Vibration isolation fan

Abstract

The vibration isolation fan comprises fan blades, a frame body, a driving assembly and a damping pad, a mounting part is arranged in the middle of the frame body, the mounting part is provided with an annular outer wall, an annular inner wall and a plurality of clamping hooks, an annular mounting groove is formed between the annular outer wall and the annular inner wall, and the clamping hooks are located beside the annular mounting groove. The driving assembly comprises a motor and a motor base, the motor is arranged on the motor base, connected with the fan blades and used for driving the fan blades to rotate, and the motor base is connected with the clamping hooks in a clamped mode. The motor base is sleeved with the shock pad, the motor base presses the shock pad on the groove bottom of the annular installation groove, the outer side wall of the shock pad makes contact with the annular outer wall, and the inner side wall of the shock pad makes contact with the annular inner wall. And by arranging a shock pad, the vibration amplitude of the fan is weakened, and the stability of the fan is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and in particular to a vibration isolation fan. Background Art

[0002] Cooling fans are essential heat dissipation components in electronic devices and mechanical systems. Their core function is to accelerate heat exchange by actively directing airflow, preventing equipment failures caused by heat buildup. In various high-power scenarios, such as data center server clusters, new energy vehicle battery packs, and industrial automation controllers, internal semiconductor components, circuits, or mechanical parts release significant amounts of heat during continuous operation. If this heat cannot be transferred promptly, it can lead to chip performance degradation and accelerated component aging.

[0003] The prior art can refer to the Chinese patent with authorization announcement number CN 222823413 U, which discloses an adjustable heat dissipation fan, including a fan outer frame, a fan inner frame, a drive device, and fan blades. The inner side surface of the fan outer frame is provided with a plurality of adjustment plates at intervals, and the outer side surface of the fan inner frame is provided with a plurality of positioning protrusions, each of which is respectively engaged with a respective adjustment plate. The fan inner frame is provided with a mounting bracket, the drive device is fixedly mounted on the mounting bracket, and the fan blades are fixedly mounted on the rotating end of the drive device. Although the fan is connected to the adjustment plate by the positioning protrusions, the tilt angle of the fan blades can be adjusted to achieve better heat dissipation, but vibration will be generated during the operation of the fan, thereby affecting the stability of the fan. Summary of the Invention

[0004] Therefore, it is necessary to provide a vibration isolation fan to solve the problem that ordinary fans vibrate when the fan is in operation.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A vibration isolation fan, comprising:

[0007] fan blades;

[0008] A frame body, wherein a mounting portion is provided in the middle of the frame body, wherein the mounting portion comprises an annular outer wall, an annular inner wall, and a plurality of hooks, an annular mounting groove is formed between the annular outer wall and the annular inner wall, and the plurality of hooks are located adjacent to the annular mounting groove;

[0009] a drive assembly, the drive assembly comprising a motor and a motor base, the motor being disposed on the motor base and connected to the fan blades for driving the fan blades to rotate, the motor base being engaged with the plurality of hooks; and

[0010] A shock-absorbing pad is sleeved on the motor seat, and the motor seat presses the shock-absorbing pad onto the bottom of the annular mounting groove, the outer side wall of the shock-absorbing pad contacts the annular outer wall, and the inner side wall of the shock-absorbing pad contacts the annular inner wall.

[0011] Preferably, the shock-absorbing pad is annular, and an annular groove is provided on one side of the shock-absorbing pad relative to the motor seat. An annular protrusion is provided on the motor seat, and the shock-absorbing pad is sleeved on the annular protrusion of the motor seat through the annular groove.

[0012] Preferably, the shock-absorbing pad is a rubber pad.

[0013] Preferably, a through hole penetrating through both sides of the frame is provided at the bottom of the annular mounting groove.

[0014] Preferably, the annular outer wall has multiple fractures, and multiple hooks are arranged in the multiple fractures. The hook includes a support arm and a hook portion. One end of the support arm is connected to the bottom of the fracture, 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.

[0015] Preferably, the fracture exposes the shock-absorbing pad.

[0016] Preferably, the frame body further includes an outer frame and a connecting piece, the outer frame has a hollow area for accommodating the fan blades, the side walls of the hollow area are connected to the mounting portion through the connecting piece, and the mounting portion is centrally arranged in the hollow area.

