CN105065324A - Impeller and centrifugal fan - Google Patents
Impeller and centrifugal fan Download PDFInfo
- Publication number
- CN105065324A CN105065324A CN201510415522.2A CN201510415522A CN105065324A CN 105065324 A CN105065324 A CN 105065324A CN 201510415522 A CN201510415522 A CN 201510415522A CN 105065324 A CN105065324 A CN 105065324A
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- Prior art keywords
- impeller
- flow
- water guiding
- wheel hub
- guiding strip
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Abstract
The invention discloses an impeller. The impeller comprises a wheel hub and a plurality of vanes which are uniformly distributed on the surface of one side of the wheel hub in the circumferential direction; a flow channel is formed between every two adjacent vanes; a plurality of flow guide bars which are arranged along the flow channels side by side are disposed on the parts, between the adjacent vanes, of the side surface of the wheel hub; during operation, the flow guide bars in the flow channels can stop a secondary flow; besides, the flow guide bars are arranged along the flow channels and the direction of the secondary flow can be changed under the action of the flow guide bars so as to be consistent with the direction of a main flow, and accordingly the purposes of inhibiting the secondary flow in the flow channels, avoiding corner vortex and increasing the efficiency of a centrifugal fan are achieved. The invention further discloses the centrifugal fan.
Description
Technical field
The present invention relates to centrifugal blower technical field, particularly a kind of impeller and centrifugal blower.
Background technique
Impeller is the critical piece of centrifugal blower, is done work thus the pressure of raising air-flow and flow velocity to air-flow by blade.
In prior art, refer to Fig. 1, Fig. 1 is the structural representation of impeller in prior art, impeller is made up of at multiple blades 2 of wheel hub 1 one side surface wheel hub 1 and being uniformly distributed circumferentially, wheel hub 1 side surface between the surface that adjacent two blades 2 are relative and two blades 2 surrounds airflow path, because smooth wall is very little for the interference effect of air-flow, therefore, in course of working, people often pursue the slickness of wall, smooth wall is little for the interference effect of air-flow main flow, the Secondary Flow different from air-flow main flow direction in the surperficial boundary layer of wheel hub 1 is not disturbed equally, and Secondary Flow is the main cause causing whirlpool, angle, the existence of Secondary Flow can reduce the efficiency of centrifugal blower.
Therefore, how to provide a kind of impeller, Secondary Flow in runner can be suppressed, avoid the generation in whirlpool, angle, improve the efficiency of centrifugal blower, become the important technological problems that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of impeller and centrifugal blower, Secondary Flow in runner can be suppressed to reach, avoid the generation in whirlpool, angle, improve the object of the efficiency of centrifugal blower.
For achieving the above object, the invention provides following technological scheme:
A kind of impeller, comprises wheel hub and is uniformly distributed circumferentially the multiple blades at described wheel hub one side surface, form runner, the side surface of the described wheel hub between adjacent blades is also provided with many water guiding strips be arranged side by side along described runner between adjacent blades.
Preferably, the cross section of described water guiding strip is triangle.
Preferably, the width of described water guiding strip is 0.5mm ~ 1mm.
Preferably, the height of described water guiding strip is 1mm ~ 2mm.
Preferably, described water guiding strip extends to outlet side from the inlet end of described runner.
Preferably, described blade reverses to outlet side with the inlet end of spirality from described passage
A kind of centrifugal blower, comprise casing, arrange motor on the housing and be connected to the impeller of described motor output end by transmission device, described impeller is the impeller as above described in any one.
As can be seen from technique scheme, impeller provided by the invention, comprise wheel hub and be uniformly distributed circumferentially the multiple blades at wheel hub one side surface, form runner between adjacent blades, the side surface of the wheel hub between adjacent blades is also provided with many water guiding strips be arranged side by side along runner; In running, the water guiding strip be in runner can stop Secondary Flow, and because water guiding strip is arranged along runner, Secondary Flow can under the effect of water guiding strip break-in consistent with main flow direction, thus reach Secondary Flow in suppression runner, avoid the generation in whirlpool, angle, improve the object of the efficiency of centrifugal blower.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of impeller in prior art;
The structural representation of the impeller that Fig. 2 provides for the embodiment of the present invention;
The plan view of the impeller that Fig. 3 provides for the embodiment of the present invention;
The plan view of the impeller that Fig. 4 provides for the embodiment of the present invention.
Embodiment
The invention provides a kind of impeller and centrifugal blower, Secondary Flow in runner can be suppressed to reach, avoid the generation in whirlpool, angle, improve the object of the efficiency of centrifugal blower.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only 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.
Refer to Fig. 2-Fig. 4, the structural representation of the impeller that Fig. 2 provides for the embodiment of the present invention; The plan view of the impeller that Fig. 3 provides for the embodiment of the present invention; The plan view of the impeller that Fig. 4 provides for the embodiment of the present invention.
A kind of impeller provided by the invention, comprise wheel hub 1 and be uniformly distributed circumferentially the multiple blades 2 at wheel hub 1 one side surface, form runner between adjacent blades 2, the side surface of the wheel hub 1 between adjacent blades 2 is also provided with many water guiding strips 3 be arranged side by side along runner.
