CN104214136A - Fan and electronic equipment - Google Patents
Fan and electronic equipment Download PDFInfo
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- CN104214136A CN104214136A CN201310217490.6A CN201310217490A CN104214136A CN 104214136 A CN104214136 A CN 104214136A CN 201310217490 A CN201310217490 A CN 201310217490A CN 104214136 A CN104214136 A CN 104214136A
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- fan
- fan blade
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- angle
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Abstract
The invention discloses a fan and electronic equipment. The technical problem that the noise of a fan in the prior art is too large is solved. The fan comprises a base, a stator and an impeller. The stator is fixedly arranged on the surface of the base. The impeller is rotatably arranged on the periphery of the stator and comprises at least two fan blades including a first fan blade and a second fan blade, and the first fan blade and the second fan blade are different in structure. Due to the fact that the impeller comprises the two fan blades different in structure, the frequency spectrum of sound waves of the noise of the fan is partially offset and is distributed within the wider range, the peak value of the sound waves under the single frequency spectrum is lowered, and then the technical effect of lowering the fan noise is achieved.
Description
Technical field
The present invention relates to field of mechanical technique, particularly a kind of fan and electronic equipment.
Background technique
Along with the development of science and technology, electronic technology have also been obtained development at full speed, and then also creates increasing electronic equipment, such as: panel computer, notebook computer, integrated machine etc.And the growth gradually of Processing capacity along with these electronic equipments, its power consumption also increases gradually, so its heat produced also increases thereupon, in order to prevent because heat up the loss brought to electronic equipment, a lot of electronic equipment all has sink, such as: radiation fan, radiating fin etc., by these sinks can fast by the heat conduction of electronic equipment to environment, and then play the effect of heat radiation.
Please refer to Fig. 1, be the structural drawing of a radiation fan, specifically comprise:
Base 10;
Stator 11, is fixedly installed on described base 10 surface;
Impeller 12, rotatable to be arranged at described stator 11 peripheral, and described impeller 12 comprises N number of fan blade 12a, and wherein, the structure of described N number of fan blade 12a is identical, N be more than or equal to 2 integer.
When described radiation fan is in running order, air-flow axially enters at least two fan blade 12a spaces by radiating electric fan, then rotates with impeller 12 at the driving further aspect of impeller 12; Under the effect of inertial force, improve energy on the other hand, leave impeller 12 along radial direction, do work by the centrifugal force of generation and the change of relative velocity.
Present inventor at least finds to there is following technical problem in prior art:
Due in the prior art, the physical arrangement of multiple fan blade that impeller comprises is all identical, so the noise waves of this multiple fan blade can be caused to be distributed in relatively more concentrated frequency range, and then cause the peak value of fan under single frequency spectrum higher, that is there is the too high technical problem of fan noise in prior art.
Summary of the invention
The embodiment of the present invention provides a kind of fan and electronic equipment, the technical problem that the noise for solving prior art fan is excessive.
A first aspect of the present invention, provides a kind of fan, comprising: base; Stator, is fixedly installed on described susceptor surface; Impeller, is rotatablely arranged at described stator peripheral, and described impeller comprises at least two fan blade of the first fan blade and the second fan blade, and described first fan blade is the fan blade that structure is different from described second fan blade.
In conjunction with first aspect, in the implementation that the first is possible, the corresponding first inlet air angle of described first fan blade, the second inlet air angle that described second fan blade is corresponding different from described first inlet air angle.
In conjunction with the implementation that the first is possible, in the implementation that the second is possible, corresponding first Way in of described first fan blade, the second Way in that described second fan blade is corresponding different from described first Way in.
In conjunction with the third aspect, in the implementation that the third is possible, corresponding first air outlet angle of described first fan blade, the second air outlet angle that described second fan blade is corresponding different from described first air outlet angle.
In conjunction with the implementation that the third is possible, in the 4th kind of possible implementation, corresponding first Way out of described first fan blade, the second Way out that described second fan blade is corresponding different from described first Way out.
In conjunction with first aspect, in the 5th kind of possible implementation, corresponding first vane type line of described first fan blade, the second vane type line that described second fan blade is corresponding different from described first vane type line.
Second aspect, the present invention also provides a kind of electronic equipment, comprising: shell; Processor, is arranged at described enclosure, for carrying out data processing;
The fan introduced in first to the 5th kind of possible implementation of first aspect or first aspect, arranges described enclosure/surface, is connected with described processor, dispels the heat for giving described processor.
The one or more technological schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
(1) due in the embodiment of the present application, the impeller of fan is provided with the first fan blade and second fan blade of different structure, because the structure of fan blade is different, so make the portions of the spectrum of the sound wave of fan noise offset, acoustic energy is made to be distributed in spectral range more widely, thus the peak value of sound wave under reducing single frequency spectrum, and then there is the technique effect reducing fan noise.
(2) due in the embodiment of the present application, described first fan blade can be multiple different from the structure of described second fan blade, such as: air inlet angle difference, air-out angle difference, vane type line are different etc., so reach the more diversified technique effect of noise reduction mode, and, based on different demands, optimal noise reduction mode can be selected flexibly, so have noise reduction technique effect more flexibly.
Accompanying drawing explanation
Fig. 1 is the structural drawing of prior art fan;
Fig. 2 is the structural drawing of the embodiment of the present application fan;
Fig. 3 a is the schematic diagram of the first inlet angle and the second inlet angle in the embodiment of the present application;
Fig. 3 b is the schematic diagram of the first exit angle and the second exit angle in the embodiment of the present application;
Fig. 4 is the structural drawing of electronic equipment in the embodiment of the present application.
Embodiment
In order to solve the excessive technical problem of prior art fan noise, in the embodiment of the present invention, provide a kind of fan, this fan comprises: base; Stator, is fixedly installed on described susceptor surface; Impeller, rotatablely be arranged at described stator peripheral, described impeller comprises the fan blade of at least two kinds of structures, because impeller comprises the different fan of two structures, so make the portions of the spectrum of the sound wave of fan noise offset, thus reduce the peak value of sound wave under single frequency spectrum, and then there is the technique effect reducing fan noise.
For making the object of the embodiment of the present invention, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
On the one hand, the embodiment of the present application provides a kind of fan, please refer to Fig. 2, and described fan specifically comprises following structure:
Base 20;
Stator 21, is fixedly installed on described base 20 surface;
Impeller 22, it is rotatable that to be arranged at described stator 21 peripheral, described impeller 22 comprises at least two fan blade of the first fan blade 22a and the second fan blade 22b, and described first fan blade 22a is the fan blade that structure is different from described second fan blade 22b.
In specific implementation process, described first fan blade 22a is different with the structure of described second fan blade 22b, can be presented as many aspects, and three kinds of enumerating below are wherein introduced, and certainly, is not limited to following three kinds of situations.In addition, in specific implementation process, three kinds of modes can be implemented separately below, and also can combine enforcement, and the embodiment of the present application is not restricted.
The first, the corresponding first inlet air angle of described first fan blade, the second inlet air angle that described second fan blade is corresponding different from described first inlet air angle.
Wherein, the inlet air angle of fan blade refers to the angle between the Way in (that is to say: the tangential direction of entry end) of blade and the circumferencial direction (that is to say: the tangent to periphery direction at blade exit end) of impeller.
As shown in Figure 3 a, be the structural drawing of a fan, wherein, the angle between the first Way in I1 and the first inlet circumference direction R1 is the first inlet air angle A1; Angle between second Way in I2 and the second inlet circumference direction R2 is the second inlet air angle A2, wherein, when the first inlet air differences in angle A1 is different with the second inlet air angle A2, such as: A1 is 30 degree, A2 is 35 degree, it can certainly be other value, just can ensure that crest or the trough of the noise component(s) that the first fan blade 22a and the second fan blade 22b causes do not exist overlap, and then make at a time noise figure can not be too high, to reach the effect of noise reduction.
In specific implementation process, in order to make described first inlet air angle A1 different from described second inlet air angle A2, various ways can be adopted, such as: when designing fan, the the first inlet circumference direction R1 making way for same position is identical with the second inlet circumference direction R2, and by the difference of the first Way in I1 and the second Way in I2 design, wherein, here same position refers to: suppose that the first fan blade 22a and the second fan blade 22b has identical first area, wherein, when the first area of the first fan blade 22a is positioned at primary importance, first fan blade 22a region is the second place, and when the first area of the second fan blade 22a is positioned at primary importance, second fan blade 22a is positioned at the 3rd position, so, the second place of the first fan blade 22a and the second place of the second fan blade 22b are then same position, or the first inlet circumference direction R1 making way for same position is different from the second inlet circumference direction R2, and the first Way in I1 and the second Way in I2 are designed identical, or both allowed the first Way in I1 of same position different with the second Way in I2, allow again the first inlet circumference direction R1 different with the second inlet circumference direction R2, the embodiment of the present application is not restricted.
The second, corresponding first air outlet angle of described first fan blade, the second air outlet angle that described second fan blade is corresponding different from described first air outlet angle.
Wherein, the air outlet angle of fan blade refers to the angle between the outlet circumferencial direction (that is to say: the tangent to periphery direction at blade exit end) of blade exit direction (that is to say: the tangential direction of outlet end) and impeller.
