CN215372732U - Noise reduction device for small air conditioner outdoor unit - Google Patents
Noise reduction device for small air conditioner outdoor unit Download PDFInfo
- Publication number
- CN215372732U CN215372732U CN202120501472.0U CN202120501472U CN215372732U CN 215372732 U CN215372732 U CN 215372732U CN 202120501472 U CN202120501472 U CN 202120501472U CN 215372732 U CN215372732 U CN 215372732U
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- plate
- noise reduction
- outdoor unit
- air
- 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
Images
Landscapes
- Duct Arrangements (AREA)
Abstract
The utility model belongs to the technical field of environmental protection, and particularly discloses a noise reduction device for an external unit of a small air conditioner, which is formed by combining a noise reduction plate, an elastic partition plate, a low-resistance exhaust silencer, a steel base and a weather-resistant vibration damping pad, and has the functions of reducing air sound transmission, structure sound transmission and air inlet and exhaust; the elastic partition board is used for separating an air inlet channel and an air exhaust channel in the sound insulation cover, hot air exhausted by the unit is prevented from being absorbed by the unit to cause short circuit of air flow and influence the performance of the air conditioner, and meanwhile, structural sound of the unit is prevented from being transmitted to the noise reduction board of the sound insulation cover through the partition board and being transmitted to the indoor space. The utility model systematically solves the problem of noise influence of the air conditioner outdoor unit, not only effectively reduces the air sound and the structure sound of the air conditioner outdoor unit, but also has good ventilation and exhaust functions, stable noise reduction performance and compact appearance, can design the appearance size and assemble according to the field environment, and effectively solves the problem of noise contradiction between neighborhoods.
Description
Technical Field
The utility model relates to the technical field of environmental protection, in particular to a noise reduction device for an external unit of a small air conditioner.
Background
With the improvement of living standards, air conditioners have been moved to thousands of households. For homes and small offices, the required air conditioner power is low, and generally, a wall-mounted air conditioner (1, 1.5, 2, 2.5 machines, etc.) is mainly used, and an external air conditioner is usually installed on an outer wall. Because the distance between adjacent households is very small, noise generated by the operation of the air-conditioning outdoor unit affects the households through two transmission ways, namely air transmission (the noise is transmitted into the indoor of the household through doors, windows and holes on a wall body by air) and structure transmission (the noise is transmitted to a floor or a wall body by a steel bracket of the air-conditioning outdoor unit and then transmitted into the indoor), so that contradiction is generated, and the complaint event in the aspect becomes a chronic disease in a living area.
At present, there are four main solutions for noise reduction in this aspect: the method is to change the mute type air conditioner, but who goes money becomes the core of solving the problem, and the final result is always pending; the second method is that the rubber vibration damping pad is added on the base of the air conditioner external unit, the method has the effect of reducing noise of the air conditioner external unit mainly based on structural sound transmission, but has almost no effect of reducing noise of the air conditioner external unit mainly based on air sound transmission, the rubber vibration damping pad has poor weather resistance, and the vibration damping effect is gradually reduced along with rubber aging after several years, so that the noise problem can occur; the third method is moving, namely moving the air conditioner outdoor unit to a slightly far place, and the method is often limited by places and cannot be implemented; in the method, the air conditioner external unit is arranged in the sound insulation box, the method has the noise reduction effect on the air conditioner external unit mainly based on air sound transmission, but has almost no noise reduction effect on the air conditioner external unit mainly based on structural sound transmission, and the performance of the air conditioner external unit is often greatly reduced and most of the air conditioner external unit cannot be used due to unsmooth ventilation of the box body and short air flow, and the air conditioner external unit can be used only after part of plates on the sound insulation cover are removed, but the noise reduction effect cannot be achieved at the moment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a noise reduction device for an external unit of a small air conditioner, which aims to solve the problems in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: a noise reduction device for an external unit of a small air conditioner comprises an outer protective shell, a noise reduction plate, an elastic partition plate, a low-resistance exhaust silencer, a steel base and a weather-proof vibration damping pad; the outer protective shell is covered outside the air conditioner external unit, and the noise reduction plate is laid between the outer protective shell and the air conditioner external unit; the back surface of the air conditioner external unit is arranged on the building external wall, the bottom of the air conditioner external unit is arranged on a concrete plate, noise reduction plates are arranged on two side surfaces and the top surface of the air conditioner external unit, and a hexahedral sound insulation cover is erected together with the building external wall, the concrete plate of the air conditioner external unit and the low-resistance exhaust silencer to enclose the air conditioner external unit; the upper ends of two side surfaces of the outer protecting shell are provided with ventilation shutters, elastic partition plates are packaged between two ends of an air exhaust surface of the air conditioner external unit and the noise reduction plate to divide the internal space of the enclosed sound insulation cover into an air inlet area at the rear side and an air exhaust area at the front side, and an air inlet is reserved on the noise reduction plate at the top surface of the air conditioner external unit; the steel base is fixed with a bolt mounting hole of an air conditioner external unit through a bolt, the steel base is supported on a concrete slab through a weather-proof vibration damping pad, and the weather-proof vibration damping pads are adhered to four side faces of the steel base.
