CN220415546U - Air filter device and motorcycle - Google Patents

Abstract

The application relates to an air filter device and motorcycle, and air filter device includes: the shell assembly is provided with a filter cavity; the isolating piece is connected with the inner wall of the filter cavity and divides the filter cavity into an inner cavity, a first pressure stabilizing cavity and a second pressure stabilizing cavity which are not communicated with each other; the first air outlet pipe and the second air outlet pipe are respectively communicated with the inner cavity; the first pressure stabilizing cavity is communicated with the first air outlet pipe through the first pressure stabilizing piece; the second pressure stabilizing cavity is communicated with the second air outlet pipe through the second pressure stabilizing piece. Because the isolator is in the inside of casing subassembly, the integrated level is higher, make full use of casing subassembly's inner space, be favorable to improving compactibility, guarantee whole car arrangement and the outward appearance integrality of motorcycle. And parts are not required to be added, so that the control of the production cost is facilitated.

Description

Air filter device and motorcycle

Technical Field

The application relates to the technical field of air filters of motorcycles, in particular to an air filter device and a motorcycle.

Background

The engine part of the two-wheeled motorcycle and other vehicles mainly comprises an engine and an air inlet system, and specifically comprises an engine air inlet pipe, a throttle body, an air filter air outlet pipe, an air filter body, a filter element and an air filter air inlet pipe. During an intake stroke in an engine, outside air enters from an air cleaner intake pipe into a cylinder. For an engine intake system, it is required that the intake resistance is small, the gas flow is smooth, and the suction noise is small. The air filter not only plays a role in filtering air in an air inlet system, but also is an important part for ensuring the work performance of the engine and reducing the air suction noise.

For a multi-cylinder engine, because the inlets of the air filter air outlet pipes corresponding to different air cylinders are all in the same air filter clean cavity, and the inlet times of the two air cylinders are in sequence, the inlet efficiency of the two air filter air outlet pipes can be mutually influenced due to the existence of pressure wave phenomena, and the durability of the engine can be influenced. In the prior art, an independent pressure stabilizing cavity part which is independently designed is adopted to be installed and fastened on an air outlet pipe, however, in the scheme, each cylinder needs an independent pressure stabilizing cavity part, the number of parts can be obviously increased, the production cost of the whole automobile can be increased, and the production goal of cost reduction is not met. Meanwhile, the independent pressure stabilizing cavity scheme needs to occupy additional whole vehicle space, and great inconvenience is brought to whole arrangement of the whole vehicle.

Disclosure of Invention

Accordingly, there is a need for an air cleaner device and a motorcycle that can effectively reduce the production cost and improve the structural compactness of the air cleaner.

The technical scheme is as follows: an air filter device, the air filter device comprising: the shell assembly is provided with a filter cavity; the isolating piece is connected with the inner wall of the filter cavity and divides the filter cavity into an inner cavity, a first pressure stabilizing cavity and a second pressure stabilizing cavity which are not communicated with each other; the first air outlet pipe and the second air outlet pipe are respectively communicated with the inner cavity; the first pressure stabilizing piece is connected between the cavity wall of the first pressure stabilizing cavity and the pipe wall of the first air outlet pipe, and the first pressure stabilizing cavity is communicated with the first air outlet pipe through the first pressure stabilizing piece; the second pressure stabilizing piece is connected between the cavity wall of the second pressure stabilizing cavity and the pipe wall of the second air outlet pipe, and the second pressure stabilizing cavity is communicated with the second air outlet pipe through the second pressure stabilizing piece.

