Self-cleaning filtering system capable of automatically adjusting wind resistance and operation method of self-cleaning filtering system

Abstract

The invention discloses a self-cleaning filtering system capable of automatically adjusting wind resistance and an operation method thereof.The self-cleaning filtering system comprises a liquid cooling unit shell, an axial flow fan and an adjustable filtering structure, the adjustable filtering structure is installed at an air inlet of the liquid cooling unit shell, and the axial flow fan is installed at the tail end of the liquid cooling unit shell; the adjustable filtering structure comprises a plurality of louver blades, a connecting rod adjusting mechanism and a driving mechanism, the louver blades are distributed in parallel, the connecting rod adjusting mechanism is located at the top ends of the louver blades and connected with the louver blades, and the driving mechanism is located on one side of the connecting rod adjusting mechanism and connected with the connecting rod adjusting mechanism; hook grooves are formed between the dust blocking hook pieces and the louver blades. The angles of the louver blades in the adjustable filtering structure are automatically adjusted by arranging the driving mechanism and the connecting rod adjusting mechanism, so that the filtering ventilation resistance is adjusted, the filtering effect is improved, the self-cleaning function is achieved, cleaning of the adjustable filtering structure is facilitated, and the air inlet filtering device is suitable for filtering of the air inlet of the liquid cooling unit shell.

Description

Technical Field

[0001] The present invention relates to the technical field of dust prevention, and is applicable to the outer shell of a liquid-cooled unit and various devices that require a large flow of clean air. Specifically, it relates to a self-cleaning filtration system with automatic air resistance adjustment and its operation method. Background Art

[0002] In an outdoor environment, various large-capacity batteries need to dissipate heat during operation. Generally, a liquid-cooled unit shell is used to provide a refrigerant medium with a stable temperature to dissipate heat for the batteries. Inside the liquid-cooled unit shell, there are devices such as a compressor, a plate heat exchanger, and a controller. The liquid-cooled unit shell uses a high-power axial flow fan to dissipate heat from the condenser from the inside to the outside with a large air volume. During long-term operation outdoors, a large amount of air passes through the condenser, and the dust in the air condenses on the condenser, reducing the heat exchange efficiency of the condenser. At the same time, the dust-containing air flow passes through the internal devices of the liquid-cooled unit shell, forming a sediment mixture on the device surface and cable interfaces, reducing the insulation performance of the devices and being unfavorable for the long-term operation of the devices.

[0003] In order to prevent the dust in the air from condensing on the condenser, existing manufacturers will fix a filter screen at the air inlet of the liquid-cooled unit shell and use the filter screen to filter the particulate dust in the air. The existing filtration structure of the liquid-cooled machine unit has the following deficiencies during use:

[0004] 1). The filtration efficiency of the fixed filter screen is low, and it is impossible to adjust the filtration resistance according to the concentration, size, and of the particulate matter in the air flow;

[0005] 2). The existing filter screen is directly fixed at the air inlet of the liquid-cooled unit shell. To clean it, it is necessary to stop the machine and disassemble the filter screen, and the cleaning and maintenance are very troublesome, inconvenient, and affect the normal operation of the device. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide, in view of the deficiencies of the prior art, a self-cleaning filtration system that is provided with a driving mechanism and a link adjustment mechanism to automatically adjust the angle of the louver blades in the adjustable filtration structure, so as to adjust the filtration ventilation resistance, improve the filtration effect, has a self-cleaning function, is convenient for cleaning the adjustable filtration structure, and is applicable to the filtration of the air inlet of the liquid-cooled unit shell.

[0007] To solve the above technical problems, the present invention adopts the following technical solutions:

[0008] An automatic air resistance adjusting self-cleaning filtration system and its operation method. The self-cleaning filtration system includes a liquid-cooled unit housing, an axial flow fan, and an adjustable filtration structure. The adjustable filtration structure is installed at the air inlet of the liquid-cooled unit housing, and the axial flow fan is installed at the end of the liquid-cooled unit housing. The adjustable filtration structure includes a plurality of louver blades, a link adjusting mechanism, and a driving mechanism. The plurality of louver blades are arranged in parallel. The link adjusting mechanism is located at the top of the plurality of louver blades and is connected thereto. The driving mechanism is located on one side of the link adjusting mechanism and is connected thereto. A dust blocking hook is fixed on each louver blade, and a hook groove is formed between the dust blocking hook and the louver blade.

