CN213775825U - Noise-reduction wind guide ring and fan using same - Google Patents

Abstract

The utility model discloses a fan that makes an uproar wind-guiding circle and use it falls should lead the wind circle and be used for the fan, including wind-guiding circle body, amortization subassembly and the subassembly of making an uproar that falls, amortization subassembly set up in the rear end portion of the wind-guiding face of wind-guiding circle body, and set up along circumference for consume fan moving whirl noise, the subassembly of making an uproar that falls is a plurality of, and evenly encircle and set up on the cambered surface structure of wind-guiding circle body. The utility model can effectively consume the rotational flow noise when the fan operates by arranging the noise reduction component on the wind guide ring body, and can achieve the noise reduction effect by arranging the noise reduction component on the cambered surface structure of the wind guide ring body; the utility model discloses an use in the fan and fall the wind-guiding circle of making an uproar, effectively reduced the noise of fan operation, promoted user experience.

Description

Noise-reduction wind guide ring and fan using same

Technical Field

The utility model relates to a wind-guiding circle technical field, concretely relates to wind-guiding circle of making an uproar and use its fan fall.

Background

At present, the range hood becomes one of the essential appliances in modern household kitchen supplies. For users, the air volume and the smoking effect of the cigarette making machine are concerned, the noise of the cigarette making machine is also very concerned, and the cigarette making machine which generates excessive noise is usually not approved by consumers; and the noise also can give the healthy influence of user when influencing user's use experience, so fall the problem that makes an urgent need to solve to industry technical staff to fall the noise to range hood.

For the range hood, during normal use and operation, noise mainly comes from a fan system. The impeller of the air duct system rotates in an accelerating way to enable the air flow to flow fast, and the air flow rubs with the blades of the impeller to generate noise; in addition, the internal space of the volute is limited, and when the airflow flows at high speed and impacts the inner wall body of the volute, the generated noise is large. Moreover, the user environment of the existing high-rise building leads to higher and higher demands on the air performance of the range hood, the air inlet structure of the range hood is optimized according to corresponding needs, the air quantity of the range hood is increased simultaneously, the rotating speed of the motor is correspondingly increased, the rotating speed of the impeller of the range hood is also increased, the generated air flow is larger and more urgent, and meanwhile, the noise generated by the range hood is increased.

The existing methods for reducing the noise of the range hood are various, for example, the method for reducing the noise of the range hood is realized by adjusting the distance between a fan and an air inlet, or the noise is optimized by adjusting the area of the air inlet, and the noise is reduced by adding sound-absorbing materials in an air duct of the range hood. The solution of adding sound absorbing material is more effective at present, but the noise reduction effect still needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a wind-guiding circle of making an uproar falls through set up the amortization subassembly on wind-guiding circle body and fall the subassembly of making an uproar, noise when can effectively eliminating the fan operation, the noise reduction effect is better.

The utility model discloses a fan of using above-mentioned wind-guiding circle of making an uproar falls is provided.

The utility model adopts the technical proposal that:

the noise-reduction wind guide ring comprises a wind guide ring body, a noise reduction assembly and a noise reduction assembly, wherein the noise reduction assembly is arranged at the rear end of a wind guide surface of the wind guide ring body and is arranged along the circumferential direction and used for consuming rotational flow noise generated by running of a fan, and the noise reduction assemblies are arranged on an arc surface structure of the wind guide ring body in an evenly surrounding manner.

Preferably, the silencing component is of a semi-ring structure, and first silencing holes are uniformly formed in the silencing component.

Preferably, the first silencing hole is a circular through hole, the diameter of the first silencing hole is 0.7-0.9 mm, and the through hole rate of the silencing component is 3-4%.

Preferably, the noise reduction assembly is arranged on the inner wall of the wind guide ring body.

Preferably, the noise reduction assembly includes a raised structure having a cavity therein.

Preferably, the noise reduction assembly further comprises second muffling holes uniformly arranged on the protruding structure.

