Efficient cooling device for engine of four-wheel off-road vehicle

Abstract

The invention relates to an efficient cooling device for an engine of a four-wheel off-road vehicle. The efficient cooling device comprises a cooling pipeline assembly and a fan assembly. The cooling pipeline assembly exchanges heat with the engine, and the fan assembly dissipates heat of the cooling pipeline assembly; the fan assembly comprises a rectangular shell with a cavity; the fan and the motor are arranged on the rectangular shell; the wiping and cleaning assembly is arranged in the cavity corresponding to the lower end face of the rectangular shell; the wiping and cleaning assembly comprises a rotating arm, a cleaning mechanism arranged on the rotating arm and a driving part used for driving the rotating arm to rotate. A chute is formed in the cleaning mechanism, and the cleaning mechanism is of an elastic structure and / or a flexible structure. The fan assembly has the beneficial effects that the wiping and cleaning assembly is arranged in the fan assembly, attached wiping of attachments on the surfaces of the blades is achieved, and the heat exchange efficiency of the cooling pipeline assembly and the engine cooling effect can be improved.

Description

Technical Field

[0001] This invention relates to the field of engine technology, and more specifically to a high-efficiency cooling device for a four-wheeled off-road vehicle engine. Background Technology

[0002] An engine cooling system typically includes cooling piping components such as a radiator, coolant, and inlet / outlet water pipes; and a fan assembly for enhanced heat exchange. The fan assembly drives a fan to rotate, creating airflow that passes through or sweeps over the radiator, thereby improving the convective heat exchange efficiency between the radiator and the outside air, and ultimately cooling the engine.

[0003] For off-road vehicles or vehicles operating in dusty, muddy, or fibrous environments, the surfaces of components such as fan blades and the inner walls of the fan shroud / guide shroud are prone to accumulating dirt, slurry, fibrous material, sand, and other impurities. These deposits can lead to: a decrease in the effective ventilation area of ​​the fan and reduced airflow, thus reducing heat dissipation; uneven blade mass distribution and deteriorated dynamic balance, resulting in increased noise, vibration, or bearing load. In existing solutions, cleaning fan blades mostly relies on manual maintenance or disassembly and cleaning after shutdown, which is costly and inconvenient to perform frequently. Summary of the Invention

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a high-efficiency cooling device for a four-wheeled off-road vehicle engine, comprising: a cooling pipe assembly and a fan assembly; the cooling pipe assembly exchanges heat with the engine, and the fan assembly dissipates heat from the cooling pipe assembly; the fan assembly comprises: a rectangular housing with a cavity; a fan and a motor, disposed on the rectangular housing; and a wiping and cleaning assembly disposed within the cavity corresponding to the lower end face of the rectangular housing; wherein the wiping and cleaning assembly comprises a rotating arm, a cleaning mechanism disposed on the rotating arm, and a drive component for rotating the rotating arm; the cleaning mechanism has an inclined groove, which partially matches the position of the fan, and the cleaning mechanism is an elastic structure and / or a flexible structure.

[0006] Furthermore, it also includes: a blower cleaning assembly disposed within the cavity corresponding to the upper end face or the left or right end face of the rectangular housing.

[0007] Furthermore, the blower cleaning assembly includes at least a small pump body with its outlet facing the blade area of ​​the fan.

[0008] Furthermore, the driving component is a rotary motor, which is connected to the rotary arm to drive the rotary arm to rotate.

[0009] Furthermore, the driving component includes: an electromagnetic push rod, a corner tube, and a telescopic component; the electromagnetic push rod is disposed at one end of the corner tube; the telescopic component is disposed at the other end of the corner tube; wherein, the corner tube is filled with liquid; the rotating arm is rotatably connected to the rectangular outer shell, and an abutment plate is disposed on the rotating arm; the telescopic component contacts the abutment plate.

[0010] Furthermore, the telescopic component includes a telescopic tube or elastic membrane that docks with the corner tube port.

