CN212003393U

CN212003393U - Air filter air inlet pipe assembly, resonator and air filter assembly

Info

Publication number: CN212003393U
Application number: CN201922425012.XU
Authority: CN
Inventors: 赵姗姗
Original assignee: Mann and Hummel GmbH
Current assignee: Mann and Hummel GmbH
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-11-24
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses an air filter air inlet pipe assembly, which comprises an air filter air inlet pipe and a resonant cavity cover connected and arranged outside the air filter air inlet pipe, wherein a resonant cavity is formed between the resonant cavity cover and a pipe body of the air filter air inlet pipe; the air filter inlet tube assembly includes a conduit positioned within the resonator chamber and communicating the resonator chamber with the air filter inlet tube. The utility model discloses a resonator and empty assembly of straining. The guide pipe is integrated in the resonator from an exposed structure, so that the guide pipe does not need to bear the weight of the resonator, the stress generated by the guide pipe when a vehicle runs and the strength requirement on the guide pipe are reduced, and the risk of part failure is reduced. And the resonator is easier to arrange in the limited engine compartment space, and the degree of freedom of arrangement of the resonator and the limited space utilization rate of the engine compartment are improved. Meanwhile, the cavity of the resonant cavity does not need to be designed into a traditional spherical shape, an oval shape or a cube shape with a chamfer angle, and can be made into an attractive appearance with design feeling according to the requirement.

Description

Air filter air inlet pipe assembly, resonator and air filter assembly

Technical Field

The utility model relates to an empty intake pipe subassembly of straining, its resonance intracavity integration is provided with the pipe of the empty intake pipe of straining of intercommunication and resonance chamber. The utility model discloses still relate to a resonator, it has the pipe of integrated setting in the cavity of resonant cavity equally to the pipe is the broken line return bend. The utility model discloses still relate to one kind and include the empty assembly of straining of air inlet pipe subassembly is strained to the air.

Background

Currently, in order to obtain a certain noise elimination and reduction function of an air filter system for a vehicle, a resonant structure is generally arranged in the air filter system, for example, a resonator (or resonator) is arranged outside an air inlet pipe of the air filter. Many vehicle air filter intake duct resonators mostly use resonators formed by Helmholtz resonance (Helmholtz resonance), specifically, the resonator is connected with the air filter intake duct through a conduit, one end of the conduit is connected with the air filter intake duct, the other end of the conduit is connected with the Helmholtz resonance cavity, the Helmholtz resonance cavity and the conduit are usually integrally formed, and the conduit and the air filter intake duct are connected and sealed through welding or buckling. The problems with this prior art solution are: firstly, the diameter of the conduit is small compared to the volume of the helmholtz resonator, and the strength is low; in the running process of the whole vehicle, the engine can generate continuous vibration, the vehicle can be subjected to vibration from the road surface when running, the guide pipe needs to bear the vibration from the two aspects, and certain requirements are provided for the strength of the guide pipe and the connecting structure (welding or clamping) of the guide pipe; secondly, the conduit is a part for connecting the air filter air inlet pipe and the Helmholtz resonant cavity, the structure of the conduit is exposed, for low-frequency noise of the engine, acoustic calculation and simulation are carried out, the low-frequency noise can be eliminated or reduced by a very long conduit, and the size of the Helmholtz resonator structure of the whole air filter air inlet pipe has to be increased due to the exposed conduit, so that the air filter air inlet pipe is difficult to arrange in a limited engine cabin space.