[0017] Preferably, the fan blade includes a hub and a rotating shaft, a groove is provided in the middle of the hub, one end of the rotating shaft is connected to the center of the groove, the motor includes a magnetic ring, a magnet and a stator, the magnetic ring is sleeved in the groove, the magnet is sleeved in the magnetic ring, 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 rotating shaft, and the stator is provided on the outer wall of the connecting sleeve.

[0018] Preferably, the driving assembly further includes a circuit board, the stator has an annular cylindrical wall, and the circuit board is sleeved on and welded to the stator.

[0019] Preferably, the fan further comprises a plurality of lamp beads, and the plurality of lamp beads are arranged in a ring array on the circuit board.

[0020] The above technical solution has the following beneficial effects: the motor drives the fan blades to rotate. Due to the centrifugal force, the fan blades will deviate to the surroundings and collide with the frame, thereby generating vibration, which reduces the structural stability of the fan. By arranging a shock-absorbing pad between the frame and the motor base, the vibration intensity can be effectively weakened, the stability of the fan can be improved, and the service life of the fan can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an exploded view of the frame, the shock-absorbing pad, and the motor base of this embodiment;

[0022] Figure 2 Schematic diagram of the structure of the frame body of this embodiment;

[0023] Figure 3 This is a partial enlarged view of the frame described in this embodiment;

[0024] Figure 4 This is a schematic structural diagram of the motor base described in this embodiment;

[0025] Figure 5 Schematic diagram of the structure of the shock-absorbing pad of this embodiment;

[0026] Figure 6 This is a schematic diagram of the distribution of the lamp beads on the circuit board according to this embodiment;

[0027] Figure 7 This is an exploded view of the fan blades and the drive assembly described in this embodiment;

[0028] Figure 8 This is a schematic diagram of the structure in which the shock-absorbing pad of this embodiment is placed in the fan;

[0029] Figure 9 for Figure 8 Enlarged view of area A in the middle.

[0030] Description of reference numerals:

[0031] 1. Fan blade; 11. Blade; 12. Rotating shaft; 13. Groove; 14. Hub; 2. Drive assembly; 21. Motor seat; 211. Connecting sleeve; 212. Annular protrusion; 22. Motor; 221. Bushing; 222. Magnetic ring; 223. Magnet; 224. Stator; 225. Annular cylinder wall; 3. Circuit board; 31. Lamp 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. DETAILED DESCRIPTION

[0032] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0033] See also Figures 1 to 9 This embodiment provides a vibration isolation fan, the fan comprising:

[0034] Fan blade 1;

[0035] The frame 5 has a mounting portion 53 in the middle thereof. The mounting portion 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 adjacent to the annular mounting groove 533.

[0036] A drive assembly 2, comprising a motor 22 and a motor base 21, wherein the motor 22 is disposed 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 the plurality of hooks 6; and

[0037] Shock-absorbing pad 4, the shock-absorbing pad 4 is sleeved on the motor seat 21, the motor seat 21 presses the shock-absorbing pad 4 on the bottom of the annular mounting groove 533, the outer wall of the shock-absorbing pad 4 contacts the annular outer wall 531, and the inner wall of the shock-absorbing pad 4 contacts the annular inner wall 532. The structure is as follows Figure 7 and Figure 9 shown.

[0038] Optionally, there are four hooks 6, symmetrically distributed around the annular mounting groove 533. The hook portion 62 of the hook 6 is elastic, and the motor base 21 can be connected to the hook 6 by pressing it toward the hook 6. The support arm 61 of the hook 6 can limit the position of the motor base 21, so that the frame 5 can better fix the motor base 21. The motor 22 is located in the groove 13, and the shaft 12 passes through the center of the stator 224. The connecting sleeve 211 on the motor base 21 is sleeved on the shaft 12. This sleeve arrangement makes the fan structure more compact and more convenient for disassembly and assembly.

[0039] The motor 22 drives the fan blades 1 to rotate. Due to the centrifugal force, the fan blades 1 will deviate to the surroundings and collide with the frame 5, thereby generating vibration, which reduces the structural stability of the fan. By arranging a shock-absorbing pad 4 between the frame 5 and the motor base 21, the vibration intensity can be effectively weakened, the stability of the fan can be improved, and the service life of the fan can be increased.

