Air filter, engine assembly and vehicle

Abstract

The air filter is used for the vehicle and comprises a shell, a filter element and an air outlet pipe, a containing cavity is defined by the shell, the shell comprises a first side plate and a second side plate which are opposite, the filter element is contained in the containing cavity, the filter element is connected with the shell and divides the containing cavity into an air outlet cavity, and the air outlet pipe is connected with the first side plate. The shell further comprises a first connecting plate, the first connecting plate is connected with the air outlet pipe and the second side plate, at least part of the first connecting plate is opposite to the first side plate, and the distance between the first connecting plate and the first side plate is gradually reduced in the direction from the position away from the air outlet pipe to the position close to the air outlet pipe. By arranging the first connecting plate, the distance between the first connecting plate and the first side plate is gradually reduced from the direction away from the air outlet pipe to the direction close to the air outlet pipe, that is, the first connecting plate inclines towards the first side plate, so that the size of the air filter is reduced, and the air filter can be conveniently installed in a limited arrangement space.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an air filter, an engine assembly and a vehicle. Background Art

[0002] An air filter is a device that removes particulate impurities from the air. It is mainly used for air filtration in engineering locomotives, automobiles, agricultural locomotives, laboratories, sterile operating rooms and various precision operating rooms. The engine needs to inhale a large amount of air during operation. If the air is not filtered, the dust suspended in the air will be sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder. Larger particles entering between the piston and the cylinder will cause serious "cylinder pulling", which is particularly serious in dry and sandy working environments. The air filter is installed in front of the carburetor or the intake pipe to filter out dust and sand in the air to ensure that sufficient and clean air enters the cylinder.

[0003] The air inlet and outlet of the air filter in the prior art all adopt a conventional inner tube structure, which has the problem that the air filter is large in size and has insufficient layout space. Utility Model Content

[0004] The utility model aims to provide an air filter, an engine assembly and a vehicle, which solve the problem that the air filter in the prior art adopts a conventional structure of an inner insert pipe in the air inlet and outlet, and has a large volume of the air filter and insufficient layout space.

[0005] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0006] In the first aspect, the utility model provides an air filter for a vehicle, comprising: a shell body enclosing a accommodating cavity, the shell body comprising a first side plate and a second side plate opposite to each other; a filter element accommodated in the accommodating cavity, the filter element is connected to the shell body and divides the accommodating cavity into an air outlet cavity; an air outlet pipe connected to the first side plate, the air outlet pipe having an air outlet channel, and the air outlet channel is connected to the air outlet cavity; wherein the shell body also comprises a first connecting plate, the first connecting plate connecting the air outlet pipe and the second side plate, the first connecting plate is at least partially opposite to the first side plate, and the distance between the first connecting plate and the first side plate gradually decreases from away from the air outlet pipe to close to the air outlet pipe.

[0007] In one embodiment, the first connecting plate includes a first plate and a second plate, the first plate is connected to the second side plate and is opposite to the first side plate, and the second plate is connected to the first plate and the air outlet pipe; the angle between the first plate and the second side plate is A, and the angle between the second plate and the second side plate is B, satisfying 90°<B≤A≤150°.

[0008] In one embodiment, the air filter further includes a guide assembly, which is received in the accommodating cavity and connected to the shell, and is suitable for guiding the air to reduce noise generated by the impact of the air on the shell.

[0009] In one embodiment, the guide assembly includes a first guide plate and a second guide plate, and the first guide plate and the second guide plate are both accommodated in the air outlet cavity and are relatively spaced and connected to one end of the shell close to the air outlet pipe; from away from the air outlet pipe to closer to the air outlet pipe, the distance between the first guide plate and the first side plate gradually decreases, and the distance between the second guide plate and the first side plate gradually decreases.

[0010] In one embodiment, the filter element also divides the accommodating cavity to form an air intake cavity, the air filter also includes an air intake pipe, and the guide assembly also includes a third guide plate. The air intake pipe is connected to the shell and has an air intake channel, and the air intake channel is connected to the air intake cavity. The third guide plate is accommodated in the air intake cavity, and the distance between the third guide plate and the air intake pipe gradually increases from the air intake pipe to the air outlet pipe.

[0011] In one embodiment, the minimum distance between the third guide plate and the intake pipe in the first direction is C, satisfying 30cm≤C≤70cm; and / or, the minimum distance between the third guide plate and the filter element in the second direction is D, satisfying 5cm≤D≤20cm, and the first direction intersects with the second direction.

[0012] In one embodiment, the third guide plate includes a main body and a vibration-damping part, the main body is connected to the shell, and the vibration-damping part is arranged on a surface of the main body facing the air inlet cavity.

