A vibration isolation fan

Abstract

The utility model discloses a kind of vibration isolation fans, including fan blade, frame, drive assembly and shock pad, the middle part of frame has installation part, installation part has annular outer wall, annular inner wall and multiple clamping hooks, annular outer wall and annular inner wall are formed with annular installation groove between, multiple clamping hooks are located in annular installation groove side. Drive assembly includes motor and motor base, motor is located on motor base, and is connected with fan blade, for driving the rotation of the fan blade, motor base is connected with multiple clamping hooks. Shock pad is sleeved on motor base, motor base presses shock pad on the groove bottom of annular installation groove, the outside wall of shock pad and annular outer wall contact, the inside wall of shock pad and annular inner wall contact. By setting shock pad, the vibration amplitude of fan is weakened, and the stability of fan is improved.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a vibration-isolated fan. Background Technology

[0002] Cooling fans are indispensable heat dissipation components in electronic and mechanical systems. Their core function is to actively guide airflow to accelerate heat exchange and prevent equipment malfunctions caused by heat buildup. In various high-power scenarios, such as data center server clusters, new energy vehicle power battery packs, or industrial automation controllers, internal semiconductor components, circuits, or mechanical parts release a large amount of heat during continuous operation. If this heat cannot be dissipated in time, it may lead to chip performance degradation and accelerated component aging.

[0003] The prior art can be referenced in Chinese Patent No. CN 222823413 U, which discloses an adjustable cooling fan, including a fan outer frame, a fan inner frame, a drive device, and fan blades. The inner side of the fan outer frame is provided with several adjustable plates at intervals, and the outer side of the fan inner frame is provided with several positioning protrusions, each of which engages with a specific adjustable plate. A mounting bracket is provided in the fan inner frame, and the drive device is fixedly mounted on the mounting bracket. The fan blades are fixedly mounted on the rotating end of the drive device. While this fan, by engaging the adjustable plates with the positioning protrusions, allows for adjustment of the fan blade tilt angle for better heat dissipation, it also generates vibration during operation, thus affecting the fan's stability. Summary of the Invention

[0004] Therefore, a vibration-isolated fan is needed to solve the problem of vibration generated by ordinary fans during operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A vibration-damping fan, comprising: Fan blades; A frame, the frame having a mounting part in the middle, the mounting part having an annular outer wall, an annular inner wall and a plurality of hooks, an annular mounting groove being formed between the annular outer wall and the annular inner wall, and the plurality of hooks being located next to the annular mounting groove; A drive assembly, comprising a motor and a motor mount, wherein the motor is mounted on the motor mount and connected to the fan blades for driving the fan blades to rotate, and the motor mount engages with a plurality of the latches; and A shock-absorbing pad is fitted onto the motor mount, and the motor mount presses the shock-absorbing pad onto the bottom of the annular mounting groove. The outer side wall of the shock-absorbing pad contacts the outer wall of the annular groove, and the inner side wall of the shock-absorbing pad contacts the inner wall of the annular groove.

[0006] Preferably, the shock-absorbing pad is annular, with an annular groove on the side of the shock-absorbing pad opposite the motor base, and an annular protrusion on the motor base. The shock-absorbing pad is fitted onto the annular protrusion of the motor base through the annular groove.

[0007] Preferably, the shock-absorbing pad is a rubber pad.

[0008] Preferably, the bottom of the annular mounting groove is provided with a through hole that extends through both sides of the frame.

[0009] Preferably, the annular outer wall has multiple breaks, and multiple hooks are disposed in the multiple breaks. Each hook includes a support arm and a hook portion. One end of the support arm is connected to the bottom of the break, and the other end of the support arm is connected to the hook portion. The annular outer wall surrounds the motor seat to limit the motor seat.

[0010] Preferably, the break exposes the shock-absorbing pad.

[0011] Preferably, the frame further includes an outer frame and a connector. The outer frame has a hollow area for accommodating the fan blades. The sidewall of the hollow area is connected to the mounting part through the connector. The mounting part is centrally located in the hollow area.

[0012] Preferably, the fan blade includes a hub and a shaft. The hub has a groove in the middle. One end of the shaft is connected to the center of the groove. The motor includes a magnetic ring sleeve, a magnet, and a stator. The magnetic ring sleeve is fitted in the groove. The magnet is fitted in the magnetic ring sleeve. The stator is located in the magnet. The motor base has a connecting sleeve in the middle. The connecting sleeve passes through the stator and is rotatably connected to the shaft. The stator is provided on the outer wall of the connecting sleeve.

