Engine air inlet assembly and vehicle

Abstract

The utility model discloses an engine air inlet assembly and a vehicle. The engine air inlet assembly comprises an engine room, an air inlet pipe, an air outlet pipe and an air outlet pipe. The engine room is internally provided with an air entraining connector and an air filter. One end of the machine cover is rotatably arranged in the engine room, the machine cover can selectively open and close the engine room, an air entraining channel is arranged in the machine cover, when the engine room is closed by the machine cover, an air inlet of the air entraining channel is communicated with an air outlet of the air entraining connector, and an air outlet of the air entraining channel is communicated with an air inlet of the air filter. Therefore, one end of the machine cover is rotatably arranged in the engine room, and the air entraining channel is arranged in the machine cover, so that the machine cover can selectively open and close the engine room to control the communication among the air entraining connector, the air entraining channel and the air filter, the compactness and the attractiveness of the vehicle structure can be improved, the vehicle space can be saved, the air flow rate can be reduced, and the vehicle safety can be improved. And meanwhile, impurities entering an air inlet system are reduced, and the service life of the air filter can be prolonged.

Description

Technical Field

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

[0002] With the development of science and technology and the improvement of people's living standards, vehicles have become an indispensable means of transportation. Vehicles are equipped with an intake system. The air filter assembly and the air duct are the core of the vehicle's intake system. Their main function is to continuously provide clean air to the engine.

[0003] In the prior art, the layout of the intake duct in most vehicles is not only limited by the large cabin space occupied by the long duct, but also by factors such as aesthetics and visibility, which restrict the cross-sectional area of ​​the duct. This increases intake resistance and compromises some performance. Furthermore, the intake system primarily relies on filter elements for filtration, so the filter's dust holding capacity determines its lifespan. This lifespan is significantly reduced when the vehicle is exposed to harsh environments. In severe cases, the filter's dust holding capacity reaches its limit within a few hours or minutes, necessitating replacement. Failure to promptly replace the filter can impact engine air intake, leading to powertrain failure, power loss, and, in severe cases, engine failure. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide an engine air intake assembly that not only saves cabin space but also reduces gas flow rate and air resistance, thereby reducing the entry of impurities into the intake duct.

[0005] The utility model further provides a vehicle.

[0006] According to the utility model, the engine air intake assembly includes: a cabin, in which an air bleed joint and an air filter are provided, the air inlet of the air bleed joint is suitable for being connected to the outside of the vehicle, and the air outlet of the air filter is suitable for being connected to the engine; a hood, one end of which is rotatably provided on the cabin, and the hood can selectively open and close the cabin, an air bleed channel is provided in the hood, and when the hood closes the cabin, the air inlet of the air bleed channel is connected to the air outlet of the air bleed joint, and the air outlet of the air bleed channel is connected to the air inlet of the air filter.

[0007] Therefore, by rotatably setting one end of the hood in the engine compartment and providing an air bleed channel inside the hood, the hood can selectively open and close the engine compartment to control the connectivity between the air bleed connector, the air bleed channel and the air filter. This not only improves the compactness and aesthetics of the vehicle structure and saves vehicle space, but also slows down the gas flow rate, reduces the intake resistance, and reduces the entry of impurities into the intake system, thereby extending the service life of the air filter.

[0008] In some examples of the present invention, the interior of the cover is hollowed out to form the air duct, which can improve space utilization.

[0009] In some examples of the present invention, an air intake protrusion and an air outlet protrusion are provided on the lower side of the hood, an air intake groove connected to the air bleed channel is provided in the air intake protrusion, and an air outlet groove connected to the air bleed channel is provided in the air outlet protrusion. When the hood closes the cabin, the air intake protrusion extends into the air outlet of the air bleed joint, the air intake groove is connected to the air outlet of the air bleed joint, and the air outlet protrusion extends into the air inlet of the air filter, which can prevent the hood from shifting or shaking after the cabin is closed, and can ensure the accuracy and stability of the connection between the air bleed joint, the air bleed channel and the air filter.

[0010] In some examples of the present invention, the engine air intake assembly also includes an air outlet baffle and an air intake baffle, one end of the air outlet baffle is rotatably set at the air outlet of the air bleed joint to selectively open and close the air outlet of the air bleed joint, and when the engine cover closes the cabin, the air intake protrusion pushes the air outlet baffle downward to open the air outlet of the air bleed joint; one end of the air intake baffle is rotatably set at the air inlet of the air filter to selectively open and close the air inlet of the air filter, and when the engine cover closes the cabin, the air outlet protrusion pushes the air intake baffle downward to open the air inlet of the air filter, and the foreign object blocking function can be selectively activated by controlling the opening and closing state of the cabin.

[0011] In some examples of the present invention, an air outlet sealing ring is provided on the periphery of the air outlet of the air bleed joint, and when the engine cover closes the engine compartment, the air outlet sealing ring abuts and seals with the lower side of the engine cover; and / or an air inlet sealing ring is provided on the periphery of the air inlet of the air filter, and when the engine cover closes the engine compartment, the air inlet sealing ring abuts and seals with the lower side of the engine cover, which can improve the sealing performance of the engine intake assembly.

[0012] In some examples of the present invention, the engine air intake assembly further includes silencer cotton, which is arranged in the air inlet passage, and can enhance the noise reduction effect of the engine air intake assembly and enhance the NVH performance of the vehicle.

[0013] In some examples of the present invention, the engine air intake assembly also includes a silencer plate, which is arranged in the air inlet channel. The silencer plate is arc-shaped and has multiple silencer holes. At least two of the multiple silencer holes have different apertures, which can not only improve the noise reduction effect of the engine air intake assembly, but also achieve the absorption of noise of different frequencies.

[0014] In some examples of the present invention, there are multiple silencers, and the multiple silencers are arranged at intervals in the air inlet channel, which can further improve the noise reduction effect of the engine intake assembly.

[0015] In some examples of the present invention, the engine air intake assembly also includes a one-way valve, and the engine cover is provided with an impurity outlet connected to the air inlet channel. The one-way valve is arranged at the impurity outlet, and the one-way valve is suitable for allowing impurities in the air inlet channel to be discharged through the impurity outlet. Not only can impurities in the cabin be discharged through the one-way valve, but also impurities outside the cabin can be effectively blocked from entering the cabin through the impurity outlet.

[0016] A vehicle according to an embodiment of the present invention includes: the engine air intake assembly described above.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of an engine intake assembly according to an embodiment of the present utility model;

[0020] Figure 2 is a schematic diagram of an engine intake assembly according to an embodiment of the present utility model;

[0021] Figure 3 is a cross-sectional view of an engine intake assembly according to an embodiment of the present utility model;

[0022] Figure 4 is a schematic diagram of an engine intake assembly according to an embodiment of the present utility model;

[0023] Figure 5 It is a partial schematic diagram of an air bleed joint according to an embodiment of the present utility model;

[0024] Figure 6 It is a partial schematic diagram of an air filter according to an embodiment of the present utility model.

[0025] Reference numerals:

[0026] 100. Engine air intake assembly;

[0027] 10. Cabin; 101. Bleed air connector; 102. Air filter; 103. Outlet seal; 104. Inlet seal;

[0028] 20. Engine cover; 202. Air inlet protrusion; 2021. Air inlet slot; 203. Air outlet protrusion; 2031. Air outlet slot;

[0029] 30. Air outlet baffle; 40. Air inlet baffle; 50. Sound-absorbing cotton;

[0030] 60. Silencer plate; 601. Silencer hole;

[0031] 70. One-way valve. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0033] Reference below Figures 1-6 The engine air intake assembly 100 according to an embodiment of the present invention is described. The engine air intake assembly 100 can be applied to a vehicle.

[0034] Combine Figures 1-6 As shown, the engine air intake assembly 100 according to the present invention may mainly include: a nacelle 10 and a hood 20. The nacelle 10 is provided with an air bleed connector 101 and an air filter 102.

[0035] Furthermore, the air inlet of the air bleed connector 101 is adapted to be connected to the outside of the vehicle. The main function of the air bleed connector 101 is to draw in fresh air from the external environment of the vehicle and guide it into the engine to ensure the normal operation of the engine.

[0036] Furthermore, the air outlet of the air filter 102 is adapted to be connected to the engine. The main function of the air filter 102 is to filter out impurities such as dust and sand in the air before the air enters the engine, so as to prevent these impurities from entering the interior of the engine and causing damage to its internal parts or malfunction.

[0037] With such configuration, the air bleed connector 101 and the air filter 102 work together to provide pure air to the engine, thereby ensuring good engine performance and extending the service life of the engine.

[0038] Furthermore, one end of the hood 20 is rotatably provided on the cabin 10, and the hood 20 can selectively open and close the cabin 10. By driving the hood 20 to rotate relative to the cabin 10, the opening and closing of the cabin 10 can be selectively controlled to selectively control the connectivity of the air bleed connector 101, the air bleed channel, and the air filter 102.