According to the air filter device, in the installation process, the isolating piece is arranged in the shell assembly, the first pressure stabilizing cavity and the second pressure stabilizing cavity which are not communicated with the inner cavity are isolated from the isolating cavity, the first air outlet pipe and the second air outlet pipe are communicated with the shell assembly, the inner cavity can respectively air out of the two air cylinders, the first pressure stabilizing piece is arranged between the first pressure stabilizing cavity and the pipe wall of the first air outlet pipe, the second pressure stabilizing piece is arranged between the second pressure stabilizing cavity and the pipe wall of the second air outlet pipe, in the working process, the pressure fluctuation on the first air outlet pipe and the second air outlet pipe can be relieved by the first pressure stabilizing cavity and the second pressure stabilizing cavity, the degree of mutual influence of the air cylinders in the air inlet process is reduced, and therefore the air inlet non-uniformity of the two air cylinders is improved, and the acting performance of the two air cylinders becomes closer. Because the isolator is in the inside of casing subassembly, the integrated level is higher, make full use of casing subassembly's inner space, be favorable to improving compactibility, guarantee whole car arrangement and the outward appearance integrality of motorcycle. And parts are not required to be added, so that the control of the production cost is facilitated.

In one embodiment, the housing assembly includes an upper housing and a lower housing, the upper housing and the lower housing are detachably connected and jointly enclose the filter cavity, the spacer is connected with the upper housing and/or the inner wall of the lower housing, the first air outlet pipe is connected with the upper housing or the lower housing, the second air outlet pipe is connected with the upper housing or the lower housing, the first pressure stabilizer is connected with the upper housing or the lower housing, and the second pressure stabilizer is connected with the upper housing or the lower housing.

In one embodiment, the spacer comprises a first spacer and a second spacer, the first spacer is connected to the inner wall of the lower housing, the second spacer is connected to the first spacer and the inner wall of the lower housing respectively, the upper housing is provided with a matching groove, the first spacer and the second spacer are in sealing fit with the matching groove, and the upper housing, the lower housing, the first spacer and the second spacer enclose the first voltage stabilizing cavity and the second voltage stabilizing cavity together.

In one embodiment, the lower housing is provided with a first mounting hole and a second mounting hole which are respectively communicated with the inner cavity, the first air outlet pipe is connected with the lower housing through the first mounting hole, and the second air outlet pipe is connected with the lower housing through the second mounting hole.

In one embodiment, the bottom wall of the first voltage stabilizing cavity is provided with a third mounting hole, the bottom wall of the second voltage stabilizing cavity is provided with a fourth mounting hole, the first voltage stabilizing piece and the second voltage stabilizing piece are both located outside the shell component, the first voltage stabilizing piece is connected with the cavity wall of the first voltage stabilizing cavity through the third mounting hole, and the second voltage stabilizing piece is connected with the cavity wall of the second voltage stabilizing cavity through the fourth mounting hole.

In one embodiment, the first voltage stabilizing member comprises a first connecting pipe, the second voltage stabilizing member comprises a second connecting pipe, two opposite ends of the first connecting pipe are respectively communicated with the first voltage stabilizing cavity and the first air outlet pipe, and two opposite ends of the second connecting pipe are respectively communicated with the second voltage stabilizing cavity and the second air outlet pipe.

In one embodiment, a first connection base is arranged on the pipe wall of the first air outlet pipe, the first connection base is communicated with the first air outlet pipe, and the first voltage stabilizer is connected with the first connection base; the pipe wall of the second air outlet pipe is provided with a second connecting base, the second connecting base is communicated with the second air outlet pipe, and the second pressure stabilizing piece is connected with the second connecting base.

In one embodiment, the first air outlet pipe is further provided with a first fastener, and the first voltage stabilizing piece is in fastening fit with the first connecting base through the first fastener; the second air outlet pipe is further provided with a second fastening piece, and the second voltage stabilizing piece is in fastening fit with the second connecting base through the second fastening piece.

In one embodiment, the separator further separates the filter cavity into a third pressure stabilizing cavity, the third pressure stabilizing cavity is not communicated with the first pressure stabilizing cavity, the second pressure stabilizing cavity and the inner cavity, the air filter device further comprises a third air outlet pipe and a third pressure stabilizing piece, the third air outlet pipe is communicated with the inner cavity, the third pressure stabilizing piece is connected between the cavity wall of the third pressure stabilizing cavity and the pipe wall of the third air outlet pipe, and the third pressure stabilizing cavity is communicated with the third air outlet pipe through the third pressure stabilizing piece.

A motorcycle comprising an air filter arrangement as claimed in any one of the preceding claims.

