CN103629129A - Fan and fan device - Google Patents
Fan and fan device Download PDFInfo
- Publication number
- CN103629129A CN103629129A CN201310590550.9A CN201310590550A CN103629129A CN 103629129 A CN103629129 A CN 103629129A CN 201310590550 A CN201310590550 A CN 201310590550A CN 103629129 A CN103629129 A CN 103629129A
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- fan
- flabellum
- edge
- wheel hub
- blade inlet
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Abstract
The invention discloses a fan and a fan device. The fan comprises a hub and fan blades which are evenly distributed on the periphery of the hub, wherein each fan blade comprises a blade front edge used for cutting wind, each blade front edge is provided with at least two concave arc-shaped cutting blades which are connected end to end, and an arrow-shaped protruding edge is arranged on the connection portion between the adjacent concave arc-shaped cutting edges. The fan and the fan device can effectively prevent attachment of dust and twining of linear objects such as hair.
Description
Technical field
The present invention relates to radiating equipment technical field, particularly relate to a kind of fan and fan assembly.
Background technique
While working due to electronic unit in numerous equipment, can generate heat in a large number, and electronic unit can not at high temperature work long hours, so need to adopt sink to dispel the heat.The electronic unit that general heating amount is little only needs to dispel the heat with some tinsels, but the large equipment of some heating values need to dispel the heat with fan.Simultaneously because these electronic units may be arranged among the outer container of sealing, therefore must guarantee that fan is good to work steadily in the long term, otherwise will affect performance and the life-span of electronic equipment.But actual environment fan causes the windings such as a lot of dusts or hair to be attached on flabellum because of long-time running, there are abnormal conditions and can not in time " heat " on electronic unit be distributed, just likely cause the damage of electronic unit.
Summary of the invention
Based on this, be necessary for prior art defect, provide a kind of and prevent that dust from adhering to, preventing fan and fan assembly that the threads such as hair are wound around.
Its technological scheme is as follows.
A fan, comprises wheel hub and the flabellum that is distributed in wheel hub periphery, and this flabellum has the blade inlet edge of wind cutting, at least two end-to-end concave arc shape cutting edges of this blade inlet edge setting, and the joint of adjacent concave arc shape cutting edge forms the protruding sword of arrow shaped.
The technical program fan arranges the concave arc shape cutting edge of two or more end-to-ends on the blade inlet edge of wind cutting, and forms the protruding sword of arrow shaped in the joint of adjacent concave arc shape cutting edge.Flabellum is when rotating, and the protruding sword of concave arc shape cutting edge and arrow shaped can form air a plurality of air flues, and dust is flowed along air flue to each different direction, also prevents from that surface that dust is attached to flabellum from forming to gather when taking away dust.Simultaneously, concave arc shape cutting edge, the protruding sword of arrow shaped also can reduce the frictional force of flabellum and air, when flabellum High Rotation Speed, can also cut off as tiny thread objects such as hair, line, silks, prevent that it is wrapped in the normal operation that hinders fan on flabellum or wheel hub simultaneously.
In an embodiment, described flabellum also has the trailing edge corresponding with described blade inlet edge therein, is provided with two or more breach on described trailing edge.Two or more breach are set on trailing edge, when flabellum rotates, can form different air channels and take away dust, the noise in the time of can also reducing fan rotation simultaneously.
Therein in an embodiment, described flabellum comprises the relative lee face in He Yugai windward side, windward side of air blast, on described lee face, along trailing edge, in the direction of blade inlet edge, be provided with and described breach strip groove one to one, this strip groove communicates with described breach.Breach extends to form strip groove along trailing edge towards the direction of blade inlet edge on the lee face of blade, when flabellum rotates, these strip grooves form wind groove at the lee face of flabellum, cause the difference of flabellum lee face surface local blast and air-flow size, thereby when taking away dust, also can prevent that dust is attached to the surface of flabellum.
In an embodiment, described flabellum has and the connecting end of wheel hub connection and the free end corresponding with connecting end therein, and described connecting end, free end all tilt towards the same side with respect to the axis of wheel hub.Connecting end, free end all tilt towards the same side with respect to the axis of wheel hub, make flabellum have larger air blast area.
In an embodiment, described free end is greater than connecting end with respect to the angle of inclination of hub axis with respect to the angle of inclination of the axis of wheel hub therein, every a slice flabellum is had long-pending compared with large working area.