SUMMERY OF THE UTILITY MODEL

Based on the above problem, an object of the utility model is to provide an air filter intake pipe subassembly, it can make the pipe integration that is used for connecting air inlet component and resonant cavity set up inside the resonator, so make the pipe no longer need bear the weight of resonator, the stress that the pipe takes place when having reduced the vehicle and traveling has reduced the intensity requirement to the pipe in other words to the risk that the part became invalid has been reduced. In addition, since the duct is not exposed, the resonator does not have to be disposed only on one side of the air intake member for inflow of gas, so that the resonance chamber can be disposed around the air intake member, which improves the degree of freedom of the resonator and improves the space utilization efficiency of the limited engine compartment. Another object of the utility model is to provide a resonator structure, its pipe integration sets up inside the resonant cavity to the pipe is the broken line return bend, because the length of pipe is buckled for inside it can be arranged the cavity of resonant cavity easily, compare in the pipe of current pure straight tube structure, the required installation space of saving resonant cavity that can be great, thereby make the resonator arrange more easily in the limited engine cabin space. Another object of the present invention is to provide an air filter assembly including the air filter inlet tube assembly.

The utility model discloses an air filter air inlet pipe assembly, which comprises an air filter air inlet pipe and a resonant cavity cover connected and arranged outside the air filter air inlet pipe, wherein a resonant cavity is arranged between the resonant cavity cover and the air filter air inlet pipe; the air filter intake duct assembly also includes a conduit located within the resonator chamber and communicating the resonator chamber with the air filter intake duct.

Further, the resonant cavity cover is connected with the resonant cavity wall arranged on the outer wall of the tube body of the air filtering air inlet tube in a matched mode to form a resonant cavity.

Furthermore, the resonant cavity cover is directly connected to the outer wall of the pipe body of the air filter air inlet pipe to form a resonant cavity.

Further, the conduit is a straight pipe, a bent pipe or a bent pipe with a broken line.

Furthermore, the guide pipe is a bent pipe with a bent line of more than or equal to 90 degrees.

Further, the pipe and the pipe body of the air filtering air inlet pipe are integrally formed.

Furthermore, a connecting pipe which extends into the resonant cavity and is used for being connected with the conduit is integrally formed on the pipe body of the air filtering air inlet pipe.

Furthermore, the air inlet end of the guide pipe is connected with the air outlet end of the connecting pipe in a welding mode.

Further, the resonant cavity cover is connected with the outer wall of the pipe body of the air filtering air inlet pipe through friction welding.

Further, the body of air filter intake pipe includes the body upper segment and forms the body lower segment of body with body upper segment interconnect, and the setting is on the body upper segment in the connection of resonant cavity lid.

Further, the resonant cavity cover is arranged along the pipe body trend of the air filtering air inlet pipe, and the internal space of the resonant cavity is gradually widened along the air outlet direction of the air filtering air inlet pipe.

The utility model also discloses a resonator, including the cavity with arrange the pipe in the cavity in, the cavity between cavity and the pipe forms the resonant cavity, the pipe is the broken line return bend with resonant cavity and outside intercommunication, pipe.

Furthermore, the guide pipe is a fold line bent pipe with an angle of more than or equal to 90 degrees.

Further, the chamber of the resonance cavity becomes gradually larger in the length direction of the cavity.

Further, the cavity comprises a bottom plate and a resonant cavity cover connected with the bottom plate, and the guide pipe is connected and arranged on the bottom plate.

Furthermore, a connecting pipe which opens into the resonant cavity is integrally formed on the bottom plate, and the air inlet end of the conduit is connected with the air outlet end of the connecting pipe in a welding manner.

Further, the bottom plate can be a portion of the body of the air filter inlet tube.

The utility model also discloses an empty assembly of straining, it includes as before empty air filter intake duct subassembly and the empty filter of the end intercommunication of giving vent to anger of straining the intake pipe with this empty air filter intake duct subassembly.

Has the advantages that: the utility model discloses an air filter air inlet pipe subassembly, the pipe all changes integrated the setting into inside the resonator from exposing the structure, so make the pipe no longer need bear the weight of resonator, the stress that the pipe takes place when having reduced the vehicle and having gone has reduced the intensity requirement to the pipe in other words to reduce the risk that the part became invalid, be difficult to the inefficacy such as fracture, fracture. In addition, the guide pipe and the air inlet pipeline are integrated inside the resonator, so that the appearance size of the whole resonator is not directly influenced, the resonator is easier to arrange in a limited engine cabin space, and the appearance degree is improved because the guide pipe and the air inlet pipeline are integrated inside the resonator and no exposed guide pipe exists. The resonator is integrated with the air inlet pipeline (or the air filter air inlet pipe component), the structure of the traditional air filter air inlet pipe component-conduit-resonant cavity is not needed, and the cavity of the resonant cavity is not needed to be designed into the traditional spherical shape, the oval shape or the cubic shape with the chamfer angle, and the aesthetic appearance with the design feeling can be made according to the requirement.

The utility model discloses a resonator, except having the above-mentioned because the pipe integration sets up in the inside advantage that has of resonator, because the pipe design is the broken line return bend for the length of pipe is buckled, can hold the resonant cavity in the size more easily.

Drawings

The technical solution of the present invention will be explained in more detail based on the specific embodiments shown in the drawings. Wherein reference is made to the accompanying drawings in which:

fig. 1 shows an isometric perspective view of an embodiment of an air filter inlet tube assembly of the present invention;

FIG. 2 illustrates a front view of the air filter intake duct assembly of the embodiment of FIG. 1;

FIG. 3 illustrates a top view of an embodiment of the air intake filter assembly of the embodiment of FIG. 1;

FIG. 4 illustrates a cross-sectional view of the air filter inlet duct assembly of the embodiment of FIG. 1;

FIG. 5 is an exploded schematic view of the air filter inlet duct assembly of the embodiment of FIG. 1;

fig. 6 shows a cross-sectional view of another embodiment of an air filter intake duct assembly of the present invention;

figure 7 shows a cross-sectional view of a resonator in the present invention;

fig. 8 shows a cross-sectional view of a prior art air filter intake duct assembly provided with helmholtz resonators.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the embodiments shown in the drawings of the present invention. In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Fig. 1 shows an axial perspective view of an embodiment of the air filter intake duct assembly of the present invention, fig. 2 shows a front view of the air filter intake duct assembly of the embodiment shown in fig. 1, and fig. 3 shows a top view of the air filter intake duct assembly of the embodiment shown in fig. 1. As can be seen from fig. 1-3, the air intake pipe assembly 1 of the present invention includes an air intake pipe and a resonant cavity cover 30 connected to the outside of the air intake pipe, wherein the resonant cavity cover 30 is a structure including a top wall and a circumferential pipe body, which can also be seen from fig. 4 and 5; after the resonant cavity cover 30 is covered and connected on the outer side of the air filtering air inlet pipe, a cavity is formed between the resonant cavity cover 30 and the pipe body of the air filtering air inlet pipe, the cavity is formed by the top wall and the side wall of the resonant cavity cover 30 and the pipe body of the air filtering air inlet pipe, and the cavity forms a resonant cavity 200 for attenuating noise of the air filtering air inlet pipe from an engine. In an alternative embodiment, the cover 30 is welded or snap-fit to the air inlet filter, preferably by friction welding. And, as shown in fig. 1 to 3, the tube body of the air inlet filter includes an upper tube body sheet 10 and a lower tube body sheet 20 connected with the upper tube body sheet 10 to form the tube body, and a resonator cap 30 is welded to the upper tube body sheet 10, as can also be seen from fig. 4 and 5. The upper tube piece 10 and the lower tube piece 20 are assembled together by welding or clamping to form an air inlet duct 100.

In this embodiment, the cavity cover 30 is directly connected to the upper filter tube 10 by welding, and the cavity of the helmholtz resonator 2 is formed by using a vibration friction welding process in this embodiment.

