CN219494356U - Central air conditioner air-out noise reduction device - Google Patents
Central air conditioner air-out noise reduction device Download PDFInfo
- Publication number
- CN219494356U CN219494356U CN202320584685.3U CN202320584685U CN219494356U CN 219494356 U CN219494356 U CN 219494356U CN 202320584685 U CN202320584685 U CN 202320584685U CN 219494356 U CN219494356 U CN 219494356U
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- central air
- silencing
- noise
- air outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Air-Flow Control Members (AREA)
Abstract
The utility model provides an air-out noise reduction device of a central air conditioner, which comprises a central air conditioner ventilation pipe and a first flange, wherein the end part of the central air conditioner ventilation pipe is fixedly connected with the first flange. The utility model has the advantages that: the tail end of the central air conditioner air outlet system, namely the outlet of the central air conditioner air outlet, is provided with the silencing plate, the silencing hole and the louver plates in a matched mode, so that the noise of the air conditioner air outlet is effectively reduced, the silencing plate is matched with the silencing hole to mainly disperse noise pollution, and reduce the decibels of the noise, the louver plates are matched with the silencing plate to furthest reduce the airflow transmission resistance and weaken the noise, and the silencing hole has the effects that when air flows through the silencing hole, the low-frequency airflow flowing noise spectrum is changed into the inaudible high-frequency or ultrahigh-frequency airflow, the audible sound component in the noise spectrum is obviously reduced, and the interference and the harm of the noise to people are reduced, so that the noise is effectively reduced by 10-15 decibels at the tail end air outlet of the central air conditioner by using the device, and the problems existing in the prior art are solved.
Description
Technical Field
The utility model relates to the technical field of central air conditioners, in particular to an air outlet noise reduction device of a central air conditioner.
Background
The central air conditioning system consists of one or more cold and heat source systems and a plurality of air conditioning systems, and the system is different from the traditional refrigerant type air conditioner, and adopts the liquid gasification refrigeration principle to provide the required cold energy for the air conditioning system so as to offset the heat load of the indoor environment, and the heating system provides the required heat for the air conditioning system so as to offset the cold and warm load of the indoor environment.
The central air conditioner air port is end equipment for air outlet and return air in a central air conditioner system, is air distribution equipment, and is used for sending cooled or heated air into a room, and the return air port is used for sucking indoor dirty air back, so that the air circulation is formed, the indoor cooling and heating effects are ensured, and meanwhile, the cooling and comfort level of indoor air is also ensured.
However, the air outlet of the conventional central air conditioner generates noise due to vibration caused by internal and external air pressure difference in the operation process and the impact and friction between the air body and the inner wall of the air conveying pipeline when the air body is conveyed in the air conveying pipeline, and noise reduction treatment is needed.
The utility model provides a central air conditioning air outlet noise reduction device of easy to assemble like chinese patent grant publication number CN215571158U, includes the interior machine and installs the play aerofoil on the interior machine, the air outlet has been seted up on the aerofoil, can dismantle in the air outlet and be connected with fixed frame, be connected with the mounting bracket through telescopic subassembly in the fixed frame, telescopic subassembly is fixed through four coupling assembling, four coupling assembling all set up in the aerofoil, install the board of making an uproar that is used for making an uproar in the mounting bracket, still be provided with the shutter in the mounting bracket, the shutter sets up in the board below of making an uproar that makes an uproar.
Above-mentioned patent can avoid the staff climbing when dismantling installation noise reduction board and shutter through setting up flexible subassembly and adjusting part, makes its dismantlement simple, simple to operate. However, only through the arrangement of the noise reduction plate, the noise reduction effect of the wind body in the propagation path is common, so that the air outlet of the central air conditioner still has certain noise pollution.
Disclosure of Invention
The object of the present utility model is to solve at least one of the technical drawbacks.
Therefore, an object of the present utility model is to provide a device for reducing noise of air outlet of a central air conditioner, which solves the problems mentioned in the background art and overcomes the shortcomings in the prior art.
In order to achieve the above purpose, an embodiment of an aspect of the present utility model provides a central air conditioner air outlet noise reduction device, which includes a central air conditioner ventilation pipe and a first flange, wherein the end of the central air conditioner ventilation pipe is fixedly connected with the first flange, and the end of the central air conditioner ventilation pipe is fixedly connected with a transfer box through the first flange;
the transfer box is of a front side opening structure, and a layer of silencing felt is fixedly connected to the inner wall of the transfer box;
the front side of the transfer box is fixedly connected with a second flange, the front side of the transfer box is fixedly connected with a central air conditioner air outlet through the second flange, and the central air conditioner air outlet is of a front side opening structure;
the inner side of the air outlet of the central air conditioner is fixedly connected with a plurality of silencing plates, and a plurality of silencing holes are formed in the outer surface of each silencing plate;
the opening of the air outlet of the central air conditioner is fixedly connected with a plurality of transversely arranged shutter plates.
