CN210106244U - Centrifugal fan blade, centrifugal fan and air conditioner - Google Patents
Centrifugal fan blade, centrifugal fan and air conditioner Download PDFInfo
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- CN210106244U CN210106244U CN201921028439.XU CN201921028439U CN210106244U CN 210106244 U CN210106244 U CN 210106244U CN 201921028439 U CN201921028439 U CN 201921028439U CN 210106244 U CN210106244 U CN 210106244U
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Abstract
The utility model provides a centrifugal fan blade, a centrifugal fan and an air conditioner; wherein, centrifugal fan blade includes: a hub, a plurality of stiffening rings and a plurality of blades extending between the hub and the stiffening rings and/or between two of the stiffening rings; the projection of each blade on the surface of the hub is V-shaped. The utility model discloses centrifugal fan blade both can use clockwise and can use by the counter-clockwise, has improved assembly and maintenance efficiency from this, is favorable to promoting centrifugal fan variety and multifunctionality, guarantees that the amount of wind can not perpendicular spiral case and offset.
Description
Technical Field
The utility model relates to an air conditioner technical field particularly, relates to a centrifugation fan blade, centrifugal fan and air conditioner.
Background
Centrifugal fans are widely used in ventilation, dust removal and cooling processes in factories, mines, tunnels, cooling towers, vehicles, ships and buildings, for example, in ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliance equipment, and the like.
The existing centrifugal fan blade can be used only clockwise or anticlockwise in a single direction, the assembly is not easy to prevent errors during assembly, the assembly efficiency is low, the air outlet structure of the centrifugal fan shell is solidified, and the solidification of the air outlet structure directly causes the whole machine product using the centrifugal fan to lack diversification.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem be that current centrifugal fan blade is clockwise or anticlockwise folk prescription only to using, the good mistake proofing when the assembly leads to the assembly efficiency low, has also solidified the air-out structure of centrifugal fan shell simultaneously, leads to using this centrifugal fan's complete machine product to lack the diversification.
In order to solve the problem, the utility model provides a centrifugation fan blade, centrifugal fan and air conditioner.
A centrifugal fan blade comprising: a hub, a plurality of stiffening rings and a plurality of blades extending between the hub and the stiffening rings and/or between two of the stiffening rings; the projection of each blade on the surface of the hub is V-shaped.
Therefore, the centrifugal fan blade can be used in the clockwise direction and the anticlockwise direction, assembly and maintenance efficiency is improved, diversity and multifunctionality of the centrifugal fan are improved, and air volume is guaranteed not to be offset by being perpendicular to the volute.
Further, the plurality of blades are arranged at intervals along the circumferential direction of the reinforcing ring and the hub.
Furthermore, the distance between two adjacent blades is more than or equal to 12.5 mm. Therefore, the air quantity can be ensured not to be offset and influenced by the adjacent blades.
Furthermore, the centrifugal fan blade is provided with a rotating shaft, a shaft hole is formed in the center of the hub, and the rotating shaft penetrates through the shaft hole.
Further, each blade is inclined at an angle relative to the rotational axis.
Furthermore, each blade comprises a first blade section and a second blade section connected with the first blade section, and the first blade section and the second blade section are both curved surfaces. Therefore, the air quantity can be ensured not to be offset by being vertical to the volute.
Further, the radius of the curved surface is between 4mm and 10 mm.
Further, the height of the first blade section in the direction of the rotation axis is the same as the height of the second blade section in the direction of the rotation axis, and both are the same as the height of the blades in the direction of the rotation axis.
A centrifugal fan comprises a volute and centrifugal blades arranged in the volute.
An air conditioner comprises the centrifugal fan.
The utility model discloses centrifugal fan and air conditioner adopt in the same direction as, the rotatory centrifugal fan blade that all can use of anticlockwise, realize the two-way service function of centrifugal fan, have improved assembly and maintenance efficiency, are favorable to promoting variety and multifunctionality.
Drawings
Fig. 1 is a schematic structural view of a centrifugal fan blade of the present invention;
fig. 2 is another schematic structural view of the centrifugal fan blade of the present invention;
fig. 3 is a schematic view of the structure of the wheel hub and the fan blade of the present invention;
fig. 4 is a schematic structural view of the clockwise rotation according to the present invention;
fig. 5 is a schematic diagram of the structure of the utility model during counterclockwise rotation.
Description of reference numerals:
1-hub, 2, 3-reinforcing ring, 4-blade, 5-shaft hole, 6-first blade segment, 7-second blade segment, 8-blade end and 9-blade root.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The utility model provides a centrifugal fan blade, include: a hub, a plurality of stiffening rings and a plurality of blades extending between the hub and the stiffening rings and/or between two of the stiffening rings; each blade is a V-shaped blade, and the projection of each blade on the surface of the hub is V-shaped.
The blades of the centrifugal fan blade are arranged into a V-shaped structure, and the blades are V-shaped in the projection on the surface of the hub, so that the blades can be used in the clockwise direction and the anticlockwise direction, the assembly and maintenance efficiency is improved, the diversity and the versatility of the centrifugal fan are improved, and the air quantity can not be offset by being vertical to the volute.
Specifically, the whole of centrifugal fan blade is cylindric, the reinforcing ring is ring shape circle, wheel hub's shape is discoid, a plurality of blades are followed the reinforcing ring with wheel hub's circumference interval, evenly arrange. Because the blades are bidirectional blades, in order to ensure that the air quantity is not offset and influenced by the adjacent blades, the distance between the two adjacent blades is preferably more than or equal to 12.5 mm.
The centrifugal fan blade is provided with a rotating shaft, and the rotating shaft penetrates through the shaft hole, extends along the axial direction of the centrifugal fan blade and is perpendicular to the surface of the hub. In order to ensure that the air quantity cannot be offset by being vertical to the volute, each blade is a curved surface and inclines relative to the rotating shaft according to a certain angle, and the specific inclination angle can be set and adjusted according to needs.
Each blade comprises a first blade section and a second blade section connected with the first blade section, and the first blade section and the second blade section are both curved surfaces. Considering the wind direction, the radius of the curved surface is preferably 4mm to 10 mm. That is to say, the projections of the first blade segment and the second blade segment on the surface of the hub are both arc-shaped (the projections on the radial plane of the centrifugal fan blade are both arc-shaped), and the radius of the circle corresponding to the arc is preferably 4mm to 10 mm.
Further, the first blade segment and the second blade segment both include a blade end portion and a blade root portion, the blade end portion is located near the inner side of the centrifugal fan blade (i.e., near the middle of the centrifugal fan blade), and the blade root portion is located near the outer side of the centrifugal fan blade (i.e., near the edge of the centrifugal fan blade). The blade end part of the first blade segment is connected with the blade end part of the second blade segment, the blade root part of the first blade segment is separated from the blade root part of the second blade segment, and the distance between the first blade segment and the second blade segment is gradually increased from the blade end part to the blade root part to form the V-shaped blade.
The centrifugal fan blade of the present invention will be described in detail with reference to the accompanying drawings 1-5 and the embodiments.
In a specific embodiment, as shown in fig. 1 to 5, the centrifugal fan blade includes a hub 1, two reinforcing rings 2, 3, and a plurality of blades 4, wherein one reinforcing ring 2 is disposed on one side of the hub 1, the other reinforcing ring 3 is disposed on the other side of the hub 1, a part of the plurality of blades 4 extends between the reinforcing ring 2 and the hub 1, and another part of the plurality of blades 4 extends between the hub 1 and the reinforcing ring 3.
The centrifugal fan blade is integrally cylindrical, the hub 1 is disc-shaped, and the center of the hub is provided with a shaft hole 5 for penetrating through a rotating shaft 10 of the centrifugal fan blade. The rotating shaft 10 extends along the axial direction of the centrifugal fan blade and is perpendicular to the surface of the hub. The reinforcing rings 2 and 3 are circular ring-shaped rings and are coaxial with the hub 1 and arranged at intervals.
The two ends of the blade 4 in the axial direction are connected to either the reinforcing rings 2, 3 or the hub 1 so as to be fixed to the reinforcing rings 2, 3 and the hub 1. The projection of each blade 4 on the hub surface is V-shaped, that is, the projection of each blade 4 on the plane (the radial plane of the centrifugal fan blade) perpendicular to the axial direction is V-shaped, that is, the cross section of each blade 4 along the direction perpendicular to the axial direction is V-shaped. Through adopting the blade structure that the radial direction cross-section of centrifugal fan blade is the V style of calligraphy, both can clockwise use and anticlockwise use, need not the mistake proofing when the assembly, improved assembly and maintenance efficiency from this.
The blades 4 are arranged along the reinforcing rings 2 and 3 and the hub 1 at intervals and uniformly, and the distance d between every two adjacent blades is 12.5mm, so that the air quantity is prevented from being offset and influenced by the adjacent blades.