[0013] Preferably, the drive assembly further includes a circuit board, the stator has an annular cylindrical wall, and the circuit board is sleeved and soldered onto the stator.

[0014] Preferably, the fan further includes a plurality of LED beads, which are arranged in a ring array on the circuit board.

[0015] The above technical solution has the following beneficial effects: When the motor drives the fan blades to rotate, the fan blades will deflect to all sides and collide with the frame due to centrifugal force, thereby generating vibration and reducing the structural stability of the fan. By setting a shock-absorbing pad between the frame and the motor base, the vibration intensity can be effectively reduced, the stability of the fan can be improved, and the service life of the fan can be increased. Attached Figure Description

[0016] Figure 1 This is an exploded view of the frame, the shock-absorbing pad, and the motor mount described in this embodiment; Figure 2 This is a schematic diagram of the frame structure described in this embodiment; Figure 3 This is a partial enlarged view of the frame described in this embodiment; Figure 4 This is a schematic diagram of the motor mount described in this embodiment; Figure 5 This is a schematic diagram of the structure of the shock-absorbing pad described in this embodiment; Figure 6 This is a schematic diagram showing the distribution of the LED beads on the circuit board according to this embodiment; Figure 7 This is an exploded view of the fan blades and the drive assembly described in this embodiment; Figure 8 This is a schematic diagram of the structure of the shock-absorbing pad installed in the fan according to this embodiment; Figure 9 for Figure 8 Enlarged view of part A in the middle.

[0017] Explanation of reference numerals in the attached figures: 1. Fan blade; 11. Blade; 12. Shaft; 13. Groove; 14. Hub; 2. Drive assembly; 21. Motor mount; 211. Connecting sleeve; 212. Annular protrusion; 22. Motor; 221. Bushing; 222. Magnetic ring sleeve; 223. Magnet; 224. Stator; 225. Annular cylindrical wall; 3. Circuit board; 31. LED bead; 32. Annular bayonet; 4. Shock-absorbing pad; 41. Annular groove; 5. Frame; 51. Outer frame; 511. Hollow area; 52. Connector; 53. Mounting part; 531. Annular outer wall; 532. Annular inner wall; 533. Annular mounting groove; 534. Through hole; 535. Break; 6. Hook; 61. Support arm; 62. Hook part. Detailed Implementation

[0018] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0019] Please see Figures 1 to 9 This embodiment provides a vibration-damping fan, the fan comprising: Fan blade 1; The frame 5 has a mounting part 53 in the middle. The mounting part 53 has an annular outer wall 531, an annular inner wall 532 and a plurality of hooks 6. An annular mounting groove 533 is formed between the annular outer wall 531 and the annular inner wall 532. The plurality of hooks 6 are located next to the annular mounting groove 533. Drive assembly 2, comprising a motor 22 and a motor base 21, wherein the motor 22 is mounted on the motor base 21 and connected to the fan blade 1 for driving the fan blade 1 to rotate, and the motor base 21 is engaged with a plurality of the latches 6; and A shock-absorbing pad 4 is fitted onto the motor seat 21, and the motor seat 21 presses the shock-absorbing pad 4 onto the bottom of the annular mounting groove 533. The outer side wall of the shock-absorbing pad 4 contacts the outer annular wall 531, and the inner side wall of the shock-absorbing pad 4 contacts the inner annular wall 532. The structure is as follows. Figure 7 and Figure 9 As shown.

[0020] Optionally, four hooks 6 are arranged symmetrically around the annular mounting groove 533. The hook portion 62 of the hook 6 is elastic. The motor seat 21 can be pressed towards the hook 6 to achieve engagement with the hook 6. The support arm 61 of the hook 6 can limit the motor seat 21, so that the frame 5 can better fix the motor seat 21. The motor 22 is located in the groove 13, and the rotating shaft 12 passes through the center of the stator 224. The connecting sleeve 211 on the motor seat 21 is fitted onto the rotating shaft 12. This fitting makes the fan structure more compact and easier to disassemble and assemble.

[0021] Motor 22 drives fan blade 1 to rotate. Due to centrifugal force, fan blade 1 will shift to all sides and collide with frame 5, thereby generating vibration and reducing the structural stability of the fan. By setting shock-absorbing pads 4 between frame 5 and motor base 21, the vibration intensity can be effectively reduced, the stability of the fan can be improved, and the service life of the fan can be increased.

[0022] Please see Figure 3 , Figure 4 , Figure 5 and Figure 9 In this embodiment, the shock-absorbing pad 4 is annular, with an annular groove 41 on the side of the shock-absorbing pad 4 facing the motor base 21. The motor base 21 has an annular protrusion 212, and the shock-absorbing pad 4 is fitted onto the annular protrusion 212 of the motor base 21 through the annular groove 41. This fitting method ensures a tight fit between the shock-absorbing pad 4 and the motor base 21, effectively reducing vibration. In some embodiments, the annular groove 41 on the shock-absorbing pad 4 and the annular protrusion 212 on the motor base 21 can be interchanged; that is, the annular protrusion 212 is provided on the shock-absorbing pad 4, and the annular groove 41 is provided on the motor base 21.

[0023] Please see Figure 5 In this embodiment, the shock-absorbing pad 4 is a rubber pad. Rubber pads are low in manufacturing cost, readily available, and have a highly efficient shock-absorbing effect, effectively absorbing the vibration generated by the fan blade 1.

[0024] Please see Figure 3 In this embodiment, the bottom of the annular mounting groove 533 is provided with through holes 534 penetrating both sides of the frame 5. When the shock-absorbing pad 4 absorbs the vibration generated by the fan blade 1, it will accumulate heat. If the heat cannot be dissipated in time, it will affect the shock-absorbing effect of the shock-absorbing pad 4 over time. By providing through holes 534 at the bottom of the annular mounting groove 533, the heat on the shock-absorbing pad 4 can be dissipated in time, thereby maintaining a better shock-absorbing effect.

[0025] Please see Figure 3 In this embodiment, the annular outer wall 531 has multiple breaks 535, and multiple hooks 6 are disposed in the multiple breaks 535. Each hook 6 includes a support arm 61 and a hook portion 62. The support arm 61 is elastic and can bend under force to achieve a fastening. One end of the support arm 61 is connected to the bottom of the break 535, and the other end of the support arm 61 is connected to the hook portion 62. The annular outer wall 531 surrounds the motor seat 21 to limit the motor seat 21. The hooks 6 and the annular outer wall 531 are integrally molded plastic structures, which are easy to manufacture. The motor seat 21 is fastened by the hook portion 62, so that the motor seat 21 can press the shock-absorbing pad 4 tightly in the annular mounting groove 533, which can effectively prevent the motor seat from loosening and facilitate assembly. At the same time, when the fan is operating, the annular outer wall 531 can limit the displacement of the motor seat 21, thereby reducing vibration.

[0026] Please see Figure 3 In this embodiment, the break 535 exposes the shock-absorbing pad 4. When the fan operates at high speed, it will generate strong vibrations, which may exceed the energy absorption limit of the shock-absorbing pad 4 at a certain moment. The break 535 exposes the shock-absorbing pad 4, which increases the deformation space of the shock-absorbing pad 4, allowing the shock-absorbing pad 4 to release excess energy through its own deformation.

[0027] Please see Figure 2 In this embodiment, the frame 5 further includes an outer frame 51 and a connector 52. The outer frame 51 has a hollow region 511 for accommodating the fan blade 1. The sidewall of the hollow region 511 is connected to the mounting part 53 via the connector 52. The mounting part 53 is centrally located in the hollow region 511. The central location of the mounting part 53 avoids vibration imbalance caused by center of gravity shift, ensuring that the shock-absorbing pad 4 can be evenly compressed, thereby improving the vibration isolation effect of the fan.

[0028] Please see Figure 7In this embodiment, the fan blade 1 includes a hub 14 and a rotating shaft 12. The hub 14 has a groove 13 in the middle. One end of the rotating shaft 12 is connected to the center of the groove 13. The motor 22 includes a magnetic ring sleeve 222, a magnet 223, and a stator 224. The magnetic ring sleeve 222 is fitted in the groove 13, the magnet 223 is fitted in the magnetic ring sleeve 222, and the stator 224 is located in the magnet 223. The bushing 221 passes through the stator 224 and is fitted on the rotating shaft 12. The rotating shaft 12 can rotate relative to the bushing 221. The motor base 21 has a connecting sleeve 221 in the middle. The connecting sleeve 221 passes through the stator 224 and is rotatably connected to the rotating shaft 12. The outer wall of the connecting sleeve 221 is provided with the stator 224. The magnetic ring sleeve 222 is fixedly connected in the groove 13 to serve as a fixed base for the magnet 223, ensuring that the magnet 223 and the fan blade 1 can fit tightly together. The stator 224 is located inside the magnet 223 and is sleeved on the outer wall of the connecting sleeve 221. When energized, it drives the magnet 223 to rotate, thereby driving the fan blade 1 to rotate.