[0013] In one embodiment, the third guide plate divides the accommodating cavity to form a resonant cavity, the resonant cavity is connected to the air inlet cavity, at least part of the air in the air inlet cavity is suitable for entering the resonant cavity, and the resonant cavity is suitable for reducing vibrations generated when air flows.

[0014] In one embodiment, the guide assembly also includes a connecting pipe, one end of which is connected to the third guide plate, and the other end extends into the resonance cavity. The connecting pipe has a connecting channel, which connects the air inlet cavity and the resonance cavity, and the connecting pipe extends in a curved manner.

[0015] In one embodiment, the shell further includes a third side plate, a fourth side plate and a second connecting plate, the third side plate and the fourth side plate are arranged opposite to each other, the two ends of the third side plate are respectively connected to the air outlet pipe and the second connecting plate, the end of the second connecting plate away from the third side plate is connected to the air inlet pipe, and the third guide plate is connected to the fourth side plate; from the air outlet pipe to the air inlet pipe, the distance between the second connecting plate and the fourth side plate gradually decreases.

[0016] In a second aspect, the utility model further provides an engine assembly, comprising an engine and the air filter described in each embodiment of the first aspect, wherein an air outlet pipe of the air filter is connected to a cylinder of the engine.

[0017] In a third aspect, the present invention further provides a vehicle, comprising the engine assembly described in the various embodiments of the second aspect.

[0018] By setting the first connecting plate, the distance between the first connecting plate and the first side plate gradually decreases from away from the air outlet pipe to close to the air outlet pipe, that is, the first connecting plate is inclined toward the first side plate, so that the volume of the air filter is reduced, which is convenient for installation in a limited layout space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a structural diagram of an air filter of an embodiment;

[0021] Figure 2 is a structural diagram of an air filter of another embodiment;

[0022] Figure 3 is a top view of an air filter of an embodiment;

[0023] Figure 4 is a top cross-sectional view of an air filter of an embodiment;

[0024] Figure 5 is a front cross-sectional view of an air filter of an embodiment;

[0025] Figure 6 This is a structural diagram of a third guide vane in an embodiment.

[0026] Description of reference numerals:

[0027] 100-Air filter;

[0028] 10-shell, 11-accommodating chamber, 111-air outlet chamber, 112-air inlet chamber, 113-resonance chamber, 12-first side plate, 13-second side plate, 14-upper shell, 141-fifth side plate, 15-lower shell, 151-sixth side plate, 152-seventh side plate, 153-eighth side plate, 16-first connecting plate, 161-first plate, 162-second plate, 17-third side plate, 18-fourth side plate, 19-second connecting plate, 191-third plate, 192-fourth plate;

[0029] 20-filter element;

[0030] 30-exhaust pipe, 31-exhaust channel;

[0031] 40-flow guide assembly, 41-first flow guide plate, 42-second flow guide plate, 43-third flow guide plate, 431-main body, 432-vibration reduction part, 433-vent, 44-connecting pipe, 441-connecting channel, 442-first pipeline, 443-second pipeline, 444-third pipeline;

[0032] 50-intake pipe, 51-intake passage, 52-vibration damping layer;

[0033] X-first direction, Y-third direction, Z-second direction. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0036] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0037] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0038] The utility model provides a vehicle (not shown), including the engine assembly (not shown) in the embodiment of the utility model. Optionally, the vehicle may be a fuel vehicle or a hybrid vehicle, etc., without limitation. The engine assembly in the embodiment of the utility model is applied to the power system (not shown) of the vehicle. Optionally, the power system of the fuel vehicle includes an engine, an intake device and an exhaust device, the engine is used to generate power, and the intake device and the exhaust device are responsible for providing the necessary air to the engine and emitting exhaust gas respectively. Optionally, the power system of the fuel vehicle also includes a clutch and a differential, the clutch is used to control the gearbox to change the speed and torque output by the engine, and the differential is used to evenly distribute the power to the reducers of the wheels on both sides, and then transmit the power to the wheels through the reducer. Optionally, the power system of the hybrid vehicle also includes a motor compared to the fuel vehicle, the engine is used to generate electricity for the motor, and the motor controls the rotation of the wheels.

[0039] The vehicle provided by the utility model, by setting the engine assembly in the embodiment of the utility model, realizes that the vehicle can travel under the drive of the engine assembly, and is also conducive to installation in a limited layout space.

[0040] Please refer to Figure 1 and Figure 2 The utility model further provides an engine assembly, including an engine (not shown) and an air filter 100 in an embodiment of the utility model, wherein an air outlet pipe 30 of the air filter 100 is connected to a cylinder of the engine.

[0041] Optionally, the engine is also provided with an air intake and an exhaust port, the air intake connecting the cylinder and the air filter 100 in the embodiment of the utility model, the exhaust port is used to discharge exhaust gas, and the air filter 100 in the embodiment of the utility model is used to input filtered air into the cylinder to provide oxygen for fuel combustion.

[0042] The engine assembly provided by the utility model includes an engine and an air filter 100 in an embodiment of the utility model. The air outlet pipe 30 of the air filter 100 is connected to the cylinder of the engine, so that the vehicle can travel under the drive of the engine. At the same time, the air filter 100 is small in size, which is beneficial for installation in a limited layout space.

[0043] Please refer to Figures 1 to 5 The utility model also provides an air filter 100 for a vehicle, comprising a housing 10 , a filter element 20 and an air outlet pipe 30 .

[0044] The housing 10 encloses a receiving cavity 11, and the housing 10 includes a first side plate 12 and a second side plate 13 opposite to each other. Optionally, the housing 10 includes an upper housing 14 and a lower housing 15, and the upper housing 14 and the outer housing 10 are connected and enclosed to form the receiving cavity 11. Optionally, the upper housing 14 and the lower housing 15 may be an integrated structure, or may be detachably connected by a connection method such as snap connection, screw connection, and welding, without limitation.

[0045] Optional, please refer to Figure 1 and Figure 2 A portion of the first side plate 12 is arranged on the upper shell 14, and the other portion is arranged on the lower shell 15. The upper shell 14 and the lower shell 15 are connected to form the first side plate 12. A portion of the second side plate 13 is arranged on the upper shell 14, and the other portion is arranged on the lower shell 15. The upper shell 14 and the lower shell 15 are connected to form the second side plate 13.

[0046] Optional, please refer to Figure 1 and Figure 5 The housing 10 further includes a fifth side plate 141 and a sixth side plate 151, which are arranged opposite to each other in the second direction Z and are both connected to the first side plate 12, and the fifth side plate 141 is also connected to the second side plate 13, the fifth side plate 141 is arranged on the upper housing 14, and the sixth side plate 151 is arranged on the lower housing 15. Optionally, the distance between the fifth side plate 141 and the first side plate 12 gradually decreases from the upper housing 14 to the lower housing 15, so as to further reduce the volume of the air filter 100. Optionally, the housing 10 can be made of a material that meets the requirements of structural strength, high temperature resistance and easy processing and forming, and can be specifically aluminum alloy, stainless steel, carbon fiber and ceramic, etc., without limitation.

[0047] The filter element 20 is received in the accommodating chamber 11, and the filter element 20 is connected to the housing 10 and divides the accommodating chamber 11 to form an air outlet chamber 111. Optionally, the filter element 20 is connected to the aforementioned lower housing 15, and the outer peripheral surface of the filter element 20 abuts against the inner wall surface of the lower housing 15 to isolate the air outlet chamber 111 from the rest of the accommodating chamber 11, thereby preventing unfiltered air from entering the air inlet chamber 112 from the gap between the filter element 20 and the lower housing 15.

[0048] Optional, please refer to Figure 5 The filter element 20 and the lower shell 15 can be connected and fixed by bonding, clamping, screwing and hot melting, etc., without limitation. Optionally, the filter element 20 can also be arranged at the connection between the upper shell 14 and the lower shell 15, and connected and fixed to both the upper shell 14 and the lower shell 15. Optionally, the filter element 20 can be made of a material that is resistant to high temperature, not easy to corrode and has strong adsorption capacity, specifically glass fiber, synthetic fiber, non-woven fabric and activated carbon, etc., without limitation.

[0049] The air outlet pipe 30 is connected to the first side plate 12, and the air outlet pipe 30 has an air outlet channel 31, and the air outlet channel 31 is connected to the air outlet cavity 111. Optionally, the air outlet pipe 30 is connected to the upper shell 14. Optionally, the air outlet pipe 30 and the upper shell 14 can be an integrated structure, or can be detachably connected by means of clamping, screwing, riveting and welding, etc., without limitation. Optionally, the air outlet pipe 30 can extend along the first direction X, or the air outlet pipe 30 can extend along the second direction Z, or the air outlet pipe 30 can extend along the third direction Y, and the first direction X, the second direction Z and the third direction Y all intersect.

[0050] For example, please refer to Figure 3 The outlet pipe 30 extends along the third direction Y. In the orthographic projection on the third direction Y, the outline shape of the outlet pipe 30 can be circular, rectangular, elliptical, non-circular, etc., without limitation. Optionally, the material of the outlet pipe 30 is similar to that of the housing 10, which can be used as a reference and will not be described in detail.

