Active heat dissipation device of large-flow centrifugal fan

Abstract

The invention discloses an active heat dissipation device of a large-flow centrifugal fan, and relates to the technical field of heat dissipation equipment.The active heat dissipation device comprises a centrifugal fan body, a motor is fixedly connected to one side of the centrifugal fan body, and a water-cooling heat dissipation device is arranged on the side, away from the centrifugal fan body, of the motor; an automatic supplement feedback mechanism is arranged on the side, away from the motor, of the water-cooling heat dissipation device. Through the arrangement of the automatic supplement feedback mechanism, the floating ball body is used for automatically feeding back the liquid level of the cooling liquid, the floating ball body can sensitively act along with rising and falling of the liquid level of the cooling liquid according to the buoyancy principle, and compared with a traditional complex electronic liquid level sensor which is prone to interference, the floating ball is simple and direct in structure and convenient to use. The liquid level detection device is simple in structure, is not easily influenced by factors such as electromagnetic interference and conductivity change of cooling liquid, can stably work in various complex environments, ensures accuracy and reliability of liquid level detection, provides an accurate basis for automatic supplement of the cooling liquid, and effectively avoids the problem of heat dissipation caused by misjudgment of the liquid level.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation equipment, and in particular to an active heat dissipation device for a large-flow centrifugal fan. Background Art

[0002] Large-flow centrifugal fans play a key role in many fields such as industrial production and ventilation. However, a large amount of heat is generated during their operation. If the heat cannot be dissipated in a timely and effective manner, the fan performance will be reduced, the life span will be shortened, and even failures will occur, seriously affecting the normal production. Water-cooled radiators have become an important choice for active heat dissipation of large-flow centrifugal fans due to their efficient heat dissipation capabilities. Existing water-cooled radiators have many problems in monitoring and replenishing the coolant level. Most rely on the power system to achieve liquid level detection and replenishment control. It is common to use electronic liquid level sensors to sense liquid level changes, and then the electronic control unit controls the replenishment pump. However, this method cannot work properly in places with unstable power supply, such as industrial facilities in remote areas, field equipment, or in emergencies such as power outages. Once the electronic liquid level sensor loses power, it cannot transmit the liquid level signal, and the replenishment pump loses its power source, which greatly reduces the cooling effect of the fan and even faces the risk of overheating and damage. Moreover, the traditional refilling system is not perfect in design and lacks a reliable anti-leakage mechanism. The general refilling pipe connection mostly adopts simple sealing gaskets or adhesive joints. After long-term use, the connection is easily loosened and aged due to factors such as coolant corrosion, temperature changes, and mechanical vibration, resulting in coolant leakage. Once a leak occurs, the coolant will not only be wasted, but also may cause damage to surrounding equipment and the environment. For example, if the coolant leaks into electrical equipment, it may cause a short circuit fault; if it leaks to the ground, if it is corrosive, it will also damage ground facilities. This undoubtedly increases maintenance costs and downtime. In addition, the accuracy of some liquid level detection devices is low. For example, the float of a common float-type liquid level gauge is affected by impurities in the coolant and is prone to jamming, resulting in inaccurate liquid level detection and misjudgment. Some capacitive liquid level sensors are affected by factors such as changes in coolant conductivity and electromagnetic interference, and the measurement accuracy is difficult to guarantee, which ultimately leads to untimely or excessive replenishment of coolant. If the coolant is not replenished in time, the cooling effect of the fan will be affected; excessive replenishment may cause excessive system pressure, which will also affect the normal operation and heat dissipation efficiency of the water-cooled radiator.

[0003] Therefore, an active heat dissipation device for a large-flow centrifugal fan is proposed to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an active heat dissipation device for a large-flow centrifugal fan to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an active heat dissipation device for a large flow centrifugal fan, comprising: a centrifugal fan body, a motor is fixedly connected to one side of the centrifugal fan body, a water-cooling heat dissipation device is arranged on the side of the motor away from the centrifugal fan body, an automatic replenishment feedback mechanism is arranged on the side of the water-cooling heat dissipation device away from the motor, and an auxiliary feeding mechanism is arranged above the automatic replenishment feedback mechanism; The automatic replenishment feedback mechanism is used to provide feedback on the liquid level of the coolant in the water-cooling heat dissipation device and automatically replenish it when the water-cooling heat dissipation device is used to actively dissipate heat for the centrifugal fan body; The auxiliary feeding mechanism is used to assist the circulation of liquid to avoid leakage when replenishing the cooling liquid.

