CN111075758A - Clustering fan blade - Google Patents
Clustering fan blade Download PDFInfo
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- CN111075758A CN111075758A CN201911407494.4A CN201911407494A CN111075758A CN 111075758 A CN111075758 A CN 111075758A CN 201911407494 A CN201911407494 A CN 201911407494A CN 111075758 A CN111075758 A CN 111075758A
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- blade
- clustering
- group
- fan
- fan blade
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/327—Rotors specially for elastic fluids for axial flow pumps for axial flow fans with non identical blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a clustering fan blade which comprises a hub and at least one clustering blade group, wherein the clustering blade group is arranged on the hub, the clustering blade group comprises at least one blade, and at least one blade in each clustering blade group is arranged on the hub. Through adopting above-mentioned structure, this application can be under the unchangeable circumstances of the peripheral size of guaranteeing the fan blade, promotes the acting efficiency of fan blade structure, can solve the dynamic balance problem of fan blade to and reduce the material of material.
Description
Technical Field
The invention relates to the technical field of fan heat dissipation, in particular to a cluster fan blade.
Background
The fan is widely applied to electronic components such as computers, civil electric appliances such as hair dryers and the like, and industries and fields such as chemical engineering, machinery and the like. The main performances of the fan include air supply performance and acoustic performance, wherein the air supply performance is taken as the most basic performance of the fan, and the larger the air supply amount is, the better the heat dissipation effect which can be achieved by the fan is.
At present, the axial flow fan solves the problem of air volume or the problem of diffusion within a certain height and diameter, and usually a certain number of blades are added on a hub or the angle and the arc length of the blades are adjusted, so that the improvement space of the performance of the fan blade is small by adjusting the parameters such as the angle and the arc length; by increasing the number of blades on the hub requires a reduction in blade size, the performance of the individual blades is reduced.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a cluster fan blade which can achieve the effect of larger air output of the whole fan blade.
In order to solve the problems, the invention is realized according to the following technical scheme:
a cluster fan blade comprises a fixed structure and at least one cluster blade group, wherein the cluster blade group is arranged on the fixed structure and comprises at least one blade, and at least one blade in each cluster blade group is directly or indirectly connected to the fixed structure.
Preferably, the blade clustering group comprises at least two blades, at least one blade in each blade clustering group is directly or indirectly arranged on the fixed structure, and the rest blades are directly or indirectly connected with the blade and/or directly or indirectly connected with the fixed structure.
Preferably, the blade clustering groups comprise at least two first blade clustering groups with the same structure; in the rotation process of the first clustering blade group, the first clustering blade group can be completely overlapped with the original space of any first clustering blade group;
or the at least one blade clustering group further comprises a second blade clustering group with a structure different from that of the first blade clustering group; and in the rotation process of the second clustering blade group, the space where the second clustering blade group and the first clustering blade group are originally located is not overlapped.
Preferably, there are several blade diameters.
Preferably, the length range of the diameter of the fan blade is 20 mm-1.5 m.
Preferably, the fan blade has at least one fan blade solidity; the fan blade real-scale value is as follows:
(i and n are positive integers, i is not less than 1, n is not less than i), wherein S isDThe blade solidity L corresponding to the diameter D of the bladeiIs the chord length of the blade i,
the sum of the chord lengths of the blades of each blade corresponding to the diameter D of the fan blade in the same clustering blade group, and n is the number of the clustering blade groups.
Preferably, the fan blade solid degree value ranges from 0.05 to 0.95.
Preferably, the chord length of the blade corresponding to the blade with the same blade diameter in the cluster blade group is as follows:
Preferably, the blade clustering group comprises at least two blades, wherein the two blades in mutual connection relation are directly connected or connected through a connecting piece.
Preferably, the cluster blade group comprises at least two blades; the distance between any two indirectly connected blades is not zero.
Preferably, the cluster blade group comprises at least two blades; the spacing of the opposing faces between any two directly connected blades is not zero.
Preferably, the at least one blade clustering group is uniformly arranged on the fixing structure.
Preferably, the fixed structure is a hub.
Compared with the prior art, the invention has the following beneficial effects:
through adopting above-mentioned structure, this application can be under the unchangeable circumstances of the peripheral size of guaranteeing the fan blade, promotes the acting efficiency of fan blade structure, can solve the dynamic balance problem of fan blade to and reduce the material of material.
And because can have a plurality of fan blades solidity, therefore not only do effective work to the most peripheral of single blade, the wind that cluster blade group produced can be more even, efficiency is higher than traditional fan blade. In a limited space, the performance of the fan blade is improved through the clustering blade group, and meanwhile, the noise is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Wherein:
fig. 1 is a schematic structural diagram of a cluster blade (embodiment one) according to the present invention;
FIG. 2 is a schematic view of a plurality of blade diameters of a cluster blade according to the present invention;
FIG. 3 is a schematic structural diagram a of a first embodiment of the present invention;
FIG. 4 is a schematic structural diagram a of a second embodiment of the present invention;
FIG. 5 is a schematic structural diagram b of a second embodiment of the present invention;
FIG. 6 is a schematic structural diagram a of a third embodiment of the present invention;
FIG. 7 is a schematic structural diagram b of a third embodiment of the present invention;
FIG. 8 is a schematic structural diagram a of a fourth embodiment of the present invention;
fig. 9 is a schematic structural diagram b of a fourth embodiment of the present invention.
In the figure:
1-a hub; 2-clustering the leaf groups; 21-a first blade; 221-inner leaf; 222-connecting leaf; 223-outer leaf; 22-a second blade; 23-connecting pieces; 24-a third blade; 3-reinforcing frame.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, a detailed description of the present application will be given below with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and the described embodiments are merely a subset of the embodiments of the present application, rather than all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The invention provides a clustering fan blade which comprises a fixed structure and at least one clustering blade group, wherein the clustering blade group is arranged on the fixed structure. The fixed structure is typically a hub. The blade clustering groups comprise at least one blade, and at least one blade in each blade clustering group is directly or indirectly connected to the hub. And when the cluster blade group comprises at least two blades, at least one blade in each cluster blade group is directly or indirectly connected to the hub, and the other blades are directly or indirectly connected with the blade and/or directly or indirectly connected with the hub.
When being provided with two at least cluster blade groups on the wheel hub:
1) the clustering blade groups are the same clustering blade groups: if the clustering blade group only comprises the first clustering blade group with the same structure, the first clustering blade group can be completely superposed with the original space of any first clustering blade group in the rotating process;
2) the clustering blade groups are different clustering blade groups: if the clustering blade group comprises a first clustering blade group and a second clustering blade group with a structure different from that of the first insulation blade group, the second clustering blade group does not coincide with the original space of the first clustering blade group in the rotation process of the second clustering blade group.
In order to provide even air output and integral stability of the fan blades, at least one cluster blade group is uniformly distributed on the hub.
The cluster fan blade provided by the invention has at least one fan blade diameter (in a cluster blade group, one blade corresponds to one fan blade diameter). In order to match different specific application scenes and achieve a better implementation scheme, the length range of the diameter of the fan blade can be set to be 20 mm-1.5 m according to actual requirements.
At least one fan blade diameter forms a plurality of fan blade diameters d1, d 2. The largest fan blade diameter is dn, and dn is a real number larger than 0.
The cluster fan blade is provided with at least one fan blade diameter based on the above, and each fan blade diameter corresponds to a fan blade solidity; the fan blade real number value is:
(i and n are positive integers, i is not less than 1, n is not less than i), wherein S isDThe blade solidity L corresponding to the diameter D of the bladeiIs the chord length of the blade i,
the sum of the chord lengths of the blades of the same cluster blade group corresponding to the same blade diameter D is shown, and n is the number of the cluster blade groups. In order to match different specific application scenarios and achieve a better implementation scheme, the range of the fan blade real-estate value can be 0.05-0.95 according to actual requirements.
And because the cluster blade group comprises at least one blade, when the number of the blades in the cluster blade group is more than 1, the chord length of the blade corresponding to the blade with the same blade diameter D in the cluster blade group is as follows:
When the clustering blade group comprises at least two blades, the blades to be connected in the clustering blade group can be directly connected or connected through a connecting piece。The distance between any two indirectly connected blades is not zero and/or the separation of opposing faces between any two directly connected blades is not zero.
In order to ensure the stability of the air quantity and the operation stability of the whole fan blade, the clustering blade groups are uniformly distributed on the hub, and the service life of the clustering fan blade is prolonged.
The four embodiments of the clustering fan blade according to the present invention are described below, and the four embodiments represent clustering fan blades with different structures.
Example one
As shown in fig. 1 and fig. 3, the clustering fan blade disclosed in this embodiment includes a hub 1 and three clustering blade groups 2, each clustering blade group 2 includes a first blade 21 and a second blade 22, a blade root of the first blade 21 is connected to the hub 1, a blade root of the second blade 22 is connected to a blade root end of the first blade 21 through a connecting piece 23, and a gap exists between the first blade 21 and the second blade 22.
The cluster blade disclosed in this embodiment has a cluster blade group with the same structure, and includes two blades, and the blades are connected by a connecting member. The cluster fan blade has two fan blade diameters, the two fan blade diameters are D1, and a fan blade solidity is correspondingly arranged.
Example two
As shown in fig. 4 and 5, the cluster blade disclosed in this embodiment includes a hub 1, three cluster blade groups 2 are uniformly disposed on the hub 1, and each cluster blade group 2 includes a first blade 21, a second blade 22, and a third blade 23. The blade root of the first blade and the blade root of the second blade 22 are respectively connected with the hub 1, the blade tip of the second blade 22 is connected with the first blade 21, and the third blade 23 is arranged on the leeward side of the second blade 22. Height differences exist between the first blade 21 and the second blade 22, between the first blade 21 and the third blade 23, and between the second blade 22 and the third blade 23.
The cluster fan blade that this embodiment disclosed, the cluster blade group that it had is the same cluster blade group of structure, and it includes three blade, and the second blade is direct to be connected with first blade (does not adopt the connection piece), still is provided with the third blade on the second blade. The cluster fan blade has three fan blade diameters, wherein the diameters of two fan blades are D2, the diameter of the other fan blade is D3, and the cluster fan blade correspondingly has two fan blade solidities.
EXAMPLE III
As shown in fig. 6 and 7, the cluster blade disclosed in this embodiment includes a hub 1, and three cluster blade groups 2 are uniformly disposed on the hub 1. The cluster blade group 2 includes a first blade 21 and a second blade 22. The second blade 22 includes an inner blade 221, a connecting blade 222, and an outer blade 223, and the inner blade 221 is connected to the outer blade 223 through the connecting blade 222.
The cluster blade disclosed in the embodiment has a cluster blade group with the same structure, and comprises two blades, wherein the first blade is not connected with the second blade, and the second blade belongs to a blade with a special structure; the cluster fan blade is provided with two fan blade diameters, wherein the two fan blade diameters D are both D4, and the cluster fan blade is correspondingly provided with a fan blade solidity.
Example four
As shown in fig. 8 and 9, the cluster blade disclosed in this embodiment includes a hub, three groups of cluster blades are disposed on the hub, and each cluster blade includes a first blade and a second blade. The first blade sets up on wheel hub, and the second blade passes through the connecting piece and connects the setting on first blade, and the connecting piece runs through first blade. Adjacent connecting piece end to end forms and strengthens the frame, and first blade and second blade mutual interval distribution set up.
The cluster blade disclosed in this embodiment, the cluster blade group that it had is the same cluster blade group of structure, and it includes two blades, and first blade and second blade pass through connecting piece interconnect, and the connecting piece becomes an organic whole mutually. The cluster blade group is provided with two blades, so the cluster blade has two blade diameters D, the two blade diameters are both D5, and a blade solidity is correspondingly provided.
The cluster fan blade provided by the invention is changed in a new form, and particularly, a cluster fan blade group is set on a hub, so that the cluster fan blade is formed. The fan blade performance is improved without adopting a mode of increasing a certain number of blades on a hub or adjusting the angles and arc lengths of the blades, the blade structures on the fan blades are clustered and modularly arranged, and the blades in a clustered blade group are adjusted, so that the fan blade performance is improved. The problem that the improvement space for the performance of the fan blade is small when the performance is adjusted in a traditional mode of increasing a certain number of blades on a hub or adjusting the angles and arc lengths of the blades is solved; the problem of reduced performance of a single blade is reduced by the increased number of blades on the hub, which requires a reduction in blade size. The performance of a single blade and the performance of the whole fan blade can be improved.
The cluster fan blade provided by the invention can be limited to the outermost periphery of a single fan blade to do effective work, so that the air volume generated by the cluster fan blade group is increased by at least 10% compared with that of the traditional fan blade, and the cluster fan blade is more uniform and has higher efficiency. The problem of air output and stability can be solved simultaneously effectively, when realizing that the air output is big, can also guarantee the holistic stability of fan blade structure. The position relation among the blades is reasonably arranged and designed into a whole, and the limited size space can be fully utilized.
While the preferred embodiments of the present invention have been illustrated and described in detail, it should be understood that modifications and variations can be effected by one skilled in the art in light of the above teachings without undue experimentation. Therefore, any technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the present inventive concept should be within the scope of protection defined by the present claims.