[0051] The housing 10 further includes a first connecting plate 16, which connects the air outlet pipe 30 and the second side plate 13. The first connecting plate 16 is at least partially opposite to the first side plate 12, and the distance between the first connecting plate 16 and the first side plate 12 gradually decreases from the direction away from the air outlet pipe 30 to the direction close to the air outlet pipe 30. Optionally, a part of the first connecting plate 16 is arranged on the upper housing 14, and the other part is arranged on the lower housing 15, and the upper housing 14 and the lower housing 15 are connected to form the first connecting plate 16. Optionally, the first connecting plate 16 and the second side plate 13 can be an integrated structure, or can be detachably connected by means of clamping, welding, riveting, etc., without limitation.

[0052] Optional, please refer to Figure 1 The shell 10 further includes a seventh side plate 152 and an eighth side plate 153, both of which are disposed on the lower shell 15, the seventh side plate 152 is connected to the second side plate 13, the first connecting plate 16 and the sixth side plate 151, and the eighth side plate 153 is connected to the first connecting plate 16 and the sixth side plate 151. Optionally, the distance between the seventh side plate 152 and the second side plate 13 gradually decreases from the direction of the upper shell 14 to the lower shell 15. Optionally, the distance between the eighth side plate 153 and the second side plate 13 gradually decreases from the direction of the upper shell 14 to the lower shell 15, and the distance between the eighth side plate 153 and the second side plate 13 gradually decreases from the direction away from the air outlet pipe 30 to the direction close to the air outlet pipe 30.

[0053] By setting the first connecting plate 16, the distance between the first connecting plate 16 and the first side plate 12 gradually decreases from away from the outlet pipe 30 to closer to the outlet pipe 30, that is, the first connecting plate 16 is inclined toward the first side plate 12. Compared with the scheme of using a rectangular shell or a cube shell, the first connecting plate 16 in this scheme is inclined toward the first side plate 12. Under the premise of not affecting the performance of the air filter 100, the volume of the air filter 100 is reduced, which is convenient for installation in a limited layout space, and can provide more installation space for arranging other components, making the layout of the engine assembly more compact.

[0054] In addition, the first connecting plate 16 can provide a guiding function for the air in the air outlet cavity 111 when it flows to the air outlet channel 31 , so that the air resistance and noise of the air filter 100 are reduced.

[0055] Please refer to Figure 1 and Figure 3 The first connecting plate 16 includes a first plate 161 and a second plate 162. The first plate 161 is connected to the second side plate 13 and is opposite to the first side plate 12. The second plate 162 is connected to the first plate 161 and the air outlet pipe 30. The angle between the first plate 161 and the second side plate 13 is A, and the angle between the second plate 162 and the second side plate 13 is B, which satisfies 90°<B≤A≤150°. Optionally, a part of the first plate 161 is arranged on the upper shell 14, and the other part is arranged on the lower shell 15. The upper shell 14 and the lower shell 15 are connected to form the first plate 161. Optionally, the second plate 162 is arranged on the upper shell 14.

[0056] Optional, please refer to Figure 3 , B can be 100°, 110°, 120°, 130°, 140° and 150°, without limitation. Optionally, A can be 100°, 110°, 120°, 130°, 140° and 150°, without limitation. Optionally, the angle between the first plate 161 and the second plate 162 can be a straight angle or an obtuse angle, without limitation, so as to adjust the size and shape of the air filter 100 according to the layout space.

[0057] By setting the first plate 161 and the second plate 162, the first plate 161 is connected to the second side plate 13 and is opposite to the first side plate 12, and the second plate 162 is connected to the first plate 161 and the air outlet pipe 30, the angle between the first plate 161 and the second side plate 13 is A, and the angle between the second plate 162 and the second side plate 13 is B, which satisfies 90°<B≤A≤150°, wherein the angle between the second plate 162 and the extension direction of the air outlet channel 31 is smaller than the angle between the first plate 161 and the extension direction of the air outlet channel 31, so that the air can enter the air outlet channel 31 from the first plate 161 through the second plate 162, so that the resistance of the air when flowing from the first connecting plate 16 to the air outlet channel 31 is lower, thereby improving the air outlet speed and uniformity of the air filter 100.

[0058] Please refer to Figure 4 and Figure 5 The air filter 100 further includes a guide assembly 40 , which is received in the accommodating chamber 11 and connected to the housing 10 . The guide assembly 40 is suitable for guiding the air to reduce the noise generated by the impact of the air on the housing 10 .

[0059] Optionally, the guide assembly 40 may be a guide vane, a fan vane, an intake manifold, etc., without limitation. Optionally, the guide assembly 40 and the housing 10 may be an integrated structure, or may be detachably connected by a connection method such as a snap connection, a screw connection, and a welding connection, without limitation. Optionally, the material of the guide assembly 40 is similar to that of the housing 10, which can be used as a reference and will not be described in detail.

[0060] By setting up a guide component 40, the guide component 40 is accommodated in the accommodating chamber 11 and connected to the shell 10. The guide component 40 is suitable for guiding the air to reduce the noise generated by the impact of the air on the shell 10, so that the air can flow under the guidance of the guide component 40 when entering the accommodating chamber 11 or discharging the accommodating chamber 11, so that the air will not directly impact the inner wall of the shell 10 due to excessive speed, thereby reducing the air resistance and noise of the air filter 100.

[0061] Please refer to Figure 4 The guide assembly 40 includes a first guide plate 41 and a second guide plate 42. The first guide plate 41 and the second guide plate 42 are both accommodated in the air outlet cavity 111 and are relatively spaced and connected to one end of the shell 10 close to the air outlet pipe 30. From the direction away from the air outlet pipe 30 to the direction close to the air outlet pipe 30, the distance between the first guide plate 41 and the first side plate 12 gradually decreases, and the distance between the second guide plate 42 and the first side plate 12 gradually decreases.

[0062] Optionally, the first guide plate 41 and the second guide plate 42 are both disposed at one end of the upper shell 14 close to the air outlet, and are spaced apart in the second direction Z. Optionally, the first guide plate 41 and the upper shell 14 may be an integral structure, or may be detachably connected by means of snap connection, screw connection, riveting, welding, etc., without limitation. Optionally, the connection method of the second guide plate 42 and the upper shell 14 is similar to that of the first guide plate 41, which can be referred to and will not be described in detail.

[0063] Optionally, both ends of the first guide plate 41 in the third direction Y are connected to the inner wall surface of the upper shell 14, so that the air in the air outlet cavity 111 can all flow along the extension direction of the first guide plate 41. Optionally, there is a spacing distance between the end of the first guide plate 41 close to the air outlet pipe 30 in the second direction Z and the second plate 162, so that air can enter the air outlet channel 31. Optionally, the first guide plate 41 can extend in a straight line, or bend and extend toward one side of the filter element 20, without limitation.

[0064] Optionally, the structure of the second guide plate 42 is similar to that of the first guide plate 41 , which can be referred to and will not be described in detail. Optionally, one end of the second guide plate 42 close to the air outlet pipe 30 in the second direction Z is connected to the first side plate 12 .

[0065] By setting the first guide plate 41 and the second guide plate 42, the first guide plate 41 and the second guide plate 42 are both accommodated in the air outlet cavity 111, and are relatively spaced and connected to one end of the shell 10 close to the air outlet pipe 30. From away from the air outlet pipe 30 to the direction close to the air outlet pipe 30, the distance between the first guide plate 41 and the first side plate 12 gradually decreases, and the distance between the second guide plate 42 and the first side plate 12 gradually decreases, so that the air in the air outlet cavity 111 can flow along the first guide plate 41 and the second guide plate 42, preventing the air from directly impacting the pipe wall of the air outlet pipe 30, reducing the air resistance and noise of the air filter 100, and improving the air outlet speed and uniformity of the air outlet pipe 30.

[0066] Please refer to Figure 5 The filter element 20 also divides the accommodating chamber 11 into an air intake chamber 112. The air filter 100 also includes an air intake pipe 50. The guide assembly 40 also includes a third guide plate 43. The air intake pipe 50 is connected to the shell 10 and has an air intake channel 51. The air intake channel 51 is connected to the air intake chamber 112. The third guide plate 43 is accommodated in the air intake chamber 112. From the air intake pipe 50 to the direction of the air outlet pipe 30, the distance between the third guide plate 43 and the air intake pipe 50 gradually increases.

[0067] Optionally, the air inlet pipe 50 is connected to the aforementioned lower housing 15, and is disposed on the same side of the air filter 100 in the first direction X as the air outlet pipe 30, and the air inlet pipe 50 and the air outlet pipe 30 are respectively disposed at two ends of the air filter 100 in the second direction Z. Optionally, the air inlet pipe 50 and the lower housing 15 may be an integrated structure, or may be detachably connected by means of snap connection, screw connection, riveting, welding, etc., without limitation.

[0068] Optionally, the air inlet pipe 50 may extend along the first direction X, or the air inlet pipe 50 may extend along the second direction Z, or the air inlet pipe 50 may extend along the third direction Y. For example, please refer to Figure 4 , the air inlet pipe 50 extends along the first direction X. In the orthographic projection on the first direction X, the contour shape of the air inlet pipe 50 can be circular, rectangular, elliptical, non-circular, etc., without limitation. Optionally, the material of the air outlet pipe 30 is similar to that of the shell 10, which can be used for reference and will not be described in detail. Optionally, a vibration-damping layer 52 is also provided on the inner circumferential surface of the air inlet pipe 50. Optionally, the vibration-damping layer 52 can be made of a material that is resistant to high temperatures, has stable chemical properties, and has good noise-absorbing properties, and can specifically be glass fiber, rubber, polyethylene terephthalate, sound-absorbing cotton, etc., without limitation.