[0029] Optionally, a bushing 221 is provided between the rotating shaft 12 and the connecting sleeve 221. The bushing 221 is fitted on the inner wall of the connecting sleeve 221, and the bushing 221 is fitted on the rotating shaft 12. The connecting sleeve 221 is fitted on the bushing 221. This ensures that the rotating shaft 12 rotates in the center, avoids eccentric vibration, ensures that the shock-absorbing pad 4 is evenly compressed, and enhances the vibration isolation effect of the shock-absorbing pad 4.

[0030] Please see Figure 6 and Figure 7 In this embodiment, the drive assembly 2 further includes a circuit board 3. The stator 224 has an annular cylindrical wall 225, and the circuit board 3 is sleeved and welded onto the stator 224. An annular notch 32 is provided in the middle of the circuit board 3, through which the circuit board 3 is sleeved onto the annular cylindrical wall 225 of the stator 224 and welded together with the stator 224. In other embodiments, the circuit board 3 and the stator 224 are threadedly connected. Specifically, the circuit board 3 and the stator 224 have mating threaded holes, and the circuit board 3 and the stator 224 are connected by bolts screwed into the threaded holes.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Unless otherwise specified, an element defined by the phrase "comprising..." or "including..." does not exclude the presence of additional elements in the process, method, article, or terminal device that includes said element. Additionally, in this document, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number.

[0032] Although the above embodiments have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the above descriptions are merely embodiments of this utility model and do not limit the scope of patent protection of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this utility model.

Claims

1. An isolated fan, characterized by, include: Fan blades; A frame, the frame having a mounting part in the middle, the mounting part having an annular outer wall, an annular inner wall and a plurality of hooks, an annular mounting groove being formed between the annular outer wall and the annular inner wall, and the plurality of hooks being located next to the annular mounting groove; A drive assembly, comprising a motor and a motor mount, wherein the motor is mounted on the motor mount and connected to the fan blades for driving the fan blades to rotate, and the motor mount engages with a plurality of the latches; and A shock-absorbing pad is fitted onto the motor mount, and the motor mount presses the shock-absorbing pad onto the bottom of the annular mounting groove. The outer side wall of the shock-absorbing pad contacts the outer wall of the annular groove, and the inner side wall of the shock-absorbing pad contacts the inner wall of the annular groove.

2. The isolated fan of claim 1, wherein, The shock-absorbing pad is a rubber pad.

3. The isolated fan of claim 1, wherein, The bottom of the annular mounting groove is provided with through holes that pass through both sides of the frame.

4. The isolated fan of claim 1, wherein, The annular outer wall has multiple breaks, and multiple hooks are disposed in the multiple breaks. Each hook includes a support arm and a hook portion. One end of the support arm is connected to the bottom of the break, and the other end of the support arm is connected to the hook portion. The annular outer wall surrounds the motor seat to limit the motor seat.

5. The isolated fan of claim 4, wherein, The break exposes the shock-absorbing pad.

6. The isolated fan of claim 1, wherein, The frame also includes an outer frame and a connector. The outer frame has a hollow area to accommodate the fan blade. The sidewall of the hollow area is connected to the mounting part through the connector. The mounting part is centrally located in the hollow area.

7. The isolated fan of claim 1, wherein, The fan blade includes a hub and a shaft. A groove is provided in the middle of the hub. One end of the shaft is connected to the center of the groove. The motor includes a magnetic ring sleeve, a magnet, and a stator. The magnetic ring sleeve is fitted in the groove. The magnet is fitted in the magnetic ring sleeve. The stator is located in the magnet. A connecting sleeve is provided in the middle of the motor base. The connecting sleeve passes through the stator and is rotatably connected to the shaft. The stator is provided on the outer wall of the connecting sleeve.

8. The isolated fan of claim 7, wherein, The drive assembly also includes a circuit board, and the stator has an annular cylindrical wall, with the circuit board sleeved and soldered onto the stator.

9. The isolated fan of claim 8, wherein, The fan also includes multiple LEDs, which are arranged in a ring array on the circuit board.

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