[0040] See also Figure 3 、 Figure 4 、 Figure 5 and Figure 9In this embodiment, the shock-absorbing pad 4 is annular and has an annular groove 41 on one side of the shock-absorbing pad 4 facing the motor base 21. The motor base 21 is provided with an annular protrusion 212. The shock-absorbing pad 4 is sleeved onto the annular protrusion 212 of the motor base 21 via the annular groove 41. This sleeve arrangement allows the shock-absorbing pad 4 and the motor base 21 to fit tightly together, 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 interchangeable, i.e., the annular protrusion 212 is provided on the shock-absorbing pad 4, while the annular groove 41 is provided on the motor base 21.

[0041] See also Figure 5 In this embodiment, the shock-absorbing pad 4 is a rubber pad. The rubber pad is low in production cost, easy to obtain, and has a high shock-absorbing effect, and can effectively absorb the vibration generated by the fan blade 1.

[0042] See also Figure 3 In this embodiment, the bottom of the annular mounting groove 533 is provided with through holes 534 that extend through both sides of the frame 5. When the shock-absorbing pad 4 absorbs the vibrations generated by the fan blade 1, it accumulates heat. If this heat cannot be dissipated in a timely manner, the shock-absorbing effect of the shock-absorbing pad 4 will be affected 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 a timely manner, thereby maintaining a good shock-absorbing effect.

[0043] See also Figure 3 In this embodiment, the annular outer wall 531 has a plurality of cutouts 535, with a plurality of hooks 6 disposed within the cutouts 535. The hooks 6 include an arm 61 and a hook portion 62. The arm 61 is elastic and can bend under force to achieve a snap-fit ​​connection. One end of the arm 61 is connected to the bottom of the cutout 535, and the other end of the arm 61 is connected to the hook portion 62. The annular outer wall 531 surrounds the motor base 21 to retain the motor base 21 in position. The hooks 6 and annular outer wall 531 are integrally molded from plastic, making manufacturing easy. The hook portions 62 of the hooks 6 engage the motor base 21, allowing the motor base 21 to tightly press the shock-absorbing pad 4 into the annular mounting groove 533, effectively preventing the motor base from loosening and facilitating assembly. Furthermore, during fan operation, the annular outer wall 531 limits displacement of the motor base 21, thereby reducing vibration.

[0044] See also Figure 3 In this embodiment, the cutout 535 exposes the shock-absorbing pad 4. When the fan operates at high speed, it generates strong vibrations that may exceed the energy absorption limit of the shock-absorbing pad 4 at some point. The cutout 535 exposes the shock-absorbing pad 4, increasing its deformation space and allowing the shock-absorbing pad 4 to release excess energy through its own deformation.

[0045] See also 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 area 511 for accommodating the fan blades 1. The sidewalls of the hollow area 511 are connected to the mounting portion 53 via the connector 52. The mounting portion 53 is centrally located within the hollow area 511. The central location of the mounting portion 53 prevents vibration imbalance caused by a shift in the center of gravity, ensures uniform pressure on the shock-absorbing pad 4, and thereby improves the vibration isolation effect of the fan.

[0046] See also Figure 7 In this embodiment, the fan blade 1 includes a hub 14 and a rotating shaft 12, a groove 13 is provided in the middle of the hub 14, and one end of the rotating shaft 12 is connected to the center of the groove 13, and the motor 22 includes a magnetic ring 222, a magnet 223, and a stator 224, the magnetic ring 222 is sleeved in the groove 13, the magnet 223 is sleeved in the magnetic ring 222, and the stator 224 is located in the magnet 223, the sleeve 221 passes through the stator 224 and is sleeved on the rotating shaft 12, and the rotating shaft 12 can rotate relative to the sleeve 221, and a connecting sleeve 221 is provided in the middle of the motor base 21, the connecting sleeve 221 passes through the stator 224 and is rotatably connected to the rotating shaft 12, and the stator 224 is provided on the outer wall of the connecting sleeve 221. The magnetic ring 222 is fixedly connected to the groove 13 to serve as a fixed base for the magnet 223, ensuring that the magnet 223 can fit tightly with the fan blade 1. The stator 224 is located inside the magnet 223 and is sleeved on the outer wall of the connecting sleeve 221. When powered, it drives the magnet 223 to rotate, thereby driving the fan blade 1 to rotate.

