CN214333034U - Air duct noise reduction structure of air conditioning room machine - Google Patents
Air duct noise reduction structure of air conditioning room machine Download PDFInfo
- Publication number
- CN214333034U CN214333034U CN202022284254.4U CN202022284254U CN214333034U CN 214333034 U CN214333034 U CN 214333034U CN 202022284254 U CN202022284254 U CN 202022284254U CN 214333034 U CN214333034 U CN 214333034U
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- wind
- guide ring
- air
- front panel
- absorption layer
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to an air conditioner manufacturing technology field, in particular to structure of making an uproar falls in air conditioning room machine wind channel, include the front panel, set up in air outlet on the front panel and correspond set up in the wind-guiding circle of air outlet department, the leeward side of wind-guiding circle is fixed in the front panel the air outlet department, the windward side of wind-guiding circle is located the back of front panel, the windward side periphery of wind-guiding circle outwards is formed with the turn-ups, and turns over of wind-guiding circle is convex, the inner wall of wind-guiding circle is provided with a plurality of bellied wind-guiding strips, a plurality of wind-guiding strip circumference evenly distributed in the inner wall of wind-guiding circle, the diameter of the windward side of wind-guiding circle is greater than the diameter of the leeward side of wind-guiding circle. The utility model aims at providing a structure of making an uproar falls in air conditioning room machine wind channel aims at solving the problem that the air condensing units during operation noise big influence sense of hearing travelling comfort that exists among the prior art.
Description
Technical Field
The utility model relates to an air conditioner manufacturing technology field, in particular to structure of making an uproar falls in air conditioning room machine wind channel.
Background
In the air-conditioning system, the part mainly generating noise is a compressor and a fan cooling system, wherein the fan cooling system mainly generates noise in a mode that a blade can generate friction or impact with air when rotating, the frequency of the noise is formed by compounding a plurality of frequencies, the frequencies are all related to the rotating speed of the fan, the rotating speed is higher, the frequency of the air is higher, the noise is sharper, the width or the thickness of the blade is increased, and the phenomenon is more obvious; during the operation of the fan, vortex flow is generated on the back of the moving wing, and the vortex flow not only reduces the efficiency of the fan, but also generates noise; when air flows, if the air encounters a sharp obstacle, turbulent flow is easy to occur. Although the turbulent flow is different from the vortex flow, the turbulent flow also generates noise or high-frequency squeal, and the efficiency loss is also caused for the fan; besides the fixed noise of the fan, other noise sources exist. For example: the bearing is not accurate enough, and improper assembly or maintenance can cause abnormal noise. The motor part also generates noise, some are caused by poor design or poor quality, but some are caused by the internal and external cooling fans of the motor.
At present, most of wind guide rings of air conditioner outdoor units adopt a structure form that a shell of an air conditioner indoor unit is flanged and then expanded into a horn mouth, so that a circle of flanged edge is formed on the windward side of the wind guide ring, when axial flow fan blades work, partial airflow is separated from the wind guide ring due to the flanged edge and blows to a front panel to form backflow, and great vortex flow is generated at the root position of the wind guide ring, so that great noise is generated, and especially the vortex flow noise formed at the position can be directly transmitted to the back and the left side of the outdoor unit through a heat exchanger.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a structure of making an uproar falls in air conditioning room machine wind channel aims at solving the problem that the air condensing units during operation noise big influence sense of hearing travelling comfort that exists among the prior art.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the air duct noise reduction structure of the air conditioner room comprises a front panel, an air outlet formed in the front panel and an air guide ring correspondingly arranged at the air outlet, wherein the leeward side of the air guide ring is fixed at the air outlet of the front panel, the windward side of the air guide ring is positioned on the back of the front panel, a flange is outwards formed at the periphery of the windward side of the air guide ring, the flange of the air guide ring is circular, a plurality of raised air guide strips are arranged on the inner wall of the air guide ring, the plurality of air guide strips are circumferentially and uniformly distributed on the inner wall of the air guide ring, and the diameter of the windward side of the air guide ring is larger than that of the leeward side of the air guide ring.
Furthermore, one end of each air guide strip is flush with the windward side of the air guide ring, and the other end of each air guide strip is flush with the leeward side of the air guide ring.
Furthermore, a first sound absorption layer is fixedly arranged on the outer wall of the air guide ring and is adhered to the outer wall of the air guide ring.
Furthermore, the first sound absorption layer is made of phenolic plastics, and honeycomb holes are formed in the surface and the inner portion of the first sound absorption layer.
By adopting the technical scheme, the air flow in the air guide ring can be guided, and the noise generated by the vortex can be reduced.
Furthermore, a second sound absorption layer is arranged on the back face of the front panel, the second sound absorption layer is made of a composite sound absorption layer formed by combining sponge or wadded jacket and rubber or thin film or paper, and honeycomb holes are formed in the surface and the inner portion of the second sound absorption layer.
Further, the second sound absorbing layer is adhered to the back surface of the front panel.
By adopting the technical scheme, the airflow impacting the back surface of the front panel can be absorbed, the turbulence of the airflow returning at high speed to the wet airflow is avoided, and the noise of vortex is reduced.
To sum up, the utility model discloses following beneficial effect has:
1. through the arrangement of the horn-shaped air guide ring and the plurality of air guide strips arranged in the air guide ring, the effects of dividing air flow in the air guide ring and avoiding the horn-shaped air guide ring from generating eddy flow can be achieved;
2. the second honeycomb sound absorption layer is arranged on the back surface of the front panel, so that the effect of absorbing the airflow impacting on the back surface of the front panel and avoiding the airflow from generating a vortex is achieved;
3. the arrangement of the first honeycomb sound absorption layer arranged on the outer wall of the air guide ring can achieve the effect of absorbing noise generated by vibration of the air guide ring caused by airflow.
Drawings
Fig. 1 is a schematic perspective view of the present embodiment, which is used to show the connection relationship among the front panel, the first sound absorbing layer, the wind guiding ring, the wind guiding strip and the second sound absorbing layer
Fig. 2 is a schematic perspective view of the connection relationship between the wind guiding ring and the first sound absorbing layer in this embodiment.
In the figure, 1, a front panel; 2. a wind guide ring; 3. wind guide strips; 4. a first sound absorbing layer; 5. and a second sound absorbing layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In which like parts are designated by like reference numerals. It should be noted that the terms "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, the terms "bottom" and "top", "inner" and "outer" refer to directions toward and away from a particular component geometry, respectively, and the terms "first" and "second" 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless the direction of the center is specifically defined otherwise.
Example (b):
as shown in fig. 1 and 2, an air duct noise reduction structure of an air conditioner room comprises a front panel 1, an air outlet arranged on the front panel 1 and an air guide ring 2 correspondingly arranged at the air outlet, wherein the leeward side of the air guide ring 2 is fixed at the air outlet of the front panel 1, the windward side of the air guide ring 2 is positioned at the back of the front panel 1, a flange is outwards formed at the periphery of the windward side of the air guide ring 2, the flange of the air guide ring 2 is arc-shaped, a plurality of raised air guide strips 3 are arranged on the inner wall of the air guide ring 2, the plurality of air guide strips 3 are uniformly distributed on the inner wall of the air guide ring 2 in the circumferential direction, and the diameter of the windward side of the air guide ring 2 is larger than the diameter of the leeward side of the air guide ring 2.
Furthermore, one end of each air guide strip 3 is flush with the windward side of the air guide ring 2, and the other end of each air guide strip 3 is flush with the leeward side of the air guide ring 2.
Furthermore, a first sound absorption layer 4 is fixedly arranged on the outer wall of the air guide ring 2, and the first sound absorption layer 4 is adhered to the outer wall of the air guide ring 2.
Further, the first sound absorbing layer 4 is made of phenolic plastic, and the surface and the inside of the first sound absorbing layer 4 are provided with honeycomb holes.
Further, a second sound absorption layer 5 is arranged on the back of the front panel 1, the second sound absorption layer 5 is a composite sound absorption layer formed by combining sponge or wadded jacket and rubber or thin film or paper, and honeycomb holes are formed in the surface and the inner part of the second sound absorption layer 5.
Further, the second sound absorbing layer 5 is attached to the back surface of the front panel 1.
The specific implementation process comprises the following steps: the second sound absorption layer 5 can absorb a part of airflow which is not discharged from the air guide ring 2 and is pushed by the vortex fan, and a plurality of air guide strips in the air guide ring 2 can divide and guide the airflow in the air guide ring 2, so that the generation of vortex is avoided.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a structure of making an uproar falls in air conditioning room machine wind channel, its includes front panel (1), set up in air outlet on front panel (1) and correspond set up in wind-guiding circle (2) of air outlet department, its characterized in that: the back wind side of the wind guide ring (2) is fixed at the wind outlet of the front panel (1), the windward side of the wind guide ring (2) is located on the back of the front panel (1), a flange is formed outwards on the periphery of the windward side of the wind guide ring (2), the wind guide ring (2) is in a circular arc shape in the turnover direction, a plurality of raised wind guide strips (3) are arranged on the inner wall of the wind guide ring (2), the plurality of wind guide strips (3) are uniformly distributed on the inner wall of the wind guide ring (2) in the circumferential direction, and the diameter of the windward side of the wind guide ring (2) is larger than that of the back wind side of the wind guide ring (2).
2. The noise reduction structure for air conditioning unit ducts of claim 1, wherein: one end of each air guide strip (3) is flush with the windward side of the air guide ring (2), and the other end of each air guide strip (3) is flush with the leeward side of the air guide ring (2).
3. The noise reduction structure for air conditioning unit ducts of claim 1, wherein: the outer wall of the air guide ring (2) is fixedly provided with a first sound absorption layer (4), and the first sound absorption layer (4) is adhered to the outer wall of the air guide ring (2).
4. The noise reduction structure for air conditioning unit ducts of claim 3, wherein: the first sound absorption layer (4) is made of phenolic plastics, and honeycomb holes are formed in the surface and the inner portion of the first sound absorption layer (4).
5. The noise reduction structure for air conditioning unit ducts of claim 1, wherein: the back of the front panel (1) is provided with a second sound absorption layer (5), the second sound absorption layer (5) is a composite sound absorption layer formed by combining sponge or wadded jacket and rubber or thin film or paper, and honeycomb holes are formed in the surface and the inner part of the second sound absorption layer (5).
6. The structure of claim 5, wherein the noise reduction structure comprises a base; the second sound absorption layer (5) is adhered to the back surface of the front panel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022284254.4U CN214333034U (en) | 2020-10-14 | 2020-10-14 | Air duct noise reduction structure of air conditioning room machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022284254.4U CN214333034U (en) | 2020-10-14 | 2020-10-14 | Air duct noise reduction structure of air conditioning room machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214333034U true CN214333034U (en) | 2021-10-01 |
Family
ID=77875845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022284254.4U Expired - Fee Related CN214333034U (en) | 2020-10-14 | 2020-10-14 | Air duct noise reduction structure of air conditioning room machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214333034U (en) |
-
2020
- 2020-10-14 CN CN202022284254.4U patent/CN214333034U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211001 |