CN204003526U - 360 ° of fans of optimizing pneumatic performance - Google Patents
360 ° of fans of optimizing pneumatic performance Download PDFInfo
- Publication number
- CN204003526U CN204003526U CN201420275766.6U CN201420275766U CN204003526U CN 204003526 U CN204003526 U CN 204003526U CN 201420275766 U CN201420275766 U CN 201420275766U CN 204003526 U CN204003526 U CN 204003526U
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- turbine
- blade
- motor
- fans
- ladder
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Abstract
The utility model discloses a kind of 360 ° of fan turbine device of optimizing pneumatic performance, comprise rotating shaft and blade and dull and stereotyped three parts, this turbine is covered by a netted outer cover.In addition, connect in addition rotating shaft, the motor fixing frame of turbine and work drive motor, and pedestal.Blade is along being circumferentially equidistantly arranged in rotating shaft, blade is directly connected with flat board simultaneously, turbine is connected with motor by running shaft, motor correspondence is fixed on motor fixing frame, motor fixing frame is fixed in pedestal, turbine device is improved, that is, with the remodeling of the guide plate of impact-reducing, tooth-shape structure, hierarchic structure three aspects:, improve 360 ° of fan aeroperformances.The utility model device has efficient aeroperformance, and the feature such as low noise.
Description
Technical field
The utility model belongs to fan technical field, relates in particular to a kind of 360 ° of fans of optimizing pneumatic performance.
Background technique
Conventional fan often can only be blown a direction on air-out direction, as axial flow fan.Conventional fan can not guarantee hearsay to be delivered in all orientation.Some fans that occur on the market need to ceaselessly wave, and make each direction have wind, but cannot meet each, all have wind constantly.And common in outward appearance, in the fan market of competition excitation, do not possess noticeable characteristic.
For addressing the above problem, 360 ° of fans have been released on the market.As its name suggests, 360 ° of fans, 360 ° of annular one circles all can blow to wind.Solved each constantly 360 ° without dead angle air-out problem.360 ° of fans not only possess the air-out performance of excellence like this, have again the outward appearance of Greco-Roman Style simultaneously.Fan merges classic and modern feature, can be as being an art work appreciation.Although current 360 ° of fan air-out effects are better, relatively some other fan, air quantity a bit deficient in.And noise is less, but on axial leaf top and leaf top radially etc. leaf top, while rotate due to turbine, cause and ambient gas pulsation cause air-flow unstable, increase rotational noise generation probability.
Therefore, consider above-mentioned analysis, be badly in need of a kind of turbine without blade fan of design, can, under guaranteeing without the whole aeroperformance optimization of blade fan situation, reduce the impacts such as turbine blade ambient gas pressure pulsation and air-flow nonuniformity and rotational noise increase.Also reduced the generation possibility of resonance, and then cause blade possibility tired and fracture to reduce simultaneously.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of 360 ° of fans of optimizing pneumatic performance are provided, and can, in the situation that improving the whole air-out performance of 360 ° of fans, reduce the aerodynamic noise that turbine blade produces.
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of low noise 360 ° of fan turbine device.，
360 ° of fans of a kind of optimizing pneumatic performance of the utility model comprise motor, rotatingshaft, turbine, motor fixing frame and netted outer cover; Netted outer cover, by the whole parcel of turbine, is provided with motor on motor fixing frame, the output shaft of motor is connected with turbine by transmission shaft, and motor, motor fixing frame, rotating shaft are all arranged in pedestal.Described turbine comprises five blades and flat board, blade and dull and stereotyped orthogonal, five blades equidistantly distribute, blade height is consistent with dull and stereotyped diameter, the camber of its Leaf is dull and stereotyped radius 0.2 times, thickness is 4mm.Turbine is provided with flow guide device.
The diversed plate in the dull and stereotyped top and bottom of described turbine covers, position coordinate point on guide plate and shaft axis radial distance 0～20mm, radius of curvature increases to 100 by 20 of guide plate center, position coordinate point on guide plate and shaft axis radial distance 20～60mm, radius of curvature is increased to infinity from 100.
On each blade of described turbine, have 6～16 teeth, axial blade upper top and next top respectively account for half, and each toothing is identical, and profile of tooth is arc-shaped structure, and tooth root and tooth top are rounding off.Tooth depth is set to 2.5～4mm, and tooth pitch is 5～8mm;
All there are two ladders at place, each blade radial leaf top of described turbine, take flat board as symmetry plane symmetrical.Ladder is connected transition with blade be smooth transition.The height of ladder is controlled at 3～6mm, and width is 6～15mm, and the arc length of ladder is 1/8 circumference,
As preferably, ladder height is 4mm, and ladder width is 10mm.Stepped surfaces is circular arc, and it highly radially increases, and by 0, increases to 4mm.The arc length of ladder approximately 1/8 circumference.
The utlity model has following good effect:
Owing to having added guide plate, reduced the impact that air-flow enters turbine portion timesharing, air-flow is more stable entering in runner, air-flow is more steady along radial motion in runner, the pressure pulsation causing still less, had both been played the low noise effect of falling, and air quantity of fan is also improved simultaneously.Because guide plate has covered part rotating shaft and root of blade, make air can not be detained or slow down in rotating shaft around, be conducive to air-flow and more fully along air-out direction, move, improved the air-out efficiency of fan.Also solved the problem of root of blade air low speed.Tooth-shape structure remodeling has been done on the axial leaf of turbine blade top, this structural change during air intake sharf to the pressure distribution state at top, weakened sharf to place, leaf top noise source, be conducive to reduce fan noise.Place, blade radial leaf top has designed hierarchic structure, and because this ladder is on the pressure side of blade, and stepped surfaces band is crooked, drives surrounding atmosphere motion while being beneficial to turbine rotation, has improved Radial Flow speed, improves air-out volume.The remodeling of this structure has reduced the pressure pulsation of blade surface simultaneously, has reduced the generation of rotational noise.
Accompanying drawing explanation
Fig. 1 is 360 ° of fan structure schematic diagram of the utility model;
Fig. 2 is 360 ° of fan turbine prototype structure schematic diagram of the utility model;
Fig. 3 a is the schematic diagram of the first turbine of 360 ° of fan turbine device of the present utility model;
Fig. 3 b is the schematic diagram of the first turbine guide plate of 360 ° of fan turbine device of the present utility model;
Fig. 4 is the schematic diagram of the second turbine of 360 ° of fan turbine device of the present utility model;
Fig. 5 is the schematic diagram of the third turbine of 360 ° of fan turbine device of the present utility model;
Fig. 6 is the specification specified figure of the third turbine of the utility model;
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the purpose of this utility model is for the deficiencies in the prior art, provide a kind of low noise 360 ° of fan turbine device, 360 ° of fans of a kind of optimizing pneumatic performance of the utility model comprise motor 5, rotatingshaft 2, turbine 1, motor fixing frame 7 and netted outer cover 8; Netted outer cover, by the whole parcel of turbine, is provided with motor on motor fixing frame, the output shaft of motor is connected with turbine 1 by transmission shaft, and motor, motor fixing frame, rotating shaft are all arranged in pedestal 4.Described turbine comprises five blades and flat board, blade and dull and stereotyped 3 orthogonal, five blades equidistantly distribute, blade 6 height are consistent with dull and stereotyped diameter, the camber of its Leaf is dull and stereotyped radius 0.2 times, thickness is 4mm.Turbine is provided with flow guide device.
As shown in Figure 3 a, 3 b, the diversed plate in the dull and stereotyped top and bottom of described turbine covers, position coordinate point on guide plate and shaft axis radial distance 0～20mm, radius of curvature increases to 100 by 20 of guide plate center, position coordinate point on guide plate and shaft axis radial distance 20～60mm, radius of curvature is increased to infinity from 100.Its profile line presents streamlined, when reducing axial flow and entering turbine and partly impact, air-flow is directed in runner, and in runner, air-flow, more stably along radial motion, had both played the low noise effect of falling, and air quantity of fan is also improved simultaneously.The radius of curvature of profile line first half section is less, radius of curvature by guide plate center 20 to increment 100.And the second half section owing to pressing close to flat board, tend towards stability, radius of curvature is larger, because parallel with flat board, therefore radius of curvature is increased to infinity by 100.Profile line first half section, near rotating shaft place, plays drainage and reduces impact effect, make can be stable through the gas of turbine from axial flow enter turbine runner.Second half section is the effect of playing steady flow, by air-flow gently stably radial delivery to turbine.
As shown in Figure 4, have 10 teeth on each blade of described turbine, axial blade upper top and next top respectively account for half, and each toothing is identical, and profile of tooth is arc-shaped structure, and tooth root and tooth top are rounding off.Tooth depth is set to 2.5mm, and tooth pitch is 5mm;
The number of teeth too much can cause flow losses, therefore needs to control the number of teeth, and the number of teeth on each blade is controlled within 6 to 16 comparatively desirable.The tooth depth of tooth-shape structure and the facewidth must remain in 4mm, and tooth is too high or wide, easily cause the reduction of blade acting ability, easily make air-flow carry unstable, and flow losses increase.This structural change during air intake sharf to the pressure distribution state of top surface, weakened sharf to place, leaf top noise source, be conducive to fan and reduce noise.
