CN205714934U - A kind of brushless fan bleed type wind wheel - Google Patents
A kind of brushless fan bleed type wind wheel Download PDFInfo
- Publication number
- CN205714934U CN205714934U CN201620421410.8U CN201620421410U CN205714934U CN 205714934 U CN205714934 U CN 205714934U CN 201620421410 U CN201620421410 U CN 201620421410U CN 205714934 U CN205714934 U CN 205714934U
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- China
- Prior art keywords
- blade
- outer ring
- wind wheel
- brushless fan
- type wind
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Abstract
The utility model discloses a kind of brushless fan bleed type wind wheel, belong to blower fan field, solve the technical problem that existing fan performance is not enough, the brushless fan bleed type wind wheel that this utility model provides includes inner wheel hub, outer ring, is arranged between inner wheel hub and outer ring the more blades in radiation, blade include by inner wheel hub circumferentially extending go out blade root, extended and the blade tip that circumferentially bends towards outer ring by blade root end, the width of blade tip is the widest towards direction, outer ring by blade root, and blade has towards the concave surface within brushless fan.
Description
[technical field]
This utility model relates to a kind of brushless fan bleed type wind wheel.
[background technology]
Fan blade performance study and performance boost are the developing direction of fan blade, and market proposes more to come for the performance indications of blower fan
The highest requirement, air quantity, wind speed, efficiency, noise are four important indicators therein, and the quality of fan blade design is to determine these four
Important indicator reaches the key factor of quality.
[utility model content]
This utility model solves the technical problem that and is to provide a kind of brushless fan bleed type wind wheel, improves blowing performance.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of brushless fan bleed type wind wheel, including inner wheel hub, outer ring, is arranged between inner wheel hub and outer ring in radiation
More blades, described blade include by inner wheel hub circumferentially extending go out blade root, by blade root end towards outer ring extend and circumferentially bend
Blade tip, the width of described blade tip is the widest towards direction, outer ring by blade root, and described blade has towards the concave surface within brushless fan.
Further, the windup-degree A of described blade meets below equation:
Wherein, R1 is the length of blade, and R2 is the radius of inner wheel hub, and H is blade height.
Further, described blade root is connected one end and is provided with thickening part with inner wheel hub, and described thickening part thickness is (1.1-
1.2) * vane thickness.
Further, if being provided with dry elasticity dowel between described blade and outer ring.
Further, the width of described elastic dowel is 2mm-4mm.
Further, the spacing between described elastic dowel is 12mm-18mm.
Further, described wind wheel also includes balance weight mechanism.
Further, described balance weight mechanism includes balancing weight, described outer ring circumferentially arranged with some for installing balancing weight
Mounting groove；Or, described balance weight mechanism include install set and balance weight body, described installation put be provided with some for installing counterweight
The fitting recess of body, described outer ring is installed described installation and overlaps.
Further, the inwall of described outer ring is provided with between adjacent described blade the spiral shell arranged along blade twist direction
Spin slot.
Further, described inner wheel hub, outer ring and blade are one-body molded.
The beneficial effects of the utility model:
Brushless fan bleed type wind wheel of the present utility model, blade include by inner wheel hub circumference and extend blade root, by
The blade tip that blade root end extends towards outer ring and circumferentially bends, the width of blade tip is the widest towards direction, outer ring by blade root, and blade has
Towards the concave surface within brushless fan.By blade construction optimization, meeting aerodynamic, blade is arranged inside brushless fan
Concave surface can strengthen wind-force, improve efficiency；And blade tip width is big, adds the area of blade, enhance the blowing capacity of wind wheel,
Effectively promote with the fan delivery under dimensions.
These features of the present utility model and advantage will be detailed in following detailed description of the invention, accompanying drawing exposure.
[accompanying drawing explanation]
Below in conjunction with the accompanying drawings this utility model is described further:
Fig. 1 is the front view of this utility model wind wheel；
Fig. 2 is the upward view of Fig. 1；
Fig. 3 is the structural representation one of this utility model wind wheel；
Fig. 4 is the structural representation two of this utility model wind wheel.