Fig. 4 is a sectional view illustrating the air filter inlet duct assembly according to the embodiment of fig. 1, and fig. 5 is an exploded view illustrating the air filter inlet duct assembly according to the embodiment of fig. 1. As can be seen in fig. 4 and 5, the conduit 40 of the present invention is located within the resonance chamber 200 and communicates the resonance chamber 200 with the air intake. As shown in the figure, the duct 40 is a bent line bent pipe bent at 90 degrees, and the duct 40 is a bent line bent pipe bent toward the air outlet direction of the air filter inlet pipe. In other embodiments, the conduit 40 can also be a straight tube or other angled or wavy bend, such as a bend having an angle greater than 90 °; in addition, in the case that the duct 40 is a straight pipe, it is preferable that the duct 40 is integrally formed with the upper sheet 10 of the air filtering pipe body, so that a die for the duct 40 can be omitted, an assembling process can be performed, and cost is optimized. As shown in fig. 4 and 5, the conduit 40 is entirely located in the cavity formed by connecting the upper filter tube body sheet 10 to the resonator cover 30, wherein the resonator 200 is formed by the cavity surrounded by the upper filter tube body sheet 10 and the resonator cover 30, but does not include the conduit 40 and the inner space of the conduit 40. The helmholtz resonator 200 and the conduit 40 together form a helmholtz resonator 2.

In addition, as shown in fig. 4 and 5, the air filter inlet tube is integrally provided with a connecting tube 50 extending into the resonance chamber 200 and connected to the conduit 40, and the inlet end 41 of the conduit 40 is connected to the outlet end of the connecting tube 50. The end of the conduit 40 communicating with the resonance chamber 200 is the end 42 of the conduit resonance chamber 200, which is an opening structure with a specific inner diameter, the end of the conduit 40 connecting with the connecting pipe 50 is the air inlet end of the conduit 40, which is an opening structure with a specific inner diameter, and the connecting pipe 50 is the extension part of the air inlet pipe 100 of the conduit 40 leading to the air filter inlet pipe, which has an opening 51 at the end of the air inlet pipe 100. Typically, the inner diameters of the opening of the conduit resonance chamber 200 end 42, the conduit 40 air inlet end and the connecting tube 50 on the air inlet conduit 100 are uniform. Preferably, the guide tube 40 and the connecting tube 50 are connected at the connecting structure 43 by welding, preferably vibration friction welding, and the guide tube 40 is welded to the upper piece 10 of the air filtering tube body by a welding process, so that the problem that the bent guide tube 40 cannot be integrally formed with the upper piece 10 of the air filtering tube body is solved. By designing a connection pipe 50 as an extension pipe on the upper sheet 10 of the pipe body, it plays a role of accommodating the welded structure and connecting the guide pipe 40 and the air intake duct 100.

In addition, as shown in fig. 4, the resonator cover 30 is disposed along the tube of the air inlet filter, and the inner space of the resonator 200 is gradually widened along the outlet direction of the air inlet filter. As shown in the drawings, the air filter inlet pipe is a bent pipe with a certain curvature, and the resonant cavity cover 30 includes a top wall with a flat structure and a circumferential pipe body connected with the top wall, so that the gradual widening of the internal space of the resonant cavity 200 means that the distance from the top wall of the resonant cavity cover 30 to the outer side of the upper piece 10 of the air filter pipe body is gradually reduced, which enables the chamber of the resonant cavity 200 to effectively utilize the trend of the air filter inlet pipe to ensure that the chamber of the resonant cavity 200 has a sufficient space size, and better ensures that a reasonable structural layout is formed between the chamber and the air filter inlet pipe, so that the air filter inlet pipe with the chamber of the resonant cavity 200 is more easily arranged in the engine compartment space.

The utility model discloses air filter intake pipe subassembly 1 of above embodiment can be assembled together through following process: the guide pipe 40 is connected to the upper piece 10 of the air filter pipe body through a welding or clamping process, a rotary friction welding mode is adopted in the embodiment, the resonant cavity cover 30 is connected to the upper piece 10 of the air filter pipe body through a welding mode, a vibration friction welding mode is adopted in the embodiment, a cavity of the Helmholtz resonator 2 is formed, and the guide pipe 40 is integrally located inside the Helmholtz resonator 2.