According to the motorcycle, in the installation process, the isolating piece is arranged in the shell assembly, the first pressure stabilizing cavity and the second pressure stabilizing cavity which are not communicated with the inner cavity are isolated from the isolating cavity, the first air outlet pipe and the second air outlet pipe are communicated with the shell assembly, the inner cavity can respectively air out of the two air cylinders, the first pressure stabilizing piece is arranged between the first pressure stabilizing cavity and the pipe wall of the first air outlet pipe, the second pressure stabilizing piece is arranged between the second pressure stabilizing cavity and the pipe wall of the second air outlet pipe, in the working process, the pressure fluctuation on the first air outlet pipe and the second air outlet pipe can be relieved by the first pressure stabilizing cavity and the second pressure stabilizing cavity, the degree of mutual influence of the air cylinders in the air inlet process is reduced, and therefore the air inlet non-uniformity of the two air cylinders is improved, and the acting performance of the two air cylinders becomes closer. Because the isolator is in the inside of casing subassembly, the integrated level is higher, make full use of casing subassembly's inner space, be favorable to improving compactibility, guarantee whole car arrangement and the outward appearance integrality of motorcycle. And parts are not required to be added, so that the control of the production cost is facilitated.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application.

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of an air filter device according to an embodiment.

Fig. 2 is a schematic view of the structure of the inside of the lower housing according to an embodiment.

Fig. 3 is a schematic structural view of the upper housing according to an embodiment.

Fig. 4 is a schematic view of the installation positions of the first voltage stabilizer and the second voltage stabilizer in an embodiment.

Fig. 5 is a schematic structural diagram of a first air outlet pipe and a second air outlet pipe according to an embodiment.

Reference numerals illustrate:

100. an air filter device; 110. a housing assembly; 111. a filter chamber; 112. an upper housing; 113. a lower housing; 1131. a first mounting hole; 1132. a second mounting hole; 114. an inner cavity; 115. a first voltage stabilizing cavity; 1151. a third mounting hole; 116. a second voltage stabilizing cavity; 1161. a fourth mounting hole; 117. a mating groove; 120. a spacer; 121. a first separator; 122. a second separator; 130. a first air outlet pipe; 131. a first connection base; 132. a first fastener; 140. a second air outlet pipe; 141. a second connection base; 142. a second fastener; 150. a first voltage regulator; 160. a second voltage regulator; 170. an air filter cover; 171. a filter element; 172. and an air inlet pipe.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on 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," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, fig. 1 is a schematic diagram illustrating an overall structure of an air filter device 100 according to an embodiment of the present application; an embodiment of the present application provides an air filter device 100, including: the housing assembly 110, the partition 120, the first air outlet pipe 130, the second air outlet pipe 140, the first pressure stabilizer 150 and the second pressure stabilizer 160, and the housing assembly 110 is provided with a filter cavity 111. The partition 120 is connected to the inner wall of the filter cavity 111, the partition 120 partitions the filter cavity 111 into an inner cavity 114, a first pressure stabilizing cavity 115 and a second pressure stabilizing cavity 116, which are not communicated with each other, and the first air outlet pipe 130 and the second air outlet pipe 140 are respectively communicated with the inner cavity 114. The first pressure stabilizing member 150 is connected between the wall of the first pressure stabilizing chamber 115 and the wall of the first air outlet pipe 130, and the first pressure stabilizing chamber 115 is communicated with the first air outlet pipe 130 through the first pressure stabilizing member 150. The second pressure stabilizing member 160 is connected between the wall of the second pressure stabilizing chamber 116 and the wall of the second air outlet pipe 140, and the second pressure stabilizing chamber 116 is communicated with the second air outlet pipe 140 through the second pressure stabilizing member 160.

In the air filter device 100, in the installation process, the spacer 120 is installed in the housing assembly 110, the first pressure stabilizing cavity 115 and the second pressure stabilizing cavity 116 which are not communicated with the inner cavity 114 are isolated from the spacer cavity, after the first air outlet pipe 130 and the second air outlet pipe 140 are communicated with the housing assembly 110, the inner cavity 114 can respectively air out two cylinders, the first pressure stabilizing part 150 is installed between the first pressure stabilizing cavity 115 and the pipe wall of the first air outlet pipe 130, the second pressure stabilizing part 160 is installed between the second pressure stabilizing cavity 116 and the pipe wall of the second air outlet pipe 140, in the working process, the pressure fluctuation on the first air outlet pipe 130 and the second air outlet pipe 140 can be relieved by the first pressure stabilizing cavity 115 and the second pressure stabilizing cavity 116, the degree of the mutual influence of the cylinders in the air inlet process is reduced, and thus the air inlet non-uniformity of the two cylinders is improved, and the work performance of the two cylinders becomes closer. Because the spacer 120 is in the interior of the housing assembly 110, the integration level is high, the interior space of the housing assembly 110 is fully utilized, the structural compactness is improved, and the whole vehicle arrangement and the appearance integrity of the motorcycle are ensured. And parts are not required to be added, so that the control of the production cost is facilitated. In addition, the pressure stabilizing cavity scheme is also a Helmholtz resonator scheme, and can reduce noise and eliminate noise for the inhalation sound in a specific frequency range.

Referring to fig. 2 and 3, fig. 2 is a schematic view illustrating an inner structure of the lower housing 113 according to an embodiment of the present application; FIG. 3 shows a schematic structural view of the upper housing 112 according to one embodiment of the present application; in one embodiment, the housing assembly 110 includes an upper housing 112 and a lower housing 113. The upper casing 112 and the lower casing 113 are detachably connected and jointly enclose a filter cavity 111, the partition 120 is connected with the inner wall of the upper casing 112 and/or the lower casing 113, the first air outlet pipe 130 is connected with the upper casing 112 or the lower casing 113, the second air outlet pipe 140 is connected with the upper casing 112 or the lower casing 113, the first pressure stabilizer 150 is connected with the upper casing 112 or the lower casing 113, and the second pressure stabilizer 160 is connected with the upper casing 112 or the lower casing 113. Thus, the assembly is convenient, the production cost is low, the maintenance is simple, and when the first voltage stabilizing cavity 115 and the second voltage stabilizing cavity 116 need to be maintained, the upper shell 112 and the lower shell 113 are detached, thereby being beneficial to improving the maintenance convenience.

It should be noted that, the connection between the spacer 120 and the inner wall of the upper case 112 and/or the lower case 113 should be understood that the spacer 120 may be disposed only on the upper case 112, only on the lower case 113, or both the upper case 112 and the lower case 113.

Alternatively, the spacer 120 may be a plate structure, a cavity structure, a housing structure, a barrel structure, or other structural types.

In one embodiment, referring to fig. 1 and 2, the spacer 120 includes a first spacer 121 and a second spacer 122. The first partition plate 121 is connected to the inner wall of the lower housing 113, the second partition plate 122 is connected to the first partition plate 121 and the inner wall of the lower housing 113, the upper housing 112 is provided with a matching groove 117, the first partition plate 121 and the second partition plate 122 are in sealing fit with the matching groove 117, and the upper housing 112, the lower housing 113, the first partition plate 121 and the second partition plate 122 together enclose a first pressure stabilizing cavity 115 and a second pressure stabilizing cavity 116. For example, the first partition plate 121 and the second partition plate 122 are vertically arranged to form a T shape, and are connected with the lower housing 113 to form two independent rectangular first voltage stabilizing cavities 115 and second voltage stabilizing cavities 116, so that the structure is simple, the installation and the processing are convenient, the casting mold does not need to be manufactured again, and the production cost is reduced.

In other embodiments, the shapes of the first and second regulated chambers 115 and 116 may be circular, triangular, regular polygonal, or other irregular shapes, which are not particularly limited herein.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating installation positions of the first voltage stabilizer 150 and the second voltage stabilizer 160 according to an embodiment of the present application, and in one embodiment, the lower housing 113 is provided with a first installation hole 1131 and a second installation hole 1132 that are respectively communicated with the inner cavity 114. The first air outlet pipe 130 is connected to the lower case 113 through a first mounting hole 1131, and the second air outlet pipe 140 is connected to the lower case 113 through a second mounting hole 1132. In this way, the installation of the first and second outlet pipes 130 and 140 is facilitated.