[0011] Furthermore, the corner tube is located at the lower left corner of the rectangular shell; the electromagnetic push rod is disposed in the cavity corresponding to the left end face of the rectangular shell; and the telescopic component is disposed in the cavity corresponding to the lower end face of the rectangular shell.

[0012] Furthermore, the lower end face of the rectangular outer shell is provided with an opening communicating with a cavity corresponding to the lower end face of the rectangular outer shell; the size of the opening is larger than the size of the rotating arm and the cleaning mechanism.

[0013] Furthermore, the cleaning mechanism includes: a rigid shell plate and a flexible or elastic block; the flexible or elastic block is disposed on the rigid shell plate; wherein, the rigid shell plate covers the bottom surface of the sponge and two sides in the axial direction of the fan; the distance between the two sides of the rigid shell is less than the width of the opening.

[0014] Furthermore, an insertion tube and an elastic bladder enclosing the insertion tube are also provided in the cavity at the lower end face of the rectangular outer shell; an injection mechanism connected to the insertion tube is also provided in the cavity, the injection mechanism injects air or liquid into the insertion tube and the elastic bladder to inflate the elastic bladder; when the cleaning mechanism is housed in the cavity at the lower end face of the rectangular outer shell, the insertion tube is located in the inclined groove.

[0015] The beneficial effects of this invention are: By incorporating a wiping and cleaning component into the fan assembly, and ensuring that the inclined groove of the cleaning mechanism partially matches the position of the fan blades, and that the cleaning mechanism is an elastic and / or flexible structure, the surface deposits on the blades can be wiped off during slow or intermittent slow fan rotation. This reduces the impact of the deposits on airflow, noise, and dynamic balance, and is beneficial for improving the heat exchange efficiency of the cooling pipe assembly and the engine cooling effect.

[0016] By arranging the wiping and cleaning components in the corresponding cavity on the lower end of the rectangular housing, and by retracting the rotating arm in the standby position and extending it in the cleaning position, interference with the air duct and occupation of the rotating area are reduced in the non-cleaning state, thereby improving the compactness of the overall layout and the safety of operation.

[0017] By setting the cleaning mechanism as a combination structure of "rigid shell plate + flexible or elastic block", and making the rigid shell plate wrap the bottom surface of the flexible or elastic block and the two sides in the axial direction of the fan, the flexible or elastic block is backed and laterally limited, so that the flexible or elastic block deforms when it is in contact with the blade, taking into account both wiping fit and structural stability, and reducing the risk of abnormal wear caused by curling, folding or excessive deformation. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0019] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0020] In the attached diagram: Figure 1 This is an overall schematic diagram based on an embodiment of this application; Figure 2 The main structures shown are those of the engine, cooling pipe assembly, and radiator; Figure 3 This mainly shows the structure of the fan assembly when the wiping component wipes the fan blades; Figure 4 The main illustration shows the structure of the rectangular shell; Figure 5 This mainly demonstrates an observation from another perspective. Figure 4 The structure; Figure 6 The main illustration shows the structure of the hollow cavity within the rectangular shell; Figure 7 The main focus is on the internal structure of the rectangular shell; Figure 8 Mainly showed Figure 7 The structure when the wiping component is housed in the cavity; Figure 9 This mainly demonstrates an observation from another perspective. Figure 8 The structure; Figure 10 The main illustration shows the structure when the elastic bladder expands to abut against the inclined groove; Figure 11The structure of the cannula is mainly shown.

[0021] The annotations in the attached figures are explained as follows: 1. Cooling piping assembly; 2. Radiator; 3. Fan assembly; 31. Rectangular housing; 311. Cavity; 312. Opening; 32. Fan; 321. Blade; 4. Wiping and cleaning assembly; 41. Rotating arm; 42. Cleaning mechanism; 421. Inclined groove; 43. Rigid shell plate; 44. Flexible or elastic block; 45. Drive component; 451. Abutment plate; 452. Torsion spring; 453. Electromagnetic push rod; 454. Piston; 455. Angle tube; 456. Telescopic component; 5. Blower cleaning component; 6. Intubation; 61. Elastic capsule; 7. Injection mechanism; 71. Electric push rod; 72. Corner shell; 8. Engine. Detailed Implementation

[0022] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0023] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0024] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0025] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0026] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Reference Figures 1-11 As shown, the present invention provides a high-efficiency cooling device for a four-wheeled off-road vehicle engine, comprising a cooling pipe assembly 1 and a fan assembly 3.

[0028] The cooling piping assembly 1 is used for heat exchange with the engine 8. For example, the cooling piping assembly 1 may include a radiator 2, inlet / outlet water pipes connected to the radiator 2, coolant, etc.; the heat generated by the engine 8 is transferred to the radiator 2 through the circulation of coolant, and the radiator 2 exchanges heat with the outside air, thereby cooling the engine 8.

[0029] The fan assembly 3 is used to dissipate heat from the cooling pipe assembly 1. The fan assembly 3 can be installed on the windward or leeward side of the radiator 2 to perform forced convection heat exchange on the radiator 2; the installation position can also be adjusted according to the overall vehicle layout space and air duct design.

[0030] In some embodiments, the fan assembly 3 includes a rectangular housing 31, a fan 32 and a motor, and a wiping and cleaning assembly 4.

[0031] The rectangular housing 31 has a cavity 311. The rectangular housing 31 can be a fan shroud or air guide shroud structure, used to define the air duct, improve the efficiency of the fan 32, and provide installation space for the cleaning components. The cavity 311 can be an accommodating space formed along the interior of the rectangular housing 31, and the cavity 311 can be divided into sections to accommodate the drive component 45 and the wiping component respectively.

[0032] The fan 32 and the motor are mounted on the rectangular housing 31. The motor drives the fan 32 to rotate, generating airflow that passes through or sweeps over the cooling pipe assembly 1, thereby improving heat dissipation. The fan 32 can be an axial fan, and the motor can be a brushless DC motor, etc.

[0033] The wiping and cleaning assembly 4 is disposed in the cavity 311 corresponding to the lower end face of the rectangular housing 31. The wiping and cleaning assembly 4 includes a rotating arm 41, a cleaning mechanism 42 disposed on the rotating arm 41, and a drive member 45 for rotating the rotating arm 41. The cleaning mechanism 42 has a slanted groove 421, which partially matches the position of the fan 32; the cleaning mechanism 42 is an elastic structure and / or a flexible structure.

[0034] With the above configuration, when it is necessary to clean the surface of the fan blades 321 of the fan 32, such as dirt, dust, and lint, the drive unit 45 drives the rotating arm 41 to rotate, causing the cleaning mechanism 42 to move to a predetermined position close to the fan 32. When the fan 32 rotates continuously at a slow speed or intermittently at a slow speed, at least a portion of the fan blades 321 enters the inclined groove 421 of the cleaning mechanism 42 and comes into contact with the inner wall of the inclined groove 421. The elastic / flexible deformation of the cleaning mechanism 42 is used to wipe the blades 321, thereby reducing the impact of the deposits on the blades 321 on airflow, noise, and balance, and improving heat dissipation.

[0035] In some embodiments, the wiping and cleaning component 4 can be implemented as follows: One end of the rotating arm 41 is rotatably connected to the rectangular housing 31 to form a rotating pair; the other end of the rotating arm 41 carries the cleaning mechanism 42. The rotating arm 41 can rotate around the position of the rotating pair so that the cleaning mechanism 42 can switch between a "standby position away from the fan 32" and a "cleaning position close to the fan 32".

[0036] The cleaning mechanism 42 is configured as an elastic and / or flexible structure. For example, it may be made of elastomer, foam, rubber, silicone or composite material with elastic recovery capability, so as to deform and provide contact pressure when in contact with the fan blade 321, thereby improving the wiping effect and reducing the impact on the blade 321.

[0037] The inclined slot 421 is partially matched with the position of the fan 32. That is, the position, inclination angle, width and depth of the opening 312 of the inclined slot 421 are adapted to the sweeping trajectory of the fan blade 321, the thickness / bending shape of the blade 321, etc., so that the blade 321 can enter the inclined slot 421 and form effective contact with the inner wall of the inclined slot 421 during rotation.

[0038] In some embodiments, the inclined groove 421 may be an approximately arc-shaped groove; the inlet of the inclined groove 421 may be provided with a fillet or chamfer to reduce the obstruction and noise when the blade 321 enters.

[0039] In some embodiments, the cleaning action may be triggered when the vehicle is at low speed, idling, stopped, or when a decrease in airflow / abnormal motor power is detected; preferably, the cleaning action is triggered when the vehicle is stopped and when a decrease in airflow / abnormal motor power is detected.

[0040] In some embodiments, the engine 8 cooling device further includes a blower cleaning assembly 5. The blower cleaning assembly 5 is disposed in the cavity 311 corresponding to the upper end face, left end face, or right end face of the rectangular housing 31.

[0041] In some embodiments, the blowing cleaning assembly 5 includes at least a small pump body with its outlet facing the blade 321 area of ​​the fan 32. The small pump body may be a miniature blower or an air pump structure. By blowing in a directional manner through the outlet, loose particles, lint, etc., can be removed before or during wiping, thereby reducing wiping resistance and minimizing secondary buildup.

[0042] In some embodiments, the drive element 45 is a rotary motor, which is connected to the rotating arm 41 to drive the rotating arm 41 to rotate. For example, the rotary motor can be fixed inside the cavity 311 of the rectangular housing 31, and the output shaft of the rotary motor is rigidly connected to the rotating arm 41 or connected via a coupling, thereby enabling the rotating arm 41 to swing at a controllable angle. To improve reliability, a limiting structure can be optionally provided to limit the maximum swing angle of the rotating arm 41 and prevent excessive squeezing or collision between the cleaning mechanism 42 and the fan 32.

[0043] In other embodiments, the driving component 45 includes an electromagnetic push rod 453, a corner tube 455, and a telescopic component 456. The electromagnetic push rod 453 is disposed at one end of the corner tube 455, and the telescopic component 456 is disposed at the other end of the corner tube 455; the corner tube 455 is filled with liquid; a rotating arm 41 is rotatably connected to a rectangular housing 31, and an abutment plate 451 is disposed on the rotating arm 41; the telescopic component 456 contacts the abutment plate 451. A piston 454 is disposed at the end of the electromagnetic push rod 453, and the piston 454 abuts against the inner wall of the corner tube 455. Its working principle is as follows: when the electromagnetic push rod 453 is activated, it applies pressure to the end of the corner tube 455, causing the liquid in the corner tube 455 to generate pressure and transmit it to the other end of the corner tube 455, driving the telescopic component 456 to extend or expand; after the telescopic component 456 contacts the abutment plate 451, it pushes the abutment plate 451, thereby driving the rotating arm 41 to rotate, so that the cleaning mechanism 42 reaches the cleaning position. When the electromagnetic push rod 453 returns, the liquid pressure decreases, the telescopic component 456 retracts, and under the action of the self-weight of the rotating arm 41, elastic rebound, or optional reset structure, the rotating arm 41 returns to the standby position.

[0044] In some embodiments, the telescopic component 456 includes a telescopic tube or an elastic membrane that engages with the port of the corner tube 455. The telescopic tube can axially elongate under liquid pressure; the elastic membrane can bulge under liquid pressure, both of which can achieve the effect of "converting liquid pressure into a thrust on the abutment plate 451". A torsion spring 452 can be provided between the rotating arm 41 and the rectangular housing 31 so that after the rotating arm 41 is pushed outward by the telescopic component 456, it returns to the cavity 311 corresponding to the lower end face of the rectangular housing 31 under the action of the torsion spring 452.