Claims (13)
1. The clustering fan blade is characterized by comprising a fixing structure and at least one clustering blade group, wherein the clustering blade group is arranged on the fixing structure and comprises at least one blade, and at least one blade in each clustering blade group is directly or indirectly connected to the fixing structure.
2. The clustering fan blade according to claim 1, wherein the clustering blade group comprises at least two blades, at least one blade in each clustering blade group is directly or indirectly arranged on a fixing structure, and the rest blades are directly or indirectly connected with the blade and/or directly or indirectly connected with the fixing structure.
3. The clustering fan blade according to claim 1, wherein the clustering blade group comprises at least two first clustering blade groups with the same structure; in the rotation process of the first clustering blade group, the first clustering blade group can be completely overlapped with the original space of any first clustering blade group;
or the at least one blade clustering group further comprises a second blade clustering group with a structure different from that of the first blade clustering group; and in the rotation process of the second clustering blade group, the space where the second clustering blade group and the first clustering blade group are originally located is not overlapped.
4. The clustering fan blade according to claim 1 or 3, characterized in that there are several fan blade diameters.
5. The clustering fan blade according to claim 4, wherein the length of the diameter of the fan blade is in the range of 20mm to 1.5 m.
6. The clustering fan blade according to claim 1, characterized by having at least one fan blade solidity; the fan blade real-scale value is as follows:
(i and n are positive integers, i is not less than 1, n is not less than i), wherein S isDThe blade solidity L corresponding to the diameter D of the bladeiIs the chord length of the blade i,
the sum of the chord lengths of the blades of each blade corresponding to the diameter D of the fan blade in the same clustering blade group, and n is the number of the clustering blade groups.
7. The clustering fan blade according to claim 6, wherein the fan blade solidity value is in a range of 0.05-0.95.
8. The clustering fan blade according to claim 1, wherein the chord length of the blade corresponding to the same fan blade diameter in the clustering blade group is:
9. The clustering fan blade according to any one of claims 1 to 8, wherein the cluster blade group comprises at least two blades, and two blades in an interconnecting relationship are directly connected or connected through a connecting member.
10. The clustering fan blade according to claim 1, wherein the clustering blade group comprises at least two blades; the distance between any two indirectly connected blades is not zero.
11. The clustering fan blade according to claim 1, wherein the clustering blade group comprises at least two blades; the spacing of the opposing faces between any two directly connected blades is not zero.
12. The clustering fan blade according to claim 1, wherein the at least one cluster blade group is uniformly arranged on the fixing structure.
13. The clustering fan blade according to claim 1, wherein the fixing structure is a hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911407494.4A CN111075758A (en) | 2019-12-31 | 2019-12-31 | Clustering fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911407494.4A CN111075758A (en) | 2019-12-31 | 2019-12-31 | Clustering fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111075758A true CN111075758A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911407494.4A Pending CN111075758A (en) | 2019-12-31 | 2019-12-31 | Clustering fan blade |
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| CN (1) | CN111075758A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040041956A (en) * | 2002-11-12 | 2004-05-20 | 엘지전자 주식회사 | Axial flow fan |
| US20150308450A1 (en) * | 2014-04-24 | 2015-10-29 | Carlos Gomes | Ceiling fan blade attachment |
| CN108302065A (en) * | 2017-07-26 | 2018-07-20 | 奥克斯空调股份有限公司 | Low noise axial-flow leaf |
| CN109958641A (en) * | 2019-05-08 | 2019-07-02 | 中山宜必思科技有限公司 | A kind of axial flow blower structure of high-efficient low-noise |
| CN110118196A (en) * | 2018-02-07 | 2019-08-13 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
-
2019
- 2019-12-31 CN CN201911407494.4A patent/CN111075758A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040041956A (en) * | 2002-11-12 | 2004-05-20 | 엘지전자 주식회사 | Axial flow fan |
| US20150308450A1 (en) * | 2014-04-24 | 2015-10-29 | Carlos Gomes | Ceiling fan blade attachment |
| CN108302065A (en) * | 2017-07-26 | 2018-07-20 | 奥克斯空调股份有限公司 | Low noise axial-flow leaf |
| CN110118196A (en) * | 2018-02-07 | 2019-08-13 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
| CN109958641A (en) * | 2019-05-08 | 2019-07-02 | 中山宜必思科技有限公司 | A kind of axial flow blower structure of high-efficient low-noise |
Non-Patent Citations (1)
| Title |
|---|
| 吴秉礼 等: "《轴流通风机的工程设计方法》", 30 September 2007, 吉林大学出版社 * |
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Application publication date: 20200428 |