Preferably, the second silencing hole is a circular through hole, the diameter of the second silencing hole is 0.7-0.9 mm, and the through hole rate of the protruding structure is 3-4%.

Preferably, the protruding structure comprises a first sound-absorbing plate, a second sound-absorbing plate and a third sound-absorbing plate, the first sound-absorbing plate, the second sound-absorbing plate and the third sound-absorbing plate are not coplanar and connected in pairs, and the first sound-absorbing plate, the second sound-absorbing plate and the third sound-absorbing plate are connected with the inner wall of the air guide ring body together to form a cavity.

Preferably, the noise reduction assembly comprises a noise reduction block with a sheet structure, and a third noise reduction hole is formed in the noise reduction block.

Preferably, the noise reduction block is obliquely arranged on the air guide ring body, and an included angle between the noise reduction block and the circumferential direction of the air guide ring body is 20-50 degrees.

Preferably, the noise reduction block is vertically arranged on the wind guide ring body.

Preferably, the third sound-absorbing hole is a circular through hole, the diameter of the third sound-absorbing hole is 0.7-0.9 mm, and the through hole rate of the noise-reducing block is 3-4%.

Preferably, the number of the noise reduction assemblies is 16-20.

Preferably, a plurality of through mounting holes are uniformly formed on the front end edge side of the air guide ring body.

The utility model discloses still protect a fan, this fan include spiral case subassembly, motor, wind wheel and the aforesaid wind-guiding circle of making an uproar that falls, the spiral case subassembly includes spiral case face lid, spiral case bottom, spiral case bounding wall and spiral case air outlet flange, the motor sets up on the spiral case bottom, the wind wheel set up in the motor shaft, wind-guiding circle body set up in the air inlet position department of spiral case face lid.

Compared with the prior art, the utility model has the advantages that the noise reduction component is arranged on the wind guide ring body, so that the rotational flow noise generated during the operation of the fan can be effectively consumed, meanwhile, the noise reduction component is arranged on the cambered surface structure of the wind guide ring body, so that the noise reduction effect can be achieved, and after the two components are combined, the noise reduction capability is strong, and the noise reduction effect is good; the utility model discloses an use in the fan and fall the wind-guiding circle of making an uproar, effectively reduced the noise of fan operation, promoted user experience.

Drawings

Fig. 1 is a three-dimensional structure diagram of a noise reduction wind guide ring provided in embodiment 1 of the present invention;

fig. 2 is a three-dimensional structure diagram of another visual angle of the noise reduction wind guiding ring provided in embodiment 1 of the present invention;

FIG. 3 is an enlarged view of the structure A of FIG. 2;

fig. 4 is a top view of a noise reduction wind guiding ring provided in embodiment 1 of the present invention;

fig. 5 is a cross-sectional view of a noise reduction wind guiding ring provided in embodiment 1 of the present invention;

FIG. 6 is an enlarged view of the structure B of FIG. 3;

fig. 7 is a structural diagram of a noise reduction box in a noise reduction wind guide ring provided in embodiment 1 of the present invention;

fig. 8 is a structural diagram of a noise reduction box in a noise reduction wind guide ring at another visual angle according to the embodiment of the present invention 1;

FIG. 9 is an enlarged view of the structure C of FIG. 8;

fig. 10 is a structural diagram of an inclined arrangement of noise reduction blocks in a noise reduction wind guide ring according to the embodiment of the present invention 2;

fig. 11 is a top view of an inclined arrangement of noise reduction blocks in a noise reduction wind guide ring according to the embodiment of the present invention 2;

fig. 12 is a side view of an inclined arrangement of noise reduction blocks in a noise reduction wind guide ring according to embodiment 2 of the present invention;

FIG. 13 is an enlarged view of structure D of FIG. 12;

fig. 14 is a cross-sectional view of an inclined arrangement of noise reduction blocks in a noise reduction wind guide ring according to embodiment 2 of the present invention;

FIG. 15 is an enlarged view of structure E of FIG. 6;

fig. 16 is a three-dimensional structure diagram of a noise reduction block in a noise reduction wind guide ring provided in the embodiment of the present invention;

fig. 17 is a top view of a noise reduction block in the noise reduction wind guide ring according to the embodiment of the present invention 2;

fig. 18 is a cross-sectional view of a noise reduction block in a noise reduction wind guide ring according to an embodiment of the present invention vertically disposed;

FIG. 19 is an enlarged view of the F structure of FIG. 19;

fig. 20 is a sectional view of a fan provided in embodiment 3 of the present invention;

fig. 21 is a structural diagram of a fan according to embodiment 3 of the present invention.

In the figure: 1. a wind guide ring body; 11. mounting holes; 2. a noise reduction assembly; 21. a first muffling hole; 3. a noise reduction assembly; 31. a raised structure; 311. a first acoustical panel; 312. a second acoustical panel; 313. a third sound-deadening panel; 32. a second muffling hole; 33. a noise reduction block; 331. a third muffling hole; 4. a volute assembly; 41. a volute face cover; 42. a volute bottom cover; 43. a volute casing coaming; 44. a volute outlet flange; 5. a motor; 6. and a wind wheel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

The embodiment 1 of the utility model provides a wind-guiding circle of making an uproar falls for the fan, as shown in fig. 1-fig. 9, including wind-guiding circle body 1, amortization subassembly 2 and noise reduction component 3, amortization subassembly 2 set up in the rear end portion of the wind-guiding face of wind-guiding circle body 1, and set up along circumference for consume fan moving whirl noise, noise reduction component 3 is a plurality of, and evenly encircle set up in on the cambered surface structure of wind-guiding circle body 1.

Specifically, the noise reduction component 2 is arranged at the end part of the air guide ring body 1, which is positioned in the fan, and is circumferentially arranged, the noise reduction component 3 is uniformly arranged on the cambered surface structure of the air guide ring body 1, and the connecting part is matched with the air guide ring body 1;

wherein, the air inlet surface of the air guide ring is used as the front surface.

Like this, the whirl noise when amortization subassembly 2 can consume the fan operation, and noise reduction assembly 3 can reduce the noise of fan operation, and both combine, and is better to the noise reduction of fan.

In specific implementation, a plurality of through mounting holes 11 are uniformly formed on the front end edge side of the air guide ring body 1.

In specific implementation, the number of the noise reduction assemblies 3 is 16-20.

In particular implementation, as shown in fig. 1 and 2, the sound attenuating assembly 2 may be of an annular configuration or a semi-annular configuration.

As shown in fig. 1, 5 and 6, the silencing component 2 is a half-ring structure, and first silencing holes 21 are uniformly formed in the silencing component 2.

Thus, when the noise generated during the operation of the fan passes through the first muffling opening 21, a part of the noise can be consumed, that is, the rotational flow noise generated during the operation of the fan can be consumed by the muffling assembly 2.

In order to ensure the silencing effect of the first silencing hole 21, the first silencing hole 21 is a circular through hole, the diameter of the first silencing hole is 0.7-0.9 mm, and the through hole rate of the silencing component 2 is 3-4%.

In order to enhance the noise reduction effect, the noise reduction component 3 is arranged on the inner wall of the air guide ring body 1.

Like this, will fall the noise component 3 and set up on the inner wall of wind-guiding circle body 1, can be closer to fan noise source more, make the noise reduction effect of inhaling of noise component 3 more obvious, it is more outstanding to fall the ability of making an uproar.

In particular implementation, as shown in fig. 3, 4, 7-9, the noise reduction assembly 3 includes a raised structure 31 having a cavity therein.

In order to enhance the noise reduction effect, the noise reduction assembly 3 further includes second noise reduction holes 32 uniformly disposed on the protruding structure 31.