Preferably, the outer protective shell is of a downward-opening 'Contraband' structure, and surrounds the top surface and two side surfaces of the air conditioner fan.
Preferably, the noise reduction plate consists of an outer steel plate, a middle air duct and an inner sound absorption plate; the outer surface of the sound absorption plate is a perforated aluminum plate, the interior of the sound absorption plate is filled with damp-proof centrifugal glass wool, and the glass wool is coated with glass fiber cloth.
Preferably, the elastic partition plate is made of a silica gel plate, an elastic rubber plate or an elastic polymer material plate, the side edge of the elastic partition plate is in lap joint with the noise reduction plate, the top edge of the elastic partition plate is in lap joint with the inner wall of the outer protective shell, and the lap joint part is sealed by weather-proof sealing structure glue.
Preferably, the low-resistance exhaust silencer is composed of a plurality of obliquely arranged elliptical silencing pieces, the elliptical silencing pieces cover the exhaust surface of the whole air conditioner outdoor unit, the elliptical silencing pieces are fixed on a frame, and the frame is fixedly connected with the noise reduction plate through bolts.
Preferably, the oval silencing sheet is decorated by taking a perforated aluminum plate as a protective surface, and is filled with moisture-proof centrifugal glass wool coated by hydrophobic glass silk cloth to prepare the porous sound-absorbing plate.
Preferably, the steel base is formed by welding channel steel in a splicing manner, strip-shaped screw holes are preset in the channel steel, and weather-proof vibration damping pads are pasted on the side edges of the channel steel.
Preferably, the weather-resistant vibration damping pad is a polyurethane vibration damping pad, and the weather-resistant vibration damping pad is configured by calculation according to the total weight of the air conditioner outdoor unit and the steel base, so that the working frequency of the vibration damping system is lower than 12 Hz.
Compared with the prior art, the utility model has the beneficial effects that:
compared with the prior art, the utility model systematically solves the problem of noise influence of the air conditioner outdoor unit, not only effectively reduces the air sound and the structure sound of the air conditioner outdoor unit, but also has good ventilation and exhaust functions, stable noise reduction performance and compact appearance, can design the appearance size and assemble according to the field environment, and effectively solves the problem of noise contradiction between neighborhoods.
Drawings
FIG. 1 is a schematic top cross-sectional view of the present invention in its entirety;
fig. 2 is a schematic front sectional view of the present invention as a whole.
In the figure: 1. a noise reduction plate; 2. an elastic partition plate; 3. an elliptical noise damping sheet; 4. a frame; 5. a ventilation louver; 6. a weather-resistant vibration-damping pad; 7. a steel base; 8. a concrete slab; 9. building exterior walls; 10. an outer jacket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the present invention provides a technical solution: a small-sized air conditioner external unit noise reduction device is composed of an outer protective shell 10, a noise reduction plate 1, an elastic partition plate 2, a low-resistance exhaust silencer, a steel base 7 and a weather-proof vibration damping pad 6, and has the functions of reducing air sound transmission, structure sound transmission and air inlet and exhaust; the outer protective shell 10 covers the outside of the air conditioner external unit, and the noise reduction plate 1 is laid between the outer protective shell 10 and the air conditioner external unit; the back surface of the air conditioner outdoor unit is arranged on a building outer wall 9, the bottom of the air conditioner outdoor unit is arranged on a concrete plate 8, noise reduction plates 1 are arranged on two side surfaces and the top surface of the air conditioner outdoor unit, and a hexahedral sound insulation cover is erected together with the building outer wall 9, the concrete plate 8 of the air conditioner outdoor unit and a low-resistance exhaust silencer to enclose the air conditioner outdoor unit; the upper ends of two side surfaces of the outer protecting shell 10 are provided with ventilation shutters 5, elastic partition plates 2 are packaged between two ends of an air exhaust surface of the air conditioner external unit and the noise reduction plate 1 to divide the internal space of the enclosed sound insulation cover into an air inlet area at the rear side and an air exhaust area at the front side, and an air inlet is reserved on the noise reduction plate 1 at the top surface of the air conditioner external unit; the steel base 7 is fixed with a bolt mounting hole of an air conditioner external unit through a bolt, the steel base 7 is supported on a concrete slab 8 through a weather-resistant vibration damping pad 6, and the weather-resistant vibration damping pads 6 are adhered to four side surfaces of the steel base 7.
Further, the outer protective shell 10 is a structure with an opening facing downward in the shape of "Contraband", and surrounds the top surface and two sides of the air conditioner fan.