[detailed description of the invention]
Below in conjunction with the accompanying drawing of this utility model embodiment the technical scheme of this utility model embodiment explained and
Illustrate, but following embodiment is only preferred embodiment of the present utility model, and not all.Based on the enforcement in embodiment
Example, those skilled in the art are obtained other embodiments on the premise of not making creative work, broadly falls into this practicality new
The protection domain of type.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, shown a kind of brushless fan bleed type wind wheel, including inner wheel hub 1, outer ring 3,
It is arranged between inner wheel hub 1 and outer ring 3 more blades 2 in radiation, the driving assembly of connecting fan, driving group on inner wheel hub 1
Part drives wind wheel to rotate, and blade 2 includes the blade root 21 by inner wheel hub 1 circumference and extended, extended towards outer ring 3 by blade root 21 end
And the blade tip 22 circumferentially bent, the width of blade tip 22 is the widest towards direction, outer ring 3 by blade root 21, and blade 2 has towards brushless wind
Concave surface 23 within machine.Thus by blade 2 structure optimization, meeting aerodynamic, blade 2 is arranged towards within brushless fan
Concave surface 23 can strengthen wind-force, improves efficiency；And blade tip 22 width is big, adds the area of blade 2, enhance the blowing energy of wind wheel
Power, effectively promotes with the fan delivery under dimensions, and can improve air quantity and wind-force, the preferably angle of bend of blade tip 22 is
10°-15°。
In this utility model, the windup-degree A of blade 2 meets below equation:
Wherein, R1For the length of blade 2, R2For the radius of inner wheel hub 1, H is blade 2 height；And minimum 10 ° of A, A are maximum
It it is 50 °.Blade 22 reverses certain angle, and blade 22 windup-degree depends on the length with blade 22, the radius of inner wheel hub 11 and leaf
Sheet 22 height, aerodynamic condition of more fitting, it is possible to reducing the generation of blade 22 eddy current, the flowing of wind is more smooth and easy, the resistance of blowing
Little, wind-force is strong and stable.
Being connected one end blade root 21 with inner wheel hub 1 and be provided with thickening part 4, thickening part 4 thickness is (1.1-1.2) * vane thickness,
Increased the intensity of blade root 21 and inner wheel hub 1 junction by thickening part 4, thickening part 4 protrudes from the two sides of blade 2, and thickeies
It is provided with inclined-plane in portion 4.
If being provided with dry elasticity dowel between blade and outer ring.Blade is connected by elastic dowel with outer ring.Arrange
Elastic dowel can reduce the weight of blade, and can reduce the stress of blade and tired by the gap between elasticity dowel
Labor load, and elastic dowel has deformability, and elastic deformation energy buffering reduces the vibrations of impeller.
Preferably, the width of elastic dowel is 2mm-4mm.If elastic dowel width is too big, it is unlikely to deform, buffering
Cushioning ability is weak, and if elastic dowel width is the least, intensity is not enough, can not get service life ensureing.It addition, adjacent spring company
Connecing the spacing between muscle is 8mm-15mm, is equally used for guaranteeing that blade has good elastic deformability and reliable intensity.
Wherein, inner wheel hub, outer ring and blade are one-body molded, easy to process, and precision is high.
Due to the error manufactured or processing produces, the center of gravity of impeller may deviate the rotation axis of impeller, so can
Cause the noise in impeller rotary course big, and impeller obliquity effects fan efficiency.Therefore this wind wheel also includes counter weight machine
Structure, by the center of gravity adjusting impeller of balance weight mechanism, makes the center of gravity of impeller and the rotation axis coincident of impeller, so that wheel rotation
Stable, shake little, noise is the least.
Preferably, balance weight mechanism includes that balancing weight, outer ring are provided with the mounting groove for installing balancing weight, in impeller center of gravity
During deviation impeller middle spindle, outer ring is positioned in the mounting groove of position, impeller lighter side installation balancing weight, so that impeller is all
Uniform to Mass Distribution, thus ensure the center of gravity central shaft without departing from impeller of impeller, the rotation of impeller is more stable, drops impeller
Vibration during work and noise, extend the service life of blower fan.In other embodiments of the present utility model, balance weight mechanism also may be used
Including installing set and balance weight body, set installed by the periphery card dress of outer ring, installs and puts the fitting recess being provided with for installing balance weight body,
Set is installed and is positioned at installation balancing weight in the fitting recess of position, impeller lighter side.
