CN212407120U - Impeller structure and cooling fan with same - Google Patents
Impeller structure and cooling fan with same Download PDFInfo
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- CN212407120U CN212407120U CN202021581999.0U CN202021581999U CN212407120U CN 212407120 U CN212407120 U CN 212407120U CN 202021581999 U CN202021581999 U CN 202021581999U CN 212407120 U CN212407120 U CN 212407120U
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Abstract
The utility model discloses a fan wheel structure and have its radiator fan, fan wheel structure includes the impeller and installs a plurality of flabellum groups on the impeller, the impeller including relative first surface that sets up, and with the side of the peripheral axial extension of first surface, the flabellum group includes first flabellum group and second flabellum group, first flabellum group includes a plurality of first flabellums that outwards extend along the impeller side and close on first surface distribution along the axial, second flabellum group includes a plurality of second flabellums that outwards extend along the impeller side and keep away from first surface distribution along the axial. The utility model discloses a fan wheel structure adopts the composite construction of multilayer flabellum, can improve the efficiency of fan by a wide margin.
Description
Technical Field
The utility model belongs to the technical field of radiator fan, concretely relates to impeller structure and have its radiator fan.
Background
With the improvement of the performance of computer components, the heat energy generated during the operation of the computer components is relatively increased, wherein the highest heat energy is generated by the cpu and the data storage device (such as a hard disk), and if the generated high heat cannot be dissipated in time, the normal operation performance of the computer components will be affected by light persons, and the computer components will be burnt and damaged by heavy persons, so how to effectively dissipate the heat becomes a very important issue in the development of computers today.
The currently applied heat dissipation kit includes two types, namely liquid cooling type and air cooling type, but the two most important heat dissipation components are fans, especially fans applied to notebook computers or servers, and because of space limitation, the number of fans cannot be increased, so how to increase the efficiency of an existing fan has become the key point of great research and development of each fan industry.
In the prior art, a fan wheel is usually installed in a housing, and the fan wheel comprises an impeller and a plurality of fan blades installed on the periphery of the impeller, but the fan wheel based on the fan blades and the impeller has a single design shape, is low in heat dissipation efficiency, and cannot meet the requirement of high performance.
Therefore, in order to solve the above technical problems, it is necessary to provide a fan wheel structure and a heat dissipation fan having the same.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fan wheel structure and have its radiator fan to improve fan efficiency.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
the utility model provides a fan wheel structure, fan wheel structure includes the impeller and installs a plurality of fan blade groups on the impeller, the impeller including relative setting the first surface, and with the side of the peripheral axial extension of first surface, fan blade group includes first fan blade group and second fan blade group, first fan blade group includes a plurality of first flabellum that outwards extend along the impeller side and close to first surface distribution along the axial, second fan blade group includes a plurality of second flabellums that outwards extend along the impeller side and keep away from first surface distribution along the axial.
In one embodiment, the width of the first blade in the axial direction is greater than the width of the second blade in the axial direction.
In one embodiment, the side surface of the impeller is provided with an extension part which extends outwards and is annular, and the second fan blade is fixedly arranged on the periphery of the extension part.
In one embodiment, the axial width of the second blade is greater than the thickness of the extension portion, the second blade is fixedly mounted on the periphery of the extension portion, and the radial length of the second blade is less than the radial length of the first blade.
In one embodiment, the second fan blade is provided with a plurality of protrusions facing the first fan blade group.
In one embodiment, the axial projections of the first fan blade and the second fan blade are distributed in a cross manner, and the axial projections of the ends of the first fan blade and the second fan blade far away from the impeller are distributed on the same circumference.
In one embodiment, the fan blade set further includes a third fan blade set installed on the side surface of the impeller and located between the first fan blade set and the second fan blade set, and the third fan blade set includes a plurality of third fan blades extending outwards along the side surface of the impeller.
In one embodiment, the axial width of the third blade is smaller than the axial width of the first blade, and the axial width of the third blade is smaller than the axial width of the second blade.
In one embodiment, the axial projections of the first fan blade, the second fan blade and the third fan blade are distributed in a cross manner, and the axial projections of the end parts of the first fan blade, the second fan blade and the third fan blade far away from the impeller are distributed on the same circumference.
The utility model discloses another embodiment provides a technical scheme as follows:
a heat radiation fan comprises a shell and the fan wheel structure, wherein an air inlet opposite to the fan wheel structure is formed in the shell.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses a fan wheel structure adopts the composite construction of multilayer flabellum, can improve the efficiency of fan by a wide margin.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a fan wheel structure in embodiment 1 of the present invention;
fig. 2 is a schematic perspective view of a fan wheel structure in embodiment 2 of the present invention;
fig. 3 is a schematic perspective view of a fan wheel structure in embodiment 3 of the present invention.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiments, and the structural, method, or functional changes made by those skilled in the art according to the embodiments are all included in the scope of the present invention.