[0006] Preferably, the automatic replenishment feedback mechanism includes a liquid storage tank, which is fixedly connected to one side of the water-cooled heat dissipation device, a partition is fixedly connected to the middle part of the liquid storage tank laterally, an intermittent plate is fixedly connected to one side of the liquid storage tank vertically, the partition is fixedly connected to the intermittent plate, a rotating shaft is rotatably connected to the middle part of the intermittent plate, a floating sphere is fixedly connected to the side of the rotating shaft close to the partition, a telescopic sleeve is fixedly connected to the side of the rotating shaft away from the floating sphere, a limiting body is arranged below the end of the telescopic sleeve close to the rotating shaft, the limiting body is fixedly connected to the intermittent plate surface, and a spherical rotating rod is rotatably connected to the end of the telescopic sleeve away from the rotating shaft.

[0007] Preferably, the automatic replenishment feedback mechanism also includes a spherical rotating rod, a side of the intermittent plate away from the partition is fixedly connected to the U-shaped frame, the spherical rotating rod is slidably connected in the U-shaped frame, the end of the spherical rotating rod away from the telescopic sleeve is fixedly connected to the U-shaped auxiliary body, the end of the U-shaped auxiliary body away from the spherical rotating rod is slidably connected to the positioning rod, the positioning rod is fixedly connected in the U-shaped frame, the upper end of the positioning rod is sleeved with an auxiliary spring body, the two ends of the auxiliary spring body are respectively fixedly connected to the inner surface of the U-shaped frame and the upper surface of the U-shaped auxiliary body, the end of the spherical rotating rod away from the telescopic sleeve is internally threaded with a threaded rod, the threaded rod extends upward through the U-shaped frame and is fixedly connected to a gear set, the gear set is rotatably connected to a supply barrel above one end of the threaded rod, the end of the supply barrel away from the gear set is fixedly connected to the top of the liquid storage tank, and the eccentric part of the gear set is fixedly connected to a catheter.

[0008] Preferably, the auxiliary feeding mechanism includes a radial trough body, which is fixedly connected to an eccentric part of a side of the supply barrel close to the gear group, an A cross is fixedly connected to the upper end of the radial trough body, an A spring is fixedly connected to the center of a side of the A cross close to the gear group, and a blocking block is fixedly connected to the end of the A spring away from the A cross. The upper port diameter of the radial trough body is larger than the lower port diameter. A through hole is provided at the eccentric part of the gear group, a B cross is fixedly connected to the bottom of the through hole of the gear group, a B spring is fixedly connected to the center of the upper surface of the B cross, and a trigger block is fixedly connected to the end of the B spring away from the B cross.

[0009] Preferably, a coolant is provided under the partition, the floating sphere is composed of a connecting rod and a sphere, and the telescopic sleeve is composed of a sleeve, a built-in spring and a telescopic body.

[0010] Preferably, the spherical rotating rod is composed of a rotating sphere and an internal threaded column, the gear set is composed of a small gear and a large gear, and the conduit extends through the partition and is connected to the coolant arranged below the partition.

[0011] Preferably, the lower surface of the blocking block is an arc-shaped smooth surface, the through hole of the gear set is connected to the conduit, and the upper surface of the trigger block is an arc-shaped smooth surface.

[0012] Compared with the prior art, the present invention provides an active heat dissipation device for a large flow centrifugal fan, which has the following beneficial effects: 1. Through the setting of automatic replenishment feedback mechanism, the floating ball is used to automatically feedback the coolant level. Using the buoyancy principle, the floating ball can move sensitively with the rise and fall of the coolant level. Compared with the traditional complex and easily interfered electronic liquid level sensor, the floating ball structure is simple and direct, and is not easily affected by electromagnetic interference, coolant conductivity changes and other factors. It can work stably in various complex environments, ensuring the accuracy and reliability of liquid level detection, providing accurate basis for automatic coolant replenishment, and effectively avoiding heat dissipation problems caused by misjudgment of liquid level.

[0013] 2. The automatic replenishment feedback mechanism does not require electricity. The liquid level is automatically fed back and replenished under the setting of the mechanical structure. The automatic replenishment without power startup gets rid of the dependence on the power system and ensures that under any power conditions, when the coolant level is lower than the set value, the mechanical structure can be started in time for replenishment to maintain the normal operation of the water-cooled radiator, ensure the heat dissipation effect of the large-flow centrifugal fan, avoid overheating and damage of the fan due to power problems, greatly improve the stability and reliability of equipment operation, reduce the demand for external power supply, electronic components and complex circuits, achieve energy independence, reduce system failure points, and improve system stability and maintainability.

[0014] 3. Through the setting of the auxiliary feeding mechanism, when it is vertical, the arc surface setting of the blocking block and the trigger block triggers the blocking block and the trigger block to conflict with each other, controlling the coolant to flow into the conduit through the groove of the gear set for replenishment, and under the guidance of the funnel-shaped arc surface of the radial groove body, the coolant accurately flows to the through hole opened on the gear set, and then enters the conduit for replenishment. When it is not vertical, the blocking block tightly seals the flow channel under the action of the A spring, effectively preventing coolant leakage, ensuring that the coolant will not accidentally flow out in the non-replenishment state, protecting surrounding equipment from damage caused by coolant leakage, reducing the frequency of equipment shutdown maintenance due to leakage, and ensuring the stable operation of the large-flow centrifugal fan water-cooled heat dissipation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is the overall structural diagram of the present invention from another angle; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 This is a diagram showing the internal structure of the partition of the present invention; Figure 5 For the present invention Figure 4 The structure diagram at B is enlarged; Figure 6 For the present invention Figure 4 The enlarged structure diagram at C in the middle; Figure 7 This is a structural diagram of the automatic replenishment feedback mechanism and the auxiliary feeding mechanism of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point D in the middle.

[0016] In the figure: 1. Centrifugal fan body; 11. Motor; 12. Water cooling device; 2. Automatic replenishment feedback mechanism; 21. Liquid storage tank; 22. Partition plate; 23. Intermittent plate; 24. Rotating shaft; 25. Floating sphere; 26. Telescopic sleeve; 27. Limiting body; 28. Spherical rotating rod; 29. ​​U-shaped frame; 210. U-shaped auxiliary body; 211. Positioning rod; 212. Auxiliary spring body; 213. Threaded rod; 214. Gear set; 215. Supply barrel; 216. Conduit; 3. Auxiliary feeding mechanism; 31. Radial trough; 32. A cross; 33. A spring; 34. Sealing block; 35. B cross; 36. B spring; 37. Trigger block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0019] Example: Please refer to Figures 1 to 6 As shown: In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides an active heat dissipation device for a large-flow centrifugal fan, comprising: a centrifugal fan body 1, a motor 11 is fixedly connected to one side of the centrifugal fan body 1, a water-cooling heat dissipation device 12 is arranged on the side of the motor 11 away from the centrifugal fan body 1, an automatic replenishment feedback mechanism 2 is arranged on the side of the water-cooling heat dissipation device 12 away from the motor 11, and an auxiliary feeding mechanism 3 is arranged above the automatic replenishment feedback mechanism 2; The automatic replenishment feedback mechanism 2 is used to provide feedback on the liquid level of the coolant in the water-cooled heat sink 12 and automatically replenish it when the water-cooled heat sink 12 is used to actively dissipate heat for the centrifugal fan body 1. The automatic replenishment feedback mechanism 2 includes a liquid storage tank 21, which is fixedly connected to one side of the water-cooled heat sink 12. A partition 22 is fixedly connected to the middle of the liquid storage tank 21 horizontally. The partition 22 is mainly used to isolate the coolant. An intermittent plate 23 is fixedly connected to one side of the liquid storage tank 21 vertically. The partition 22 is fixedly connected to the intermittent plate 23. Coolant is arranged below the partition 22. A rotating shaft 2 is rotatably connected to the middle of the intermittent plate 23. 4. A floating sphere 25 is fixedly connected to one side of the rotating shaft 24 close to the partition 22. The sphere in the floating sphere 25 is made of hollow metal aluminum. The floating sphere 25 is composed of a connecting rod and a sphere. A telescopic sleeve 26 is fixedly connected to one side of the rotating shaft 24 away from the floating sphere 25. The telescopic sleeve 26 is composed of a sleeve, a built-in spring and a telescopic body. A limiting body 27 is arranged below one end of the telescopic sleeve 26 close to the rotating shaft 24. The limiting body 27 is mainly used to limit the telescopic sleeve 26. The limiting body 27 is fixedly connected to the surface of the intermittent plate 23. A spherical rotating rod 28 is rotatably connected to one end of the telescopic sleeve 26 away from the rotating shaft 24. The automatic replenishment feedback mechanism 2 also includes a spherical rotating rod 28, which is composed of a rotating ball and an internal threaded column. The side of the intermittent plate 23 away from the partition 22 is fixedly connected to a U-shaped frame 29, and the spherical rotating rod 28 is slidably connected in the U-shaped frame 29. The end of the spherical rotating rod 28 away from the telescopic sleeve 26 is fixedly connected to a U-shaped auxiliary body 210, and the end of the U-shaped auxiliary body 210 away from the spherical rotating rod 28 is slidably connected to a positioning rod 211, which is mainly used to assist the U-shaped auxiliary body 210 and the spherical rotating rod 28 to move up and down stably. The positioning rod 211 is fixedly connected in the U-shaped frame 29, and the upper end of the positioning rod 211 is sleeved with an auxiliary spring body 212, which is mainly used to assist the U-shaped auxiliary body 21 0 and the spherical rotating rod 28 are reset, the two ends of the auxiliary spring body 212 are respectively fixedly connected to the inner surface of the U-shaped frame 29 and the upper surface of the U-shaped auxiliary body 210, the end of the spherical rotating rod 28 away from the telescopic sleeve 26 is internally threadedly connected with a threaded rod 213, the threaded rod 213 extends upward to penetrate the U-shaped frame 29 and is fixedly connected with a gear set 214, the gear set 214 is composed of a small gear and a large gear, the gear set 214 is rotatably connected with a supply barrel 215 above the end away from the threaded rod 213, the end of the supply barrel 215 away from the gear set 214 is fixedly connected to the top of the liquid storage tank 21, the eccentric part of the gear set 214 is fixedly connected with a conduit 216, the conduit 216 extends through the partition 22 and is connected to the coolant arranged below the partition 22.

[0020] For further examples, please refer to Figures 7 and 8 As shown: The auxiliary feeding mechanism 3 is used to assist the circulation of liquid to avoid leakage when replenishing the coolant. The auxiliary feeding mechanism 3 includes a radial slot 31. The radial slot 31 is mainly used to assist the circulation of the coolant. The radial slot 31 is fixedly connected to the eccentric part of one side of the supply barrel 215 close to the gear set 214. The upper end of the radial slot 31 is fixedly connected to an A cross 32. The center of the side of the A cross 32 close to the gear set 214 is fixedly connected to an A spring 33. The end of the A spring 33 away from the A cross 32 is fixedly connected to a blocking block 34. The lower surface of the blocking block 34 is an arc-shaped smooth surface. The upper end of the radial slot 31 The diameter of the opening is larger than the diameter of the lower port. A through hole is opened at the eccentric part of the gear set 214. The through hole of the gear set 214 is connected to the conduit 216. A B cross 35 is fixedly connected to the bottom of the through hole of the gear set 214. A B spring 36 is fixedly connected to the center of the upper surface of the B cross 35. The B spring 36 and the A spring 33 are mainly used to assist the movement and reset of the blocking block 34 and the trigger block 37. The end of the B spring 36 away from the B cross 35 is fixedly connected to the trigger block 37. The trigger block 37 is mainly used to cooperate with the blocking block 34 to assist in cooling liquid replenishment and avoid leakage. The upper surface of the trigger block 37 is an arc-shaped smooth surface.

[0021] Everything in the above example works like this: In the initial state: the floating sphere 25 floats on the surface of the coolant, the floating sphere 25 and the telescopic sleeve 26 remain parallel to the partition 22, the spherical rotating rod 28 does not move upward to push the threaded rod 213 and the gear set 214 to rotate, and the through holes opened on the radial slot 31 and the guide tube 216 are in an eccentric position.

[0022] The following is a working process of the automatic replenishment feedback mechanism 2 for providing feedback on and automatically replenishing the liquid level of the coolant in the water-cooling heat sink 12 when the water-cooling heat sink 12 is used to actively dissipate heat for the centrifugal fan body 1: During use, due to the high operating power and high speed of the centrifugal fan body 1, key parts of the centrifugal fan body 1, such as the motor 11, will generate high heat. When the heat is generated, the water-cooling heat sink 12 detects the heat generation and starts to dissipate the heat of the centrifugal fan body 1. When the centrifugal fan body 1 generates heat during operation, the heat is quickly transferred to the water-cooling heat sink 12. The coolant in the water-cooling heat sink 12 circulates in a closed pipe under the drive of a circulating pump. The coolant flows through multiple components in the water-cooling heat sink 12 and dissipates the heat to the surrounding air. The cooled coolant is again transported to the water-cooling block by the circulating pump for continuous circulation, thereby realizing active heat dissipation of the large centrifugal fan. In the process of active heat dissipation, the coolant is also evaporated and lost. When the coolant is consumed, the water level of the coolant in the liquid storage tank 21 decreases accordingly. During the decreasing process, the floating sphere 25 floats on the water surface under the buoyancy of the water level. As the water level decreases, the floating sphere 25 moves downward synchronously. Since the floating sphere 25 is connected to the telescopic sleeve 26 through the rotation of the rotating shaft 24 to maintain balance, the telescopic sleeve 26 moves upward with the rotating shaft 24 as the axis while the floating sphere 25 falls. At this time, with the assistance of the spring built into the telescopic sleeve 26, the telescopic sleeve 26 is stretched synchronously and deflected upward with the rotating shaft 24 as the axis. During the upward deflection of the telescopic sleeve 26, the spherical rotating rod 28 is pushed upward under the action of the thrust. When the spherical rotating rod 28 rises, it indirectly pushes the U-shaped auxiliary body 210 on the positioning rod 211 rises steadily, thereby assisting the stability of the rise of the spherical rotating rod 28. At this time, the auxiliary spring body 212 is compressed. Further, the rise of the spherical rotating rod 28 causes the threaded rod 213 connected to the internal thread of the spherical rotating rod 28 to rotate forwardly, and at the same time, the small gear in the gear set 214 fixedly connected to the threaded rod 213 rotates. Under the transmission effect of the gear, the positive rotation of the small gear in the gear set 214 drives the large gear to rotate in the opposite direction. When the large gear in the gear set 214 rotates, the through hole opened at the eccentric position of the gear set 214 is gradually perpendicular to the radial slot body 31, so that the coolant stored in the supply barrel 215 is conducted to the conduit 216, and then the coolant stored under the partition 22 is replenished to avoid coolant loss and overload; Furthermore, when the coolant is gradually replenished, the liquid level rises synchronously and gradually, and the rise of the liquid level pushes the floating sphere 25 to rise. Conversely, the rise of the floating sphere 25 causes the telescopic sleeve 26 to move downward and contract with the rotating shaft 24 as the axis, pulling the spherical rotating rod 28 downward, so that the threaded rod 213 rotates in the opposite direction, thereby controlling the small gear in the gear set 214 to rotate in the opposite direction, and the meshing causes the large gear to rotate forward. The radial slot 31 set below the supply barrel 215 gradually deviates from the guide tube 216, and the gear set 214 blocks the radial slot 31 to prevent continuous replenishment of the coolant. By setting up the automatic replenishment feedback mechanism 2, the floating ball 25 is used to automatically feedback the coolant level. By utilizing the buoyancy principle, the floating ball 25 can move sensitively with the rise and fall of the coolant level. Compared with the traditional complex and easily interfered electronic liquid level sensor, the floating ball structure is simple and direct, and is not easily affected by electromagnetic interference, changes in coolant conductivity and other factors. It can work stably in various complex environments, ensuring the accuracy and reliability of liquid level detection, providing accurate basis for automatic coolant replenishment, and effectively avoiding heat dissipation problems caused by misjudgment of liquid level.