[0045] In some embodiments, the corner tube 455 is located at the lower left corner of the rectangular housing 31; the electromagnetic push rod 453 is disposed in the cavity 311 corresponding to the left end face of the rectangular housing 31; and the telescopic component 456 is disposed in the cavity 311 corresponding to the lower end face of the rectangular housing 31. This arrangement allows the electromagnetic push rod 453, with its longer stroke or larger volume, to be placed in the lateral space, while the output action on the rotating arm 41 is placed in the lower space, thereby improving space utilization.

[0046] In some embodiments, the lower end face of the rectangular housing 31 is provided with an opening 312 communicating with a cavity 311 corresponding to the lower end face; the size of the opening 312 is larger than the size of the rotating arm 41 and the cleaning mechanism 42. By providing this opening 312, the rotating arm 41 and the cleaning mechanism 42 can swing out from the lower end cavity 311 of the rectangular housing 31 to the working area under the action of the drive member 45, or smoothly return to the cavity 311 when cleaning stops, thereby reducing the risk of interference and facilitating assembly and maintenance. Optionally, the edge of the opening 312 may be provided with a flange, a guide bevel, or a wear-resistant bushing to reduce wear and scratches when the rotating arm 41 / cleaning mechanism 42 enters and exits.

[0047] The cleaning mechanism 42 includes a rigid shell plate 43 and a flexible or elastic block 44, with the flexible or elastic block 44 disposed on the rigid shell plate 43. The rigid shell plate 43 covers the bottom surface of the flexible or elastic block 44 and the two sides of the fan 32 in the axial direction. This can be understood as the rigid shell plate 43 forming a "backing" and "lateral restraint" for the flexible or elastic block 44, causing the flexible or elastic block 44 to deform when in contact with the fan 32 blades 321, thereby ensuring close wiping while avoiding excessive deformation leading to curling.

[0048] Furthermore, the distance between the two sides of the rigid housing is less than the width of the opening 312. This dimensional relationship allows the cleaning mechanism 42 to have an assembly allowance when entering and exiting the cavity 311 through the opening 312.

[0049] In some embodiments, an insertion tube 6 and an elastic bladder 61 enclosing the insertion tube 6 are further disposed in the cavity 311 at the lower end face of the rectangular housing 31; an injection mechanism 7 connected to the insertion tube 6 is also disposed in the cavity 311, the injection mechanism 7 injecting air or liquid into the insertion tube 6 and the elastic bladder 61 to inflate the elastic bladder 61; when the cleaning mechanism 42 is housed in the cavity 311 at the lower end face of the rectangular housing 31, the insertion tube 6 is located within the inclined groove 421. In some usage scenarios, each time the cleaning mechanism 42 leaves the housing, the insertion tube 6 is located within the inclined groove 421, and the elastic bladder 61 is inflated.

[0050] The injection mechanism 7 includes an electric actuator 71 and a corner shell 72, which is identical to the corner tube 455. The electric actuator 71 is identical to the electromagnetic actuator 453, with a piston 454 at its output end. The electric actuator 71 is located at one end of the corner shell 72, specifically in the cavity 311 corresponding to the right end face of the rectangular outer shell 31. The corner shell 72 is located at the lower right corner of the rectangular outer shell 31. The insertion tube 6 is connected to the corner shell 72. A hole is formed in the side wall or end of the insertion tube 6, and an elastic bladder 61 covers the hole in the insertion tube 6. This allows the electric actuator 71 to inject the medium from the corner shell 72 into the elastic bladder 61, causing the elastic bladder 61 to expand and contract. The medium in the corner shell 72 can be water, air, or other liquids. By placing an insertion tube 6 and an elastic bladder 61 enclosing the insertion tube 6 in the cavity 311 at the lower end face of the rectangular outer shell 31, and by providing an injection mechanism 7 connected to the insertion tube 6 to inject air or liquid into the insertion tube 6 and the elastic bladder 61 to inflate the elastic bladder 61, the elastic bladder 61 can form a close contact with the inner wall of the inclined groove 421 when it is in the retracted state. This achieves close-fitting cleaning or extrusion and peeling of the inner wall of the inclined groove 421, reducing the adhesion and accumulation of dust, mud and other impurities on the inner wall of the inclined groove 421. By placing the insertion tube 6 in the inclined groove 421 when the cleaning mechanism 42 is retracted into the cavity 311, and controlling the periodic expansion / contraction of the elastic bladder 61 to apply extrusion and wiping action to the inner wall of the inclined groove 421, the probability of foreign matter hardening and particle trapping in the inclined groove 421 is reduced. This reduces the risk of jamming, interference or abnormal resistance during the process of the cleaning mechanism 42 being introduced into / exited from the inclined groove 421, and improves the operational stability of the fan assembly 3.

