Novel efficient mixed flow cooling fan

Abstract

The invention discloses a novel efficient mixed-flow heat dissipation fan in the technical field of mixed-flow heat dissipation fans, in the working process of a mixed-flow heat dissipation air pipe machine, a supporting block, a limiting plate, a damping spring and a fixing block are used for damping a driving motor and a mounting plate in the working process, collision between the mounting plate and the supporting block is avoided, and the service life of the fan is prolonged. And then, when the mixed flow fan is overhauled, a fixing plate is dismounted, after dismounting, a mounting plate and the driving motor can be taken out from the position between a limiting plate and a supporting block, the mixed flow fan blades and the driving motor can be conveniently and rapidly overhauled, and when flow deflectors are cleaned, the flow deflectors can be conveniently cleaned, so that the noise in the working process of the driving motor is reduced. Dust attached to the surfaces of the flow deflectors is cleaned through a pull rod and a scraping block, a worker does not need to enter a mounting cylinder for cleaning, contact between the worker and the dust is reduced, and when the mixed flow fan blades are cleaned, the pull rod and the scraping block are used for pushing a telescopic plate and a cleaning brush to clean the mixed flow fan blades.

Description

Technical Field

[0001] The invention relates to the technical field of mixed-flow heat dissipation fans, and in particular to a novel high-efficiency mixed-flow heat dissipation fan. Background Art

[0002] Fans are generally classified according to the airflow direction of the impeller. The airflow direction of the axial flow fan is basically parallel to the axis of the fan. The airflow of the duct centrifugal fan enters from the axial direction of the impeller and is discharged from the radial direction of the impeller after changing direction. The mixed flow fan is a product between the axial flow fan and the centrifugal fan. It combines the best characteristics of the axial flow fan and the centrifugal fan, with high conveying efficiency and a wide pressure range. The air of the mixed flow fan enters the impeller axially and is deflected at an inclined angle through the impeller blades, so that the gas flowing out of the impeller has both axial and radial components.

[0003] In the process of working and cooling, the mixed flow cooling fan in the prior art has poor dust and sand treatment effect. Long-term operation is likely to affect the performance and service life of the mixed flow fan. In addition, due to the internal design characteristics of the mixed flow fan, it is more difficult to maintain and clean the inside of the mixed flow fan. The dust accumulated inside the mixed flow fan cannot be cleaned in time, which will affect the heat dissipation of the fan and easily cause the motor temperature to be too high, thereby causing a safety accident. Summary of the invention

[0004] The object of the present invention is to provide a novel high-efficiency mixed-flow heat dissipation fan to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a novel high-efficiency mixed flow heat dissipation fan, comprising a mounting cylinder, a driving motor is arranged inside the mounting cylinder, a mounting disk is fixedly installed at the end of the output shaft of the driving motor, a plurality of mixed flow blades are fixedly connected to the surface of the mounting disk, a trumpet-shaped collector ring is fixedly installed on the surface of one end of the mounting cylinder close to the mixed flow blade, a plurality of arc-shaped guide vanes are fixedly connected to the inner wall surface of the mounting cylinder, a plurality of arc-shaped heat dissipation fins are fixedly connected to the surface of the driving motor, a supporting mechanism is arranged inside the mounting cylinder, the supporting mechanism is used to support the driving motor, a mounting mechanism is arranged on one side of the supporting mechanism, the mounting mechanism is used to limit the installation of the driving motor, and the mounting mechanism can be disassembled to facilitate the subsequent disassembly and maintenance of the driving motor, a shock absorbing mechanism is arranged on the surface of the supporting mechanism, the shock absorbing mechanism is used to reduce the vibration generated by the driving motor during the operation of the driving motor, a scraping mechanism is arranged inside the mounting cylinder, the cleaning mechanism is used to manually and quickly clean the surface of the guide vane, a cleaning mechanism is arranged on one side of the scraping mechanism, and the cleaning mechanism is used to clean the leeward side of the mixed flow blade.

[0006] As a further solution of the present invention, the support mechanism includes two support blocks, the two support blocks are fixedly connected to the inside of the mounting tube, a mounting plate is provided at the upper ends of the two support blocks, and the drive motor is mounted on the surface of the mounting plate.

[0007] As a further solution of the present invention, the mounting mechanism includes two limit plates, both of which are fixedly connected to the inner wall surface of the mounting tube, both of which are located above the support block, and the mounting plate is located between the support block and the limit plates. Fixed plates are commonly installed on the left and right side surfaces of the support block and the limit plates, and the two fixed plates limit the mounting plate.

[0008] As a further solution of the present invention, the shock absorbing mechanism includes a plurality of shock absorbing springs, the plurality of shock absorbing springs are respectively fixedly connected to the surfaces of the two support blocks, and the mounting plate is located above the shock absorbing springs.

[0009] As a further solution of the present invention, the scraping mechanism includes a plurality of storage boxes, and the plurality of storage boxes are fixedly connected to the surface of the mounting tube, and a plurality of connecting openings are provided on the surface of the mounting tube corresponding to the positions of the storage boxes. The storage box is located at the end position of the guide plate, and the side of the storage box close to the guide plate is an inclined surface, and a scraping block is slidably connected inside the storage box, and a scraping opening is provided on the surface of the scraping block corresponding to the position of the guide plate, and a pulling rod is fixedly connected to the surface of the scraping block, and the pulling rod extends to the end position of the mounting tube, and an installation groove is provided on the inner wall surface of the mounting tube corresponding to the position of the pulling rod.

[0010] As a further solution of the present invention, the cleaning mechanism includes an L-shaped telescopic plate, one end of the telescopic plate is fixed inside the storage box, the telescopic plate is in contact with the scraping block on a side close to the scraping block, a cleaning brush is fixedly connected to the surface of the telescopic plate, a baffle is fixedly connected to the inner wall surface of the storage box, the baffle is located on the side of the telescopic plate away from the scraping block, a gap is left between the baffle and the side close to the storage box, the cleaning brush extends over the baffle into the gap, a reset spring is connected between the telescopic plate and the baffle, and a soft sealing sheet is fixedly connected to the bottom surface of the storage box, the sealing sheet is used to seal the gap between the baffle and the storage box when airflow passes through the mounting cylinder.

[0011] As a further solution of the present invention, the upper ends of the plurality of shock-absorbing springs are commonly fixedly connected with a connecting plate, and the connecting plate is slidably mounted on the bottom of the mounting plate.

[0012] As a further solution of the present invention, a buffer pad is fixedly connected to the bottom of the limiting plate on one side surface close to the supporting block.

[0013] As a further solution of the present invention, a plurality of inclined support plates are fixedly connected to the surface of the support block, and soft buffer blocks are fixedly connected to the ends of the support plates.

[0014] As a further solution of the present invention, a recovery groove is provided on the surface of the scraper block.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The invention uses a support block, a limit plate, a shock-absorbing spring and a fixed block to reduce the vibration of the driving motor and the mounting plate during the working process of the mixed flow heat dissipation duct machine, thereby avoiding collision between the mounting plate and the support block, thereby reducing the noise of the driving motor during the working process. Subsequently, when the mixed flow fan needs to be repaired after a long period of work, the fixed plate is removed. After the removal, the mounting plate and the driving motor can be taken out from between the limit plate and the support block, which is convenient for rapid maintenance of the mixed flow fan blades and the driving motor, reduces the disassembly time, and improves the maintenance efficiency. When cleaning the dust attached to the surface of the wafer, the pull rod and the scraper block are used to clean the dust attached to the surface of the guide vane. There is no need for manual entry into the installation tube for cleaning, which reduces the contact between manual labor and dust and avoids long-term manual contact with dust which may cause harm to health. When it is necessary to clean the leeward side of the mixed flow fan blade, the pull rod and the scraper block are used to push the telescopic plate and the cleaning brush to clean the mixed flow fan blade. The dust on the leeward side of the mixed flow fan blade can be cleaned without removing the installation plate, which reduces additional operations during cleaning and improves cleaning efficiency.

[0016] The present invention, during the inspection and repair of the drive motor, after the fixing plate is removed, the mounting plate and the drive motor need to be taken out, and the connecting plate can be directly slid away from the mounting plate, thereby reducing the influence of the shock-absorbing spring on the movement of the mounting plate, and avoiding the end of the shock-absorbing spring being easily caught by the mounting plate and pulled to one side when the mounting plate is in direct contact with the shock-absorbing spring and the mounting plate is taken out. During the multiple removal processes of the mounting plate, multiple shock-absorbing springs are prone to different deformations, which leads to changes in the subsequent shock-absorbing effects at different positions of the mounting plate, thereby affecting the normal operation of the drive motor.