[0069] Optionally, the third guide plate 43 is connected to the lower shell 15, and is connected to the first side plate 12, the sixth side plate 151, and the seventh side plate 152. Optionally, the third guide plate 43 may extend in a straight line, or may be bent and extended toward one side of the upper shell 14, without limitation. Optionally, the third guide plate 43 and the lower shell 15 may be an integrated structure, or may be detachably connected by means of clamping, screwing, riveting, welding, etc., without limitation.

[0070] By providing an air intake pipe 50 and a third guide plate 43, the filter element 20 also divides the accommodating chamber 11 into an air intake chamber 112. The air intake pipe 50 is connected to the shell 10 and has an air intake channel 51. The air intake channel 51 is communicated with the air intake chamber 112. The third guide plate 43 is accommodated in the air intake chamber 112. From the air intake pipe 50 to the direction of the air outlet pipe 30, the distance between the third guide plate 43 and the air intake pipe 50 gradually increases, so that the air in the air intake chamber 112 can flow along the third guide plate 43, preventing the air from directly impacting the inner wall of the shell 10, thereby reducing the air resistance and noise of the air filter 100.

[0071] Please refer to Figure 5, the minimum distance between the third guide plate 43 and the air inlet pipe 50 in the first direction X is C, which satisfies 30 cm (centimeter) ≤ C ≤ 70 cm, and / or, the minimum distance between the third guide plate 43 and the filter element 20 in the second direction Z is D, which satisfies 5 cm ≤ D ≤ 20 cm, and the first direction X intersects the second direction Z. Optionally, C can be 30 cm, 40 cm, 50 cm, 60 cm, and 70 cm, etc., without limitation. Optionally, D can be 5 cm, 1 cm, 15 cm, 20 cm, 25 cm, and 30 cm, etc., without limitation.

[0072] By setting the minimum distance between the third guide plate 43 and the air inlet pipe 50 in the first direction X to C, satisfying 30cm≤C≤70cm, and / or the minimum distance between the third guide plate 43 and the filter element 20 in the second direction Z to D, satisfying 5cm≤D≤20cm, the first direction X intersects with the second direction Z, so that the air in the air inlet cavity 112 has a buffer distance after entering the air inlet cavity 112, so that the speed of the air when contacting the third guide plate 43 and the filter element 20 is lower than the speed of the air when entering the air inlet cavity 112, thereby reducing the vibration and noise generated when the air contacts the third guide plate 43 and the filter element 20.

[0073] Please refer to Figure 6 The third guide plate 43 includes a main body 431 and a vibration reduction portion 432. The main body 431 is connected to the housing 10, and the vibration reduction portion 432 is disposed on the surface of the main body 431 facing the air inlet cavity 112. Optionally, the vibration reduction portion 432 may extend to the portion of the sixth side plate 151 between the air inlet pipe 50 and the main body 431, and be connected to the aforementioned vibration reduction layer 52.

[0074] Optionally, the material of the main body 431 is similar to that of the housing 10, which can be referred to and will not be described in detail. Optionally, the material of the vibration reduction portion 432 is similar to that of the vibration reduction layer 52, which can be referred to and will not be described in detail.

[0075] By setting the third guide plate 43 including a main body 431 and a vibration-damping part 432, the main body 431 is connected to the shell 10, and the vibration-damping part 432 is arranged on the surface of the main body 431 facing the air intake chamber 112, so that when the air in the air intake chamber 112 flows along the third guide plate 43, the frequency of the air vibration is reduced under the buffering effect of the vibration-damping part 432, so that the noise generated by the air vibration is reduced, and the air in the air intake chamber 112 is not occupied too much, which is conducive to the installation of the air filter 100 in a limited layout space.

[0076] Please refer to Figure 5 The third guide plate 43 separates the accommodating cavity 11 to form a resonance cavity 113, and the resonance cavity 113 is connected to the air inlet cavity 112. At least part of the air in the air inlet cavity 112 is suitable for entering the resonance cavity 113, and the resonance cavity 113 is suitable for reducing the vibration generated when the air flows.

[0077] Optionally, the resonant cavity 113 is formed by enclosing the third guide plate 43 and the lower shell 15. Optionally, the volume of the resonant cavity 113 can be adjusted by adjusting the shape, length and installation position of the third guide plate 43 to adapt to the performance requirements of the air filter 100 in different application scenarios.

