CN209801652U - Noise reduction device of air conditioner outdoor unit - Google Patents
Noise reduction device of air conditioner outdoor unit Download PDFInfo
- Publication number
- CN209801652U CN209801652U CN201920446043.0U CN201920446043U CN209801652U CN 209801652 U CN209801652 U CN 209801652U CN 201920446043 U CN201920446043 U CN 201920446043U CN 209801652 U CN209801652 U CN 209801652U
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- China
- Prior art keywords
- rectifying
- air conditioner
- box
- outdoor unit
- rectification
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Abstract
the utility model discloses a noise reduction device of an air conditioner outdoor unit, which comprises a sound insulation board and a rectifying box, wherein a connecting seat and a plurality of mutually parallel rectifying boards are arranged in the rectifying box, the rectifying box is fixedly connected with the air conditioner outdoor unit through the connecting seat, and one side of the rectifying board close to an air inlet is provided with a rectifying tip; the sound insulation board is located around the rectifying box, the first containing cavity is filled with a first sound absorption material, and one side of the sound insulation board, which is close to the rectifying box, is provided with a first sound transmission through hole. The space in the rectifying box is divided into a plurality of rectifying cavities through the rectifying plate, so that the air flow is prevented from resonating above the radiating fan of the external fan, and the generation of aerodynamic noise is reduced; the sound insulation barrier formed by the sound insulation boards prevents noise generated when the outdoor unit operates from diffusing, and effectively prevents the outdoor unit from influencing the health of nearby residents.
Description
Technical Field
The utility model belongs to the technical field of the equipment of making an uproar falls, specifically speaking relates to an outer machine of air conditioner fall the device of making an uproar.
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 an outer machine device on a vibration reduction platform, but for eliminating aerodynamic noise generated by the operation of a fan, the number of devices and methods which can be selected at present is small.
SUMMERY OF THE UTILITY MODEL
To foretell not enough among the prior art, the utility model provides an outer machine of air conditioner device of making an uproar falls carries out the rectification through the air current to the fan combustion gas and comes the noise abatement to set up the noise diffusion that outer machine operation produced of sound insulation barrier.
In order to achieve the above object, the utility model discloses a solution is: a noise reduction device of an air conditioner outdoor unit comprises a sound insulation plate and a rectifying box, wherein an air outlet is formed in the top of the rectifying box, an air inlet is formed in the bottom of the rectifying box, a connecting seat and a plurality of mutually parallel rectifying plates are arranged in the rectifying box, the rectifying box is fixedly connected with the air conditioner outdoor unit through the connecting seat, the rectifying plates are vertically arranged, a rectifying tip is arranged on one side, close to the air inlet, of each rectifying plate, and a rectifying cavity is formed between every two adjacent rectifying plates; the sound insulation board and the rectifying box are fixedly connected and located around the rectifying box, when the rectifying box is installed at the top of an air conditioner external unit, the top of the sound insulation board is flush with the middle of the rectifying box, the bottom of the sound insulation board is flush with the middle of the air conditioner external unit, a first accommodating cavity is arranged in the sound insulation board, a first sound absorption material is filled in the first accommodating cavity, and a first sound transmission through hole communicated with the first accommodating cavity is formed in one side, close to the rectifying box, of the sound insulation board.
Further, the first sound absorbing material is a plastic foam.
Further, be equipped with second holding chamber in the cowling panel, second holding intracavity is filled has second sound absorbing material, the cowling panel is close to the both sides wall in rectification chamber be equipped with the second sound through-hole that passes of second holding chamber intercommunication.
Further, the second sound absorbing material is glass wool.
further, a wedge assembly is arranged in the first accommodating cavity and comprises an installation shaft and a plurality of partition plates, one end of the installation shaft is close to the sound insulation plate, one side of the rectification box is fixedly connected, the other end of the installation shaft is far away from the sound insulation plate, one side of the rectification box is fixedly connected, the fixed end of each partition plate is fixedly connected with the peripheral wall of the installation shaft, and a third sound transmission through hole is formed in each partition plate.
Furthermore, the connecting seat is a limiting ring, the limiting ring is close to the air inlet, and the limiting ring is fixedly sleeved on the peripheral wall of the air outlet of the air conditioner outdoor unit.
the utility model has the advantages that:
(1) a plurality of mutually parallel rectifying plates are arranged in the rectifying box, and the space in the rectifying box is divided into a plurality of rectifying cavities through the rectifying plates, so that the air flow is prevented from resonating above a heat radiating fan of an external fan, and the generation of aerodynamic noise is reduced;
(2) The rectification tip is arranged on one side, close to the air inlet, of the rectification plate, and collision between airflow and the bottom of the rectification plate can be reduced after the rectification tip is arranged, so that fewer vortexes are generated in the rectification cavity, and noise generated by vortex disturbance air in the rectification cavity is reduced;
(3) The sound insulation plates are arranged around the rectifying box, and the sound insulation barrier formed by the sound insulation plates prevents noise generated when the external unit operates from diffusing, so that the influence of the external unit on the health of nearby residents is effectively avoided.
Drawings
Fig. 1 is a plan view of an air conditioner outdoor unit;
FIG. 2 is a top view of the present invention with the rectifying plate removed;
Fig. 3 is a schematic view of the installation position of the present invention;
FIG. 4 is a schematic view of an installation position of a rectifying plate of the present invention;
FIG. 5 is a schematic view II of the installation position of the rectifying plate of the present invention;
FIG. 6 is a front view of the baffle of the present invention;
Fig. 7 is a schematic structural view of the wedge assembly of the present invention;
FIG. 8 is a top view I of the present invention taken away from the rectifying plate and mounted on an outdoor unit of an air conditioner;
Fig. 9 is a top view ii of the present invention, with the rectifying plate removed, mounted on an air conditioner outdoor unit;
in the drawings:
1-air conditioner outdoor unit, 11-protective screen, 12-exhaust port, 2-rectifying box, 21-air inlet, 22-air outlet, 23-connecting plate, 3-connecting seat, 4-rectifying plate, 41-rectifying tip, 42-rectifying cavity, 43-second sound transmission through hole, 5-sound insulation plate, 51-first sound transmission through hole, 6-wedge component, 61-mounting shaft and 62-partition plate.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
As shown in fig. 1, a heat dissipation fan of an outdoor unit 1 of a central air conditioner is installed at the top of the equipment, the heat dissipation fan continuously pushes air to move upwards and pass through an air outlet 12 at the top, heat dissipation is accelerated by flowing air, and a protective screen 11 is generally arranged above the heat dissipation fan.
The utility model provides an outer machine of air conditioner make an uproar device of falling, including acoustic celotex board 5 and rectifier box 2, as shown in fig. 2 and fig. 4, rectifier box 2's top is equipped with gas outlet 22, rectifier box 2's bottom is equipped with air inlet 21, also can be at the attached one deck sound absorbing material of rectifier box 2's inside wall as required. Be equipped with connecting seat 3 and a plurality of cowling panel 4 that are parallel to each other in the rectifier box 2, rectifier box 2 passes through connecting seat 3 and the outer 1 fixed connection of air conditioner, the vertical setting of cowling panel 4, cowling panel 4 are close to gas outlet 22, cowling panel 4 is close to one side of air inlet 21 is equipped with rectification pointed end 41, is equipped with rectification chamber 42 between two adjacent cowling panels 4, and when the air current moved from air inlet 21 towards gas outlet 22 direction, the flow direction of air current was close parallelly with cowling panel 4.
the acoustic celotex board 5 with rectifier box 2 fixed connection and being located around rectifier box 2, as shown in fig. 3, when rectifier box 2 installed at the outer 1 top of air conditioner, the top of acoustic celotex board 5 with the middle part of rectifier box 2 flushes, the bottom of acoustic celotex board 5 with the outer 1 middle part of air conditioner flushes, and the radiator fan of the outer machine 1 of air conditioner flushes with the middle part of acoustic celotex board 5 this moment, and acoustic celotex board 5 can block and absorb radiator fan operation by the at utmost like this the noise of production.
The baffle 5 and the cowling panel 4 are sealed box structures, be equipped with first holding chamber in the baffle 5, first holding intracavity is filled with first sound absorbing material, baffle 5 is close to one side of cowling case 2 be equipped with the first sound transmission through-hole 51 in first holding chamber intercommunication. As shown in fig. 5, a second accommodating cavity is formed in the rectifying plate 4, a second sound-absorbing material is filled in the second accommodating cavity, second sound-transmitting through holes 43 communicated with the second accommodating cavity are formed in two side walls of the rectifying plate 4 close to the rectifying cavity 42, and noise generated in the rectifying cavity 42 is eliminated through the second sound-absorbing material.
in the equipment design process, the experimenter adopts multiple sound absorbing materials to fill the first holding cavity and the second holding cavity, and the sound absorbing effect of different sound absorbing materials under the actual use scene is tested. The result shows that the first sound absorption material is made of plastic foam, and the second sound absorption material is made of glass wool, so that the sound absorption effect on the noise generated when the air conditioner outdoor unit 1 operates is the best.
As shown in fig. 6 and 7, a wedge assembly 6 is disposed in the first accommodating cavity, the wedge assembly 6 includes an installation shaft 61 and a plurality of partition plates 62, one end of the installation shaft 61 is fixedly connected to one side of the baffle 5 close to the rectifying box 2, the other end of the installation shaft 61 is fixedly connected to one side of the baffle 5 far away from the rectifying box 2, a fixed end of the partition plate 62 is fixedly connected to a peripheral wall of the installation shaft 61, the partition plate 62 is perpendicular to one side of the baffle 5 close to the rectifying box 2, the partition plate 62 is provided with a third sound transmission through hole, and a space between adjacent partition plates 62 is filled with a first sound absorbing material. The first sound absorbing material is divided into a plurality of wedge shapes by the partition plate 62, so that the characteristic impedance of the end surface of the first sound absorbing material close to the mounting shaft 61 is close to the characteristic impedance of air, and gradually transits to the characteristic impedance close to the first sound absorbing material in the process of being far away from the mounting shaft 61, and the noise absorption capacity of the sound insulation board 5 is greatly improved.
Example 1:
As shown in fig. 8, when an air conditioner outdoor unit 1 is separately installed, the equipment is directly and fixedly installed on the top of the outdoor unit. In this embodiment, the connecting seat 3 is a limiting ring, the limiting ring is matched with the exhaust port 12, a threaded hole and a limiting bolt matched with the threaded hole are arranged on the peripheral wall of the limiting ring, and the limiting ring is close to the air inlet 21. When the air conditioner outdoor unit is installed, the limiting ring is sleeved on the peripheral wall of the exhaust port 12 of the air conditioner outdoor unit 1, the limiting bolt is tightly abutted to the peripheral wall of the exhaust port 12, and the limiting ring is fixedly connected with the air conditioner outdoor unit 1 through the limiting bolt.
Example 2:
As shown in fig. 9, when a plurality of outdoor air conditioners 1 are arranged in parallel, a noise reduction device is installed on the top of each outdoor air conditioner 2, and due to space limitation, the sound insulation panel 5 between two adjacent outdoor air conditioners 2 is removed, but the sound insulation panel 5 still forms a sound insulation barrier around the whole outdoor air conditioner. In this embodiment, be equipped with connecting plate 23 on the acoustic celotex board 5, the periphery wall of connecting plate 23 and rectification case 2 all is equipped with the same screw hole, and connecting plate 23 passes through connecting bolt and rectification case 2 fixed connection, convenient to detach like this or install acoustic celotex board 5 additional.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. The utility model provides an outer machine of air conditioner fall device of making an uproar which characterized by: the air conditioner comprises a sound insulation plate and a rectification box, wherein an air outlet is formed in the top of the rectification box, an air inlet is formed in the bottom of the rectification box, a connecting seat and a plurality of mutually parallel rectification plates are arranged in the rectification box, the rectification box is fixedly connected with an air conditioner outdoor unit through the connecting seat, the rectification plates are vertically arranged, rectification tips are arranged on one side, close to the air inlet, of each rectification plate, and a rectification cavity is formed between every two adjacent rectification plates;
the sound insulation board and the rectifying box are fixedly connected and located around the rectifying box, when the rectifying box is installed at the top of an air conditioner external unit, the top of the sound insulation board is flush with the middle of the rectifying box, the bottom of the sound insulation board is flush with the middle of the air conditioner external unit, a first accommodating cavity is arranged in the sound insulation board, a first sound absorption material is filled in the first accommodating cavity, and a first sound transmission through hole communicated with the first accommodating cavity is formed in one side, close to the rectifying box, of the sound insulation board.
2. The noise reducer for an outdoor unit of an air conditioner as set forth in claim 1, wherein: the first sound absorbing material is a plastic foam.
3. The noise reducer for an outdoor unit of an air conditioner as set forth in claim 1, wherein: the rectifying plate is internally provided with a second accommodating cavity, a second sound absorption material is filled in the second accommodating cavity, and second sound transmission through holes communicated with the second accommodating cavity are formed in two side walls of the rectifying plate close to the rectifying cavity.
4. the noise reducer for an outdoor unit of an air conditioner as set forth in claim 3, wherein: the second sound absorbing material is glass wool.
5. the noise reducer for an outdoor unit of an air conditioner as set forth in claim 1, wherein: the utility model discloses a rectifier box, including baffle, first holding intracavity is equipped with wedge subassembly, wedge subassembly is including installation axle and a plurality of baffle, the one end of installation axle with the acoustic celotex board is close to one side fixed connection of rectifier box, the other end of installation axle with the acoustic celotex board is kept away from one side fixed connection of rectifier box, the stiff end of baffle with the perisporium fixed connection of installation axle, the baffle is equipped with the third and passes a sound through-hole.
6. The noise reducer for an outdoor unit of an air conditioner as set forth in claim 1, wherein: the air conditioner outdoor unit is characterized in that the connecting seat is a limiting ring, the limiting ring is close to the air inlet, and the limiting ring is fixedly sleeved on the peripheral wall of an air outlet of the air conditioner outdoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446043.0U CN209801652U (en) | 2019-04-03 | 2019-04-03 | Noise reduction device of air conditioner outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446043.0U CN209801652U (en) | 2019-04-03 | 2019-04-03 | Noise reduction device of air conditioner outdoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209801652U true CN209801652U (en) | 2019-12-17 |
Family
ID=68828100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920446043.0U Expired - Fee Related CN209801652U (en) | 2019-04-03 | 2019-04-03 | Noise reduction device of air conditioner outdoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209801652U (en) |
-
2019
- 2019-04-03 CN CN201920446043.0U patent/CN209801652U/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: 20191217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |