CN220134273U

CN220134273U - Low-noise blower fan based on anti-clark ring

Info

Publication number: CN220134273U
Application number: CN202321589000.0U
Authority: CN
Inventors: 李朝勋
Original assignee: Suzhou Senyuan Tongwei Technology Co ltd
Current assignee: Suzhou Senyuan Tongwei Technology Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2023-12-05
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a low-noise blower fan based on an anti-Clark ring, which comprises an impeller, a plurality of fan blades, an anti-Clark mute ring and a motor, wherein the impeller comprises a motor, a stator, a rotor and a rotor; the fan blades are equidistantly combined on the outer wall of the impeller; an anti-clark mute ring, which is combined with the fan blade at the position far away from the outer edge of the impeller; the cross section of the anti-clark mute ring is of an anti-clark wing structure. The anti-clark silencing ring is formed by combining the fan blades on the outer wall of the impeller, combining the anti-clark silencing ring on the outer wall of the fan blades and combining the motor in the impeller, and adopts an anti-clark wing-shaped structure, so that the effect of gravity downward pressing can be formed in the rotation process of the fan blades and the anti-clark silencing ring according to the Bernoulli theorem, and the noise reduction effect is achieved.

Description

Low-noise blower fan based on anti-clark ring

Technical Field

The utility model relates to the technical field of blower fans, in particular to a low-noise blower fan based on a reverse Clark ring.

Background

The blower fan generally comprises an impeller, a fan blade and a motor, however, the sound of the conventional blower fan is gradually increased with the lapse of the service time, and noise is generated.

Disclosure of Invention

The utility model aims to solve the problem that the sound of a blower fan in the prior art is gradually increased to generate noise, and provides a low-noise blower fan based on an anti-Clark ring.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a low noise blower fan based on an anti-clark ring, comprising:

an impeller;

the fan blades are equidistantly combined on the outer wall of the impeller;

the anti-clark mute ring is combined with the fan blade at the position far away from the outer edge of the impeller, and the cross section of the anti-clark mute ring is in an anti-clark wing structure;

in the above scheme, according to bernoulli's theorem: ρva=constant, meaning that the mass of fluid flowing into the unit volume is equal to the mass of fluid flowing out of the unit volume, and the compressibility of the low-velocity flow void is ignored, i.e., ρ is constant, which results in an increase in the flow velocity across the upper surface of the airfoil, a decrease in the flow velocity across the lower surface of the airfoil, and an increase in the flow velocity according to bernoulli's theorem, the pressure potential of the corresponding fluid decreases, i.e., the downward static pressure of the upper surface fluid against the airfoil decreases, whereas the upward static pressure of the lower surface against the airfoil increases, and this pressure difference creates an aerodynamic effect against the airfoil, and the anti-clark silencing ring adopts an anti-clark wing structure, thereby creating a gravitational hold-down effect, and achieving a noise reduction effect.

And the motor is combined in the impeller.

Preferably, the anti-clark silence ring is comprised of a leading edge, a broadside, and a trailing edge.

Preferably, the leading edge, the broadside and the trailing edge are integrally formed.

Preferably, the leading edge is 0.6cm in size, the broadside is 2cm in size, and the trailing edge is 0.2cm in size.

The beneficial effects of the utility model are as follows:

according to the utility model, the anti-Clark silencing ring is formed by combining the fan blades on the outer wall of the impeller, combining the anti-Clark silencing ring on the outer wall of the fan blades and combining the motor in the impeller, and adopts an anti-Clark wing-shaped structure, so that the effect of gravity downward pressing can be formed in the rotation process of the fan blades and the anti-Clark silencing ring according to the Bernoulli theorem, and the noise reduction effect is achieved.

Drawings

FIG. 1 is a schematic view of a low noise blower fan based on an anti-Clark ring according to a first view angle;

FIG. 2 is a schematic view of a low noise blower fan based on an anti-Clark ring according to a second view angle;

fig. 3 is a schematic cross-sectional view of a reverse clark mute ring of a low-noise blower fan based on a reverse clark ring according to the present utility model.

In the figure: 1. an impeller; 2. a fan blade; 3. a reverse clark mute ring; 31. a leading edge; 32 broadsides, 33, trailing edges; 4. and a motor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Embodiment 1, referring to fig. 1-3, a low noise blower fan based on an anti-clark ring, comprising: an impeller 1, a plurality of fan blades 2, an anti-clark mute ring 3 and a motor 4;

an impeller 1;

the fan blades 2 are equidistantly combined on the outer wall of the impeller 1;

an anti-clark mute ring 3, wherein the anti-clark mute ring 3 is combined with the fan blades 2 at the position far away from the outer edge of the impeller 1;

the cross section of the anti-clark mute ring 3 is of an anti-clark wing structure.

In the above scheme, according to bernoulli's theorem: ρva=constant, meaning that the mass of fluid flowing into the unit volume is equal to the mass of fluid flowing out of the unit volume, and that the compressibility of the low-velocity flow void is ignored, i.e., ρ is constant, which results in an increase in the flow velocity across the upper surface of the airfoil, a decrease in the flow velocity across the lower surface of the airfoil, and an increase in the flow velocity according to bernoulli's theorem, the pressure potential of the corresponding fluid decreases, i.e., the downward static pressure of the upper surface fluid against the airfoil decreases, whereas the upward static pressure of the lower surface against the airfoil increases, and this pressure difference creates an aerodynamic effect against the airfoil, and the anti-clark silencing ring 3 adopts an anti-clark wing structure, thereby creating a gravitational hold-down effect, and achieving a noise reduction effect.

Preferably, the anti-clark mute ring 3 is formed by a front edge 31, a wide edge 32 and a rear edge 33.

Preferably, the front edge 31, the wide edge 32 and the rear edge 33 are integrally formed. Preferably, the front edge 31 is 0.6cm in size, the wide edge 32 is 2cm in size, and the rear edge 33 is 0.2cm in size

Working principle: the anti-clark mute ring 3 is combined with the outer wall of the impeller 1, the anti-clark mute ring 3 is combined with the outer wall of the fan blade 2, the motor 4 is combined with the impeller 1, the anti-clark mute ring 3 adopts an anti-clark wing structure, and the effect of gravity downward pressing can be formed in the rotation process of the fan blade 2 and the anti-clark mute ring 3 according to the Bernoulli theorem, so that the noise reduction effect is achieved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A low noise blower fan based on an anti-clark ring, comprising:

an impeller (1);

the fan blades (2) are equidistantly combined on the outer wall of the impeller (1);

the anti-clark silencing ring (3) is combined with the fan blades (2) at the position far away from the outer edge of the impeller (1), and the cross section of the anti-clark silencing ring (3) is of an anti-clark wing structure;

and a motor (4), wherein the motor (4) is combined in the impeller (1).

2. The anti-clark ring based low noise blower fan of claim 1 wherein the anti-clark ring (3) is comprised of a leading edge (31), a trailing edge (33), and a broad edge (32).

3. A low noise blower fan based on an anti-clark ring as claimed in claim 2, wherein the leading edge (31), the broadside (32) and the trailing edge (33) are of integrally formed construction.

4. A low noise blower fan based on an anti-clark ring as claimed in claim 2, wherein the front edge (31) is 0.6cm in size, the broadside (32) is 2cm in size and the rear edge (33) is 0.2cm in size.