In an embodiment, described flabellum comprises interconnective primary blades and back blades therein, and back blades is connected with wheel hub by primary blades; Take primary blades and back blades is mutually opposite end near one end, described primary blades opposite end is greater than connecting end with respect to the angle of inclination of hub axis with respect to the angle of inclination of the axis of wheel hub, and described free end is greater than back blades with respect to the angle of inclination of hub axis with respect to the angle of inclination of the axis of wheel hub.In the technical program, flabellum comprises primary blades and back blades, and back blades has angle of inclination with respect to primary blades, forms different air-flows and take away dust and prevent from adhering to when fan rotates, and also increases blast volume simultaneously.
Therein in an embodiment, the blade inlet edge of described primary blades arranges the first concave arc shape cutting edge, the blade inlet edge of back blades arranges the second concave arc shape cutting edge, described the first concave arc shape cutting edge and the second concave arc shape cutting edge connection form the protruding sword of arrow shaped, and the protruding sword of this arrow shaped extends to form strip groove along blade inlet edge towards the direction of trailing edge on lee face.
In an embodiment, described breach is arranged on the trailing edge of described back blades therein.
Therein in an embodiment, described flabellum comprises the relative lee face in He Yugai windward side, windward side of air blast, on described lee face, be provided with two or more strip groove, described strip groove is arranged in the direction of blade inlet edge along trailing edge.When flabellum rotates, strip groove forms wind groove at the lee face of flabellum, causes the difference of flabellum lee face surface local blast and air-flow size, thereby when taking away dust, also can prevent that dust is attached to the surface of flabellum.
The technical program also provides a kind of fan assembly, comprises mounting base and is arranged on the fan in mounting base, and this fan is the fan described in above-mentioned any one.
Accompanying drawing explanation
Fig. 1 is the plan view of fan assembly described in the embodiment of the present invention;
Fig. 2 is the worm's eye view of fan assembly described in the embodiment of the present invention;
Fig. 3 is the plan view of flabellum described in the embodiment of the present invention;
Fig. 4 is the front view of flabellum described in the embodiment of the present invention;
Description of reference numerals:
10, mounting base, 20, fan, 30, wheel hub, 40, flabellum, 410, blade inlet edge, 411, concave arc shape cutting edge, 412, the protruding sword of arrow shaped, 420, trailing edge, 421, breach, 422, strip groove, 430, windward side, 440, lee face, 450, primary blades, 460, back blades.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.
Refer to Fig. 1 to 2, fan assembly comprises mounting base 10 and is arranged on the fan 20 in mounting base 10.This fan 20 comprises wheel hub 30 and is distributed in the flabellum 40 of wheel hub 30 peripheries.In mounting base 10, be provided with motor, fan 20 is arranged on the output shaft of motor by wheel hub 30.
Please consider and examine Fig. 3 to 4, this flabellum 40 has the blade inlet edge 410 of wind cutting and the trailing edge 420 corresponding with this blade inlet edge 410.Blade inlet edge 410 is places that whole flabellum 40 contacts air-flow at first, blade inlet edge 410 is met to air-flow and to air-flow and is cut shunting, air blast acceleration is carried out in the windward side 430 that makes part air-flow enter flabellum 40 through blade inlet edge 410, finally from the trailing edge 420 of flabellum 40, flows out.This blade inlet edge 410 arranges at least two end-to-end concave arc shape cutting edges 411, and the joint of adjacent concave arc shape cutting edge 411 forms the protruding sword 412 of arrow shaped.The protruding sword 412 of this arrow shaped extends to form strip groove 422 along blade inlet edge 410 towards the direction of trailing edge 420 on lee face 440.
In the present embodiment, blade inlet edge 410 is provided with the concave arc shape cutting edge 411 of two end-to-ends, and the joint of concave arc shape cutting edge 411 forms the protruding sword 412 of arrow shaped.Flabellum 40 is when rotating, and the protruding sword 412 of concave arc shape cutting edge 411 and arrow shaped can form a plurality of air flues by air, and dust is flowed along air flue to each different direction, also prevents from that surface that dust is attached to flabellum 40 from forming to gather when taking away dust.Simultaneously, concave arc shape cutting edge 411, the protruding sword 412 of arrow shaped also can reduce the frictional force of flabellum 40 and air, when flabellum 40 High Rotation Speed, can also cut off as tiny thread objects such as hair, line, silks, prevent that it is wrapped in the normal operation that hinders fan 20 on flabellum 40 or wheel hub 30 simultaneously.
