Air filter, vehicle and filter element cleaning method

Abstract

The invention discloses an air filter, a vehicle and a filter element cleaning method. The technical problem that in the prior art, an air filter element needs to be frequently replaced in a severe environment is solved. The air filter comprises a shell, a filter element and a cleaning device. The shell is provided with an air outlet and an air inlet. The filter element divides an inner cavity of the shell into a first cavity and a second cavity. The air inlet is communicated with the first cavity, and the air outlet is communicated with the second cavity. The cleaning device comprises a wind power assembly, a power assembly and a nozzle. The nozzle is located in the second cavity, the wind power assembly is used for supplying air to the nozzle, and the power assembly is used for driving the nozzle to move in the second cavity. The wind power assembly of the air filter can jet airflow to the filter element through the spray head. The air flow can be used for reversely blowing the filter element and blowing off dust and impurities attached to the surface of the filter element, so that the filtering performance of the filter element is recovered, the frequency of frequently replacing the filter element due to blockage of the filter element is reduced, the use cost is reduced, and the service life of the filter element is prolonged.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of engine cleaning, and particularly relates to an air filter, a vehicle and a filter element cleaning method. BACKGROUND

[0002] The engine air filter element is an important component in the engine system, which mainly functions to filter the air entering the engine interior, filter out dust and impurity particles in the air, ensure that the air entering the engine is sufficient, clean and dry, and thus guarantee the normal operation and performance stability of the engine.

[0003] In the prior art, the air filter element needs to be replaced generally after 15,000 kilometers of driving or about one year. However, the specific replacement period is greatly affected by the use and driving environment of the vehicle. When the vehicle is often driven in a place with much dust or serious haze, the air filter element will be blocked by dust and impurities more quickly, resulting in a decline in the filtering effect, and thus the replacement period needs to be shortened. However, in these harsh environments, frequent replacement of the air filter element is not only inconvenient to operate, but also increases the use cost and time cost. SUMMARY

[0004] To solve the above technical problems, the application discloses an air filter, a vehicle and a filter element cleaning method.

[0005] The technical scheme adopted to achieve the purpose of the application is as follows.

[0006] The shell is provided with an air outlet and an air inlet;

[0007] The filter element is installed in the shell, and the filter element divides the inner cavity of the shell into a first cavity and a second cavity, the air inlet is in communication with the first cavity, and the air outlet is in communication with the second cavity; and

[0008] The cleaning device comprises a wind power assembly, a power assembly and a spray head, the spray head is located in the second cavity, the spray head is in communication with the wind power assembly, the wind power assembly is used for supplying air to the spray head, and the power assembly is used for driving the spray head to move in the second cavity.

[0009] In some embodiments, the power assembly comprises a first driving structure and a second driving structure, the first driving structure is installed on the shell, the second driving structure is installed on the first driving structure, the spray head is installed on the second driving structure, the first driving structure is used for driving the second driving structure to move in a first direction, and the second driving structure is used for driving the spray head to move in a second direction perpendicular to the first direction.

[0010] In some embodiments, the first driving structure comprises a motor, a screw rod and a sliding frame, the screw rod is rotationally connected with the shell along the first direction, the motor is drivingly connected with the screw rod, the sliding frame is slidingly connected with the shell, and the sliding frame is threadedly connected with the screw rod.

[0011] In some embodiments, the second driving structure comprises a rack, a control gear, a screw and a sliding block, the rack is mounted on the shell along the first direction, the control gear is rotationally connected with the sliding frame, and the control gear is engaged with the rack, the screw is connected with the control gear, the sliding block is slidingly connected with the sliding frame along the second direction, and the sliding block is threadedly connected with the screw.

[0012] In some embodiments, the power assembly further comprises a speed increaser, the speed increaser is mounted between the control gear and the screw, and the speed increaser is used to control the transmission ratio of the control gear and the screw.

[0013] In some embodiments, the shell is provided with a mounting opening in communication with the second cavity;

[0014] The wind power assembly comprises a fan, a hose and a baffle, the fan is mounted at the mounting opening, the fan is in communication with the spray head through the hose, and the baffle is rotationally connected with the shell, and the baffle is rotated to open or close the mounting opening.

