CN216478029U - Front edge band saw tooth fan blade for fan - Google Patents
Front edge band saw tooth fan blade for fan Download PDFInfo
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- CN216478029U CN216478029U CN202123292017.3U CN202123292017U CN216478029U CN 216478029 U CN216478029 U CN 216478029U CN 202123292017 U CN202123292017 U CN 202123292017U CN 216478029 U CN216478029 U CN 216478029U
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- blade
- fan
- sawtooth
- impeller
- sawtooth blade
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Abstract
The utility model relates to a fan technical field specifically discloses a leading edge band saw tooth fan blade for fan, including the fan blade body, the center department of fan blade body is provided with the impeller, the pivot through-hole has been seted up to the center department of impeller, the outside of impeller is provided with a plurality of evenly distributed's sawtooth blade, a plurality of cockscomb structure recess has been seted up to the leading edge of sawtooth blade. The utility model discloses a plurality of cockscomb structure grooves are arranged on the front edge of the sawtooth blade, and the front edge of the sawtooth blade is made into cockscomb structure, thus effectively reducing the impact of the airflow on the front edge of the blade and reducing the energy consumption loss when the fan runs; and the formation of vortex can be reduced, and the noise of the vortex is reduced, so that the noise of the fan is reduced.
Description
Technical Field
The utility model relates to a fan technical field, in particular to a leading edge band saw tooth fan blade for fan.
Background
The axial flow fan has a very wide application, namely, the axial flow fan and the fan blade have the same direction of air flow, such as an electric fan, and an air conditioner outer machine fan is an axial flow type running fan. The "axial flow" is so called because the gas flows parallel to the fan axis. Axial fans are generally used in situations where the flow requirements are high and the pressure requirements are low, and axial fans are widely used in the fields of air conditioning, ventilation and the like. The axial fan fixes a position and moves air. The axial flow fan mainly comprises a fan impeller and a casing. However, the existing fan impeller has the following defects: 1. when the airflow enters the impeller, the airflow and the front edge (airflow inlet) of the blade can generate impact action, so that energy consumption is reduced; 2. when the airflow and the front edge of the blade have impact action, vortex is formed, vortex noise is caused, and the noise of the fan is increased.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is to provide a front edge band saw blade for a fan, which is provided with a plurality of saw-toothed grooves on the front edge of the saw-toothed blade, so that the front edge of the saw-toothed blade is made into a saw-toothed shape, thereby effectively reducing the impact of the airflow on the front edge of the blade and reducing the energy consumption loss when the fan operates; and the formation of the eddy can be reduced, and the eddy noise is reduced, so that the noise of the fan is reduced.
In order to solve the technical problem, the technical scheme of the utility model is that:
the utility model provides a leading edge band saw tooth fan blade for fan, includes the fan blade body, the center department of fan blade body is provided with the impeller, the pivot through-hole has been seted up to the center department of impeller, the outside of impeller is provided with a plurality of evenly distributed's sawtooth blade, a plurality of cockscomb structure recess has been seted up to the leading edge of sawtooth blade.
Preferably, the outer side of the impeller is sleeved with a blade connecting piece, and the blade connecting piece is respectively connected with the impeller and the sawtooth blades.
Preferably, the sawtooth blade includes first sawtooth blade, second sawtooth blade, third sawtooth blade, fourth sawtooth blade and fifth sawtooth blade, first sawtooth blade, second sawtooth blade, third sawtooth blade, fourth sawtooth blade and fifth sawtooth blade all encircle equidistantly in proper order the impeller distributes and sets up.
Preferably, the outer side edge of the first saw-tooth blade, the outer side edge of the second saw-tooth blade, the outer side edge of the third saw-tooth blade, the outer side edge of the fourth saw-tooth blade and the outer side edge of the fifth saw-tooth blade are all bent upwards.
Preferably, the blade connecting piece is fixedly connected with the impeller through a screw, and the blade connecting piece is riveted with the sawtooth blade.
Preferably, the rear edge of the sawtooth blade is provided with an arc-shaped groove.
Adopt above-mentioned technical scheme, the utility model provides a pair of a leading edge band saw tooth fan blade for fan has following beneficial effect: the impeller is arranged at the center of the fan blade body in the fan blade with the saw-tooth-shaped front edge, the rotating shaft through hole is formed in the center of the impeller, the plurality of saw-tooth-shaped blades which are uniformly distributed are arranged on the outer side of the impeller, the plurality of saw-tooth-shaped grooves are formed in the front edges of the saw-tooth-shaped blades, and the front edges of the saw-tooth-shaped blades are made into saw teeth, so that the impact effect of airflow on the front edges of the blades can be effectively reduced, the energy consumption loss of a fan during operation is reduced, and the efficiency is improved; and the formation of reducible vortex reduces the vortex noise to reduce fan noise, can be applied to axial fan, user experience is effectual.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
in the figure, 1-a fan blade body, 2-an impeller, 3-a rotating shaft through hole, 4-a sawtooth blade, 5-a sawtooth groove, 6-a blade connecting piece, 7-a first sawtooth blade, 8-a second sawtooth blade, 9-a third sawtooth blade, 10-a fourth sawtooth blade, 11-a fifth sawtooth blade, 12-a screw and 13-an arc groove.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
As shown in fig. 1-2, the front edge band saw blade for a fan comprises a blade body 1, an impeller 2 is arranged at the center of the blade body 1, a rotating shaft through hole 3 is formed at the center of the impeller 2, a plurality of saw-tooth blades 4 which are uniformly distributed are arranged on the outer side of the impeller 2, and a plurality of saw-tooth grooves 5 are formed in the front edge of each saw-tooth blade 4. It can be understood that the type of the blade with the saw teeth on the front edge is an axial flow blade, and the blade is applied to an axial flow fan, the axial flow fan is used for air cooling and heat dissipation of an air conditioning module unit, and the blade is an operation part on the axial flow fan.
Specifically, the outer side of the impeller 2 is sleeved with a blade connecting piece 6, and the blade connecting piece 6 is respectively connected with the impeller 2 and the sawtooth blades 4; the sawtooth blade 4 comprises a first sawtooth blade 7, a second sawtooth blade 8, a third sawtooth blade 9, a fourth sawtooth blade 10 and a fifth sawtooth blade 11, and the first sawtooth blade 7, the second sawtooth blade 8, the third sawtooth blade 9, the fourth sawtooth blade 10 and the fifth sawtooth blade 11 are distributed around the impeller 2 at equal intervals in sequence; the outer side edge of the first sawtooth blade 7, the outer side edge of the second sawtooth blade 8, the outer side edge of the third sawtooth blade 9, the outer side edge of the fourth sawtooth blade 10 and the outer side edge of the fifth sawtooth blade 11 are all bent upwards; the blade connecting piece 6 is fixedly connected with the impeller 2 through a screw, and the blade connecting piece 6 is connected with the sawtooth blade 4 in a spot welding way; the rear edge of the sawtooth blade 4 is provided with an arc-shaped groove 13. It can be understood that when the blade with saw teeth on the front edge rotates, the airflow enters from the front edge of the saw blade 4 and then flows out from the rear edge of the saw blade 4. This fan blade body 1, impeller 2, sawtooth blade 4 and blade connecting piece 6 all can be stainless steel or aluminum alloy material etc. and this blade connecting piece 6 adopts the steel sheet preparation, and sawtooth blade 4 can pass through rivet and 6 riveting etc. of blade connecting piece.
It can be understood that the utility model relates to a rationally, the structure is unique, and this leading edge band saw tooth fan blade has following advantage:
1. the front edge of the sawtooth blade 4 is made into a sawtooth shape, and airflow enters from the front edge of the sawtooth blade 4, so that the impact effect of the airflow and the front edge of the blade can be effectively reduced, the energy consumption loss of the fan during operation is reduced, and the working efficiency of the fan is improved;
2. the front edge of the sawtooth blade 4 is made into sawtooth shape, which can reduce the formation of vortex and reduce the noise of the vortex, thereby reducing the noise of the fan.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (6)
1. The utility model provides a leading edge band saw tooth fan blade for fan, includes the fan blade body, its characterized in that: the fan blade is characterized in that an impeller is arranged at the center of the fan blade body, a rotating shaft through hole is formed in the center of the impeller, a plurality of saw-tooth blades which are uniformly distributed are arranged on the outer side of the impeller, and a plurality of saw-tooth grooves are formed in the front edges of the saw-tooth blades.
2. The leading edge blade with sawteeth for the fan as claimed in claim 1, wherein: the outer side of the impeller is sleeved with a blade connecting piece, and the blade connecting piece is connected with the impeller and the sawtooth blades respectively.
3. The leading edge blade with sawteeth for the fan as claimed in claim 1, wherein: the sawtooth blade includes first sawtooth blade, second sawtooth blade, third sawtooth blade, fourth sawtooth blade and fifth sawtooth blade, first sawtooth blade, second sawtooth blade, third sawtooth blade, fourth sawtooth blade and fifth sawtooth blade all encircle in proper order equidistant ground the impeller distributes and sets up.
4. The leading edge blade with sawteeth for the fan as claimed in claim 3, wherein: the outer side edge of the first sawtooth blade, the outer side edge of the second sawtooth blade, the outer side edge of the third sawtooth blade, the outer side edge of the fourth sawtooth blade and the outer side edge of the fifth sawtooth blade are all bent upwards.
5. The leading edge blade with sawteeth for the fan as claimed in claim 2, wherein: the blade connecting piece is fixedly connected with the impeller through screws, and the blade connecting piece is riveted with the sawtooth blades.
6. The leading edge blade with sawteeth for the fan as claimed in claim 1, wherein: the rear edge of the sawtooth blade is provided with an arc-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123292017.3U CN216478029U (en) | 2021-12-25 | 2021-12-25 | Front edge band saw tooth fan blade for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123292017.3U CN216478029U (en) | 2021-12-25 | 2021-12-25 | Front edge band saw tooth fan blade for fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478029U true CN216478029U (en) | 2022-05-10 |
Family
ID=81428212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123292017.3U Active CN216478029U (en) | 2021-12-25 | 2021-12-25 | Front edge band saw tooth fan blade for fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478029U (en) |
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2021
- 2021-12-25 CN CN202123292017.3U patent/CN216478029U/en active Active
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