Further, the inwall of outer ring is provided with between adjacent blades the helicla flute arranged along blade twist direction, helicla flute
There is drainage, reduce resistance further, reduce the vibrations of impeller, reduce noise.
By above-described embodiment, the purpose of this utility model is reached by fully effective.It is familiar with this technology
Personage should be understood that this utility model includes but not limited to accompanying drawing and content described in detailed description of the invention above.Any the most inclined
Amendment from function of the present utility model and structural principle is intended to be included in the scope of claims.
Claims (9)
1. a brushless fan bleed type wind wheel, including inner wheel hub, outer ring, be arranged between inner wheel hub and outer ring in radiation many
Sheet blade, it is characterised in that described blade include by inner wheel hub circumferentially extending go out blade root, by blade root end towards outer ring extend and edge
The blade tip of circumferential skewing, the width of described blade tip is the widest towards direction, outer ring by blade root, and described blade has in brushless fan
The concave surface in portion, the windup-degree A of described blade meets below equation:
Wherein, R1For the length of blade, R2For the radius of inner wheel hub, H is blade height.
2. brushless fan bleed type wind wheel as claimed in claim 1, it is characterised in that: described blade root is connected one end with inner wheel hub
Being provided with thickening part, described thickening part thickness is (1.1-1.2) * vane thickness.
3. brushless fan bleed type wind wheel as claimed in claim 1 or 2, it is characterised in that: set between described blade and outer ring
If there being dry elasticity dowel.
4. brushless fan bleed type wind wheel as claimed in claim 3, it is characterised in that: the width of described elastic dowel is
2mm-4mm。
5. brushless fan bleed type wind wheel as claimed in claim 4, it is characterised in that: the spacing between described elastic dowel
For 12mm-18mm.
6. brushless fan bleed type wind wheel as claimed in claim 1 or 2, it is characterised in that: described wind wheel also includes counter weight machine
Structure.
7. brushless fan bleed type wind wheel as claimed in claim 6, it is characterised in that: described balance weight mechanism includes balancing weight,
Described outer ring is circumferentially arranged with some mounting grooves for installing balancing weight；Or, described balance weight mechanism includes installing set and joining
Weight body, described installation puts and is provided with some fitting recess for installing balance weight body, described outer ring is installed described installation and overlaps.
8. brushless fan bleed type wind wheel as claimed in claim 1 or 2, it is characterised in that: the inwall of described outer ring is provided with position
The helicla flute arranged along blade twist direction between adjacent described blade.
9. brushless fan bleed type wind wheel as claimed in claim 1 or 2, it is characterised in that: described inner wheel hub, outer ring and blade
One-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421410.8U CN205714934U (en) | 2016-05-06 | 2016-05-06 | A kind of brushless fan bleed type wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421410.8U CN205714934U (en) | 2016-05-06 | 2016-05-06 | A kind of brushless fan bleed type wind wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714934U true CN205714934U (en) | 2016-11-23 |
Family
ID=57304814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620421410.8U Expired - Fee Related CN205714934U (en) | 2016-05-06 | 2016-05-06 | A kind of brushless fan bleed type wind wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205714934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782111A (en) * | 2016-05-06 | 2016-07-20 | 浙江希尔富电气有限公司 | Blowing type wind wheel of brushless fan |
| CN105805045A (en) * | 2016-05-06 | 2016-07-27 | 浙江希尔富电气有限公司 | Air sucking type wind wheel of brushless draught fan |
-
2016
- 2016-05-06 CN CN201620421410.8U patent/CN205714934U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782111A (en) * | 2016-05-06 | 2016-07-20 | 浙江希尔富电气有限公司 | Blowing type wind wheel of brushless fan |
| CN105805045A (en) * | 2016-05-06 | 2016-07-27 | 浙江希尔富电气有限公司 | Air sucking type wind wheel of brushless draught fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20200506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |