CN203321886U - Fan and electronic device - Google Patents

Fan and electronic device Download PDF

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Publication number
CN203321886U
CN203321886U CN2013203167110U CN201320316711U CN203321886U CN 203321886 U CN203321886 U CN 203321886U CN 2013203167110 U CN2013203167110 U CN 2013203167110U CN 201320316711 U CN201320316711 U CN 201320316711U CN 203321886 U CN203321886 U CN 203321886U
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China
Prior art keywords
fan blade
fan
blade
angle
different
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Expired - Lifetime
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CN2013203167110U
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Chinese (zh)
Inventor
那志刚
贾自周
孙英
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Abstract

The utility model discloses a fan and an electronic device and aims to solve the technical problem that the fans are high in noise in the prior art. The fan comprises a base, a stator and an impeller. The stator is fixed on the surface of the base. The impeller is rotationally disposed on the periphery of the stator. The impeller 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 first fan blade and the second fan blade are different in structure, frequency spectrum of sound waves of fan noise is deviated to be distributed in a wider range, peak of sound waves under single frequency spectrum is lowered, and the fan noise is lowered.

Description

A kind of fan and electronic equipment
Technical field
The utility model relates to field of mechanical technique, particularly a kind of fan and electronic equipment.
Background technique
Along with scientific and technical development, electronic technology has also obtained development at full speed, and then has also produced increasing electronic equipment, such as: panel computer, notebook computer, integrated machine etc.And along with the growth gradually of the Processing capacity of these electronic equipments, its power consumption also increases gradually, so the heat of its generation also increases thereupon, in order to prevent the loss brought to electronic equipment because of heating up, a lot of electronic equipments all have sink, such as: radiation fan, radiating fin etc. can conduct to environment by the heat of electronic equipment fast by these sinks, and then play the effect of heat radiation.
Please refer to Fig. 1, is the structural drawing of a radiation fan, specifically comprises:
Base 10;
Stator 11, be fixedly installed on described base 10 surfaces;
Impeller 12, rotatable described stator 11 peripheries that are arranged at, described impeller 12 comprises N fan blade 12a, and wherein, the structure of described N fan blade 12a is identical, and N is 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 under the driving of impeller 12, with impeller 12, rotates on the one hand; Improve energy on the other hand under the effect of inertial force, along radial direction, leave impeller 12, do work by the centrifugal force of generation and the change of relative velocity.
The present inventor at least finds in prior art to exist following technical problem:
Due in the prior art, the physical arrangement of a plurality of fan blade that impeller comprises is all identical, so can cause the noise waves of these a plurality of fan blade can be distributed in more concentrated frequency range, and then cause the peak value of fan under single frequency spectrum higher, that is to say in prior art and exist the too high technical problem of fan noise.
The model utility content
The utility model embodiment provides a kind of fan and electronic equipment, the excessive technical problem for the noise that solves the prior art fan.
First aspect of the present utility model, provide a kind of fan, comprising: base; Stator, be fixedly installed on described susceptor surface; Impeller, the rotatable described stator periphery that is arranged at, described impeller comprises at least two fan blade of the first fan blade and the second fan blade, described the first fan blade is the fan blade that structure is different from described the second fan blade.
In conjunction with first aspect, in the first in possible implementation, corresponding the first inlet air angle of described the first fan blade, the second inlet air angle corresponding to described the second fan blade.
The possible implementation in conjunction with the first, at the second in possible implementation, corresponding the first Way in of described the first fan blade, the second Way in corresponding to described the second fan blade.
In conjunction with the third aspect, at the third in possible implementation, corresponding the first air outlet angle of described the first fan blade, the second air outlet angle corresponding to described the second fan blade.
The possible implementation in conjunction with the third, in the 4th kind of possible implementation, corresponding the first Way out of described the first fan blade, the second Way out corresponding to described the second fan blade.
In conjunction with first aspect, in the 5th kind of possible implementation, corresponding the first vane type line of described the first fan blade, the second vane type line corresponding to described the second fan blade.
Second aspect, the utility model also provides a kind of electronic equipment, comprising: shell; Processor, be arranged at described enclosure, for carrying out the data processing;
The fan of introducing in first to the 5th kind of possible implementation of first aspect or first aspect, arrange described enclosure/surface, with described processor, is connected, and for giving described processor, dispelled the heat.
The one or more technological schemes that provide in the embodiment of the present application at least have following technique effect or advantage:
(1) due in the embodiment of the present application, be provided with the first fan blade and second fan blade of different structure on the impeller of fan, structure difference due to fan blade, so the portions of the spectrum of the sound wave of fan noise is offset, make acoustic energy be distributed in spectral range more widely, thereby reduced the peak value of sound wave under single frequency spectrum, and then there is the technique effect that reduces fan noise.
