CN218062712U - Cooling fan with damping and noise-reducing structure - Google Patents
Cooling fan with damping and noise-reducing structure Download PDFInfo
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- CN218062712U CN218062712U CN202220588383.9U CN202220588383U CN218062712U CN 218062712 U CN218062712 U CN 218062712U CN 202220588383 U CN202220588383 U CN 202220588383U CN 218062712 U CN218062712 U CN 218062712U
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Abstract
The utility model provides a radiator fan with vibration/noise reduction structure relates to radiator fan technical field. This radiator fan with vibration/noise reduction structure, including fan housing, fan housing's inside is provided with the main shaft, the equal fixedly connected with oil-free self-lubricating bearing in middle part both sides of main shaft, the equal fixedly connected with axle sleeve in outside both ends of main shaft, two the axle sleeve is close to the both ends at motor housing respectively, the outside of axle sleeve rotates and is connected with the sealed lantern ring. Through utilizing even axle sleeve fixed in the main shaft outside, screw extrusion fastening side clamping ring through a plurality of interval distribution, and then compress tightly people's type sealing rubber circle in the sealing ring lid outside, lubricating oil plays the lubrication action to even axle sleeve and sealing sleeve ring, and is more smooth and easy when making even axle sleeve and sealing sleeve ring rotate relatively, reduces the friction abnormal sound to it is firm to connect, for prior art, vibrations noise reduces by a wide margin.
Description
Technical Field
The utility model relates to a radiator fan technical field specifically is a radiator fan with vibration/noise reduction structure.
Background
The working principle of the cooling fan is realized according to energy conversion, the circuit principle of the cooling fan is generally divided into a plurality of forms, the performances of the fan are different due to different adopted circuits, the friction mode of the bearing is changed by adopting a rolling friction ball bearing, and a plurality of steel balls or steel columns are arranged between two iron rings and are lubricated by grease. The mode more effectively reduces the friction phenomenon between the bearing surfaces, effectively prolongs the service life of the fan bearing, reduces the heat productivity of the radiator, prolongs the service life, and has the disadvantages of more complex process, cost improvement and higher working noise.
In order to ensure that a heat-generating electronic device normally works and a heat-radiating fan is installed to radiate heat, such as a computer CPU (central processing unit) fan and the like, the manufacture of the fans is very simple, the heat-radiating fan continuously operates at the moment of starting up, but the vibration noise is generated when the fan continuously operates, so that the mood of people is influenced, and therefore, the heat-radiating fan with the shock-absorbing and noise-reducing structure is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, a have vibration/noise reduction structure radiator fan, solved radiator fan and function ceaselessly and can produce the problem of vibrations noise.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a radiator fan with vibration/noise reduction structure, includes fan housing, fan housing's inside is provided with the main shaft, the middle part fixedly connected with rotor of main shaft, the equal fixedly connected with in middle part both sides of main shaft does not have oily self-lubricating bearing, two the outside of oilless self-lubricating bearing is fixed connection respectively at motor housing's both ends, motor housing's middle part fixedly connected with stator, the inboard of stator corresponds the outside of rotor, the equal fixedly connected with axle sleeve in outside both ends of main shaft, two the axle sleeve is close to the both ends at motor housing respectively, the outside of axle sleeve is rotated and is connected with the sealed lantern ring, the equal fixedly connected with shock attenuation branch in both sides of sealed lantern ring, the lateral wall at fan housing is connected to the one end of shock attenuation branch, the equal fixedly connected with seal ring lid in both sides of sealed lantern ring, two the equal fixedly connected with installation clamping ring in side is kept away from mutually of sealed lantern ring lid, the middle part of installation clamping ring is provided with a plurality of interval distribution's screw, the one end of screw runs through installation clamping ring and fixedly connected with fastening side clamping ring, one side clamping ring is connected with humanoid seal ring lid, one end of humanoid seal ring lid is provided with the lubricating oil inboard.
Preferably, one side of the installation pressing ring is fixedly connected with a plurality of threaded rings distributed at intervals, and the inner side of each threaded ring is in threaded connection with the outer side of each screw.
Preferably, the connecting shaft sleeve, the sealing lantern ring, the sealing ring cover and the mounting press ring are all of annular structures, and the axes are all on the same straight line with the axis of the main shaft.
