Automatic cleaning device for a heat sink

Abstract

The application relates to an automatic radiator cleaning device, which comprises multiple vertical columns, which are vertically arranged at four corners of a radiator respectively, the height of the columns is greater than that of the radiator, a ring-shaped net is arranged outside a tetrahedron formed by the multiple columns, the ring-shaped net is annular and connected end to end, the area of the ring-shaped net is greater than the area of the four sides of the radiator, a rotating structure is installed at the top of the column and fixedly connected with the ring-shaped net, and is used for driving the ring-shaped net to rotate around the tetrahedron formed by the multiple columns; a brush is installed on any column, the brush is in contact with the ring-shaped net, and the brush is used for brushing off dirt on the ring-shaped net during rotation. The four-side ring-shaped net effectively blocks dust on multiple sides of the radiator, and the rotating ring-shaped net and the fixed brush can effectively clean the multiple-side ring-shaped net.

Description

Technical Field

[0001] This invention relates to the field of radiator technology, and more particularly to an automatic radiator cleaning device. Background Technology

[0002] Fresh air heat exchange systems are quite common in daily life. These systems are typically connected to a radiator to expel hot air from the room to the outside. To make heat dissipation more efficient and convenient, most modern fresh air heat exchange systems use radiators that can dissipate heat from all four sides, meaning that air outlets are set on all four sides of the radiator to improve heat dissipation efficiency. However, in actual application environments, fresh air heat exchange systems tend to accumulate a lot of dust, resulting in a very thick layer of lint and dirt forming on the outside of the system. This leads to a decrease in the purity of the fresh air, difficulty in temperature control, and the need for regular manual cleaning. However, since radiators are usually placed high up, they are very difficult to clean.

[0003] The above problems urgently need to be addressed. Summary of the Invention

[0004] This invention discloses an automatic radiator cleaning device, which aims to solve the technical problems existing in the prior art.

[0005] The present invention adopts the following technical solution, comprising: multiple columns, each vertically installed at one of the four corners of a radiator, the height of the columns being greater than the height of the radiator; a ring-shaped mesh, surrounding the outside of a tetrahedron formed by the multiple columns, arranged in a ring shape with the ends connected, the area of ​​the ring-shaped mesh being greater than the area of ​​the radiator's perimeter; a rotating structure, installed at the top of the columns and fixedly connected to the ring-shaped mesh, used to drive the ring-shaped mesh to rotate around the tetrahedron formed by the multiple columns; and a brush, installed on any one of the columns, the brush contacting the ring-shaped mesh, the brush being used to brush away dirt from the ring-shaped mesh during rotation.

[0006] Optionally, the rotating structure includes: a chain, mounted on the top of a tetrahedron formed by multiple columns, connected end-to-end in a loop, rotating along the top cross-section of the tetrahedron formed by the multiple columns; and a driver, mounted on any one of the columns and connected to the chain, for driving the chain to rotate.

[0007] Optionally, the driver includes: a drive gear mounted on any column, the drive gear meshing with the chain; and a drive motor mounted on the same column as the drive gear, the output shaft of the drive motor being fixedly connected to the central axis of the drive gear, the drive motor being used to drive the drive gear to rotate.

[0008] Optionally, a lower support rod is installed at the bottom of a tetrahedron formed by multiple columns, with the ends connected in a wraparound manner. The ring-shaped mesh is attached to the lower support rod and cooperates with the chain to support the ring-shaped mesh.

[0009] Optionally, the diameter of the column is between 10 and 20 centimeters; there is a preset interval between the ring mesh and the radiator, and the distance of the interval is determined by the diameter of the column.

[0010] Optionally, the multiple columns include columns with brushes and columns without brushes. The columns without brushes are all provided with a rotating shaft on their outer side. The rotating shaft is connected to a bearing between the columns, and the annular mesh is attached to the rotating shaft.

[0011] Optionally, a push cylinder is provided on the column with the brush, the brush is mounted on the push cylinder, and the push cylinder is used to drive the brush to move closer to or away from the annular net.

[0012] Optionally, the brush is a soft, rubber-coated brush with an anti-aging texture, and the hardness of the brush is between 65 and 75A.