[0051] Work process: When the engine 8 is working, it generates heat. The coolant circulates in the cooling pipe assembly 1 and carries the heat to the radiator 2. The fan assembly 3 drives the fan 32 to rotate and form airflow, which passes through or sweeps over the radiator 2, thereby improving the convective heat transfer capacity of the radiator 2 and cooling the engine 8.

[0052] During the non-cleaning phase, the drive unit 45 is in the return position, the rotating arm 41 is in the standby position, that is, the air at the lower end face of the rectangular housing 31 is housed in the cavity 311 corresponding to the lower end face of the rectangular housing 31; at this time, the cleaning mechanism 42 is away from the sweeping trajectory of the fan blades 321 to avoid interfering with the normal operation of the fan 32.

[0053] When preset triggering conditions are met, such as when the vehicle stops / idles / goes at low speed, and a decrease in airflow, abnormal power, or the cleaning cycle is reached, or when the driver starts the operation, the drive unit 45 drives the rotating arm 41 to rotate around the rotating pair with the rectangular housing 31, so that the cleaning mechanism 42 swings out from the cavity 311 through the opening 312 and reaches the cleaning position close to the fan 32.

[0054] If the drive component 45 is a rotary motor, the output shaft of the rotary motor drives the rotary arm 41 to swing to the target angle; optionally, the limiting structure limits the maximum swing angle.

[0055] If the driving component 45 is an electromagnetic push rod 453 + corner tube 455 + telescopic component 456, then the electromagnetic push rod 453 pushes the piston 454 to pressurize the liquid in the corner tube 455. The liquid pressure drives the telescopic component 456 to extend / expand and push against the abutment plate 451, thereby driving the rotating arm 41 to swing to the cleaning position.

[0056] In the cleaning state, the fan 32 rotates continuously at a slow speed or intermittently at a slow speed, and at least a portion of the fan blades 321 sequentially enter the inclined groove 421 of the cleaning mechanism 42. Since the inclined groove 421 matches the trajectory / thickness / shape of the blades 321, the blades 321 make contact with the inner wall of the inclined groove 421 after entering it; the elastic / flexible material of the cleaning mechanism 42 deforms and provides contact pressure, thereby wiping and peeling off the adhering substances on the surface of the blades 321.

[0057] After cleaning, the drive component 45 returns or reverses, and the rotating arm 41 rotates back to the standby position under its own weight, the reset force of the torsion spring 452, or the reset structure. The cleaning mechanism 42 returns to the cavity 311 on the lower end face of the rectangular shell 31 through the opening 312 to complete the storage.

[0058] In some embodiments, when the cleaning mechanism 42 is retracted into the cavity 311, the insertion tube 6 is located within the inclined groove 421. The injection mechanism 7 injects air or liquid into the insertion tube 6 and the elastic bladder 61, causing the elastic bladder 61 to expand and adhere to the inner wall of the inclined groove 421. By performing the aforementioned expansion / retraction process before each cleaning mechanism 42 leaves the retraction chamber, the inner wall of the inclined groove 421 can be cleaned or peeled off in a conforming manner, reducing the risk of obstruction and jamming caused by the accumulation of impurities within the inclined groove 421, thereby improving the stability of subsequent wiping actions.