[0017] When the driving motor of the present invention is working, the driving motor will drive the mounting plate to vibrate together. When the movement amplitude of the mounting plate is large, the buffer pads on the surface of the limit plate and the support block can buffer the mounting plate, reduce the impact on the mounting plate, and avoid the mounting plate from directly contacting the limit plate and the support block, thereby generating noise and easily causing damage to the mounting plate, thus affecting the normal operation of the driving motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention after being cut apart; Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle; Figure 4 It is a structural schematic diagram of the positional relationship among the mounting plate, the support block, the limiting plate and the fixing plate in the present invention; Figure 5 for Figure 4 Schematic diagram of the structure at B in the middle; Figure 6 It is a structural schematic diagram of the positional relationship among the mounting plate, the support plate and the support block in the present invention (the fixing plate is hidden); Figure 7 for Figure 6 Schematic diagram of the structure at C in the middle; Figure 8 for Figure 6 Schematic diagram of the structure at D in the middle; Fig. 9 for Figure 6 Schematic diagram of the structure at E in the middle; Fig.10 It is a schematic diagram of the structure of the installation tube and the storage box after being cut open in the present invention; Fig.11 for Fig.10 Schematic diagram of the structure at F in the middle; Fig.12 It is a structural schematic diagram of the connection relationship between the scraping block and the pulling rod in the present invention.

[0019] In the accompanying drawings: 1-mounting cylinder, 2-driving motor, 3-mounting plate, 4-mixed flow fan blades, 5-collecting ring, 6-guide vanes, 7-heat dissipation fins, 8-support blocks, 9-mounting plates, 10-limiting plates, 11-fixing plates, 12-shock absorbing springs, 13-storage boxes, 14-connecting ports, 15-scraping blocks, 16-scraping ports, 17-pull rods, 18-mounting slots, 19-telescopic plates, 20-cleaning brushes, 21-baffles, 22-reset springs, 23-sealing plates, 24-connecting plates, 25-buffer pads, 26-support plates, 27-buffer blocks, 28-recovery slots. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 12The present invention provides a technical solution: a new type of high-efficiency mixed flow heat dissipation fan, including a mounting cylinder 1, a driving motor 2 is arranged inside the mounting cylinder 1, a mounting plate 3 is fixedly installed at the end of the output shaft of the driving motor 2, a plurality of mixed flow blades 4 are fixedly connected to the surface of the mounting plate 3, a trumpet-shaped collecting ring 5 is fixedly installed on the surface of one end of the mounting cylinder 1 close to the mixed flow blade 4, a plurality of arc-shaped guide vanes 6 are fixedly connected to the inner wall surface of the mounting cylinder 1, a plurality of arc-shaped heat dissipation fins 7 are fixedly connected to the surface of the driving motor 2, a supporting mechanism is arranged inside the mounting cylinder 1, the supporting mechanism is used to support the driving motor 2, a mounting mechanism is arranged on one side of the supporting mechanism, the mounting mechanism is used to limit the installation of the driving motor 2, and the mounting mechanism can be disassembled to facilitate the subsequent disassembly and maintenance of the driving motor 2, a shock absorbing mechanism is arranged on the surface of the supporting mechanism, the shock absorbing mechanism is used to reduce the vibration generated by the driving motor 2 during the operation of the driving motor 2, a scraping mechanism is arranged inside the mounting cylinder 1, the cleaning mechanism is used to manually and quickly clean the surface of the guide vane 6, a cleaning mechanism is arranged on one side of the scraping mechanism, and the cleaning mechanism is used to clean the leeward side of the mixed flow blade 4; The supporting mechanism includes two supporting blocks 8, which are fixedly connected to the inside of the mounting tube 1. The upper ends of the two supporting blocks 8 are provided with mounting plates 9, and the driving motor 2 is mounted on the surface of the mounting plates 9; The mounting mechanism includes two limit plates 10, both of which are fixedly connected to the inner wall surface of the mounting tube 1, and both of which are located above the support block 8. The mounting plate 9 is located between the support block 8 and the limit plates 10. The left and right surfaces of the support block 8 and the limit plates 10 are both installed with fixing plates 11, and the two fixing plates 11 limit the mounting plate 9. The shock absorbing mechanism includes a plurality of shock absorbing springs 12, which are respectively fixedly connected to the surfaces of the two support blocks 8, and the mounting plate 9 is located above the shock absorbing springs 12; The scraping mechanism includes a plurality of storage boxes 13, which are fixedly connected to the surface of the mounting tube 1, and a plurality of communication ports 14 are provided on the surface of the mounting tube 1 at positions corresponding to the storage boxes 13. The storage box 13 is located at the end of the guide plate 6, and the side of the storage box 13 close to the guide plate 6 is an inclined surface. A scraping block 15 is slidably connected in the storage box 13, and a scraping port 16 is provided on the surface of the scraping block 15 at a position corresponding to the guide plate 6. A pulling rod 17 is fixedly connected to the surface of the scraping block 15, and the pulling rod 17 extends to the end of the mounting tube 1, and a mounting groove 18 is provided on the inner wall surface of the mounting tube 1 at a position corresponding to the pulling rod 17. The cleaning mechanism includes an L-shaped telescopic plate 19, one end of which is fixed inside the storage box 13, and the side of the telescopic plate 19 close to the scraping block 15 is in contact with the scraping block 15, a cleaning brush 20 is fixedly connected to the surface of the telescopic plate 19, and a baffle 21 is fixedly connected to the inner wall surface of the storage box 13, the baffle 21 is located on the side of the telescopic plate 19 away from the scraping block 15, and a gap is left between the baffle 21 and the side close to the storage box 13, the cleaning brush 20 extends over the baffle 21 into the gap, a return spring 22 is connected between the telescopic plate 19 and the baffle 21, and a soft sealing sheet 23 is fixedly connected to the bottom surface of the storage box 13, and the sealing sheet 23 is used to seal the gap between the baffle 21 and the storage box 13 when airflow passes through the installation tube 1; During the operation of the mixed-flow heat dissipation duct machine, the driving motor 2 will drive the mounting plate 3 and the mixed-flow fan blades 4 to rotate through the output shaft, and the airflow will enter the mounting tube 1 through the collecting ring 5, and then move to the guide plate 6 after passing through the mixed-flow fan blades 4, and move along the guide plate 6. The heat dissipation fins 7 can better discharge the heat generated by the driving motor 2 and be taken away by the airflow. When the driving motor 2 is working, the driving motor 2 will vibrate due to the work and drive the mounting plate 9 to vibrate together. The shock-absorbing spring 12 can reduce the vibration of the driving motor 2 and the mounting plate 9, and the shock-absorbing spring 12 can reduce the vibration of the driving motor 2 and the mounting plate 9 to avoid the collision between the mounting plate 9 and the support block 8, thereby reducing the noise during the operation of the driving motor 2 and limiting The positioning plate 10 can limit the movement of the mounting plate 9. When the mixed flow fan needs to be repaired after a long period of work, it is necessary to first turn off the drive motor 2, then remove and take out the mounting disk 3 and the mixed flow blades 4, and then remove the fixing plate 11. After removal, the mounting plate 9 and the drive motor 2 can be taken out from between the limiting plate 10 and the support block 8, which is convenient for quick maintenance of the mixed flow blades 4 and the drive motor 2, reduces the disassembly time, and improves the maintenance efficiency. When the dust attached to the surface of the guide vane 6 needs to be cleaned, first remove the pull rod 17 from the mounting groove 18, and then slowly pull the scraper block 15 through the pull rod 17. The scraper block 15 will gradually move along the inner wall of the storage box 13 into the mounting tube 1, and the guide vane 6 will move to the scraper. The scraper block 15 is placed in the opening 16, and then in the process of the scraper block 15 moving along the guide plate 6, the scraper block 15 will clean the dust attached to the surface of the guide plate 6, and there is no need for manual entry into the installation tube 1 for cleaning, which reduces the contact between manual labor and dust and avoids the harm to health caused by long-term manual contact with dust. After the cleaning is completed, the scraper block 15 is pushed back into the storage box 13 using the pull rod 17, and the pull rod 17 is moved back into the installation groove 18. The installation groove 18 will restrict the pull rod 17 and will not affect the normal use of the mixed flow cooling fan. Then, when it is necessary to clean the leeward side of the mixed flow fan blade 4, the pull rod 17 is taken out of the installation groove 18, and then the pull rod 17 and the scraper block 15 are pushed into the installation tube 1, and the scraper block 15 will The telescopic plate 19 is acted on and the telescopic plate 19 is retracted. The cleaning brush 20 is pushed by the telescopic plate 19 to move along the gap between the baffle plate 21 and the storage box 13 to the surface position of the mixed flow fan blade 4. Then, the mounting plate 3 and the mixed flow fan blade 4 are manually rotated and the mixed flow fan blade 4 rotates to contact with the hanging cleaning brush 20. The dust attached to the surface of the mixed flow fan blade 4 will be removed under the action of the cleaning brush 20, which is beneficial for cleaning the dust on the leeward side of the mixed flow fan blade 4 without removing the mounting plate 3, reducing additional operations during cleaning and improving cleaning efficiency. Then, after cleaning, the pulling rod 17 and the scraping block 15 are reset, and the cleaning brush 20 and the telescopic plate 19 are restored to their original positions under the action of the reset spring 22. Then, when the reflux cooling fan continues to work,The sealing sheet 23 will seal the gap between the baffle 21 and the storage box 13 under the action of the airflow, so that the fan can work normally.

[0021] During the maintenance of the drive motor 2, when the mounting plate 9 is taken out from between the limiter and the support block 8, the shock absorbing spring 12 will affect the movement of the installation. As a further solution of the present invention, the upper ends of the plurality of shock absorbing springs 12 are fixedly connected to a connecting plate 24, and the connecting plate 24 is slidably mounted on the bottom of the mounting plate 9; During the inspection and maintenance of the drive motor 2, after the fixing plate 11 is removed, the mounting plate 9 and the drive motor 2 need to be taken out, and the connecting plate 24 can directly slide away from the mounting plate 9, thereby reducing the influence of the movement of the mounting plate 9 on the shock-absorbing spring 12, and avoiding that when the mounting plate 9 is in direct contact with the shock-absorbing spring 12 and the mounting plate 9 is taken out, the end of the shock-absorbing spring 12 is easily caught by the mounting plate 9 and pulled to one side. During the multiple removal processes of the mounting plate 9, multiple shock-absorbing springs 12 are prone to different deformations, which leads to changes in the subsequent shock-absorbing effects at different positions of the mounting plate 9, affecting the normal operation of the drive motor 2.

[0022] When the mixed flow cooling fan is working, when the vibration generated by the driving motor 2 is large, the mounting plate 9 will collide with the limiting plate 10 and the supporting block 8 to generate noise. As a further solution of the present invention, a buffer pad 25 is fixedly connected to the bottom of the limiting plate 10 and the side surface close to the supporting block 8; During the operation of the driving motor 2, the driving motor 2 will drive the mounting plate 9 to vibrate. When the movement amplitude of the mounting plate 9 is large, the buffer pad 25 on the surface of the limit plate 10 and the support block 8 can buffer the mounting plate 9, reduce the impact on the mounting plate 9, and prevent the mounting plate 9 from directly contacting the limit plate 10 and the support block 8, thereby generating noise and easily causing damage to the mounting plate 9, affecting the normal operation of the driving motor 2.

[0023] During the operation of the drive motor 2, the mounting plate 9 is easily deformed by the drive motor 2. As a further solution of the present invention, a plurality of inclined support plates 26 are fixedly connected to the surface of the support block 8, and a soft buffer block 27 is fixedly connected to the end of the support plate 26. During the operation of the drive motor 2, the inclined support plate 26 can support the middle position of the mounting plate 9 to prevent the middle position of the mounting plate 9 from causing large deformation and affecting the normal operation of the drive motor 2. The buffer block 27 can adapt to the movement of the mounting plate 9 within a certain range.

[0024] In the process of cleaning the guide vane 6, the dust cleaned by the scraper block 15 will fall back into the mounting tube 1. As a further solution of the present invention, a recovery groove 28 is provided on the surface of the scraper block 15; During the cleaning process of the guide plate 6, the pulling rod 17 will cause the scraping block 15 to move, and the scraping block 15 will scrape the dust on the surface of the guide plate 6. After scraping, the dust will fall into the recovery groove 28, preventing the scraped dust from falling into the installation tube 1, increasing the difficulty of cleaning.

Claims

1. A novel high-efficiency mixed-flow heat dissipation fan, comprising a mounting cylinder (1), characterized in that: A drive motor (2) is arranged inside the mounting tube (1); a mounting plate (3) is fixedly mounted on the end of the output shaft of the drive motor (2); a plurality of mixed flow blades (4) are fixedly connected to the surface of the mounting plate (3); a trumpet-shaped collecting ring (5) is fixedly mounted on the surface of one end of the mounting tube (1) close to the mixed flow blades (4); a plurality of arc-shaped guide vanes (6) are fixedly connected to the inner wall surface of the mounting tube (1); a plurality of arc-shaped heat dissipation fins (7) are fixedly connected to the surface of the drive motor (2); a support mechanism is arranged inside the mounting tube (1); the support mechanism is used to support the drive motor (2); A mounting mechanism is provided on one side of the support mechanism, the mounting mechanism is used for limiting the installation of the drive motor (2), and the mounting mechanism can be disassembled to facilitate the subsequent disassembly and maintenance of the drive motor (2); a shock absorbing mechanism is provided on the surface of the support mechanism, the shock absorbing mechanism is used to reduce the vibration generated by the drive motor (2) during the operation of the drive motor (2); a scraping mechanism is provided inside the mounting tube (1), the cleaning mechanism is used to manually and conveniently and quickly clean the surface of the guide vane (6); a cleaning mechanism is provided on one side of the scraping mechanism, the cleaning mechanism is used to clean the leeward side of the mixed flow fan blade (4).