Specifically, the first air outlet pipe 130 extends into the inner cavity 114 through the first mounting hole 1131, and the outer wall of the first air outlet pipe 130 is in sealing fit with the inner wall of the first mounting hole 1131. The second air outlet pipe 140 extends into the inner cavity 114 through the second mounting hole 1132, and the outer wall of the second air outlet pipe 140 is in sealing fit with the inner wall of the second mounting hole 1132. Alternatively, the sealing fit may be by providing a raised peripheral edge, a sealing ring, a sealing strip or other sealing material. Therefore, air leakage between the air outlet pipe and the lower case 113 can be avoided.

In one embodiment, referring to fig. 2, a third mounting hole 1151 is formed in the bottom wall of the first voltage stabilizing chamber 115, and a fourth mounting hole 1161 is formed in the bottom wall of the second voltage stabilizing chamber 116. The first voltage regulator 150 and the second voltage regulator 160 are both located outside the housing assembly 110, the first voltage regulator 150 is connected to the cavity wall of the first voltage regulator cavity 115 through the third mounting hole 1151, and the second voltage regulator 160 is connected to the cavity wall of the second voltage regulator cavity 116 through the fourth mounting hole 1161. Therefore, the third mounting hole 1151 and the fourth mounting hole 1161 can be conveniently mounted, and the air filter is convenient to simply modify on the basis of the original air filter, so that the production cost is reduced.

In one embodiment, referring to fig. 2, the bottom wall of the first plenum 115 is provided with an arcuate transition surface. The bottom wall of the second regulated pressure cavity 116 is provided with an arcuate transition surface. Therefore, the transition effect of the arc transition surface is beneficial to reducing the friction between high-pressure gas and the cavity wall and noise.

Alternatively, the first pressure regulator 150 may be provided in a tank structure, a pipe structure, a pump body structure, a piston structure, or other structural types.

In one embodiment, referring to fig. 1 and 4, the first pressure stabilizer 150 includes a first connection pipe, the second pressure stabilizer 160 includes a second connection pipe, opposite ends of the first connection pipe are respectively connected to the first pressure stabilizing chamber 115 and the first air outlet pipe 130, and opposite ends of the second connection pipe are respectively connected to the second pressure stabilizing chamber 116 and the second air outlet pipe 140. In this way, the two pressure stabilizing cavities and the two air outlet pipes are communicated at the shell assembly 110 in the mode of the two connecting pipes, the installation method is simple and reliable, the air inlet uniformity of the two cylinders of the double-cylinder engine is effectively improved, the acting performance of the two cylinders is more similar, and the durability of the engine is improved. The present embodiment provides only one specific embodiment of the first voltage stabilizer 150 and the second voltage stabilizer 160, but is not limited thereto.

In one embodiment, referring to fig. 1 and 5, fig. 5 shows a schematic structural diagram of a first air outlet pipe and a second air outlet pipe according to an embodiment of the present application. The first connection base 131 is arranged on the pipe wall of the first air outlet pipe 130, the first connection base 131 is communicated with the first air outlet pipe 130, and the first pressure stabilizing piece 150 is connected with the first connection base 131. The second connection base 141 is arranged on the pipe wall of the second air outlet pipe 140, the second connection base is communicated with the second air outlet pipe 140, and the second pressure stabilizing piece 160 is connected with the second connection base 141. Thus, the first and second pressure stabilizing members 150 and 160 are conveniently mounted and dismounted on the first and second air outlet pipes 130 and 140, respectively, and the convenience of dismounting is improved.

Alternatively, the first connection base 131 may be connected to the first voltage stabilizer 150 by a bolt connection, a screw connection, a socket connection, a clip connection, an adhesive connection, a rivet connection, a pin connection, or other connection methods. The second connection base 141 and the second voltage stabilizer 160 may be connected by a bolt, a thread, a socket, a clip, an adhesive, a rivet, a pin, or other connection methods.

