버의 진동과 소음을 효과적으로 줄여서 차량의 NVH 성능을 향상시키도록 한 밸브바디커버를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above-described circumstances, and provides a valve body cover which improves the NVH performance of the vehicle by effectively reducing the vibration and noise of the valve body cover by reducing the natural frequency of the valve body cover. There is this.

상기와 같은 목적을 달성하기 위한 본 발명은, 일측면이 개구된 박스 형상을 이루고서 상기 일측면을 향한 바닥면에 박스 공간의 내부를 향해서 고유진동수를 저감시키는 다수개의 원형 비드가 돌출해서 형성된다.According to the present invention for achieving the above object, a plurality of circular beads are formed protruding to form a box shape with one side opened to reduce the natural frequency toward the inside of the box space on the bottom face toward the one side. .

본 발명에 따른 밸브바디커버에 의하면, 일측면이 개구된 직사각 박스 형상을 이루는 밸브바디커버의 개구부를 향한 바닥면에 다수개의 돌출한 원형의 비드가 형성되어, 밸브바디커버의 고유진동수가 낮아져서 밸브바디커버에 진동이 가해져도 밸브바디커버의 진폭과 소음이 낮아진 고유진동수에 의해 효과적으로 저감되어 차량의 NVH 성능이 개선되는 등의 효과가 있다. According to the valve body cover according to the present invention, a plurality of protruding circular bead is formed on the bottom surface facing the opening of the valve body cover having a rectangular box shape with one side open, the natural frequency of the valve body cover is lowered Even if vibration is applied to the body cover, the valve body cover is effectively reduced by the natural frequency with low amplitude and noise, thereby improving the NVH performance of the vehicle.

이하 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail with reference to the accompanying drawings.

도 2에는 본 발명에 따른 밸브바디커버가 사시도로 도시되어 있는 바, 즉 밸브바디커버(11)는 두께가 얇은 플레이트로 일측면이 개구된 직사각 박스 형상을 이루도록 사출로 성형된다.2 is a perspective view of the valve body cover according to the present invention, that is, the valve body cover 11 is molded by injection to form a rectangular box shape in which one side is opened in a thin plate.

상기 밸브바디커버(11)의 개구된 일측면의 가장자리를 따라서 밸브바디커버(11)에 대해 수직한 방향으로 플랜지(11a)가 절곡되어 일체로 성형된다.The flange 11a is bent in a direction perpendicular to the valve body cover 11 along the edge of one open side of the valve body cover 11 to be integrally formed.

상기 플랜지(11a)에는 그 길이방향을 따라서 밸브바디와 체결하기 위한 다수개의 볼트 체결홀(11b)이 관통해서 형성된다.The flange 11a is formed by penetrating a plurality of bolt fastening holes 11b for fastening with the valve body along its longitudinal direction.

그리고 상기 밸브바디커버의 개구된 일측면을 향한 바닥면(11c)에는 다수개의 원형 비드(12)가 박스의 내측을 향해 돌출하도록 형성된다.In addition, a plurality of circular beads 12 are formed on the bottom surface 11c facing the opened side of the valve body cover to protrude toward the inside of the box.

상기와 같이 다수개의 비드(12)를 밸브바디커버에 형성시키면 밸브바디커버의 고유진동수가 낮은 주파수로 저감된다.When the plurality of beads 12 are formed in the valve body cover as described above, the natural frequency of the valve body cover is reduced to a low frequency.

이와 같이 고유진동수가 저감된 밸브바디커버를 밸브바디에 장착할 상태에서 자동변속기 내부의 유성기어장치의 구동에 따라 발생하는 진동이 밸브바디커버에 전달되어 밸브바디커버를 가진할 때에 그 가진 주파수가 고유진동수와 일치하거나 혹은 근접할 경우에 밸브바디커버의 진폭 및 소음이 커지게 된다.Thus, when the valve body cover with reduced natural frequency is mounted on the valve body, the vibration generated by the planetary gear device inside the automatic transmission is transmitted to the valve body cover, and the frequency of excitation when the valve body cover is held If the frequency is close to or close to the natural frequency, the amplitude and noise of the valve body cover will increase.

그러나 밸브바디커버의 운동량은 저감된 고유진동수에 비례하여 낮아지므로 종래에 비해 밸브바디커버의 진폭 및 소음도 그만큼 저감되게 되고, 실제로 차량에 적용하여 실험한 결과 도 3과 도 4에 각각 도시한 바와 같이 5db 내지 10db 정도의 소음저감효과를 얻을 수 있었고, 그 결과 차량의 NVH 성능이 향상되게 된다. However, since the momentum of the valve body cover is lowered in proportion to the reduced natural frequency, the amplitude and noise of the valve body cover are reduced by that compared with the conventional ones. As a result of experiments applied to the vehicle, as shown in FIGS. 3 and 4, respectively. The noise reduction effect of 5db to 10db was obtained, and as a result, the NVH performance of the vehicle was improved.

도 1은 종래 기술에 따른 밸브바디커버의 사시도,1 is a perspective view of a valve body cover according to the prior art,

도 2는 본 발명에 따른 밸브바디커버의 사시도,2 is a perspective view of a valve body cover according to the present invention;

도 3과 도 4는 각각 본 발명에 따른 밸브바디커버와 종래 기술에 따른 밸브바디커버의 입력 샤프트 회전수에 대한 소음의 비교 그래프이다.3 and 4 is a comparison graph of the noise for the input shaft rotational speed of the valve body cover according to the present invention and the valve body cover according to the prior art, respectively.

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

11-밸브바디커버 12-비드11-valve body cover 12-bead

Claims (4)

자동변속기의 밸브바디에 장착되는 밸브바디커버에 있어서, In the valve body cover mounted on the valve body of the automatic transmission, 상기 밸브바디커버는 개구된 박스 형상인 일측면의 가장자리를 따라서 절곡된 플랜지를 갖추고, 상기 일측면을 향한 바닥면에 고유진동수를 저감시키도록 상기 박스 공간의 내부를 향해서 돌출하여 형성된 다수개의 원형 비드를 갖춘 것을 특징으로 하는 밸브바디커버. The valve body cover has a flange bent along an edge of one side of an open box shape, and a plurality of circular beads protruding toward the inside of the box space to reduce the natural frequency on the bottom face toward the one side. Valve body cover comprising a. 삭제delete 청구항 1에 있어서, 상기 박스 형상이 직사각 박스 형상인 것을 특징으로 하는 밸브바디커버. The valve body cover according to claim 1, wherein the box shape is a rectangular box shape. 삭제delete
KR1020080089040A 2008-09-10 2008-09-10 Valve body cover KR101000190B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060150942A1 (en) * 2004-12-22 2006-07-13 Shin Bo S Timing cover for engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060150942A1 (en) * 2004-12-22 2006-07-13 Shin Bo S Timing cover for engine

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