WO2019076094A1 - Noise reduction device applicable to air intake ducting of automobile, air intake ducting of automobile, automobile, and noise reduction method - Google Patents

Noise reduction device applicable to air intake ducting of automobile, air intake ducting of automobile, automobile, and noise reduction method Download PDF

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Publication number
WO2019076094A1
WO2019076094A1 PCT/CN2018/095129 CN2018095129W WO2019076094A1 WO 2019076094 A1 WO2019076094 A1 WO 2019076094A1 CN 2018095129 W CN2018095129 W CN 2018095129W WO 2019076094 A1 WO2019076094 A1 WO 2019076094A1
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Prior art keywords
noise reduction
automobile
intake duct
central tube
noise
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PCT/CN2018/095129
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French (fr)
Chinese (zh)
Inventor
齐昀
赵明
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上海大创汽车技术有限公司
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Publication of WO2019076094A1 publication Critical patent/WO2019076094A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments

Definitions

  • the invention relates to a noise reduction device, an automobile intake pipe, an automobile and a noise reduction method applied to an intake pipe of an automobile.
  • Broadband silencers are one of the most effective acoustic components. Generally it is a monolithic design with no splits. Vehicle intake noise is different for different models, different engines, different superchargers and different calibration stages. According to different models and different vehicle development stages, the vehicle tuning test of the broadband silencer is carried out several times. It is necessary to carry out multiple rounds of test verification on the integral muffler sample, and the design change of the integral muffler is invested in a large amount. Human and material resources, long development cycle and high development cost.
  • Patent CN 204113389 U discloses an air intake muffler which can effectively reduce medium and high frequency and wide frequency intake noise. As shown in FIG. 1, it is composed of three parts: outer casing 1, perforated pipe 2 and outer casing 3. Wherein, the outer casing 1 is provided with a limiting slot, the perforated tube 2 is axially inserted into the outer casing 1 and is limited by the limiting slot, the outer casing 3 is fixedly connected to the outer casing 1, and a plurality of diameters are used between the perforating pipe 2 and the outer casing 1.
  • the partition is separated, and a gap of 1.5 to 2.5 mm is left between the partition and the outer casing 1 so that the cavities on both sides of the partition communicate with each other, and a plurality of holes are formed in the surface of the perforated pipe 2.
  • the muffler replacement disclosed in this patent document requires an overall replacement of the perforated pipe 2, which increases the cost.
  • it is necessary to eliminate the noise of a certain frequency it is necessary to precisely adjust the aperture size of the opening of the perforated pipe 2 at each link while continuously changing the perforated pipe 2. This makes it necessary to produce a variety of perforated tubes 2 to meet different noise cancellation requirements, not only further increase the processing cost, but also increase the noise cancellation debugging work time.
  • an object of the present invention is to provide a modular noise reduction device, an automobile intake duct, an automobile, and a noise reduction method applied to an intake duct of an automobile, so that the gas can pass through the noise reduction device, thereby eliminating noise.
  • the specific plan is as follows:
  • a noise reduction device for use in an intake duct of an automobile, comprising:
  • a central tube module is disposed in each of the chambers, and a through hole is formed in a wall of each of the central tube modules.
  • each of the central tube modules has the same outer contour size.
  • the hollow portion of the central tube module is circular, elliptical or rectangular in cross section perpendicular to the axial direction.
  • the cross-sectional shape of the through hole parallel to the axial direction is a rectangle, a circle, and/or a polygon.
  • a ring retaining ring is disposed at each end of each of the central tube modules; the lower casing and the upper casing are provided with slots at an inner wall of each of the chambers, and the central tube module The retaining rings at both ends are fixed in the slots.
  • the lower casing is provided with a sealing flap (15) between two adjacent chambers.
  • the upper casing and the lower casing are fastened by snapping, welding or bolting.
  • both ends of the noise reduction device are provided with a connecting pipe, and the connecting pipe is connected to the automobile intake pipe.
  • the connecting tube is fixed on the intake duct of the automobile by a flange connection, a clamp connection and/or a quick insertion structure.
  • the plurality of chambers have the same width in the axial direction.
  • an automotive intake duct comprising:
  • both ends of the noise reducer are connected to the intake duct body.
  • an automobile in a third aspect, includes a car air duct as described above.
  • a noise reduction method for an automobile intake duct which includes:
  • the noise reducer is coupled to the automotive intake duct by a connecting tube.
  • the noise reduction method further includes:
  • the noise reduction effect is optimal, and finally used for the noise reduction device of the automobile intake duct.
  • the noise reduction method further includes:
  • the center tube module of the noise reducer is replaced with the redesigned center tube module.
  • designing the central tube module includes determining a shape and an opening size of a through hole formed in a sidewall of the central tube module. It can be seen from the above embodiments that the present invention provides a noise reduction device capable of eliminating noise of an automobile intake duct, and adopts a modular structure including an upper and lower casing and one or more central pipe modules, which constitute different chambers, each cavity. The width of the chamber is the same, and the audio frequency is adjusted by replacing the center tube module. The gas flows through the intermediate pipe, and noise is eliminated by the resonance principle due to the groove or through hole on the wall surface of the noise reduction device and the cavity enclosed by the outer casing. One or more of the central tube modules can be replaced to cater for noise changes without the need to re-make the entire sample, effectively reducing production costs and noise reduction debugging time.
  • FIG. 1 is a schematic diagram of an intake silencer capable of effectively reducing medium and high frequency and wide frequency intake noise provided by the prior art
  • FIG. 2 is a perspective view of a noise reduction device according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of a noise reduction device in accordance with an embodiment of the present invention.
  • FIG. 4 is a schematic view showing the assembly of a noise reduction device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a single central tube module in a noise reduction device according to an embodiment of the present invention.
  • FIG. 6 is a schematic view showing the assembly of a noise reduction device according to another embodiment of the present invention.
  • FIG. 7 is a flow chart of an embodiment of a noise reduction method of the present invention.
  • FIG. 8 is a flow chart of a method for selecting a central tube module in an embodiment of the noise reduction method of the present invention.
