A dynamic airflow adaptive heat dissipation device for interference suppressor components

Abstract

This invention relates to the field of heat dissipation technology for electronic devices, specifically disclosing a dynamic airflow adaptive heat dissipation device for an anti-interference device assembly. The device includes a fixed base, an anti-interference device assembly, and a fixing slot on the fixed base. The anti-interference device assembly is fixedly connected to the fixing slot. It also includes a wind-cooling mechanism. The wind-cooling mechanism includes a blower, a duct, a dustproof plate, a chamber within the fixed base, a top hole in the chamber, a guide hole in the chamber, an exhaust hole in the duct, several heat dissipation holes in the chamber, and several guide components equidistantly arranged along the width of the chamber. The blower is fixedly connected to the outer wall of the fixed base; the duct is fixedly connected to the chamber; the two sides of the guide hole communicate with the blower and the duct respectively; the top hole communicates with the fixing slot, and the dustproof plate is fixedly connected to the top hole. This addresses the problem of uneven heat dissipation on the fins in existing anti-interference devices when cooling the fins.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation technology for electronic devices, and more specifically to a dynamic airflow adaptive heat dissipation device for an anti-interference device assembly. Background Technology

[0002] With societal development, electronic products have entered every household, facilitating residents' lives. However, the increasing number of electronic devices and signals leads to mutual interference, causing problems. Therefore, an easy-to-install electronic information technology interference suppressor is needed to stabilize signals and combat interference. While existing electronic information technology interference suppressors can suppress interference, their installation relies on bolts, requiring tools for disassembly and installation, which is quite inconvenient.

[0003] To address the aforementioned issues, Chinese Patent Publication No. CN213089271U discloses an easy-to-install electronic information technology anti-interference device. The device includes an anti-interference body with a mounting mechanism fixed to its top. This mounting mechanism comprises a copper plate, a connecting post, a fixing plate, a plug rod, a first fixing block, a first spring, a second fixing block, a third fixing block, a telescopic rod, a second spring, and a connecting block. The bottom end of the copper plate is fixed to the connecting post, and the bottom end of the connecting post is fitted with the fixing plate. A plug rod is inserted into the interior of the connecting post. This device inserts the connecting post into the interior of the fixing plate, and under the pressure of the connecting post, the plug rod retracts and is then inserted back into the connecting post for fixation, thus completing the installation and improving the device's working efficiency.

[0004] The above-mentioned device has the following problems in actual use: The fan of the device is fixed on the heat dissipation fins, which means that the airflow generated by the fan can only blow on the heat dissipation fins in a specific direction. If the airflow direction is fixed and the range is limited, some fin areas may not be effectively covered, resulting in the heat in these areas not being carried away in time, forming "heat dissipation dead zones", that is, causing uneven heat dissipation in some areas of the heat dissipation fins, thereby affecting the overall heat dissipation efficiency. Summary of the Invention

[0005] This invention provides a dynamic airflow adaptive heat dissipation device for anti-interference device components to solve the problem of uneven heat dissipation in localized areas of the fins when cooling the fins in existing anti-interference devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dynamic airflow adaptive heat dissipation device for an anti-interference device assembly, comprising a fixed base, an anti-interference device assembly, a fixing slot on the fixed base, the anti-interference device assembly being fixedly connected to the fixing slot, and a wind-cooling mechanism; the wind-cooling mechanism includes a blower, a duct, a dustproof plate, a chamber within the fixed base, a top hole in the chamber, a duct in the chamber, an exhaust hole in the duct, a plurality of heat dissipation holes in the chamber, and equidistant holes along the width direction of the chamber. The system includes several air guiding components; the blower is fixedly connected to the outer wall of the fixed base; the air guide pipe is fixedly connected to the chamber; the two sides of the air guide hole are respectively connected to the blower and the air guide pipe; the top hole is connected to the fixed groove, and the dustproof plate is fixedly connected to the top hole; the air guiding component includes a thin pipe, a thick pipe, an air pipe, several air holes equidistantly opened on the air pipe along the length direction of the air pipe, and a drive unit for driving the thick pipe to reciprocate along the length direction of the air guide pipe; the thin pipe is slidably connected to the exhaust hole, and the two ends of the thin pipe are respectively connected to the two ends of the thick pipe and the air pipe; the air hole group faces the dustproof plate.

[0007] The principles and advantages of this scheme are: The blower provides airflow, which is then directed through the air guide holes to the heat dissipation hole area, thus directly acting on the vicinity of the heat source and accelerating the heat dissipation from the heat dissipation hole.

[0008] The design of the air duct and exhaust vent guides the airflow along a predetermined path (left to right), preventing turbulence or eddies from causing heat accumulation, achieving a highly efficient "forward and backward" airflow layout, and improving cooling uniformity.

[0009] A dustproof plate is installed on the top hole to prevent external dust from entering the fixing groove, thereby protecting the anti-interference device components and the internal air guide structure; the positive pressure air supply of the blower can also inhibit the backflow of external pollutants from the heat dissipation holes to a certain extent, further improving the system reliability.

[0010] The reciprocating air duct drives the air hole group to dynamically spray airflow along the length of the air duct, causing the airflow to penetrate the dustproof plate from bottom to top and directly impact the bottom surface of the anti-interference device component, forming an impact cooling effect. This makes the airflow at the bottom of the entire anti-interference device component more uniform and avoids the accumulation of local hot spots. In addition, the movement of the air duct continuously refreshes the airflow contact surface and prevents heat exchange attenuation caused by the thickening of the boundary layer.

[0011] Therefore, by providing vertically upward auxiliary cooling through the air vent array, and then pushing the airflow from left to right through the air guide holes to form a three-dimensional multi-directional heat dissipation network, the overall heat dissipation capacity can be further improved under the synergistic effect of the main and auxiliary airflows.

