CN214425311U

CN214425311U - Effectively reduce wind channel structure of making an uproar

Info

Publication number: CN214425311U
Application number: CN202120066268.0U
Authority: CN
Inventors: 杨洋洋
Original assignee: Harbin Yuecai Environmental Protection Technology Co ltd
Current assignee: Harbin Yuecai Environmental Protection Technology Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-10-19
Anticipated expiration: 2031-01-12

Abstract

The utility model discloses an air duct structure for effectively reducing wind noise, which comprises a transmission air duct, wherein both ends of the transmission air duct are respectively communicated with an air inlet channel and an air outlet channel, the air inlet pipe and the air outlet pipe are respectively arranged at the side parts of the air inlet channel and the air outlet channel, the end surfaces of the air inlet pipe and the air outlet pipe are respectively and uniformly provided with a plurality of first conical holes and second conical holes, the large opening of the first conical hole is arranged inwards, the large opening of the second conical hole is arranged outwards, and along the radial direction of the section of the air inlet pipe and the radial direction of the section of the air outlet pipe, the difference value between the large-opening end and the small-opening end of the first conical hole is gradually increased from inside to outside, the difference between the macrostoma end of second toper hole and the osculum end is from inside to outside also crescent, the utility model discloses can eliminate two aspects of reducing wind noise effectively from the mode that the noise produced and produce the back to the noise.

Description

Effectively reduce wind channel structure of making an uproar

Technical Field

The utility model relates to a wind channel design technical field specifically is an effectively reduce wind structure of making an uproar.

Background

In the drying machine, washing machine and other equipment needing air flow input for working, the air duct has great influence on the air quantity and noise and the air inlet and outlet. The existing air duct lacks good noise reduction on air inlet and air outlet, air inlet resistance and air outlet resistance are large, and good guiding on air flow is also lacked in the main air duct, so that an air duct structure for effectively reducing air noise is urgently needed to be developed to overcome the defect of current practical application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an effectively reduce wind channel structure of making an uproar to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an effectively reduce wind channel structure of making an uproar, includes the transmission wind channel, the both ends in transmission wind channel communicate respectively and are provided with inlet air channel and air-out passageway, inlet air channel and air-out passageway are different from transmission wind channel one end and communicate respectively and are provided with the air-supply line and go out the tuber pipe, the air-supply line is equallyd divide with the play tuber pipe and is set up the lateral part at inlet air channel and air-out passageway respectively, a plurality of first bell mouth and second cone hole have evenly been seted up respectively to the terminal surface of air-supply line and play tuber pipe, the macrostoma of first bell mouth sets up inwards, the macrostoma of second cone hole sets up outwards, and along the section radius direction of air-supply line and the section radius direction of play tuber pipe, the difference between the macrostoma of first cone hole and the osculum end is crescent from inside to outside, the difference between the macrostoma of second cone hole and the osculum end is crescent from inside to outside also, the transmission wind channel inboard is provided with the equal tuber pipe that a plurality of is circumference array distribution, every the inner wall circumference of equal tuber pipe is fixed with a plurality of gib block, the length of gib block is the same with the length of equal tuber pipe, and it has syllable-dividing medium all to fill in the clearance between two adjacent equal tuber pipes, the transmission wind channel is equallyd divide with the junction of inlet air channel and air-out passageway and is do not fixed with a circular connector, two the spread groove has all been seted up on the circular connector, spread groove and equal tuber pipe adaptation, every the both ends of equal tuber pipe are equallyd divide and do not inlay and establish in the spread groove.

As a further aspect of the present invention: the transmission air channel comprises an air channel main body, a first rubber layer, a first porous sound-absorbing board and a second porous sound-absorbing board, wherein the first rubber layer is fixed on the outer side of the air channel main body, the first porous sound-absorbing board is arranged on the outer side of the first rubber layer, the second porous sound-absorbing board is arranged on the outer side of the second porous sound-absorbing board, a cavity is formed between the first porous sound-absorbing board and the second porous sound-absorbing board, a sound-insulating cotton layer is arranged in the cavity, and a second rubber layer is fixed on the outer side of the second porous sound-absorbing board.

As a further aspect of the present invention: the air inlet channel and the air outlet channel are provided with arc-shaped parts along the change position of the wind direction.

As a further aspect of the present invention: at least six guide strips are arranged in each air equalizing pipe, and the width of each guide strip is 1/3-1/2 of the inner radius of each air equalizing pipe.

As a further aspect of the present invention: the air inlet channel and the air outlet channel are fixedly connected with the two ends of the transmission air channel through threads respectively.

Compared with the prior art, the beneficial effects of the utility model are that: through the design of the first conical holes and the second conical holes on the air inlet pipe and the air outlet pipe, the direction of air flow entering and exiting is more divergent, so that air supply is softer, and noise is reduced; through the design of the air equalizing pipes in the main air duct, the air flow in the main air duct is uniformly dispersed into a plurality of strands, the flow of the air flow with a single section is reduced, the effect of the interaction effect among the air flow molecules is reduced, the guide strips in the air equalizing pipes are arranged to have an obvious guide effect on the air flow, so that the air flow is stably transported, and the wind noise is reduced again; the noise is generated again through the arrangement of the transmission air channel and is transmitted to the external process for noise reduction, the mode generated by the noise and the generated noise are effectively eliminated, the wind noise is effectively reduced, and the noise reduction performance is greatly improved.

Drawings

Fig. 1 is a schematic view of an internal structure of an air duct structure for effectively reducing wind noise.

Fig. 2 is a schematic view of an internal structure of an air equalizing pipe in an air duct structure for effectively reducing wind noise.

FIG. 3 is a top view of a circular joint in an air duct structure effective in reducing wind noise.

Fig. 4 is a schematic structural view of a first tapered hole on an air inlet pipe in an air duct structure for effectively reducing wind noise.

Fig. 5 is a schematic structural view of a transmission air duct in an air duct structure for effectively reducing wind noise.

FIG. 6 is an axial view of an air equalizing pipe in an air duct structure for effectively reducing wind noise.

In the figure: 1. a transmission air duct; 101. an air duct main body; 102. a first rubber layer; 103. a second rubber layer; 104. a first porous sound-absorbing panel; 105. a second porous sound-absorbing panel; 106. a soundproof cotton layer; 2. an air inlet channel; 3. an air inlet pipe; 31. a first tapered bore; 4. an air outlet pipe; 41. a second tapered bore; 5. a circular connector; 51. connecting grooves; 6. air equalizing pipes; 7. a guide strip; 8. a sound-insulating medium; 9. an air outlet channel.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Referring to fig. 1 to 6, in an embodiment of the present invention, an air duct structure for effectively reducing wind noise includes a transmission air duct 1, two ends of the transmission air duct 1 are respectively communicated with an air inlet channel 2 and an air outlet channel 9, one end of the air inlet channel 2 and one end of the air outlet channel 9, which are different from the end of the transmission air duct 1, are respectively communicated with an air inlet pipe 3 and an air outlet pipe 4, the air inlet pipe 3 and the air outlet pipe 4 are respectively disposed at the lateral portions of the air inlet channel 2 and the air outlet channel 9, the end surfaces of the air inlet pipe 3 and the air outlet pipe 4 are respectively and uniformly provided with a plurality of first conical holes 31 and second conical holes 41, the major opening of the first conical hole 31 is disposed inward, the major opening of the second conical hole 41 is disposed outward, and the difference between the major opening end and the minor opening end of the first conical hole 31 gradually increases from inside to outside along the radial direction of the cross section of the air inlet pipe 3 and the radial direction of the cross section of the air outlet pipe 4, difference between the macrostoma end of second toper hole 41 and the osculum end is from inside to outside also crescent, 1 inboard in transmission wind channel is provided with a plurality of and is circumference array distribution's tuber pipe 6, every the inner wall circumference of tuber pipe 6 is fixed with a plurality of gib block 7, the length of gib block 7 is the same with the length of tuber pipe 6, and it has syllable-dividing medium 8 all to fill in the clearance between two adjacent tuber pipes 6, transmission wind channel 1 is equallyd divide with inlet air channel 2 and the junction of air-out passageway 9 and is do not fixed with a circular connector 05, two spread groove 51 has all been seted up on the circular connector 05, spread groove 51 and tuber pipe 6 adaptation, every equal both ends of tuber pipe 6 are equallyd divide and do not inlay and establish in spread groove 51.