In addition, the present invention also discloses another embodiment of the air filter intake pipe assembly, as shown in fig. 6, the air filter intake pipe assembly of this embodiment also includes an air filter intake pipe, a resonant cavity cover 30, and a conduit 40 located in the resonant cavity 200 and communicating the resonant cavity 200 with the air filter intake pipe. The only difference from the above-mentioned embodiment shown in fig. 1 to 5 is that in the air filter inlet pipe assembly of the embodiment shown in fig. 6, the resonance chamber cover 30 forms the resonance chamber 200 by being fittingly connected with the resonance chamber wall 60 provided on the outer wall of the body of the air filter inlet pipe, that is, the resonance chamber wall 60 for forming the circumferential side wall of the resonance chamber is integrally formed on the outer wall of the body of the air filter inlet pipe, for example, on the outer side of the upper filter body 10, and the resonance chamber cover 30 is connected with the resonance chamber cover by welding or clipping, in which case, the resonance chamber 200 is enclosed by the resonance chamber cover 30, the resonance chamber wall 60 and the outer side of the upper filter body 10. In addition to the resonant chamber wall structure features, the remaining features of the embodiments of fig. 1-5 described above may also be applied to the air filter inlet tube assembly embodiment of fig. 6.

The utility model discloses air inlet pipe subassembly is strained to sky of above-mentioned embodiment, pipe 40 changes integrated the setting inside the resonator from exposing the structure, and not be connected to helmholtz resonance chamber 200 casing outside like traditional structure on, so make pipe 40 no longer need bear the weight of resonator, the stress that pipe 40 took place when having reduced the vehicle and traveling, reduced the intensity requirement to pipe 40 in other words to reduced the risk that the part became invalid, be difficult to take place to split, inefficacy such as fracture.

Also, in this air intake filter, since the duct 40 is integrally provided inside the resonance chamber 200, the length of the duct 40 no longer directly affects the overall dimensions of the resonator, making it easier to arrange the resonator in a limited engine compartment space.

In addition, in this air intake filter, because the duct 40 is integrally provided inside the resonator, there is no duct 40 exposed, and the aesthetic appearance is improved. The resonator and the air filter intake pipe are integrated, the structure of the traditional intake pipe 100, the duct 40 and the resonant cavity 200 shown in fig. 8 is not needed, and the cavity of the resonant cavity 200 is not needed to be designed into a traditional spherical shape, an oval shape or a cube shape with chamfers, and can be designed into an aesthetic modeling feature 300 with design feeling as shown in fig. 1 and fig. 3 according to needs, so that the engine compartment is beautified.

The utility model also discloses a resonator, as shown in fig. 7, it includes that inside forms the cavity of resonant cavity 200 and arranges the pipe 40 that is used for resonant cavity 200 and outside intercommunication in the cavity in, and pipe 40 is the broken line return bend. The conduit 40 is a bent line bend at a 90 angle. In a preferred embodiment, the cavity of the resonance chamber 200 becomes larger along the length direction of the cavity, the cavity comprises a bottom plate and a resonance chamber cover 30 connected to the bottom plate, the conduit 40 is connected to the bottom plate, the bottom plate is integrally provided with a connecting pipe 50 which opens into the resonance chamber 200, and the air inlet end of the conduit 40 is welded to the air outlet end of the connecting pipe 50. In a preferred embodiment, the base plate can be part of the tubular body of the air inlet filter, i.e. the cavity is formed jointly by the tubular body of the air inlet filter and the resonator cover 30 connected thereto. The pipe body is integrally formed with a connecting pipe 50 extending into the resonant cavity 200, and the air inlet end of the conduit 40 is welded to the air outlet end of the connecting pipe 50.

The utility model discloses a resonant cavity 200 structure, except having foretell place the interior all advantages that have of resonant cavity 200 in with pipe 40, its owing to design into the broken line return bend with pipe 40, the length of pipe 40 is buckled for it can be by easy inside arranging resonant cavity 200, thereby makes helmholtz resonator 2 arrange more easily in the limited engine compartment space.

The utility model also discloses an empty assembly of straining, it includes as before empty air filter intake duct subassembly and the empty filter of the end intercommunication of giving vent to anger of straining the intake pipe with this empty air filter intake duct subassembly. Air enters the air filter through the air filter air inlet pipe.

It should be noted that the features of the different exemplary embodiments of the invention may be combined with each other in any way without departing from the scope of the invention, as long as these features are not mutually exclusive.

Claims

1. The air filter air inlet pipe assembly is characterized by comprising an air filter air inlet pipe and a resonant cavity cover (30) which is connected and arranged on the outer side of the air filter air inlet pipe, wherein a resonant cavity (200) is arranged between the resonant cavity cover (30) and the air filter air inlet pipe; the air filter intake duct assembly also includes a conduit (40) located within the resonance chamber (200) and communicating the resonance chamber (200) with the air filter intake duct.

2. The air filter intake duct assembly according to claim 1, wherein the resonance chamber cover (30) is fittingly coupled to a resonance chamber wall (60) provided on an outer wall of a tubular body of the air filter intake duct to form the resonance chamber (200).

3. The air filter intake duct assembly according to claim 1, wherein the resonance chamber cover (30) is directly connected to a tubular outer wall of the air filter intake duct to form the resonance chamber (200).

4. The air filter inlet duct assembly according to claim 1, wherein the conduit (40) is a straight tube, an elbow tube, or a dog-leg elbow tube.

5. The air filter inlet duct assembly according to claim 1, wherein the duct (40) is a bent line bend bent at 90 ° or more.

6. The air filter intake duct assembly according to claim 1, wherein the duct (40) is integrally formed with a tubular body of the air filter intake duct.

7. The air filter inlet duct assembly according to claim 1, wherein the body of the air filter inlet duct is integrally formed with a connecting tube (50) extending into the resonance chamber (200) and adapted to be connected to a conduit (40).

8. The air filter inlet duct assembly according to claim 7, wherein an inlet end of the guide duct (40) is welded to an outlet end of the connection pipe (50).

9. The air filter intake duct assembly according to claim 3, wherein the resonator cover (30) is coupled to the outer wall of the body of the air filter intake duct by friction welding.

10. The air filter inlet duct assembly according to any one of claims 1 to 9, wherein the body of the air filter inlet duct includes an upper body piece (10) and a lower body piece (20) interconnected with the upper body piece (10) to form a body, and the resonator cap (30) is connectively disposed on the upper body piece (10).

11. The air filter inlet duct assembly according to any one of claims 1 to 9, wherein the resonator cover (30) is disposed along a tubular body of the air filter inlet duct, and an inner space of the resonator (200) is gradually widened in an air outlet direction of the air filter inlet duct.

12. A resonator, characterized in that it comprises a cavity and a conduit (40) placed inside said cavity, the cavity between said cavity and said conduit (40) forming a resonance chamber (200), said conduit (40) communicating the resonance chamber (200) with the outside, said conduit (40) being a meander line bend.

13. A resonator according to claim 12, characterized in that the conduit (40) is a bent pipe with a broken line at an angle equal to or greater than 90 °.

14. A resonator according to claim 12, characterized in that the chambers of the resonance cavity (200) are gradually larger in the length direction of the cavity.

15. A resonator according to claim 12, characterized in that the cavity comprises a base plate and a cavity cover (30) connected to the base plate, the duct (40) being arranged in connection to the base plate.

16. The resonator of claim 15, characterized in that the base plate is integrally provided with a connecting tube (50) opening into the resonance chamber (200), and the inlet end of the conduit (40) is welded to the outlet end of the connecting tube (50).

17. The resonator of claim 15, wherein the base plate can be a portion of a tube of an air intake filter.

18. An air filter assembly comprising the air filter intake duct assembly of any one of claims 1-11 and an air filter in communication with an air outlet end of the air filter intake duct assembly.