[0078] Optionally, the third guide plate 43 is provided with a vent hole 433, and the vent hole 433 circulates the air inlet cavity 112 and the resonant cavity 113. Optionally, there may be a plurality of vent holes 433, and the plurality of vent holes 433 are arranged at intervals on the third guide plate 43. Optionally, the air inlet cavity 112 and the resonant cavity 113 may also be connected by a pipe, a valve, an interface, etc., without limitation.

[0079] Optionally, a muffler (not shown) may be provided at the location where the third guide plate 43 is provided to replace the third guide plate 43, or a muffler may be provided in the resonance cavity 113, without limitation. Optionally, the muffler may be a resistive muffler, a reactive muffler, an impedance composite muffler, a micro-perforated plate muffler, a reflective muffler, an active muffler, a broadband muffler, etc., without limitation.

[0080] A resonance cavity 113 is formed by setting a third guide plate 43 to separate the accommodating cavity 11. The resonance cavity 113 is connected to the air inlet cavity 112. At least part of the air in the air inlet cavity 112 is suitable for entering the resonance cavity 113. The resonance cavity 113 is suitable for reducing the vibration generated when the air flows, so that part of the air in the air inlet cavity 112 can enter the resonance cavity 113 and generate scattering, reflection and interference in the resonance cavity 113, so that the energy of the air is dispersed and attenuated, thereby reducing the propagation distance and intensity of the noise.

[0081] Please refer to Figure 5 The guide assembly 40 also includes a connecting pipe 44, one end of which is connected to the third guide plate 43, and the other end extends into the resonance cavity 113. The connecting pipe 44 has a connecting channel 441, which connects the air inlet cavity 112 and the resonance cavity 113. The connecting pipe 44 is bent and extended.

[0082] Optionally, the connecting pipe 44 and the third guide plate 43 may be an integrated structure, or may be detachably connected by means of clamping, welding, screwing, etc., without limitation. Optionally, the material of the connecting pipe 44 is similar to that of the third guide plate 43, which can be referred to and will not be described in detail.

[0083] Optionally, the connecting pipe 44 includes a first pipe 442, a second pipe 443 and a third pipe 444, which are sequentially connected to form a connecting channel 441, and the first pipe 442 is connected to the third guide plate 43, wherein the first pipe 442 and the third pipe 444 are both extended in a straight line, the second pipe 443 is extended in a curved manner, and the third pipe 444 is extended to the aforementioned sixth side plate 151, so that the air can flow along the connecting pipe 44 to the bottom of the resonance cavity 113, so that the air can fully reduce vibration in the resonance cavity 113. Optionally, the length of the connecting pipe 44 can be changed as the volume of the resonance cavity 113 changes, so that the air can always flow to the bottom of the resonance cavity 113.

[0084] By setting a connecting pipe 44, one end of the connecting pipe 44 is connected to the third guide plate 43, and the other end extends into the resonance cavity 113. The connecting pipe 44 has a connecting channel 441, and the connecting channel 441 connects the air intake cavity 112 and the resonance cavity 113. The connecting pipe 44 is bent and extended, so that the air in the air intake cavity 112 can enter the resonance cavity 113 along the connecting pipe 44. The connecting pipe 44 is bent and extended, and the air can be decelerated under the buffering effect of the connecting pipe 44, preventing the air flow rate from being too fast and impacting the inner wall surface of the resonance cavity 113 to reduce noise.

[0085] Please refer to Figure 5 The shell 10 also includes a third side plate 17, a fourth side plate 18 and a second connecting plate 19. The third side plate 17 and the fourth side plate 18 are arranged opposite to each other. The two ends of the third side plate 17 are respectively connected to the air outlet pipe 30 and the second connecting plate 19. The end of the second connecting plate 19 away from the third side plate 17 is connected to the air inlet pipe 50. The third guide plate 43 is connected to the fourth side plate 18. From the air outlet pipe 30 to the air inlet pipe 50, the distance between the second connecting plate 19 and the fourth side plate 18 gradually decreases.

[0086] Optionally, the third side plate 17 is connected to the first side plate 12, the first connecting plate 16 and the fifth side plate 141. Optionally, the fourth side plate 18 is connected to the first side plate 12, the second side plate 13, the fifth side plate 141, the sixth side plate 151 and the seventh side plate 152. Optionally, the second connecting plate 19 is connected to the first side plate 12, the first connecting plate 16, the sixth side plate 151 and the eighth side plate 153. Optionally, the second connecting plate 19 includes a third plate 191 and a fourth plate 192, the third plate 191 is connected to the third side plate 17, and the fourth plate 192 is connected to the third plate 191, wherein the third plate 191 extends in a curved manner and the fourth plate 192 extends in a straight line.

