CN213899386U - Axial flow impeller and fan - Google Patents
Axial flow impeller and fan Download PDFInfo
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- CN213899386U CN213899386U CN202022123536.6U CN202022123536U CN213899386U CN 213899386 U CN213899386 U CN 213899386U CN 202022123536 U CN202022123536 U CN 202022123536U CN 213899386 U CN213899386 U CN 213899386U
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Abstract
The application provides an axial flow impeller and fan relates to fan technical field. An axial flow impeller comprising: a central disk; a transition ring disposed around the central disk and spaced from an outer edge of the central disk; the first blades are uniformly distributed along the periphery of the central disc, the first end of each first blade is fixed to the outer edge of the central disc, and the second ends of the first blades are connected to the surface of the transition ring on one side close to the central disc. The application provides a set up the outflow that the transition ring can block wind outside first blade among the axial impeller to avoid centrifugal force's production, and then reduce the influence in axial impeller flow field, prevented that the fan import department from air inlet all around or the phenomenon of exit from air-out all around, avoided the problem of the middle air inlet difficulty of axial impeller, thereby improve axial impeller's performance, make whole fan can not take place the problem that the performance descends in the use.
Description
Technical Field
The application relates to the technical field of fans, in particular to an axial flow impeller and a fan.
Background
Currently, axial flow impellers are provided at the inlet or outlet of the fan for admitting or removing wind into or from the fan.
In the prior art, blades in the axial flow impeller can enable the wind on the inner side to flow outside in the rotating process to form wind with radial flow, so that centrifugal force can be formed, the flow field of the axial flow impeller is further influenced, and the performance of the fan is reduced.
Therefore, how to reduce the centrifugal force and reduce the influence on the flow field of the axial-flow impeller becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The purpose of the embodiment of the application is to provide an axial flow impeller and a fan, so as to reduce centrifugal force and reduce the influence on the flow field of the axial flow impeller.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
the present application provides in a first aspect an axial flow impeller comprising:
a central disk;
a transition ring disposed around the central disk and spaced from an outer edge of the central disk;
the first blades are uniformly distributed along the periphery of the central disc, the first end of each first blade is fixed to the outer edge of the central disc, and the second ends of the first blades are connected to the surface of the transition ring on one side close to the central disc.
In the technical scheme, the method further comprises the following steps:
a plurality of second vanes fixed at intervals on the surface of the transition ring on the side far from the central disk.
In this technical solution, the number of the first blades is different from the number of the second blades.
In this technical scheme, each first blade is the curved surface structure, and the deformation degree of each first blade is different, and a plurality of first blades have along clockwise or anticlockwise deformation trend.
In this technical solution, each of the second blades is a non-planar structure, the deformation degree of each of the second blades is different, and the plurality of second blades have a deformation tendency in a clockwise direction or a counterclockwise direction.
In this solution, the deformation tendency of the plurality of first blades is the same as the deformation zone tendency of the plurality of second blades.
In this embodiment, the second ends of the first blades are detachably connected to the surface of the transition ring on the side close to the central disk.
In this technical solution, a plurality of the second blades are uniformly arranged on the surface of the transition ring on the side away from the central disk.
In this solution, the central disc is a cylindrical hub;
the transition ring is of a cylindrical structure.
The second aspect of the present application provides a fan comprising an axial impeller as described above, thus comprising all the technical features and advantages of an axial impeller.
Compared with the prior art, the application provides an axial flow impeller and a fan, wherein the axial flow impeller comprises a central disc, a transition ring and a plurality of first blades, the transition ring is sleeved outside the central disc, the plurality of first blades are arranged between the central disc and the transition ring, one end of each first blade is connected with the outer edge of the central disc, the other end of each first blade is connected with the inner surface of the transition ring, therefore, in the process of rotating the axial flow impeller, when the first blade rotates to cause the wind at the inner side to flow towards the outer side, the transition ring disposed outside the first blades may block the outflow of wind, thereby preventing the generation of centrifugal force, thereby reducing the influence on the flow field of the axial flow impeller, preventing the phenomenon that air enters from the periphery at the inlet of the fan or exits from the periphery, avoiding the problem of difficult air inlet in the middle of the axial flow impeller, thereby improving the performance of the axial flow impeller and preventing the performance of the whole fan from being reduced in the using process.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
fig. 1 schematically illustrates a structural schematic view of an axial flow fan provided by the present application;
fig. 2 schematically illustrates a disassembled structural schematic view of the axial flow fan provided by the present application;
the reference numbers of the present application illustrate:
axial flow impeller 1, central disc 12, transition ring 14, first blade 16, second blade 18.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
As shown in fig. 1 and 2, the present application provides an axial-flow impeller 1 including:
a central disc 12;
a transition ring 14, the transition ring 14 disposed about the central disk 12 and spaced from an outer edge of the central disk 12;
a plurality of first vanes 16, a plurality of the first vanes 16 are evenly distributed along the outer periphery of the central disk 12, a first end of each of the first vanes 16 is fixed with the outer edge of the central disk 12, and a second end of each of the first vanes 16 is connected with the surface of the transition ring 14 on the side close to the central disk 12.