[0047] Optionally, a sleeve 221 is provided between the rotating shaft 12 and the connecting sleeve 221, and the inner wall of the connecting sleeve 221 is sleeved with the sleeve 221. The sleeve 221 is sleeved on the rotating shaft 12, and the connecting sleeve 221 is sleeved on the sleeve 221. This can ensure that the rotating shaft 12 rotates in the center, avoid eccentric vibration, ensure that the shock-absorbing pad 4 is evenly compressed, and enhance the vibration isolation effect of the shock-absorbing pad 4.

[0048] See also 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 to the stator 224. An annular bayonet 32 ​​is provided in the middle of the circuit board 3. The circuit board 3 is sleeved on the annular cylindrical wall 225 of the stator 224 through the annular bayonet 32 ​​and is welded to the stator 224. In other embodiments, the circuit board 3 is threadedly connected to the stator 224. Specifically, the circuit board 3 and the stator 224 have mutually matching threaded holes, and the circuit board 3 and the stator 224 are connected by bolts screwed into the threaded holes.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or terminal device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. Without further limitation, elements defined by the phrase "include..." or "comprising..." do not exclude the presence of additional elements in the process, method, article, or terminal device comprising the elements. Furthermore, in this document, "greater than," "less than," "exceeding," etc., are understood to exclude the number itself; "above," "below," "within," etc., are understood to include the number itself.

[0050] Although the above embodiments have been described, those skilled in the art may make additional changes and modifications to these embodiments once they know the basic creative concepts. Therefore, the above descriptions are merely embodiments of the present invention and do not limit the scope of patent protection of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the present invention.

Claims

1. A vibration isolation fan, characterized in that: include: fan blades; A frame body, wherein a mounting portion is provided in the middle of the frame body, wherein the mounting portion comprises an annular outer wall, an annular inner wall, and a plurality of hooks, an annular mounting groove is formed between the annular outer wall and the annular inner wall, and the plurality of hooks are located adjacent to the annular mounting groove; a drive assembly, the drive assembly comprising a motor and a motor base, the motor being disposed on the motor base and connected to the fan blades for driving the fan blades to rotate, the motor base being engaged with the plurality of hooks; and A shock-absorbing pad is sleeved on the motor seat, and the motor seat presses the shock-absorbing pad onto the bottom of the annular mounting groove, the outer side wall of the shock-absorbing pad contacts the annular outer wall, and the inner side wall of the shock-absorbing pad contacts the annular inner wall.

2. The vibration isolation fan according to claim 1, characterized in that: The shock-absorbing pad is a rubber pad.

3. The vibration isolation fan according to claim 1, characterized in that: The bottom of the annular mounting groove is provided with a through hole penetrating through both sides of the frame.

4. The vibration isolation fan according to claim 1, characterized in that: The annular outer wall has multiple fractures, and multiple hooks are arranged in the multiple fractures. The hook includes a support arm and a hook portion. One end of the support arm is connected to the bottom of the fracture, and the other end of the support arm is connected to the hook portion. The annular outer wall surrounds the motor base to limit the motor base.

5. The vibration isolation fan according to claim 4, characterized in that: The fracture exposes the shock-absorbing pad.

6. The vibration isolation fan according to claim 1, characterized in that: The frame body further includes an outer frame and a connecting piece. The outer frame has a hollow area for accommodating the fan blades. The side walls of the hollow area are connected to the mounting portion through the connecting piece. The mounting portion is centrally arranged in the hollow area.

7. The vibration isolation fan according to claim 1, characterized in that: The fan blade includes a hub and a rotating shaft, a groove is provided in the middle of the hub, one end of the rotating shaft is connected to the center of the groove, the motor includes a magnetic ring, a magnet and a stator, the magnetic ring is sleeved in the groove, the magnet is sleeved in the magnetic ring, 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 rotating shaft, and the stator is provided on the outer wall of the connecting sleeve.

8. The vibration isolation fan according to claim 7, characterized in that: The driving assembly further includes a circuit board. The stator has an annular cylindrical wall. The circuit board is sleeved on and welded to the stator.

9. The vibration isolation fan according to claim 8, characterized in that: The fan further comprises a plurality of lamp beads, which are arranged in a ring array on the circuit board.

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