  • FIG. 9 is a flow chart of designing a central tube module in accordance with an embodiment of the present invention.
  • the present invention provides a noise reduction device applied to an intake duct of an automobile. Both ends of the noise reduction device are connected to an intake duct of a vehicle, and the noise reduction device is provided with an upper casing 10 and a lower portion.
  • the casing 13, between the upper casing 10 and the lower casing 13, is provided with a row of chambers 16, 17, 18, 19 having the same width along the intake duct, and each chamber 16, 17, 18, 19 is inserted.
  • 2-4 shows a noise reduction device having four chambers according to an embodiment of the present invention. Correspondingly, each of the four chambers 16, 17, 18, 19 of the noise reduction device A central tube module 14 is inserted.
  • the central tube module 14 can be cylindrical, and a through hole 14a can be formed in a sidewall of each central tube module 14.
  • the shape of the through hole 14a on the central tube module 14 and the size of the opening can be determined according to the noise canceling requirement, and the central tube module 14 having the through hole 14a of the determined shape and the opening size is respectively inserted in each cavity.
  • the cross-sectional shape of the central tube module 14 may be a circular, elliptical or rectangular structure.
  • the opening area and shape of the through hole 14a formed in the sidewall of the center tube module 14 can be designed according to the requirements of noise reduction.
  • the cross-sectional shape of the through hole 14a can be rectangular, circular, or polygonal.
  • a ring-shaped strip-shaped through hole 14a is formed in the side wall of the center tube module 14.
  • FIG. 4 shows that the central tube modules 14 of the upper and lower housings 10, 13 are provided with through holes 14a of the same shape but different opening widths;
  • FIG. 6 shows the upper and lower housings.
  • Each central tube module 14 in the body is provided with through holes of different shapes and different densities.
  • the appropriate central tube modules can be combined into the housing according to the specific noise reduction requirements of different pipelines, and then the noise reduction effect detection is performed, and the central tube module combination with the best noise reduction effect is matched.
  • the upper and lower housings serve as the final noise reduction device.
  • a ring retaining ring 14b can be disposed at both ends of the central tube module 14. Accordingly, the lower casing 13 and the upper casing 10 are located on the inner wall of each chamber and may be provided with two slots 20. Thus, the retaining ring 14b at each end of the central tube module 14 can be inserted into the slot 20 to secure the central tube module 14 in the chambers 16, 17, 18, 19.
  • the height of each chamber may be set according to the requirements of noise reduction, and may be the same or different. For example, preferably, the height of each chamber distributed from one end to the other end of the noise reduction device is increased. Specifically, as shown in FIG. 3, the heights of the chamber 16, the chamber 17, the chamber 18, and the chamber 19 from left to right are gradually increased. Correspondingly, the width of the through hole opening of the central tube module 14 inside the chamber 16, the chamber 17, the chamber 18, and the chamber 19 can be gradually increased or decreased.
  • the lower casing 13 may be provided with a sealing flap 15 between two adjacent chambers. As shown in FIG.
  • the sealing flap 15 serves to isolate portions of the adjacent two chambers other than the central tube module 14 so that gas can only pass through the conduits within the central tube module 14. Further, after the upper casing 10 and the lower casing 13 are fastened together, each of the chambers 16, 17, 18, 19 is independent of each other.
  • the upper casing 10 and the lower casing 13 may be fixed together by means of snapping, welding or bolt fixing to ensure the sealing of the connection of the upper and lower casings, so that the internal gas is not exposed.
  • the connecting tube 11 may be disposed at both ends of the noise reducing device.
  • the connecting pipe 11 is placed on the intake duct of the automobile.
  • the connecting tube 11 can be fixed to the intake duct of the vehicle by a flange connection, a hoop connection and/or a quick-release structure.
  • a variety of connections are available for all types of superchargers or naturally aspirated connections.
  • due to the small size of the product it can also be directly applied to all possible pipeline sections before and after the supercharger.
  • the quick-connect structure is used to realize the connection between the noise reduction device and the intake pipe, the reverse buckle can be used to avoid the escape.
  • a sealing ring 12 may be disposed on the connecting pipe 11 at both ends of the noise reducing device.
  • the present invention also provides an automobile intake duct comprising an intake duct body and a noise reducer as described above, the two ends of the noise reducer being coupled to the intake duct body.
  • the present invention also provides an automobile comprising the automotive gas duct as described above.
  • the present invention also provides a noise reduction method for an automobile intake duct, the method comprising the following steps:
  • Step 101 setting the number of chambers between the upper casing and the lower casing in the noise reduction device to be applied to the automobile intake duct according to the noise reduction requirement of the automobile intake duct, and each of the The height of the chamber;
  • Step 102 Design, according to the noise reduction requirement, each central tube module to be placed in the chamber;
  • Step 103 placing the designed central tube module in the lower casing
  • Step 104 snapping the upper casing and the lower casing to assemble the noise reduction device
  • Step 105 Connect the noise reduction device to the automobile intake duct through a connecting pipe.
  • noise reduction method further includes the following steps:
  • Step 106 redesign the central tube module according to the changed noise reduction requirement when the noise reduction demand of the automobile intake duct changes;
  • Step 107 Replace the central tube module of the noise reduction device with the redesigned central tube module.
  • the noise reduction method can replace the one or more central tube modules to cater for the change of noise without re-creating the whole sample; so that the noise reduction device relatively replaces the interior without changing the outer casing.
  • the central tube module can eliminate the different noises, which effectively reduces the production cost and the time for noise reduction debugging.
  • the method of designing the central tube module includes:
  • Step 1021 Determine the shape and opening size of the through hole opened on the sidewall of the center tube module.
  • the method for selecting a central tube module in the noise reduction method comprises the following steps:
  • Step 201 Design at least two central tube module combinations for the automobile intake duct;
  • Step 202 For each of the central tube module combinations, obtain a noise reduction effect on the intake duct of the automobile when it is placed in the noise reduction device;
  • Step 203 Select a noise reduction device that is optimal for the noise reduction effect from the combination of the at least two central tube modules, and finally used for the intake duct of the automobile.
  • different central tube modules can be combined into the housing according to different automobile intake pipelines and different noise reduction requirements, and then the detection of the noise reduction effect is used to obtain the combination of different central tube module combinations.
  • the central tube module with relatively good noise effect is combined with the upper and lower casings as a noise reduction device, and finally used for the automobile intake pipe, so that the noise reduction effect can be relatively well accomplished to eliminate different noises, relatively flexible, and effective. Reduce production costs and commissioning time.

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

Abstract

A noise reduction device applicable to an air intake ducting of an automobile, an air intake ducting of an automobile, an automobile, and a noise reduction method. The noise reduction device is provided with an upper shell (10) and a lower shell (13); one or more cavities (16, 17, 18, 19) are provided between the upper shell (10) and the lower shell (13) along the air intake ducting; a separate central duct module (14) is placed in each of the cavities (16, 17, 18, 19); through holes (14a) are arranged on the sidewall of each central duct module (14); the through holes (14a) are designed into various specifications according to noise reduction requirements; the central duct modules (14) having through holes in corresponding shapes and opening areas are placed in different cavities (16, 17, 18, 19) according to the noise reduction requirements. The noise reduction device applicable to the air intake ducting of the automobile can cater to a noise change by replacing one or more central duct modules (14), without re-manufacturing an entire sample piece, thereby effectively reducing the production costs and shortening the time for noise reduction debugging.

Description

一种应用于汽车进气管道的降噪装置、汽车进气管道、汽车及降噪方法Noise reduction device for automobile intake pipe, automobile intake pipe, automobile and noise reduction method 技术领域Technical field
本发明涉及一种应用于汽车进气管道的降噪装置、汽车进气管道、汽车及降噪方法。The invention relates to a noise reduction device, an automobile intake pipe, an automobile and a noise reduction method applied to an intake pipe of an automobile.
背景技术Background technique
人们越来越重视驾驶过程中汽车噪声问题，愈发重视驾驶中的听觉感受。同时，汽车噪声污染对周边环境与行人也产生许多不良的影响，这要求汽车开发过程中着重关注汽车声学的改善。People pay more and more attention to the problem of car noise during driving, and pay more attention to the auditory feeling in driving. At the same time, car noise pollution has many adverse effects on the surrounding environment and pedestrians. This requires the car development process to focus on the improvement of car acoustics.
宽频消音器是效果非常好的声学元件之一。一般是整体式设计，没有进行拆分。不同的车型、不同的发动机、不同的增压器以及不同标定阶段，车辆进气噪音均不相同。根据不同的车型以及不同的车辆开发阶段对宽频消音器进行多次的整车调音试验，需要对整体式消音器样件进行多轮试验验证，而整体式消音器的设计变更要投入大量的人力物力，开发周期长，开发成本大。Broadband silencers are one of the most effective acoustic components. Generally it is a monolithic design with no splits. Vehicle intake noise is different for different models, different engines, different superchargers and different calibration stages. According to different models and different vehicle development stages, the vehicle tuning test of the broadband silencer is carried out several times. It is necessary to carry out multiple rounds of test verification on the integral muffler sample, and the design change of the integral muffler is invested in a large amount. Human and material resources, long development cycle and high development cost.
专利CN 204113389 U公开了一种能有效降低中高频、宽频进气噪声的进气消音器，如图1所示，由外壳1、穿孔管2和外壳3这三部分组成。其中，外壳1内部设有限位槽，穿孔管2沿轴向装入外壳1内并由限位槽限位，外壳3固定连接在外壳1上，穿孔管2与外壳1之间用多个径向隔板隔开，且隔板与外壳1间保留1.5～2.5mm的间隙，使隔板两侧的腔体相通，在穿孔管2的表面开设有若干孔。但是，该专利文献所公开的消音器更换需要整体更换穿孔管2，提高了成本。此外，如果需要对某频率的噪音进行消除，在不断的更换穿孔管2的同时，还需要精确调整穿孔管2在各环节上开口的孔径规格。这就使得需要制作 出多种规格的穿孔管2来满足不同的消噪需求，不仅仅进一步提高了加工成本，同时增加了消噪调试工作时间。Patent CN 204113389 U discloses an air intake muffler which can effectively reduce medium and high frequency and wide frequency intake noise. As shown in FIG. 1, it is composed of three parts: outer casing 1, perforated pipe 2 and outer casing 3. Wherein, the outer casing 1 is provided with a limiting slot, the perforated tube 2 is axially inserted into the outer casing 1 and is limited by the limiting slot, the outer casing 3 is fixedly connected to the outer casing 1, and a plurality of diameters are used between the perforating pipe 2 and the outer casing 1. The partition is separated, and a gap of 1.5 to 2.5 mm is left between the partition and the outer casing 1 so that the cavities on both sides of the partition communicate with each other, and a plurality of holes are formed in the surface of the perforated pipe 2. However, the muffler replacement disclosed in this patent document requires an overall replacement of the perforated pipe 2, which increases the cost. In addition, if it is necessary to eliminate the noise of a certain frequency, it is necessary to precisely adjust the aperture size of the opening of the perforated pipe 2 at each link while continuously changing the perforated pipe 2. This makes it necessary to produce a variety of perforated tubes 2 to meet different noise cancellation requirements, not only further increase the processing cost, but also increase the noise cancellation debugging work time.
发明内容Summary of the invention
有鉴于此，本发明的目的在于提供一种模块化的应用于汽车进气管道的降噪装置、汽车进气管道、汽车及降噪方法，使得气体可以通过降噪装置，从而消除噪音。具体方案如下：In view of the above, an object of the present invention is to provide a modular noise reduction device, an automobile intake duct, an automobile, and a noise reduction method applied to an intake duct of an automobile, so that the gas can pass through the noise reduction device, thereby eliminating noise. The specific plan is as follows:
第一方面，提供一种应用于汽车进气管道的降噪装置，其包括：In a first aspect, a noise reduction device for use in an intake duct of an automobile is provided, comprising:
上壳体；和Upper housing; and
下壳体，所述上壳体和所述下壳体之间沿进气管道的轴向排列有一个或多个腔室；以及a lower casing, wherein the upper casing and the lower casing are arranged with one or more chambers along an axial direction of the intake duct;
置于每个所述腔室内的中心管模块，每个所述中心管模块的管壁上开设有通孔。A central tube module is disposed in each of the chambers, and a through hole is formed in a wall of each of the central tube modules.
进一步的，每个所述中心管模块的外轮廓尺寸相同。Further, each of the central tube modules has the same outer contour size.
进一步的，所述中心管模块的管壁围成的中空部垂直于所述轴向的截面形状为圆形、椭圆形或矩形。Further, the hollow portion of the central tube module is circular, elliptical or rectangular in cross section perpendicular to the axial direction.
进一步的，所述通孔平行于所述轴向的截面形状为矩形、圆形和/或多边形。Further, the cross-sectional shape of the through hole parallel to the axial direction is a rectangle, a circle, and/or a polygon.
进一步的，各所述中心管模块的两端均设置有一圈挡圈；所述下壳体及所述上壳***于每个所述腔室的内壁处设置有插槽，所述中心管模块的两端的挡圈固定在所述插槽中。Further, a ring retaining ring is disposed at each end of each of the central tube modules; the lower casing and the upper casing are provided with slots at an inner wall of each of the chambers, and the central tube module The retaining rings at both ends are fixed in the slots.
进一步的，所述下壳体在相邻两个所述腔室之间设置有密封挡片(15)。Further, the lower casing is provided with a sealing flap (15) between two adjacent chambers.
进一步的，所述上壳体和所述下壳体采用卡接、焊接或螺栓固定。Further, the upper casing and the lower casing are fastened by snapping, welding or bolting.
进一步的，所述降噪装置的两端设置有连接管，所述连接管连接所述汽车进气管道。Further, both ends of the noise reduction device are provided with a connecting pipe, and the connecting pipe is connected to the automobile intake pipe.
进一步的，所述连接管通过法兰连接、卡箍连接和/或快插结构固定在所述汽车进气管道上。Further, the connecting tube is fixed on the intake duct of the automobile by a flange connection, a clamp connection and/or a quick insertion structure.
进一步的，所述多个腔室在所述轴向上的宽度相同。Further, the plurality of chambers have the same width in the axial direction.
第二方面，提供一种汽车进气管道，其包含：In a second aspect, an automotive intake duct is provided, comprising:
进气管道本体；Intake pipe body;
如上所述的降噪装置，所述降噪装置的两端连接所述进气管道本体。In the noise reducer as described above, both ends of the noise reducer are connected to the intake duct body.
第三方面，提供一种汽车，其包含如上所述的汽车气管道。In a third aspect, an automobile is provided that includes a car air duct as described above.
第四方面，还提供一种汽车进气管道的降噪方法，其包括：In a fourth aspect, a noise reduction method for an automobile intake duct is provided, which includes:
根据汽车进气管道的降噪需求，设定要应用于所述汽车进气管道的降噪装置中位于上壳体和下壳体之间的腔室的个数以及每个所述腔室的高度；Setting the number of chambers between the upper and lower casings of the noise reduction device to be applied to the intake duct of the automobile according to the noise reduction requirement of the intake duct of the automobile, and the chambers of each of the chambers height;
根据所述降噪需求，设计要置于所述腔室内的每个中心管模块；Designing each central tube module to be placed in the chamber according to the noise reduction requirement;
将设计好的所述中心管模块置于所述下壳体中；Locating the designed central tube module in the lower housing;
将所述上壳体与所述下壳体扣合，以组装成所述降噪装置；以及Fastening the upper casing to the lower casing to assemble the noise reduction device;
通过连接管将所述降噪装置连接至所述汽车进气管道。The noise reducer is coupled to the automotive intake duct by a connecting tube.
进一步的，该降噪方法还包括：Further, the noise reduction method further includes:
针对所述汽车进气管道，设计至少两个中心管模块组合；Designing at least two central tube module combinations for the automobile intake duct;
针对每个所述中心管模块组合，获取其被置于所述降噪装置中时对所述汽车进气管道产生的降噪效果；For each of the central tube module combinations, obtaining a noise reduction effect on the intake duct of the automobile when it is placed in the noise reduction device;
从所述至少两个中心管模块组合中选择降噪效果最优的，最终用于所述汽车进气管道的降噪装置。Selecting from the combination of the at least two central tube modules, the noise reduction effect is optimal, and finally used for the noise reduction device of the automobile intake duct.
进一步的，该降噪方法还包括：Further, the noise reduction method further includes:
在所述汽车进气管道的降噪需求变化时，根据变化后的降噪需求重新设计所述中心管模块；以及Reconfiguring the central tube module according to the changed noise reduction requirement when the noise reduction demand of the automobile intake duct changes;
将所述降噪装置的中心管模块更换为所述重新设计的中心管模块。The center tube module of the noise reducer is replaced with the redesigned center tube module.
进一步的，设计所述中心管模块包括：确定在所述中心管模块的侧壁上所开设的通孔的形状和开口尺寸。由上述实施例可知，本发明提供了一个可以消除汽车进气管道噪音的降噪装置，采用模块化结构，其包含上下外壳，一个或多个中心管模块，组成不同的腔室，每个腔室的宽度均相同，通过更换中心管模块来调整消音频率。气体从中间管道中流过，而由于降噪装置中心管壁面上 的开槽或者通孔以及外部壳体围成的腔体，噪音通过共振原理被消除。可以通过更换其中某一个或者多个中心管模块来迎合噪音的变化，而不需要整个地重新制作样件，有效降低了生产成本及降噪调试的时间。Further, designing the central tube module includes determining a shape and an opening size of a through hole formed in a sidewall of the central tube module. It can be seen from the above embodiments that the present invention provides a noise reduction device capable of eliminating noise of an automobile intake duct, and adopts a modular structure including an upper and lower casing and one or more central pipe modules, which constitute different chambers, each cavity. The width of the chamber is the same, and the audio frequency is adjusted by replacing the center tube module. The gas flows through the intermediate pipe, and noise is eliminated by the resonance principle due to the groove or through hole on the wall surface of the noise reduction device and the cavity enclosed by the outer casing. One or more of the central tube modules can be replaced to cater for noise changes without the need to re-make the entire sample, effectively reducing production costs and noise reduction debugging time.
附图说明DRAWINGS
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below. It is obvious that the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those of ordinary skill in the art without departing from the drawings.
图1为现有技术提供的一种能有效降低中高频、宽频进气噪声的进气消音器的示意图；1 is a schematic diagram of an intake silencer capable of effectively reducing medium and high frequency and wide frequency intake noise provided by the prior art;
图2为本发明一实施例中降噪装置的立体图；2 is a perspective view of a noise reduction device according to an embodiment of the present invention;
图3为本发明一实施例中降噪装置的截面图；3 is a cross-sectional view of a noise reduction device in accordance with an embodiment of the present invention;
图4为本发明一实施例中降噪装置的装配示意图；4 is a schematic view showing the assembly of a noise reduction device according to an embodiment of the present invention;
图5本发明在一实施例中降噪装置内单个中心管模块的示意图；FIG. 5 is a schematic diagram of a single central tube module in a noise reduction device according to an embodiment of the present invention; FIG.
图6为本发明另一实施例中降噪装置的装配示意图。FIG. 6 is a schematic view showing the assembly of a noise reduction device according to another embodiment of the present invention.
图7为本发明的降噪方法的一个实施例流程图；7 is a flow chart of an embodiment of a noise reduction method of the present invention;
图8为本发明的降噪方法的一个实施例中中心管模块选择方法的流程图；8 is a flow chart of a method for selecting a central tube module in an embodiment of the noise reduction method of the present invention;
图9为本发明一实施例中设计中心管模块的流程图。9 is a flow chart of designing a central tube module in accordance with an embodiment of the present invention.
具体实施方式Detailed ways
在下文的描述中，给出了大量具体的细节以便提供对本发明更为彻底的理解。然而，对于本领域技术人员而言显而易见的是，本发明可以无需一个或多个这些细节而得以实施。在其他的例子中，为了避免与本发明发生混淆，对于本领域公知的一些技术特征未进行描述。In the following description, numerous specific details are set forth in the However, it will be apparent to one skilled in the art that the present invention may be practiced without one or more of these details. In other instances, some of the technical features well known in the art have not been described in order to avoid confusion with the present invention.
为了彻底理解本发明，将在下列的描述中提出详细的步骤以及详细的结构，以便阐释本发明的技术方案。本发明的较佳实施例详细描述如下，然而除了这些详细描述外，本发明还可以具有其他实施方式。In order to fully understand the present invention, detailed steps and detailed structures are set forth in the following description in order to explain the invention. The preferred embodiments of the present invention are described in detail below, but the present invention may have other embodiments in addition to the detailed description.
下面就本发明的技术方案进行进一步的说明。The technical solution of the present invention will be further described below.
如图2-4所示，本发明提供一种应用于汽车进气管道的降噪装置，该降噪装置的两端接在汽车进气管道上，降噪装置设有上壳体10和下壳体13，上壳体10和下壳体13之间沿进气管道上设置有一排宽度相同的腔室16、17、18、19，每个腔室16、17、18、19内均***有可独立更换且外轮廓尺寸相同的中心管模块14。图2-4示出了本发明一实施例中所提供的一种具有4个腔室的降噪装置，相对应的，该降噪装置的4个腔室16、17、18、19内各自安插有1个中心管模块14。As shown in FIG. 2-4, the present invention provides a noise reduction device applied to an intake duct of an automobile. Both ends of the noise reduction device are connected to an intake duct of a vehicle, and the noise reduction device is provided with an upper casing 10 and a lower portion. The casing 13, between the upper casing 10 and the lower casing 13, is provided with a row of chambers 16, 17, 18, 19 having the same width along the intake duct, and each chamber 16, 17, 18, 19 is inserted. There is a central tube module 14 that can be replaced independently and has the same outer dimensions. 2-4 shows a noise reduction device having four chambers according to an embodiment of the present invention. Correspondingly, each of the four chambers 16, 17, 18, 19 of the noise reduction device A central tube module 14 is inserted.
其中，中心管模块14可为筒状，且每个中心管模块14的侧壁上可开设有通孔14a。在实际应用中，可根据消噪要求确定中心管模块14上的通孔14a的形状以及开口尺寸，并将具有所确定的形状及开口尺寸的通孔14a的中心管模块14分别插在各腔室16、17、18、19中。The central tube module 14 can be cylindrical, and a through hole 14a can be formed in a sidewall of each central tube module 14. In a practical application, the shape of the through hole 14a on the central tube module 14 and the size of the opening can be determined according to the noise canceling requirement, and the central tube module 14 having the through hole 14a of the determined shape and the opening size is respectively inserted in each cavity. In chambers 16, 17, 18, 19.
在本发明一实施例中，中心管模块14的截面形状可以为圆形、椭圆形或矩形结构。中心管模块14侧壁上开设的通孔14a的开口面积和形状可根据降噪的要求来设计，例如通孔14a的截面形状可以为矩形、圆形、多边形。如图5所示，在中心管模块14的侧壁上开设有一圈4条相断开的条状通孔14a。In an embodiment of the invention, the cross-sectional shape of the central tube module 14 may be a circular, elliptical or rectangular structure. The opening area and shape of the through hole 14a formed in the sidewall of the center tube module 14 can be designed according to the requirements of noise reduction. For example, the cross-sectional shape of the through hole 14a can be rectangular, circular, or polygonal. As shown in FIG. 5, a ring-shaped strip-shaped through hole 14a is formed in the side wall of the center tube module 14.
对比图4和图6所示，图4示出了在上下壳体10、13中的各中心管模块14上开设有形状相同但开口宽度不同的通孔14a；图6示出了在上下壳体中的各中心管模块14上开设有不同形状、不同密度的通孔。在实际应用中，可根据不同管路的具体降噪需求，来将合适的中心管模块组合放置到壳体中，之后进行降噪效果检测，并取降噪效果最佳的中心管模块组合配合上下壳体作为最终采用的降噪装置。4 and FIG. 6, FIG. 4 shows that the central tube modules 14 of the upper and lower housings 10, 13 are provided with through holes 14a of the same shape but different opening widths; FIG. 6 shows the upper and lower housings. Each central tube module 14 in the body is provided with through holes of different shapes and different densities. In practical applications, the appropriate central tube modules can be combined into the housing according to the specific noise reduction requirements of different pipelines, and then the noise reduction effect detection is performed, and the central tube module combination with the best noise reduction effect is matched. The upper and lower housings serve as the final noise reduction device.
在本发明一实施例中，如图3、4所述，中心管模块14两端均可设置有一圈挡圈14b。相应地，下壳体13及上壳体10位于每个腔室的内壁可设置有两条 插槽20。这样，中心管模块14两端的挡圈14b可插在插槽20中，以将中心管模块14固定在腔室16、17、18、19中。In an embodiment of the invention, as shown in FIGS. 3 and 4, a ring retaining ring 14b can be disposed at both ends of the central tube module 14. Accordingly, the lower casing 13 and the upper casing 10 are located on the inner wall of each chamber and may be provided with two slots 20. Thus, the retaining ring 14b at each end of the central tube module 14 can be inserted into the slot 20 to secure the central tube module 14 in the chambers 16, 17, 18, 19.
在本发明的实施例中，各腔室的高度可根据降噪的要求来设定，可以为相同或不同。例如，优选的，自降噪装置一端到另一端分布的各腔室的高度递增。具体地，如图3所示，自左向右的腔室16、腔室17、腔室18、腔室19的高度逐步递增。相应的，腔室16、腔室17、腔室18、腔室19内部的中心管模块14的通孔开口宽度可逐步递增或递减。在本发明一实施例中，下壳体13在相邻两个腔室之间可设置有密封挡片15。如图4所示，密封挡片15用于将相邻2个腔室除中心管模块14以外的部分相隔绝，使得气体仅能通过中心管模块14内的管道通过。此外，上壳体10和下壳体13扣在一起后，每个腔室16、17、18、19互相独立。其中，上壳体10和下壳体13可采用卡接、焊接或螺栓固定的方式固定在一起，以保证上下壳体连接的密封性，从而使得内部气体不外露。In an embodiment of the invention, the height of each chamber may be set according to the requirements of noise reduction, and may be the same or different. For example, preferably, the height of each chamber distributed from one end to the other end of the noise reduction device is increased. Specifically, as shown in FIG. 3, the heights of the chamber 16, the chamber 17, the chamber 18, and the chamber 19 from left to right are gradually increased. Correspondingly, the width of the through hole opening of the central tube module 14 inside the chamber 16, the chamber 17, the chamber 18, and the chamber 19 can be gradually increased or decreased. In an embodiment of the invention, the lower casing 13 may be provided with a sealing flap 15 between two adjacent chambers. As shown in FIG. 4, the sealing flap 15 serves to isolate portions of the adjacent two chambers other than the central tube module 14 so that gas can only pass through the conduits within the central tube module 14. Further, after the upper casing 10 and the lower casing 13 are fastened together, each of the chambers 16, 17, 18, 19 is independent of each other. The upper casing 10 and the lower casing 13 may be fixed together by means of snapping, welding or bolt fixing to ensure the sealing of the connection of the upper and lower casings, so that the internal gas is not exposed.
在本发明一实施例中，降噪装置两端可设置有连接管11。如图2所示，连接管11套在汽车进气管道上。连接管11可通过法兰连接、抱箍连接和/或快插结构固定在汽车进气管道上。多种连接方式可满足各种类型的增压器或自然吸气连接形式。并且，由于产品尺寸较小，亦可直接应用于增压器前后各个可能的管路段中。采用快插结构实现降噪装置与进气管路的连接时，可使用倒扣以避免脱出。此外，为有效保证连接管11与汽车进气管道连通的气密性，如图2所示，在降噪装置两端的连接管11上可设置有密封圈12。In an embodiment of the invention, the connecting tube 11 may be disposed at both ends of the noise reducing device. As shown in Fig. 2, the connecting pipe 11 is placed on the intake duct of the automobile. The connecting tube 11 can be fixed to the intake duct of the vehicle by a flange connection, a hoop connection and/or a quick-release structure. A variety of connections are available for all types of superchargers or naturally aspirated connections. Moreover, due to the small size of the product, it can also be directly applied to all possible pipeline sections before and after the supercharger. When the quick-connect structure is used to realize the connection between the noise reduction device and the intake pipe, the reverse buckle can be used to avoid the escape. In addition, in order to effectively ensure the airtightness of the connection between the connecting pipe 11 and the intake duct of the automobile, as shown in FIG. 2, a sealing ring 12 may be disposed on the connecting pipe 11 at both ends of the noise reducing device.
本发明还提供了一种汽车进气管道，其包含进气管道本体以及如上所述的降噪装置，所述降噪装置的两端连接所述进气管道本体。The present invention also provides an automobile intake duct comprising an intake duct body and a noise reducer as described above, the two ends of the noise reducer being coupled to the intake duct body.
本发明还提供了提供一种汽车，其包含如上所述的汽车气管道。The present invention also provides an automobile comprising the automotive gas duct as described above.
如图7-9所示，本发明还提供了一种应用于汽车进气管道的降噪方法，该方法包含以下步骤：As shown in Figures 7-9, the present invention also provides a noise reduction method for an automobile intake duct, the method comprising the following steps:
步骤101：根据汽车进气管道的降噪需求，设定要应用于所述汽车进气管道的降噪装置中位于上壳体和下壳体之间的腔室的个数以及每个所述腔室的高度；Step 101: setting the number of chambers between the upper casing and the lower casing in the noise reduction device to be applied to the automobile intake duct according to the noise reduction requirement of the automobile intake duct, and each of the The height of the chamber;
步骤102：根据所述降噪需求，设计要置于所述腔室内的每个中心管模块；Step 102: Design, according to the noise reduction requirement, each central tube module to be placed in the chamber;
步骤103：将设计好的所述中心管模块置于所述下壳体中；Step 103: placing the designed central tube module in the lower casing;
步骤104：将所述上壳体与所述下壳体扣合，以组装成所述降噪装置；以及Step 104: snapping the upper casing and the lower casing to assemble the noise reduction device;
步骤105：通过连接管将所述降噪装置连接至所述汽车进气管道。Step 105: Connect the noise reduction device to the automobile intake duct through a connecting pipe.
进一步的，该降噪方法还包括如下步骤：Further, the noise reduction method further includes the following steps:
步骤106：在所述汽车进气管道的降噪需求变化时，根据变化后的降噪需求重新设计所述中心管模块；以及Step 106: redesign the central tube module according to the changed noise reduction requirement when the noise reduction demand of the automobile intake duct changes;
步骤107：将所述降噪装置的中心管模块更换为所述重新设计的中心管模块。Step 107: Replace the central tube module of the noise reduction device with the redesigned central tube module.
该降噪方法可以通过更换其中某一个或者多个中心管模块来迎合噪音的变化，而不需要整个地重新制作样件；使得降噪装置在外壳不变的情况下，相对简单地更换其内部的中心管模块就可以完成对不同噪音的消除，从而有效降低了生产成本及降噪调试的时间。The noise reduction method can replace the one or more central tube modules to cater for the change of noise without re-creating the whole sample; so that the noise reduction device relatively replaces the interior without changing the outer casing. The central tube module can eliminate the different noises, which effectively reduces the production cost and the time for noise reduction debugging.
在一实施例中，设计所述中心管模块的方法包括：In an embodiment, the method of designing the central tube module includes:
步骤1021：确定在所述中心管模块的侧壁上所开设的通孔的形状和开口尺寸。Step 1021: Determine the shape and opening size of the through hole opened on the sidewall of the center tube module.
优选的，该降噪方法中对于中心管模块的选择方法包括如下步骤：Preferably, the method for selecting a central tube module in the noise reduction method comprises the following steps:
步骤201：针对所述汽车进气管道，设计至少两个中心管模块组合；Step 201: Design at least two central tube module combinations for the automobile intake duct;
步骤202：针对每个所述中心管模块组合，获取其被置于所述降噪装置中时对所述汽车进气管道产生的降噪效果；Step 202: For each of the central tube module combinations, obtain a noise reduction effect on the intake duct of the automobile when it is placed in the noise reduction device;
步骤203：从所述至少两个中心管模块组合中选择降噪效果最优的，最终用于所述汽车进气管道的降噪装置。Step 203: Select a noise reduction device that is optimal for the noise reduction effect from the combination of the at least two central tube modules, and finally used for the intake duct of the automobile.
在上述实施例中，可根据不同的汽车进气管路及不同的降噪需求，将不同的中心管模块组合放置到壳体中，之后通过降噪效果的检测，获取不同中心管模块组合中降噪效果相对较佳的中心管模块组合配合上下壳体作为降噪装置，最终用于汽车进气管道，从而可以降噪效果相对较好的完成对不同噪音的消除，相对灵活，且能够有效的降低生产成本及调试时间。In the above embodiment, different central tube modules can be combined into the housing according to different automobile intake pipelines and different noise reduction requirements, and then the detection of the noise reduction effect is used to obtain the combination of different central tube module combinations. The central tube module with relatively good noise effect is combined with the upper and lower casings as a noise reduction device, and finally used for the automobile intake pipe, so that the noise reduction effect can be relatively well accomplished to eliminate different noises, relatively flexible, and effective. Reduce production costs and commissioning time.
以上对本发明的较佳实施例进行了描述。需要理解的是，本发明并不局限于上述特定实施方式，其中未尽详细描述的设备和结构应该理解为用本领域中的普通方式予以实施；任何熟悉本领域的技术人员，在不脱离本发明技术方案范围情况下，都可利用上述揭示的方法和技术内容对本发明技术方案做出许多可能的变动和修饰，或修改为等同变化的等效实施例，这并不影响本发明的实质内容。因此，凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化及修饰，均仍属于本发明技术方案保护的范围内。The preferred embodiments of the present invention have been described above. It is to be understood that the invention is not limited to the specific embodiments described above, and that the device and structure are not described in detail. In the scope of the present invention, many possible variations and modifications may be made to the technical solutions of the present invention by using the methods and technical contents disclosed above, or modified into equivalent equivalents, which do not affect the substance of the present invention. . Therefore, any simple modifications, equivalent changes, and modifications of the above embodiments may be made without departing from the spirit and scope of the invention.

Claims (16)

  1. 一种应用于汽车进气管道的降噪装置，其特征在于，包括：A noise reduction device for an automobile intake duct, characterized in that it comprises:
    上壳体(10)；和Upper housing (10); and
    下壳体(13)，所述上壳体(10)和所述下壳体(13)之间沿进气管道的轴向排列有一个或多个腔室(16、17、18、19)；以及a lower casing (13), between the upper casing (10) and the lower casing (13), one or more chambers (16, 17, 18, 19) are arranged along the axial direction of the intake duct. ;as well as
    置于每个所述腔室(16、17、18、19)内的中心管模块(14)，每个所述中心管模块(14)的管壁上开设有通孔(14a)。A central tube module (14) is disposed in each of the chambers (16, 17, 18, 19), and a through hole (14a) is formed in a wall of each of the central tube modules (14).
  2. 如权利要求1所述的降噪装置，其特征在于，每个所述中心管模块(14)的外轮廓尺寸相同。The noise reducer of claim 1 wherein each of said central tube modules (14) has the same outer contour dimension.
  3. 如权利要求1或2所述的降噪装置，其特征在于，所述中心管模块(14)的管壁围成的中空部垂直于所述轴向的截面形状为圆形、椭圆形或矩形。The noise reducer according to claim 1 or 2, wherein the hollow portion of the wall tube of the center tube module (14) has a circular, elliptical or rectangular shape perpendicular to the axial cross section. .
  4. 如权利要求1或2所述的降噪装置，其特征在于，所述通孔(14a)平行于所述轴向的截面形状为矩形、圆形和/或多边形。The noise reducer according to claim 1 or 2, characterized in that the cross-sectional shape of the through hole (14a) parallel to the axial direction is a rectangle, a circle and/or a polygon.
  5. 如权利要求1所述的降噪装置，其特征在于，The noise reducer of claim 1 wherein:
    各所述中心管模块(14)的两端均设置有一圈挡圈(14b)；Each of the central tube modules (14) is provided with a ring retaining ring (14b) at both ends thereof;
    所述下壳体(13)及所述上壳体(10)位于每个所述腔室(16、17、18、19)的内壁处设置有插槽(20)，The lower casing (13) and the upper casing (10) are provided with slots (20) at inner walls of each of the chambers (16, 17, 18, 19).
    所述中心管模块(14)的两端的挡圈(14b)固定在所述插槽(20)中。A retaining ring (14b) at both ends of the central tube module (14) is fixed in the slot (20).
  6. 如权利要求1所述的降噪装置，其特征在于，所述下壳体(13)在相邻两个所述腔室(16、17、18、19)之间设置有密封挡片(15)。A noise reducer according to claim 1, wherein said lower casing (13) is provided with a sealing flap between adjacent ones of said chambers (16, 17, 18, 19) (15) ).
  7. 如权利要求1所述的降噪装置，其特征在于，所述上壳体和所述下壳体采用卡接、焊接或螺栓固定。The noise reducer of claim 1 wherein said upper and lower housings are snap-fitted, welded or bolted.
  8. 如权利要求1所述的降噪装置，其特征在于，The noise reducer of claim 1 wherein:
    所述降噪装置的两端设置有连接管，The two ends of the noise reduction device are provided with a connecting tube.
    所述连接管连接所述汽车进气管道。The connecting pipe connects the automobile intake duct.
  9. 如权利要求8所述的降噪装置，其特征在于，The noise reducer of claim 8 wherein:
    所述连接管通过法兰连接、卡箍连接和/或快插结构固定在所述汽车进气管道上。The connecting tube is fixed to the intake duct of the automobile by a flange connection, a clamp connection and/or a quick insertion structure.
  10. 如权利要求1所述的应用于汽车进气管道的降噪装置，其特征在于，所述多个腔室在所述轴向上的宽度相同。A noise reducer for use in an intake duct of an automobile according to claim 1, wherein said plurality of chambers have the same width in said axial direction.
  11. 一种汽车进气管道，其特征在于，包含：An automobile intake duct characterized by comprising:
    进气管道本体；Intake pipe body;
    如权利要求1-10任一所述的降噪装置，所述降噪装置的两端连接所述进气管道本体。A noise reduction device according to any one of claims 1 to 10, wherein both ends of the noise reduction device are connected to the intake duct body.
  12. 一种汽车，其特征在于，包含如权利要求11所述的汽车进气管道。An automobile characterized by comprising the automobile intake duct of claim 11.
  13. 一种汽车进气管道的降噪方法，包括：A method for noise reduction of an automobile intake duct, comprising:
    根据汽车进气管道的降噪需求，设定要应用于所述汽车进气管道的降噪装置中位于上壳体和下壳体之间的腔室的个数以及每个所述腔室的高度；Setting the number of chambers between the upper and lower casings of the noise reduction device to be applied to the intake duct of the automobile according to the noise reduction requirement of the intake duct of the automobile, and the chambers of each of the chambers height;
    根据所述降噪需求，设计要置于所述腔室内的每个中心管模块；Designing each central tube module to be placed in the chamber according to the noise reduction requirement;
    将设计好的所述中心管模块置于所述下壳体中；Locating the designed central tube module in the lower housing;
    将所述上壳体与所述下壳体扣合，以组装成所述降噪装置；以及Fastening the upper casing to the lower casing to assemble the noise reduction device;
    通过连接管将所述降噪装置连接至所述汽车进气管道。The noise reducer is coupled to the automotive intake duct by a connecting tube.
  14. 根据权利要求13所述的降噪方法，其特征在于，还包括：The noise reduction method according to claim 13, further comprising:
    针对所述汽车进气管道，设计至少两个中心管模块组合；Designing at least two central tube module combinations for the automobile intake duct;
    针对每个所述中心管模块组合，获取其被置于所述降噪装置中时对所述汽车进气管道产生的降噪效果；For each of the central tube module combinations, obtaining a noise reduction effect on the intake duct of the automobile when it is placed in the noise reduction device;
    从所述至少两个中心管模块组合中选择降噪效果最优的，最终用于所述汽车进气管道的降噪装置。Selecting from the combination of the at least two central tube modules, the noise reduction effect is optimal, and finally used for the noise reduction device of the automobile intake duct.
  15. 根据权利要求13所述的降噪方法，其特征在于，还包括：The noise reduction method according to claim 13, further comprising:
    在所述汽车进气管道的降噪需求变化时，根据变化后的降噪需求重新设计所述中心管模块；以及Reconfiguring the central tube module according to the changed noise reduction requirement when the noise reduction demand of the automobile intake duct changes;
    将所述降噪装置的中心管模块更换为所述重新设计的中心管模块。The center tube module of the noise reducer is replaced with the redesigned center tube module.
  16. 根据权利要求13所述的降噪方法，其特征在于，设计所述中心管模块，包括：The noise reduction method according to claim 13, wherein the designing the central tube module comprises:
    确定在所述中心管模块的侧壁上所开设的通孔的形状和开口尺寸。The shape and opening size of the through holes formed in the side walls of the center tube module are determined.
PCT/CN2018/095129 2017-10-17 2018-07-10 Noise reduction device applicable to air intake ducting of automobile, air intake ducting of automobile, automobile, and noise reduction method WO2019076094A1 (en)

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