Further, the noise reduction plate 1 consists of an outer steel plate, a middle air duct and an inner sound absorption plate; the outer surface of the sound absorption plate is a perforated aluminum plate, the interior of the sound absorption plate is filled with damp-proof centrifugal glass wool, and the glass wool is coated with glass fiber cloth.
Further, the elastic partition board 2 is made of a silica gel board, an elastic rubber board or an elastic polymer material board, the side edge of the elastic partition board is in lap joint with the noise reduction board, the top edge of the elastic partition board is in lap joint with the inner wall of the outer protective shell 10, and the lap joint part is sealed by weather-proof sealing structural adhesive.
Furthermore, the low-resistance exhaust silencer is composed of a plurality of obliquely arranged elliptical silencing pieces 3, the elliptical silencing pieces cover the exhaust surface of the whole air conditioner outdoor unit, the elliptical silencing pieces 3 are fixed on a frame 4, and the frame 4 is fixedly connected with the noise reduction plate 1 through bolts.
Furthermore, the elliptical sound-absorbing sheet 3 is decorated by using a perforated aluminum plate as a protective surface, and is filled with moisture-proof centrifugal glass wool coated by hydrophobic glass fiber cloth to manufacture a porous sound-absorbing plate.
Further, the steel base 7 is formed by welding channel steel in a splicing manner, long-strip-shaped screw holes are preset in the channel steel, and weather-resistant vibration damping pads 6 are pasted on the side edges of the channel steel.
Furthermore, the weather-resistant vibration damping pad 6 is a polyurethane vibration damping pad, and is configured by calculation according to the total weight of the air conditioner external unit and the steel base, so that the working frequency of the vibration damping system is lower than 12 Hz.
The low-resistance exhaust silencer is a device capable of reducing noise by passing hot air of an air conditioner, the elastic partition plate 2 is used for separating an air inlet channel and an air exhaust channel in the sound insulation cover, the phenomenon that the performance of the air conditioner is influenced by short circuit of air flow caused by the fact that hot air exhausted by a unit is absorbed by the unit is avoided, and meanwhile, structural sound of the unit is also prevented from being transmitted to a noise reduction plate of the sound insulation cover through the partition plate and being transmitted to the indoor space.
As shown in fig. 2:
the air inlet function of the whole device is realized by that outdoor cold air enters from the ventilation shutter 5, enters the sound insulation cover through the air channel of the noise reduction plate 2 and is sucked by the air inlet of the air conditioner outdoor unit;
the whole air exhaust function of the device is realized by exhausting hot air exhausted by the fan of the air conditioner external unit to an air exhaust area in the sound insulation cover and then exhausting the hot air to the outside of the sound insulation cover through the air exhaust silencer.
The problem of noise influence of the air conditioner outdoor unit is solved systematically, air sound and structural sound of the air conditioner outdoor unit are effectively reduced, the air conditioner outdoor unit has a good ventilation and exhaust function, the noise reduction performance is stable, the appearance is compact, the appearance size can be designed and assembled according to the field environment, and the problem of noise contradiction between neighborhoods is effectively solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A noise reduction device for an external unit of a small air conditioner comprises an outer protective shell (10), a noise reduction plate (1), an elastic partition plate (2), a low-resistance exhaust silencer, a steel base (7) and a weather-resistant vibration damping pad (6); the noise reduction device is characterized in that the outer protective shell (10) covers the outside of the air conditioner external unit, and the noise reduction plate (1) is laid between the outer protective shell (10) and the air conditioner external unit; the back surface of the air conditioner outdoor unit is arranged on a building outer wall (9), the bottom of the air conditioner outdoor unit is arranged on a concrete plate (8), the noise reduction plates (1) are arranged on two side surfaces and the top surface of the air conditioner outdoor unit, and a hexahedral sound insulation cover is erected together with the building outer wall (9), the concrete plate (8) of the air conditioner outdoor unit and the low-resistance exhaust silencer to enclose the air conditioner outdoor unit; the upper ends of two side surfaces of the outer protecting shell (10) are provided with ventilation shutters (5), elastic partition plates (2) are packaged between two ends of an air exhaust surface of the air conditioner external unit and the noise reduction plate (1) to divide the internal space of the enclosure into an air inlet area at the rear side and an air exhaust area at the front side, and an air inlet is reserved on the noise reduction plate (1) at the top surface of the air conditioner external unit; the steel base (7) is fixed with a bolt mounting hole of an air conditioner external unit through a bolt, the steel base (7) is supported on a concrete slab (8) through a weather-resistant vibration damping pad (6), and the weather-resistant vibration damping pads (6) are adhered to four side surfaces of the steel base (7).
