CN114521825A - Efficient backward centrifugal moving impeller of dust collector fan - Google Patents
Efficient backward centrifugal moving impeller of dust collector fan Download PDFInfo
- Publication number
- CN114521825A CN114521825A CN202210224019.9A CN202210224019A CN114521825A CN 114521825 A CN114521825 A CN 114521825A CN 202210224019 A CN202210224019 A CN 202210224019A CN 114521825 A CN114521825 A CN 114521825A
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- Prior art keywords
- disc
- arc
- fan
- center
- backward centrifugal
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- 239000000428 dust Substances 0.000 title claims abstract description 27
- 238000005119 centrifugation Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
Abstract
The invention discloses a high-efficiency backward centrifugal movable impeller of a fan of a dust collector, which comprises a front disc, a rear disc, more than two arc-shaped blades and a shaft disc, wherein more than two arc-shaped blades are fixedly arranged between the front disc and the rear disc, the more than two arc-shaped blades are uniformly arranged along the circumferential direction of a central shaft of the front disc, one ends of the arc-shaped blades close to the center of the front disc are provided with oblique planes, one ends of the arc-shaped blades far away from the central axis of the front disc are provided with curved surfaces, an airflow channel is enclosed between the two adjacent arc-shaped blades, the airflow channel is gradually increased from inside to outside, the center of the front disc is provided with an air inlet, the center of the rear disc is provided with a rotating hole, and the shaft disc is fixedly connected in the rotating hole. According to the efficient backward centrifugal movable impeller of the dust collector fan, the inclined plane is formed at one end of the arc-shaped blade, so that the opening of the air inlet of the airflow channel is enlarged, the air inlet amount of the dust collector fan is increased, and the efficiency of the dust collector fan is improved.
Description
Technical Field
The invention relates to the technical field of dust collector fans, in particular to a high-efficiency backward centrifugal impeller of a dust collector fan.
Background
At present, a dust collector as a cleaning product for daily use has been introduced into thousands of households, and the principle of the dust collector is that a fan impeller of the dust collector generates large negative air pressure under the high-speed driving of a motor, so that dust is sucked. However, most of the existing dust collectors are rough in working, and have great defects in research and development design, mainly due to the air flow loss caused by the movable impeller structure, the efficiency of the fan is not high.
Disclosure of Invention
The technical problem to be solved by the invention is that the existing dust collection fan has lower efficiency. In order to overcome the defects of the prior art, the invention provides the high-efficiency backward centrifugal movable impeller of the dust collector fan, one end of the arc-shaped blade is provided with the oblique plane, so that the opening of the air inlet of the airflow channel is enlarged, the air inlet volume of the dust collector fan is increased, and the efficiency of the dust collector fan is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a high-efficiency backward centrifugal movable impeller of a fan of a dust collector, which comprises a front disc, a rear disc, more than two arc-shaped blades and a shaft disc, wherein more than two arc-shaped blades are fixedly arranged between the front disc and the rear disc and are uniformly arranged around the central shaft of the front disc in the circumferential direction, one ends of the arc-shaped blades close to the center of the front disc are provided with oblique planes, one ends of the arc-shaped blades far away from the central shaft line of the front disc are provided with curved surfaces, an airflow channel is enclosed between every two adjacent arc-shaped blades, the airflow channel is gradually increased from inside to outside, the center of the front disc is provided with an air inlet, the center of the rear disc is provided with a rotating hole, and the shaft disc is fixedly connected in the rotating hole.
In a preferred technical scheme of the invention, 7-11 arc-shaped blades are arranged.
In a preferred technical scheme of the invention, an air guide pipe is fixedly arranged on one side of the front disc, which is far away from the arc-shaped blade, and the air guide pipe and the air inlet are coaxially arranged.
In a preferred technical solution of the present invention, one end of the curved surface is aligned with the side surface of the front disc, and the other end of the curved surface is aligned with the side surface of the rear disc.
In a better technical scheme of the invention, one side of the arc-shaped blade, which is close to the center of the front disc, is provided with a first fillet, and the radius of the first fillet is 1.5mm-2 mm.
In a preferred technical scheme of the invention, the diameter of the front disc is 1.5mm-2.5mm larger than that of the rear disc.
In a preferred technical scheme of the invention, a second fillet is formed on one side of the shaft disc close to the front disc, and the radius of the second fillet is 1mm-2 mm.
The invention has the beneficial effects that:
1. according to the invention, the oblique planes and the curved surfaces are arranged at the two ends of the arc-shaped blade, so that the air inlet areas of the air inlet and the air outlet of the airflow channel are increased, the air inlet volume of the dust collection fan is increased, and the efficiency of the dust collection fan is improved.
2. According to the invention, the second fillet is arranged at the corner of the shaft disc, and airflow is transited to the air inlet of the airflow channel through the diffusion effect of the second fillet after entering the dust collection fan, so that the impact of the airflow on the arc-shaped blade can be reduced, and the airflow loss of the air when the air enters the airflow channel is effectively reduced.
Drawings
Fig. 1 is a perspective view of a high-efficiency backward centrifugal impeller of a vacuum cleaner fan according to an embodiment of the present invention;
FIG. 2 is a half sectional view of FIG. 1;
fig. 3 is a schematic view of the airflow of the high efficiency backward centrifugal impeller of the vacuum cleaner fan according to the embodiment of the present invention.
In the figure:
1. a front plate; 2. a rear disc; 3. an arc-shaped blade; 4. a reel; 5. a chamfer plane; 6. an air flow channel; 7. an air inlet; 8. hole turning; 9. an air guide pipe; 10. a curved surface; 11. a first fillet; 12. a second fillet.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1-3, the embodiment provides a high-efficient backward centrifugation movable impeller of dust catcher fan, including front bezel 1, rear bezel 2, arc-shaped blade 3 and reel 4, set firmly more than two arc-shaped blade 3 between front bezel 1 and the rear bezel 2, and more than two arc-shaped blade 3 evenly arrange around the center pin circumference of front bezel 1, the one end that arc-shaped blade 3 is close to front bezel 1 center is provided with scarf 5, the one end that arc-shaped blade 3 keeps away from front bezel 1 axis is provided with curved surface 10, enclose between two adjacent arc-shaped blade 3 has airflow channel 6, airflow channel 6 increases gradually from inside to outside, air intake 7 has been seted up at front bezel 1 center, the turning hole 8 has been seted up at rear bezel 2 center, fixedly connected with reel 4 in the turning hole 8. In this embodiment, the front plate 1 and the rear plate 2 are both circular plates, and the front plate 1 and the rear plate 2 are coaxially disposed. The front disc 1 and the arc-shaped blades 3 are integrally formed, the arc-shaped blades 3 are positioned in an annular area formed by the air inlet 7 and the side surface of the front disc 1, and a certain included angle is formed between the arc-shaped blades 3 and the diameter direction of the front disc 1. The scarf 5 is the plane, and the scarf 5 can increase the air inlet area of airflow channel 6 air intake, and then increases the intake, and curved surface 10 helps increasing the air-out area of airflow channel 6 air outlet, and then increases the air output, and the scarf 5 mutually supports with curved surface 10, increases airflow channel 6's air volume jointly for dust absorption fan's aerodynamic performance is showing and is promoting. The shaft disc 4 is fixed on the rear disc 2 through welding, and a shaft hole for mounting a bearing is formed in the center of the shaft disc 4. The airflow channel 6 is defined by two adjacent arc-shaped blades 6, the front disk 1 and the rear disk 2.
Specifically, 7-11 arc-shaped blades 3 are arranged. In the present embodiment, two adjacent arc-shaped blades 3 are spaced apart by the same distance. The number of the arc-shaped blades 3 is selected according to design requirements, the more the number of the arc-shaped blades 3 is, the smaller the volume of each airflow channel 6 is, the air intake can be correspondingly reduced, and the power of the dust collection fan is reduced.
Specifically, an air guide pipe 9 is fixedly arranged on one side of the front disc 1, which is far away from the arc-shaped blades 3, and the air guide pipe 9 and the air inlet 7 are coaxially arranged. In this embodiment, the air guiding pipe 9 is a tapered structure, and the diameter of the air guiding pipe 9 gradually increases along a direction close to the air inlet 7. In the process that the airflow flows in the air guide pipe 9, the air guide pipe 9 is conical, so that the airflow can be gradually diffused towards two sides, the action area of the airflow is increased, and the impact force on the arc-shaped blade 3 is reduced.
Specifically, one end of the curved surface 10 is aligned with the side surface of the front plate 1, and the other end of the curved surface 10 is aligned with the side surface of the rear plate 2. In the present embodiment, the curved surface 10 is preferably a circular arc surface. The two ends of the curved surface 10 are respectively aligned with the side surfaces of the front disc 1 and the rear disc 2, which is helpful for improving the integrity of the dust suction fan.
Specifically, one side of the arc-shaped blade 3 close to the center of the front disc 1 is provided with a first fillet 11, and the radius of the first fillet 11 is 1.5mm-2 mm. In this embodiment, through seting up first radius angle 11 in 3 one ends of arc blade for arc blade 3 diminishes at the cross section that is close to 6 air intake one ends of airflow channel, and then can reduce the area of contact of arc blade 3 and air current, reduces the air current and to arc blade 3's impact force, improves arc blade 3's life.
Specifically, the diameter of the front disk 1 is 1.5mm-2.5mm larger than the diameter of the rear disk 2. Through the reasonable design to R1, R2, can further promote fan efficiency, reduce the air loss.
