CN213020032U - Noise eliminator for air conditioner outdoor unit - Google Patents
Noise eliminator for air conditioner outdoor unit Download PDFInfo
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- CN213020032U CN213020032U CN202022049632.0U CN202022049632U CN213020032U CN 213020032 U CN213020032 U CN 213020032U CN 202022049632 U CN202022049632 U CN 202022049632U CN 213020032 U CN213020032 U CN 213020032U
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- air
- exhaust fan
- silencer
- guide pipe
- air conditioner
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Abstract
The utility model relates to a technical field of making an uproar falls in the noise elimination, specifically disclose outer machine silencing device of air conditioner, including bracket and the silencer of fixed connection on the bracket, the silencer has the noise elimination function, is equipped with the air exit on the silencer, is connected with the guide duct between silencer and the exhaust fan, and a guide duct pot head is on the exhaust fan, and the silencer is connected to the guide duct other end, and the guide duct can be followed completely and removed on the exhaust fan, and the guide duct is used for leading-in the silencer with the air current on the exhaust fan. This scheme is through setting up the guide duct that can directly shift out from the exhaust fan, has solved the inconvenient exhaust fan of noise eliminator who installs on the exhaust fan that produces the noise source among the prior art and has maintained or the problem of changing.
Description
Technical Field
The utility model relates to a technical field of making an uproar falls in the noise elimination, specifically is outer machine noise eliminator of air conditioner.
Background
The air conditioner outdoor unit is mostly installed on a roof, an apron building, a balcony and the like, noise of the air conditioner outdoor unit is a mixture of aerodynamic noise and mechanical noise and is mainly transmitted through structural parts and air media, and the general noise value is within the range of 45-75 dB. The small air conditioner outdoor unit used in a common household generates relatively low noise, so that the normal life and work of people are not influenced basically, and the central air conditioner outdoor unit used in a public facility generates relatively high noise and has the characteristics of long propagation distance, difficulty in attenuation and the like, so that the air conditioner noise easily penetrates through a window and a floor structure to enter a room, and the human health is influenced. For mechanical noise, the problem can be solved well by installing the external unit equipment on the vibration reduction platform, but for eliminating aerodynamic noise generated during the operation of an exhaust fan on the air conditioner external unit, the equipment and the method which can be selected at present are less.
Although there are some devices for silencing and reducing noise of a central air conditioner external unit in the prior art, most of these devices directly cover or surround the whole air conditioner external unit, wrap an air conditioner external unit exhaust fan generating aerodynamic noise to insulate and reduce noise, and then exhaust air generated by the exhaust fan.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is in providing the outer machine silencing device of air conditioner to install the inconvenient exhaust fan of silencing device on the exhaust fan that produces the noise source among the solution prior art and maintain or the problem of changing.
In order to achieve the above object, the basic scheme of the present invention is as follows:
the silencer has a silencing function, an air outlet is formed in the silencer, an air guide pipe is connected between the silencer and the exhaust fan, one end of the air guide pipe is sleeved on the exhaust fan, the other end of the air guide pipe is connected with the silencer, the air guide pipe can be completely removed from the exhaust fan, and the air guide pipe is used for guiding air flow on the exhaust fan into the silencer.
Compare the beneficial effect in prior art:
when this scheme of adoption, exhaust fan and silencer are located the both sides of guide duct, when realizing the noise elimination to the wind of exhaust fan exhaust, carry out the noise elimination processing in unified along the guide duct water conservancy diversion to the silencer with the wind on the exhaust fan through the guide duct, after the noise elimination processing is accomplished, discharge from the air exit on the silencer again, both realized the noise elimination function, do not hinder the discharge of the wind of exhaust fan again.
When the exhaust fan needs to be replaced or maintained, the air guide pipe is directly removed from the exhaust fan, the exhaust fan is integrally exposed, and compared with the prior art, the exhaust fan is not required to be maintained or replaced after the whole noise eliminator is dismounted, so that the operation is simple and the cost is low.
Furthermore, an air collection chamber is arranged in the silencer, one end of the air guide pipe is sleeved on the exhaust fan, the other end of the air guide pipe extends into the air collection chamber, a plurality of sound absorbers with sound absorbing materials are arranged in the air collection chamber, and the height difference between the air guide pipe and the sound absorbers is larger than or equal to the height of the air guide pipe.
Has the advantages that: the existence of the sound absorber increases the friction between the sound absorbing material in the sound absorber and the air flow, and is beneficial to increasing the attenuation of the noise generated when the air flow flows; the air collection chamber can be conveniently moved and placed into the air collection chamber when the exhaust fan is replaced or maintained, the maintenance or replacement of the exhaust fan is facilitated, the air guide pipe is moved out of the air collection chamber after the maintenance or replacement is completed, and one end of the air guide pipe is sleeved on the exhaust fan.
Furthermore, a plurality of sound absorbers are parallel to each other, a circulation channel is formed between every two adjacent sound absorbers, and one end, close to the air guide pipe, of each sound absorber is provided with a V-shaped flow guide portion.
Has the advantages that: the sound absorbers separate the air exhausted by the exhaust fan, so that the strength of aerodynamic noise increased by staggered collection and collision of the air in the air collection chamber is reduced. The V-shaped flow guide part is beneficial to the air to flow to a circulation channel between different sound absorbers, and can realize the flow division of the air under the condition of small resistance to the air, thereby avoiding the problem that the running efficiency of the exhaust fan is influenced by the overlarge resistance after the air exhausted by the exhaust fan enters the air collection chamber.
Further, the sound absorber is parallel to the axial direction of the air guide pipe.
Has the advantages that: the wind exhausted by the exhaust fan is favorably and quickly divided by the sound absorber, and the resistance of the sound absorber to the wind is reduced.
Furthermore, a plurality of sound absorbers are distributed in the air collecting chamber at equal intervals.
Has the advantages that: the wind-collecting chamber is beneficial to realizing uniform flow distribution after the wind enters the wind-collecting chamber, so that the contact area between the wind and the sound-absorbing material on the sound absorber is increased, and the sound-absorbing effect is further increased.
Furthermore, the sound absorber comprises a shell and sound absorbing materials in the shell, and a plurality of through holes are formed in the shell.
Has the advantages that: the through holes on the shell facilitate the wind to enter the sound absorber and contact with the sound absorbing material.
Further, glass cloth is arranged between the shell and the sound absorption material.
Has the advantages that: because of the sound absorbent is fibrous material mostly, if wind directly blows on the sound absorbent, then the sound absorbent is after using for a long time, and the sound absorbent in the sound absorbent can be taken away and influence the noise cancelling effect of sound absorbent by the air current of wind, and the existence of glass cloth can prevent the sound absorbent and take away by the air current in this scheme, and then guarantees the noise cancelling effect of sound absorbent in long-time.
Further, be equipped with the rain-proof cap that is used for the air current direction on the silencer, and rain-proof cap can shelter from the air exit.
Has the advantages that: the air outlet can be arranged in any direction according to the sound environment through the air flow guiding rain-proof cap, and meanwhile, the air outlet is shielded, so that the condition that rainwater at the air outlet directly enters the silencer is avoided; in addition, this scheme has still played the guard action to the outer machine of air conditioner through the silencer that has rain-proof cap, avoids the direct condition that enters into on the exhaust fan of external rainwater or debris, is favorable to the life-span extension of exhaust fan.
Furthermore, be equipped with the guide plate on the rain-proof cap, the guide plate is relative with the air exit.
Has the advantages that: the guide plate plays a role in guiding wind in the silencer, and the situation that the wind in the silencer directly impacts the rain hat to increase noise and reduce wind speed is avoided.
Further, the guide plate is arc-shaped.
Has the advantages that: the arc-shaped guide plate is favorable for improving the flow guide effect of the guide plate.
Drawings
Fig. 1 is a three-dimensional perspective view of a first embodiment of the present invention;
FIG. 2 is a front cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a three-dimensional perspective view of a third embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: bracket 1, silencer 2, air outlet 21, box 22, rain-proof cap 23, guide plate 24, wind guide pipe 3, air collecting chamber 4, sound absorber 5, casing 51, glass cloth 52, sound absorbing material 53, guide part 6, air conditioner external unit 10, exhaust fan 20.
Example one
An embodiment substantially as described in figures 1 to 3 of the accompanying drawings:
a silencer 2 fixedly connected to a bracket 1 is arranged on the silencer 2, the silencer 2 has a silencing function, an air outlet 21 and an air inlet are formed in the silencer 2, an air guide pipe 3 is connected between the silencer 2 and an exhaust fan 20, one end of the air guide pipe 3 is sleeved on the exhaust fan 20, the other end of the air guide pipe 3 is connected to the air inlet of the silencer 2, and the air guide pipe 3 is used for guiding air flow on the exhaust fan 20 into the silencer 2.
In this embodiment, the exhaust fan 20 of the air conditioner external unit 10 is located at the top of the air conditioner external unit 10, the muffler 2 is located at the top of the exhaust fan 20, the bracket 1 is fixedly mounted on the ground where the air conditioner external unit 10 is placed through screws, the axial direction of the air guide pipe 3 is vertical, the air guide pipe 3 is cylindrical, the lower portion of the air guide pipe 3 can be sleeved on a shell of the exhaust fan 20, and the top of the air guide pipe 3 penetrates through the air inlet and extends into the muffler 2.
The silencer 2 comprises a box body 22 and a rain-proof cap 23 arranged on the top of the box body 22, the top of the box body 22 is open, an air inlet of the silencer 2 is formed in the bottom of the box body 22, an air collecting chamber 4 is formed in the box body 22, the top of an air guide pipe 3 is inserted into the air collecting chamber 4, a plurality of sound absorbers 5 with sound absorbing materials 53 are installed in the air collecting chamber 4, all the sound absorbers 5 are fixedly connected with the inner wall of the box body 22, all the sound absorbers 5 are vertically arranged, and all the sound absorbers 5 are installed in the air collecting chamber 4 at equal intervals; a circulation channel is formed between the adjacent sound absorbers 5, and one end of each sound absorber 5, which is close to the air guide pipe 3, is provided with a V-shaped flow guide part 6; the height difference between the air guide pipe 3 and the sound absorber 5 is more than or equal to the height of the air guide pipe 3.
The sound absorber 5 comprises a shell 51 and a glass cloth 52 and a sound-absorbing material 53 in the shell 51, wherein the shell 51 is provided with a plurality of through holes, the glass cloth 52 is positioned between the sound-absorbing material 53 and the shell 51, and the sound-absorbing material 53 can be made of centrifugal glass wool.
The rain hat 23 is welded on the box body 22, an air outlet 21 is formed between the rain hat 23 and the top of the box body 22, and the rain hat 23 can shield the air outlet 21; rain-proof cap 23 welding has guide plate 24, and guide plate 24 is the arc, and guide plate 24 is relative with air exit 21, and guide plate 24 and air exit 21's setting can play the guide effect to the air current.
The specific implementation process is as follows:
when the embodiment is adopted, when the noise elimination device is used for eliminating noise of the air conditioner outdoor unit 10, air exhausted from the exhaust fan 20 of the air conditioner outdoor unit 10 enters the air collecting chamber 4 along the guide effect of the air guide pipe 3, is divided by the sound absorbers 5, passes through the flow channels between the sound absorbers 5, continues to flow upwards, and is finally exhausted from the air outlet 21; in the whole process, wind passes between the sound absorbers 5 and rubs with the sound absorbing material 53 of the sound absorbers 5, so that dynamic noise of the wind in the flowing process can be attenuated, the sound absorbing effect is achieved, and meanwhile, due to the design of the V-shaped flow guide part 6 of the sound absorbers 5, the resistance of the sound absorbing device to the wind exhausted by the exhaust fan 20 is relatively small, and the exhaust efficiency of the exhaust fan 20 cannot be influenced due to the existence of the sound absorbing device.
When the exhaust fan 20 needs to be maintained or replaced, the air guide pipe 3 is directly moved upwards into the air collecting chamber 4 along the air inlet, the air guide pipe 3 is completely separated from the connection with the exhaust fan 20, so that the exhaust fan 20 is completely exposed, and a worker can directly maintain or replace the exhaust fan 20 on the basis of not removing other parts of the silencer, and the exhaust fan is simple to operate and low in cost.
In addition, in this embodiment, the rain hat 23 not only can noise the air exhausted by the exhaust fan 20, but also can protect the air conditioner outdoor unit 10 by the rain hat 23, so that external rainwater or impurities can be prevented from directly entering the exhaust fan 20, and the service life of the exhaust fan 20 can be prolonged.
It should be noted that in the present embodiment, the exhaust fan 20 of the air conditioner external unit 10 generates aerodynamic noise, so the air guiding pipe 3 is sleeved on the exhaust fan 20 of the air conditioner external unit 10, but the present invention is not limited to the exhaust fan 20 of the air conditioner external unit 10, and may be other devices generating aerodynamic noise.
Example two
The difference between the second embodiment and the first embodiment is that the air guiding pipe 3 in the second embodiment may adopt a corrugated pipe with a telescopic function, the bottom of the corrugated pipe is sleeved on the outer cover of the exhaust fan 20, and the top of the corrugated pipe extends into the air collecting chamber 4 of the muffler 2, or the top of the corrugated pipe is directly bonded to the air inlet of the muffler 2.
When the exhaust fan 20 of the air conditioner outdoor unit 10 needs to be replaced or maintained, if the top of the corrugated pipe is directly inserted into the air collecting chamber 4, the air guiding pipe 3 can be directly and upwardly inserted into the air collecting chamber 4 as in the first embodiment, so that the position of the exhaust fan 20 is completely exposed, and the replacement is convenient.
If the air duct 3 is glued to the muffler 2, the air duct 3 can be compressed directly, so that the air duct 3 is completely removed from the exhaust fan 20, in order to facilitate repair or replacement of the exhaust fan 20.
EXAMPLE III
With reference to fig. 4, the third embodiment is improved based on the first embodiment as follows: the number of the air conditioner external units 10 is multiple, in the third embodiment, the number of the air conditioner external units 10 is 4, and 4 air conditioner external units 10 are compactly installed together, so that the number of the air guide pipes 3 is also 4, 4 air inlets are formed in the muffler 2, the 4 air inlets correspond to the exhaust fans 20 of the 4 air conditioner external units 10 one by one, and the installation manner of the air guide pipes 3 on each air inlet and each exhaust fan 20 is the same as that of one air conditioner external unit 10 in the first embodiment.
When the embodiment is adopted, the airflows with aerodynamic noise discharged from the exhaust fans 20 on the 4 air conditioner external units 10 enter the silencer 2 through the corresponding air guide pipes 3 to be silenced, and then are discharged from the air outlet 21 at the upper part of the silencer 2; when the exhaust fan 20 is replaced or maintained, the same manner as the first embodiment is adopted, and the air guide pipe 3 is directly moved upwards into the air collection chamber 4 of the muffler 2, and then the exposed exhaust fan 20 is maintained or replaced.
The present embodiment not only achieves noise elimination for a plurality of compactly installed air conditioner external units 10, but also can satisfy the maintenance or replacement of the exhaust fan 20 on a plurality of air conditioner external units 10, and is simple in operation and low in cost during maintenance or replacement.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Outer machine silencing device of air conditioner, including bracket and the silencer of fixed connection on the bracket, the silencer has the noise elimination function, is equipped with air exit, its characterized in that on the silencer: an air guide pipe is connected between the silencer and the exhaust fan, one end of the air guide pipe is sleeved on the exhaust fan, the other end of the air guide pipe is connected with the silencer, the air guide pipe can be completely removed from the exhaust fan, and the air guide pipe is used for guiding airflow on the exhaust fan into the silencer.
2. The muffling device for an external air conditioner according to claim 1, wherein: an air collection chamber is arranged in the silencer, one end of an air guide pipe is sleeved on the exhaust fan, the other end of the air guide pipe extends into the air collection chamber, a plurality of sound absorbers with sound absorbing materials are arranged in the air collection chamber, and the height difference between the air guide pipe and the sound absorbers is larger than or equal to the height of the air guide pipe.
3. The noise abatement apparatus for an outdoor unit of an air conditioner of claim 2, wherein: the sound absorbers are parallel to each other, a circulation channel is formed between every two adjacent sound absorbers, and one end, close to the air guide pipe, of each sound absorber is provided with a V-shaped flow guide portion.
4. The muffling device for an outdoor unit of an air conditioner of claim 3, wherein: the sound absorber is parallel to the axial direction of the air guide pipe.
5. The muffling device for an outdoor unit of an air conditioner of claim 3, wherein: and a plurality of sound absorbers are distributed in the air collecting chamber at equal intervals.
6. The muffling device for an outdoor unit of an air conditioner of claim 3, wherein: the sound absorber comprises a shell and sound absorbing materials in the shell, and a plurality of through holes are formed in the shell.
7. The muffling device for an external air conditioner according to claim 6, wherein: and glass cloth is arranged between the shell and the sound-absorbing material.
8. The muffling device for an external air conditioner according to claim 1, wherein: be equipped with the rain-proof cap that is used for the air current direction on the silencer, and rain-proof cap can shelter from the air exit.
9. The muffling device for an external air conditioner according to claim 8, wherein: be equipped with the guide plate on the rain-proof cap, the guide plate is relative with the air exit.
10. The muffling device for an outdoor unit of an air conditioner of claim 9, wherein: the guide plate is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022049632.0U CN213020032U (en) | 2020-09-17 | 2020-09-17 | Noise eliminator for air conditioner outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022049632.0U CN213020032U (en) | 2020-09-17 | 2020-09-17 | Noise eliminator for air conditioner outdoor unit |
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| Publication Number | Publication Date |
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| CN213020032U true CN213020032U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022049632.0U Active CN213020032U (en) | 2020-09-17 | 2020-09-17 | Noise eliminator for air conditioner outdoor unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117212915A (en) * | 2023-08-08 | 2023-12-12 | 金智成建设集团股份有限公司 | Air conditioner installation machine position of building body |
| CN117212915B (en) * | 2023-08-08 | 2024-04-26 | 金智成建设集团股份有限公司 | Air conditioner installation machine position of building body |
-
2020
- 2020-09-17 CN CN202022049632.0U patent/CN213020032U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117212915A (en) * | 2023-08-08 | 2023-12-12 | 金智成建设集团股份有限公司 | Air conditioner installation machine position of building body |
| CN117212915B (en) * | 2023-08-08 | 2024-04-26 | 金智成建设集团股份有限公司 | Air conditioner installation machine position of building body |
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