(2) due in the embodiment of the present application, described the first fan blade can be for multiple different from the structure of described the second fan blade, such as: air inlet angle is different, the air-out angle is different, vane type line is different etc., so reached the more diversified technique effect of noise reduction mode, and, demand that can be based on different, select optimal noise reduction mode, flexibly so have noise reduction technique effect more flexibly.
The accompanying drawing explanation
The structural drawing that Fig. 1 is the prior art fan;
The structural drawing that Fig. 2 is the embodiment of the present application fan;
The schematic diagram that Fig. 3 a is the first inlet angle and the second inlet angle in the embodiment of the present application;
The schematic diagram that Fig. 3 b is the first exit angle and the second exit angle in the embodiment of the present application;
The structural drawing that Fig. 4 is 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 utility model embodiment, provide a kind of fan, this fan comprises: base; Stator, be fixedly installed on described susceptor surface; Impeller, the rotatable described stator periphery that is arranged at, described impeller comprises the fan blade of at least two kinds of structures, because impeller comprises two fans that structure is different, so the portions of the spectrum of the sound wave of fan noise is offset, thereby reduced the peak value of sound wave under single frequency spectrum, and then there is the technique effect that reduces fan noise.
For the purpose, technological scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment who obtains, and all belong to the scope of the utility model protection.
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, be fixedly installed on described base 20 surfaces;
Impeller 22, rotatable described stator 21 peripheries that are arranged at, described impeller 22 comprises at least two fan blade of the first fan blade 22a and the second fan blade 22b, and described the first fan blade 22a is the fan blade that structure is different from described the second fan blade 22b.
In specific implementation process, described the first fan blade 22a is different with the structure of described the second fan blade 22b, can be presented as many aspects, and three kinds that below enumerate wherein are introduced, and certainly, is not limited to following three kinds of situations.In addition, in specific implementation process, below three kinds of modes can implement separately, the enforcement that also can combine, the embodiment of the present application is not restricted.
The first, corresponding the first inlet air angle of described the first fan blade, the second inlet air angle corresponding to described the second fan blade.
The tangential direction of entry end) and the angle between the circumferencial direction of impeller (that is to say: in the tangent to periphery direction of blade exit end) wherein, the Way in that the inlet air angle of fan blade refers to blade (that is to say:.
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 entrance circumferencial direction R1 is the first inlet air angle A1; Angle between the second Way in I2 and the second entrance circumferencial direction R2 is the second inlet air angle A2, wherein, at the first inlet air differences in angle A1 with the second inlet air angle A2 when different, for example: A1 is that 30 degree, A2 are 35 degree, can certainly be worth for other, just can guarantee that the crest of the noise component(s) that the first fan blade 22a and the second fan blade 22b cause or trough do not exist overlapping, and then make the at a time noise figure can be not too high, to reach the effect of noise reduction.
In specific implementation process, in order to make described the first inlet air angle A1 different from described the second inlet air angle A2, can adopt various ways, for example: when the design fan, the the first entrance circumferencial direction R1 that makes way for same position is identical with the second entrance circumferencial direction R2, and by the difference of the first Way in I1 and the second Way in I2 design, wherein, the same position here refers to: suppose that the first fan blade 22a and the second fan blade 22b have identical first area, wherein, when the first area of the first fan blade 22a is positioned at primary importance, the first fan blade 22a region is the second place, and while in the first area of the second fan blade 22a, being positioned at primary importance, the second fan blade 22a is positioned at the 3rd position, so, the second place of the second place of the first fan blade 22a and the second fan blade 22b is same position, or the first entrance circumferencial direction R1 that makes way for same position is different from the second entrance circumferencial direction R2, and identical by the first Way in I1 and the second Way in I2 design, or, both allowed the first Way in I1 of same position different with the second Way in I2, allow again the first entrance circumferencial direction R1 different with the second entrance circumferencial direction R2, the embodiment of the present application is not restricted.
The second, corresponding the first air outlet angle of described the first fan blade, the second air outlet angle corresponding to described the second fan blade.
The tangential direction of outlet end) and the angle between the outlet circumferencial direction of impeller (that is to say: in the tangent to periphery direction of blade exit end) wherein, the air outlet angle of fan blade refers to the blade exit direction and (that is to say:.
Please refer to Fig. 3 b, is another schematic diagram of fan, and wherein, the angle between the first Way out O1 and the first outlet circumferencial direction R3 is the first air outlet angle B1; Angle between the second Way out O2 and the second outlet circumferencial direction R4 is the second air outlet angle B2, wherein, at the first air outlet angle B1 with the second air outlet angle B2 when different, for example: B1 is that 45 degree, B2 are 35 degree, can certainly be worth for other, just can guarantee that the crest of the noise component(s) that the first fan blade 22a and the second fan blade 22b cause or trough do not exist overlapping, and then make the at a time noise figure can be not too high, to reach the effect of noise reduction.
So, controlling the first air outlet angle with the second air outlet angle when different, also can adopt various ways, for example: when the design fan, the the first outlet circumferencial direction R3 that makes way for same position is identical with the second outlet circumferencial direction R4, and by the difference of the first Way out O1 and the second Way out O2 design; Or the first outlet circumferencial direction R3 that makes way for same position is different with the second outlet circumferencial direction R4, and the first Way out O1 and the second Way out O2 are designed identical; Or, both allowed same position the 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 the first fan blade, the second molded line corresponding to described the second fan blade.
In specific implementation process, described the first fan blade and the second fan blade can be all Curves and form, and then respectively to different parameters of curve should be arranged, when the parameter of curve of the first fan blade 22a and the second fan blade 22b is different, the flowing state difference of fluid, also can cause the two the crest of noise waves or trough not to exist overlappingly, make spectrum distribution wider, and then reach the technique effect that reduces noise.
As seen from the above description, due in the embodiment of the present application, described the first fan blade can be for multiple different from the structure of described the second fan blade, such as: air inlet angle is different, the air-out angle is different, parameter of curve is different etc., so reached the more diversified technique effect of noise reduction mode, and, demand that can be based on different, select flexibly optimal noise reduction mode, so there is noise reduction technique effect more flexibly.
In specific implementation process, described impeller 22 can comprise the first fan blade 22a and the second fan blade 22a in interior a plurality of fan blade, wherein, described fan can only comprise the first fan blade 22a or described second fan blade 22b a slice, also can comprise multi-disc, and, described fan both can only 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, below will introduce respectively several different fans, certainly, in specific implementation process, fan blade quantity can be designed according to actual conditions, be not limited to following several situation.
Fan 1
The blade numbering The first fan blade The second fan blade
Blade quantity 1 5
The inlet air angle 30° 35°
Visible fan 1 comprises 1 of the first fan blade, the second 5 of fan blade, and wherein, the first fan blade is different from the inlet air angle between the second fan blade.
Fan 2
The blade numbering The first fan blade The second fan blade
Blade quantity 2 2
Air outlet angle 45° 35°
Visible fan 2 comprises 2 of the first fan blade, the second 2 of fan blade, and wherein, the first fan blade is different from the air outlet angle between the second fan blade.
Fan 3
Figure BDA00003293102600071
Visible fan 3 comprises 2 of the first fan blade, the second 2 of fan blade, and 3, three fan blade, wherein, the parameter of curve difference between the first fan blade, the second fan blade and the second fan blade.
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.) surface or inner, lower the temperature to the hardware devices such as CPU, keyboard, mouse; Or be a fan independently, for the cooling of daily life; Or be arranged at centrifugal blower inside, and for compression and transport gas etc., for described fan, being applied to which kind of purposes, 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, be arranged at described shell 40 inside, for carrying out the data processing;
The fan 42 that the embodiment of the present application is introduced, arrange described shell 40 inside/surface, for giving described processor 41, dispelled the heat.
Because above-mentioned electronic equipment is the electronic equipment that is provided with said fans; so fan of introducing based on front; 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 the electronic equipment of the fan that the embodiment of the present application introduces has been installed, all belong to the scope of the application institute wish protection.
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, be provided with the first fan blade and second fan blade of different structure on the page of fan, structure difference due to fan blade, so the portions of the spectrum of the sound wave of fan noise is offset, make acoustic energy be distributed in spectral range more widely, thereby reduced the peak value of sound wave under single frequency spectrum, and then there is the technique effect that reduces fan noise.
(2) due in the embodiment of the present application, described the first fan blade can be for multiple different from the structure of described the second fan blade, such as: air inlet angle is different, the air-out angle is different, parameter of curve is different etc., so reached the more diversified technique effect of noise reduction mode, and, demand that can be based on different, select optimal noise reduction mode, flexibly so have noise reduction technique effect more flexibly.
Although described preferred embodiment of the present utility model, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiments.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the utility model scope.
Obviously, those skilled in the art can carry out various changes and modification and the spirit and scope that do not break away from the utility model embodiment to the utility model embodiment.Like this, if within these of the utility model embodiment are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these changes and modification interior.

Claims (7)

1. a fan, is characterized in that, comprising:
Base;
Stator, be fixedly installed on described susceptor surface;
Impeller, the rotatable described stator periphery that is arranged at, described impeller comprises at least two fan blade of the first fan blade and the second fan blade, described the first fan blade is the fan blade that structure is different from described the second fan blade.
2. fan as claimed in claim 1, is characterized in that, corresponding the first inlet air angle of described the first fan blade, the second inlet air angle corresponding to described the second fan blade.
3. fan as claimed in claim 2, is characterized in that, corresponding the first Way in of described the first fan blade, the second Way in corresponding to described the second fan blade.
4. fan as claimed in claim 1, is characterized in that, corresponding the first air outlet angle of described the first fan blade, the second air outlet angle corresponding to described the second fan blade.
5. fan as claimed in claim 4, is characterized in that, corresponding the first Way out of described the first fan blade, the second Way out corresponding to described the second fan blade.
6. fan as claimed in claim 1, is characterized in that, the molded line of corresponding the first blade of described the first fan blade, the second profile parameters of vane corresponding to described the second fan blade.
7. an electronic equipment, is characterized in that, comprising:
Shell;
Processor, be arranged at described enclosure, for carrying out the data processing;
The described fan of claim as arbitrary as claim 1-6, arrange described enclosure/surface, for giving described processor, dispelled the heat.
CN2013203167110U 2013-06-03 2013-06-03 Fan and electronic device Expired - Lifetime CN203321886U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203167110U CN203321886U (en) 2013-06-03 2013-06-03 Fan and electronic device

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Application Number Priority Date Filing Date Title
CN2013203167110U CN203321886U (en) 2013-06-03 2013-06-03 Fan and electronic device

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214136A (en) * 2013-06-03 2014-12-17 联想(北京)有限公司 Fan and electronic equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214136A (en) * 2013-06-03 2014-12-17 联想(北京)有限公司 Fan and electronic equipment

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Granted publication date: 20131204