[0023] Furthermore, the setting of the automatic replenishment feedback mechanism 2 does not require the supply of electricity. Under the setting of the mechanical structure, it automatically feeds back the liquid level and replenishes it. The automatic replenishment without power activation gets rid of the dependence on the power system and ensures that under any power conditions, when the coolant level is lower than the set value, the mechanical structure can be started in time for replenishment to maintain the normal operation of the water-cooled radiator, ensure the heat dissipation effect of the large-flow centrifugal fan, avoid overheating and damage of the fan due to power problems, greatly improve the stability and reliability of the equipment operation, reduce the demand for external power supplies as well as electronic components and complex circuits, achieve energy independence, reduce system failure points, and improve the stability and maintainability of the system.

[0024] Please refer to the above working process Figures 1 to 6 .

[0025] The following is the working process of the auxiliary feeding mechanism 3 for assisting the circulation of the liquid to avoid leakage when supplementing the coolant: When in use, according to the steps of the automatic replenishment feedback mechanism 2, the small gear in the gear set 214 rotates forward to drive the large gear to rotate in the opposite direction, and then the through hole in the large gear gradually approaches the radial slot body 31 until it is located directly below the radial slot body 31. Under the action of the restoring force of the B spring 36, the trigger block 37 is pushed to rise. The rise of the trigger block 37 approaches the blocking block 34 and contacts the blocking block 34, causing the blocking block 34 to rise and squeeze the A spring 33. Then, when the blocking block 34 rises, since the radial slot body 31 is funnel-shaped, the rise of the blocking block 34 causes the coolant to flow out of the The blocking block 34 circulates around the through hole in the gear set 214, so that the radial slot 31 is connected with the conduit 216, and the coolant flows into the conduit 216, and then the coolant lost under the partition 22 is replenished. Further, when the coolant is replenished, the through hole on the gear set 214 is gradually staggered with the radial slot 31. Then, under the action of the arc surface setting and the deflection force, the blocking block 34 and the trigger block 37 are respectively compressed into the radial slot 31 and the gear set 214, and the flow port of the radial slot 31 is blocked by the blocking block 34, so as to avoid leakage when the coolant is replenished; Through the setting of the auxiliary feeding mechanism 3, when it is vertical, the blocking block 34 and the trigger block 37 are triggered by the arc surface setting, and the blocking block 34 and the trigger block 37 conflict with each other, controlling the coolant to flow into the conduit 216 through the through groove of the gear set 214 for circulation and replenishment, and under the guidance of the funnel-shaped arc surface of the radial groove body 31, the coolant is accurately circulated to the through hole opened on the gear set 214, and then enters the conduit 216 for replenishment. When it is not vertical, the blocking block 34 tightly seals the circulation channel under the action of the A spring 33, effectively preventing the leakage of the coolant, ensuring that the coolant will not accidentally flow out in the non-replenishing state, protecting the surrounding equipment from damage caused by the leakage of the coolant, reducing the frequency of equipment shutdown maintenance due to leakage, and ensuring the stable operation of the large-flow centrifugal fan water-cooled heat dissipation system.

[0026] Please refer to the above working process Figures 7 and 8 .

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An active heat dissipation device for a large flow centrifugal fan, comprising: A centrifugal fan body (1), wherein a motor (11) is fixedly connected to one side of the centrifugal fan body (1), and a water cooling device (12) is provided on a side of the motor (11) away from the centrifugal fan body (1), characterized in that an automatic replenishment feedback mechanism (2) is provided on a side of the water cooling device (12) away from the motor (11), and an auxiliary feeding mechanism (3) is provided above the automatic replenishment feedback mechanism (2); The automatic replenishment feedback mechanism (2) is used to provide feedback on the liquid level of the coolant in the water-cooling heat dissipation device (12) and automatically replenish the coolant when the water-cooling heat dissipation device (12) is used to actively dissipate heat on the centrifugal fan body (1). The auxiliary feeding mechanism (3) is used to assist in the circulation of liquid and avoid leakage when replenishing the cooling liquid.

2. The active heat dissipation device for a large flow centrifugal fan according to claim 1, characterized in that: The automatic replenishment feedback mechanism (2) comprises a liquid storage tank (21), the liquid storage tank (21) is fixedly connected to one side of the water cooling device (12), a partition (22) is fixedly connected to the middle part of the liquid storage tank (21) in a transverse manner, an intermittent plate (23) is fixedly connected to one side of the liquid storage tank (21) in a vertical manner, the partition (22) is fixedly connected to the intermittent plate (23), a rotating shaft (24) is rotatably connected to the middle part of the intermittent plate (23), a floating sphere (25) is fixedly connected to the side of the rotating shaft (24) close to the partition (22), a telescopic sleeve (26) is fixedly connected to the side of the rotating shaft (24) away from the floating sphere (25), a limiting body (27) is arranged below one end of the telescopic sleeve (26) close to the rotating shaft (24), the limiting body (27) is fixedly connected to the surface of the intermittent plate (23), and a spherical rotating rod (28) is rotatably connected to the end of the telescopic sleeve (26) away from the rotating shaft (24).

3. The active heat dissipation device for a large flow centrifugal fan according to claim 2, characterized in that: The automatic replenishing feedback mechanism (2) further comprises a spherical rotating rod (28); a U-shaped frame (29) is fixedly connected to a side of the intermittent plate (23) away from the partition (22); the spherical rotating rod (28) is slidably connected in the U-shaped frame (29); an end of the spherical rotating rod (28) away from the telescopic sleeve (26) is fixedly connected to a U-shaped auxiliary body (210); an end of the U-shaped auxiliary body (210) away from the spherical rotating rod (28) is slidably connected to a positioning rod (211); the positioning rod (211) is fixedly connected in the U-shaped frame (29); an auxiliary spring body (212) is sleeved on the upper end of the positioning rod (211); and the auxiliary spring body (212) is sleeved on the upper end of the positioning rod (211). 12) two ends are respectively fixedly connected to the inner surface of the U-shaped frame (29) and the upper surface of the U-shaped auxiliary body (210); one end of the spherical rotating rod (28) away from the telescopic sleeve (26) is internally threadedly connected to a threaded rod (213); the threaded rod (213) extends upwardly through the U-shaped frame (29) and is fixedly connected to a gear set (214); a supply barrel (215) is rotatably connected above one end of the gear set (214) away from the threaded rod (213); one end of the supply barrel (215) away from the gear set (214) is fixedly connected to the top of the liquid storage tank (21); and a guide tube (216) is fixedly connected to the eccentric portion of the gear set (214).

4. The active heat dissipation device for a large flow centrifugal fan according to claim 1, characterized in that: The auxiliary feeding mechanism (3) comprises a radial groove body (31), the radial groove body (31) being fixedly connected to an eccentric portion of a surface of the feeding barrel (215) close to the gear set (214), an A cross (32) being fixedly connected to the upper end of the radial groove body (31), an A spring (33) being fixedly connected to the center of a surface of the A cross (32) close to the gear set (214), an end of the A spring (33) away from the A cross (32) being fixedly connected to a blocking block (34), an upper port diameter of the radial groove body (31) being larger than a lower port diameter, a through hole being provided at an eccentric portion of the gear set (214), a B cross (35) being fixedly connected to the bottom of the through hole of the gear set (214), a B spring (36) being fixedly connected to the center of the upper surface of the B cross (35), and an end of the B spring (36) away from the B cross (35) being fixedly connected to a trigger block (37).

5. The active heat dissipation device for a large flow centrifugal fan according to claim 2, characterized in that: Cooling liquid is provided below the partition (22); the floating sphere (25) is composed of a connecting rod and a sphere; and the telescopic sleeve (26) is composed of a sleeve, a built-in spring, and a telescopic body.

6. The active heat dissipation device for a large flow centrifugal fan according to claim 3, characterized in that: The spherical rotating rod (28) is composed of a rotating sphere and an internal threaded column, the gear set (214) is composed of a small gear and a large gear, and the conduit (216) extends through the partition (22) and is connected to a coolant arranged below the partition (22).

7. The active heat dissipation device for a large flow centrifugal fan according to claim 4, characterized in that: The lower surface of the blocking block (34) is an arc-shaped smooth surface, the through hole of the gear set (214) is in communication with the conduit (216), and the upper surface of the trigger block (37) is an arc-shaped smooth surface.

Images