Refer to Fig. 3, on the trailing edge 420 of flabellum 40, be also provided with two or more breach 421.This breach 421 can be the shapes such as trapezoidal or zigzag fashion, can be on trailing edge 420 integral arrangement or only certain regional area thereon arrange, can on trailing edge 420, be evenly arranged or be arranged or by dredging densely covered putting to dredging by close.Flabellum 40 comprises the windward side 430 of air blast and the lee face 440 relative with this windward side 430,430 pairs of windward sides air-flow promotes to accelerate to make it to form wind, the strip groove 422 that is provided with two or more on lee face 440, strip groove 422 is arranged in the direction of blade inlet edge 410 along trailing edge 420.In the present embodiment, this strip groove 422 is corresponding one by one with breach 421, and strip groove 422 communicates with breach 421.When flabellum rotates, breach 421 can form different air channels and take away dust, the noise in the time of can also reducing fan 20 rotation simultaneously.These strip grooves 422 form wind groove at the lee face 440 of flabellum 40, cause the difference of flabellum 40 lee face 440 surface local blast and air-flow size, thereby when taking away dust, also can prevent that dust is attached to the surface of flabellum 40.
Refer to Fig. 3, flabellum 40 comprises interconnective primary blades 450 and back blades 460, along flabellum 40 connecting ends, primary blades 450 and back blades 460 is being set respectively in free-ended direction, and back blades 460 is connected with wheel hub 30 by primary blades 450.The primary blades 450 of take is opposite end near one end with back blades 460 mutually, and the opposite end of the opposite end of primary blades 450 and back blades 460 is interconnective.Primary blades 450 opposite ends are greater than connecting end with respect to the angle of inclination of wheel hub 30 axis with respect to the angle of inclination of the axis of wheel hub 30, and free end is greater than back blades 460 with respect to the angle of inclination of wheel hub 30 axis with respect to the angle of inclination of the axis of wheel hub 30.Flabellum 40 comprises primary blades 450 and back blades 460, and back blades 460 has angle of inclination with respect to primary blades 450, forms different air-flows and take away dust and prevent from adhering to when fan 20 rotates, and also increases blast volume simultaneously.
The blade inlet edge 410 of primary blades 450 arranges the first concave arc shape cutting edge, the blade inlet edge 410 of back blades 460 arranges the second concave arc shape cutting edge, the first concave arc shape cutting edge and the second concave arc shape cutting edge connection form the protruding sword 412 of arrow shaped, and the protruding sword 412 of this arrow shaped extends to form strip groove 422 along blade inlet edge 410 towards the direction of trailing edge 420 on lee face.Breach 421 is arranged on the trailing edge 420 of back blades 460.Strip groove 422 is corresponding one by one with breach 421, and this strip groove 422 communicates with breach 421.
Below the advantage of the embodiment of the present invention or principle are described.
1, the present embodiment fan 20 arranges the concave arc shape cutting edge 411 of two or more end-to-ends on the blade inlet edge 410 of wind cutting, and forms the protruding sword 412 of arrow shaped in the joint of adjacent concave arc shape cutting edge 411.Flabellum 40 is when rotating, and the protruding sword 412 of concave arc shape cutting edge 411 and arrow shaped can form a plurality of air flues by air, and dust is flowed along air flue to each different direction, also prevents from that surface that dust is attached to flabellum 40 from forming to gather when taking away dust.Simultaneously, concave arc shape cutting edge 411, the protruding sword 412 of arrow shaped also can reduce the frictional force of flabellum 40 and air, when flabellum 40 High Rotation Speed, can also cut off as tiny thread objects such as hair, line, silks, prevent that it is wrapped in the normal operation that hinders fan 20 on flabellum 40 or wheel hub 30 simultaneously.
2, two or more breach 421 are set on trailing edge 420, when flabellum 40 rotates, can form different air channels and take away dust, the noise in the time of can also reducing fan 20 rotation simultaneously.
3, breach 421 extends to form strip groove 422 along trailing edge 420 towards the direction of blade inlet edge 410 on the lee face 440 of flabellum 40, when flabellum 40 rotates, these strip grooves 422 form wind groove at the lee face 440 of flabellum 40, cause the difference of flabellum 40 lee face 440 surface local blast and air-flow size, thereby when taking away dust, also can prevent that dust is attached to the surface of flabellum 40.
4, the connecting end of flabellum 40, free end all tilt towards the same side with respect to the axis of wheel hub, make flabellum have larger air blast area.