In one embodiment, referring to fig. 1, the first air outlet pipe 130 is further provided with a first fastener 132, and the first voltage stabilizer 150 is fastened and matched with the first connection base 131 through the first fastener 132. The second outlet pipe 140 is further provided with a second fastening member 142, and the second voltage stabilizer 160 is fastened and matched with the second connecting base 141 through the second fastening member 142. For example, the first fastening member 132 and the second fastening member 142 are snap springs. In this way, after the first voltage stabilizer 150 and the second voltage stabilizer 160 are respectively connected with the first connection base 131 and the second connection base 141, fastening is performed through the clamp spring, so that the first voltage stabilizer 150 can be prevented from being loosened due to shock waves in the working process, and the working reliability is improved. The embodiment provides only a specific arrangement manner of the first voltage stabilizer 150 and the first connecting base 131, but is not limited thereto.

In other embodiments, the specific number of the pressure stabilizing cavities can be set according to the number of engine cylinders, and different numbers of the pressure stabilizing cavities can be formed by changing the structure of the partition plate, so that the pressure stabilizing cavity is suitable for air filtering and air intake of a multi-cylinder engine.

For example, the partition 120 further separates the filter cavity 111 into a third pressure stabilizing cavity (not shown in the figure), the third pressure stabilizing cavity is not communicated with the first pressure stabilizing cavity 115, the second pressure stabilizing cavity 116 and the inner cavity 114, the air filter device 100 further comprises a third air outlet pipe and a third pressure stabilizing piece, the third air outlet pipe is communicated with the inner cavity 114, the third pressure stabilizing piece is connected between a cavity wall of the third pressure stabilizing cavity and a pipe wall of the third air outlet pipe, and the third pressure stabilizing cavity is communicated with the third air outlet pipe through the third pressure stabilizing piece.

In one embodiment, referring to fig. 1 and 3, the upper housing 112 is provided with an air inlet, the housing assembly 110 further includes an air filter cover 170, the air filter cover 170 is covered on the air inlet, the air filter cover 170 is connected with an air inlet pipe 172, and a filter element 171 is disposed on a wall of the air inlet. In this manner, air enters the interior chamber 114 from the air inlet pipe 172, and impurities in the air are filtered by the filter element 171, so that the air is discharged from the first air outlet pipe 130 and the second air outlet pipe 140.

In one embodiment, a motorcycle (not shown) includes the air filter device 100 of any of the above.

In the above motorcycle, in the installation process, the spacer 120 is installed in the housing assembly 110, the first pressure stabilizing cavity 115 and the second pressure stabilizing cavity 116 which are not communicated with the inner cavity 114 are isolated from the isolating cavity, after the first air outlet pipe 130 and the second air outlet pipe 140 are communicated with the housing assembly 110, the inner cavity 114 can respectively air out two cylinders, the first pressure stabilizing piece 150 is installed between the first pressure stabilizing cavity 115 and the pipe wall of the first air outlet pipe 130, the second pressure stabilizing piece 160 is installed between the second pressure stabilizing cavity 116 and the pipe wall of the second air outlet pipe 140, in the working process, the pressure fluctuation on the first air outlet pipe 130 and the second air outlet pipe 140 can be relieved by the first pressure stabilizing cavity 115 and the second pressure stabilizing cavity 116, the degree of the mutual influence of the cylinders in the air inlet process is reduced, thereby the air inlet non-uniformity of the two cylinders is improved, and the work performance of the two cylinders becomes closer. Because the spacer 120 is in the interior of the housing assembly 110, the integration level is high, the interior space of the housing assembly 110 is fully utilized, the structural compactness is improved, and the whole vehicle arrangement and the appearance integrity of the motorcycle are ensured. And parts are not required to be added, so that the control of the production cost is facilitated. In addition, the pressure stabilizing cavity scheme is also a Helmholtz resonator scheme, and can reduce noise and eliminate noise for the inhalation sound in a specific frequency range.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. An air filter device, characterized in that the air filter device comprises:

the shell assembly is provided with a filter cavity;

the isolating piece is connected with the inner wall of the filter cavity and divides the filter cavity into an inner cavity, a first pressure stabilizing cavity and a second pressure stabilizing cavity which are not communicated with each other;

the first air outlet pipe and the second air outlet pipe are respectively communicated with the inner cavity;

the first pressure stabilizing piece is connected between the cavity wall of the first pressure stabilizing cavity and the pipe wall of the first air outlet pipe, and the first pressure stabilizing cavity is communicated with the first air outlet pipe through the first pressure stabilizing piece; the second pressure stabilizing piece is connected between the cavity wall of the second pressure stabilizing cavity and the pipe wall of the second air outlet pipe, and the second pressure stabilizing cavity is communicated with the second air outlet pipe through the second pressure stabilizing piece.

2. An air filter device according to claim 1, wherein the housing assembly comprises an upper housing and a lower housing, the upper housing and the lower housing being detachably connected and enclosing the filter cavity together, the partition being connected to an inner wall of the upper housing and/or the lower housing, the first air outlet duct being connected to the upper housing or the lower housing, the second air outlet duct being connected to the upper housing or the lower housing, the first pressure regulator being connected to the upper housing or the lower housing, the second pressure regulator being connected to the upper housing or the lower housing.

3. The air filter device according to claim 2, wherein the spacer comprises a first partition plate and a second partition plate, the first partition plate is connected to the inner wall of the lower housing, the second partition plate is connected to the first partition plate and the inner wall of the lower housing respectively, the upper housing is provided with a matching groove, the first partition plate and the second partition plate are in sealing fit with the matching groove, and the upper housing, the lower housing, the first partition plate and the second partition plate jointly enclose the first pressure stabilizing cavity and the second pressure stabilizing cavity.

4. An air filter device according to claim 3, wherein the lower housing is provided with a first mounting hole and a second mounting hole which are respectively communicated with the inner cavity, the first air outlet pipe is connected with the lower housing through the first mounting hole, and the second air outlet pipe is connected with the lower housing through the second mounting hole.

5. The air filter device according to claim 1, wherein a third mounting hole is formed in the bottom wall of the first pressure stabilizing cavity, a fourth mounting hole is formed in the bottom wall of the second pressure stabilizing cavity, the first pressure stabilizing piece and the second pressure stabilizing piece are both located outside the shell assembly, the first pressure stabilizing piece is connected with the cavity wall of the first pressure stabilizing cavity through the third mounting hole, and the second pressure stabilizing piece is connected with the cavity wall of the second pressure stabilizing cavity through the fourth mounting hole.

6. The air filter device according to claim 1, wherein the first pressure stabilizing member comprises a first connecting pipe, the second pressure stabilizing member comprises a second connecting pipe, opposite ends of the first connecting pipe are respectively communicated with the first pressure stabilizing cavity and the first air outlet pipe, and opposite ends of the second connecting pipe are respectively communicated with the second pressure stabilizing cavity and the second air outlet pipe.

7. The air filter device according to claim 6, wherein a first connecting base is arranged on the pipe wall of the first air outlet pipe, the first connecting base is communicated with the first air outlet pipe, and the first pressure stabilizer is connected with the first connecting base; the pipe wall of the second air outlet pipe is provided with a second connecting base, the second connecting base is communicated with the second air outlet pipe, and the second pressure stabilizing piece is connected with the second connecting base.

8. The air filter device according to claim 7, wherein the first air outlet pipe is further provided with a first fastener, and the first pressure stabilizing member is in fastening fit with the first connection base through the first fastener; the second air outlet pipe is further provided with a second fastening piece, and the second voltage stabilizing piece is in fastening fit with the second connecting base through the second fastening piece.

9. The air filter device according to any one of claims 1-8, wherein the separator further separates the filter cavity into a third pressure stabilizing cavity, the third pressure stabilizing cavity is not communicated with the first pressure stabilizing cavity, the second pressure stabilizing cavity and the inner cavity, the air filter device further comprises a third air outlet pipe and a third pressure stabilizing piece, the third air outlet pipe is communicated with the inner cavity, the third pressure stabilizing piece is connected between a cavity wall of the third pressure stabilizing cavity and a pipe wall of the third air outlet pipe, and the third pressure stabilizing cavity is communicated with the third air outlet pipe through the third pressure stabilizing piece.

10. A motorcycle comprising an air filter device as claimed in any one of claims 1 to 9.