Please refer to Fig. 3 b, is another schematic diagram of fan, and wherein, the angle between the first Way out O1 and first outlet circumferencial direction R3 is the first air outlet angle B1; Angle between second Way out O2 and second outlet circumferencial direction R4 is the second air outlet angle B2, wherein, when the first air outlet angle B1 is different with the second air outlet angle B2, such as: B1 is 45 degree, B2 is 35 degree, it can certainly be other value, just can ensure that crest or the trough of the noise component(s) that the first fan blade 22a and the second fan blade 22b causes do not exist overlap, and then make at a time noise figure can not be too high, to reach the effect of noise reduction.
So, when control first air outlet angle is different with the second air outlet angle, also various ways can be adopted, such as: when designing fan, it is identical that the first outlet circumferencial direction R3 and second making way for same position exports circumferencial direction R4, and by the difference of the first Way out O1 and the second Way out O2 design; Or it is different that the first outlet circumferencial direction R3 and second making way for same position exports circumferencial direction R4, and the first Way out O1 and the second Way out O2 are designed identical; Or both allowed same position first Way out O1 different with the second Way out O2, allow again the first outlet circumferencial direction R3 different with the second outlet circumferencial direction R4, the embodiment of the present application is not restricted.
The third, the corresponding molded line of described first fan blade, the second molded line that described second fan blade is corresponding different from described first molded line.
In specific implementation process, described first fan blade and the second fan blade can be all Curves composition, and then respectively to there being different parameters of curve, when the first fan blade 22a is different with the parameter of curve of the second fan blade 22b, the flowing state of fluid is different, also the crest of the noise waves of both or trough can be caused to there is not overlap, make spectrum distribution wider, and then reach the technique effect reducing noise.
As seen from the above description, due in the embodiment of the present application, described first fan blade can be multiple different from the structure of described second fan blade, such as: air inlet angle difference, air-out angle difference, parameter of curve are different etc., so reach the more diversified technique effect of noise reduction mode, and, can based on different demands, the optimal noise reduction mode of flexible selection, so have noise reduction technique effect more flexibly.
In specific implementation process, described impeller 22 can comprise multiple fan blade of the first fan blade 22a and the second fan blade 22a, wherein, described fan only can comprise the first fan blade 22a or described second fan blade 22b a slice, also multi-disc can be comprised, and, described fan both only can comprise the first fan blade 22a and the second fan blade 22b, also can also comprise with the first fan blade 22a and the second fan blade 22b outside other fan blade, several different fan will be introduced respectively below, certainly, in specific implementation process, fan blade quantity can design according to actual conditions, be not limited to following several situation.
Fan 1
| Blade is numbered | First fan blade | Second fan blade |
| Blade quantity | 1 | 5 |
| Inlet air angle | 30° | 35° |
Visible fan 1 comprises the first fan blade 1, the second fan blade 5, and wherein, the inlet air angle between the first fan blade from the second fan blade is different.
Fan 2
| Blade is numbered | First fan blade | Second fan blade |
| Blade quantity | 2 | 2 |
| Air outlet angle | 45° | 35° |
Visible fan 2 comprises the first fan blade 2, and the second fan blade 2, wherein, the air outlet angle between the first fan blade from the second fan blade is different.
Fan 3
Visible fan 3 comprises the first fan blade 2, the second fan blade 2,3, three fan blade, and wherein, the first fan blade, parameter of curve between the second fan blade and the second fan blade are different.
In specific implementation process, described fan can be applied in any electronic equipment, such as: be arranged at portable electric appts (such as: notebook computer, integrated machine etc.) surperficial or inner, can give the hardware device coolings such as CPU, keyboard, mouse; Or be an independently fan, for the cooling in daily life; Or be arranged at centrifugal blower inside, for compression and transport gas etc., be applied to which kind of purposes for described fan, the embodiment of the present application is not restricted.
On the other hand, the embodiment of the present application provides a kind of electronic equipment, please refer to Fig. 4, and described electronic equipment comprises following structure:
Shell 40;
Processor 41, is arranged at described shell 40 inner, for carrying out data processing;
The fan 42 that the embodiment of the present application is introduced, arranges described shell 40 inner/surperficial, dispels the heat for giving described processor 41.
Because above-mentioned electronic equipment is the electronic equipment being provided with said fans; so based on fan introduced above; those skilled in the art can understand concrete structure and the distortion of above-mentioned electronic equipment; so introduce no longer in detail at this; as long as installed the electronic equipment of the fan that the embodiment of the present application is introduced, all belong to the application for protection scope.
One or more technological schemes that the application provides, at least have following technique effect or advantage:
(1) due in the embodiment of the present application, the page of fan is provided with the first fan blade and second fan blade of different structure, because the structure of fan blade is different, so make the portions of the spectrum of the sound wave of fan noise offset, acoustic energy is made to be distributed in spectral range more widely, thus the peak value of sound wave under reducing single frequency spectrum, and then there is the technique effect reducing fan noise.
(2) due in the embodiment of the present application, described first fan blade can be multiple different from the structure of described second fan blade, such as: air inlet angle difference, air-out angle difference, parameter of curve are different etc., so reach the more diversified technique effect of noise reduction mode, and, based on different demands, optimal noise reduction mode can be selected flexibly, so have noise reduction technique effect more flexibly.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not depart from the spirit and scope of the embodiment of the present invention.Like this, if these amendments of the embodiment of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (7)
1. a fan, is characterized in that, comprising:
Base;
Stator, is fixedly installed on described susceptor surface;
Impeller, is rotatablely arranged at described stator peripheral, and described impeller comprises at least two fan blade of the first fan blade and the second fan blade, and described first fan blade is the fan blade that structure is different from described second fan blade.
2. fan as claimed in claim 1, is characterized in that, the corresponding first inlet air angle of described first fan blade, the second inlet air angle that described second fan blade is corresponding different from described first inlet air angle.
3. fan as claimed in claim 2, is characterized in that, corresponding first Way in of described first fan blade, the second Way in that described second fan blade is corresponding different from described first Way in.
4. fan as claimed in claim 1, is characterized in that, corresponding first air outlet angle of described first fan blade, the second air outlet angle that described second fan blade is corresponding different from described first air outlet angle.
5. fan as claimed in claim 4, is characterized in that, corresponding first Way out of described first fan blade, the second Way out that described second fan blade is corresponding different from described first Way out.
6. fan as claimed in claim 1, is characterized in that, the molded line of corresponding first blade of described first fan blade, the second profile parameters of vane that described second fan blade is corresponding different from described first profile parameters of vane.
7. an electronic equipment, is characterized in that, comprising:
Shell;
Processor, is arranged at described enclosure, for carrying out data processing;
Fan as described in claim as arbitrary in claim 1-6, arranges described enclosure/surface, dispels the heat for giving described processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310217490.6A CN104214136A (en) | 2013-06-03 | 2013-06-03 | Fan and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310217490.6A CN104214136A (en) | 2013-06-03 | 2013-06-03 | Fan and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214136A true CN104214136A (en) | 2014-12-17 |
Family
ID=52095948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310217490.6A Pending CN104214136A (en) | 2013-06-03 | 2013-06-03 | Fan and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214136A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570342A (en) * | 2016-02-18 | 2016-05-11 | 太仓钰丰机械工程有限公司 | Silicone oil fan clutch with double spiral blades |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4867643A (en) * | 1988-05-19 | 1989-09-19 | Appleton Arthur I | Fan blade apparatus |
| US6648602B2 (en) * | 2001-12-27 | 2003-11-18 | Sunonwealth Electric Machine Industry Co., Ltd. | Fan having balancing blade sets |
| CN102822531A (en) * | 2010-03-15 | 2012-12-12 | 夏普株式会社 | Fan, metallic mold, and fluid delivery device |
| CN202926715U (en) * | 2012-11-08 | 2013-05-08 | 鑫贺精密电子(东莞)有限公司 | High-efficiency heat-radiating fan blade |
| CN203321886U (en) * | 2013-06-03 | 2013-12-04 | 联想(北京)有限公司 | Fan and electronic device |
-
2013
- 2013-06-03 CN CN201310217490.6A patent/CN104214136A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4867643A (en) * | 1988-05-19 | 1989-09-19 | Appleton Arthur I | Fan blade apparatus |
| US6648602B2 (en) * | 2001-12-27 | 2003-11-18 | Sunonwealth Electric Machine Industry Co., Ltd. | Fan having balancing blade sets |
| CN102822531A (en) * | 2010-03-15 | 2012-12-12 | 夏普株式会社 | Fan, metallic mold, and fluid delivery device |
| CN202926715U (en) * | 2012-11-08 | 2013-05-08 | 鑫贺精密电子(东莞)有限公司 | High-efficiency heat-radiating fan blade |
| CN203321886U (en) * | 2013-06-03 | 2013-12-04 | 联想(北京)有限公司 | Fan and electronic device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570342A (en) * | 2016-02-18 | 2016-05-11 | 太仓钰丰机械工程有限公司 | Silicone oil fan clutch with double spiral blades |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141217 |
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| RJ01 | Rejection of invention patent application after publication |