[0013] Optionally, a spray structure is provided on a column for mounting brushes, for spraying liquid onto the annular network.

[0014] Optionally, the mesh size of the ring mesh can be 0.8 to 1 mm.

[0015] The technical solution adopted in this invention can achieve at least one of the following beneficial effects: In this embodiment of the invention, multiple upright columns are vertically positioned at the four corners of the radiator, with the height of the columns exceeding the height of the radiator. A ring-shaped mesh surrounds the outer side of the tetrahedron formed by the columns, with the ring mesh's area exceeding the perimeter of the radiator. A rotating structure is mounted on the top of each column and fixedly connected to the ring mesh, driving the ring mesh to rotate around the tetrahedron formed by the columns. A brush is mounted on any one of the columns, contacting the ring mesh and used to remove dirt from the ring mesh during rotation. By setting up a four-sided ring mesh to effectively block dust from multiple sides of the radiator, and by using both rotating and fixed brushes, cleaning of the multi-sided ring mesh can be effectively achieved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below, forming part of the present invention. The illustrative embodiments of the present invention and their descriptions explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 This is an overall structural diagram of an automatic radiator cleaning device according to Embodiment 1 of the present invention; Figure 2This is a structural diagram of an automatic radiator cleaning device according to Embodiment 1 of the present invention after all the ring mesh has been removed; Figure 3 This is a structural diagram of an automatic radiator cleaning device according to Embodiment 1 of the present invention after removing part of the ring mesh.

[0017] Explanation of reference numerals in the attached figures: 1. Column; 2. Radiator; 3. Ring mesh; 4. Rotating structure; 41. Chain; 42. Drive gear; 43. Lower support rod; 5. Brush; 51. Push cylinder; 6. Spraying structure; 7. Rotating shaft. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. In the description of this invention, it should be noted that the term "or" is generally used to include the meaning of "and / or," unless otherwise expressly indicated.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a magnetic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0020] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] To address the problems existing in related technologies, this application provides an automatic radiator cleaning device.

[0022] This embodiment provides an automatic radiator cleaning device, such as... Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 This is an overall structural diagram of an automatic radiator cleaning device according to Embodiment 1 of the present invention. Figure 2This is a structural diagram of an automatic radiator cleaning device according to Embodiment 1 of the present invention after all the annular mesh has been removed. Figure 3 This is a structural diagram of an automatic radiator cleaning device according to Embodiment 1 of the present invention after removing part of the annular mesh. The cleaning device includes: Multiple columns 1 are vertically installed at the four corners of the radiator 2, and the height of the columns 1 is greater than the height of the radiator 2; a ring mesh 3 surrounds the outside of the tetrahedron formed by the multiple columns 1, forming a ring shape with the ends connected, and the area of ​​the ring mesh 3 is greater than the area of ​​the radiator 2; a rotating structure 4 is installed at the top of the columns 1 and fixedly connected to the ring mesh 3, used to drive the ring mesh 3 to rotate around the tetrahedron formed by the multiple columns 1; a brush 5 is installed on any one of the columns 1, and the brush 5 is in contact with the ring mesh 3, used to brush away dirt on the ring mesh 3 during rotation.

[0023] Optionally, four vertical columns 1 are erected at the four corners of the radiator 2, with the overall height of the columns 1 exceeding the height of the radiator 2 itself. The four columns 1 together form a square tetrahedral enclosure frame, completely enclosing the radiator 2 within the frame, providing an installation reference, hanging support points, and rotation track boundary for the subsequent dustproof ring net 3. The columns 1, being higher than the radiator 2, ensure that the dustproof net completely covers the entire upper and lower surfaces of the radiator 2, preventing any gaps in the top where dust may leak out. The four columns 1 restrict the ring net 3 to rotating only around the outer edge of the columns 1, preventing the net from shifting and avoiding the heat dissipation channels from being squeezed and blocked by the netting of the ring net 3.