In the axial flow impeller 1 provided by the first aspect of the present application, the axial flow impeller 1 includes a central disc 12, a transition ring 14 and a plurality of first blades 16, the transition ring 14 is sleeved outside the central disc 12, the plurality of first blades 16 are disposed between the central disc 12 and the transition ring 14 at intervals, one end of each first blade 16 is connected to the outer edge of the central disc 12, and the other end is connected to the inner surface of the transition ring 14, so that in the rotation process of the axial flow impeller 1, when the first blades 16 rotate to cause the inside wind to flow to the outside, the transition ring 14 disposed outside the first blades 16 can block the outflow of the wind, thereby avoiding the generation of centrifugal force, further reducing the influence on the flow field of the axial flow impeller 1, preventing the phenomenon that the fan enters the wind from the periphery or exits from the periphery, avoiding the problem of difficult air intake in the middle of the axial flow impeller 1, and further improving the performance of the axial flow impeller 1, the problem of performance reduction of the whole fan in the using process is solved.
And a plurality of first blades 16 and even distribution have guaranteed the stability of whole axial compressor impeller 1 in the periphery of central disk 12 to guaranteed the performance of axial compressor impeller 1, make whole fan can not be because of changeing unstable and appearing the problem in the use.
As shown in fig. 1 and 2, in an embodiment of the present application, the method further includes:
a plurality of second vanes 18, wherein the plurality of second vanes 18 are fixed at intervals on the surface of the transition ring 14 on the side far away from the central disk 12.
In this embodiment, axial flow impeller 1 still includes a plurality of second blades 18, the surface at transition ring 14 is fixed at a plurality of second blade 18 intervals, thereby after axial flow impeller 1 begins to work, first blade 16 rotates and can drive transition ring 14 fixed with it together and rotate, thereby drive a plurality of second blades 18 fixed with transition ring 14 and rotate, the transmission to the wind can further be strengthened to the rotation of second blade 18, thereby improve axial flow impeller 1's rotation effect, and then promote the performance of axial flow impeller 1 and fan.
As shown in fig. 1 and 2, in one embodiment of the present application, the number of the first blades 16 is different from the number of the second blades 18.
In this embodiment, the plurality of first blades 16 and the plurality of second blades 18 are respectively located inside the transition ring 14 and outside the transition ring 14, since the first blades 16 and the second blades 18 are separately arranged, the number of the first blades 16 and the number of the second blades 18 can be respectively set, the number of the first blades 16 and the number of the second blades 18 do not need to be completely the same, the number of the first blades 16 and the structure of the second blades 18 also do not need to be completely the same, so that different numbers of the first blades 16 and the second blades 18 and different structures of the first blades 16 and the second blades 18 can be set according to different conditions, so as to meet different performance requirements according to specific conditions.
Optionally, the number of the first blades 16 is different from the number of the second blades 18, so that the effect achieved after the first blades 16 are rotated is different from the effect achieved after the second blades 18 are rotated, thereby meeting the requirements of different situations.
Alternatively, the number of first blades 16 is the same as the number of second blades 18, so that the first blades 16 and the second blades 18 rotate in a same step.
Preferably, the number of the first blades 16 is 3, and the number of the second blades 18 is 5, although the number of the first blades 16 and the second blades 18 may be other numbers as long as it is suitable for production and application.
As shown in fig. 1 and 2, in one embodiment of the present application, each of the first blades 16 has a curved surface structure, and each of the first blades 16 deforms to a different extent, and a plurality of the first blades 16 have a deformation tendency in a clockwise direction or a counterclockwise direction.
In this embodiment, the first blades 16 are curved structures, so that the first blades 16 arranged in a curved manner can enable wind to flow smoothly and smoothly in the rotating process, and according to different requirements, each first blade 16 is of a different structure, the deformation degree of each first blade 16 is different, the deformation trend of the plurality of first blades 16 is set in a clockwise or counterclockwise direction, so that in the rotating process of the plurality of first blades 16, the wind can flow in one direction, the effect of the first blades 16 is achieved, a flow field of the axial flow impeller 1 is formed, and the performance of the axial flow impeller 1 is ensured.
Preferably, the first blade 16 has an airfoil or circular arc configuration to facilitate smooth flow of wind driven by the rotation of the first blade 16.
In one embodiment of the present application, each of the second blades 18 has a non-planar structure, each of the second blades 18 deforms to a different degree, and a plurality of the second blades 18 have a tendency to deform in a clockwise direction or a counterclockwise direction.
In this embodiment, the second blade 18 is the curved surface structure, thereby the second blade 18 that the curved surface set up can make wind more level and smooth flowing through at the rotation in-process, and according to the demand of difference, every second blade 18 is different structure, every second blade 18's deformation degree is different, the deformation trend of a plurality of second blades 18 sets up along clockwise or anticlockwise, thereby at the pivoted in-process of a plurality of second blades 18, can make wind flow through along a direction, thereby accomplish the effect of second blade 18, form axial compressor impeller 1's flow field, thereby guarantee axial compressor impeller 1's performance.
Preferably, the second blade 18 has an airfoil or circular arc configuration, thereby facilitating the rotation of the second blade 18 to drive the smooth flow of wind.
In one embodiment of the present application, the deformation tendency of a plurality of the first blades 16 is the same as the deformation zone tendency of a plurality of the second blades 18.
In this embodiment, the plurality of first blades 16 may have a deformation tendency in a clockwise direction or a counterclockwise direction, the plurality of second blades 18 may also have a deformation tendency in a clockwise direction or a counterclockwise direction, and the deformation tendencies of the plurality of first blades 16 and the plurality of second blades 18 are the same, so that the plurality of first blades 16 and the plurality of second blades 18 all rotate in the same direction, thereby achieving the normal operation of the axial flow impeller 1.
In this embodiment, the deformation degree of the plurality of first blades 16 and the plurality of second blades 18 is related to the flow rate of the wind required by the axial flow impeller 1 or other factors, so that the deformation degree of the specific plurality of first blades 16 and the specific plurality of second blades 18 is set according to the specific situation, that is, the angles and the widths of the first blades 16 and the second blades 18 are set according to the requirement, and optionally, the deformation degree of the angles and the widths of the first blades 16 and the second blades 18 is a non-gradual transition.
In one embodiment of the present application, as shown in fig. 1 and 2, the second end of the first vane 16 is removably attached to the surface of the transition ring 14 on the side adjacent to the central disk 12.
In this embodiment, the second ends of the first blades 16 are detachably connected to the surface of the transition ring 14 on the side close to the central disk 12, so that the first blades 16 and the central disk 12 can be detached at any time, and when the first blades 16, the central disk 12, the transition ring 14 or the second blades 18 are damaged, the whole axial-flow impeller 1 does not need to be replaced or repaired, and only one of the first blades 16 and the central disk 12 or one of the transition ring 14 and the second blades 18 needs to be replaced or repaired, thereby saving the cost. And during the carrying process, the second ends of the first blades 16 are detachably connected to the surface of the transition ring 14 close to one side of the central disc 12, so that the first blades 16 and the central disc 12 or the transition ring 14 and the second blades 18 can be detached, and the carrying is convenient.
As shown in fig. 1 and 2, in one embodiment of the present application, a plurality of the first blades 16 are uniformly disposed on the outer edge of the central disk 12;
a plurality of the second vanes 18 are uniformly disposed on a surface of the transition ring 14 on a side away from the central disk 12.
In this embodiment, the first blades 16 are uniformly distributed on the periphery of the central disc 12, and the second blades 18 are uniformly distributed on the surface of the transition ring 14 on the side far from the central disc 12, so as to ensure the stability of the whole axial flow impeller 1, and ensure the performance of the axial flow impeller 1, so that the whole fan cannot have problems due to unstable rotation in the use process.
In one embodiment of the present application, the central disc 12 is a cylindrical hub.
In this embodiment, the central disc 12 is disposed at the center of the whole axial-flow impeller 1, the cylindrical structure can better ensure that the plurality of first blades 16 are uniformly disposed at the edge thereof, and the cylindrical structure can ensure that the plurality of first blades 16 can stably rotate.
In one embodiment of the present application, the transition ring 14 is cylindrical in configuration, as shown in fig. 1 and 2.
In this embodiment, the transition ring 14 is a cylindrical structure, and the transition ring 14 with the cylindrical structure can prevent the outflow of wind generated when the first blade 16 rotates, so as to avoid the generation of centrifugal force, further reduce the influence on the flow field of the axial-flow impeller 1, further improve the performance of the axial-flow impeller 1, and prevent the performance of the whole fan from being reduced in the using process. The cylindrical transition ring 14 can ensure that the plurality of second blades 18 are uniformly arranged on the edge of the transition ring, and the cylindrical structure can ensure that the plurality of second blades 18 can stably rotate.
On the other hand, the present application also provides a fan comprising an axial impeller 1 as described above, thus comprising all the technical features and advantages of the axial impeller 1 as described above.
The application provides a fan, which comprises an axial flow impeller, wherein the axial flow impeller comprises a central disc, a transition ring and a plurality of first blades, the transition ring is sleeved outside the central disc, the plurality of first blades are arranged between the central disc and the transition ring, one end of each first blade is connected with the outer edge of the central disc, the other end of each first blade is connected with the inner surface of the transition ring, therefore, in the process of rotating the axial flow impeller, when the first blade rotates to cause the wind at the inner side to flow towards the outer side, the transition ring disposed outside the first blades may block the outflow of wind, thereby preventing the generation of centrifugal force, thereby reducing the influence on the flow field of the axial flow impeller, preventing the phenomenon that air enters from the periphery at the inlet of the fan or exits from the periphery, avoiding the problem of difficult air inlet in the middle of the axial flow impeller, thereby improving the performance of the axial flow impeller and preventing the performance of the whole fan from being reduced in the using process.
In this embodiment, the fan with this axial-flow impeller 1 can be used for subway air conditioner to prevent that import department is air inlet all around or export and the fan performance that causes for the air-out all around from declining, thereby promote the performance of fan.
The application provides an axial flow impeller and a fan, wherein the axial flow impeller comprises a central disc, a transition ring and a plurality of first blades, the transition ring is sleeved outside the central disc, the plurality of first blades are arranged between the central disc and the transition ring, one end of each first blade is connected with the outer edge of the central disc, the other end of each first blade is connected with the inner surface of the transition ring, therefore, in the process of rotating the axial flow impeller, when the first blade rotates to cause the wind at the inner side to flow towards the outer side, the transition ring disposed outside the first blades may block the outflow of wind, thereby preventing the generation of centrifugal force, thereby reducing the influence on the flow field of the axial flow impeller, preventing the phenomenon that air enters from the periphery at the inlet of the fan or exits from the periphery, avoiding the problem of difficult air inlet in the middle of the axial flow impeller, thereby improving the performance of the axial flow impeller and preventing the performance of the whole fan from being reduced in the using process.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An axial flow impeller, comprising:
a central disk;
a transition ring disposed around the central disk and spaced from an outer edge of the central disk;
the first blades are uniformly distributed along the periphery of the central disc, the first end of each first blade is fixed to the outer edge of the central disc, and the second ends of the first blades are connected to the surface of the transition ring on one side close to the central disc.
2. The axial flow impeller of claim 1, further comprising:
a plurality of second vanes fixed at intervals on the surface of the transition ring on the side far from the central disk.
3. The axial flow impeller according to claim 2,
the number of the first blades is different from the number of the second blades.
4. The axial flow impeller according to claim 2,
each first blade is of a curved surface structure, the deformation degree of each first blade is different, and the first blades have a deformation tendency in a clockwise direction or a counterclockwise direction.
5. The axial flow impeller according to claim 4,
each second blade is of a non-planar structure, the deformation degree of each second blade is different, and the second blades have the deformation tendency in the clockwise direction or the anticlockwise direction.
6. The axial flow impeller according to claim 5,
the deformation trend of a plurality of the first blades is the same as the deformation area trend of a plurality of the second blades.
7. The axial flow impeller according to claim 1,
the second ends of the first vanes are detachably connected to the surface of the transition ring on the side close to the central disc.
8. The axial flow impeller according to claim 2,
the second blades are uniformly arranged on the surface of the transition ring on the side far away from the central disc.
9. The axial flow impeller according to claim 1,
the central disc is a cylindrical hub;
the transition ring is of a cylindrical structure.
10. A fan comprising an axial flow impeller according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022123536.6U CN213899386U (en) | 2020-09-24 | 2020-09-24 | Axial flow impeller and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022123536.6U CN213899386U (en) | 2020-09-24 | 2020-09-24 | Axial flow impeller and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213899386U true CN213899386U (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022123536.6U Active CN213899386U (en) | 2020-09-24 | 2020-09-24 | Axial flow impeller and fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213899386U (en) |
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2020
- 2020-09-24 CN CN202022123536.6U patent/CN213899386U/en active Active
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