[0009] Further, an air inlet is formed at the front ends of two adjacent louver blades, and an air outlet is formed at the rear ends of two adjacent louver blades.

[0010] Further, each louver blade includes a first blade shaft, a front swing blade, a rear swing blade, and a second blade shaft. One end of the front swing blade is hinged to the first blade shaft. The second blade shaft is located between the rear end of the rear swing blade and the other end of the front swing blade. The rear swing blade is hinged to the second blade shaft. The front swing blade is connected to the rear swing blade as a whole through the second blade shaft. The dust blocking hook is fixed at the other end of the front swing blade.

[0011] Further, the link adjusting mechanism includes a first link and a second link. The first link and the second link are arranged in parallel. A first connecting shaft is fixed at the top of the front swing blade of each louver blade, and a second connecting shaft is fixed at the top of the rear swing blade of each louver blade. The first link is located at the top of the front swing blade of each louver blade and is connected to the front swing blade of each louver blade through the first connecting shaft. The second link is located at the top of the rear swing blade of each louver blade and is connected to the rear swing blade of each louver blade through the second connecting shaft.

[0012] Further, the driving mechanism includes a first driving motor, a first transmission component, a second driving motor, and a second transmission component. The output shaft of the first driving motor is connected to one end of the first transmission component. The other end of the first transmission component is connected to one end of the first link. The output shaft of the second driving motor is connected to one end of the second transmission component. The other end of the second transmission component is also connected to one end of the second link.

[0013] Further, the first transmission assembly includes a first gear transmission shaft, a first double gear, and a first rack. The first rack is fixed to one end of the first connecting rod. The output shaft of the first driving motor is connected to the first gear transmission shaft. One gear of the first double gear meshes with the first gear transmission shaft on the first driving motor, and the other gear of the first double gear meshes with the first rack on the first connecting rod. During the rotation of the first driving motor, one gear of the first double gear is driven to operate, causing the other gear of the first double gear to rotate accordingly. The second transmission assembly includes a second gear transmission shaft, a second double gear, and a second rack. The second rack is fixed to one end of the second connecting rod. The output shaft of the second driving motor is connected to the second gear transmission shaft. One gear of the second double gear meshes with the second gear transmission shaft on the second driving motor, and the other gear of the second double gear meshes with the second rack on the second connecting rod. During the rotation of the second driving motor, one gear of the second double gear is driven to operate, causing the other gear of the second double gear to rotate accordingly.

[0014] Further, an air duct is formed inside the liquid cooling unit housing. The air duct is located between the adjustable filter structure and the axial flow fan. A condenser is also installed inside the liquid cooling unit housing. The condenser is installed at the end of the air duct. The axial flow fan is installed at the condenser at the end of the air duct. The condenser is located on one side of the axial flow fan.

[0015] Further, the front swing blade is bent to form a front turning portion. The dust blocking hook is fixed at the vertex of the front turning portion of the front swing blade. The rear swing blade is bent to form a rear turning portion. The rear swing blade is bent to form a rear turning portion.

[0016] Further, the adjustable filter structure includes a profile fixing frame. A plurality of louver blades are fixedly installed inside the profile fixing frame at intervals. The plurality of louver blades are installed at the air inlet of the liquid cooling unit housing through the profile fixing frame.

[0017] On the other hand, the present invention also provides an operation method for automatically adjusting air resistance, including an operation method for automatically adjusting air resistance using a self-cleaning filter system. The operation method includes the following operation modes:

[0018] 1) Normal filtration mode: The axial flow fan rotates forward. The air flow passes through the adjustable filter structure, air duct, condenser, and axial flow fan at the air inlet of the liquid cooling unit housing and then is discharged outside the liquid cooling unit housing. The driving mechanism is used to control the movement of the connecting rod adjustment mechanism to adjust the angles of the plurality of louver blades, causing the flow channel of the adjustable filter structure to change, so as to achieve the maximum effect of filtering fine particles of the gas under the condition of the minimum resistance of the limited gas flow.

[0019] 2) Sand and wind protection mode: When the external sand and wind are too strong, the driving mechanism is used to control the movement of the connecting rod adjusting mechanism, which can control the closing of the louver blades to close the air inlet and prevent the sand and wind from damaging the equipment inside the liquid cooling unit housing;

[0020] 3) Self-cleaning mode: The driving mechanism is used to control the movement of the connecting rod adjusting mechanism to control the angle of the louver blades, so that the blades at the air inlet are close to the vertical state and the resistance is minimized when unfolded; By driving the axial flow fan to reverse, the gas passes through the axial flow fan, the condenser, the air duct, and the adjustable filter and is discharged outside the machine body. At this time, the airflow directly discharges the dust accumulated in the condenser and the air duct and the dust accumulated on the adjustable filter structure outside the liquid cooling unit housing. After reversing, the axial flow fan rotates forward, and the angle of the adjustable louver blades is adjusted to make the louver blades return to the filtering state, and the liquid cooling unit housing operates normally.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1), The self-cleaning and filtering system of the present invention includes a liquid cooling unit housing, an axial flow fan, and an adjustable filtering structure. The adjustable filtering structure is installed at the air inlet of the liquid cooling unit housing, and the axial flow fan is installed at the end of the liquid cooling unit housing. The adjustable filtering structure includes a plurality of louver blades, a connecting rod adjusting mechanism, and a driving mechanism. The plurality of louver blades are arranged in parallel. The connecting rod adjusting mechanism is located at the top of the plurality of louver blades and is connected thereto. The driving mechanism is located on one side of the connecting rod adjusting mechanism and is connected thereto. A dust blocking hook is fixed on each louver blade, and a hook groove is formed between the dust blocking hook and the louver blade. The present invention automatically adjusts the angle of the louver blades in the adjustable filtering structure by providing a driving mechanism and a connecting rod adjusting mechanism, so as to adjust the filtering ventilation resistance, improve the filtering effect, have a self-cleaning function, facilitate the cleaning of the adjustable filtering structure, and is suitable for filtering the air inlet of the liquid cooling unit housing.

[0023] 2), Each louver blade of the present invention includes a first blade shaft, a front swing blade, a rear swing blade, and a second blade shaft. One end of the front swing blade is hinged to the first blade shaft. The second blade shaft is located between the other ends of the rear swing blade and the front swing blade. The rear swing blade is hinged to the second blade shaft. The front swing blade is connected to the rear swing blade as a whole through the second blade shaft. The dust blocking hook is fixed at the other end of the front swing blade. Each louver blade realizes the angle adjustment of the front swing blade and the rear swing blade by providing a first blade shaft and a second blade shaft and cooperating with the connecting rod adjusting mechanism, so as to adjust the bending angle of the flow channel. The resistance and ventilation area of different flow channel angles are also different, which can improve the filtering ability of the internal particles of the airflow and reduce the filtering ventilation resistance. Description of the Drawings

[0024] Figure 1 It is the overall structure diagram of the self-cleaning and filtering system of the present invention;

[0025] Figure 2 The adjustable filtering structure of the present invention is installed at the air inlet of the liquid cooling unit housing;

[0026] Figure 3 It is a schematic structural diagram of the adjustable filtering structure of the present invention;

[0027] Figure 4 It is an exploded view of the adjustable filtering structure of the present invention;

[0028] Figure 5 It is a schematic diagram showing the relationship among the louver blades, the link adjustment mechanism, and the driving mechanism of the present invention;

[0029] Figure 6 It is an exploded schematic diagram of the louver blades, the link adjustment mechanism, and the driving mechanism of the present invention Figure 1 ;

[0030] Figure 7 It is a schematic diagram showing the relationship between the link adjustment mechanism and the driving mechanism of the present invention Figure 1 ;

[0031] Figure 8 It is a schematic diagram showing the relationship between the link adjustment mechanism and the driving mechanism of the present invention Figure 2 ;

[0032] Figure 9 It is a schematic structural diagram of the louver blades of the present invention;

[0033] Figure 10 It is a schematic structural diagram of the louver blades from another angle of the present invention;

[0034] Figure 11 It is a schematic diagram showing the flow channel condition after adjustment of the rear swing blades in the louver blades of the present invention;

[0035] Figure 12 It is a schematic diagram showing the flow channel condition after adjustment of the front swing blades in the louver blades of the present invention;

[0036] Figure 13 It is a schematic diagram showing the signal flow directions of the respective circuit modules in the circuit control board of the present invention.