Specifically, a second fillet 12 is formed on one side of the shaft disc 4 close to the front disc 1, and the radius of the second fillet 12 is 1mm-2 mm. Second radius angle 12 is seted up in the corner of reel 4, and second radius angle 12 is the concave type cambered surface, and after the air current passed through air inlet 6 and got into dust absorption fan, the diffusion effect through second radius angle 14 transited gradually to airflow channel 6's air intake department, and then can reduce the impact of air current to arcuate blade 3, effectively reduces the air loss of gas before getting into airflow channel 6.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (7)
1. The utility model provides a high-efficient backward centrifugation movable vane wheel of dust catcher fan which characterized in that: including preceding dish (1), after-disc (2), arc blade (3) and reel (4), arc blade (3) more than two have set firmly between preceding dish (1) and after-disc (2), and arc blade (3) more than two evenly arrange around the center pin circumference of preceding dish (1), arc blade (3) are provided with scarf (5) near the one end at preceding dish (1) center, the one end that arc blade (3) kept away from preceding dish (1) axis is provided with curved surface (10), it has airflow channel (6) to enclose between two adjacent arc blade (3), airflow channel (6) is crescent from inside to outside, air intake (7) have been seted up at preceding dish (1) center, commentaries on classics hole (8) have been seted up at after-disc (2) center, fixedly connected with reel (4) in commentaries on classics hole (8).
2. The efficient backward centrifugal impeller of a vacuum cleaner fan as claimed in claim 1, wherein: the number of the arc-shaped blades (3) is 7-11.
3. The efficient backward centrifugal impeller of a vacuum cleaner fan as claimed in claim 1, wherein: and an air guide pipe (9) is fixedly arranged on one side of the front disc (1) far away from the arc-shaped blade (3), and the air guide pipe (9) and the air inlet (7) are coaxially arranged.
4. The efficient backward centrifugal impeller of a vacuum cleaner fan as claimed in claim 1, wherein: one end of the curved surface (10) is aligned with the side surface of the front disc (1), and the other end of the curved surface (10) is aligned with the side surface of the rear disc (2).
5. The efficient backward centrifugal impeller of a vacuum cleaner fan as claimed in claim 1, wherein: a first fillet (11) is formed in one side, close to the center of the front disc (1), of the arc-shaped blade (3), and the radius of the first fillet (11) is 1.5mm-2 mm.
6. The efficient backward centrifugal impeller of a vacuum cleaner fan as claimed in claim 1, wherein: the diameter of the front disc (1) is 1.5-2.5 mm larger than that of the rear disc (2).
7. The efficient backward centrifugal impeller of a vacuum cleaner fan as claimed in claim 1, wherein: and a second fillet (12) is formed in one side, close to the front disc (1), of the shaft disc (4), and the radius of the second fillet (12) is 1-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210224019.9A CN114521825A (en) | 2022-03-07 | 2022-03-07 | Efficient backward centrifugal moving impeller of dust collector fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210224019.9A CN114521825A (en) | 2022-03-07 | 2022-03-07 | Efficient backward centrifugal moving impeller of dust collector fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114521825A true CN114521825A (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210224019.9A Pending CN114521825A (en) | 2022-03-07 | 2022-03-07 | Efficient backward centrifugal moving impeller of dust collector fan |
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| CN (1) | CN114521825A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454637A (en) * | 2014-11-13 | 2015-03-25 | 中国北车集团大连机车研究所有限公司 | Low-noise centrifugal fan impeller for high-speed electric multiple unit cooling system |
| CN205078495U (en) * | 2015-09-08 | 2016-03-09 | 天津尼特风机有限公司 | Impeller structure |
| CN209115390U (en) * | 2018-08-01 | 2019-07-16 | 苏州工业园区星德胜电机有限公司 | A kind of efficient movable vane wheel used for electric engine of cleaner |
| CN211009266U (en) * | 2019-11-06 | 2020-07-14 | 重庆沃亚机械有限公司 | High-efficiency fan impeller with arc-shaped front disc |
| CN211715397U (en) * | 2020-02-28 | 2020-10-20 | 东莞市国通通风设备有限公司 | Impeller of ventilator |
| CN113175443A (en) * | 2021-06-01 | 2021-07-27 | 雷勃电气(嘉兴)有限公司 | Efficient low-noise three-dimensional flow impeller of backward centrifugal fan without volute |
-
2022
- 2022-03-07 CN CN202210224019.9A patent/CN114521825A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454637A (en) * | 2014-11-13 | 2015-03-25 | 中国北车集团大连机车研究所有限公司 | Low-noise centrifugal fan impeller for high-speed electric multiple unit cooling system |
| CN205078495U (en) * | 2015-09-08 | 2016-03-09 | 天津尼特风机有限公司 | Impeller structure |
| CN209115390U (en) * | 2018-08-01 | 2019-07-16 | 苏州工业园区星德胜电机有限公司 | A kind of efficient movable vane wheel used for electric engine of cleaner |
| CN211009266U (en) * | 2019-11-06 | 2020-07-14 | 重庆沃亚机械有限公司 | High-efficiency fan impeller with arc-shaped front disc |
| CN211715397U (en) * | 2020-02-28 | 2020-10-20 | 东莞市国通通风设备有限公司 | Impeller of ventilator |
| CN113175443A (en) * | 2021-06-01 | 2021-07-27 | 雷勃电气(嘉兴)有限公司 | Efficient low-noise three-dimensional flow impeller of backward centrifugal fan without volute |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220524 |
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| RJ01 | Rejection of invention patent application after publication |