In this embodiment, when air enters the air inlet channel 2 from the air inlet pipe 3, the large opening of the first tapered hole 31 faces inward, and the difference between the outer diameter and the inner diameter of the first tapered hole 31 increases gradually from inside to outside in the radial direction through the first tapered hole 31, and the difference between the large opening end and the small opening end of the second tapered hole 41 also increases gradually from inside to outside, when air enters through the first tapered hole 31, airflow changes the flow direction through the first tapered hole 31, so that the direction in which the airflow enters is more divergent, the air supply is softer, noise is reduced, correspondingly, when air is sent out through the second tapered hole 41, the direction in which the airflow is sent out is more divergent, noise is also reduced, and the problem of higher noise when air enters and exits is effectively solved; the air flow in the main air channel is effectively and uniformly dispersed into a plurality of strands through the air equalizing pipes 6 distributed in the circumferential array manner in the transmission air channel 1, the flow of the air flow with a single section is reduced, the effect of the mutual influence among the air flow molecules is reduced, the air conveying is softer in the single air equalizing pipe 6, an obvious guiding effect is realized on the air flow through the arrangement of the guide strips 7 in the air equalizing pipe 6, the air flow is stably transported, the air noise is reduced again, and the air flow is successfully shunted through the arrangement of the two circular connectors 05; through the sound-proof medium 8 of packing between the tuber pipe 6, the sound-proof medium can be sponge, foamed plastic etc. and initiatively eliminate the noise that does not produce by the single tuber pipe 6 of equalling wind of being eliminated, the noise reduction produces the production of the influence of mutual stack, expansion effect after, plays the effect of initiatively making an uproar, and two aspects of eliminating the noise are reduced wind effectively to the mode that the above follow noise produced and produce the back.

Referring to fig. 1 to 6, as another preferred embodiment of the present invention, the transmission air duct 1 includes an air duct main body 101, a first rubber layer 102, a first porous sound-absorbing plate 104 and a second porous sound-absorbing plate 105, the first rubber layer 102 is fixed on the outer side of the air duct main body 101, the first porous sound-absorbing plate 104 is disposed on the outer side of the first rubber layer 102, the second porous sound-absorbing plate 105 is disposed on the outer side of the second porous sound-absorbing plate 105, a cavity is disposed between the first and second porous sound-absorbing plates 105, a sound-insulating cotton layer 106 is disposed in the cavity, and a second rubber layer 103 is fixed on the outer side of the second porous sound-absorbing plate 105.

In this embodiment, the noise is generated again by the arrangement of the transmission air duct 1 and is transmitted to the outside for noise reduction, the arrangement of the first rubber layer 102 and the second rubber layer 103 on both sides can play a role in sealing, and the noise reduction performance is greatly improved by the first porous sound-absorbing board 104 and the second porous sound-absorbing board 105 which are arranged at intervals and the soundproof cotton layer 106 arranged between the first porous sound-absorbing board and the second porous sound-absorbing board.

Referring to fig. 1, as another preferred embodiment of the present invention, the air inlet channel 2 and the air outlet channel 9 are provided with arc portions at the positions where the wind direction changes.

In this embodiment, the design of the formula of buckling through inlet air channel 2 and air-out channel 9 can just be provided with arc portion and can both realize the steady flow when making the air current business turn over, is favorable to the noise reduction.

Referring to fig. 6, as another preferred embodiment of the present invention, at least six guide bars 7 are provided in each air equalizing pipe 6, the width of each guide bar 7 is between 1/3-1/2 of the inner radius of the air equalizing pipe 6, and the reasonable width and number are provided to facilitate noise reduction without increasing the manufacturing cost.

Referring to fig. 1 to 6, as another preferred embodiment of the present invention, the air inlet channel 2 and the air outlet channel 9 are respectively fixed to two ends of the transmission air duct 1 by a screw connection, which is beneficial to disassembly.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The utility model provides an effectively reduce wind channel structure of making an uproar, includes transmission wind channel (1), its characterized in that, the both ends in transmission wind channel (1) communicate respectively and are provided with inlet air channel (2) and air-out passageway (9), inlet air channel (2) and air-out passageway (9) are different from transmission wind channel (1) one end and communicate respectively and are provided with air-supply line (3) and exhaust pipe (4), air-supply line (3) and exhaust pipe (4) are equallyd divide and are do not set up the lateral part at inlet air channel (2) and air-out passageway (9), a plurality of first bell mouth (31) and second cone hole (41) are evenly seted up respectively to the terminal surface of air-supply line (3) and exhaust pipe (4), the macrostoma of first bell mouth (31) sets up inwards, the macrostoma of second cone hole (41) sets up outwards, and along the section radius direction of air-supply line (3) and the section radius direction of exhaust pipe (4), the difference between the large-opening end and the small-opening end of the first conical hole (31) is gradually increased from inside to outside, the difference between the large-opening end and the small-opening end of the second conical hole (41) is also gradually increased from inside to outside, a plurality of air equalizing pipes (6) distributed in a circumferential array are arranged on the inner side of the transmission air duct (1), each air equalizing pipe (6) is fixedly provided with a plurality of guide strips (7) in the circumferential direction of the inner wall, the length of each guide strip (7) is the same as that of each air equalizing pipe (6), a sound insulation medium (8) is filled in a gap between every two adjacent air equalizing pipes (6), a circular connector (05) is uniformly arranged at the joint of the transmission air duct (1) and the air inlet channel (2) and the air outlet channel (9), a connecting groove (51) is formed in each circular connector (05), and the connecting groove (51) is matched with each air equalizing pipe (6), and two ends of each air equalizing pipe (6) are respectively embedded in the connecting grooves (51).

2. An air channel structure capable of effectively reducing wind noise according to claim 1, wherein the transmission air channel (1) comprises an air channel main body (101), a first rubber layer (102), a first porous sound-absorbing plate (104) and a second porous sound-absorbing plate (105), the first rubber layer (102) is fixed on the outer side of the air channel main body (101), the first porous sound-absorbing plate (104) is arranged on the outer side of the first rubber layer (102), the second porous sound-absorbing plate (105) is arranged on the outer side of the second porous sound-absorbing plate (105) and a cavity is arranged between the first porous sound-absorbing plate and the second porous sound-absorbing plate, a sound-insulating cotton layer (106) is arranged in the cavity, and a second rubber layer (103) is fixed on the outer side of the second porous sound-absorbing plate (105).

3. The air channel structure for effectively reducing wind noise according to claim 2, wherein the air inlet channel (2) and the air outlet channel (9) are provided with arc-shaped portions at the positions where the wind direction changes.

4. An air channel structure for effectively reducing wind noise according to claim 3, characterized in that at least six guide bars (7) are arranged in each air equalizing pipe (6), and the width of each guide bar (7) is 1/3-1/2 of the inner radius of each air equalizing pipe (6).

5. The air channel structure for effectively reducing wind noise according to claim 1, wherein the air inlet channel (2) and the air outlet channel (9) are respectively fixed with two ends of the transmission air channel (1) through threaded connection.