[0024] Optionally, the ring mesh 3 is spliced ​​end to end to form a closed loop, which is fitted onto the outside of the tetrahedron composed of four columns 1; the total unfolded area of ​​the ring mesh 3 is larger than the total area of ​​the four side surfaces of the radiator 2. Using a full-circumferential ring wrapping, all four heat dissipation surfaces of the radiator 2 are completely covered by the mesh, preventing airborne lint, dust, and hair from directly adhering to the gaps in the radiator 2 fins, significantly reducing dust accumulation inside the radiator 2 from the source. The redundant mesh area, larger than the area around the radiator 2, serves two purposes: firstly, it allows for rotational slack, preventing the mesh from being pulled and torn by the columns 1 during rotation; secondly, the mesh can bulge slightly outward, maintaining ventilation gaps with the radiator 2 fins, ensuring that the mesh does not obstruct airflow due to being tightly attached to the heat dissipation surface, thus protecting the heat dissipation efficiency from the negative impact of the dustproof structure.

[0025] Optionally, the rotating component is fixed to the upper end of each column 1 and flexibly connected to the upper edge of the ring mesh 3, serving as the power input to drive the entire ring mesh 3 to rotate 360 ​​degrees around the square frame formed by the four columns 1. The rotating component is installed at the top of the column 1, away from the heat-generating area of ​​the radiator 2, to avoid high-temperature baking and aging of the motor, bearings, and transmission connecting parts, and to extend the service life of the rotating structure 4.

[0026] Optionally, the brush 5 is fixed to the side wall of a single column 1, with the bristle tips always in contact with the outer surface of the ring mesh 3, making it a fixed-point cleaning component. When the motor drives the ring mesh 3 to rotate continuously, the mesh surface covered with dust and lint passes by the position of the brush 5 at a uniform speed. The bristles directly scrape off the dirt intercepted on the mesh holes, and the dust automatically falls off to the bottom of the equipment, completing the online self-cleaning without manual disassembly.

[0027] In some preferred embodiments, the rotating structure 4 includes: a chain 41, mounted on the top of a tetrahedron formed by multiple columns 1, connected in a loop-like manner, rotating along the top cross section of the tetrahedron formed by multiple columns 1; and a driver, mounted on any one of the columns 1 and connected to the chain 41, for driving the chain 41 to rotate.

[0028] Optional, refer to Figure 2 On the top outline of the square tetrahedron formed by the four pillars 1, a closed loop chain 41 is arranged. The chain 41 is arranged around the top outline of the square and can rotate around the square trajectory. The chain 41 is fixed to the ring-shaped dustproof net below. When the chain 41 moves along the trajectory, it directly pulls the entire ring net 3 to rotate synchronously around the frame of the pillars 1, thereby realizing the overall rotation of the ring net 3.

[0029] The ring net 3 is a flexible mesh material. Pulling only one point can easily cause uneven local stress, stretching damage, deviation and wrinkling. The chain 41 is a rigid transmission component. It travels along the four sides of the square track and can evenly drive the upper edge of the net to move synchronously around the whole circle. The net is evenly stressed and will not have problems such as local stretching deformation, deviation and jamming. The transmission stability is stronger.

[0030] The trajectory constraint is reliable. The closed-loop chain 41 is limited by the tops of the four columns 1, strictly confining its operation within a square outline. It will not derail or deviate. Even if the equipment experiences slight vibration, the chain 41 transmission structure can still work stably, making it suitable for vibration environments such as industrial control, vehicle-mounted, and cabinet applications. The chain 41 and gears are standard mechanical transmission components, wear-resistant and tensile-resistant, far superior to flexible transmission structures such as ropes and elastic bands. They are not prone to breakage or aging with long-term reciprocating rotation. At the same time, guide rollers can be installed at the contact position between the chain 41 and the columns 1 to reduce frictional loss between the chain 41 and the columns 1.

[0031] Meanwhile, the driver can be equipped with a timer module and a counting module to automatically pause after each full rotation or start a self-cleaning cycle at fixed intervals; it can also be used with a radiator temperature sensor to start and stop cleaning at high frequency under high temperature and high dust conditions, and stop driving when in low load sleep mode, saving energy and reducing noise.

[0032] The ring mesh 3 and the chain 41 can be connected by buckles, cable ties, or detachable hooks to fix the upper edge of the ring mesh 3 to the outer chain plate of the chain 41 in sections. If it is necessary to disassemble, clean, or replace the filter screen in the future, the buckles can be directly released to separate the mesh body from the transmission chain 41 without disassembling the transmission mechanism, making maintenance convenient.