As shown in Figure 5, Figure 6, all there are two ladders at place, each blade radial leaf top of described turbine, take flat board as symmetry plane symmetrical.Ladder is connected transition with blade be smooth transition.Ladder height is 4mm, and ladder width is 10mm.Stepped surfaces is circular arc, and it highly radially increases, and by 0, increases to 4mm.The arc length of each ladder is 1/8 circumference.
Place, blade radial leaf top has designed hierarchic structure.Ladder on sheet can not arrange too much, too much can make air trajectory disorderly, produces more turbine simultaneously, reduces the efficiency of fan, is controlled within 4 as good.Be arranged on herein on each blade and all have two ladders, flat board is each up and down.Ladder is connected transition with blade be smooth transition.
Claims (5)
1. 360 of optimizing pneumatic performance ° of fans comprise motor, rotatingshaft, turbine, motor fixing frame and netted outer cover; Netted outer cover, by the whole parcel of turbine, is provided with motor on motor fixing frame, the output shaft of motor is connected with turbine by transmission shaft, and motor, motor fixing frame, rotating shaft are all arranged in pedestal; It is characterized in that: described turbine comprises five blades and flat board, blade and dull and stereotyped orthogonal, five blades equidistantly distribute, blade height is consistent with dull and stereotyped diameter, the camber of its Leaf is dull and stereotyped radius 0.2 times, thickness is 4mm; Turbine is provided with flow guide device.
2. 360 of optimizing pneumatic performance according to claim 1 ° of fans, it is characterized in that: the diversed plate in the dull and stereotyped top and bottom of described turbine covers, position coordinate point on guide plate and shaft axis radial distance 0～20mm, radius of curvature increases to 100 by 20 of guide plate center, position coordinate point on guide plate and shaft axis radial distance 20～60mm, radius of curvature is increased to infinity from 100.
3. 360 of optimizing pneumatic performance according to claim 1 ° of fans, it is characterized in that: on each blade of described turbine, have 6～16 teeth, axial blade upper top and next top respectively account for half, and each toothing is identical, profile of tooth is arc-shaped structure, and tooth root and tooth top are rounding off; Tooth depth is set to 2.5～4mm, and tooth pitch is 5～8mm.
4. 360 of optimizing pneumatic performance according to claim 1 ° of fans, is characterized in that: all there are two ladders at each place, blade radial leaf top of described turbine, take flat board as symmetry plane symmetrical; Ladder is connected transition with blade be smooth transition; The height of ladder is controlled at 3～6mm, and width is 6～15mm, and the arc length of ladder is 1/8 circumference.
5. 360 of optimizing pneumatic performance according to claim 4 ° of fans, is characterized in that: described ladder is high is 4mm, and ladder width is 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420275766.6U CN204003526U (en) | 2014-05-26 | 2014-05-26 | 360 ° of fans of optimizing pneumatic performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420275766.6U CN204003526U (en) | 2014-05-26 | 2014-05-26 | 360 ° of fans of optimizing pneumatic performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003526U true CN204003526U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420275766.6U Expired - Fee Related CN204003526U (en) | 2014-05-26 | 2014-05-26 | 360 ° of fans of optimizing pneumatic performance |
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| Country | Link |
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| CN (1) | CN204003526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088802A (en) * | 2014-05-26 | 2014-10-08 | 浙江理工大学 | 360-degree fan with optimized pneumatic performance |
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2014
- 2014-05-26 CN CN201420275766.6U patent/CN204003526U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088802A (en) * | 2014-05-26 | 2014-10-08 | 浙江理工大学 | 360-degree fan with optimized pneumatic performance |
| CN104088802B (en) * | 2014-05-26 | 2017-01-04 | 浙江理工大学 | A kind of 360 ° of fans of optimizing pneumatic performance |
| CN106523401A (en) * | 2014-05-26 | 2017-03-22 | 浙江理工大学 | 360-degree fan with optimized aerodynamic performance |
| CN106640700A (en) * | 2014-05-26 | 2017-05-10 | 浙江理工大学 | 360-degree fan with optimized aerodynamic performance |
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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: 20141210 Termination date: 20160526 |