[0012] The airflow first enters the larger pipe. Due to the increased cross-sectional area, the airflow velocity decreases, and the turbulence intensity weakens, acting as a buffer and stabilizing agent. This helps eliminate any upstream pulsations or eddies, providing a stable air source for subsequent fine-tuning. After entering the smaller pipe from the larger one, the airflow velocity increases significantly due to the abrupt decrease in cross-sectional area, forming a high-speed jet. In other words, the transition from the larger to the smaller pipe creates a clear pressure gradient, driving the airflow forward continuously and preventing backflow or stagnation.

[0013] Furthermore, the narrow channel of the thin tube has a certain filtering effect on dust particles; and the shearing force generated when the high-speed airflow passes through can reduce particle adhesion. Combined with positive pressure air intake, it has a certain anti-clogging and self-cleaning ability.

[0014] Furthermore, it also includes several auxiliary components equidistantly arranged along the length of the chamber; the auxiliary components include an auxiliary block, an auxiliary hole opened on the auxiliary block, and auxiliary parts symmetrically arranged on both sides of the auxiliary hole; the auxiliary block is fixedly connected to the chamber; the auxiliary parts include an auxiliary shaft, an auxiliary plate, and a motion unit for driving the auxiliary plate to swing intermittently; the auxiliary shaft is rotatably connected to the auxiliary hole; the auxiliary plate is fixedly connected to the auxiliary shaft; the air guide assembly also includes several air inlet holes equidistantly opened on the air pipe along the length of the air pipe; the air inlet holes communicate with the auxiliary holes; the auxiliary holes face the dustproof plate.

[0015] After the airflow is ejected from the exhaust port on the air duct, it enters the auxiliary port of the auxiliary block. After being reorganized through the channel, it is laterally dispersed and then acts on the bottom of the anti-interference device component from bottom to top. This two-stage airflow guiding mechanism of "main channel → auxiliary port" expands the originally linearly distributed airflow into a surface coverage, effectively increasing the cooling area.

[0016] By periodically changing the effective flow area and outflow direction of the auxiliary orifice during the oscillation of the auxiliary plate, the airflow is ejected in a "pulsating" or "scanning" manner, breaking the fixed path of the static outflow and allowing the cooling airflow to more evenly cover the entire bottom area of ​​the anti-interference device assembly. At the same time, the oscillation of the auxiliary plate can induce periodic changes in the airflow direction and velocity, significantly increasing airflow disturbance and vortex generation, effectively disrupting the thermal boundary layer in the wall-attached area, improving convective heat transfer efficiency, and further enhancing the cooling capacity.

[0017] Furthermore, the air guide assembly also includes several linkage parts equidistantly arranged along the length of the air duct; the linkage parts include linkage units symmetrically arranged on both sides of the air intake hole; the linkage unit includes a linkage plate, a linkage groove opened on the air intake hole, and a moving part for driving the linkage plate to reciprocate along the length of the linkage groove; the linkage plate and the linkage groove are slidably connected.

[0018] By adjusting the relative distance between two interlocking plates, the cross-sectional area of ​​the airflow through the vent can be actively controlled. When the plates are closer together, the effective flow area of ​​the vent decreases, resulting in increased airflow velocity and decreased flow rate; conversely, when they are further apart, the opposite occurs. This variable interface design allows the airflow to be ejected in a pulsed manner, creating intermittent impact cooling. Compared to continuous airflow, pulsed airflow more easily disrupts the thermal boundary layer, improving instantaneous heat transfer efficiency, and maintaining good heat dissipation performance, especially at low average wind speeds.

[0019] Furthermore, the air vent assembly includes air vents symmetrically arranged on both sides of the air intake; the linkage groove communicates with the air vents; the linkage unit also includes a linkage rod and a side plate; both ends of the linkage rod are fixedly connected to the linkage plate and the side plate respectively; the end of the side plate away from the linkage rod extends into the air intake.

[0020] When the linkage plate expands the air intake hole, the side plate simultaneously reduces the outlet area of ​​the air hole, causing the airflow to accumulate briefly in the air hole and the pressure to rise; then the side plate moves back to release the throttling, forming a high-speed pulse airflow. This "pressure accumulation-burst" mode can enhance the impact cooling effect, more effectively break the thermal boundary layer at the bottom of the anti-interference device component, and improve the instantaneous heat exchange efficiency.

[0021] The reverse change in the cross-sectional area of ​​the air intake hole and the air outlet keeps the system's air intake and exhaust flow rates in a dynamic balance, avoiding pressure oscillations or airflow backflow caused by sudden changes in the flow area, ensuring stable and orderly airflow in the chamber, and improving the overall flow reliability.

[0022] Furthermore, the linkage unit also includes a concave block, a slider, several side rods respectively arranged on both sides of the slider, and a power component for driving the slider to perform intermittent vertical reciprocating motion; the concave block is fixedly connected to the side plate; the slider is slidably connected to the concave block; the side rods are fixedly connected to the slider, and the side rods are located below the air holes.

[0023] When the side rod rises and fits into the vent, it temporarily reduces part of the vent's cross-sectional area, causing the air pressure inside the vent to rise continuously. When it moves down, it opens instantly, and the accumulated high-pressure airflow is explosively discharged, forming a high-intensity pulse jet, which more effectively destroys the thermal boundary layer at the bottom of the anti-interference device component, thereby further improving the cooling capacity.

[0024] Furthermore, the linkage unit also includes a fixed block and several fixed rods; the fixed block is fixedly connected to the chamber; the several fixed rods are all fixedly connected to the fixed block, and the fixed block is located above the air hole.

[0025] When the side rod is below the vent and not in contact with it, the equidistant fixed rods above the vent act as physical limits to the airflow about to be discharged, constraining the airflow to move vertically upwards, reducing airflow deflection caused by uneven pressure or structural disturbances within the chamber, and improving outflow consistency. When the side plate is in contact with the vent, its top and the fixed rods are spatially staggered, forming a grid-like barrier composed of the fixed rods and closed side rods (i.e., "similar to a mesh plate with several through holes"). The formation of the "mesh plate" will create multiple parallel jets when the pulsed airflow passes through the gaps in the "mesh plate," with their outflow directions becoming more consistent, reducing the divergence angle, and allowing the cooling airflow to act more concentrated on the target area at the bottom of the anti-interference device assembly, thus improving energy utilization efficiency.

