CN219035059U - Vibration-proof and heat-dissipating fan with built-in air duct - Google Patents
Vibration-proof and heat-dissipating fan with built-in air duct Download PDFInfo
- Publication number
- CN219035059U CN219035059U CN202223169340.6U CN202223169340U CN219035059U CN 219035059 U CN219035059 U CN 219035059U CN 202223169340 U CN202223169340 U CN 202223169340U CN 219035059 U CN219035059 U CN 219035059U
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- rotating shaft
- bottom plate
- fan
- vibration
- air duct
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Abstract
The utility model discloses an anti-vibration and heat dissipation fan with an air duct arranged inside, which comprises a bottom plate and a shell arranged on the bottom plate, wherein an air inlet is arranged on the shell, and an air outlet corresponding to the air inlet is arranged on the bottom plate; the rotating shaft is arranged on the protruding part of the bottom plate through a bearing, one end, close to the bottom plate, of the rotating shaft is sleeved with a shaft baffle ring, and one end, far away from the bottom plate, of the rotating shaft is provided with a rotating shaft seat ring; the inner side of the fan blade is provided with a metal lining plate, and the fan blade is connected with the rotating shaft seat ring; the rotor is arranged on the other side of the metal lining plate, and the stator is arranged on the other side of the protruding part and at the position corresponding to the rotor. According to the utility model, the fan blades and the rotating shaft are fastened through the bolts, and the stud surface is provided with the sealant, so that the matching between the fan blades and the rotating shaft is safe and reliable, and the fan blades are not easy to fall off in a high-intensity vibration environment; the fan can adjust the air quantity according to the actual use working condition by PWM pulse width speed regulation, and the practicability of the fan is improved.
Description
Technical Field
The utility model relates to an anti-vibration and heat dissipation fan with an air duct.
Background
When the air-cooled engine is used as a hybrid range extender, high power is required to be output to the motor under the condition of high rotating speed so as to generate enough electric energy to be used as a power source of a vehicle or an aircraft; at rest, hovering or low speed, the air-cooled engine cannot work under these conditions because there is insufficient air flow to cool the air-cooled engine, and an additional forced air cooling system is required. In the prior art, fan blades of a traditional system are integrated on a crankshaft, so that the air quantity is small, and enough incoming flow cannot be provided for a double-cylinder or multi-cylinder engine to dissipate heat; when the fan is additionally arranged on the air duct, the rotation of the fan blade and the vibration of the fan body cannot be synchronized, so that the fan blade and the rotating shaft are separated from each other to fail when the engine vibrates at high frequency and large amplitude, the damage probability of the fan is greatly increased, and the service life is greatly shortened.
Disclosure of Invention
The utility model aims to: the utility model aims to provide an air duct built-in anti-vibration cooling fan which is fastened in installation and good in anti-vibration performance.
The technical scheme is as follows: the utility model relates to an air duct built-in anti-vibration cooling fan, which comprises a bottom plate and a shell arranged on the bottom plate, wherein an air inlet is arranged on the shell, and an air outlet corresponding to the air inlet is arranged on the bottom plate; the rotating shaft is arranged on the protruding part of the bottom plate through a bearing, one end, close to the bottom plate, of the rotating shaft is sleeved with a shaft baffle ring, and one end, far away from the bottom plate, of the rotating shaft is provided with a rotating shaft seat ring; the inner side of the fan blade is provided with a metal lining plate, and the fan blade is connected with the rotating shaft seat ring; the rotor is arranged on the other side of the metal lining plate, and the stator is arranged on the other side of the protruding part and at the position corresponding to the rotor.
The rotary shaft seat ring is in interference fit with the rotary shaft, and the cylindrical surface of the mounting cylindrical surface is coated with cylindrical surface sealant.
The fan blade and the rotating shaft seat ring are assembled through a metal lining plate and four groups of bolts and nuts.
The screw is used for connecting the bottom plate and the shell, and at least four groups of screws are arranged.
Wherein, the control board with PWM function is also installed on the bottom board.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the fan blades and the rotating shaft are fastened through the bolts, and the stud surface is provided with the sealant, so that the matching between the fan blades and the rotating shaft is safe and reliable, and the fan blades are not easy to fall off in a high-intensity vibration environment; meanwhile, the fan blades and the rotating shaft seat ring are assembled through the metal lining plates and four groups of bolts and nuts, so that the fan blades are prevented from loosening under the condition of high-intensity vibration, and reliable and effective heat dissipation is carried out on the system; finally, the fan can be directly arranged on different air guide systems through the bolt fastening pieces, so that the fan is convenient to use and replace.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
fig. 2 is a schematic diagram of the overall structure of the present utility model.
Detailed Description
As shown in fig. 1-2, the air duct built-in anti-vibration cooling fan comprises a bottom plate 1 and a shell 12 connected with the bottom plate 1 through four groups of screws 13, wherein an air inlet is formed in the shell 12, and an air outlet corresponding to the air inlet is formed in the bottom plate 1; in the cavity formed by the bottom plate 1 and the shell 12, a rotating shaft 5 is arranged on a protruding part 14 of the bottom plate 1 through two groups of bearings 7, one end, close to the bottom plate 1, of the rotating shaft 5 is sleeved with a shaft baffle ring 8, one end, far away from the bottom plate 1, of the rotating shaft 5 is provided with a rotating shaft seat ring 4, and the rotating shaft seat ring 4 and the rotating shaft 5 are pressed and coated with cylindrical sealant through interference fit so as to ensure vibration resistance; the inner side of the fan blade 2 is additionally provided with a metal lining plate 3, the fan blade 2 and the rotating shaft seat ring 4 are assembled through the metal lining plate 3 and four groups of bolt nuts 6, so that the fan blade is ensured not to loose under the condition of high-intensity vibration, and the system is reliably and effectively cooled; the rotor 10 is arranged on the other side of the metal lining plate 3, the stator 9 is arranged on the other side of the protruding part 14 corresponding to the rotor 10, the control board 11 with PWM (pulse width modulation) function is also arranged on the bottom board 1, and the control board 11 is used for controlling the rotating speed of the fan blades 2.
Claims (5)
1. An anti-vibration and cooling fan with an air duct arranged inside comprises a bottom plate (1) and a shell (12) arranged on the bottom plate (1), wherein an air inlet is arranged on the shell (12), and an air outlet corresponding to the air inlet is arranged on the bottom plate (1); the device is characterized in that a rotating shaft (5) is arranged on a protruding part (14) of a bottom plate (1) through a bearing (7), a retainer ring (8) is sleeved at one end, close to the bottom plate (1), of the rotating shaft (5), and a rotating shaft seat ring (4) is arranged at one end, far away from the bottom plate (1), of the rotating shaft (5); the inner side of the fan blade (2) is provided with a metal lining plate (3), and the fan blade (2) is connected with a rotating shaft seat ring (4); the rotor (10) is arranged on the other side of the metal lining plate (3), and the stator (9) is arranged on the other side of the protruding part (14) and at a position corresponding to the rotor (10).
2. The vibration-resistant and heat-dissipating fan with the built-in air duct according to claim 1, wherein the rotating shaft seat ring (4) and the rotating shaft (5) are installed through interference fit, and the cylindrical surface of the installation is coated with a cylindrical surface sealing glue layer.
3. The vibration-resistant and heat-dissipating fan with built-in air duct according to claim 1, wherein the fan blades (2) and the rotating shaft seat ring (4) are assembled through a metal lining plate (3) and four sets of bolt nuts (6).
4. A built-in vibration-proof and heat-dissipating fan according to claim 3, further comprising screws (13) for connecting the base plate (1) and the housing (12), the screws (13) being provided with at least four groups.
5. The vibration-proof and heat-dissipating fan with built-in air duct according to claim 1, wherein the base plate (1) is further provided with a control board (11) with PWM function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223169340.6U CN219035059U (en) | 2022-11-29 | 2022-11-29 | Vibration-proof and heat-dissipating fan with built-in air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223169340.6U CN219035059U (en) | 2022-11-29 | 2022-11-29 | Vibration-proof and heat-dissipating fan with built-in air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219035059U true CN219035059U (en) | 2023-05-16 |
Family
ID=86289987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223169340.6U Active CN219035059U (en) | 2022-11-29 | 2022-11-29 | Vibration-proof and heat-dissipating fan with built-in air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219035059U (en) |
-
2022
- 2022-11-29 CN CN202223169340.6U patent/CN219035059U/en active Active
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