The utility model discloses a fan wheel structure, including the impeller and install a plurality of flabellum groups on the impeller, the impeller including relative first surface that sets up, and with the side of the peripheral axial extension of first surface, the flabellum group includes first flabellum group and second flabellum group, first flabellum group includes a plurality of first flabellums that outwards extend along the impeller side and close on first surface distribution along the axial, second flabellum group includes a plurality of second flabellums that outwards extend along the impeller side and keep away from first surface distribution along the axial.
Furthermore, the fan blade group also comprises a third fan blade group which is arranged on the side surface of the impeller and is positioned between the first fan blade group and the second fan blade group, and the third fan blade group comprises a plurality of third fan blades which extend outwards along the side surface of the impeller.
The present invention will be further described with reference to the following specific examples.
Example 1:
referring to fig. 1, the impeller structure in this embodiment includes an impeller 10 and a plurality of impeller sets mounted on the impeller, the impeller 10 includes a first surface 11 disposed opposite to each other and a side surface 12 extending axially from a periphery of the first surface, the impeller set 20 includes a first impeller set and a second impeller set, the first impeller set includes a plurality of first blades 21 extending outward along the side surface of the impeller and distributed near the first surface along the axial direction, and the second impeller set includes a plurality of second blades 22 extending outward along the side surface of the impeller and distributed far away from the first surface along the axial direction.
Preferably, in this embodiment, the width (width in the axial direction) of first blade 21 is greater than the width (width in the axial direction) of second blade 22, the axial projections of first blade 21 and second blade 22 are distributed in a crossed manner, and the axial projections of the ends of first blade 21 and second blade 22 far away from the impeller are distributed on the same circumference.
In this embodiment, the first fan blade 21 is bent from the side surface of the impeller in the counterclockwise direction and then in the clockwise direction, and the second fan blade 22 is bent from the side surface of the impeller in the counterclockwise direction and then in the clockwise direction, but the included angle between the first fan blade and the side surface of the impeller is larger than the included angle between the second fan blade and the side surface of the impeller, and the bending amplitude of the first fan blade is larger than the bending amplitude of the second fan blade.
Specifically, in the present embodiment, 90 first blades 21 and 90 second blades 22 are taken as an example for description, and the number of the first blades and the second blades may be designed according to needs in other embodiments.
Example 2:
referring to fig. 2, the impeller structure in this embodiment includes an impeller 10 and a plurality of impeller sets mounted on the impeller, the impeller 10 includes a first surface 11 disposed opposite to each other and a side surface 12 extending axially from a peripheral edge of the first surface, and the side surface 12 of the impeller is provided with an extending portion 13 extending outward and forming a ring shape.
The fan blade set 20 includes a first fan blade set and a second fan blade set, the first fan blade set includes a plurality of first fan blades 21 extending outward along the side of the impeller and distributed near the first surface along the axial direction, the second fan blade set is fixedly mounted on the periphery of the extending portion 13 and includes a plurality of second fan blades 22 extending outward along the extending portion and distributed far away from the first surface along the axial direction, in this embodiment, the length of the second fan blade 22 along the radial direction is smaller than the length of the first fan blade 21 along the radial direction.
In this embodiment, the second fan blade 22 is provided with a plurality of protrusions 221 facing the first fan blade set.
Preferably, in this embodiment, the width (width in the axial direction) of the first blade 21 is greater than the width (width in the axial direction) of the second blade 22, the width of the second blade 22 is greater than the thickness of the extension portion 13, the second blade 22 is fixedly mounted on the periphery of the extension portion 13, the axial projections of the first blade 21 and the second blade 22 are distributed in a cross manner, and the end portions of the first blade 21 and the second blade 22 are distributed in a circular shape.
In the embodiment, the first blade 21 is bent from the side of the impeller along the counterclockwise direction first and then along the clockwise direction, and the second blade 22 is bent from the side of the extension portion 13 along the clockwise direction.
Specifically, in the present embodiment, 90 first blades 21 and 90 second blades 22 are taken as an example for description, and the number of the first blades and the second blades may be designed according to needs in other embodiments.
Example 3:
referring to fig. 3, the impeller structure in this embodiment includes an impeller 10 and a plurality of impeller sets mounted on the impeller, the impeller 10 includes a first surface 11 disposed opposite to each other and a side surface 12 extending axially from a peripheral edge of the first surface, and the side surface 12 of the impeller is provided with an extending portion 13 extending outward and forming a ring shape.
The fan blade set 20 includes a first fan blade set, a second fan blade set and a third fan blade set, the third fan blade set is located between the first fan blade set and the second fan blade set, the first fan blade set includes a plurality of first fan blades 21 which extend outwards along the side face of the impeller and are distributed near the first surface along the axial direction, the second fan blade set is fixedly installed on the periphery of the extension portion 13, the second fan blade set includes a plurality of second fan blades 22 which extend outwards along the extension portion and are distributed far away from the first surface along the axial direction, and the third fan blade set includes a plurality of third fan blades 23 which extend outwards along the side face of the impeller.
Preferably, in this embodiment, the width (width in the axial direction) of the third blade 23 is smaller than the width (width in the axial direction) of the first blade 21 and the second blade 22, the width of the second blade 22 is larger than the thickness of the extension portion 13, the second blade 22 is fixedly mounted on the periphery of the extension portion 13, axial projections of the first blade 21, the second blade 22 and the third blade 23 are distributed in a cross manner, and axial projections of ends of the first blade 21, the second blade 22 and the third blade 23, which are far away from the impeller, are distributed on the same circumference.
In this embodiment, the first blade 21 is bent from the side surface of the impeller in the counterclockwise direction and then bent in the clockwise direction, the third blade 23 is bent from the side surface of the impeller in the counterclockwise direction and then bent in the clockwise direction, but an included angle between the first blade and the side surface of the impeller is larger than an included angle between the third blade and the side surface of the impeller, a bending amplitude of the first blade is larger than a bending amplitude of the third blade, and the second blade 22 is bent from the side surface of the extension portion 13 in the clockwise direction.
Specifically, in the present embodiment, 90 first blades 21, 90 second blades 22 and 90 third blades 23 are taken as an example for description, and the number of the first blades, the second blades and the third blades may be designed according to needs in other embodiments.
The fan wheel structure in the embodiments can be applied to a heat dissipation fan, the heat dissipation fan comprises a housing and the fan wheel structure, and the housing is provided with an air inlet arranged opposite to the fan wheel structure. The heat dissipation fan can be applied to various electronic devices, such as notebook computers or servers.
Experiments prove that the fan blade structure in the embodiments can have better efficiency, and the efficiency can be improved by 5% -30% compared with that of a single fan blade (only the first fan blade).
According to the technical scheme provided by the utility model, the utility model discloses following beneficial effect has:
the utility model discloses a fan wheel structure adopts the composite construction of multilayer flabellum, can improve the efficiency of fan by a wide margin.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a fan wheel structure, its characterized in that, fan wheel structure includes the impeller and installs a plurality of fan blade groups on the impeller, the impeller including relative setting the first surface, and with the peripheral axial extension's of first surface side, fan blade group includes first fan blade group and second fan blade group, first fan blade group includes a plurality of first flabellum that extend outwards along the impeller side and close to first surface distribution along the axial, second fan blade group includes a plurality of second flabellums that extend outwards along the impeller side and keep away from first surface distribution along the axial.
2. The impeller structure of claim 1, wherein the width of the first blade in the axial direction is greater than the width of the second blade in the axial direction.
3. The impeller structure of claim 1, wherein the side of the impeller is provided with an extension portion extending outward in a ring shape, and the second blades are fixedly mounted on the periphery of the extension portion.
4. The impeller structure of claim 3, wherein the axial width of the second blade is greater than the thickness of the extension portion, the second blade is fixedly mounted on the periphery of the extension portion, and the radial length of the second blade is less than the radial length of the first blade.
5. The impeller structure of claim 4, wherein the second impeller has a plurality of protrusions facing the first impeller.
6. The impeller structure of claim 1 or 3, wherein the axial projections of the first and second blades are distributed crosswise, and the axial projections of the ends of the first and second blades far from the impeller are distributed on the same circumference.
7. The impeller structure of claim 1 or 3 wherein the set of blades further comprises a third set of blades mounted to the side of the impeller and located between the first set of blades and the second set of blades, the third set of blades comprising a plurality of third blades extending outwardly along the side of the impeller.
8. The impeller structure of claim 7, wherein the width of the third impeller in the axial direction is smaller than the width of the first impeller in the axial direction, and the width of the third impeller in the axial direction is smaller than the width of the second impeller in the axial direction.
9. The impeller structure of claim 7, wherein the axial projections of the first blade, the second blade and the third blade are distributed in a cross manner, and the axial projections of the ends of the first blade, the second blade and the third blade far from the impeller are distributed on the same circumference.
10. A heat dissipation fan, comprising a housing and the impeller structure of any one of claims 1 to 9, wherein the housing is provided with an air inlet opposite to the impeller structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021581999.0U CN212407120U (en) | 2020-08-03 | 2020-08-03 | Impeller structure and cooling fan with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021581999.0U CN212407120U (en) | 2020-08-03 | 2020-08-03 | Impeller structure and cooling fan with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212407120U true CN212407120U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021581999.0U Active CN212407120U (en) | 2020-08-03 | 2020-08-03 | Impeller structure and cooling fan with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212407120U (en) |
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- 2020-08-03 CN CN202021581999.0U patent/CN212407120U/en active Active
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