Preferably, one end of the inner side of the humanoid sealing rubber ring is connected to the outer side edge of the connecting shaft sleeve, a gap part is arranged between the sealing ring cover and the connecting shaft sleeve, and the other end of the inner side of the humanoid sealing rubber ring is connected to the inner side edge of the sealing ring cover.
Preferably, the one end terminal surface fixedly connected with rubber backing plate of shock attenuation branch, one side fixed connection of rubber backing plate is on fan shell's inside wall, the one end outer peripheral face of shock attenuation branch is connected with a plurality of interval distribution's damping rubber platform, the equal fixed connection in the inboard of the damping lantern ring in the outside of damping rubber platform, the outside one end fixedly connected with damping ring of the damping lantern ring, the middle part and the equal fixedly connected with packing ring in top of damping ring, the inboard of packing ring is provided with fastening bolt, fastening bolt's one end runs through fan shell and threaded connection has the nut, fastening bolt's the other end runs through damping ring and threaded connection has the nut.
Preferably, the rubber backing plate and the gasket are the same in thickness, and the diameter of the rubber backing plate is larger than the inner diameter of the damping lantern ring.
Preferably, the vibration reduction rubber table is in a circular truncated cone shape, an annular hole is formed between the vibration reduction supporting rod and the inner wall of the vibration reduction lantern ring, and the vibration reduction rubber table is in a squeezed state in the annular hole.
The working principle is as follows: in the use process of the oil-free self-lubricating bearing, solid lubrication and shaft friction are realized through frictional heat, excellent conditions of oil and powder coexistence lubrication are formed, the shaft is protected from abrasion, the solid lubrication characteristic is permanent, vibration and noise are reduced relative to a ball bearing, a connecting shaft sleeve is fixed on the outer side of a main shaft, a fastening side pressure ring is extruded through a plurality of screws distributed at intervals, a human-shaped sealing rubber ring is further pressed on the outer side of a sealing ring cover, the human-shaped sealing rubber ring plays a sealing role in lubricating oil in the sealing ring cover, the lubricating oil plays a lubricating role in the connecting shaft sleeve and the sealing sleeve ring, the connecting shaft sleeve and the sealing ring are smooth when rotating relatively, friction abnormal sound is reduced, the connection is stable, vibration noise is greatly reduced relative to the prior art, vibration between a damping support rod and a fan shell is reduced through a rubber cushion plate, vibration between the damping support rod and the fan shell is reduced through a plurality of vibration damping rubber tables distributed at intervals, vibration between the damping support rod and the damping ring and the fan shell is reduced through gaskets, vibration between the fastening bolt and the damping support rod and the damping ring and the fan shell can further play a damping role, and noise is further reduced.
The utility model provides a radiator fan with vibration/noise reduction structure. The method has the following beneficial effects:
1. the utility model discloses an utilize even axle sleeve fixed in the main shaft outside, screw extrusion fastening side clamping ring through a plurality of interval distribution, and then compress tightly people's shape sealing rubber circle in the sealing ring lid outside, make people's shape sealing rubber circle play the sealed effect to the lubricating oil in the sealing ring lid, lubricating oil plays the lubrication action to even axle sleeve and the sealing ring cover, it is more smooth and easy when making even axle sleeve and sealing ring rotate relatively, reduce the friction abnormal sound, and it is firm to connect, for prior art, the vibrations noise reduces by a wide margin.
2. The utility model discloses an utilize the rubber tie plate to reduce the vibrations between shock attenuation branch and the fan casing, utilize a plurality of interval distribution's damping rubber platform to reduce the vibrations between shock attenuation branch and the damping lantern ring, utilize the packing ring to reduce the vibrations between fastening bolt and damping ring and the fan casing, make shock attenuation branch can further play the cushioning effect in the outside of main shaft, further reduced the noise.
3. The utility model discloses a fixed connection is at motor housing's both ends respectively in two outer sides that do not have oily self-lubricating bearing, in the non-oily self-lubricating bearing use, makes solid lubrication and axle friction through the frictional heat, forms the excellent condition of oil, the coexistence lubrication of powder, both protected the axle and do not wear and tear, makes the solid lubrication characteristic eternal again, adopts the brass material, and hardness ratio general copper sheathing is one time higher, and wear resistance is also one time higher, bears the dynamic height, for ball bearing, has reduced vibrations and noise.
Drawings
Fig. 1 is a schematic view of the external structure of the fan casing of the present invention;
fig. 2 is a schematic view of the internal structure of the fan casing of the present invention;
fig. 3 is a schematic view of the internal structure of the motor casing of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 2;
FIG. 5 is an enlarged view of FIG. 2 at B;
fig. 6 is an enlarged view of fig. 5 at C.
Wherein, 1, a fan shell; 2. a main shaft; 3. a connecting shaft sleeve; 4. a fan blade; 5. a sealing ring cover; 6. a sealing collar; 7. fastening a bolt; 8. a shock-absorbing ring; 9. a shock-absorbing strut; 10. a stator; 11. a motor housing; 12. a rotor; 13. oil-free self-lubricating bearings; 14. a gasket; 15. a nut; 16. a vibration damping rubber table; 17. a vibration damping collar; 18. a rubber pad plate; 19. installing a pressure ring; 20. a screw; 21. a threaded ring; 22. fastening a side compression ring; 23. a human-shaped sealing rubber ring; 24. and (3) lubricating oil.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The embodiment is as follows:
as shown in fig. 1-6, an embodiment of the present invention provides a heat dissipation fan with vibration/noise reduction structure, including a fan housing 1, a main shaft 2 is disposed inside the fan housing 1, a rotor 12 is fixedly connected to the middle of the main shaft 2, oil-free self-lubricating bearings 13 are fixedly connected to both sides of the middle of the main shaft 2, the outer sides of the two oil-free self-lubricating bearings 13 are respectively and fixedly connected to both ends of a motor housing 11, when the oil-free self-lubricating bearings 13 are used, solid lubrication and shaft friction are formed by friction heat, so as to form excellent conditions of oil and powder coexistence lubrication, which not only protects the shaft from abrasion, but also keeps the solid lubrication characteristic constant, and adopts brass, the hardness is twice higher than that of a common copper bush, the wear resistance is also twice higher, the bearing capacity is high, vibration and noise are reduced relative to ball bearings, a stator 10 is fixedly connected to the middle of the motor housing 11, the inner side of the stator 10 corresponds to the outer side of the rotor 12, both ends of the outer side of the main shaft 2 are fixedly connected with coupling sleeves 3, the two coupling sleeves 3 are respectively close to both ends of a motor shell 11, the outer side of the coupling sleeves 3 is rotatably connected with a sealing lantern ring 6, both sides of the sealing lantern ring 6 are fixedly connected with damping support rods 9, one end of each damping support rod 9 is connected to the side wall of the fan shell 1, both sides of the sealing lantern ring 6 are fixedly connected with sealing ring covers 5, both far sides of the two sealing ring covers 5 are fixedly connected with mounting press rings 19, the middle parts of the mounting press rings 19 are provided with a plurality of screws 20 which are distributed at intervals, one ends of the screws 20 penetrate through the mounting press rings 19 and are fixedly connected with fastening side press rings 22, one side of each fastening side press ring 22 is fixedly connected with a human-shaped sealing rubber ring 23, one side of the human-shaped sealing rubber ring 23 is connected to the outer side of the sealing ring covers 5, the inner side of the sealing ring covers 5 is provided with lubricating oil 24, one end of the main shaft 2 is fixedly connected with a fan blade 4.
Utilize even axle sleeve 3 fixed in 2 outsides of main shaft, screw 20 extrusion fastening side clamping ring 22 through a plurality of interval distribution, and then compress tightly people's shape sealing rubber circle 23 in the 5 outsides of sealing ring lid, make people's shape sealing rubber circle 23 play the sealed effect to the lubricating oil 24 in the sealing ring lid 5, lubricating oil 24 plays the lubricated effect to even axle sleeve 3 and the 6 sealed lantern rings, it is more smooth and easy when making even axle sleeve 3 and the 6 relative rotations of sealed lantern rings, reduce the friction abnormal sound, and connect firmly, for prior art, the vibrations noise reduces by a wide margin.
A plurality of threaded rings 21 distributed at intervals are fixedly connected to one side of the mounting compression ring 19, and the inner sides of the threaded rings 21 are in threaded connection with the outer sides of the screws 20. The threaded ring 21 is reserved on the outer side of the installation pressing ring 19, so that the screws 20 are convenient to connect on the installation pressing ring 19, the fastening side pressing ring 22 can be stressed uniformly by the aid of the screws 20, and the sealing effect of the humanoid sealing rubber ring is guaranteed.
The connecting shaft sleeve 3, the sealing lantern ring 6, the sealing lantern ring cover 5 and the installation pressing ring 19 are all of annular structures, and the axes are all on the same straight line with the axis of the main shaft 2. The connecting shaft sleeve 3, the sealing lantern ring 6, the sealing ring cover 5 and the mounting compression ring 19 which are of the annular structure are mounted on the outer side of the main shaft 2, the sealing lantern ring 6 is guaranteed to rotate relative to the main shaft 2, and stress unbalance caused by axis deviation is avoided.
One end of the inner side of the human-shaped sealing rubber ring 23 is connected to the outer side edge of the connecting shaft sleeve 3, a gap part is arranged between the sealing ring cover 5 and the connecting shaft sleeve 3, and the other end of the inner side of the human-shaped sealing rubber ring 23 is connected to the inner side edge of the sealing ring cover 5. The gap part at the joint of the coupling sleeve 3 and the sealing ring cover 5 is sealed by the human-shaped sealing rubber ring 23 to prevent oil leakage.
Referring to fig. 4, one end face of shock-absorbing strut 9 is fixedly connected with rubber pad 18, one side fixed connection of rubber pad 18 is on fan casing 1's inside wall, the one end outer peripheral face of shock-absorbing strut 9 is connected with a plurality of interval distribution's damping rubber platform 16, the equal fixed connection in the outside of damping rubber platform 16 is in the inboard of damping lantern ring 17, the outside one end fixedly connected with damping ring 8 of damping lantern ring 17, the middle part and the equal fixedly connected with packing ring 14 in top of damping ring 8, the inboard of packing ring 14 is provided with fastening bolt 7, fastening bolt 7's one end runs through fan casing 1 and threaded connection has nut 15, fastening bolt 7's the other end runs through damping ring 8 and threaded connection has nut 15.
Utilize the rubber tie plate 18 to reduce the vibrations between shock attenuation branch 9 and fan housing 1, utilize the vibrations between a plurality of interval distribution's damping rubber platform 16 to reduce shock attenuation branch 9 and the damping lantern ring 17, utilize packing ring 14 to reduce fastening bolt 7 and damping ring 8 and the vibrations between damping ring 8 and fan housing 1, make shock attenuation branch 9 can further play the cushioning effect in the outside of main shaft 2, further reduced the noise.
The rubber pad 18 and the washer 14 have the same thickness, and the diameter of the rubber pad 18 is larger than the inner diameter of the damping collar 17. The rubber base plate 18 and the gasket 14 are same in thickness, unbalance and vibration caused by thickness difference can be avoided, the diameter of the rubber base plate 18 is larger than the inner diameter of the vibration reduction lantern ring 17, the rubber base plate 18 can be stably supported between the vibration reduction lantern ring 17 and the fan shell 1, and the rubber base plate 18 is prevented from entering the inside of the vibration reduction lantern ring 17.
The damping rubber table 16 is in a circular truncated cone shape, an annular hole is formed between the damping support rod 9 and the inner wall of the damping lantern ring 17, and the damping rubber table 16 is in a squeezed state in the annular hole. The damping supporting rod 9 and the damping lantern ring 17 are tightly connected by the circular truncated cone-shaped damping rubber table 16, the damping rubber table 16 is kept in a squeezed state in the annular hole, the anti-falling effect can be achieved, the connection is tight, and the damping effect is good.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. The utility model provides a radiator fan with vibration/noise reduction structure, includes fan housing (1), its characterized in that: the fan comprises a fan shell (1), wherein a main shaft (2) is arranged inside the fan shell (1), a rotor (12) is fixedly connected to the middle of the main shaft (2), oil-free self-lubricating bearings (13) are fixedly connected to two sides of the middle of the main shaft (2), two ends of the motor shell (11) are fixedly connected to the outer sides of the oil-free self-lubricating bearings (13) respectively, a stator (10) is fixedly connected to the middle of the motor shell (11), the inner side of the stator (10) corresponds to the outer side of the rotor (12), a connecting shaft sleeve (3) is fixedly connected to two ends of the outer side of the main shaft (2), two ends of the connecting shaft sleeve (3) are respectively close to two ends of the motor shell (11), a sealing ring cover (5) is rotatably connected to the outer side of the connecting shaft sleeve (3), damping support rods (9) are fixedly connected to two sides of the sealing ring cover (6), one end of each damping support rod (9) is connected to the side of the fan shell (1), sealing ring cover (5) is fixedly connected to the two sides, screws (19) are fixedly connected to the middle of the sealing ring cover (5), and a plurality of screws (20) are arranged to penetrate through the mounting screws (20), one side fixedly connected with people's type sealing rubber circle (23) of fastening side clamping ring (22), the outside at sealing ring lid (5) is connected to one side of people's type sealing rubber circle (23), the inboard of sealing ring lid (5) is provided with lubricating oil (24), one end fixedly connected with fan leaf (4) of main shaft (2).
2. The heat dissipation fan with vibration/noise reduction structure as claimed in claim 1, wherein: one side fixedly connected with of installation clamping ring (19) has a plurality of interval distribution's screw ring (21), the inboard threaded connection of screw ring (21) is in the outside of screw (20).
3. The heat dissipating fan with shock absorbing and noise reducing structure as set forth in claim 1, wherein: the connecting shaft sleeve (3), the sealing sleeve ring (6), the sealing ring cover (5) and the mounting pressing ring (19) are all of annular structures, and the axes are all on the same straight line with the axis of the main shaft (2).
4. The heat dissipation fan with vibration/noise reduction structure as claimed in claim 1, wherein: the inboard one end of people's type sealing rubber circle (23) is connected at the outside edge of axle sleeve (3), be provided with clearance portion between sealing ring lid (5) and axle sleeve (3), the inboard other end of people's type sealing rubber circle (23) is connected at the inboard edge of sealing ring lid (5).
5. The heat dissipation fan with vibration/noise reduction structure as claimed in claim 1, wherein: the utility model discloses a fan damping support, including damping support rod (9), one end terminal surface fixedly connected with rubber backing plate (18), one side fixed connection of rubber backing plate (18) is on the inside wall of fan shell (1), the one end outer peripheral face of damping support rod (9) is connected with a plurality of interval distribution's damping rubber platform (16), the equal fixed connection in the inboard of damping lantern ring (17) in the outside of damping rubber platform (16), the outside one end fixedly connected with damping ring (8) of damping lantern ring (17), the middle part and the equal fixedly connected with packing ring (14) in top of damping ring (8), the inboard of packing ring (14) is provided with fastening bolt (7), the one end of fastening bolt (7) runs through fan shell (1) and threaded connection has nut (15), the other end of fastening bolt (7) runs through damping ring (8) and threaded connection has nut (15).
6. The heat dissipating fan with vibration/noise reduction structure as claimed in claim 5, wherein: the thickness of the rubber backing plate (18) is the same as that of the gasket (14), and the diameter of the rubber backing plate (18) is larger than the inner diameter of the damping collar (17).
7. The heat dissipating fan with vibration/noise reduction structure as claimed in claim 5, wherein: the damping rubber table (16) is in a circular table shape, and an annular hole is formed between the damping support rod (9) and the inner wall of the damping lantern ring (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220588383.9U CN218062712U (en) | 2022-03-16 | 2022-03-16 | Cooling fan with damping and noise-reducing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220588383.9U CN218062712U (en) | 2022-03-16 | 2022-03-16 | Cooling fan with damping and noise-reducing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218062712U true CN218062712U (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220588383.9U Active CN218062712U (en) | 2022-03-16 | 2022-03-16 | Cooling fan with damping and noise-reducing structure |
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| Country | Link |
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| CN (1) | CN218062712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118188547A (en) * | 2024-05-14 | 2024-06-14 | 江苏毅合捷汽车科技股份有限公司 | Rotary shaft supporting structure of electric supercharger |
-
2022
- 2022-03-16 CN CN202220588383.9U patent/CN218062712U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118188547A (en) * | 2024-05-14 | 2024-06-14 | 江苏毅合捷汽车科技股份有限公司 | Rotary shaft supporting structure of electric supercharger |
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Effective date of registration: 20230920 Address after: 441300 Chengnan Industrial Park, Chengjiao Office, Guangshui City, Suizhou City, Hubei Province Patentee after: Hubei Heming Intelligent Technology Development Co.,Ltd. Address before: Room 1303, Building 19, Poly Central Mansion, Dali Town, Nanhai District, Foshan, Guangdong 528231 Patentee before: Qian Hengbin |