[0026] Furthermore, the linkage unit also includes several cleaning components; the cleaning components are located between two adjacent fixed rods; the cleaning components include a guide block, a cleaning block, a first spring, and a guide groove opened on the guide block; the guide block is fixedly connected to the air hole; the cleaning block is slidably connected to the guide block, and the cleaning block is located on the movement trajectory of the side rod; the two ends of the first spring are respectively connected to the cleaning block and the guide groove.

[0027] During the movement of the cleaning block along the air tube, as the cleaning block makes periodic movements in the vertical direction relative to the air hole, its stroke covers the area between two adjacent fixed rods. This physically scrapes away dust, flocculent matter, and other foreign objects adhering to the rod wall or cavity surface, preventing the reduction or even blockage of the ventilation cross-section due to dust accumulation during long-term operation.

[0028] Furthermore, it also includes a drive unit; the drive unit includes a screw, a guide rod, a sliding hole opened on the air duct, and a drive component for driving the screw to rotate; the screw is rotatably connected to the chamber; the guide rod is fixedly connected to the sliding hole; the drive part is a nut seat; the nut seat is threadedly connected to the screw, the nut seat is slidably connected to the guide rod, and the nut seat is fixedly connected to the thick pipe.

[0029] During the rotation of the screw, the nut seat can drive the thick tube to reciprocate along the length of the guide rod.

[0030] Furthermore, the motion unit includes a motion block, a motion hole on the linkage plate, and a linkage component for driving the motion block to perform intermittent vertical reciprocating motion; the motion block is slidably connected to the motion hole; the auxiliary plate is located on the motion trajectory of the motion block; a torsion spring is provided on the auxiliary shaft, and the two ends of the torsion spring are respectively connected to the auxiliary shaft and the auxiliary hole.

[0031] During the intermittent vertical reciprocating motion of the moving block, the auxiliary plate can make intermittent reciprocating swings at a certain angle under the action of the moving block and the torsion spring.

[0032] Furthermore, the air guide assembly also includes several pushing units equidistantly arranged along the length of the air duct; the pushing unit includes a rotating shaft, an elliptical disk, and a rotating component for driving the rotating shaft to rotate; the rotating shaft is rotatably connected to the air duct; the elliptical disk is fixedly connected to the rotating shaft; the moving component includes a long rod, a stop block, and a second spring; the two ends of the long rod are respectively fixedly connected to the linkage plate and the stop block; the stop block abuts against the elliptical disk; the two ends of the second spring are respectively connected to the linkage plate and the linkage groove.

[0033] During the rotation of the shaft, the elliptical disk rotates synchronously. During the rotation of the elliptical disk, when the major axis end of the elliptical disk abuts against the stop block, the stop block drives the linkage plate to slide into the linkage groove through the long rod, and the second spring is compressed; when the minor axis end of the elliptical disk abuts against the stop block, the second spring drives the linkage plate to return to its original position. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of an embodiment of a dynamic airflow adaptive heat dissipation device for an anti-interference device component according to the present invention.

[0035] Figure 2 for Figure 1 A schematic diagram of the structure inside the fixed groove.

[0036] Figure 3 for Figure 2 A schematic diagram of the structure within the central cavity.

[0037] Figure 4 for Figure 3 A schematic diagram of the partial structure inside the central air duct and air pipe.

[0038] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0039] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0040] Figure 7 for Figure 4 A magnified view of point C in the middle. Detailed Implementation

[0041] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: 1. Fixed base; 2. Air duct; 3. Dustproof plate; 4. Air duct; 5. Exhaust duct; 6. Heat dissipation duct; 7. Blower; 8. Thin pipe; 9. Thick pipe; 10. Air pipe; 11. Air hole; 12. Auxiliary block; 13. Auxiliary shaft; 14. Auxiliary plate; 15. Air intake duct; 16. Linkage plate; 17. Side plate; 18. Concave block; 19. Slider; 20. Side rod; 21. Fixed block; 22. Fixed rod; 23. Screw; 24. Guide rod; 25. Nut seat; 26. Motor box; 27. Moving block; 28. Rotating shaft; 29. ​​Elliptical disk; 30. Long rod; 31. Abutment block; 32. Power shaft; 33. First gear; 34. First cam; 35. Side block; 36. First rack; 37. Second cam; 38. Base plate; 39. Auxiliary box; 40. Second rack; 41. Second gear; 42. Anti-interference device assembly; 43.

[0042] The basic implementation examples are as follows: Figure 1 , 2 As shown in points 3, 4, 5, 6, and 7: An embodiment of the present invention provides a dynamic airflow adaptive heat dissipation device for an anti-interference device assembly, including a fixed base 1, an anti-interference device assembly 43, and a fixing slot opened on the fixed base 1, wherein the anti-interference device assembly 43 is fixedly connected to the fixing slot.

[0043] The core function of an anti-jamming device is to provide systematic protection against multi-source interference commonly found in industrial, communication, and security scenarios. Existing interference can be divided into three main categories according to its source and characteristics: The first category is electromagnetic interference, including 50Hz power frequency interference, high frequency radio frequency interference, transient pulse interference, and lightning surge. This type of interference is energy conduction interference and is the core target of anti-interference protection. The second type is signal interference, including co-channel / adjacent-channel interference in wireless transmission scenarios, multipath interference formed by reflection paths, and random noise interference generated in the transmission link. This type of interference will directly degrade the signal-to-noise ratio and affect the accuracy of signal decoding and recognition. The third category is environmental interference, including humidity, salt spray, and corrosive gases under long-term operating conditions. This type of interference will gradually erode the circuit insulation, change the impedance characteristics of components, and eventually cause faults such as insulation breakdown and signal drift.

[0044] To simultaneously address the three types of interference mentioned above, the anti-interference device component 43 includes an anti-interference magnetic ring, filters (low-pass / high-pass / band-pass), surge protectors, isolators, and shielding covers, and is assembled and configured according to a layered logic of "front-end high energy discharge → conducted interference filtering → path isolation and cut-off → radiation shielding protection".

[0045] Install the surge protector at the outermost input port of the interference suppressor, ensuring the casing is properly grounded. This is used to discharge high-energy overvoltages such as those from external lightning strikes and static electricity, prioritizing the protection of downstream precision components. Depending on the output terminal type of the surge protector: for power supply interference suppressors, prioritize using a low-pass π-type filter; for signal interference suppressors, select the appropriate type (high-pass / band-pass) based on the interference frequency band. Place the interference suppressor ferrite ring directly onto the filter's input / output cables, prioritizing installation close to the port: to suppress input-side interference, place it on the input line; to suppress output-side radiation, place it on the output line. In strong interference scenarios, wrap 2-3 turns of wire for enhanced effect. Use opto-isolation / transformer isolation for signal interference suppressors and isolated DC-DC modules for power supply interference suppressors to achieve complete electrical disconnect between input and output, blocking common-mode interference from grounding loops. Finally, house all assembled circuit boards and components within a metal shielding enclosure.

[0046] It also includes an air-cooling mechanism; the air-cooling mechanism includes a blower, an air duct 2, a dustproof plate 3, a chamber inside the fixed base 1, a top hole in the chamber, an air guide hole 4 in the chamber, an exhaust hole 5 in the air duct 2, several heat dissipation holes 6 in the chamber, and several air guide components equidistantly arranged along the width of the chamber; the blower is a blower 7, which is fixedly connected to the outer wall of the fixed base 1; the air duct 2 is fixedly connected to the chamber; the two sides of the air guide hole 4 are respectively connected to the air inlet of the air duct 2 and the air outlet of the blower. The top hole is connected to the fixed groove, and the dustproof plate 3 is fixedly connected to the top hole; the air guide assembly includes a thin tube 8, a thick tube 9, an air pipe 10, a number of air holes equidistantly opened on the air pipe 10 along the length direction of the air pipe 10, and a drive part for driving the thick tube 9 to reciprocate along the length direction of the air guide 2; the thin tube 8 is slidably connected to the exhaust hole 5, and the two ends of the thin tube 8 are respectively connected to the two ends of the thick tube 9 and the air pipe 10; the air hole group is located below the dustproof plate 3 and faces the dustproof plate 3; the exhaust hole 5 faces the heat dissipation hole 6.

[0047] It also includes several auxiliary components equidistantly arranged along the length of the chamber; the auxiliary components include an auxiliary block 12, an auxiliary hole opened on the auxiliary block 12, and auxiliary parts symmetrically arranged on both sides of the auxiliary hole; the auxiliary block 12 is fixedly connected to the chamber; the auxiliary parts include an auxiliary shaft 13, an auxiliary plate 14, and a motion unit for driving the auxiliary plate 14 to swing intermittently; the auxiliary shaft 13 is rotatably connected to the auxiliary hole; the auxiliary plate 14 is fixedly connected to the auxiliary shaft 13; there is a certain distance between the two auxiliary plates 14; the air guide assembly also includes several air inlet holes 15 equidistantly opened on the air pipe 10 along the length of the air pipe 10; the air inlet holes 15 communicate with the auxiliary holes; the auxiliary holes face the dustproof plate 3.

[0048] The air guide assembly also includes several linkage parts equidistantly arranged along the length of the air duct 10; the linkage parts include linkage units symmetrically arranged on both sides of the air intake hole 15; the linkage unit includes a linkage plate 16, a linkage groove opened on the air intake hole 15, and a moving part for driving the linkage plate 16 to reciprocate along the length of the linkage groove; the linkage plate 16 is slidably connected to the linkage groove; there is a certain distance between the two linkage plates 16.

[0049] The air vent assembly includes air vents 11 symmetrically arranged on both sides of the air intake vent 15; the linkage groove communicates with the air vents 11; the linkage unit also includes a linkage rod and a side plate 17; the two ends of the linkage rod are fixedly connected to the linkage plate 16 and the side plate 17 respectively; the end of the side plate 17 away from the linkage rod extends into the air intake vent 11.

[0050] The linkage unit also includes a concave block 18, a slider 19, several side rods 20 respectively arranged on both sides of the slider 19, and a power component for driving the slider 19 to perform intermittent vertical reciprocating motion; the concave block 18 is fixedly connected to the side plate 17; the slider 19 is slidably connected to the concave block 18; the side rods 20 are fixedly connected to the slider 19, and the side rods 20 are located below the air hole 11.

[0051] The linkage unit also includes a fixed block 21 and several fixed rods 22; the fixed block 21 is fixedly connected to the chamber; the several fixed rods 22 are all fixedly connected to the fixed block 21, and the fixed block 21 is located above the air hole 11.

[0052] The linkage unit also includes several cleaning components; the cleaning components are located between two adjacent fixed rods 22; the cleaning components include a guide block, a cleaning block 23, a first spring, and a guide groove opened on the guide block; the guide block is fixedly connected to the air hole 11; the cleaning block 23 is slidably connected to the guide block, and the cleaning block 23 is located on the movement trajectory of the side rod 20; the two ends of the first spring are respectively connected to the cleaning block 23 and the guide groove.

[0053] It also includes a drive unit; the drive unit includes a screw 24, a guide rod 25, a sliding hole on the air duct 2, and a drive component for driving the screw 24 to rotate; the screw 24 is rotatably connected to the chamber; the guide rod 25 is fixedly connected to the sliding hole; the drive part is a nut seat 26; the nut seat 26 is threadedly connected to the screw 24, the nut seat 26 is slidably connected to the guide rod 25, and the nut seat 26 is fixedly connected to the thick pipe 9.

[0054] The driving components include a motor housing 27 and a servo motor; the motor housing 27 is fixedly connected to the outer wall of the fixed base 1; the servo motor is fixedly connected to the inner wall of the motor housing 27; the screw 24 is rotatably connected to the motor housing 27 and is fixedly connected to the output shaft of the servo motor.

[0055] The motion unit includes a motion block 28, a motion hole on the linkage plate 16, and a linkage component for driving the motion block 28 to perform intermittent vertical reciprocating motion; the motion block 28 is slidably connected to the motion hole; the auxiliary plate 14 is located on the motion trajectory of the motion block 28; a torsion spring is provided on the auxiliary shaft 13, and the two ends of the torsion spring are respectively connected to the auxiliary shaft 13 and the auxiliary hole.

[0056] The air guide assembly also includes several pushing units equidistantly arranged along the length of the air duct 10; the pushing unit includes a rotating shaft 29, an elliptical disk 30, and a rotating component for driving the rotating shaft 29 to rotate; the rotating shaft 29 is rotatably connected to the air duct 10; the elliptical disk 30 is fixedly connected to the rotating shaft 29; the moving component includes a long rod 31, a stop block 32, and a second spring; the two ends of the long rod 31 are fixedly connected to the linkage plate 16 and the stop block 32 respectively; the stop block 32 abuts against the elliptical disk 30; the two ends of the second spring are connected to the linkage plate 16 and the linkage groove respectively.

[0057] The power components include a power shaft 33, a first gear 34, a first cam 35, a side block 36, a third spring, several first racks 37, and a through hole in the air pipe 10; the power shaft 33 is rotatably connected to the air pipe 10; the first gear 34 and the first cam 35 are both fixedly connected to the power shaft 33; the side block 36 is fixedly connected to the slider 19, and the side block 36 abuts against the first cam 35; the two ends of the third spring are respectively connected to the slider 19 and the concave block 18; there is a certain distance between the tooth segments of two adjacent first racks 37, and two adjacent first racks 37 are fixedly connected to form a discontinuous rack; the discontinuous rack passes through the through hole and is fixedly connected to the chamber; the first rack 37 is located on the movement trajectory of the first gear 34, and the first gear 34 can mesh with the first rack 37.

[0058] The moving parts include a second cam 38, a base plate 39, and a fourth spring; the second cam 38 is fixedly connected to the power shaft 33; the base plate 39 is fixedly connected to the moving block 28 and abuts against the second cam 38; the two ends of the fourth spring are respectively connected to the moving block 28 and the linkage plate 16.

[0059] It also includes several auxiliary components equidistantly arranged along the length of the chamber; the auxiliary components include an auxiliary box 40, a second rack 41, and a sliding hole on the auxiliary box 40; the auxiliary box 40 is fixedly connected to the chamber; the second rack 41 is fixedly connected to the inner wall of the auxiliary box 40; the rotating shaft 29 passes through the sliding hole and extends into the auxiliary box 40; the rotating component is a second gear 42; the second gear 42 is fixedly connected to the rotating shaft 29, and the second gear 42 meshes with the second rack 41.

[0060] Specific implementation process: Example 1: Application in industrial automation scenarios (taking a PLC control system as an example) 1. Scene and Interference Analysis: Target equipment: Programmable logic controller (PLC) and its I / O modules, field sensors.

[0061] Main sources of interference: In industrial settings, there are electromagnetic interferences (such as 50Hz power frequency interference, high frequency radio frequency interference, and transient pulse interference) and signal interferences (such as same frequency interference and random noise) generated by high-power equipment such as servo motors and frequency converters.

[0062] Protection requirements: Prevent control signal distortion, program crashes or communication interruptions, and ensure stable execution of control logic.

[0063] 2. Selection and integration of anti-interference device components: First layer (high-energy discharge): A surge protector is integrated and installed at the input port of the anti-interference module, and its casing is properly grounded to the metal cabinet or grounding busbar of the industrial equipment. This layer is mainly used to discharge lightning surges and high-energy electrostatic pulses from the power grid or induced sources, protecting subsequent core circuits.

[0064] The second layer (conducted interference filtering): Since the PLC control system involves both power supply (24VDC) and signals (RS485, 0-10V analog signals), two types of filters need to be set up in parallel. For power supply lines, a low-pass π-type filter is connected to the output of the surge protector to effectively filter out high-frequency conducted interference. For communication and analog signal lines, a low-pass or band-pass filter with a specific cutoff frequency is selected according to the interference spectrum at the site (such as the inverter carrier frequency) to suppress out-of-band noise. All filter input and output cables are passed through an anti-interference ferrite core, with the core preferably placed near the port. For signal lines severely affected by inverter radiation, the cable can be wound 2-3 turns around the ferrite core to enhance the suppression effect.

[0065] The third layer (path isolation and cutoff): For the signal loop, an opto-isolation module or signal isolation transformer is used after the filter to achieve complete electrical isolation between the PLC controller side and the field sensor / actuator side, completely blocking common-mode interference caused by ground potential difference. For the power supply loop, an isolated DC-DC power supply module is used to power the sensitive circuit.

[0066] The fourth layer (radiation shielding protection): The complete circuit board integrating the surge protector, filter, isolator and magnetic ring is encapsulated in a continuous metal shield (such as galvanized steel plate or aluminum shell). The shield is reliably grounded to protect against external space radiation interference and suppress radiation leakage of internal components.

[0067] Installation and Results: The customized anti-interference device was connected in series to the PLC's power input and critical signal channels. After implementation, the system no longer experienced PLC malfunctions, analog signal acquisition fluctuations, or communication interruptions when facing motor start-up and shutdown or inverter operation in the workshop, significantly improving control stability.

[0068] Example 2: Application in communication / network equipment scenarios (taking base station radio frequency unit as an example) 1. Scene and Interference Analysis: Target device: Radio remote unit (RRU) of wireless communication base station.

[0069] Main sources of interference: These mainly include signal interference (such as co-channel / adjacent-channel interference from other operators or equipment, and multipath interference caused by building reflections) and electromagnetic interference (high-frequency radio frequency interference in the environment, and lightning surges).

[0070] Protection requirements: Ensure the purity of base station signals, improve signal-to-noise ratio and receiving sensitivity, and reduce bit error rate and call drop rate.

[0071] 2. Selection and integration of anti-interference device components: First layer (high energy discharge): Surge protectors are integrated at both the feeder inlet (where it connects to the antenna) and the power inlet of the RRU, and the grounding resistance is ensured to meet the specifications (usually ≤5Ω) to prioritize the discharge of lightning-induced energy introduced by the antenna feeder.

[0072] The second layer (conducted interference filtering): For the RF signal path, a bandpass filter matched to the operating frequency band is designed and integrated to suppress out-of-band blocking interference and adjacent channel interference. Low-pass filters are used on power lines and low-frequency control lines to filter out high-frequency noise conducted through the power lines. Anti-interference ferrite rings are used on the interconnects between functional modules inside the RRU, as well as on cables entering and leaving the chassis, to suppress common-mode radiation.

[0073] The third layer (path isolation): High-speed digital isolators are used for electrical isolation between the digital control section and the RF analog section to prevent digital noise crosstalk to sensitive RF links. Isolated DC-DC modules are used to provide independent and clean power to different functional areas.

[0074] The fourth layer (radiation shielding protection): The original housing of the RRU is a robust metal shield. When the anti-interference module of this invention is installed inside it as a sub-module, it also adopts a metal shielded cavity structure to form "double shielding" and ensures that both are well grounded, effectively preventing internal electromagnetic leakage and external interference intrusion.

[0075] Installation and Results: RRUs integrating this anti-interference solution were deployed in complex electromagnetic environments in urban areas. Tests showed that, in environments with strong adjacent channel interference and multipath effects, the average bit error rate of this base station decreased by approximately 40% compared to before the equipment was installed, and call quality and data rates in edge areas were significantly improved.

[0076] Example 3: In actual use, the anti-interference component 43 generates heat, which is then supplied by the blower 7. The airflow generated by the blower 7 is directed through the air guide hole 4 and the exhaust hole 5 to the heat dissipation hole 6 area, thereby directly acting on the vicinity of the heat source, that is, accelerating the heat to be discharged from the heat dissipation hole 6.

[0077] The design of the air duct 2 and the exhaust hole 5 guides the airflow along a predetermined path (left → right), preventing turbulence or eddies from causing heat accumulation, achieving a highly efficient "forward and backward" airflow layout, and improving cooling uniformity.

[0078] A dustproof plate 3 is installed on the top hole to prevent external dust from entering the fixing groove, thereby protecting the anti-interference device component 43 and the internal air guide structure; while the positive pressure air supply of the blower 7 can also suppress the backflow of external pollutants from the heat dissipation hole 6 to a certain extent, further improving the reliability of the system.

[0079] During the airflow through the duct 2, the servo motor is activated, and the output shaft of the servo motor drives the screw 24 to rotate. During the rotation of the screw 24, the nut seat 26 can drive the air pipe 10 to reciprocate along the length of the guide rod 25 through the thick pipe 9.

[0080] The reciprocating air pipe 10 drives the air hole 11 to dynamically spray airflow along the length of the air duct 2, causing the airflow to penetrate the dustproof plate 3 from bottom to top and directly impact the bottom surface of the anti-interference device assembly 43, forming an impact cooling effect. This makes the bottom of the entire anti-interference device assembly 43 more uniformly exposed to airflow and avoids the accumulation of local hot spots. In conjunction with the movement of the air pipe 10, the airflow contact surface is continuously refreshed to prevent heat exchange attenuation caused by the thickening of the boundary layer.

[0081] Therefore, by providing vertical auxiliary cooling through the air vents 11, and then pushing the airflow from left to right through the air guide holes 4 to form a three-dimensional multi-directional heat dissipation network, the overall heat dissipation capacity can be further improved under the synergistic effect of the main and auxiliary airflows.

[0082] During the initial flow into the coarse pipe 9, the increased cross-sectional area reduces the airflow velocity and weakens the turbulence intensity, acting as a buffer and stabilizing agent. This helps eliminate any upstream pulsations or eddies, providing a stable air source for subsequent fine-tuning. Upon entering the fine pipe 8 from the coarse pipe 9, the sudden decrease in cross-sectional area significantly increases the velocity, creating a high-speed jet. Thus, a clear pressure gradient is formed through the transition from the coarse pipe 9 to the fine pipe 8, driving the airflow forward continuously and preventing backflow or stagnation.

[0083] Furthermore, the narrow channel of the thin tube 8 has a certain filtering effect on dust particles; and the shearing force generated when the high-speed airflow passes through can reduce particle adhesion. Combined with positive pressure air intake, it has a certain anti-clogging and self-cleaning ability.

[0084] After the airflow is ejected from the air intake hole 15 on the air pipe 10, it enters the auxiliary hole of the auxiliary block 12. After being reorganized through the channel, it is laterally dispersed and then acts on the bottom of the anti-interference device assembly 43 from bottom to top. This two-stage airflow guiding mechanism of "main channel → auxiliary hole" expands the originally linearly distributed airflow into a surface coverage, effectively increasing the cooling area.

[0085] During the reciprocating motion of the air duct 10 along the length of the air guide duct 2, the second gear 42 meshes with the second rack 41, thereby driving the rotating shaft 29 to rotate. During the rotation of the rotating shaft 29, the elliptical disk 30 rotates synchronously. During the rotation of the elliptical disk 30, when the long axis end of the elliptical disk 30 abuts against the stop block 32, the stop block 32 drives the linkage plate 16 to slide into the linkage groove through the long rod 31, and the second spring is compressed; when the short axis end of the elliptical disk 30 abuts against the stop block 32, the second spring drives the linkage plate 16 to return to its original position.

[0086] By adjusting the relative distance between the two linkage plates 16, the cross-sectional area of ​​the airflow through the air inlet 15 can be actively controlled. When the linkage plates 16 are closer together, the effective flow area of ​​the air inlet 11 decreases, the airflow velocity increases, and the flow rate decreases; conversely, when they are farther apart, the opposite occurs. This variable interface design allows the airflow to be ejected in a pulsed manner, forming intermittent impact cooling. Compared to continuous airflow, pulsed airflow is more likely to disrupt the thermal boundary layer, improving instantaneous heat transfer efficiency, and maintaining good heat dissipation performance, especially at low average wind speeds.

[0087] During the reciprocating motion of the air duct 10 along the length of the air guide duct 2, the first gear 34 intermittently meshes with the first rack 37, thereby driving the power shaft 33 to rotate intermittently. During the intermittent rotation of the power shaft 33, the second cam 38 rotates synchronously. During the rotation of the second cam 38, when the protrusion of the second cam 38 abuts against the base plate 39, the base plate 39 drives the moving block 28 to move vertically upward, and the fourth spring is stretched; when the protrusion of the second cam 38 no longer abuts against the base plate 39, the fourth spring drives the moving block 28 to return to its original position.

[0088] During the intermittent vertical reciprocating motion of the moving block 28, the auxiliary plate 14 can make intermittent reciprocating swings at a certain angle under the action of the moving block 28 and the torsion spring.

[0089] By periodically changing the effective flow area and outflow direction of the auxiliary orifice during the oscillation of the auxiliary plate 14, the airflow is ejected in a "pulse-like" or "scanning" manner, breaking the fixed path of the static outflow and allowing the cooling airflow to more evenly cover the entire bottom area of ​​the anti-interference device assembly 43. At the same time, the oscillation of the auxiliary plate 14 can induce periodic changes in the airflow direction and velocity, significantly increasing airflow disturbance and vortex generation, effectively disrupting the thermal boundary layer in the wall-attached area, improving convective heat transfer efficiency, and further enhancing the cooling capacity.

[0090] When the linkage plate 16 expands the air intake hole 15, the linkage plate 16 drives the side plate 17 to move synchronously through the connecting rod, thereby causing the side plate 17 to synchronously reduce the outflow area of ​​the air hole 11, resulting in a brief accumulation of airflow and pressure increase in the air hole 11; subsequently, the side plate 17 moves back to release the throttling, forming a high-speed pulse airflow. This "pressure accumulation-burst" mode can enhance the impact cooling effect, more effectively destroy the thermal boundary layer at the bottom of the anti-interference device assembly 43, and improve the instantaneous heat exchange efficiency.

[0091] The reverse change in the cross-sectional area of ​​the air inlet 15 and the air outlet 11 keeps the system's air intake and exhaust flow rates in a dynamic balance, avoiding pressure oscillations or airflow backflow caused by sudden changes in flow area, ensuring stable and orderly airflow in the chamber, and improving overall flow reliability.

[0092] During the intermittent rotation of the power shaft 33, the first cam 35 rotates synchronously. During the rotation of the first cam 35, when the protrusion of the first cam 35 abuts against the side block 36, the side block 36 drives the slider 19 to move vertically upwards, stretching the third spring; when the protrusion of the first cam 35 no longer abuts against the side block 36, the third spring drives the slider 19 to return to its original position. Therefore, the slider 19 can perform intermittent vertical reciprocating motion. During the movement of the slider 19, the side rod 20 moves synchronously.

[0093] When the side rod 20 rises and comes into contact with the air hole 11, it temporarily reduces part of the cross-sectional area of ​​the air hole 11, causing the air pressure inside the air hole 11 to rise continuously; when it moves down, it opens instantly, and the accumulated high-pressure airflow is explosively discharged, forming a high-intensity pulse jet, which more effectively destroys the thermal boundary layer at the bottom of the anti-interference device assembly 43, thereby further improving the cooling capacity.

[0094] When the side rod 20 is below the vent 11 and not in contact with it, the equidistant fixed rods 22 are positioned above the vent 11, physically limiting the airflow that is about to be discharged. This constrains the airflow to move upwards in the vertical direction, reducing airflow deflection caused by uneven pressure or structural disturbances within the chamber, and improving the consistency of the outflow. When the side plate 17 is in contact with the vent 11, its top and the fixed rods 22 are spatially staggered, forming a grid-like barrier (i.e., "similar to a mesh plate with several through holes") composed of the fixed rods 22 and the closed side rods 20. The formation of the "mesh plate" will create multiple parallel jets when the pulsed airflow passes through the gaps in the "mesh plate". The outflow direction is more consistent, reducing the divergence angle and allowing the cooling airflow to act more concentratedly on the target area at the bottom of the anti-interference device assembly 43, thereby improving energy utilization efficiency.

[0095] During the intermittent vertical reciprocating motion of the side rod 20, the sweeping block 23, under the combined action of the side rod 20 and the first spring, can also perform intermittent vertical reciprocating motion. Therefore, during the movement of the sweeping block 23 with the air tube 10, when the sweeping block 23 makes periodic vertical movements relative to the air hole 11, its stroke covers the area between two adjacent fixed rods 22, which can physically scrape away dust, flocculent matter, and other foreign objects attached to the rod wall or cavity surface, preventing the reduction or even blockage of the ventilation cross-section due to dust accumulation during long-term operation.

[0096] In summary, this integrated heat dissipation system achieves efficient, uniform, and stable three-dimensional cooling through multi-stage dynamic airflow regulation and self-cleaning design, significantly improving the heat dissipation performance and long-term operational reliability of the anti-interference component 43. From the exhaust air from the blower 7 to the cleaning of the cleaning block 23, each link works synergistically to form a complete cooling system of "forced heat dissipation - flow optimization - pulse enhancement - intelligent maintenance".

[0097] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A dynamic airflow adaptive heat dissipation device for an anti-interference device assembly, comprising a fixed base, an anti-interference device assembly, and a fixing slot formed on the fixed base, wherein the anti-interference device assembly is fixedly connected to the fixing slot, characterized in that: It also includes an air-cooling mechanism; the air-cooling mechanism includes a blower, an air duct, a dustproof plate, a chamber opened in the fixed base, a top hole opened in the chamber, an air guide hole opened in the chamber, an exhaust hole opened in the air duct, several heat dissipation holes opened in the chamber, and several air guide components equidistantly arranged along the width direction of the chamber; the blower is fixedly connected to the outer wall of the fixed base; the air duct is fixedly connected to the chamber; the two sides of the air guide hole are respectively connected to the blower and the air duct; the top hole is connected to the fixed groove, and the dustproof plate is fixedly connected to the top hole; the air guide components include a thin tube, a thick tube, an air pipe, several air hole groups equidistantly opened on the air pipe along the length direction of the air pipe, and a drive part for driving the thick tube to reciprocate along the length direction of the air duct; the thin tube is slidably connected to the exhaust hole, and the two ends of the thin tube are respectively connected to the two ends of the thick tube and the air pipe; the air hole group faces the dustproof plate.

2. The dynamic airflow adaptive heat dissipation device for an anti-interference device assembly according to claim 1, characterized in that: It also includes several auxiliary components equidistantly arranged along the length of the chamber; the auxiliary components include an auxiliary block, an auxiliary hole opened on the auxiliary block, and auxiliary parts symmetrically arranged on both sides of the auxiliary hole; the auxiliary block is fixedly connected to the chamber; the auxiliary part includes an auxiliary shaft, an auxiliary plate, and a motion unit for driving the auxiliary plate to swing intermittently; the auxiliary shaft is rotatably connected to the auxiliary hole; the auxiliary plate is fixedly connected to the auxiliary shaft; the air guide assembly also includes several air inlet holes equidistantly opened on the air pipe along the length of the air pipe; the air inlet holes communicate with the auxiliary holes; the auxiliary holes face the dustproof plate.

3. The dynamic airflow adaptive heat dissipation device for an anti-interference device assembly according to claim 2, characterized in that: The air guide assembly also includes several linkage parts equidistantly arranged along the length of the air duct; the linkage parts include linkage units symmetrically arranged on both sides of the air intake hole; the linkage unit includes a linkage plate, a linkage groove opened on the air intake hole, and a moving part for driving the linkage plate to reciprocate along the length of the linkage groove; the linkage plate and the linkage groove are slidably connected.

4. A dynamic airflow adaptive heat dissipation device for an anti-interference device assembly according to claim 3, characterized in that: The air vent assembly includes air vents symmetrically arranged on both sides of the air intake; the linkage groove communicates with the air vents; the linkage unit also includes a linkage rod and a side plate; the two ends of the linkage rod are fixedly connected to the linkage plate and the side plate respectively; the end of the side plate away from the linkage rod extends into the air intake.

5. A dynamic airflow adaptive heat dissipation device for an anti-interference device assembly according to claim 4, characterized in that: The linkage unit also includes a concave block, a slider, several side rods respectively arranged on both sides of the slider, and a power component for driving the slider to perform intermittent vertical reciprocating motion; the concave block is fixedly connected to the side plate; the slider is slidably connected to the concave block; the side rods are fixedly connected to the slider, and the side rods are located below the air holes.

6. A dynamic airflow adaptive heat dissipation device for an anti-interference device assembly according to claim 5, characterized in that: The linkage unit also includes a fixed block and several fixed rods; the fixed block is fixedly connected to the chamber; the several fixed rods are all fixedly connected to the fixed block, and the fixed block is located above the air hole.

7. A dynamic airflow adaptive heat dissipation device for an anti-interference device assembly according to claim 6, characterized in that: The linkage unit also includes several cleaning components; the cleaning components are located between two adjacent fixed rods; the cleaning components include a guide block, a cleaning block, a first spring, and a guide groove on the guide block; the guide block is fixedly connected to the air hole; the cleaning block is slidably connected to the guide block, and the cleaning block is located on the movement trajectory of the side rod; the two ends of the first spring are respectively connected to the cleaning block and the guide groove.

8. A dynamic airflow adaptive heat dissipation device for an anti-interference device assembly according to claim 7, characterized in that: It also includes a drive unit; the drive unit includes a screw, a guide rod, a sliding hole on the air duct, and a drive component for driving the screw to rotate; the screw is rotatably connected to the chamber; the guide rod is fixedly connected to the sliding hole; the drive part is a nut seat; the nut seat is threadedly connected to the screw, the nut seat is slidably connected to the guide rod, and the nut seat is fixedly connected to the thick pipe.

9. A dynamic airflow adaptive heat dissipation device for an anti-interference device assembly according to claim 8, characterized in that: The motion unit includes a motion block, a motion hole on the linkage plate, and a linkage component for driving the motion block to perform intermittent vertical reciprocating motion; the motion block is slidably connected to the motion hole; the auxiliary plate is located on the motion trajectory of the motion block; a torsion spring is provided on the auxiliary shaft, and the two ends of the torsion spring are connected to the auxiliary shaft and the auxiliary hole respectively.

10. A dynamic airflow adaptive heat dissipation device for an anti-interference device assembly according to claim 9, characterized in that: The air guide assembly also includes several pushing units equidistantly arranged along the length of the air duct; each pushing unit includes a rotating shaft, an elliptical disk, and a rotating component for driving the rotating shaft to rotate; the rotating shaft is rotatably connected to the air duct; the elliptical disk is fixedly connected to the rotating shaft; the moving component includes a long rod, a stop block, and a second spring; both ends of the long rod are fixedly connected to the linkage plate and the stop block respectively; the stop block abuts against the elliptical disk; both ends of the second spring are connected to the linkage plate and the linkage groove respectively.

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