The above embodiment has only expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. a fan, comprise wheel hub and the flabellum that is distributed in wheel hub periphery, it is characterized in that, this flabellum has the blade inlet edge of wind cutting, at least two end-to-end concave arc shape cutting edges of this blade inlet edge setting, the joint of adjacent concave arc shape cutting edge forms the protruding sword of arrow shaped.
2. fan according to claim 1, is characterized in that, described flabellum also has the trailing edge corresponding with described blade inlet edge, is provided with two or more breach on described trailing edge.
3. fan according to claim 2, it is characterized in that, described flabellum comprises the relative lee face in He Yugai windward side, windward side of air blast, on described lee face, along trailing edge, in the direction of blade inlet edge, be provided with and described breach strip groove one to one, this strip groove communicates with described breach.
4. according to the fan described in claim 2 or 3, it is characterized in that, described flabellum has and the connecting end of wheel hub connection and the free end corresponding with connecting end, and described connecting end, free end all tilt towards the same side with respect to the axis of wheel hub.
5. fan according to claim 4, is characterized in that, described free end is greater than connecting end with respect to the angle of inclination of hub axis with respect to the angle of inclination of the axis of wheel hub.
6. fan according to claim 4, is characterized in that, described flabellum comprises interconnective primary blades and back blades, and back blades is connected with wheel hub by primary blades; Take primary blades and back blades is mutually opposite end near one end, described primary blades opposite end is greater than connecting end with respect to the angle of inclination of hub axis with respect to the angle of inclination of the axis of wheel hub, and described free end is greater than back blades with respect to the angle of inclination of hub axis with respect to the angle of inclination of the axis of wheel hub.
7. fan according to claim 6, it is characterized in that, the blade inlet edge of described primary blades arranges the first concave arc shape cutting edge, the blade inlet edge of back blades arranges the second concave arc shape cutting edge, described the first concave arc shape cutting edge and the second concave arc shape cutting edge connection form the protruding sword of arrow shaped, and the protruding sword of this arrow shaped extends to form strip groove along blade inlet edge towards the direction of trailing edge on lee face.
8. fan according to claim 7, is characterized in that, described breach is arranged on the trailing edge of described back blades.
9. fan according to claim 1, it is characterized in that, described flabellum comprises the relative lee face in He Yugai windward side, windward side of air blast, on described lee face, be provided with two or more strip groove, described strip groove is arranged in the direction of blade inlet edge along trailing edge.
10. a fan assembly, comprises mounting base and is arranged on the fan in mounting base, and it is characterized in that, this fan is the fan described in the claims 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590550.9A CN103629129A (en) | 2013-11-20 | 2013-11-20 | Fan and fan device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590550.9A CN103629129A (en) | 2013-11-20 | 2013-11-20 | Fan and fan device |
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| Publication Number | Publication Date |
|---|---|
| CN103629129A true CN103629129A (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310590550.9A Pending CN103629129A (en) | 2013-11-20 | 2013-11-20 | Fan and fan device |
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| CN (1) | CN103629129A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106545521A (en) * | 2017-01-16 | 2017-03-29 | 江苏汇创机电科技股份有限公司 | A kind of brshless DC motor noise reduction impeller |
| CN106979175A (en) * | 2016-01-19 | 2017-07-25 | 超众科技股份有限公司 | Composite blade and its heat abstractor |
| CN107013501A (en) * | 2017-02-28 | 2017-08-04 | 西门子公司 | Fan component and driver |
| CN110892160A (en) * | 2018-02-02 | 2020-03-17 | 华为技术有限公司 | Fan and mobile terminal |
| CN111911457A (en) * | 2016-12-28 | 2020-11-10 | 翰昂汽车零部件有限公司 | Axial flow fan |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979175A (en) * | 2016-01-19 | 2017-07-25 | 超众科技股份有限公司 | Composite blade and its heat abstractor |
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| CN106545521A (en) * | 2017-01-16 | 2017-03-29 | 江苏汇创机电科技股份有限公司 | A kind of brshless DC motor noise reduction impeller |
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| CN107013501A (en) * | 2017-02-28 | 2017-08-04 | 西门子公司 | Fan component and driver |
| CN107013501B (en) * | 2017-02-28 | 2019-08-23 | 西门子公司 | Fan component and driver |
| CN110892160A (en) * | 2018-02-02 | 2020-03-17 | 华为技术有限公司 | Fan and mobile terminal |
| CN110892160B (en) * | 2018-02-02 | 2022-02-25 | 华为技术有限公司 | Fan and mobile terminal |
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Application publication date: 20140312 |