2. A new type of high-efficiency mixed-flow heat dissipation fan according to claim 1, characterized in that: The support mechanism comprises two support blocks (8), the two support blocks (8) are fixedly connected inside the mounting tube (1), a mounting plate (9) is provided at the upper ends of the two support blocks (8), and the drive motor (2) is mounted on the surface of the mounting plate (9).

3. A new type of high-efficiency mixed-flow heat dissipation fan according to claim 2, characterized in that: The mounting mechanism comprises two limit plates (10), the two limit plates (10) are fixedly connected to the inner wall surface of the mounting tube (1), the two limit plates (10) are located above the support block (8), the mounting plate (9) is located between the support block (8) and the limit plates (10), and the left and right side surfaces of the support block (8) and the limit plates (10) are both commonly mounted with fixing plates (11), and the two fixing plates (11) limit the mounting plate (9).

4. A novel high-efficiency mixed-flow heat dissipation fan according to claim 3, characterized in that: The shock absorbing mechanism comprises a plurality of shock absorbing springs (12), wherein the plurality of shock absorbing springs (12) are respectively fixedly connected to the surfaces of two support blocks (8), and the mounting plate (9) is located above the shock absorbing springs (12).

5. A novel high-efficiency mixed-flow heat dissipation fan according to claim 1, characterized in that: The scraping mechanism comprises a plurality of storage boxes (13), wherein the plurality of storage boxes (13) are fixedly connected to the surface of the mounting tube (1), and a plurality of connecting openings (14) are provided on the surface of the mounting tube (1) at positions corresponding to the storage boxes (13). The storage box (13) is located at an end position of the guide plate (6), and a side of the storage box (13) close to the guide plate (6) is an inclined surface. A scraping block (15) is slidably connected inside the storage box (13), and a scraping opening (16) is provided on the surface of the scraping block (15) at a position corresponding to the guide plate (6). A pulling rod (17) is fixedly connected to the surface of the scraping block (15), and the pulling rod (17) extends to the end position of the mounting tube (1), and a mounting groove (18) is provided on the inner wall surface of the mounting tube (1) at a position corresponding to the pulling rod (17).

6. A novel high-efficiency mixed-flow heat dissipation fan according to claim 5, characterized in that: The cleaning mechanism comprises an L-shaped telescopic plate (19), one end of which is fixed inside the storage box (13), the side of the telescopic plate (19) close to the scraping block (15) is in contact with the scraping block (15), a cleaning brush (20) is fixedly connected to the surface of the telescopic plate (19), a baffle (21) is fixedly connected to the inner wall surface of the storage box (13), the baffle (21) is located on the side of the telescopic plate (19) away from the scraping block (15), a gap is left between the baffle (21) and the side close to the storage box (13), the cleaning brush (20) extends over the baffle (21) into the gap, a return spring (22) is connected between the telescopic plate (19) and the baffle (21), and a soft sealing sheet (23) is fixedly connected to the bottom surface of the storage box (13), the sealing sheet (23) is used to seal the gap between the baffle (21) and the storage box (13) when air flows through the installation tube (1).

7. A novel high-efficiency mixed-flow heat dissipation fan according to claim 4, characterized in that: The upper ends of the plurality of shock absorbing springs (12) are commonly fixedly connected to a connecting plate (24), and the connecting plate (24) is slidably mounted on the bottom of the mounting plate (9).

8. A novel high-efficiency mixed-flow heat dissipation fan according to claim 4, characterized in that: A buffer pad (25) is fixedly connected to the bottom of the limiting plate (10) and the surface of one side close to the supporting block (8).

9. A novel high-efficiency mixed-flow heat dissipation fan according to claim 2, characterized in that: A plurality of inclined support plates (26) are fixedly connected to the surface of the support block (8), and a soft buffer block (27) is fixedly connected to the end of the support plate (26).

10. The novel high-efficiency mixed-flow heat dissipation fan according to claim 5, characterized in that: A recovery groove (28) is provided on the surface of the scraping block (15).

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