CN217950805U - Dustproof construction of fan and fan thereof - Google Patents
Dustproof construction of fan and fan thereof Download PDFInfo
- Publication number
- CN217950805U CN217950805U CN202222119231.7U CN202222119231U CN217950805U CN 217950805 U CN217950805 U CN 217950805U CN 202222119231 U CN202222119231 U CN 202222119231U CN 217950805 U CN217950805 U CN 217950805U
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- Prior art keywords
- fan
- bearing sleeve
- bearing
- sleeve
- cover
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- 238000010276 construction Methods 0.000 title claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 17
- 241000883990 Flabellum Species 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a dustproof construction of fan and fan thereof, a dustproof construction of fan, including bearing sleeve, but the axle core and the riveting cover of rotational positioning in bearing sleeve, the riveting cover is equipped with axially extended linkage segment, and the linkage segment location is in bearing sleeve, and the outer wall of linkage segment or bearing sleeve inner tube wall are equipped with the helicla flute. A fan comprises the dustproof structure in any one of the technical schemes. The utility model provides a dustproof construction of fan and fan thereof through the rotation of helicla flute, forms high nip and low-pressure area at bearing sleeve, makes the dust can not get into the intraductal high nip of bearing sleeve from the low-pressure area of bearing sleeve outside of tubes, plays spiral seal's effect, has prolonged bearing life.
Description
Technical Field
The utility model belongs to the technical field of the cooling fan technique and specifically relates to a dustproof construction of fan and fan thereof.
Background
The cooling fan generates a rotating magnetic field through the stator winding to drive the rotor to rotate, and the rotor drives the fan blades connected with the rotor to rotate to supply air. The fan blades can rotate in the stator winding through the shaft core, the stator winding is provided with a bearing copper sleeve, and the shaft core penetrates into the bearing copper sleeve and is in running fit with the bearing copper sleeve through a bearing. During the operation of the fan, dust is easy to enter from the gap between the shaft core and the bearing copper sleeve and is accumulated for a long time, so that the friction between the shaft core and the port part of the bearing copper sleeve is increased, and the efficiency of the fan is influenced; dust enters the bearing gap inside the copper sleeve, and the service life of the bearing is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dustproof construction of fan and fan thereof, through the rotation of helicla flute, form high nip and low-pressure area at the bearing sleeve tip, make the dust can not get into the high nip in the bearing sleeve from the low-pressure area outside the bearing sleeve, play spiral seal's effect, prolonged bearing life.
In order to solve the technical problem, the utility model provides a technical scheme is: the utility model provides a dustproof construction of fan, includes the bearing sleeve pipe, but the axle core and the riveting cover of rotational positioning in the bearing sleeve pipe, and the riveting cover is equipped with axially extended linkage segment, and the linkage segment location is in the bearing sleeve pipe, and linkage segment outer wall or bearing sleeve intraductal wall are equipped with the helicla flute.
The utility model discloses an above-mentioned technical scheme, through the setting of helicla flute, the axle core is when rotatory, it is rotatory to drive the riveting cover, the helicla flute drives air on every side in the rotation, perhaps set up the helicla flute through at the bearing sleeve pipe inner wall, when the axle core is rotatory, the linkage segment drives the air flow between linkage segment and the bearing sleeve pipe inner wall in the rotation, make the pressure that the intraductal air flow of bearing sleeve produced be greater than the outside gas pressure of bearing sleeve pipe, form high nip and low-pressure area, dust can not enter into the bearing sleeve pipe in the operation process, thereby realize spiral seal, the life of extension bearing. When the fan is used, the shaft core and the riveting sleeve are used for connecting the fan blades, and the fan blades are driven by the motor to rotate to supply air.
In the dustproof structure of the fan, the bearing of the positioning shaft core is arranged in the bearing sleeve.
The spiral groove of the dustproof structure of the fan is matched with the rotation direction of the shaft core. The spiral groove is matched with the rotation direction of the shaft core, and when the spiral groove drives the peripheral air of the spiral groove to flow to form fluid pressure, the pressure in the bearing sleeve is larger than the pressure outside the bearing sleeve, so that the spiral sealing effect is realized.
In the dustproof structure of the fan, the spiral groove extends outwards in an axial spiral manner. The spiral groove extends axially outwards, so that when the shaft core rotates, airflow flowing towards the outside is formed, and dust cannot enter the bearing sleeve.
In the dustproof structure of the fan, the bottom of the bearing sleeve is provided with an inner groove, and a sealing cover is arranged in the inner groove. The sealed lid is arranged in sealed bearing sleeve's bottom, prevents that the dust from getting into bearing sleeve from the bottom, and sealed lid installation sets up on the inner groove.
In the dustproof structure of the fan, the spring is arranged between the connecting section and the bearing. The spring is used for balancing the distance between the riveting sleeve and the bearing and limiting the axial movement of the shaft core.
In the dustproof structure of the fan, the riveting sleeve is a riveting copper sleeve.
The utility model discloses still provide another technical scheme and be: a fan comprises the dustproof structure in any one of the technical schemes.
Foretell fan, including the casing, locate stator winding in the casing, the rotor of cover establishing in stator winding periphery and with the flabellum cover that the riveting cover is connected, bearing sleeve establishes in stator winding, the inboard at the flabellum cover is fixed to the rotor, the flabellum cover passes through rotor rotatable positioning in stator cover group periphery, flabellum cover periphery distributes and has the flabellum. When the bearing is in operation, the stator winding is electrified to generate a rotating magnetic field to drive the rotor to rotate, and the rotor drives the fan blades to rotate to supply air, wherein due to the design of the dustproof structure, dust cannot enter the bearing sleeve.
The fan is characterized in that a channel is arranged in the shell, guide vanes are arranged in the channel in an annular mode, the outer ends of the guide vanes are fixedly connected with the shell, the inner ends of the guide vanes are fixedly connected with the base, and the bearing sleeve is fixed on the base.
The utility model discloses the beneficial effect who gains is: by arranging the spiral groove, dynamic spiral sealing is formed in rotation, a high-pressure area is formed inside the bearing sleeve and a low-pressure area is formed outside the bearing sleeve at the end part of the bearing sleeve, so that dust cannot enter the high-pressure area inside the bearing sleeve from the low-pressure area outside the bearing sleeve, the spiral sealing effect is achieved, and the dust is effectively prevented from entering the high-pressure area; long-time operation is realized, and the long-life service of the bearing is ensured.
Drawings
Fig. 1 is a schematic view of an appearance structure of a fan applied to the fan according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure view of the blower of fig. 1 according to the embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a dustproof structure according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a riveting sleeve of a dustproof structure according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a dustproof structure applied to a wind housing of a wind turbine according to an embodiment of the present invention;
fig. 6 is a schematic sectional structure view of the casing of the blower according to fig. 5.
Description of reference numerals: the structure comprises a bearing sleeve 1, a bearing 11, an inner groove 12, a sealing cover 13, a spring 14, a shaft core 2, a riveting sleeve 21, a connecting section 22, a spiral groove 23, a shell 3, a rib 31, a base 32, a channel 33, a stator winding 4, a rotor 5, a fan blade 6 and a fan blade sleeve 7.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 6, a dustproof structure of a blower fan comprises a bearing sleeve 1, a shaft core 2 and a riveting sleeve 21 which are rotatably positioned in the bearing sleeve 1, wherein the riveting sleeve 21 is provided with a connecting section 22 extending axially, the connecting section 22 is positioned in the bearing sleeve 1, and the outer wall surface of the connecting section 22 or the inner wall surface of the bearing sleeve 1 is provided with a spiral groove 23.
In the present embodiment, the bearing sleeve 1 is provided with a bearing 11 for positioning the shaft core 2. The riveting sleeve 21 is a riveting copper sleeve.
In the rotation process of the shaft core 2, the spiral groove 23 rotates to drive peripheral air to flow, air flow is formed, a high pressure area H is formed in the inner pipe wall of the bearing sleeve 1, a low pressure area L is formed in a gap between the end part of the bearing sleeve 1 and the riveting sleeve 21, a pressure difference is formed between the high pressure area H and the low pressure area L, and dust outside the bearing sleeve 1 meets the resistance of the high pressure area H and cannot enter the bearing sleeve 1, so that the spiral sealing effect is realized.
The spiral groove 23 is adapted to the rotation direction of the shaft core 2. The helical groove 23 extends outward in an axial spiral. As shown in fig. 4, the spiral groove 23 is arranged along the radially outer periphery of the connecting section 22, spiraling in the axial direction. When the bearing sleeve 1 rotates, air around the spiral groove 23 is driven to swirl, so that air flow in a gap between the riveting sleeve 21 and the pipe wall of the bearing sleeve 1 moves to form a high-pressure area H inside the bearing sleeve 1 and a low-pressure area L at the pipe orifice of the bearing sleeve 1, and the purpose of blocking dust from entering is achieved.
The bottom of the bearing sleeve 1 is provided with an inner groove 12, and a sealing cover 13 is arranged in the inner groove 12. A spring 14 is arranged between the connecting section 22 and the bearing 11.