[0015] In some embodiments, a pressure regulating device is further included, the pressure regulating device is in communication with the first cavity, and the pressure regulating device is used to blow air to the air inlet.

[0016] The pressure regulating device is in communication with the second cavity, and when the pressure of the second cavity is lower than a preset value, the pressure regulating device is used to supplement air to the second cavity.

[0017] In some embodiments, the pressure regulating device comprises an air compressor, a blowing pipe, a blowing valve, a supplement pipe and a supplement valve, the air compressor is in communication with the first cavity through the blowing pipe, and the blowing valve is mounted on the blowing pipe; the air compressor is in communication with the second cavity through the supplement pipe, and the supplement valve is mounted on the supplement pipe.

[0018] The technical scheme adopted to achieve the purpose of the present application is that, in the second aspect of the present application, the present application further discloses a vehicle comprising a vehicle body and the air filter of the first aspect, and the air filter is mounted on the vehicle body.

[0019] The technical scheme adopted to achieve the object of the present application is as follows: in the third aspect of the present application, the present application further discloses a filter core cleaning method based on the air filter of the first aspect, comprising the following steps:

[0020] acquiring pressure data of the first cavity and the second cavity, and acquiring the working condition of the engine;

[0021] in the case that the engine is in the unstarted state and the pressure difference between the first cavity and the second cavity is greater than or equal to the first preset value, controlling the air supply of the nozzle by the wind power assembly, and controlling the air blowing of the pressure regulating device towards the first cavity;

[0022] in the case that the engine is in the started state and the pressure of the second cavity is less than the second preset value, controlling the air supply of the pressure regulating device towards the second cavity.

[0023] As can be seen from the above technical scheme, the air filter disclosed by the present application comprises a shell, a filter core and a cleaning device. The shell is provided with an air outlet and an air inlet. The filter core is installed in the shell, and the filter core separates the inner cavity of the shell into a first cavity and a second cavity. The air inlet is in communication with the first cavity, and the air outlet is in communication with the second cavity. The cleaning device comprises a wind power assembly, a power assembly and a nozzle. The nozzle is located in the second cavity, the nozzle is in communication with the wind power assembly, the wind power assembly is used for air supply of the nozzle, and the power assembly is used for driving the nozzle to move in the second cavity.

[0024] In the working process of the air filter disclosed by the present application, when the filter core surface accumulates a certain amount of dust affecting the filtering effect, the wind power assembly can spray air flow to the filter core through the nozzle. This air flow can blow off the dust and impurities attached to the surface of the filter core, thereby restoring part of the filtering performance of the filter core, reducing the frequency of replacing the filter core due to filter core blockage, reducing the use cost, prolonging the service life of the filter core. The power assembly can drive the nozzle to move in the second cavity. This makes the nozzle can fully blow the different parts of the filter core, avoiding the problem that the filter core cannot be effectively cleaned due to the fixed position of the nozzle. Through the omnidirectional movement of the nozzle, the dust on the surface of the filter core can be more evenly and completely removed, further improving the cleaning effect and ensuring that the filter core can maintain good filtering performance throughout the use process. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to make the person skilled in the art to which the present application belongs more clearly understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor are within the scope of protection of the present application.

[0026] Figure 1 Schematic view of the air filter in one or more embodiments of the present application;

[0027] Figure 2 Schematic view of the air filter in one or more embodiments of the present application; Figure 1 Schematic view of the air filter in one or more embodiments of the present application;

[0028] Figure 3 Schematic view of the air filter in one or more embodiments of the present application; Figure 2 Schematic view of the air filter in one or more embodiments of the present application;

[0029] Figure 4 Schematic view of the air filter in one or more embodiments of the present application; Figure 1 Schematic view of the air filter in one or more embodiments of the present application;

[0030] Figure 5 Schematic view of the air filter in one or more embodiments of the present application; Figure 4 Schematic view of the air filter in one or more embodiments of the present application;

[0031] Figure 6 Schematic view of the air filter in one or more embodiments of the present application; Figure 1 Schematic view of the air filter in one or more embodiments of the present application;

[0032] Figure 7 Schematic view of the air filter in one or more embodiments of the present application; Figure 6 Schematic view of the air filter in one or more embodiments of the present application.