[0033] In some preferred embodiments, the driver includes: a drive gear 42, mounted on any one of the columns 1, the drive gear 42 being meshed with a chain 41; and a drive motor, mounted on the same column 1 as the drive gear 42, the output shaft of the drive motor being fixedly connected to the central axis of the drive gear 42, the drive motor being used to drive the drive gear 42 to rotate.

[0034] Optionally, the gear teeth are precisely meshed with the closed-loop chain 41 at the top of one of the columns 1, forming a sprocket-chain 41 meshing pair. The chain 41 is constrained by the four sides of the column 1. When the gear rotates, it relies on the teeth to mesh with the chain links of the chain 41, converting the rotational torque into the circular movement displacement of the chain 41 along the square outer ring. The transmission gap is small, the transmission ratio is stable, and there will be no slippage or loss of rotation. It can accurately control the number of rotations and start and stop of the ring net 3.

[0035] In some preferred embodiments, refer to Figure 2 The lower support rod 43 is installed at the bottom of the tetrahedron formed by multiple columns 1, and is connected in a ring-shaped manner. The ring net 3 is attached to the lower support rod 43 and works with the chain 41 to support the ring net 3.

[0036] Optionally, at the bottom of the tetrahedral frame formed by the four columns 1, a lower support rod 43 is provided, closed at both ends and arranged in a ring. This lower support rod corresponds one-to-one with the upper closed-loop chain 41, forming two sets of ring support bases, one above and one below. The upper edge of the ring net 3 is fixed to the upper chain 41, and the lower edge of the ring net 3 is attached to and supported above the lower support rod 43. The ring net 3 is pulled and driven by the upper chain 41 and limited by the lower support rod 43. The two points cooperate to tension and support the entire ring net 3.

[0037] Optionally, relying solely on the upper chain 41 to pull the lower half of the ring mesh 3 would cause the mesh's own weight and accumulated dust to cause the lower mesh surface to sag and collapse inwards, easily sticking to the radiator 2 fins and blocking the airflow, and also causing the mesh to be stretched and damaged. The lower support rod 43 supports the bottom edge of the ring mesh 3 from the bottom, limiting the radial displacement of the lower part of the mesh, ensuring that the entire ring mesh 3 always maintains a regular cylindrical outline, and maintains a fixed ventilation gap with the outer periphery of the radiator 2, ensuring that the heat dissipation airflow passes normally through the mesh surface.

[0038] Optionally, the top chain 41 limits the upper movement path of the ring net 3, and the bottom support rod 43 serves as the lower ring guide rail, constraining the lower end of the ring net 3 to slide and rotate only along the square ring track; the upper and lower dual positioning can completely prevent the ring net 3 from shifting left and right, twisting, or getting tangled in the column 1. Even if there is a slight uneven force in the chain 41 transmission, the lower end will not deviate or get stuck, greatly improving the stability of rotation.

[0039] Optionally, after the lower end is supported and fixed by the support rod, the contact distance between the ring net 3 and the fixed brush 5 remains constant. It will not be pressed tightly or detached from the brush bristles when the net surface falls, ensuring that dust can be stably removed from every part of the net surface when it passes the brush 5, and the self-cleaning effect is uniform.

[0040] In some preferred embodiments, the diameter of the column 1 is between 10 and 20 centimeters; there is a preset interval between the ring mesh 3 and the radiator 2, and the distance of the interval is determined by the diameter of the column 1.

[0041] Optionally, four columns 1 are used to build the tetrahedral enclosure frame. The outer diameter of each column is set to 10-20 cm, which can effectively ensure the structural rigidity requirements. The column 1 is not only a simple support, but also carries the chain 41 transmission mechanism at the upper end and fixes the lower support rod 43 at the lower end. It also constrains the rotation trajectory of the ring net 3 throughout the process. The diameter starts from 10 cm to ensure the bending and torsional strength of the column 1. It is not easy to bend and deform under equipment vibration and net tensile load, and avoids the frame tilting, which may cause the net to get stuck or the transmission to get stuck.

[0042] The large-diameter column 1 can reserve space for internal wiring. The motor power supply line and temperature control sensing line can be laid out inside the hollow cavity of the column 1, which greatly reduces the risk of external wiring entanglement, scratches and damage. At the same time, the side wall of the column 1 has sufficient mounting surface, which makes it easy to directly fix the brush 5 base, drive motor and gear assembly without the need for additional adapter brackets, making the assembly simpler.

[0043] The support column 1 is vertically arranged on the outer sides of the four corners of the radiator 2. The outer diameter of the support column 1 itself forms the minimum radial spacing reference between the outer wall of the radiator 2 and the outer ring mesh 3 of the support column 1. The four corners of the radiator 2 abut against the inner side of the support column 1. The support column 1 extends outward from the four corners of the radiator 2 by a certain distance. The ring mesh 3 surrounds the outer contour of the support column 1. Therefore, the gap distance between the outer surface of the radiator 2 and the inner side of the ring mesh 3 is essentially formed by the diameter of the support column 1. The smaller the diameter of the support column 1, the smaller the outward extension space, the closer the mesh is to the radiator 2, the narrower the ventilation gap, and the easier it is to accumulate heat and block the air duct. The larger the diameter of the support column 1, the wider the extension interval, the more space for airflow, and the dustproof mesh will not interfere with heat dissipation and air intake, but the overall footprint of the device will increase.

[0044] In some preferred embodiments, refer to Figure 2The column 1 includes a column 1 with a brush 5 and a column 1 without a brush 5. The outer side of the column 1 without a brush 5 is provided with a rotating shaft 7. The rotating shaft 7 is provided with bearings between the columns 1. The ring mesh 3 is attached to the rotating shaft 7.

[0045] Optionally, the four columns 1 that enclose a tetrahedron are divided into two types: one type is a column 1 with a brush 5: retaining the original structure, with a cleaning brush 5 installed on the outer wall of the column 1, and the end of the brush 5 continuously abutting against the ring net 3, serving as a fixed-point dust removal station for the entire device; the second type is a column 1 without a brush 5: no longer equipped with a cleaning brush 5, its main function is to guide and limit, and assist in supporting the ring net 3, simplifying the structure of the column 1 on the non-cleaning side.

[0046] A rotating shaft 7 is installed on the outer side of each brushless column 5. A bearing is assembled between the column 1 and the rotating shaft 7. The inner ring of the bearing is fixed to the outer wall of the column 1, and the outer ring of the bearing is fixed to the rotating shaft 7, allowing the rotating shaft 7 to rotate freely coaxially around the column 1. The inner side of the ring net 3 is attached to the outer circular surface of the rotating shaft 7 of the multiple brushless columns 5. When the top chain 41 pulls the ring net 3 to revolve around the center, the friction of the net body will cause the rotating shaft 7 to rotate passively in sync with the net surface.

[0047] Optionally, by setting the rotating shaft 7, sliding friction can be changed to rolling friction, reducing the drive load. The ring mesh 3 directly slides in contact with the outer wall of the column 1, resulting in high frictional resistance when the mesh is pulled forward, requiring the motor to have greater torque, and easily leading to jamming, overload, and wear and tear of the mesh. With the addition of a rotatable rotating shaft 7 supported by bearings, the movement of the ring mesh 3 drives the rotating shaft 7 to rotate, resulting in rolling friction between them. This significantly reduces transmission resistance, reduces power consumption of the drive motor, and makes its operation smoother, extending the service life of the motor and transmission chain 41. Furthermore, the ring mesh 3 is supported at multiple points along its inner circle by the rotating shaft 7, evenly distributing its own weight and accumulated dust weight across the corresponding support points of the four columns 1. This prevents excessive stress on a single point of suspension on a single chain 41, making the mesh less prone to stretching deformation and localized tearing.

[0048] In some preferred embodiments, refer to Figure 3 A push cylinder 51 is installed on the column 1 with a brush 5. The brush 5 is mounted on the push cylinder 51, which is used to move the brush 5 closer to or away from the ring net 3.

[0049] A push cylinder 51 is added to the column 1 of the brush 5. The brush 5 is no longer directly and rigidly locked to the surface of the column 1. Instead, the entire brush 5 is mounted on the extension and retraction end of the cylinder. The cylinder body is fixed to the side wall of the column 1, thus forming a cleaning component that can move forward and backward actively.

[0050] The cylinder has two basic positions: extension and retraction. In the extension position, the cylinder piston rod pushes outward, causing the brush 5 to press firmly against the outer surface of the annular mesh 3, with the bristles having a preset pre-tightening pressure. At this time, the annular mesh 3 rotates with the chain 41, and the brush 5 stably scrapes away dust and lint adhering to the mesh openings, performing a dust removal operation. In the retraction position, the cylinder causes the brush 5 to move backward, completely disengaging the bristles from the annular mesh 3, and the cleaning action stops.

[0051] By incorporating a cylinder, cleaning can be started and stopped on demand, reducing unnecessary wear. The brush 5 continuously presses against the mesh, and the rotating annular mesh 3 constantly rubs against the filter and brush bristles. When the equipment is under low load and the ambient dust is low, there is no dust accumulation. Continuous friction would unnecessarily wear down the fabric of the annular mesh 3, wear down the brush bristles, and increase the motor drive resistance and operating noise. The cylinder can be set to intermittently engage in cleaning, extending and cleaning for a few rotations at regular intervals before retracting and disengaging, significantly reducing consumable wear and overall machine noise.

[0052] The dust accumulation status of the ring mesh 3 can be determined based on the heat dissipation of the mesh surface, thereby adjusting the pressure between the brush 5 and the ring mesh 3 to adapt to different levels of dirt. The cylinder output thrust is controlled by an air source pressure regulating valve, flexibly adjusting the pressure of the brush bristles on the ring mesh 3. In cases of willow catkins or thick dust accumulation, the air pressure is increased to enhance the pressure and improve scraping and cleaning capabilities; during routine light dust control, the pressure is reduced to prevent excessive brush bristle compression that could deform the mesh surface or stretch the mesh holes. A linkage temperature control signal is set so that if the temperature of the radiator 2 exceeds a set threshold, high heat dissipation demand is detected, and the cylinder extends to clean synchronously with the brush 5. In the low-temperature standby state of the radiator 2, the cylinder retracts to cut off the branch friction resistance, maximizing ventilation. A periodic programmable mode, combined with a solenoid valve and time relay, allows the cylinder to extend and clean 3-5 times every 30 minutes before automatically retracting, enabling unattended periodic self-cleaning. Reverse auxiliary decontamination can be achieved by alternating forward and reverse rotation of the ring mesh 3, with the brush 5 maintaining pressure, providing bidirectional brushing to improve the removal of stubborn stains; after cleaning, the cylinder retracts and separates.

[0053] In addition, interference can be avoided during maintenance and screen replacement. When the ring screen 3 needs to be disassembled for overall rinsing and screen replacement, the cylinder retracts so that the brush 5 is completely removed from the rotation path of the screen body, and will not snag or scrape the edge of the screen body, making the disassembly and assembly process smoother and preventing the screen cloth from being torn during disassembly.

[0054] In some preferred embodiments, the brush 5 is a rubber anti-aging soft brush 5, and the hardness of the brush 5 is between 65 and 75A.

[0055] Optionally, the brush bristle substrate is made of modified rubber, which possesses excellent resistance to heat aging, oxidation, and dust corrosion. The area around the radiator 2 is constantly exposed to hot air circulation and high temperatures. Ordinary brush bristles are prone to hardening, brittleness, and shedding under prolonged heat; the rubber material can withstand the continuous high temperatures emitted by the radiator 2, is less prone to cracking and pulverization, and is suitable for the long-term uninterrupted operation of the equipment. At the same time, rubber is a flexible material, defined as a soft brush 5, which will not sharply scratch the surface of the annular mesh 3, avoiding damage or tearing of the filter and maximizing the protection of the structural integrity of the annular mesh 3.

[0056] Optionally, Shore A hardness is used to indicate the softness or hardness of rubber and soft rubber materials; the higher the number, the harder the material. 65A is relatively soft, with strong adhesion, and can embed itself into the mesh to hook out fine dust without compressing or pulling the ring mesh. 75A has better support, is less prone to collapsing or softening, and has sufficient scraping power, making it more effective at cleaning up willow catkins, clumps, and clumps of dust. The range of 65 to 75A represents the optimal range for a balanced softness and hardness.

[0057] In addition, the main body of the brush is 900mm long and the bristles are 200mm long.

[0058] In some preferred embodiments, refer to Figure 3 The spray structure 6 is installed on the column 1 where the brush 5 is installed, and is used to spray liquid onto the ring net 3.

[0059] Optionally, the spray assembly is fixed on the same column 1 that houses the push cylinder 51 and the rubber brush 5. As a wet dust removal unit, it first sprays and wets the surface of the annular mesh 3, then uses the brush 5 to scrape and clean the dirt, thus suppressing dust diffusion at the source. The spray direction is aimed at the upstream position of the brush 5 cleaning area on the rotation path of the annular mesh 3. Before the annular mesh 3 rotates and reaches the brush 5, clean water or neutral dust removal cleaning liquid is sprayed onto the mesh body in advance. When dust and lint are scraped off by the brush 5 in a dry state, they are easily dispersed by airflow disturbance, and some will drift back to the gaps of the radiator 2 and the inside of the equipment to form secondary dust accumulation. After the mesh surface is wetted by liquid, the dust will be adsorbed and adhered in the liquid film, no longer loose and flying. The scraped dirt will directly fall off in clumps, completely solving the dust problem.

[0060] Optionally, the basic hardware of the spray structure 6 consists of a liquid storage micro water tank, a micro booster water pump, spray pipes, and multi-hole atomizing nozzles. The liquid storage water tank can be fixed to the lower part of the column 1 to hold cleaning water or descaling cleaning agent. The micro booster water pump draws liquid from the water tank to increase water pressure and ensure spray range and atomization effect. The spray pipes and multi-hole atomizing nozzles are arranged vertically along the column 1 with multiple sets of nozzles, covering the entire vertical height of the ring net 3 to avoid local areas of the net surface not being wetted. The solenoid valve can control the opening and closing of the water circuit and can be linked with the cylinder and drive motor for sequential control.

[0061] When the self-cleaning program is started, the drive motor drives the ring mesh 3 to start rotating slowly; the solenoid valve opens, and the spray structure 6 continuously sprays water to wet the mesh surface passing through the spray nozzle area; after a delay of 2 to 5 seconds to ensure that the mesh surface is fully soaked, the cylinder 51 is pushed out, so that the 65 to 75A Shore A hardness rubber brush 5 presses the ring mesh 3; the wet and dirty mesh surface passes through the brush 5, and the clumps of dust and catkins are wetly brushed away, and the sewage and dirt fall down together; after the number of cleaning cycles reaches the set value, the spray water supply is first turned off, and the mesh surface is dried after a delay; the cylinder retracts, the brush 5 is disengaged from the mesh body, the motor stops, and the single wet cleaning process ends.

[0062] In some preferred embodiments, the mesh size of the ring mesh 3 has a gap of 0.8 to 1 mm.

[0063] Optionally, the single mesh opening (aperture) of the ring mesh 3 is limited to 0.8–1 mm. That is, the inner dimension of the hollow holes formed by the warp and weft threads of the mesh is controlled within the range of 0.8 mm to 1 mm. This can intercept willow catkins, hair, cotton fibers, mosquitoes, and debris particles larger than 1 mm, preventing them from passing through the mesh and adhering to the gaps of the radiator 2 fins. Most of the suspended dust and fine sand in the air will be intercepted on the surface of the mesh and will not directly penetrate the mesh to contaminate the core heat dissipation components, thus achieving basic dust prevention from the source. If the mesh opening is too large (>1 mm), fine dust can easily penetrate the filter, greatly weakening the dust prevention effect; if the mesh opening is too small (<0.8 mm), the mesh opening ratio is too low, the wind resistance increases sharply, which will seriously hinder the air intake and directly reduce the heat dissipation efficiency of the radiator 2.

[0064] Meanwhile, the mesh is not easily clogged by dirt. The 0.8 to 1mm pore size provides a reasonable permeability area. Even if dust accumulates on the surface, airflow can still pass through the remaining pores, preventing the mesh from becoming completely blocked in a short time and causing heat dissipation failure. This makes it more tolerant. When wet rinsing and scraping to remove blockages, the sprayed liquid can easily penetrate through the mesh, wetting the embedded dust into clumps. When used with the Shore 65~75A rubber soft brush 5 for horizontal wiping, the clumps of dust can be directly peeled off from the surface of the mesh, without getting stuck in the fine pores and difficult to clean. If the pore size is too dense, dust is easily embedded deep in the mesh, and the brush 5 is difficult to clean thoroughly. Long-term use will irreversibly clog the filter.

[0065] The woven mesh with this aperture specification has a moderate density of warp and weft threads. It will not become soft and easily stretched and deformed due to excessively sparse mesh. It is not easy to tear or bulge when it is pulled around by the chain 41 and supported by the shaft 7 under long-term stress. It will not become stiff and bend due to excessively dense weaving. When it slides and rotates with the shaft 7 of the column 1 and the lower support rod 43, the resistance will not increase abnormally, thus reducing the transmission load of the motor and chain 41.

[0066] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic radiator cleaning device, characterized in that, include: Multiple columns (1) are vertically installed at the four corners of the radiator (2), and the height of the columns (1) is greater than the height of the radiator (2). A ring mesh (3) surrounds the outside of the tetrahedron formed by the multiple columns (1), and is connected end to end in a ring shape. The area of ​​the ring mesh (3) is larger than the area around the radiator (2). A rotating structure (4) is installed at the top of the column (1) and fixedly connected to the ring net (3) to drive the ring net (3) to rotate around the tetrahedron formed by multiple columns (1); A brush (5) is installed on any one of the columns (1). The brush (5) is in contact with the ring net (3). The brush (5) is used to brush away dirt on the ring net (3) during rotation.

2. The automatic radiator cleaning device according to claim 1, characterized in that, The rotating structure (4) includes: The chain (41) is installed on the top of the tetrahedron formed by multiple columns (1), and is connected in a loop-like manner, rotating along the top cross section of the tetrahedron formed by multiple columns (1). The driver is mounted on any one of the columns (1) and connected to the chain (41) to drive the chain (41) to rotate.

3. The automatic radiator cleaning device according to claim 2, characterized in that, The driver includes: A drive gear (42) is mounted on any one of the columns (1), and the drive gear (42) is meshed with the chain (41); A drive motor is mounted on the same column (1) as the drive gear (42). The output shaft of the drive motor is fixedly connected to the central axis of the drive gear (42). The drive motor is used to drive the drive gear (42) to rotate.

4. The automatic radiator cleaning device according to claim 2, characterized in that, include: The lower support rod (43) is installed at the bottom of the tetrahedron formed by multiple columns (1) and is connected in a ring-shaped manner. The ring net (3) is attached to the lower support rod (43) and cooperates with the chain (41) to support the ring net (3).

5. The automatic radiator cleaning device according to claim 1, characterized in that, The diameter of the column (1) is between 10 and 20 centimeters; There is a preset interval between the ring mesh (3) and the radiator (2), and the distance of the interval is determined by the diameter of the column (1).

6. The automatic radiator cleaning device according to claim 1, characterized in that, The multiple columns (1) include columns (1) with brushes (5) and columns (1) without brushes (5). The columns (1) without brushes (5) are all provided with rotating shafts (7) on their outer sides. The rotating shafts (7) are provided with bearings between the columns (1). The annular mesh (3) is attached to the rotating shafts (7).

7. The automatic radiator cleaning device according to claim 1, characterized in that, A push cylinder (51) is provided on the column (1) with a brush (5). The brush (5) is mounted on the push cylinder (51), which is used to drive the brush (5) to move closer to or away from the annular net (3).

8. The automatic radiator cleaning device according to claim 1, characterized in that, The brush (5) is a rubber anti-aging soft brush (5), and the hardness of the brush (5) is between 65 and 75A.

9. The automatic radiator cleaning device according to claim 1, characterized in that, include: A spray structure (6) is installed on a column (1) on which a brush (5) is mounted, for spraying liquid onto the annular mesh (3).

10. The automatic radiator cleaning device according to claim 1, characterized in that, The mesh size of the ring mesh (3) is 0.8 to 1 mm.

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