Further referring to fig. 1 to 6, a fan includes the dust-proof structure according to the above-mentioned embodiments.
Including casing 3, locate stator winding 4 in the casing 3, the flabellum cover 7 that the cover was established at rotor 5 of stator winding 4 periphery and was connected with riveting cover 21, bearing sleeve 1 is established in stator winding 4, and rotor 5 is fixed in the inboard of flabellum cover 7, and flabellum cover 7 passes through rotor 5 rotatable positioning in stator cover 4 periphery, and flabellum cover 7 periphery distributes and has flabellum 6.
A channel 33 is arranged in the housing 3, guide vanes 31 are arranged in the channel 33 in an annular shape, the outer ends of the guide vanes 31 are fixedly connected with the housing 3, the inner ends of the guide vanes are fixedly connected with a base 32, and the bearing sleeve 1 is fixed on the base 32.
In summary, the present invention has been made to practical samples according to the description and the drawings, and after a plurality of use tests, the utility model can be proved to achieve the expected purpose, and the practical value is undoubted. The above-mentioned embodiments are only used to conveniently illustrate the present invention, and are not to the limit of the present invention in any form, and any person who knows commonly in the technical field has, if not in the scope of the technical features of the present invention, utilize the present invention to make the equivalent embodiment of local change or modification, and not to break away from the technical features of the present invention, and all still belong to the technical features of the present invention.
Claims (10)
1. The utility model provides a dustproof construction of fan, includes bearing housing (1), axle core (2) and riveting cover (21) of rotatable positioning in bearing housing (1), its characterized in that: the riveting sleeve (21) is provided with a connecting section (22) extending axially, the connecting section (22) is positioned in the bearing sleeve (1), and the outer wall surface of the connecting section (22) or the inner wall surface of the bearing sleeve (1) is provided with a spiral groove (23).
2. The dustproof structure of the blower according to claim 1, wherein: a bearing (11) for positioning the shaft core (2) is arranged in the bearing sleeve (1).
3. The dustproof structure of a fan according to claim 1, wherein: the spiral groove (23) is matched with the rotation direction of the shaft core (2).
4. The dustproof structure of a fan according to claim 1, wherein: the spiral groove (23) extends outwards in an axial spiral manner.
5. The dustproof structure of a fan according to claim 1, wherein: an inner groove (12) is arranged at the bottom of the bearing sleeve (1), and a sealing cover (13) is arranged in the inner groove (12).
6. The dustproof structure of the blower according to claim 1, wherein: a spring (14) is arranged between the connecting section (22) and the bearing (11).
7. The dustproof structure of the blower according to claim 1, wherein: the riveting sleeve (21) is a riveting copper sleeve.
8. A fan, its characterized in that: comprising the dust-proof structure of any one of claims 1 to 7.
9. The fan of claim 8, wherein: including casing (3), locate stator winding (4) in casing (3), the flabellum cover (7) of establishing rotor (5) and being connected with riveting cover (21) in stator winding (4) periphery at, bearing sleeve (1) is established in stator winding (4), and the inboard at flabellum cover (7) is fixed in rotor (5), and flabellum cover (7) pass through rotor (5) rotatable positioning in stator winding (4) periphery, and flabellum cover (7) periphery distributes and has flabellum (6).
10. The fan of claim 8, wherein: a channel (33) is arranged in the shell (3), guide vanes (31) are annularly arranged in the channel (33), the outer ends of the guide vanes (31) are fixedly connected with the shell (3), the inner ends of the guide vanes are fixedly connected with a base (32), and the bearing sleeve (1) is fixed on the base (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222119231.7U CN217950805U (en) | 2022-08-11 | 2022-08-11 | Dustproof construction of fan and fan thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222119231.7U CN217950805U (en) | 2022-08-11 | 2022-08-11 | Dustproof construction of fan and fan thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217950805U true CN217950805U (en) | 2022-12-02 |
Family
ID=84226460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222119231.7U Active CN217950805U (en) | 2022-08-11 | 2022-08-11 | Dustproof construction of fan and fan thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217950805U (en) |
-
2022
- 2022-08-11 CN CN202222119231.7U patent/CN217950805U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Building 1, No. 10 Chuangxin Road, Jindu Town, Gaoyao District, Zhaoqing City, Guangdong Province, 526100 Patentee after: Guangdong Shenghui Technology Co.,Ltd. Country or region after: China Address before: 526000 No.2 factory building of an village, Yaonan 1st Road, Nan'an District, Gaoyao District, Zhaoqing City, Guangdong Province Patentee before: ZHAOQING SHENGHUI ELECTRONIC TECHNOLOGY Co.,Ltd. Country or region before: China |