Compared with prior art, impeller provided by the invention, in running, the water guiding strip 3 be in runner can stop Secondary Flow, and due to water guiding strip 3 along runner arrange, Secondary Flow can under the effect of water guiding strip 3 break-in consistent with main flow direction, thus reach suppression runner in Secondary Flow, avoid the generation in whirlpool, angle, improve the object of the efficiency of centrifugal blower.
Water guiding strip 3 can adopt various shape, such as rectangle, circle etc., in embodiments of the present invention, in order to reduce the impact of water guiding strip 3 for air-flow as far as possible, the cross section of water guiding strip 3 is triangle, and relative to other shapes, leg-of-mutton water guiding strip 3 sectional area is less, can be water guiding strip 3 stopping Secondary Flow while, the impact for air-flow main flow is reduced to minimum.
The size of water guiding strip 3 can adjust according to the size of impeller, and in inventive embodiments, the width of water guiding strip 3 is 0.5mm ~ 1mm, and the height of water guiding strip 3 is 1mm ~ 2mm.
In order to optimize technique scheme further, make water guiding strip 3 better can carry out stop break-in to Secondary Flow, in embodiments of the present invention, water guiding strip 3 extends to outlet side from the inlet end of runner, impeller is due to the reason of itself structure, runner between two blades 2 is convergence shape at inlet end, it is divergent shape in outlet side, therefore, when water guiding strip 3 extends to outlet side from the inlet end of runner, it can not be paved with whole runner, but because water guiding strip 3 just stops Secondary Flow from inlet end, changed course and water conservancy diversion, this structure for Secondary Flow stop and changed course can't play bad impact.
In order to improve the working efficiency of impeller, in embodiments of the present invention, blade 2 reverses to outlet side with the inlet end of spirality from passage
Present invention also offers a kind of centrifugal blower, comprise casing, be arranged on the motor on casing and be connected to the impeller of motor output end by transmission device, wherein, impeller is the impeller as above described in any one.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. an impeller, comprise wheel hub (1) and be uniformly distributed circumferentially the multiple blades (2) at described wheel hub (1) side surface, adjacent blades forms runner between (2), it is characterized in that, the side surface of the described wheel hub (1) between adjacent blades (2) is also provided with many water guiding strips be arranged side by side along described runner (3).
2. impeller according to claim 1, is characterized in that, the cross section of described water guiding strip (3) is triangle.
3. impeller according to claim 2, is characterized in that, the width of described water guiding strip (3) is 0.5mm ~ 1mm.
4. impeller according to claim 3, is characterized in that, the height of described water guiding strip (3) is 1mm ~ 2mm.
5. impeller according to claim 1, is characterized in that, described water guiding strip (3) extends to outlet side from the inlet end of described runner.
6. impeller according to claim 1, is characterized in that, described blade (2) reverses to outlet side with the inlet end of spirality from described passage.
7. a centrifugal blower, comprise casing, arrange motor on the housing and be connected to the impeller of described motor output end by transmission device, it is characterized in that, described impeller is the impeller as described in any one of claim 1-6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510415522.2A CN105065324A (en) | 2015-07-15 | 2015-07-15 | Impeller and centrifugal fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510415522.2A CN105065324A (en) | 2015-07-15 | 2015-07-15 | Impeller and centrifugal fan |
Publications (1)
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CN105065324A true CN105065324A (en) | 2015-11-18 |
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CN201510415522.2A Pending CN105065324A (en) | 2015-07-15 | 2015-07-15 | Impeller and centrifugal fan |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109099008A (en) * | 2018-09-29 | 2018-12-28 | 泛仕达机电股份有限公司 | A kind of band guiding device centrifugal wind wheel |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6019927A (en) * | 1997-03-27 | 2000-02-01 | Galliger; Nicholas | Method of casting a complex metal part |
CN201982335U (en) * | 2011-03-23 | 2011-09-21 | 浙江志江风机有限公司 | Low-noise and high-pressure centrifugal fan |
CN103195750A (en) * | 2013-04-22 | 2013-07-10 | 无锡科博增压器有限公司 | Efficient gas compressor vane wheel |
-
2015
- 2015-07-15 CN CN201510415522.2A patent/CN105065324A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6019927A (en) * | 1997-03-27 | 2000-02-01 | Galliger; Nicholas | Method of casting a complex metal part |
CN201982335U (en) * | 2011-03-23 | 2011-09-21 | 浙江志江风机有限公司 | Low-noise and high-pressure centrifugal fan |
CN103195750A (en) * | 2013-04-22 | 2013-07-10 | 无锡科博增压器有限公司 | Efficient gas compressor vane wheel |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109099008A (en) * | 2018-09-29 | 2018-12-28 | 泛仕达机电股份有限公司 | A kind of band guiding device centrifugal wind wheel |
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Application publication date: 20151118 |
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RJ01 | Rejection of invention patent application after publication |