[0059] In some embodiments, the blowing cleaning component 5 blows the area of ​​the blade 321 in a directional manner before or during wiping to prioritize the removal of loose particles, lint, etc., and then the wiping action removes the more adhesive dirt to improve the overall cleaning efficiency.

[0060] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A high-efficiency cooling device for a four-wheeled off-road vehicle engine, comprising: Cooling piping assembly and fan assembly; the cooling piping assembly exchanges heat with the engine, and the fan assembly dissipates heat from the cooling piping assembly; Its features are: The wind turbine assembly includes: A rectangular shell with a cavity; The fan and motor are mounted on the rectangular housing; A wiping and cleaning component is disposed in the cavity corresponding to the lower end face of the rectangular housing; The wiping and cleaning assembly includes a rotating arm, a cleaning mechanism disposed on the rotating arm, and a drive component for rotating the rotating arm. The cleaning mechanism has an inclined groove that partially matches the position of the fan. The cleaning mechanism is an elastic and / or flexible structure.

2. The high-efficiency cooling device for a four-wheeled off-road vehicle engine according to claim 1, characterized in that: Also includes: The air-blowing cleaning component is disposed in the cavity corresponding to the upper end face, left end face, or right end face of the rectangular housing.

3. The high-efficiency cooling device for a four-wheeled off-road vehicle engine according to claim 1, characterized in that: The blower cleaning assembly includes at least a small pump body with its outlet facing the blade area of ​​the fan.

4. The high-efficiency cooling device for a four-wheeled off-road vehicle engine according to claim 1, characterized in that: The driving component is a rotary motor, which is connected to the rotating arm to drive the rotating arm to rotate.

5. The high-efficiency cooling device for a four-wheeled off-road vehicle engine according to claim 1, characterized in that: The driving component includes: an electromagnetic push rod, a corner tube, and a telescopic component; The electromagnetic push rod is located at one end of the corner tube; the telescopic component is located at the other end of the corner tube. The corner tube is filled with liquid; the rotating arm is rotatably connected to the rectangular outer shell, and an abutment plate is provided on the rotating arm; the telescopic component contacts the abutment plate.

6. The high-efficiency cooling device for a four-wheeled off-road vehicle engine according to claim 1, characterized in that: The telescopic component includes a telescopic tube or elastic membrane that docks with the port of the corner tube.

7. The high-efficiency cooling device for a four-wheeled off-road vehicle engine according to claim 1, characterized in that: The corner tube is located at the lower left corner of the rectangular shell; the electromagnetic push rod is disposed in the cavity corresponding to the left end face of the rectangular shell; The telescopic component is disposed within the cavity corresponding to the lower end face of the rectangular outer shell.

8. The high-efficiency cooling device for a four-wheeled off-road vehicle engine according to claim 1, characterized in that: The lower end face of the rectangular shell is provided with an opening that communicates with a cavity corresponding to the lower end face of the rectangular shell; the size of the opening is larger than the size of the rotating arm and the cleaning mechanism.

9. The high-efficiency cooling device for a four-wheeled off-road vehicle engine according to claim 8, characterized in that: The cleaning mechanism includes: a rigid shell plate and a flexible or elastic block; the flexible or elastic block is disposed on the rigid shell plate; The rigid shell covers the bottom surface of the sponge and the two sides in the axial direction of the fan; the distance between the two sides of the rigid shell is less than the width of the opening.

10. The high-efficiency cooling device for a four-wheeled off-road vehicle engine according to claim 9, characterized in that: An insertion tube and an elastic bladder enclosing the insertion tube are also disposed in the cavity at the lower end face of the rectangular outer shell; an injection mechanism connected to the insertion tube is also disposed in the cavity, and the injection mechanism injects air or liquid into the insertion tube and the elastic bladder to inflate the elastic bladder. When the cleaning mechanism is housed in the cavity at the lower end face of the rectangular housing, the insertion tube is located within the inclined groove.

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