[0037] In the figure, there are liquid cooling unit housing 1, air duct 11, condenser 12, adjustable filtering structure 2, louver blades 21, first blade shaft 211, front swing blade 212, front turning part 2121, rear swing blade 213, rear turning part 2131, second blade shaft 214, dust blocking hook piece 215, hook groove 216, first connecting shaft 217, second connecting shaft 218, link adjusting mechanism 22, first link 221, second link 222, driving mechanism 23, first transmission component 231, first gear transmission shaft 2311, first double gear 2312, first rack 2313, second transmission component 232, second gear transmission shaft 2321, second double gear 2322, second rack 2323, first driving motor 233, second driving motor 234, profile fixing frame 24, and axial flow fan 3. Detailed implementation manners

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] As Figures 1 - 6As shown in the figure, Embodiment 1 of the present invention provides a self-cleaning filtration system with automatically adjustable air resistance. The self-cleaning filtration system includes a liquid-cooled unit housing 1, an axial flow fan 3, and an adjustable filtration structure 2. The adjustable filtration structure 2 is installed at the air inlet of the liquid-cooled unit housing 1, and the axial flow fan 3 is installed at the end of the liquid-cooled unit housing 1. The adjustable filtration structure 2 includes a plurality of louver blades 21, a connecting rod adjustment mechanism 22, and a driving mechanism 23. The plurality of louver blades 21 are arranged in parallel. The connecting rod adjustment mechanism 22 is located at the top of the plurality of louver blades 21 and is connected thereto. The driving mechanism 23 is located on one side of the connecting rod adjustment mechanism 22 and is connected thereto. A dust blocking hook piece 215 is fixed on each louver blade 21, and a hook groove 216 is formed between the dust blocking hook piece 215 and the louver blade 21. Specifically, when implemented, the distance between two adjacent louver blades 21 can be 10 - 50 mm. Each louver blade 21 is in a streamlined blade shape. The louver blades 21 are made of 6063-T5 aluminum alloy profiles and are surface anodized. The dust blocking hook piece 215 is in a J shape, and the hook groove 216 formed between the dust blocking hook piece 215 and the louver blade 21 is a V-shaped groove with a depth of 0.2 - 0.5 mm. When the air flow passes through the adjustable filtration structure 2, the streamlined louver blades 21 and the dust blocking hook pieces 215 cause the air flow to make a zigzag turn, and the particles in the air flow are gathered at the hook groove 216 by inertia. The present invention blocks the particulate matter in the air flow through the dust blocking hook piece 215, so as to filter the particles in the air flow, prevent the particles in the air flow from entering the inside of the liquid-cooled unit housing 1, improve the ability of the self-cleaning filtration system to filter the air flow, greatly reduce the dust particles entering the condenser 12 of the liquid-cooled unit housing 1, improve the health and usability of the equipment, improve the refrigeration efficiency of the liquid-cooled unit housing 1, control the movement of the connecting rod adjustment mechanism 22 by the driving mechanism 23, drive the plurality of louver blades 21 to move synchronously as a whole through the movement of the connecting rod adjustment mechanism 22, thereby automatically controlling the rotation angle of the louver blades 21 to achieve the purpose of controlling the flow angle of the air flow at the air inlet. At the same time, by adjusting the angles of the plurality of louver blades 21, the plurality of louver blades 21 at the air inlet are made to be as vertical as possible and unfolded to have the minimum resistance, so as to achieve the adjustment of the filtration ventilation resistance. By reversing the axial flow fan 3, the air flow passes through the adjustable filtration structure 2, the condenser 12 inside the liquid-cooled unit housing 1, and the axial flow fan 3 and then is discharged outside the liquid-cooled unit housing 1, and the dust accumulated on the condenser 12 inside the liquid-cooled unit housing 1 and the dust accumulated on the adjustable filtration structure 2 can be directly discharged outside the body of the liquid-cooled unit housing 1. The self-cleaning filtration system designed by the present invention can adjust the filtration ventilation resistance by automatically adjusting the blade angle, improve the filtration effect, has a self-cleaning function, and is very suitable for filtering the air inlet of the liquid-cooled unit housing 1.

[0040] In other embodiments, every one hundred blades 21 can be set in a straight turning type, a combination type of a straight belt and a curve. The dust-blocking hook pieces 215 on the blades 21 can also be straight. The flow channel formed between two blades 21 can have 1 turning bend or multiple turning bends.

[0041] During specific implementation, an air duct 11 is formed between the adjustable filtering structure 2 and the axial flow fan 3 of the present invention. A condenser 12 is installed inside the liquid cooling unit housing 1, and the condenser 12 is located on one side of the axial flow fan 3.

[0042] As Figures 8 - 12 shown, in the embodiment of the present invention, an air inlet is formed at the front ends of two adjacent blades 21, and an air outlet is formed at the rear ends of two adjacent blades 21. Each blade 21 includes a first blade shaft 211, a front swing blade 212, a rear swing blade 213, and a second blade shaft 214. One end of the front swing blade 212 is hinged to the first blade shaft 211. The second blade shaft 214 is located between the rear swing blade 213 and the other end of the front swing blade 212. The rear swing blade 213 is hinged to the second blade shaft 214. The front swing blade 212 is connected to the rear swing blade 213 into a whole through the second blade shaft 214. The dust-blocking hook piece 215 is fixed at the other end of the front swing blade 212. By arranging the first blade shaft 211 and the second blade shaft 214 on each blade 21 and using the cooperation of the first blade shaft 211, the second blade shaft 214 and the link adjusting mechanism 22, the angles of the front swing blade 212 and the rear swing blade 213 are adjusted to adjust the bending angle of the flow channel. The resistance and ventilation area of different flow channel angles are also different. According to the gas flow required by the liquid cooling unit housing 1, adjusting the different angles of the blades 21 relative to the air inlet can improve the filtering ability of the internal particles of the air flow and also has low resistance.

[0043] During specific implementation, a front turning portion 2121 is formed by bending the front swing blade 212. The dust-blocking hook piece 215 is fixed at the vertex of the front turning portion 2121 of the front swing blade 212. The rear swing blade 213 is bent to form a rear turning portion 2131. By the cooperation of the front turning portion 2121 of the front swing blade and the hook groove 216, various sized particles in the air flow are gathered at the front turning portion 2121 of the front swing blade and the hook groove 216, improving the filtering effect of the self-cleaning filtering system.

[0044] The adjustable filtering structure 2 of the present invention includes a profile fixing frame 24. A plurality of blades 21 are fixed inside the profile fixing frame 24 at intervals. The plurality of blades 21 are installed at the air inlet of the liquid cooling unit housing 1 through the profile fixing frame 24.

[0045] As Figures 5 - 7As shown, when the present invention is specifically implemented, the connecting rod adjusting mechanism 22 includes a first connecting rod 221 and a second connecting rod 222. The first connecting rod 221 and the second connecting rod 222 are arranged in parallel. At the top end of the front swing blade 212 of each hundred blades 21, a first connecting shaft 217 is fixed. At the top end of the rear swing blade 213 of each hundred blades 21, a second connecting shaft 218 is fixed. The first connecting rod 221 is located at the top end of the front swing blade 212 of each hundred blades 21 and is connected to the front swing blade 212 of each hundred blades 21 through the first connecting shaft 217. The second connecting rod 222 is located at the top end of the rear swing blade 213 of each hundred blades 21 and is connected to the rear swing blade 213 of each hundred blades 21 through the second connecting shaft 218. A plurality of hundred blades 21 are fixedly connected to the first connecting rod 221 and the second connecting rod 222 respectively through the first connecting shaft 217 and the second connecting shaft 218 at the top end. The first connecting rod 221 and the second connecting rod 222 extend horizontally along the arrangement direction of the plurality of hundred blades 21.

[0046] In an embodiment of the present invention, the driving mechanism includes a first driving motor 233, a first transmission assembly 231, a second driving motor 234, and a second transmission assembly 232. The output shaft of the first driving motor 233 is connected to one end of the first transmission assembly 231, and the other end of the first transmission assembly 231 is connected to one end of the first connecting rod. The output shaft of the second driving motor 234 is connected to one end of the second transmission assembly 232, and the other end of the second transmission assembly 232 is also connected to one end of the second connecting rod. Among them, the first transmission assembly 231 includes a first gear transmission shaft 2311, a first double gear 2312, and a first rack 2313. The first rack 2313 is fixed to one end of the first connecting rod. The output shaft of the first driving motor 233 is connected to the first gear transmission shaft 2311. One gear of the first double gear 2312 meshes with the first gear transmission shaft 2311 on the first driving motor 233, and the other gear of the first double gear 2312 meshes with the first rack 2313 on the first connecting rod. During the rotation of the first driving motor 233, it drives one gear of the first double gear 2312 to rotate, causing the other gear of the first double gear 2312 to also rotate, thereby driving the first rack 2313 and the first connecting rod on the first rack 2313 to move. The second transmission assembly 232 includes a second gear transmission shaft 2321, a second double gear 2322, and a second rack 2323. The second rack 2323 is fixed to one end of the second connecting rod. The output shaft of the second driving motor 234 is connected to the second gear transmission shaft 2321. One gear of the second double gear 2322 meshes with the second gear transmission shaft 2321 on the second driving motor 234, and the other gear of the second double gear 2322 meshes with the second rack 2323 on the second connecting rod. During the rotation of the second driving motor 234, it drives one gear of the second double gear 2322 to operate, causing the other gear of the second double gear 2322 to also rotate, thereby driving the second rack 2323 and the second connecting rod on the second rack 2323 to move. The first driving motor 233 drives the first transmission assembly 231 to move, thereby controlling the movement of the first connecting rod 221, and the second driving motor 234 drives the second transmission assembly 232, thereby controlling the movement of the second connecting rod 222, so as to adjust the angles of a plurality of louver blades 21. By cooperating the driving mechanism 23 and the connecting rod adjusting mechanism 22, the transmission smoothness is improved and synchronous and precise adjustment of multiple louver blades 21 can be achieved.

[0047] Such as Figure 13As shown in the figure, a 24V DC brushless motor can also be installed on the axial flow fan 3, and a flow rate sensor and a particle sensor can also be installed at the front end of the liquid cooling unit housing 1. The self-cleaning filtration system further includes a circuit control board, which includes an MCU main control chip, a flow rate sensor, a particle sensor, a fan drive circuit, a motor drive circuit, and a power management circuit. The model of the MCU main control chip is STM32F103C8T6 (with 12-bit ADC and PWM output), and the model of the air pressure sensor is MPX5010DP (differential pressure sensor). Two ADC interfaces of the MCU main control chip are electrically connected to the flow rate sensor and the particle sensor respectively, and the PWM output interfaces of the MCU main control chip are electrically connected to the fan drive circuit and the motor drive circuit respectively. The fan drive circuit uses an integrated motor driver chip of model L298N, and the motor drive circuit selects a DRV8870 motor drive chip. The gas flow rate is obtained in real time through the flow rate sensor, and the particulate matter concentration is obtained through the particle sensor. The data collected by the flow rate sensor and the particle sensor will be sent to the MCU main control chip, and a signal is sent from the MCU main control chip to the fan drive circuit, and the fan drive circuit controls the axial flow fan 3 to rotate in reverse. The axial flow fan 3 rotates to blow the dust inside the liquid cooling unit housing 1 to the outside.

[0048] On the other hand, the present invention also provides an operation method for automatically adjusting the wind resistance, including an operation method for automatically adjusting the wind resistance using the self-cleaning filtration system. This operation method includes the following operation modes:

[0049] 1) Normal filtration mode:

[0050] The axial flow fan 3 rotates forward, and the air flow passes through the adjustable filtration structure 2 at the air inlet of the liquid cooling unit housing 1, the air duct 11, the condenser 12, and the axial flow fan 3 and then is discharged outside the liquid cooling unit housing 1. The driving mechanism 23 is used to control the movement of the link adjusting mechanism 22 to adjust the angles of several hundred blades 21, so as to change the flow path of the adjustable filtration structure 2, so as to achieve the maximum effect of filtering fine particles of the gas under the condition of minimizing the resistance of the limited gas flow rate.

[0051] 2) Wind and sand protection mode: When the external wind and sand are too large, the driving mechanism 23 is used to control the movement of the link adjusting mechanism 22, and the hundred blades 21 can be controlled to close to close the air inlet to prevent the equipment inside the liquid cooling unit housing 1 from being damaged by the wind and sand.

[0052] 3) Self-cleaning mode:

[0053] When self-cleaning is required, the driving mechanism 23 is used to control the movement of the link adjusting mechanism 22, thereby controlling the angle of the hundred blades 21 to make the blades at the air inlet close to the vertical state, and the resistance is minimized when unfolded;

[0054] Drive the axial flow fan 3 to reverse. The gas passes through the axial flow fan 3, the condenser 12, the air duct 11, and the adjustable filter and is discharged outside the machine body. At this time, the air flow can directly discharge the dust accumulated in the condenser 12 and the air duct 11 and the dust accumulated on the adjustable filter structure 2 outside the liquid cooling unit housing 1. After reversing, the axial flow fan 3 rotates forward, and the angle of the adjustable louver 21 is adjusted to return the louver 21 to the filtering state, and the liquid cooling unit housing 1 operates normally.

[0055] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention, and the scope of implementation of the present invention cannot be limited. That is, all equivalent changes and modifications made according to the scope of this application should still fall within the scope covered by the present invention.

Claims

1. An automatic self-cleaning filtration system for adjusting air resistance, characterized in that: The self-cleaning filtration system includes a liquid-cooling unit housing, an axial flow fan, and an adjustable filtration structure. The adjustable filtration structure is installed at the air inlet of the liquid-cooling unit housing, and the axial flow fan is installed at the end of the liquid-cooling unit housing. The adjustable filtration structure includes a plurality of louver blades, a connecting rod adjustment mechanism, and a driving mechanism. The plurality of louver blades are arranged in parallel. The connecting rod adjustment mechanism is located at the top of the plurality of louver blades and is connected thereto. The driving mechanism is located on one side of the connecting rod adjustment mechanism and is connected thereto. A dust-blocking hook is fixed on each louver blade, and a hook groove is formed between the dust-blocking hook and the louver blade.

2. The self-cleaning filtration system with automatically adjustable air resistance according to claim 1, wherein: An air inlet is formed at the front end of two adjacent louver blades, and an air outlet is formed at the rear end of two adjacent louver blades.

3. The self-cleaning filtration system with automatically adjustable air resistance according to claim 1, characterized in that: Each louver blade includes a first blade shaft, a front swing blade, a rear swing blade, and a second blade shaft. One end of the front swing blade is hinged to the first blade shaft. The second blade shaft is located between the rear end of the rear swing blade and the other end of the front swing blade. The rear swing blade is hinged to the second blade shaft. The front swing blade and the rear swing blade are connected into one body through the second blade shaft. The dust-blocking hook is fixed at the other end of the front swing blade.

4. The self-cleaning filtration system with automatically adjustable air resistance according to claim 1, characterized in that: The connecting rod adjustment mechanism includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are arranged in parallel. A first connecting shaft is fixed at the top of the front swing blade of each louver blade, and a second connecting shaft is fixed at the top of the rear swing blade of each louver blade. The first connecting rod is located at the top of the front swing blade of each louver blade and is connected to the front swing blade of each louver blade through the first connecting shaft. The second connecting rod is located at the top of the rear swing blade of each louver blade and is connected to the rear swing blade of each louver blade through the second connecting shaft.

5. The self-cleaning filtration system for automatically adjusting air resistance according to claim 1, wherein: The driving mechanism includes a first driving motor, a first transmission component, a second driving motor, and a second transmission component. The output shaft of the first driving motor is connected to one end of the first transmission component. The other end of the first transmission component is connected to one end of the first connecting rod. The output shaft of the second driving motor is connected to one end of the second transmission component. The other end of the second transmission component is also connected to one end of the second connecting rod.

6. The self-cleaning filtration system with automatically adjustable air resistance according to claim 5, characterized in that: The first transmission component includes a first gear transmission shaft, a first double gear, and a first rack. The first rack is fixed to one end of the first connecting rod. The output shaft of the first driving motor is connected to the first gear transmission shaft. One gear of the first double gear meshes with the first gear transmission shaft on the first driving motor, and the other gear of the first double gear meshes with the first rack on the first connecting rod. During the rotation of the first driving motor, it drives one gear of the first double gear to operate, causing the other gear of the first double gear to rotate accordingly; the second transmission component includes a second gear transmission shaft, a second double gear, and a second rack. The second rack is fixed to one end of the second connecting rod. The output shaft of the second driving motor is connected to the second gear transmission shaft. One gear of the second double gear meshes with the second gear transmission shaft on the second driving motor, and the other gear of the second double gear meshes with the second rack on the second connecting rod. During the rotation of the second driving motor, it drives one gear of the second double gear to operate, causing the other gear of the second double gear to rotate accordingly.

7. The self-cleaning filtration system with automatically adjustable wind resistance according to claim 1, characterized in that: An air duct is formed inside the liquid cooling unit housing. The air duct is located between the adjustable filtering structure and the axial flow fan. A condenser is also installed inside the liquid cooling unit housing. The condenser is installed at the end of the air duct. The axial flow fan is installed at the condenser at the end of the air duct. The condenser is located on one side of the axial flow fan.

8. The self-cleaning filtration system with automatically adjustable air resistance according to claim 3, characterized in that: The front swing blade is bent to form a front turning portion. The dust blocking hook piece is fixed at the vertex of the front turning portion of the front swing blade. The rear swing blade is bent to form a rear turning portion. The rear swing blade is bent to form a rear turning portion.

9. The self-cleaning filtration system with automatically adjustable air resistance according to claim 1, characterized in that: The adjustable filtering structure includes a profile fixing frame. A plurality of louver blades are fixed inside the profile fixing frame at intervals. The plurality of louver blades are installed at the air inlet of the liquid cooling unit housing through the profile fixing frame.

10. An operating method for automatically adjusting air resistance, characterized in that: It includes an operation method for automatically adjusting the air resistance using the self-cleaning filtering system as described in Claim 1. The operation method includes the following operation modes: 1) Normal filtering mode: The axial flow fan rotates forward. The air flow passes through the adjustable filtering structure, air duct, condenser, and axial flow fan at the air inlet of the liquid cooling unit housing and then is discharged outside the liquid cooling unit housing. The driving mechanism is used to control the movement of the connecting rod adjustment mechanism to adjust the angles of the plurality of louver blades, causing the flow channel of the adjustable filtering structure to change, so as to achieve the maximum effect of filtering fine particles of the gas under the condition of the minimum resistance of the limited gas flow. 2) Wind and sand protection mode: When the external wind and sand are too large, the driving mechanism is used to control the movement of the connecting rod adjustment mechanism, and the louver blades can be controlled to close to close the air inlet, preventing the wind and sand from damaging the equipment inside the liquid cooling unit housing. 3) Self-cleaning mode: The movement of the link adjustment mechanism is controlled by the drive mechanism to control the angle of the louver blades, making the blades at the air inlet close to the vertical state, which is the state with the least resistance when unfolded; by reversing the drive of the axial flow fan, the gas passes through the axial flow fan, the condenser, the air duct, and the adjustable filter and is discharged outside the machine body. At this time, the airflow directly discharges the dust accumulated in the condenser and the air duct and the dust accumulated on the adjustable filter structure outside the liquid cooling unit housing. After reversing, the axial flow fan rotates forward, and the angle of the adjustable louver blades is adjusted to make the louver blades return to the filtering state, and the liquid cooling unit housing operates normally.

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