CN217152409U - Sawtooth type noise reduction axial flow impeller - Google Patents
Sawtooth type noise reduction axial flow impeller Download PDFInfo
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- CN217152409U CN217152409U CN202122620727.8U CN202122620727U CN217152409U CN 217152409 U CN217152409 U CN 217152409U CN 202122620727 U CN202122620727 U CN 202122620727U CN 217152409 U CN217152409 U CN 217152409U
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- impeller
- sawtooth
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Abstract
The utility model discloses an axial compressor impeller of making an uproar falls in sawtooth pattern, including zigzag impeller and high-efficient motor, the cover is equipped with zigzag impeller on the output shaft of high-efficient motor, and the equipartition has a plurality of zigzag blades on the zigzag impeller, and zigzag blade is the airfoil, and zigzag blade is equipped with the cockscomb structure at the edge of the side of giving vent to anger, and one side that zigzag impeller is close to high-efficient motor is the side of giving vent to anger. The utility model inhibits the laminar boundary layer separation of the air outlet side of the rotary blade through the zigzag structure at the edge of the air outlet side, and reduces the separation vortex strength, thereby realizing the purpose of noise reduction of the fan; the zigzag design can also change vortex shedding with concentrated frequency into discrete vortex shedding, thereby avoiding the generation of pure sound and realizing the purpose of noise frequency modulation. The utility model discloses a motor is aimed at to blade air-out direction, therefore can improve the motor radiating efficiency for the motor cooling.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a fan wheel's technical field, especially a technical field of axial compressor impeller of making an uproar falls in sawtooth pattern.
[ background of the invention ]
At present, the noise requirement of user when to the fan operation improves gradually to promote operational environment's quality, the blade in the current impeller is too single because of air inlet and air-out side structural shape, and the shape of the side of giving vent to anger of blade generally is sharp or the strait line shape structure in the current impeller, leads to the noise that the fan produced when the operation too high, in order to improve the current situation, needs the zigzag noise reduction axial compressor impeller that the performance is high, the noise is low.
[ Utility model ] content
The utility model aims to solve the problems in the prior art, and provides a sawtooth type noise reduction axial flow impeller, which inhibits the laminar boundary layer separation of the air outlet side of a rotating blade through the sawtooth structure at the edge of the air outlet side, reduces the separation vortex strength and realizes the purpose of noise reduction of a fan; the zigzag design can also change vortex shedding with concentrated frequency into discrete vortex shedding, thereby avoiding the generation of pure sound and realizing the purpose of noise frequency modulation. The utility model discloses a motor is aimed at to blade air-out direction, therefore can improve the motor radiating efficiency for the motor cooling.
In order to achieve the above object, the utility model provides an axial compressor impeller of making an uproar falls in sawtooth pattern, including zigzag impeller and high-efficient motor, the cover is equipped with zigzag impeller on the output shaft of high-efficient motor, and the equipartition has a plurality of zigzag blades on the zigzag impeller, and zigzag blade is the airfoil, and zigzag blade is equipped with the cockscomb structure at the edge of the side of giving vent to anger, and one side that zigzag impeller is close to high-efficient motor is the side of giving vent to anger.
Preferably, the sawtooth-shaped impeller comprises sawtooth-shaped blades and an impeller shell, wherein a plurality of sawtooth-shaped blades are uniformly distributed on the outer peripheral surface of the upper part of the impeller shell, and the sawtooth-shaped blades are obliquely fixed on the outer peripheral surface of the upper part of the impeller shell.
Preferably, the zigzag blade is of a twisted thin plate structure, and a long hole parallel to the outer eaves is formed in the outer edge of the zigzag blade.
Preferably, the impeller shell is of a cylindrical hollow shell structure, and the impeller shell is sleeved on an output shaft of the high-efficiency motor.
Preferably, the saw-tooth structure is formed by a succession of trapezoidal teeth.
The utility model has the advantages that: the utility model provides a can improve the axial compressor impeller of making an uproar falls in zigzag of fan performance, noise reduction, when being applied to in the place such as mill, mine, tunnel, cooling tower, vehicle, boats and ships and building, it is little to have the noise, characteristics such as motor radiating efficiency height and safe and reliable.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a front view of a saw-tooth noise-reducing axial-flow impeller of the present invention;
fig. 2 is a left side view of the saw-tooth noise-reducing axial-flow impeller of the present invention;
fig. 3 is an overall view of the sawtooth-shaped noise reduction axial flow impeller of the present invention.
In the figure: 101-sawtooth impeller, 102-high efficiency motor, 201-sawtooth blade, 202-long hole, 203-impeller shell, 204-sawtooth structure.
[ detailed description ] embodiments
Referring to fig. 1, fig. 2 and fig. 3, the utility model discloses, including zigzag impeller 101 and high-efficient motor 102, the cover is equipped with zigzag impeller 101 on the output shaft of high-efficient motor 102, and the equipartition has a plurality of zigzag blades 201 on zigzag impeller 101, and zigzag blades 201 is the wing, and zigzag blades 201 is equipped with sawtooth structure 204 at the edge of the side of giving vent to anger, and zigzag impeller 101 is close to one side of high-efficient motor 102 for the side of giving vent to anger.
Specifically, the sawtooth-shaped impeller 101 comprises sawtooth-shaped blades 201 and an impeller shell 203, wherein the sawtooth-shaped blades 201 are uniformly distributed on the outer peripheral surface of the upper part of the impeller shell 203, and the sawtooth-shaped blades 201 are obliquely fixed on the outer peripheral surface of the upper part of the impeller shell 203.
Specifically, the zigzag blade 201 is a twisted thin plate structure, and the outer edge of the zigzag blade 201 close to the outer edge is provided with a long hole 202 parallel to the outer brim.
Specifically, the impeller shell 203 is a cylindrical hollow shell structure, and the impeller shell 203 is sleeved on an output shaft of the high-efficiency motor 102.
Specifically, the sawtooth-shaped structure 204 is formed by continuous trapezoidal teeth.
The utility model discloses the working process:
the utility model relates to an axial compressor impeller of making an uproar falls in sawtooth pattern explains in the course of the work, combines the figure.
The sawtooth-shaped blades 201 are similar to the structure of the tail edge of a owl wing, the whole sawtooth-shaped blades 201 are in an airfoil shape, when the sawtooth-shaped blades 201 are used, the sawtooth-shaped blades 201 are obliquely arranged on the impeller shell 203, the sawtooth-shaped structures 204 are arranged on the air outlet side, and in the state of the attached drawing 2, air flows from the right side to the left side; on the other hand, the design of the saw-toothed structure 204 can also change vortex shedding with concentrated frequency into discrete vortex shedding, thereby avoiding the generation of pure sound and realizing the purpose of noise frequency modulation. In addition, during operation, the generated air flow is blown to the high-efficiency motor 102 from the zigzag blades 201, so that the cooling effect of the high-efficiency motor 102 is achieved.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (5)
1. The utility model provides a zigzag noise reduction axial compressor impeller which characterized in that: the high-efficiency air-out fan comprises a sawtooth-shaped impeller (101) and a high-efficiency motor (102), wherein the sawtooth-shaped impeller (101) is sleeved on an output shaft of the high-efficiency motor (102), a plurality of sawtooth-shaped blades (201) are uniformly distributed on the sawtooth-shaped impeller (101), the sawtooth-shaped blades (201) are wing-shaped, a sawtooth-shaped structure (204) is arranged on the edge of an air-out side of the sawtooth-shaped blades (201), and the air-out side is arranged on one side, close to the high-efficiency motor (102), of the sawtooth-shaped impeller (101).
2. A saw-tooth noise-reducing axial flow impeller according to claim 1, wherein: the sawtooth-shaped impeller (101) comprises sawtooth-shaped blades (201) and an impeller shell (203), wherein the sawtooth-shaped blades (201) are uniformly distributed on the outer peripheral surface of the upper part of the impeller shell (203), and the sawtooth-shaped blades (201) are obliquely fixed on the outer peripheral surface of the upper part of the impeller shell (203).
3. A saw-tooth noise-reducing axial-flow impeller according to claim 1 or 2, wherein: the zigzag blade (201) is of a twisted thin plate structure, and long-strip holes (202) parallel to the outer eaves are formed in the outer side edge of the zigzag blade (201) close to the outer edge.
4. A saw-tooth noise-reducing axial flow impeller according to claim 2, wherein: the impeller shell (203) is of a cylindrical hollow shell structure, and the impeller shell (203) is sleeved on an output shaft of the high-efficiency motor (102).
5. A saw-tooth noise-reducing axial flow impeller according to claim 1, wherein: the sawtooth-like structure (204) is formed by a succession of trapezoidal teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122620727.8U CN217152409U (en) | 2021-10-29 | 2021-10-29 | Sawtooth type noise reduction axial flow impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122620727.8U CN217152409U (en) | 2021-10-29 | 2021-10-29 | Sawtooth type noise reduction axial flow impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217152409U true CN217152409U (en) | 2022-08-09 |
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ID=82660630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122620727.8U Active CN217152409U (en) | 2021-10-29 | 2021-10-29 | Sawtooth type noise reduction axial flow impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217152409U (en) |
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2021
- 2021-10-29 CN CN202122620727.8U patent/CN217152409U/en active Active
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