By any of the above schemes, preferably, the central air-conditioning ventilation pipe is communicated with the transfer box, and the central air-conditioning ventilation pipe is fixedly connected with the transfer box through the first flange and a plurality of hexagon socket head cap bolts.
The technical scheme is adopted: the working principle of the device is that the air output by the central air conditioner flows through the central air conditioner ventilation pipe, then enters the transfer box, then enters the central air conditioner air outlet, and finally flows out from the outlet of the central air conditioner air outlet after flowing through the surfaces of the silencing plate and the louver plates.
In any of the above embodiments, it is preferable that the noise reduction felt is made of rock wool, and the thickness of the noise reduction felt is 0.5-0.7 cm.
By any of the above schemes, preferably, the transfer box is communicated with an air outlet of the central air conditioner, and the muffler plate is transversely arranged.
By any of the above schemes, it is preferable that the end of the muffler plate is welded with the inner wall of the air outlet of the central air conditioner, and the muffler plate is vertically arranged.
The technical scheme is adopted: the device has the advantages that the noise of the air outlet of the central air conditioner is effectively reduced through the matched arrangement of the silencing plate, the silencing hole and the louver plates, the silencing plate is matched with the silencing hole to mainly disperse noise pollution and reduce noise decibels, the louver plates are matched with the silencing plate to furthest reduce airflow transmission resistance and weaken noise, and the silencing hole has the effects that when air flows through the silencing hole, the low-frequency airflow flowing noise spectrum is changed into the inaudible high-frequency or ultrahigh-frequency airflow, so that audible sound components in the noise spectrum are obviously reduced, and the interference and harm of the noise to people are reduced, so that the device can be utilized to effectively reduce the noise by 10-15 decibels at the air outlet of the tail end of the central air conditioner, and the problems in the prior art are solved.
In any of the above embodiments, it is preferable that the muffler plate is installed obliquely and has an inclination angle of 40-45 degrees, and the shutter plate has a fusiform vertical section.
The technical scheme is adopted: the surface of the shutter plate is arc-shaped, and when air flows, the shutter plate can play roles in slow flow and diversion of the air, so that noise is reduced.
By any of the above schemes, it is preferable that the louver plates are vertically arranged and obliquely installed, and the end parts of the louver plates are welded with the inner wall of the air outlet of the central air conditioner.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the tail end of the central air conditioner air outlet noise reduction device, namely the outlet of the central air conditioner air outlet, is provided with the silencing plate, the silencing hole and the louver plates in a matched mode, so that the noise of the air conditioner air outlet is effectively reduced, the silencing plate is matched with the silencing hole to mainly disperse noise pollution, the decibel of the noise is reduced, the louver plates are matched with the silencing plate to reduce airflow transmission resistance and weaken the noise to the greatest extent, the silencing hole has the effect that when air flows through the silencing hole, the low-frequency airflow noise spectrum is changed into human inaudible high-frequency or ultrahigh-frequency airflow, audible sound components in the noise spectrum are obviously reduced, and accordingly, the noise is reduced by 10-15 decibels at the tail end air outlet of the central air conditioner by using the device, and the problem in the prior art is solved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the muffler plate of the present utility model;
fig. 3 is a schematic structural view of the transfer box of the present utility model.
In the figure: the air conditioner comprises a 1-central air conditioner ventilating pipe, a 2-first flange, a 3-transfer box, a 4-silencing felt, a 5-second flange, a 6-central air conditioner air outlet, a 7-silencing plate, 8-silencing holes and 9-louver plates.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1-3, the central air conditioner air outlet noise reduction device comprises a central air conditioner ventilation pipe 1 and a first flange 2, wherein the end part of the central air conditioner ventilation pipe 1 is fixedly connected with the first flange 2, and the end part of the central air conditioner ventilation pipe 1 is fixedly connected with a transfer box 3 through the first flange 2;
the transfer box 3 is of a front side opening structure, and the inner wall of the transfer box 3 is fixedly connected with a layer of silencing felt 4;
the front side of the transfer box 3 is fixedly connected with a second flange 5, the front side of the transfer box 3 is fixedly connected with a central air conditioner air outlet 6 through the second flange 5, and the central air conditioner air outlet 6 is of a front side opening structure;
the inner side of the air outlet 6 of the central air conditioner is fixedly connected with a plurality of silencing plates 7, and a plurality of silencing holes 8 are formed in the outer surface of each silencing plate 7;
a plurality of transversely arranged shutter plates 9 are fixedly connected at the mouth of the air outlet 6 of the central air conditioner.
Example 1: the central air conditioner ventilation pipe 1 is communicated with the transfer box 3, and the central air conditioner ventilation pipe 1 is fixedly connected with the transfer box 3 through the first flange 2 and a plurality of hexagon socket head cap bolts. The working principle of the device is that the air output by the central air conditioner flows through the central air conditioner ventilation pipe 1, then enters the transfer box 3, then enters the central air conditioner air outlet 6, and finally flows through the surfaces of the silencing plate 7 and the louver plates 9 and finally flows out from the outlet of the central air conditioner air outlet 6.
Example 2: the silencing felt 4 is made of rock wool, and the thickness of the silencing felt 4 is 0.5-0.7 cm. The transfer box 3 is communicated with a central air conditioner air outlet 6, and a silencing plate 7 is transversely arranged. The end of the muffler plate 7 is welded with the inner wall of the air outlet 6 of the central air conditioner, and the muffler plates 7 are vertically arranged. The end of the central air conditioner air outlet system, namely the outlet of the central air conditioner air outlet 6, is provided with the silencing plate 7, the silencing hole 8 and the louver plates 9 in a matched mode, so that the noise of the air conditioner air outlet is effectively reduced, the silencing plate 7 is matched with the silencing hole 8 to mainly disperse noise pollution, the decibels of the noise are reduced, the louver plates 9 are matched with the silencing plate 7 in a matched mode, the airflow transmission resistance can be furthest reduced, the noise is weakened, the silencing hole 8 has the effect that when air flows through the silencing hole 8, the low-frequency airflow noise spectrum is changed into the inaudible high-frequency or ultrahigh-frequency noise spectrum, the audible sound component in the noise spectrum is obviously reduced, and therefore, the noise is reduced by 10-15 decibels at the air outlet of the end of the central air conditioner, and the problem in the prior art is solved.
Example 3: the muffler plate 7 is obliquely arranged and has an inclination angle of 40-45 degrees, and the vertical section shape of the shutter plate 9 is a shuttle shape. The surface of the louver board 9 is arc-shaped, and when air flows, the louver board can play roles in slow flow and diversion of the air, so that noise is reduced. The shutter plates 9 are vertically arranged and obliquely installed, and the end parts of the shutter plates 9 are welded with the inner wall of the air outlet 6 of the central air conditioner.
The working principle of the utility model is as follows:
s1, air output by a central air conditioner flows through a central air conditioner ventilation pipe 1, then enters a transfer box 3, then enters a central air conditioner air outlet 6, and finally flows out from an outlet of the central air conditioner air outlet 6 after flowing through surfaces of a silencing plate 7 and a louver plate 9;
s2, the louver plates 9 are matched with the silencing plates 7, so that air flow transmission resistance can be reduced to the greatest extent, noise can be reduced, and the silencing holes 8 have the effects that when air flows through the silencing holes 8, the low-frequency air flow noise spectrum is changed into inaudible high-frequency or ultrahigh-frequency air, so that audible sound components in the noise spectrum are obviously reduced, interference and harm of noise to people are reduced, and the noise can be effectively reduced by 10-15 decibels at the tail end air outlet of the central air conditioner by using the device.
Compared with the prior art, the utility model has the following beneficial effects compared with the prior art:
the tail end of the central air conditioner air outlet noise reduction device, namely the outlet of the central air conditioner air outlet 6, effectively reduces the noise of the air conditioner air outlet through the matching arrangement of the silencing plate 7, the silencing hole 8 and the louver plates 9, the silencing plate 7 is matched with the silencing hole 8 to mainly disperse noise pollution, the decibel of the noise is reduced, the louver plates 9 are matched with the setting of the silencing plate 7, the airflow transmission resistance and the noise can be furthest reduced, the silencing hole 8 has the effect that when air flows through the silencing hole 8, the low-frequency airflow noise spectrum is changed into the inaudible high frequency or ultrahigh frequency, the audible sound component in the noise spectrum is obviously reduced, so that the noise is reduced to the interference and the injury of people, and the noise can be effectively reduced by 10-15 decibels at the tail end air outlet of the central air conditioner by using the device, thereby solving the problems in the prior art.
Claims (7)
1. The utility model provides a central air conditioning air-out noise reduction device, includes central air conditioning ventilation pipe (1) and first flange (2), the tip fixedly connected with first flange (2) of central air conditioning ventilation pipe (1), its characterized in that, the tip of central air conditioning ventilation pipe (1) is through first flange (2) fixedly connected with transfer box (3);
the transfer box (3) is of a front side opening structure, and a layer of silencing felt (4) is fixedly connected to the inner wall of the transfer box (3);
the front side of the transfer box (3) is fixedly connected with a second flange (5), the front side of the transfer box (3) is fixedly connected with a central air conditioner air outlet (6) through the second flange (5), and the central air conditioner air outlet (6) is of a front side opening structure;
the inner side of the central air conditioner air outlet (6) is fixedly connected with a plurality of silencing plates (7), and a plurality of silencing holes (8) are formed in the outer surface of each silencing plate (7);
the opening of the central air conditioner air outlet (6) is fixedly connected with a plurality of transversely arranged shutter plates (9).
2. A central air conditioner air-out noise reduction device as defined in claim 1, wherein: the central air conditioner ventilation pipe (1) is communicated with the transfer box (3), and the central air conditioner ventilation pipe (1) is fixedly connected with the transfer box (3) through the first flange (2) and a plurality of inner hexagon bolts.
3. A central air conditioner air-out noise reduction device as defined in claim 2, wherein: the silencing felt (4) is made of rock wool, and the thickness of the silencing felt (4) is 0.5-0.7 cm.
4. A central air conditioner air-out noise reduction device as defined in claim 3, wherein: the transfer box (3) is communicated with the central air conditioner air outlet (6), and the silencing plate (7) is transversely arranged.
5. The central air conditioner air-out noise reduction device as defined in claim 4, wherein: the end part of the silencing plate (7) is welded with the inner wall of the air outlet (6) of the central air conditioner, and the silencing plates (7) are vertically arranged.
6. The central air conditioner air-out noise reduction device as defined in claim 5, wherein: the silencing plate (7) is obliquely installed and has an inclination angle of 40-45 degrees, and the vertical section shape of the louver board (9) is a shuttle shape.
7. The central air conditioner air-out noise reduction device as defined in claim 6, wherein: the louver plates (9) are vertically arranged and obliquely installed, and the end parts of the louver plates (9) are welded with the inner wall of the central air conditioner air outlet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320584685.3U CN219494356U (en) | 2023-03-23 | 2023-03-23 | Central air conditioner air-out noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320584685.3U CN219494356U (en) | 2023-03-23 | 2023-03-23 | Central air conditioner air-out noise reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219494356U true CN219494356U (en) | 2023-08-08 |
Family
ID=87510974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320584685.3U Active CN219494356U (en) | 2023-03-23 | 2023-03-23 | Central air conditioner air-out noise reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219494356U (en) |
-
2023
- 2023-03-23 CN CN202320584685.3U patent/CN219494356U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205279277U (en) | Novel integral wind formula air conditioner of sending back to | |
| CN108302622A (en) | A kind of central air conditioning fan coil unit mounting structure of vibration and noise reducing | |
| CN219494356U (en) | Central air conditioner air-out noise reduction device | |
| CN102080871A (en) | Shock-absorbing wheel for fixing copper tube of air-conditioning outdoor unit | |
| CN211503203U (en) | Energy-saving and noise-reducing structure in ventilation process of air conditioning unit | |
| CN206269253U (en) | The floor blowing fan coil units sent are returned in a kind of side | |
| CN110848801A (en) | Air duct structure of indoor unit of air conditioner and air conditioner | |
| CN110848811A (en) | Cabinet air conditioner | |
| CN204678504U (en) | Air conditioner room unit and air-conditioning system | |
| CN2385246Y (en) | Fresh air exchanging type split air conditioner | |
| CN207501285U (en) | Ducting system, air conditioner indoor unit and air conditioner | |
| CN220489354U (en) | Indoor energy-saving ventilation structure of building | |
| CN2336248Y (en) | Externally hung room air conditioner | |
| CN110793177A (en) | Air outlet structure of air conditioner and cabinet air conditioner | |
| CN2402949Y (en) | External window type air conditioner | |
| CN220415786U (en) | Fan with give sound insulation and fall and make an uproar | |
| CN218348855U (en) | Novel silencer for central air conditioning ventilation pipe | |
| CN213339664U (en) | Cavity type micropore silencer | |
| CN219414913U (en) | Refrigerating type range hood | |
| CN204630178U (en) | A kind of evaporator assemblies and air conditioner room unit | |
| CN210267678U (en) | Silencing air supply device | |
| CN217464858U (en) | Structure for reducing noise of compressor | |
| CN212930279U (en) | Domestic new trend dehumidifier and inhale sound noise reduction structure thereof | |
| CN211204233U (en) | Air duct structure of indoor unit of air conditioner and air conditioner | |
| CN218269550U (en) | Noise reduction device of ventilation air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |