CN212716948U - Air inlet guide pipe - Google Patents

Abstract

The utility model provides an air inlet pipe, the last amortization structure that is equipped with of air inlet pipe, amortization structure includes a plurality of ribs, and is a plurality of the mutual vertically and horizontally staggered connection of rib, the rib is in form a recess on air inlet pipe's the inner wall, just the rib is in form an arch on air inlet pipe's the outer wall, communicate each other between the recess and form an amortization cavity. This air intake duct is through being provided with a plurality of ribs on the lateral wall of pipe to a plurality of ribs vertically and horizontally staggered interconnect are in the same place, and a plurality of ribs form a plurality of recesses on air intake duct's inner wall, and intercommunication each other forms a amortization cavity between a plurality of recesses, and this amortization cavity can increase the volume weight of this air intake duct inside sound absorption pipeline, makes this air intake duct have the noise elimination effect of broadband, thereby eliminates the noise that this air intake duct produced. The resonant cavity is omitted from being sleeved on the outer surface of the air inlet guide pipe to eliminate noise, so that the production cost is reduced.

Description

Air inlet guide pipe

Technical Field

The utility model relates to an auto parts makes the field, in particular to air inlet duct.

Background

At present, performances such as noise, vibration and comfort have become an important index for evaluating the quality of automobiles. With the increasing attention of people to noise pollution, the regulations for automobile noise are also becoming stricter, and the intake noise of automobiles is also gaining sufficient attention as an important noise source of automobiles.

The air intake system of the engine is one of the most important noise sources of the automobile, and the noise mainly refers to the noise at the air inlet. In order to eliminate noise at the air intake, a silencing element is generally installed at the air intake, and the silencing element generally includes a divergent muffler and a side branch muffler, wherein the divergent muffler generally includes an air cleaner, and an intake duct for intake air is generally installed at one side of the air cleaner.

The engine can generate strong vibration during working, when the rotating speed of the engine is at a lower frequency, the air inlet guide pipe of the conventional air filter can generate strong resonance with the engine, sound waves generated by the resonance of the air inlet guide pipe and the engine can cause generation of larger noise, and in order to eliminate the noise generated by the air inlet guide pipe, a resonant cavity is usually sleeved on the outer surface of the air inlet guide pipe, but the resonant cavity is higher in cost, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing an air inlet duct to solve prior art's air cleaner and need establish the resonant cavity on air inlet duct's surface cover and come the noise abatement, lead to increasing manufacturing cost's problem.

The utility model provides an air inlet pipe, the last amortization structure that is equipped with of air inlet pipe, amortization structure includes a plurality of ribs, and is a plurality of the mutual vertically and horizontally staggered connection of rib, the rib is in form a recess on air inlet pipe's the inner wall, just the rib is in form a arch on air inlet pipe's the outer wall, communicate each other between the recess and form a amortization cavity.

The utility model has the advantages that: through being provided with a plurality of ribs on the lateral wall at the pipe to a plurality of ribs vertically and horizontally staggered interconnect are in the same place, and a plurality of ribs form a plurality of recesses on air intake duct's inner wall, communicate each other between a plurality of recesses and form a amortization cavity, and this amortization cavity can increase the volume weight of this air intake duct inside sound absorption pipeline, makes this air intake duct have the noise elimination effect of broadband, thereby eliminates the noise that this air intake duct produced. The resonant cavity is omitted from being sleeved on the outer surface of the air inlet guide pipe to eliminate noise, so that the production cost is reduced.

Preferably, the air inlet duct comprises a duct upper sheet and a duct lower sheet which are fixedly connected, and at least one of the duct upper sheet and the duct lower sheet is provided with the silencing structure.

Preferably, the upper pipe sheet and the lower pipe sheet are both provided with silencing structures, and the two silencing structures are arranged oppositely.

Preferably, a connecting pipe is installed at one end of the upper pipe piece and one end of the lower pipe piece, first buckles are arranged at the one ends of the upper pipe piece and the lower pipe piece, first clamping grooves are arranged at two sides of the connecting pipe, and the first buckles are clamped in the first clamping grooves.

Preferably, the two side walls of the upper duct sheet and the lower duct sheet extend out of the welding part towards the outer side horizontally, and the upper duct sheet and the lower duct sheet are fixedly connected together through welding.

Preferably, the cross sections of the upper duct piece and the lower duct piece are both U-shaped.

Preferably, the air inlet duct is made of a PET material.

Another object of the present invention is to provide an air cleaner assembly, which includes an air cleaner and an air inlet duct, wherein the air inlet duct is connected to an air inlet of the air cleaner.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural view of an intake duct according to a first embodiment of the present invention;

fig. 2 is a schematic front view of a catheter upper plate according to a first embodiment of the present invention;

fig. 3 is a schematic back structural view of a catheter upper plate according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a connecting pipe according to a first embodiment of the present invention.

Description of the main element symbols:

the following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, an intake duct according to a first embodiment of the present invention includes: rib 10, pipe upper segment 20, pipe lower segment 30, connecting pipe 40.

Wherein: be equipped with amortization structure on this air inlet duct, amortization structure includes a plurality of ribs 10, and a plurality of ribs 10 are criss-cross connection each other, and rib 10 forms a recess 11 on air inlet duct's inner wall, and rib 10 forms a arch 12 on air inlet duct's outer wall, communicates each other between the recess 11 and forms a amortization cavity.

In this embodiment, as shown in fig. 1 to 3, seven ribs 10 are provided, wherein six ribs 10 are sequentially arranged at equal intervals along an axis direction perpendicular to the side wall of the air intake duct, the remaining rib 10 sequentially penetrates through the six ribs 10 along the axis direction of the side wall of the air intake duct, the six ribs 10 are connected into a whole, each rib 10 forms a groove 11 on the inner wall of the air intake duct, and the grooves 11 are sequentially communicated with each other to form a sound deadening cavity. In order to enable the silencing cavity to meet the broadband silencing effect, the lengths of the ribs 10 perpendicular to the axes of the side walls of the air inlet guide pipe are sequentially increased from left to right, so that the air inlet guide pipe can meet the wider silencing frequency band and has a better silencing effect. In this embodiment, it should be noted that the air intake duct further includes a duct upper sheet 20 and a duct lower sheet 30 fixedly connected, and in practical implementation, at least one of the duct upper sheet 20 and the duct lower sheet 30 is provided with a sound attenuation structure. In other cases, the duct upper sheet 20 and the duct lower sheet 30 may be provided with sound deadening structures, and the two sound deadening structures are disposed opposite to each other. Are within the scope of the present embodiment.

In this embodiment, in order to mount the intake duct on the air cleaner, a connection pipe 40 is mounted at one end of the duct upper sheet 20 and the duct lower sheet 30, and in order to fixedly mount the duct upper sheet 20, the duct lower sheet 30 and the connection pipe 40 together, first fasteners 50 are respectively disposed at one end of the duct upper sheet 20 and one end of the duct lower sheet 30, and first locking grooves 60 are respectively disposed at both sides of the connection pipe 40, and the first fasteners 50 are locked in the first locking grooves 60. Thereby clamping and fixing the connecting tube 40 at one end of the upper duct piece 20 and the lower duct piece 30. In order to fixedly mount the duct upper plate 20 and the duct lower plate 30 together, the welding portion 70 is extended horizontally from both side walls of the duct upper plate 20 and the duct lower plate 30 to the outside, and the duct upper plate 20 and the duct lower plate 30 are fixedly connected together by welding. As shown in fig. 2 to 3, the welding portion 70 has a sheet-like structure in which both side walls of the upper duct sheet 20 and the lower duct sheet 30 extend horizontally outward, and the welding surface of the welding portion 70 has a flat structure for facilitating welding. In this embodiment, the duct upper sheet 20 and the duct lower sheet 30 are both U-shaped in cross section for easy installation. And the air inlet guide pipe is made of PET material. By utilizing the characteristics of the material, the air inlet guide pipe is made into different special-shaped structures to meet the requirements of use in different arrangement spaces.

A second embodiment of the utility model provides an air cleaner assembly, this air cleaner assembly include air cleaner, still include above the admission pipe, this admission pipe is connected with this air cleaner's air inlet.

When the noise reduction device is specifically implemented, the plurality of ribs 10 are arranged on the side wall of the air inlet guide pipe, the plurality of ribs 10 are connected with each other in a criss-cross mode, the plurality of ribs 10 form the plurality of grooves 11 on the inner wall of the air inlet guide pipe, the plurality of grooves 11 are communicated with each other to form the noise reduction cavity, the volume weight of the sound absorption pipeline inside the air inlet guide pipe can be increased through the noise reduction cavity, the air inlet guide pipe is enabled to have a broadband noise reduction effect, and therefore noise generated by the air inlet guide pipe is eliminated. The resonant cavity is omitted from being sleeved on the outer surface of the air inlet guide pipe to eliminate noise, so that the production cost is reduced. The air inlet guide pipe belongs to a resistive silencer and is made of porous sound absorption materials, when sound waves pass through a pipeline paved with the sound absorption materials, the sound waves excite air molecules in a plurality of pores in the porous materials to vibrate, and due to the action of resistance and viscosity, a part of sound energy is converted into heat energy to be dissipated, so that the aim of silencing is achieved.

It should be noted that the above implementation process is only for illustrating the applicability of the present application, but this does not represent that the intake duct of the present application has only the above-mentioned implementation flow, and on the contrary, the intake duct of the present application can be incorporated into the feasible embodiments of the present application as long as the intake duct of the present application can be implemented.

To sum up, the utility model discloses air inlet duct among the above-mentioned embodiment is through being provided with a plurality of ribs 10 on air inlet duct's lateral wall to a plurality of ribs 10 vertically and horizontally staggered interconnect are in the same place, a plurality of ribs 10 form a plurality of recesses 11 on air inlet duct's inner wall, communicate each other between a plurality of recesses 11 and form a amortization cavity, this amortization cavity can increase the inside unit weight who inhales the sound pipeline of this air inlet duct, make this air inlet duct have the noise cancelling effect of broadband, thereby the noise that this air inlet duct produced has been eliminated. The resonant cavity is omitted from being sleeved on the outer surface of the air inlet guide pipe to eliminate noise, so that the production cost is reduced. The air inlet guide pipe belongs to a resistive silencer and is made of porous sound absorption materials, when sound waves pass through a pipeline paved with the sound absorption materials, the sound waves excite air molecules in a plurality of pores in the porous materials to vibrate, and due to the action of resistance and viscosity, a part of sound energy is converted into heat energy to be dissipated, so that the aim of silencing is achieved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (7)

1. An air intake duct characterized by: be equipped with amortization structure on the pipe of admitting air, amortization structure includes a plurality of ribs, and is a plurality of the mutual vertically and horizontally staggered connection of rib, the rib is in form a recess on the inner wall of pipe of admitting air, just the rib is in form a arch on the outer wall of pipe of admitting air, communicate each other between the recess and form a amortization cavity.

2. The intake conduit of claim 1, wherein: the air inlet duct comprises a duct upper sheet and a duct lower sheet which are fixedly connected, and at least one of the duct upper sheet and the duct lower sheet is provided with the silencing structure.

3. The intake conduit of claim 2, wherein: the upper pipe sheet and the lower pipe sheet are both provided with silencing structures, and the two silencing structures are arranged oppositely.

4. The intake conduit of claim 2, wherein: the connecting pipe is installed on the pipe upper segment with the one end of pipe lower segment all is provided with first buckle, the both sides of connecting pipe all are provided with first draw-in groove, first buckle joint is in the first draw-in groove.

5. The intake conduit of claim 4, wherein: the two side walls of the upper duct piece and the lower duct piece extend out of the welding part towards the outer side horizontally, and the upper duct piece and the lower duct piece are fixedly connected together through welding.

6. The intake conduit of claim 5, wherein: the sections of the upper guide pipe sheet and the lower guide pipe sheet are U-shaped.

7. The intake conduit of claim 1, wherein: the air inlet guide pipe is made of PET materials.

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