[0087] By setting the third side plate 17, the fourth side plate 18 and the second connecting plate 19, the third side plate 17 and the fourth side plate 18 are arranged opposite to each other, the two ends of the third side plate 17 are respectively connected to the outlet pipe 30 and the second connecting plate 19, the end of the second connecting plate 19 away from the third side plate 17 is connected to the intake pipe 50, the third guide plate 43 is connected to the fourth side plate 18, and the distance between the second connecting plate 19 and the fourth side plate 18 gradually decreases from the outlet pipe 30 to the intake pipe 50, so that the volume of the air filter 100 is further reduced without affecting the length of the intake pipe 50, thereby ensuring the intake performance of the air filter 100, which is beneficial to installing the air filter 100 in a limited layout space.

[0088] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0089] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. An air filter for a vehicle, characterized in that: include: A shell body enclosing a receiving cavity, the shell body comprising a first side plate and a second side plate opposite to each other; A filter element is contained in the accommodating cavity, the filter element is connected to the housing and separates the accommodating cavity to form an air outlet cavity; An air outlet pipe connected to the first side plate, the air outlet pipe having an air outlet channel, the air outlet channel being in communication with the air outlet cavity; Wherein, the shell also includes a first connecting plate, which connects the air outlet pipe and the second side plate. The first connecting plate is at least partially opposite to the first side plate. From away from the air outlet pipe to close to the air outlet pipe, the distance between the first connecting plate and the first side plate gradually decreases.

2. The air filter according to claim 1, characterized in that: The first connecting plate includes a first plate and a second plate, the first plate is connected to the second side plate and is opposite to the first side plate, and the second plate is connected to the first plate and the air outlet pipe; An included angle between the first plate and the second side plate is A, and an included angle between the second plate and the second side plate is B, satisfying 90°<B≤A≤150°.

3. The air filter according to claim 1 or 2, characterized in that: The air filter further comprises a flow guide component, which is received in the accommodating cavity and connected to the shell. The flow guide component is suitable for guiding the air to reduce the noise generated by the air impacting the shell.

4. The air filter according to claim 3, characterized in that: The guide assembly includes a first guide plate and a second guide plate, wherein the first guide plate and the second guide plate are both accommodated in the air outlet cavity and are connected to one end of the housing close to the air outlet pipe at a relative interval; From a direction away from the air outlet pipe to a direction close to the air outlet pipe, a distance between the first guide plate and the first side plate gradually decreases, and a distance between the second guide plate and the first side plate gradually decreases.

5. The air filter according to claim 3, characterized in that: The filter element also divides the accommodating cavity to form an air intake cavity. The air filter also includes an air intake pipe. The guide assembly also includes a third guide plate. The air intake pipe is connected to the shell and has an air intake channel. The air intake channel is connected to the air intake cavity. The third guide plate is accommodated in the air intake cavity. From the air intake pipe to the air outlet pipe, the distance between the third guide plate and the air intake pipe gradually increases.

6. The air filter according to claim 5, characterized in that: The minimum distance between the third guide plate and the air intake pipe in the first direction is C, which satisfies 30cm≤C≤70cm; and / or, The minimum distance between the third guide plate and the filter element in the second direction is D, satisfying 5cm≤D≤20cm, and the first direction intersects with the second direction.

7. The air filter according to claim 5, characterized in that: The third guide plate includes a main body and a vibration-damping part. The main body is connected to the shell. The vibration-damping part is arranged on a surface of the main body facing the air inlet cavity.

8. The air filter according to claim 5, characterized in that: The third guide plate divides the accommodating cavity to form a resonance cavity, the resonance cavity is connected to the air inlet cavity, at least part of the air in the air inlet cavity is suitable for entering the resonance cavity, and the resonance cavity is suitable for reducing vibrations generated when air flows.

9. The air filter according to claim 8, characterized in that: The guide assembly also includes a connecting pipe, one end of which is connected to the third guide plate, and the other end extends into the resonance cavity. The connecting pipe has a connecting channel, which connects the air inlet cavity and the resonance cavity, and the connecting pipe is bent and extended.

10. The air filter according to claim 5, characterized in that: The housing further comprises a third side plate, a fourth side plate and a second connecting plate, the third side plate and the fourth side plate are arranged opposite to each other, two ends of the third side plate are respectively connected to the air outlet pipe and the second connecting plate, one end of the second connecting plate away from the third side plate is connected to the air inlet pipe, and the third guide plate is connected to the fourth side plate; In a direction from the air outlet pipe to the air inlet pipe, a distance between the second connecting plate and the fourth side plate gradually decreases.

11. An engine assembly, characterized in that: It comprises an engine and an air filter as claimed in any one of claims 1 to 10, wherein an air outlet pipe of the air filter is connected to a cylinder of the engine.

12. A vehicle, characterized in that: Comprising the engine assembly as claimed in claim 11.

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