Each blade 4 is inclined at an angle with respect to the rotation axis 10. Each blade 4 comprises a first blade segment 6 and a second blade segment 7 connected with the first blade segment 6, and the first blade segment 6 and the second blade segment 7 are both curved surfaces, so that the air volume cannot be offset by being vertical to the volute. The radius r of the curved surface is 8mm, that is, the projections of the first blade segment 6 and the second blade segment 7 on the hub surface are both arc-shaped, and the radius of the circle corresponding to the arc is 8 mm.
The first blade segment 6 and the second blade segment 7 both comprise a blade end portion 8 and a blade root portion 9, the blade end portion 8 is located on the inner side of the centrifugal fan blade, and the blade root portion 9 is located on the outer side of the centrifugal fan blade. The blade end 8 of the first blade segment 6 is connected with the blade end 8 of the second blade segment 7, the blade root 9 of the first blade segment 6 is separated from the blade root 9 of the second blade segment 7, and the distance between the first blade segment 6 and the second blade segment 7 gradually increases from the blade end 8 to the blade root 9, so that the V-shaped blade is formed.
The height of the first blade segment 6 in the direction of the rotating shaft 10 of the centrifugal fan blade is the same as the height of the second blade segment 7 in the direction of the rotating shaft 10 of the centrifugal fan blade, and the heights of the first blade segment and the second blade segment are the same as the height of the blades 4 in the direction of the rotating shaft 10 of the centrifugal fan blade.
In addition, the number of the blades and the reinforcing rings is not limited to the specific number in the embodiment, and may be appropriately adjusted as needed.
The utility model discloses centrifugal fan blade, in the same direction as, the anticlockwise rotation is all usable, and the assembly need not the mistake proofing, has improved the manufacturing and has sold after repair efficiency, provides more probably for the design of fan spiral case simultaneously, has promoted centrifugal fan's multifunctionality and application universality.
The utility model also provides a centrifugal fan, it include the spiral case and install in centrifugation fan blade in the spiral case, the centrifugation fan blade is aforementioned centrifugation fan blade. The utility model discloses centrifugal fan adopts in the same direction as, the rotatory centrifugal fan blade that all can use of anticlockwise, realizes the two-way service function of centrifugal fan.
Furthermore, the utility model also provides an air conditioner, it includes the fan, the aforementioned centrifugal fan of fan.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. A centrifugal fan blade, comprising: a hub (1), a plurality of stiffening rings (2, 3) and a plurality of blades (4), the plurality of blades (4) extending between the hub (1) and the stiffening rings (2, 3) and/or between two of the stiffening rings (2, 3); the projection of each blade (4) on the surface of the hub is V-shaped.
2. The centrifugal fan blade according to claim 1, wherein the plurality of blades (4) are arranged at intervals along the circumferential direction of the reinforcing rings (2, 3) and the hub (1).
3. The centrifugal fan blade according to claim 2, wherein the distance d between two adjacent blades (4) is more than or equal to 12.5 mm.
4. The centrifugal fan blade according to claim 1, wherein the centrifugal fan blade has a rotating shaft (10), a shaft hole (5) is formed in the center of the hub (1), and the rotating shaft (10) is inserted into the shaft hole (5).
5. Centrifugal fan blade according to claim 4, wherein each blade (4) is inclined at an angle with respect to the axis of rotation (10).
6. The centrifugal fan blade according to claim 4, wherein each blade (4) comprises a first blade segment (6) and a second blade segment (7) connected to the first blade segment (6), and the first blade segment (6) and the second blade segment (7) are both curved surfaces.
7. The centrifugal fan blade according to claim 6, wherein the radius r of the curved surface is between 4mm and 10 mm.
8. The centrifugal fan blade according to claim 7, wherein the height of the first blade segment (6) in the direction of the rotation axis (10) is the same as the height of the second blade segment (7) in the direction of the rotation axis (10) and is the same as the height of the blades (4) in the direction of the rotation axis (10).
9. A centrifugal fan comprising a volute and a centrifugal fan blade mounted in the volute, wherein the centrifugal fan blade is as claimed in any one of claims 1 to 8.
10. An air conditioner including a fan, wherein the fan is the centrifugal fan of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921028439.XU CN210106244U (en) | 2019-07-03 | 2019-07-03 | Centrifugal fan blade, centrifugal fan and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921028439.XU CN210106244U (en) | 2019-07-03 | 2019-07-03 | Centrifugal fan blade, centrifugal fan and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106244U true CN210106244U (en) | 2020-02-21 |
Family
ID=69566266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921028439.XU Active CN210106244U (en) | 2019-07-03 | 2019-07-03 | Centrifugal fan blade, centrifugal fan and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106244U (en) |
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2019
- 2019-07-03 CN CN201921028439.XU patent/CN210106244U/en active Active
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