KR20220157794A - Apparatus for reducing intake noise of vehicle air intake system - Google Patents

Abstract

The present invention relates to an intake noise reduction apparatus of a vehicle intake system. According to the present invention, a body member (100) wherein a plurality of perforated holes (110) are formed and a cover member (200) wherein a plurality of flow paths (210) are formed are installed to be connected to an air cleaner (20), so that low-frequency intake noise can be improved. In addition, through standardization of the body member (100) and the cover member (200), the intake noise reduction apparatus of the vehicle intake system of the present invention can be commonly used regardless of a vehicle type. An objective of the present invention is to reduce a cost and improve marketability.

Description

Intake noise reduction device of vehicle intake system {APPARATUS FOR REDUCING INTAKE NOISE OF VEHICLE AIR INTAKE SYSTEM}

The present invention relates to an intake noise reduction device for a vehicle intake system, and more particularly, to an intake noise reduction device for a vehicle intake system capable of reducing intake noise by mounting a perforated hole assembly having a plurality of perforated holes in an air cleaner. It is a technology about

An intake system (intake system) of a vehicle includes an air duct, an air cleaner, an air hose, and a resonator.

The air duct plays the role of inhaling fresh air from the outside while driving, and the air cleaner filters impurities (dust and moisture, etc.) contained in the intake air through a filter (element) to reduce intake sound and backfire. In the event of a fire, it plays a role in preventing abrasion of cylinders and pistons and contamination of oil by stopping flames. do

The air cleaner includes a case forming an outer shape and a filter (element) positioned within the case to filter out impurities.

The air cleaner tends to have a small external size in consideration of interference with surrounding parts and an installation structure, and as a result, a case constituting the air cleaner tends to be formed low in height.

In the air cleaner having such a low-height case, air moves in an up-and-down direction (hereinafter referred to as a vertical direction), and accordingly, a filter for filtering out foreign substances moving in the vertical direction is mounted in the case.

The resonator is used to improve low-frequency intake noise. As the target frequency of the intake noise to be improved is lower, a large-capacity resonator must be used or the number of resonators used must be increased.

However, in the current trend in which the space of the engine room becomes increasingly narrow, there is a limit to using a large-capacity resonator or increasing the number of resonators used.

The matters described as the background art above are only for improving understanding of the background of the present invention, and should not be taken as an admission that they correspond to prior art already known to those skilled in the art.

Korean Patent Publication No. 10-2018-0014501

The present invention is an intake noise reduction device for a vehicle intake system capable of reducing intake noise by using a perforated hole assembly having a plurality of perforated holes, which can reduce intake noise in place of a resonator in a narrow engine room space. It is possible to use more efficiently, and in particular, it is aimed at reducing costs and improving marketability as it can be used in common regardless of vehicle type.

In order to achieve the above object, an intake noise reduction device for a vehicle intake system according to an embodiment of the present invention is installed in a vehicle intake system and includes a body member having a plurality of perforated holes for reducing intake noise; and a cover member coupled to the body member and having a plurality of passages connected to the outside.

The body member is installed in an air cleaner constituting a vehicle intake system; It is characterized in that the inside of the body member and the air cleaner are connected through a perforated hole.

The cover member is provided with a plurality of coupling hooks; The coupling hook is characterized in that it penetrates the body member and is coupled to the air cleaner.

and a sealing member inserted between the body member and the cover member and between the cover member and the air cleaner to maintain airtightness.

The cover member is provided with a plurality of coupling hooks; The coupling hook is characterized in that it is coupled to the air cleaner by integrally penetrating the body member and the sealing member.

The body member is divided into a perforated hole forming part in which perforated holes are densely formed and a perforated hole non-formed part in which perforation holes are not formed; It is characterized in that the perforated hole forming part is located above the perforated hole non-formed part to prevent water from entering the air cleaner through the perforated hole in a state where the body member and the cover member are installed in the air cleaner.

The perforated hole forming portion is characterized in that a portion corresponding to an area of 2/3 of the body member in a downward direction from the upper end of the body member.

In the body member, a partition wall partitioning a perforated hole forming part and a perforated hole non-forming part is formed to protrude inward; It is characterized in that when a phenomenon in which moisture accumulates in the body member, the inflow of moisture into the perforated hole is blocked by the barrier rib.

The dense shape of the perforation holes concentrated in the perforation hole forming unit so that the maximum number of perforation holes can be formed in the perforation forming unit is characterized in that it is formed in either an isosceles trapezoidal shape or a triangular shape.

A drain hole opening downward is formed in the body member; Moisture and foreign substances introduced into the body member are discharged to the outside through a drain hole.

In a state where the body member and the cover member are installed in the air cleaner, the flow path is formed only in a portion corresponding to 2/3 of the area of the cover member in a downward direction from the top of the cover member.

The passage is formed to be stacked in multiple stages along the vertical direction of the cover member; The passage is characterized in that it is formed so that its end faces downward of the cover member after extending long into the inside of the cover member.

In the air cleaner, the portion where the body member is installed is characterized in that it is formed as a flange portion bent in an L shape in cross section to increase rigidity.

It is characterized in that a plurality of beads connected to the flange portion are formed in the air cleaner to reinforce the flange portion.

The air cleaner includes a filter for filtering out foreign substances; The body member and the cover member are coupled to the air cleaner to be positioned at the front end of the filter.

An intake noise reduction device for a vehicle intake system according to the present invention has a configuration in which a body member having a plurality of perforated holes and a cover member having a plurality of flow paths are installed to be connected to an air cleaner to improve low-frequency intake noise, The resonator used in the conventional air intake system can be eliminated or the number of resonators used can be reduced, and through this, cost reduction can be achieved and the space of the narrow engine room can be used more efficiently.

In addition, the embodiment according to the present invention has a configuration capable of standardizing a body member with a perforated hole and a cover member with a flow path formed, and through this, it is possible to use it in common regardless of the type of vehicle, thereby reducing costs and improving marketability. There are effects that can be done.

1 is a diagram of a vehicle intake system equipped with an intake noise reduction device according to the present invention;
2 is an enlarged view of a portion where a cover member is installed in FIG. 1;
Figure 3 is a view of the body member installed through the air cleaner as an internal structure of Figure 2;
4 is an exploded view of the intake noise reduction device according to the present invention;
5 is a cross-sectional view taken along line I-I of FIG. 2;
6 is a cross-sectional view along line II-II of FIG. 3 .

Specific structural or functional descriptions of the embodiments of the present invention disclosed in this specification or application are merely illustrated for the purpose of explaining the embodiments according to the present invention, and the embodiments according to the present invention may be implemented in various forms. It may be and should not be construed as being limited to the embodiments described in this specification or application.

Embodiments according to the present invention can apply various changes and can have various forms, so specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosures, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The above terms are only for the purpose of distinguishing one component from another component, e.g., without departing from the scope of rights according to the concept of the present invention, a first component may be termed a second component, and similarly The second component may also be referred to as the first component.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle. Other expressions describing the relationship between elements, such as "between" and "directly between" or "adjacent to" and "directly adjacent to", etc., should be interpreted similarly.

Terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "having" are intended to designate that the described feature, number, step, operation, component, part, or combination thereof exists, but one or more other features or numbers However, it should be understood that it does not preclude the presence or addition of steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined herein, they are not interpreted in an ideal or excessively formal meaning. .

A control unit (controller) according to an exemplary embodiment of the present invention includes a non-volatile memory (not shown) configured to store data relating to an algorithm configured to control the operation of various components of the vehicle or software instructions for reproducing the algorithm, and It may be implemented through a processor (not shown) configured to perform an operation described below using data stored in a corresponding memory. Here, the memory and the processor may be implemented as individual chips. Alternatively, the memory and processor may be implemented as a single chip integrated with each other. A processor may take the form of one or more processors.

Hereinafter, an intake noise reduction device for a vehicle intake system according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the intake system (intake system) of the engine that sucks fresh air (outside air) into the engine combustion chamber during the intake stroke of the engine piston includes an intake duct 10 for sucking fresh air, filtering foreign substances contained in the fresh air The main includes an air cleaner 20 and an intake hose 30 for guiding the movement of the air from which foreign substances have been filtered to the combustion chamber of the engine.

The air cleaner 20 includes a case 21 forming an outer shape, and a filter 22 (element) positioned within the case 21 to filter out impurities.

The case 21 of the air cleaner 20 includes a body in which the filter 22 is installed, and a door that opens and closes the body.

In addition, the embodiment according to the present invention is characterized by a configuration in which a perforated hole assembly having a plurality of perforated holes is installed in the air cleaner 20 to reduce intake noise generated during air intake.

That is, the intake noise reduction device (perforated hole assembly) according to the present invention is installed in a vehicle intake system as shown in FIGS. 100); and a cover member 200 coupled to the body member 100 and having a plurality of passages 210 connected to the outside.

The body member 100 is installed in the air cleaner 20 constituting the vehicle intake system according to the present invention, and the body member 100 and the air cleaner 20 are internally connected to each other through a perforated hole 110. becomes

Therefore, during the intake stroke of the engine piston, fresh air moves to the combustion chamber of the engine through the intake duct 10, the air cleaner 20, and the intake hose 30. Through this, it is possible to reduce low-frequency intake noise while moving the air cleaner 20 and the body member 100.

According to the present invention, the body member 100 having a plurality of perforated holes 110 and the cover member 200 having a plurality of passages 210 are used to improve low-frequency intake noise and play the role of a conventional resonator. It is performed instead, and there is an advantage of eliminating or reducing the number of resonators used in the conventional intake system, and through this, there is an advantage of significantly reducing cost.

Conventionally, as the target frequency of the intake noise to be improved is lower, a large-capacity resonator or the number of resonators used must be increased. However, in the embodiment according to the present invention, the number of perforated holes 110 formed in This can be realized through tuning of the hole size.

The body member 100 and the cover member 200 are configured to be connected to the outside through the perforated hole 110 and the flow path 210, and foreign substances from the outside pass through the flow path 210 to the cover member 200 and the body member 100. ), and can be introduced into the air cleaner 20 through the perforated hole 110.

Therefore, according to the present invention, the body member 100 and the cover member 200 are installed in the air cleaner 20 so as to be positioned at the front end of the filter 22 constituting the air cleaner 20 to prevent inflow of foreign substances into the engine. It would be desirable to be able to block it.

That is, foreign substances introduced into the cover member 200 and the body member 100 through the passage 210 are introduced into the air cleaner 20 through the perforated hole 110, and the air cleaner 20 ) is filtered by the filter 22 and blocked from moving to the intake hose 30, thereby blocking the inflow of foreign substances into the engine.

The cover member 200 is provided with a plurality of coupling hooks 220, and the coupling hooks 220 pass through the body member 100 and are coupled to the air cleaner 20.

A plurality of coupling hooks 220 are arranged at equal intervals along the circumferential direction of the cover member 200, and the ends of the coupling hooks 220 are formed in a triangular protrusion shape.

Three or more coupling hooks 220 may be formed at equal intervals along the circumferential direction of the cover member 200 .

The body member 100 is formed with the same number of hook holes 120 through which the coupling hooks 220 pass through, and the air cleaner 20 has coupling holes through which the coupling hooks 220 penetrate and fasten. (23) is formed in the same number as the coupling hook (220).

Embodiments according to the present invention further include a sealing member 300 inserted between the body member 100 and the cover member 200 and between the cover member 200 and the air cleaner 20 to maintain airtightness.

The sealing member 300 is formed in a circular donut shape, and preferably formed of a rubber material to improve airtightness, but is not limited thereto.

The coupling hook 220 of the cover member 200 integrally penetrates the body member 100 and the sealing member 300 and is coupled to the air cleaner 20. To this end, the coupling hook 220 is also attached to the sealing member 300 The same number of hook holes 310 are formed.

The body member 100, the cover member 200, and the sealing member 300 are fixedly installed to the air cleaner 20 through the coupling hooks 220 of the cover member 200, and thereby the body member 100 and In order to install the cover member 200, there is no need for fusion bonding work or welding work, so there is an advantage in that work convenience can be improved and costs can be reduced.

The body member 100 is divided into a perforated hole forming part 130 in which perforated holes 110 are densely formed and a perforated hole non-formed part 140 in which perforated holes 110 are not formed, as shown in FIG. 3, and the body member ( 100) and the cover member 200 are installed in the air cleaner 20, the perforated hole forming part 130 is configured to prevent moisture from entering the air cleaner 20 through the perforated hole 110. It is preferable to be located above the non-perforated hole portion 140 .

At this time, the perforated hole forming portion 130 is a portion corresponding to 2/3 of the area of the body member 100 from the top of the body member 100 to the bottom, and the perforated hole 110 is intensively formed only in this portion. make it possible

When the perforated hole 110 is formed from the upper end of the body member 100 to the part exceeding the area of 2/3 of the body member 100 in the downward direction, moisture is air cleaner through the perforated hole 110 formed at the bottom 20), and if the perforated hole 110 is formed only in an area smaller than 2/3 of the body member 100, the effect of reducing intake noise using the perforated hole 110 is expected It is difficult to do so, therefore, a part corresponding to 2/3 of the area of the body member 100 from the upper end of the body member 100 downward is set as the perforated hole forming part 130, and the maximum number of parts is set in this part. It is characterized in that the perforated holes 110 are formed so as to be intensively arranged.

In the embodiment according to the present invention, the dense shape of the perforated holes 110 that are concentrated in the perforated hole forming part 130 so that the maximum number of perforated holes 110 can be formed in the perforated hole forming part 130. It is preferable to be formed in either an isosceles trapezoidal shape or a triangular shape, but is not limited thereto. There will be.

According to the present invention, the body member 100 has a partition wall 150 partitioning the perforated hole forming portion 130 and the perforated hole non-forming portion 140 so as to protrude toward the inside of the body member 100.

When a phenomenon in which moisture accumulates in the body member 100 occurs, the movement of moisture is blocked by the barrier rib 150 so that the moisture can be prevented from entering the air cleaner 20 through the perforated hole 110 .

In addition, the embodiment according to the present invention further includes a drain hole 160 opened to the lower side of the body member 100 as shown in FIG. 5, and moisture and foreign substances introduced into the body member 100 are drained through the drain hole ( 160) through which it becomes a structure that is discharged to the outside. (Arrow M1)

In a state where the body member 100 and the cover member 200 are installed in the air cleaner 20, the flow path 210 formed in the cover member 200 extends from the upper end of the cover member 200 to the lower direction of the cover member 200. It is formed only in the area corresponding to 2/3 of the area, and through this, it is possible to block the phenomenon that moisture is introduced into the inside of the body member 100 and the cover member 200 as much as possible.

The inlet of the cover member 200 is often opened through the flow path 210 up to 2/3 of the point in the downward direction based on the upper end of the cover member 200 because water often hits and rises from below due to the nature of the vehicle.

When the flow path 210 is formed from the upper end of the cover member 200 to a portion exceeding 2/3 of the area of the cover member 200 in a downward direction, moisture flows through the flow path 210 formed at the bottom of the body member 100. And there is a disadvantage that can flow into the inside of the cover member 200, and if the flow path 210 is formed only in an area smaller than 2/3 of the cover member 200, the intake noise reduction effect using the flow path 210 It is difficult to expect, therefore, it is characterized by forming a plurality of flow passages 210 in an area corresponding to 2/3 of the cover member 200 from the upper end of the cover member 200 to the lower direction.

The channel 210 according to the present invention has a structure formed by stacking a plurality of channels in multiple stages along the vertical direction of the cover member 200, and in particular, the channel 210 has a narrow cross-sectional area and extends long into the inside of the cover member 200. Then, the tip is formed to face the bottom of the cover member 200, and through this, moisture and foreign substances introduced into the cover member 200 through the flow path 210 fall down and cover the drain hole 160. It becomes a structure that is discharged to the outside through.

The body member 100 according to the present invention penetrates the air cleaner 20 and is installed to protrude into the air cleaner 20, and for this purpose, the air cleaner 20 has an installation hole through which the body member 100 passes ( 24) is formed.

In addition, in addition to the installation hole 24 in which the body member 100 is installed in the air cleaner 20, as described above, a plurality of coupling holes 23 through which the coupling hooks 220 of the cover member 200 are penetrated and fastened. is also formed.

In this way, when the installation hole 24 for installing the body member 100 and the plurality of coupling holes 23 for coupling the coupling hook 220 are formed in the air cleaner 20, the body member 100 is installed. The rigidity of the part is weakened, resulting in a disadvantage that the overall rigidity is weakened.

In order to improve this, the present invention forms a flange portion 25 bent in an L shape in the area where the body member 100 is installed in the air cleaner 20 so that rigidity can be increased.

In addition, the present invention is characterized by a structure in which a plurality of beads 26 connected to the flange portion 25 are formed in the air cleaner 20 to reinforce the flange portion 25.

As described above, in the embodiment according to the present invention, the body member 100 having a plurality of perforated holes 110 and the cover member 200 having a plurality of passages 210 are installed to be connected to the air cleaner 20. As a configuration that can improve low-frequency intake noise, it is possible to eliminate the resonator used in the conventional intake system or reduce the number of resonators used, and through this, it is possible to seek cost reduction and It has the advantage of more efficient use of space.

In addition, the embodiment according to the present invention has a configuration capable of standardizing the body member 100 with the perforated hole 110 and the cover member 200 with the flow path 210 formed, and through this, it is commonly used regardless of vehicle type. As it can be used, it has the advantage of reducing costs and improving marketability.

Although the present invention has been shown and described in relation to specific embodiments, it is known in the art that the present invention can be variously improved and changed without departing from the technical spirit of the present invention provided by the claims below. It will be self-evident to those skilled in the art.

10 - intake duct 20 - air cleaner
21 - case 22 - filter
23 - coupling hole 24 - installation hole
25 - flange portion 26 - bead
30 - intake hose 100 - body member
110 - perforated hole 120 - hook hole
130 - perforated hole forming part 140 - perforated hole non-formed part
150 - bulkhead 160 - drain hole
200 - Cover member 210 - Euro
220 - coupling hook 300 - sealing member
310 - hook hole

Claims (14)

A body member installed in a vehicle intake system and having a plurality of perforated holes to reduce intake noise; and
An intake noise reduction device for a vehicle intake system comprising: a cover member coupled to the body member and having a plurality of passages connected to the outside. The method of claim 1,
The body member is installed in an air cleaner constituting a vehicle intake system;
The intake noise reduction device of the vehicle intake system, characterized in that the inside of the body member and the air cleaner are connected through a perforated hole. The method of claim 2,
The cover member is provided with a plurality of coupling hooks;
The intake noise reduction device of the vehicle intake system, characterized in that the coupling hook penetrates the body member and is coupled to the air cleaner. The method of claim 2,
The intake noise reduction device of a vehicle intake system further comprising a sealing member inserted between the body member and the cover member and between the cover member and the air cleaner to maintain airtightness. The method of claim 4,
The cover member is provided with a plurality of coupling hooks;
The intake noise reduction device of a vehicle intake system, characterized in that the coupling hook is coupled to the air cleaner by integrally penetrating the body member and the sealing member. The method of claim 2,
The body member is divided into a perforated hole forming part in which perforated holes are densely formed and a perforated hole non-formed part in which perforation holes are not formed;
The perforated hole forming part is located above the perforated hole non-formed part to prevent moisture from entering the air cleaner through the perforated hole in a state where the body member and the cover member are installed in the air cleaner. Intake noise reduction device. The method of claim 6,
The intake noise reduction device of a vehicle intake system, characterized in that the perforated hole forming portion corresponds to an area of 2/3 of the body member in a downward direction from the upper end of the body member. The method of claim 6,
In the body member, a partition wall partitioning a perforated hole forming part and a perforated hole non-forming part is formed to protrude inward;
An intake noise reduction device for a vehicle intake system, characterized in that when moisture accumulates in the body member, the barrier rib blocks the moisture from entering the perforated hole. The method of claim 6,
The intake of the vehicle intake system, characterized in that the dense shape of the perforation holes densely concentrated in the perforation hole forming part so that the maximum number of perforation holes can be formed in the perforation hole forming part is formed in either an isosceles trapezoid shape or a triangular shape. noise reduction device. The method of claim 1,
A drain hole opening downward is formed in the body member;
The intake noise reduction device of a vehicle intake system, characterized in that the moisture and foreign substances introduced into the body member are discharged to the outside through a drain hole. The method of claim 1,
The passage is formed to be stacked in multiple stages along the vertical direction of the cover member;
The intake noise reduction device of a vehicle intake system, characterized in that the passage extends long inside the cover member and then is formed so that an end faces downward of the cover member. The method of claim 3,
The intake noise reduction device of the vehicle intake system, characterized in that the portion where the body member is installed in the air cleaner is formed as a flange portion bent in an L shape in cross section to increase rigidity. The method of claim 12,
An intake noise reduction device for a vehicle intake system, characterized in that a plurality of beads connected to the flange portion are formed in the air cleaner to reinforce the flange portion. The method of claim 2,
The air cleaner includes a filter for filtering out foreign substances;
The intake noise reduction device of the vehicle intake system, characterized in that the body member and the cover member are coupled to the air cleaner so as to be located at the front end of the filter.

Images