Thus, a part of the noise is consumed through the second muffling hole 32, and then the noise enters the cavity of the protrusion structure 31, that is, the internal space of the protrusion structure 31, thereby generating a sound mixing effect, and the noise is interfered with each other and consumed again, thereby achieving the purpose of reducing the noise.

In order to ensure the silencing effect of the second silencing hole 32, the second silencing hole 32 is a circular through hole, the diameter of the through hole is 0.7-0.9 mm, and the through hole rate of the protrusion structure 31 is 3-4%.

Thus, the sound-deadening effect of the projection structure 31 is optimal.

In a specific implementation, as shown in fig. 7 to 9, the protruding structure 31 includes a first sound-absorbing plate 311, a second sound-absorbing plate 312, and a third sound-absorbing plate 313, where the first sound-absorbing plate 311, the second sound-absorbing plate 312, and the third sound-absorbing plate 313 are not coplanar and connected in pairs, and the three are connected to the inner wall of the air guide ring body 1 together to form a cavity.

Specifically, the first silencing plate 311, the second silencing plate 312 and the third silencing plate 313 are connected in pairs to form a three-sided three-dimensional shape, a cavity is formed in the middle of the three-sided three-dimensional shape, the first silencing plate 311, the second silencing plate 312 and the third silencing plate 313 are arranged on the inner wall of the air guide ring body 1, the edges of the three plates are tightly connected with the cambered surface structure of the air guide ring body 1, and the first silencing plate 311, the second silencing plate 312 and the third silencing plate 313 are all provided with second silencing holes 32.

Moreover, when the protruding structure 31 is arranged on the inner wall of the wind guide ring body 1, the end face of the wind wheel is closer to the noise source, and the noise reduction effect is better.

Like this, the noise is consumed a part when the second bloop 32 on protruding structure 31, then enters into the inner space of protruding structure 31, forms and mixes the striking each other, and the equilibrium of sound source frequency is destroyed, produces the audio mixing effect promptly, and the noise is mutual interference, is consumed again, reaches the purpose of making an uproar of falling.

However, the protruding structure 31 is not limited to the three-dimensional structure, and the protruding structure 31 having a cavity and capable of achieving a noise reduction effect is suitable for the present embodiment.

The working principle is as follows: the wind-guiding circle of making an uproar that falls of this embodiment is when using, and the whirl noise when amortization subassembly 2 can consume the fan operation, and fan moving noise is when falling noise subassembly 3 through the process, is consumed partly through second bloop 32, then when entering into protruding structure 31's cavity, also when the inner space that also gets into protruding structure 31, produces the audio mixing effect, and the noise mutual interference is consumed once more to reach the purpose of making an uproar that falls.

In the embodiment, the noise reduction component is arranged on the air guide ring body, so that rotational flow noise generated when the fan operates can be effectively consumed, meanwhile, the noise reduction component is arranged on the cambered surface structure of the air guide ring body, so that the noise reduction effect can be achieved, and after the noise reduction component and the air guide ring body are combined, the noise reduction capability is strong, and the noise reduction effect is good;

in addition, in the embodiment, the noise reduction assembly is arranged to be the protruding structure with the cavity, and the second muffling hole is arranged on the protruding structure, so that part of noise can be consumed by the second muffling hole, and then when the noise enters the cavity of the protruding structure, a sound mixing effect is generated, and the noise is interfered with each other and is consumed again;

simultaneously this embodiment will fall the noise subassembly and set up on the inner wall of wind-guiding circle body, make the noise subassembly of falling more be close to the source that the noise produced, the noise reduction effect is better.

Example 2

The embodiment 2 of the utility model provides a wind-guiding circle of making an uproar falls, the wind-guiding circle of making an uproar falls of this embodiment and the structure of the wind-guiding circle of making an uproar of embodiment 1 is equivalent, and the difference is that this embodiment improves the subassembly of making an uproar.

As shown in fig. 10 to 19, the noise reduction assembly 3 includes a noise reduction block 33 having a sheet structure, and a third noise reduction hole 331 is provided in the noise reduction block 33.

Specifically, the noise reduction blocks 33 are arranged on the inner wall of the air guide surface of the air guide ring body 1, the number of the noise reduction blocks is 16-20 on average, one end of each noise reduction block 33 is tightly connected with the air guide surface of the air guide ring body 1, and the noise reduction blocks 33 are uniformly provided with third noise reduction holes 331.

Like this, the noise reduction piece 33 is close with the terminal surface of wind wheel, more is close to the noise source, and through setting up third noise sound hole 331, when the noise that the fan produced passes through third noise sound hole 331, is consumed partly, so noise reduction piece 33 can consume the fan whirl noise when operation effectively, obtains outstanding noise reduction effect from this.

In order to enhance the noise reduction effect, as shown in fig. 12 to 14, the noise reduction block 33 is obliquely arranged on the air guide ring body 1, and an included angle between the noise reduction block 33 and the circumferential direction of the air guide ring body 1 is 20 to 50 °.

Like this, the trompil face of making an uproar piece 33 falls is closer with the planar angle of fan, and the effect of noise consumption is better.

In specific implementation, as shown in fig. 16 to 19, the noise reduction block 33 is vertically disposed on the air guide ring body 1, that is, the noise reduction block 33 is perpendicular to the plane of the fan, so that the swirling noise generated during the operation of the fan can be better consumed.

In order to ensure the noise reduction effect of the third noise reduction hole 331, the third noise reduction hole 331 is a circular through hole, the diameter of the third noise reduction hole 331 is 0.7-0.9 mm, and the through hole rate of the noise reduction block 33 is 3-4%.

The working principle is as follows: when the noise reduction air guide ring of the embodiment is used, the noise reduction component 2 can consume rotational flow noise generated when the fan operates, and meanwhile, when the noise generated when the fan operates passes through the noise reduction component 3, the third sound absorption hole 331 in the noise reduction block 33 can consume the noise, so that the noise reduction effect is obtained.

In the embodiment, the noise reduction component is arranged on the air guide ring body, so that rotational flow noise generated when the fan operates can be effectively consumed, meanwhile, the noise reduction component is arranged on the cambered surface structure of the air guide ring body, so that the noise reduction effect can be achieved, and after the noise reduction component and the air guide ring body are combined, the noise reduction capability is strong, and the noise reduction effect is good;

in the embodiment, the noise reduction effect is achieved through the third sound absorption hole in the noise reduction block, meanwhile, the noise reduction block is obliquely arranged, and the included angle between the noise reduction block and the circumferential direction of the air guide ring body is 20-50 degrees, so that the angle between the opening surface of the noise reduction block and the plane of the fan is closer, and the noise consumption effect is better;

in the embodiment, the noise reduction block can be vertically arranged on the wind guide ring body, so that a good noise reduction effect is achieved.

Example 3

The embodiment 3 of the utility model provides a fan, as shown in fig. 20 and fig. 21, this fan includes spiral case subassembly 4, motor 5, wind wheel 6 and the wind-guiding circle of making an uproar that falls that embodiment 1 or embodiment 2 provided, spiral case subassembly 4 includes spiral case face lid 41, spiral case bottom 42, spiral case bounding wall 43 and spiral case air outlet flange 44, motor 5 sets up on spiral case bottom 42, wind wheel 4 set up in the motor 5 is changeed epaxially, wind-guiding circle body 1 set up in the air inlet position department of spiral case face lid 41.

In specific implementation, a motor bracket is arranged on the volute bottom cover 42, and the motor 5 is fixedly arranged on the motor bracket.

In specific implementation, the fan can be used for a range hood.

This embodiment is through using in the fan to fall the wind-guiding circle of making an uproar, and the noise reduction component who falls in the wind-guiding circle of making an uproar can effectively consume the rotational flow noise when the fan operates, and the noise reduction component that wind-guiding circle body cambered surface structure was last to be set up can reach the effect of making an uproar, and both combine the back, and the ability of making an uproar is strong, and noise reduction effect is good, has effectively reduced the noise of fan operation, has promoted user experience.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (15)

1. The utility model provides a wind-guiding circle of making an uproar falls, is used for the fan, its characterized in that includes wind-guiding circle body (1), amortization subassembly (2) and falls subassembly (3) of making an uproar, amortization subassembly (2) set up in the rear end portion of the wind-guiding face of wind-guiding circle body (1), and set up along circumference for consume fan moving whirl noise, it is a plurality of to fall subassembly (3) of making an uproar, and evenly encircle set up in the cambered surface structure of wind-guiding circle body (1).

2. The wind deflector of claim 1, characterized in that the silencing component (2) is a semi-ring structure, and the silencing component (2) is uniformly provided with first silencing holes (21).

3. The noise-reducing wind guide ring according to claim 2, wherein the first noise-reducing hole (21) is a circular through hole with a diameter of 0.7-0.9 mm, and the noise-reducing component (2) has a through hole rate of 3-4%.

4. The wind guide ring of claim 1, wherein the noise reduction assembly (3) is disposed on an inner wall of the wind guide ring body (1).

5. The noise reducing wind deflector according to claim 4, characterized in that the noise reducing assembly (3) comprises a raised structure (31) having a cavity therein.

6. The wind deflector of claim 5, characterized in that the noise reduction assembly (3) further comprises second muffling holes (32) uniformly arranged on the protruding structure (31).

7. The noise-reducing wind guide ring according to claim 6, wherein the second sound-reducing hole (32) is a circular through hole with a diameter of 0.7-0.9 mm, and the protruding structure (31) has a through hole rate of 3-4%.

8. The noise-reducing air guide ring according to any one of claims 5 to 7, wherein the protruding structure (31) comprises a first sound-absorbing plate (311), a second sound-absorbing plate (312) and a third sound-absorbing plate (313), the first sound-absorbing plate (311), the second sound-absorbing plate (312) and the third sound-absorbing plate (313) are connected in a non-coplanar manner in pairs, and the three are connected with the inner wall of the air guide ring body (1) together to form a cavity.

9. The wind deflector according to claim 4, characterized in that the noise reduction assembly (3) comprises a noise reduction block (33) having a sheet structure, and the noise reduction block (33) is provided with a third noise reduction hole (331).

10. The noise-reducing wind guide ring according to claim 9, wherein the noise-reducing blocks (33) are obliquely arranged on the wind guide ring body (1), and an included angle between the noise-reducing blocks (33) and the circumferential direction of the wind guide ring body (1) is 20-50 °.

11. The wind deflector of claim 9, wherein the noise reduction block (33) is vertically disposed on the wind deflector body (1).

12. The noise-reducing wind guide ring according to any one of claims 9 to 11, wherein the third sound-absorbing hole (331) is a circular through hole with a diameter of 0.7 to 0.9mm, and the noise-reducing block (33) has a through hole rate of 3 to 4%.

13. The noise-reducing wind guide ring according to claim 4, wherein the number of the noise-reducing assemblies (3) is 16-20.

14. The noise-reducing wind guide ring according to claim 1, wherein a plurality of through mounting holes (11) are uniformly formed on the front side end edge side of the wind guide ring body (1).

15. The fan is characterized by comprising a volute component (4), a motor (5), a wind wheel (6) and the noise-reducing wind guide ring according to any one of claims 1 to 13, wherein the volute component (4) comprises a volute face cover (41), a volute bottom cover (42), a volute enclosing plate (43) and a volute air outlet flange (44), the motor (5) is arranged on the volute bottom cover (42), the wind wheel (6) is arranged on a rotating shaft of the motor (5), and the wind guide ring body (1) is arranged at an air inlet position of the volute face cover (41).

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