[0033] Legend: 100, housing; 110, air inlet; 120, air outlet; 130, first cavity; 140, second cavity; 150, cover; 160, base; 170, support plate; 200, pressure regulating device; 210, air compressor; 220, blowing pipe; 230, blowing valve; 240, supplement pipe; 250, supplement valve; 300, cleaning device; 310, wind power assembly; 311, fan; 312, hose; 313, baffle; 320, power assembly; 321, first driving structure; 3211, motor; 3212, screw rod; 3213, sliding frame; 322, second driving structure; 3221, rack; 3222, control gear; 3223, lead screw; 3224, sliding block; 323, speed increaser; 330, nozzle; 400, filter element. DETAILED DESCRIPTION

[0034] In order to make the skilled in the art to which the present application belongs more clearly understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0035] In addition, the reference numbers and / or reference letters can be repeated in different examples in the present application, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed per se. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0036] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0037] The embodiments of the present application disclose an air filter, a vehicle and a filter element cleaning method, which can solve the technical problem that the air filter element needs to be frequently replaced in the prior art in a harsh environment, thereby prolonging the service life, reducing the use cost and maintenance difficulty.

[0038] The technical solutions of the present application will be described in detail below through specific embodiments:

[0039] Referring to Figure 1 , Figure 3 , Figure 5 and Figure 6 , in the first aspect of the present application, an air filter is disclosed, which comprises a shell 100, a filter element 400 and a cleaning device 300. The shell 100 is provided with an air outlet 120 and an air inlet 110. The filter element 400 is installed in the shell 100, and the filter element 400 divides the inner cavity of the shell 100 into a first cavity 130 and a second cavity 140. The air inlet 110 communicates with the first cavity 130, and the air outlet 120 communicates with the second cavity 140. The cleaning device 300 comprises a wind power assembly 310, a power assembly 320 and a spray head 330. The spray head 330 is located in the second cavity 140, the spray head 330 communicates with the wind power assembly 310, the wind power assembly 310 is used for supplying air to the spray head 330, and the power assembly 320 is used for driving the spray head 330 to move in the second cavity 140.

[0040] The gas enters the first cavity 130 through the gas inlet 110. After being filtered by the filter element 400, most of the dust and impurities are filtered out, and the clean gas passes through the filter element 400 and enters the second cavity 140, and then enters the engine through the gas outlet 120 to supply gas to the engine.

[0041] In the working process of the air filter disclosed in the embodiment, when the filter element 400 accumulates a certain amount of dust on the surface and affects the filtering effect, the air flow can be sprayed to the filter element 400 by the nozzle 330 through the air force assembly 310. This air flow can blow off the dust and impurities attached to the surface of the filter element 400, thereby restoring part of the filtering performance of the filter element 400, reducing the frequency of replacing the filter element 400 due to blockage of the filter element 400, reducing the use cost, and prolonging the service life of the filter element 400. The power assembly 320 can drive the nozzle 330 to move in the second cavity 140. This allows the nozzle 330 to comprehensively blow off different parts of the filter element 400, avoiding the problem that the filter element 400 cannot be effectively cleaned in some areas due to the fixed position of the nozzle 330. Through the omnidirectional movement of the nozzle 330, the dust on the surface of the filter element 400 can be more uniformly and completely removed, further improving the cleaning effect and ensuring that the filter element 400 can maintain good filtering performance throughout the use process.

[0042] Referring to Figure 2 and Figure 3 In one embodiment, the shell 100 includes a base 160 and a cover 150. The gas outlet 120 is arranged on the base 160, and the gas inlet 110 is arranged on the cover 150. The cover 150 is connected to the base 160 and is buckled with the base 160 to form a filter cavity. The filter element 400 is arranged at the connection between the base 160 and the cover 150, and the filter element 400 divides the filter cavity into a first cavity 130 and a second cavity 140.

[0043] This split design makes it more convenient to install the filter element 400 and subsequently maintain the air filter. When the filter element 400 needs to be replaced or the interior needs to be cleaned, the cover 150 and the base 160 only need to be separated to easily access the filter element 400 and the interior of the filter cavity, without the need for complex disassembly tools and operation procedures, greatly saving maintenance time and cost.

[0044] Referring to Figure 4 , Figure 5 , Figure 6 and Figure 7In one embodiment, the power assembly 320 comprises a first driving structure 321 and a second driving structure 322. The first driving structure 321 is mounted to the shell 100, the second driving structure 322 is mounted to the first driving structure 321, and the nozzle 330 is mounted to the second driving structure 322. The first driving structure 321 is configured to drive the second driving structure 322 to move in a first direction, and the second driving structure 322 is configured to drive the nozzle 330 to move in a second direction perpendicular to the first direction.

[0045] This design enables the nozzle 330 to move in a two-dimensional plane, greatly expanding the range of activities of the nozzle 330. In the second cavity 140 of the air filter, the nozzle 330 can cover various regions of the filter element 400, effectively cleaning different positions in both horizontal and vertical directions, avoiding the occurrence of cleaning dead angles, and ensuring that the filter element 400 can be uniformly cleaned as a whole.

[0046] The adjustability of the first driving structure 321 and the second driving structure 322 enables the air filter to adapt to filter elements 400 of different specifications and sizes. Whether it is a small, medium, or large filter element 400, as long as the parameters of the driving structures are adjusted, the nozzle 330 can accurately cover the entire surface of the filter element 400, achieving effective cleaning of filter elements 400 of different specifications.

[0047] Referring to Figure 7 In this embodiment, the horizontal direction in the figure is the first direction, and the vertical direction in the figure is the second direction.

[0048] In one embodiment, the first driving structure 321 comprises a motor 3211, a screw rod 3212, and a sliding frame 3213. The screw rod 3212 is rotationally connected to the shell 100 in the first direction, and the motor 3211 is drivingly connected to the screw rod 3212. The sliding frame 3213 is slidingly connected to the shell 100, and the sliding frame 3213 is threadedly engaged with the screw rod 3212.

[0049] Threaded transmission has the characteristics of self-locking and smoothness. During the process of the motor 3211 driving the screw rod 3212 to rotate and move the sliding frame 3213, the sliding frame 3213 moves at a uniform speed without sudden acceleration or deceleration, ensuring that the nozzle 330 remains stable during movement. The structure of the motor 3211, the screw rod 3212, and the sliding frame 3213 is relatively simple, with fewer components, so the probability of failure is low. Moreover, this transmission method is widely used in the industrial field and is mature in technology, with high reliability and stability.

[0050] The screw 3212 is rotationally connected with the shell 100 in the first direction, the motor 3211 drives the screw 3212, and the sliding frame 3213 is threadedly connected with the screw 3212 and slidingly connected with the shell 100. This compact structure design is reasonable in layout of various components and fully utilizes the space inside the shell 100. In the limited space of the air filter, the nozzle 330 is enabled to move in the first direction, without making the overall equipment too large in size, and is convenient to install and use.

[0051] In one embodiment, the second driving structure 322 includes a rack 3221, a control gear 3222, a lead screw 3223 and a sliding block 3224. The rack 3221 is mounted on the shell 100 in the first direction. The control gear 3222 is rotationally connected with the sliding frame 3213, and the control gear 3222 is engaged with the rack 3221. The lead screw 3223 is connected with the control gear 3222 and is arranged in the second direction. The sliding block 3224 is slidingly connected with the sliding frame 3213 in the second direction and is threadedly connected with the lead screw 3223.

[0052] When the sliding frame 3213 moves in the first direction under the action of the first driving structure 321, the control gear 3222 rolls along the rack 3221, thereby driving the lead screw 3223 connected therewith to rotate. Since the sliding block 3224 is threadedly connected with the lead screw 3223 and slidingly connected with the sliding frame 3213 in the second direction, the rotation of the lead screw 3223 enables the sliding block 3224 to move accurately in the second direction.

[0053] Through the arrangement of the control gear 3222 and the rack 3221, the transmission of the second driving structure 322 and the second driving structure 322 is linked, that is, only one motor 3211 is needed to realize the movement of the nozzle 330 in the first direction and the second direction, which is convenient to install and use in limited space.

[0054] In some embodiments, the control gear 3222 and the lead screw 3223 can be connected by a connecting rod, the connecting rod is rotationally connected with the sliding frame 3213, the control gear 3222 is rotationally connected with one end of the connecting rod, and the lead screw 3223 is fixedly and coaxially connected with the other end of the connecting rod. Of course, in some embodiments, the connecting rod can be integrally arranged with the lead screw 3223.

[0055] In one embodiment, the base 160 is further provided with a support plate 170, the support plate 170 is provided with a sliding groove, the sliding frame 3213 is inserted into the sliding groove, and the sliding frame 3213 is slidingly connected with the sliding groove in the first direction.

[0056] The support plate 170 can increase the stability of the sliding frame 3213 when moving, and can provide support force and guidance for the sliding frame 3213, so as to avoid the sliding frame 3213 from rotating with the threaded rod and tilting due to gravity.

[0057] In one embodiment, the power assembly 320 further comprises a speed increaser 323. The speed increaser 323 is installed between the control gear 3222 and the lead screw 3223, and is used to control the transmission ratio of the control gear 3222 and the lead screw 3223.

[0058] One of the main functions of the speed increaser 323 is to increase the rotation speed. By reasonably setting the transmission ratio, it can convert the low rotation speed transmitted by the control gear 3222 into the high rotation speed required by the lead screw 3223.

[0059] In one embodiment, a bidirectional thread can be provided on the lead screw 3223. Referring to the drawings, when the sliding block 3224 cooperates with the lead screw 3223, the sliding block 3224 will move upward away from the sliding frame 3213 at the beginning, and when the sliding block 3224 moves to the upper side wall of the shell 100, the sliding block 3224 changes direction and moves downward to approach the sliding frame 3213 in the second direction, so as to realize the reciprocating motion of the sliding block 3224.

[0060] By cooperating the bidirectional thread on the lead screw 3223 with the speed increaser 323, when the motor 3211 drives the threaded rod to rotate, the sliding block 3224 can drive the nozzle 330 to move in a zigzag route in the second cavity 140, so as to clean the filter element 400 more comprehensively.

[0061] In one embodiment, the speed increaser 323 comprises a plurality of transmission gears meshing with each other, one of which rotates synchronously with the control gear 3222, and the other of which is connected with the lead screw 3223. By changing the transmission ratio between the transmission gears, the rotation speed of the transmission gear connected with the lead screw 3223 can be changed, so as to control the moving speed of the nozzle 330 in the second direction.

[0062] In one embodiment, by changing the diameter of the control gear 3222, the angle of rotation of the control gear 3222 in the unit moving length of the sliding frame 3213 can also be changed, so as to change the distance of the sliding block 3224 moving in the second direction when the sliding frame 3213 moves one unit distance in the first direction.

[0063] In one embodiment, the housing 100 is provided with a mounting port communicating with the second cavity 140. The air blower assembly 310 includes an air blower 311, a hose 312 and a baffle 313. The air blower 311 is mounted at the mounting port, and the air blower 311 communicates with the spray head 330 through the hose 312. The baffle 313 is rotatably connected with the housing 100, and the baffle 313 is rotated to open or close the mounting port.

[0064] When the air blower 311 is in operation, it can generate strong air flow to introduce air from the outside or a specific air source into the second cavity 140 through the hose 312 to the spray head 330, so as to provide stable and strong air flow for the spray head 330, thereby effectively cleaning the filter element 400 in the second cavity 140 to remove dust and impurities accumulated on the surface of the filter element 400, restore the air permeability and filtering performance of the filter element 400, and ensure the air cleaner to work continuously and efficiently.

[0065] When the engine is in operation, the baffle 313 is closed to avoid unfiltered air directly entering the engine from the second cavity 140. The closing of the baffle 313 can be actively controlled or passively controlled. For example, when the baffle 313 is not actively controlled, after the engine starts to work, the gas in the second cavity 140 will be quickly sucked into the engine along the air outlet 120, at this time, the second cavity 140 will be in a negative pressure state, and the baffle 313 will be passively closed under the adsorption of the negative pressure.

[0066] In one embodiment, the air cleaner further includes a pressure regulating device 200, which communicates with the first cavity 130 and the second cavity 140. The pressure regulating device 200 is used to blow air to the air inlet 110. When the pressure in the second cavity 140 is lower than a preset value, the pressure regulating device 200 is used to supplement air to the second cavity 140.

[0067] When cleaning the filter element 400, the pressure regulating device 200 supplements air to the second cavity 140 to increase the power of the cleaning air flow. Stronger air flow can more effectively blow off the dust and impurities on the surface of the filter element 400, improve the cleaning efficiency, make the filter element 400 recover to a good filtering state more quickly, and ensure the air cleaner to always provide clean air.

[0068] During the operation of the air filter, the pressure of the second cavity 140 can change due to various factors, such as blockage of the filter element 400 causing airflow obstruction, unstable air intake, or the engine entering a low-pressure environment. When the pressure of the second cavity 140 is lower than the preset value, the pressure regulating device 200 can timely supplement air to the second cavity 140, so that the engine has sufficient air, and thus the fuel can be fully burned. At the same time, after the pressure regulating device 200 supplements air to the second cavity 140, the pressure difference between the second cavity 140 and the first cavity 130 can be balanced, avoiding excessive pressure difference between the second cavity 140 and the first cavity 130, which can cause damage to the filter screen.

[0069] Referring to FIGS. 1 and Figure 6 In one embodiment, the pressure regulating device 200 includes an air compressor 210, a blowing pipe 220, a blowing valve 230, a supplement pipe 240, and a supplement valve 250. The air compressor 210 is in communication with the first cavity 130 through the blowing pipe 220, and the blowing valve 230 is installed on the blowing pipe 220. The air compressor 210 is in communication with the second cavity 140 through the supplement pipe 240, and the supplement valve 250 is installed on the supplement pipe 240.

[0070] The air compressor 210 as the core power source is in communication with the first cavity 130 through the blowing pipe 220, and controls the airflow by means of the blowing valve 230, so as to stably blow air to the first cavity 130, and meet the basic demand of the first cavity 130 for air intake pressure and flow. At the same time, the air compressor 210 is also connected to the second cavity 140 through the supplement pipe 240, and cooperates with the supplement valve 250, so as to accurately supplement air to the second cavity 140 when the pressure of the second cavity 140 is lower than the preset value, to realize dynamic regulation of the pressure of the second cavity 140, and ensure that the pressures of the two cavities can be maintained within the appropriate range.

[0071] The blowing valve 230 and the supplement valve 250 can accurately control the on-off and flow rate of the airflow. By adjusting the opening degree of the two valves, the blowing pressure of the first cavity 130 and the air supplement amount of the second cavity 140 can be fine-tuned according to the actual demand, to realize high-precision pressure regulation, and meet the strict requirements of the air filter for pressure under different working conditions.

[0072] In one embodiment, the air filter further includes a first pressure sensor and a second pressure sensor. The first pressure sensor is used to detect the pressure of the first cavity 130, and the second pressure sensor is used to detect the pressure of the second cavity 140.

[0073] The first pressure sensor and the second pressure sensor can detect the pressure values of the first cavity 130 and the second cavity 140 in real time and accurately. Based on the data fed back by the two pressure sensors, the control system of the air filter can automatically determine whether the pressure is in the normal range. When the pressure of the first cavity 130 or the second cavity 140 deviates from the preset value, the control system can quickly instruct the pressure adjusting device 200 (such as the air compressor 210, a valve, etc.) to perform corresponding operations, such as adjusting the air blowing amount or supplementing the air amount, to realize intelligent pressure regulation and improve the automation degree and operation efficiency of the equipment.

[0074] Through the above embodiments, the air filter disclosed in the application has the following beneficial effects or advantages: the air filter disclosed in the application can clean the filter element 400 when the filter element 400 accumulates a certain amount of dust and impurities, remove the blockages on the surface of the filter element 400, and restore the filtering performance of the filter element 400, thereby greatly prolonging the service life of the filter element 400, reducing the replacement frequency, and reducing the use cost. The power assembly 320 in the cleaning device 300 enables the spray head 330 to move freely in a two-dimensional plane, can fully cover the surface of the filter element 400, and ensures that each part of the filter element 400 can be fully cleaned, thereby improving the cleaning effect. The pressure adjusting device 200 and the pressure sensor are used in cooperation, the pressure of the first cavity 130 and the second cavity 140 can be monitored in real time, and the pressure can be automatically adjusted according to the working state of the engine and the pressure. Cleaning the filter element 400 when the engine is not started avoids affecting the operation of the engine; when the engine is started, the pressure of the second cavity 140 is stabilized, clean air is provided for the engine, and the engine can normally operate in a low-pressure environment.

[0075] Based on the same inventive concept, the second aspect embodiment of the application discloses a vehicle, which comprises a vehicle body and the air filter disclosed in any one of the embodiments of the first aspect.

[0076] The vehicle disclosed in the embodiment is equipped with the air filter, so that the vehicle disclosed in the embodiment can drive for a long time in a harsh environment with a lot of dust or serious haze without frequent replacement of the air filter element 400, thereby improving the adaptability and reliability of the vehicle in a complex environment and reducing the risk of engine failure caused by blockage of the filter element 400.

[0077] Based on the same inventive concept, the third aspect embodiment of the application discloses a filter element cleaning method based on the air filter disclosed in any one of the embodiments of the first aspect, which comprises the following steps:

[0078] Obtaining the pressure data of the first cavity 130 and the second cavity 140 and obtaining the working condition of the engine;

[0079] When the engine is in the non-starting state and the pressure difference between the first cavity 130 and the second cavity 140 is greater than or equal to the first preset value, the control system controls the air supply assembly 310 to supply air to the spray head 330 and controls the pressure regulating device 200 to blow air towards the first cavity 130. Specifically, when the engine is in the non-starting state and the pressure difference between the first cavity 130 and the second cavity 140 is greater than or equal to the first preset value, the control system sends a command to open the baffle 313, start the air blower 311, supply air to the spray head 330 through the hose 312, and control the blowing valve 230 to open, so that the air compressor 210 blows air to the first cavity 130 through the blowing pipe 220. The air blown out of the spray head 330 and the air blown out of the first cavity 130 in the opposite direction together blow the dust and impurities on the filter element 400 off, thereby cleaning the filter element 400. After cleaning, the air blower 311 and the baffle 313 are closed, and the blowing of air to the first cavity 130 is stopped.

[0080] The pressure difference between the first cavity 130 and the second cavity 140 can be detected when the engine is in the starting state, or can be detected when the engine is in the non-starting state. When the detection data of one of the two conditions is greater than or equal to the first preset value, the control system detects that the engine is in the non-starting state, and then the cleaning of the filter element 400 is performed.

[0081] When the engine is in the starting state and the pressure in the second cavity 140 is less than the second preset value, the control system controls the pressure regulating device 200 to supply air to the second cavity 140. Specifically, when the engine is in the starting state, the second pressure sensor detects the pressure in the second cavity 140 in real time. When the pressure in the second cavity 140 is less than the second preset value, the control system controls the supplement valve 250 to open, so that the air compressor 210 supplies air to the second cavity 140 through the supplement pipe 240, thereby ensuring the stability of the pressure in the second cavity 140 and providing sufficient clean air for the engine. When the pressure in the second cavity 140 returns to normal, the supplement valve 250 is closed.

[0082] The filter cleaning method disclosed in the embodiment formulates differentiated cleaning strategies according to different working states (start and non-start) of the engine and the pressure difference of the cavities. When the engine is not started, the pressure difference between the first cavity 130 and the second cavity 140 is used as a judgment basis. When the pressure difference reaches a first preset value, it indicates that the filter 400 may accumulate more impurities. At this time, the air supply of the air force assembly 310 to the nozzle 330 is controlled, and the pressure regulating device 200 blows air towards the first cavity 130, which can form a powerful air flow impact, effectively remove dust and impurities on the surface of the filter 400, and realize deep cleaning. Under the engine start state, the pressure of the second cavity 140 is monitored in real time. When the pressure is less than a second preset value, it indicates that the filter 400 may be blocked or the vehicle is in a low pressure environment, which affects the air intake. At this time, the pressure regulating device 200 is controlled to send air to the second cavity 140, which can increase the air intake, relieve the blockage of the filter 400, ensure the normal air intake demand of the engine, and to a certain extent, clean the filter 400.

[0083] Through accurate condition judgment, cleaning is only performed when the filter 400 actually needs cleaning, avoiding damage to the filter 400 caused by excessive cleaning. At the same time, according to different working conditions, appropriate cleaning methods are adopted, such as strong cleaning when the engine is not started and moderate air supply to relieve blockage when the engine is started, which helps to prolong the service life of the filter 400.

[0084] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely above in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0085] Therefore, the above detailed description of the embodiments of the present application disclosed in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0086] It should be noted that: similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0087] In the description of the application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0088] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0089] In the present application, unless specifically defined and limited otherwise, the first feature above or below the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0090] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0091] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. An air filter, characterized in that, include: The outer casing is equipped with an air outlet and an air inlet; A filter element is installed inside the housing, and the filter element divides the inner cavity of the housing into a first cavity and a second cavity. The air inlet communicates with the first cavity, and the air outlet communicates with the second cavity. The cleaning device includes a wind power component, a power component, and a nozzle. The nozzle is located in a second cavity and is connected to the wind power component. The wind power component supplies air to the nozzle, and the power component drives the nozzle to move within the second cavity.

2. The air filter according to claim 1, characterized in that, The power assembly includes a first drive structure and a second drive structure. The first drive structure is mounted on the housing, the second drive structure is mounted on the first drive structure, and the nozzle is mounted on the second drive structure. The first drive structure is used to drive the second drive structure to move along a first direction, and the second drive structure is used to drive the nozzle to move along a second direction perpendicular to the first direction.

3. The air filter according to claim 2, characterized in that, The first driving structure includes a motor, a screw, and a sliding frame. The screw is rotatably connected to the housing along the first direction. The motor drives the screw. The sliding frame is slidably connected to the housing, and the sliding frame is threadedly engaged with the screw.

4. The air filter according to claim 2, characterized in that, The second drive structure includes a rack, a control gear, a lead screw, and a slider. The rack is mounted on the housing along the first direction. The control gear is rotatably connected to the first drive structure and meshes with the rack. The lead screw is connected to the control gear. The slider is slidably connected to the first drive structure along the second direction and is threadedly connected to the lead screw.

5. The air filter according to claim 4, characterized in that, The power assembly also includes a speed increaser, which is installed between the control gear and the lead screw, and is used to control the transmission ratio between the control gear and the lead screw.

6. The air filter according to claim 2, characterized in that, The outer shell is provided with an installation port that communicates with the second cavity; The wind power component includes a fan, a hose, and a baffle. The fan is installed at the mounting port and is connected to the nozzle through the hose. The baffle is rotatably connected to the housing, and rotating the baffle opens or closes the mounting port.

7. The air filter according to any one of claims 1 to 6, characterized in that, It also includes a pressure regulating device, which is connected to the first cavity, and the pressure regulating device is used to blow air into the air inlet; The pressure regulating device is connected to the second cavity. When the pressure in the second cavity is lower than a preset value, the pressure regulating device is used to replenish air to the second cavity.

8. The air filter according to claim 7, characterized in that, The pressure regulating device includes an air compressor, an air blowing pipe, an air blowing valve, a replenishment pipe, and a replenishment valve. The air compressor is connected to the first cavity through the air blowing pipe, and the air blowing valve is installed on the air blowing pipe. The air compressor is connected to the second cavity through the replenishment pipe, and the replenishment valve is installed on the replenishment pipe.

9. A vehicle, characterized in that, include: Body; The air filter as described in any one of claims 1 to 8, wherein the air filter is mounted on the vehicle body.

10. A method for cleaning the filter element of an air filter according to any one of claims 1 to 8, characterized in that, Includes the following steps: Obtain pressure data for the first and second chambers, and obtain the engine's operating status; When the engine is not started and the pressure difference between the first chamber and the second chamber is greater than or equal to a first preset value, the wind power component is controlled to supply air to the nozzle and the pressure regulating device is controlled to blow air toward the first chamber. When the engine is running and the pressure in the second chamber is less than a second preset value, the pressure regulating device is controlled to deliver air toward the second chamber.

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