[0039] Furthermore, an air duct is provided in the hood 20, and the air duct is integrated with the hood 20. This not only improves the compactness and aesthetics of the vehicle structure, saves space in the vehicle, simplifies the installation and layout of the air duct, but also increases the cross-sectional area of ​​the air duct, slows down the gas flow rate, reduces the intake resistance, and at the same time reduces impurities entering the air filter 102, thereby extending the service life of the air filter 102.

[0040] Furthermore, when the bonnet 20 closes the cabin 10, the air inlet of the air bleed channel is communicated with the air outlet of the air bleed connector 101, and the air outlet of the air bleed channel is communicated with the air inlet of the air filter 102. Specifically, the air inlet of the air bleed channel is connected to the air outlet of the air bleed connector 101, and the air outlet of the air bleed channel is connected to the air inlet of the air filter 102, so that an air intake line can be established between the air outlet of the air bleed connector 101 and the air inlet of the air filter 102, to ensure that the air introduced by the air bleed connector 101 can be transmitted to the air inlet of the air filter 102 through the air bleed channel, and then the air is filtered by the air filter 102 and then transported to the engine, so as to ensure the normal operation of the engine intake assembly 100 and the normal driving of the vehicle. When the hood 20 closes the cabin 10, the air inlet of the air duct is connected to the air outlet of the air connector 101, and the air outlet of the air duct is connected to the air inlet of the air filter 102. The air duct is used for air transmission at this time, so that the gas output from the air outlet of the air connector 101 is transmitted to the air inlet of the air filter 102 through the air duct, and the air filter 102 then transmits the filtered air to the engine. At this time, the engine works normally; when the hood 20 opens the cabin 10, the air inlet of the air duct is separated from the air outlet of the air connector 101, and the air outlet of the air duct is separated from the air inlet of the air filter 102. There is no communication between the air outlet of the air connector 101, the air duct and the air inlet of the air filter 102. At this time, the intake system does not work and the engine does not run.

[0041] Therefore, by rotatably setting one end of the hood 20 on the engine compartment 10 and setting an air bleed channel in the hood 20, the hood 20 can selectively open and close the engine compartment 10 to control the connectivity between the air bleed connector 101, the air bleed channel and the air filter 102. This not only improves the compactness and aesthetics of the vehicle structure and saves space in the vehicle, but also slows down the gas flow rate, reduces the intake resistance, and reduces the entry of impurities into the intake system, thereby extending the service life of the air filter 102.

[0042] Combine Figure 1 、 Figure 2 and Figure 3 As shown, the interior of the hood 20 is hollowed to form an air bleed passage. Specifically, by creating a hollow interior of the hood 20, the hollow area within the hood 20 has excellent air flow characteristics, forming an air transmission passage, i.e., an air bleed passage, within the hollow area of ​​the hood 20. This not only optimizes the air flow path, reduces gas flow rate, and reduces intake resistance, but also reduces the entry of impurities into the intake system, extending the service life of the air filter 102. Furthermore, locating the air bleed passage within the hood 20 improves the compactness of the vehicle structure and increases space utilization.

[0043] Combine Figure 1 、 Figure 3 and Figure 4 As shown, an air intake protrusion 202 and an air outlet protrusion 203 are provided on the lower side of the hood 20, an air intake groove 2021 connected to the air bleed channel is provided in the air intake protrusion 202, and an air outlet groove 2031 connected to the air bleed channel is provided in the air outlet protrusion 203. When the hood 20 closes the cabin 10, the air intake protrusion 202 extends into the air outlet of the air bleed connector 101, the air intake groove 2021 is connected to the air outlet of the air bleed connector, and the air outlet protrusion 203 extends into the air intake of the air filter 102. Specifically, an air inlet protrusion 202 is provided at the air inlet of the air bleed channel to form an air inlet groove 2021, and an air outlet protrusion 203 is provided at the air outlet of the air bleed channel to form an air outlet groove 2031. When the engine cover 20 closes the cabin 10, the air inlet protrusion 202 extends into the air outlet of the air bleed connector 101, and the air outlet protrusion 203 extends into the air inlet of the air filter 102. At this time, the air inlet groove 2021 is connected to the air outlet of the air bleed connector 101, and the air outlet groove 2031 is connected to the air inlet of the air filter 102. An air passage is formed between the air bleed connector 101, the air bleed channel and the air filter 102. The raised structure realizes the connection between the air bleed channel and the air bleed connector 101 and the air filter 102, which not only prevents the hood 20 from shifting or shaking after the hood 20 closes the cabin 10, but also ensures the accuracy and stability of the connection between the air bleed connector 101, the air bleed channel and the air filter 102, and can also prevent gas leakage at the connection between the air outlet of the air bleed connector 101 and the air inlet of the air bleed channel, as well as at the connection between the air outlet of the air bleed channel and the air inlet of the air filter 102, thereby improving the sealing of the engine air intake assembly 100 and improving the overall stability and reliability of the engine air intake assembly 100.

[0044] Combine Figure 1 、 Figure 5 and Figure 6As shown, the engine air intake assembly 100 also includes an air outlet baffle 30 and an air intake baffle 40. One end of the air outlet baffle 30 is rotatably disposed at the air outlet of the air bleed connector 101 to selectively open and close the air outlet of the air bleed connector 101. When the engine cover 20 closes the cabin 10, the air intake protrusion 202 pushes the air outlet baffle 30 downward to open the air outlet of the air bleed connector 101. Specifically, when the hood 20 closes the cabin 10, the air intake protrusion 202 extends into the air outlet of the air bleed connector 101, driving the air outlet baffle 30 to rotate downward to open the air outlet of the air bleed connector 101, so that the air outlet of the air bleed connector 101 is connected to the air inlet of the air bleed channel; when the hood 20 opens the cabin 10, the air intake protrusion 202 is not in contact with the air outlet baffle 30. At this time, the air outlet baffle 30 makes the air outlet of the air bleed connector 101 in a closed state to block foreign matter, and when the air outlet baffle 30 separates from the air intake protrusion 202 and the air outlet baffle 30 automatically closes, some impurities above the air outlet baffle 30 at the air outlet of the air bleed connector 101 can be discharged.

[0045] Furthermore, one end of the air intake baffle 40 is rotatably disposed on the air intake port of the air filter 102 to selectively open and close the air intake port of the air filter 102. When the engine cover 20 closes the cabin 10, the air outlet protrusion 203 pushes the air intake baffle 40 downward to open the air intake port of the air filter 102. Specifically, when the hood 20 closes the cabin 10, the air outlet protrusion 203 extends into the air inlet of the air filter 102, driving the air inlet baffle 40 to rotate downward to open the air inlet of the air filter 102, so that the air outlet of the air duct is connected to the air inlet of the air filter 102; when the hood 20 opens the cabin 10, the air outlet protrusion 203 does not contact the air inlet baffle 40. At this time, the air inlet baffle 40 makes the air inlet of the air filter 102 in a closed state to prevent foreign matter from entering the air filter 102, and when the air inlet baffle 40 separates from the air outlet protrusion 203 and the air inlet baffle 40 automatically closes, some impurities above the air inlet baffle 40 at the air inlet of the air filter 102 can be discharged.

[0046] With such a configuration, the position and state of the air outlet baffle 30 and the air inlet baffle 40 can be controlled by controlling the opening and closing state of the engine compartment 10, and the opening and closing state of the air outlet of the air bleed connector 101 and the air inlet of the air filter 102 can be controlled. This can help the vehicle adjust its working state according to the specific environment and specific needs. The foreign matter blocking function can be selectively activated by controlling the opening and closing state of the engine compartment 10 to prevent excessive impurities from clogging or impurities from entering the engine and causing engine failure, which can effectively improve the stability and reliability of the vehicle when driving in harsh environments.

[0047] In some embodiments of the present invention, a maximum angle limiting component may be added at the rotation axis of the air outlet baffle 30 and the air intake baffle 40 to limit the rotation range of the air outlet baffle 30 and the air intake baffle 40, thereby preventing the air outlet baffle 30 and the air intake baffle 40 from excessively rotating and causing damage to the structure of the engine intake assembly 100.

[0048] Combine Figure 1 、 Figure 5 and Figure 6 As shown, an air outlet sealing ring 103 is provided on the periphery of the air outlet of the air bleed joint 101. When the engine cover 20 closes the cabin 10, the air outlet sealing ring 103 abuts and seals against the lower side of the engine cover 20; and / or

[0049] An air intake sealing ring 104 is provided on the outer periphery of the air intake port of the air filter 102 . When the engine cover 20 closes the cabin 10 , the air intake sealing ring 104 abuts against and seals against the lower side of the engine cover 20 .

[0050] With such arrangement, the air outlet sealing ring 103 and the air inlet sealing ring 104 can play a sealing role after the engine cover 20 closes the engine compartment 10, not only preventing impurities in the engine compartment 10 from entering the air bleed connector 101 and the air filter 102 through the gap, but also establishing a reliable air passage between the air bleed connector 101, the air bleed channel and the air filter 102 to prevent the problem of air leakage. In addition, the arrangement of the air outlet sealing ring 103 and the air inlet sealing ring 104 can also prevent the air inlet protrusion 202 and the air bleed connector from leaking. The shaking or loosening between the air outlet of 101, and between the air outlet protrusion 203 and the air inlet of the air filter 102 can reduce the friction between the air inlet protrusion 202 and the air outlet of the air bleed connector 101, and between the air outlet protrusion 203 and the air inlet of the air filter 102, and can prevent the lower side of the hood 20 from colliding or bumping with the upper side of the air outlet of the air bleed connector 101 or the upper side of the air inlet of the air filter 102, thereby reducing the generation of noise and improving the stability and reliability of the vehicle structure.

[0051] Combine Figure 1 、 Figure 2 and Figure 3 As shown, the engine air intake assembly 100 also includes a sound-absorbing cotton 50, which is disposed in the air bleed passage. Specifically, the sound-absorbing cotton 50 is disposed in the air bleed passage. This not only absorbs the sound energy in the air bleed passage but also prevents the propagation of sound in the air bleed passage, thereby reducing or eliminating noise. This improves the sound-absorbing performance of the engine air intake assembly 100, enhances the NVH performance of the vehicle, and enhances the driving experience of passengers.

[0052] Combine Figure 1 、 Figure 2 and Figure 3As shown, the engine air intake assembly 100 also includes a silencer plate 60, which is arranged in the air inlet channel. The silencer plate 60 is arc-shaped and has multiple silencer holes 601. At least two of the multiple silencer holes 601 have different apertures.

[0053] Specifically, by setting an arc-shaped silencer 60 in the air inlet channel, it can not only effectively absorb or attenuate the sound energy in the air inlet channel, but also optimize the sound diffusion path, help to evenly distribute the sound energy, optimize the noise reduction effect of the engine intake assembly 100, and improve the NVH performance of the vehicle.

[0054] Furthermore, a plurality of silencer holes 601 are provided on the silencer plate 60, and at least two of the plurality of silencer holes 601 have different apertures. This not only further improves the silencer performance of the silencer plate 60, but also enables the silencer system to absorb sounds of a wider frequency range to effectively deal with a variety of noise sources. In addition, the provision of the silencer holes 601 can also help balance the air pressure and reduce airflow resistance.

[0055] Combine Figure 1 and Figure 2 As shown, multiple silencer panels 60 are spaced apart in the air intake duct. Specifically, each silencer panel 60 can absorb and block a certain amount of sound. The spacing of multiple silencer panels 60 effectively enhances noise attenuation. Furthermore, different materials and structures of silencer panels 60 may better absorb sounds of different frequencies. Spacing multiple silencer panels 60 allows them to complement each other, providing more comprehensive coverage for noise of various frequencies. This arrangement effectively enhances the noise reduction of the engine intake assembly 100 and improves the vehicle's NVH performance.

[0056] Combine Figure 1 、 Figure 3 and Figure 4 As shown, the engine air intake assembly 100 further includes a one-way valve 70. The bonnet 20 is provided with an impurity outlet connected to the bleed air passage. The one-way valve 70 is disposed at the impurity outlet and is adapted to allow impurities in the bleed air passage to be discharged through the impurity outlet. Specifically, the one-way valve 70 only allows the medium to flow in one direction and prevents it from flowing in the opposite direction. Disposing the one-way valve 70 at the impurity outlet allows impurities in the bleed air passage to be discharged through the impurity outlet. This not only allows impurities within the engine compartment 10 to be discharged through the one-way valve 70, but also effectively prevents impurities outside the engine compartment 10 from entering the engine compartment 10 through the impurity outlet. This can reduce the amount of impurities within the engine compartment 10, alleviate or prevent damage to the internal structure of the engine compartment 10 caused by impurities, improve the stability and reliability of the vehicle structure, and extend the service life of the internal structure of the engine compartment 10.

[0057] Combine Figure 1 、 Figure 2 and Figure 3 As shown, there are multiple impurity outlets, each of which is spaced apart. There are also multiple one-way valves 70, each corresponding to each of the multiple impurity outlets. Specifically, by spacing out multiple impurity outlets and providing a corresponding one-way valve 70 at each impurity outlet, impurities can be discharged from multiple areas or locations, effectively improving the efficiency of impurity discharge within the nacelle 10, reducing or preventing damage to the internal structures of the nacelle 10 caused by impurities, and reducing the amount of impurities entering the air filter 102 and the engine. This further improves the stability and reliability of the vehicle structure and extends the service life of the vehicle internal structures.

[0058] The vehicle according to the present invention may primarily include the aforementioned engine intake assembly. Specifically, because the engine intake assembly 100 has a more compact structure and excellent operating performance, its application in a vehicle not only saves space and improves space utilization, but also slows gas flow and reduces intake resistance. It also reduces the entry of impurities into the intake system, extending the service life of the air filter 102, preventing the engine's operating performance from being affected by impurities, and improving the stability and reliability of the vehicle structure, noise reduction, and NVH performance.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0060] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An engine air intake assembly, characterized in that: include: An engine compartment (10), wherein an air bleed connector (101) and an air filter (102) are provided in the engine compartment (10), an air inlet of the air bleed connector (101) is adapted to be connected to the outside of the vehicle (100), and an air outlet of the air filter (102) is adapted to be connected to the engine; A cover (20), one end of which is rotatably disposed on the cabin (10), and the cover (20) can selectively open and close the cabin (10). An air bleed passage is provided in the cover (20), and when the cover (20) closes the cabin (10), an air inlet of the air bleed passage is communicated with an air outlet of the air bleed connector (101), and an air outlet of the air bleed passage is communicated with an air inlet of the air filter (102).

2. The engine air intake assembly according to claim 1, characterized in that: The interior of the machine cover (20) is hollow to form the air inlet channel.

3. The engine air intake assembly according to claim 1, characterized in that: An air inlet protrusion (202) and an air outlet protrusion (203) are provided on the lower side of the engine cover (20); an air inlet groove (2021) connected to the air inlet passage is provided in the air inlet protrusion (202); an air outlet groove (2031) connected to the air inlet passage is provided in the air outlet protrusion (203); when the engine cover (20) closes the cabin (10), the air inlet protrusion (202) extends into the air outlet of the air inlet joint (101), the air inlet groove (2021) is connected to the air outlet of the air inlet joint (101), and the air outlet protrusion (203) extends into the air inlet of the air filter (102).

4. The engine air intake assembly according to claim 3, characterized in that: It also includes an air outlet baffle (30) and an air inlet baffle (40), one end of the air outlet baffle (30) being rotatably disposed at the air outlet of the air bleed connector (101) to selectively open and close the air outlet of the air bleed connector (101); when the engine cover (20) closes the cabin (10), the air inlet protrusion (202) pushes the air outlet baffle (30) downward to open the air outlet of the air bleed connector (101); One end of the air intake baffle (40) is rotatably arranged at the air intake port of the air filter (102) to selectively open and close the air intake port of the air filter (102); when the engine cover (20) closes the engine compartment (10), the air outlet protrusion (203) pushes the air intake baffle (40) downward to open the air intake port of the air filter (102).

5. The engine air intake assembly according to claim 3, characterized in that: An air outlet sealing ring (103) is provided on the outer periphery of the air outlet of the air bleed joint (101), and when the engine cover (20) closes the engine cabin (10), the air outlet sealing ring (103) abuts and seals against the lower side of the engine cover (20); and / or An air intake sealing ring (104) is provided on the outer periphery of the air intake port of the air filter (102). When the engine cover (20) closes the engine compartment (10), the air intake sealing ring (104) abuts and seals against the lower side of the engine cover (20).

6. The engine air intake assembly according to claim 1, characterized in that: It also includes silencer cotton (50), which is arranged in the air duct.

7. The engine air intake assembly according to claim 1, characterized in that: It also includes a silencer plate (60), which is arranged in the air duct, and is arc-shaped. The silencer plate (60) is provided with a plurality of silencer holes (601), and at least two of the plurality of silencer holes (601) have different apertures.

8. The engine air intake assembly according to claim 7, characterized in that: There are a plurality of silencer plates (60), and the plurality of silencer plates (60) are arranged at intervals in the air duct.

9. The engine air intake assembly according to claim 1, characterized in that: The machine cover (20) is provided with an impurity outlet connected to the air inlet passage. The one-way valve (70) is arranged at the impurity outlet. The one-way valve (70) is suitable for allowing impurities in the air inlet passage to be discharged through the impurity outlet.

10. A vehicle, characterized in that: include: The engine air intake assembly according to any one of claims 1 to 9.

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