2. The noise reducer for an outdoor unit of a small air conditioner as claimed in claim 1, wherein: the outer protecting shell (10) is of an 'Contraband' structure with an opening facing downwards and surrounds the top surface and two side surfaces of the air conditioner fan.
3. The noise reducer for an outdoor unit of a small air conditioner as claimed in claim 1, wherein: the noise reduction plate (1) consists of an outer steel plate, a middle air duct and an inner sound absorption plate; the outer surface of the sound absorption plate is a perforated aluminum plate, the interior of the sound absorption plate is filled with damp-proof centrifugal glass wool, and the glass wool is coated with glass fiber cloth.
4. The noise reducer for an outdoor unit of a small air conditioner as claimed in claim 1, wherein: the elastic partition plate (2) is made of a silica gel plate, an elastic rubber plate or an elastic polymer material plate, the side edge of the elastic partition plate is in lap joint with the noise reduction plate, the top edge of the elastic partition plate is in lap joint with the inner wall of the outer protective shell (10), and the lap joint part is sealed by weather-proof sealing structural glue.
5. The noise reducer for an outdoor unit of a small air conditioner as claimed in claim 1, wherein: the low-resistance exhaust silencer is composed of a plurality of obliquely arranged elliptical silencing pieces (3), the elliptical silencing pieces cover the exhaust surface of the whole air conditioner external unit, the elliptical silencing pieces (3) are fixed on a frame (4), and the frame (4) is fixedly connected with a noise reduction plate (1) through bolts.
6. The noise reducer for external unit of small air conditioner as claimed in claim 5, wherein: the elliptical silencing sheet (3) is decorated by taking a perforated aluminum plate as a protective surface, and is filled with moisture-proof centrifugal glass wool coated by hydrophobic glass silk cloth to manufacture the porous sound-absorbing plate.
7. The noise reducer for an outdoor unit of a small air conditioner as claimed in claim 1, wherein: the steel base (7) is formed by welding channel steel in a splicing mode, long-strip-shaped screw holes are preset in the channel steel, and weather-resistant vibration damping pads (6) are pasted on the side edges of the channel steel.
8. The noise reducer for an outdoor unit of a small air conditioner as claimed in claim 1, wherein: the weather-proof vibration damping pad (6) is a polyurethane vibration damping pad, and is calculated and configured according to the total weight of the air conditioner outdoor unit and the steel base, so that the working frequency of the vibration damping system is lower than 12 Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120501472.0U CN215372732U (en) | 2021-03-09 | 2021-03-09 | Noise reduction device for small air conditioner outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120501472.0U CN215372732U (en) | 2021-03-09 | 2021-03-09 | Noise reduction device for small air conditioner outdoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215372732U true CN215372732U (en) | 2021-12-31 |
Family
ID=79623959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120501472.0U Active CN215372732U (en) | 2021-03-09 | 2021-03-09 | Noise reduction device for small air conditioner outdoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215372732U (en) |
-
2021
- 2021-03-09 CN CN202120501472.0U patent/CN215372732U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201893227U (en) | Ventilation and denoising device used in ultra-high voltage converter transformer | |
| CN210032167U (en) | Low-frequency noise insulation board and sound insulation cover | |
| CN203160760U (en) | Noise abatement machine room | |
| CN102853515A (en) | Broadband sound absorption air tube and air opening | |
| CN113048581A (en) | Noise reduction device for small air conditioner outdoor unit | |
| CN214833653U (en) | Building construction acoustic celotex board with fire prevention function | |
| CN215372732U (en) | Noise reduction device for small air conditioner outdoor unit | |
| CN103485891B (en) | A kind of quickly-assembling type noise elimination sound-insulating cover for mobile diesel generator | |
| CN211500420U (en) | Noise-reduction ventilation convex window | |
| CN208702788U (en) | Equilateral wedge shape composite muffler | |
| CN215565536U (en) | Natural draft soundproof window | |
| CN210033185U (en) | Ventilation noise reduction door | |
| CN205348870U (en) | Portable silence generators | |
| CN211119709U (en) | Rotor compressor with sound insulation cover | |
| CN210485969U (en) | Sound insulation building ventilation device | |
| CN2312419Y (en) | Integrated type room air conditioner placed in wall hole | |
| CN213979280U (en) | Sound insulation structure of light house | |
| CN220889033U (en) | Modular sound insulation device | |
| CN216522483U (en) | Heat pump set with noise reduction structure | |
| CN212006179U (en) | Air conditioner mounting structure for noise reduction | |
| CN214660504U (en) | Low-noise integrated generator set machine room convenient to move | |
| JP3071401U (en) | Silencer | |
| CN214063403U (en) | Large-scale fan is supplementary with giving sound insulation and encloses fender | |
| CN220673218U (en) | Miniaturized silence case becomes | |
| CN217640898U (en) | Ventilation, sound insulation, noise reduction device that indoor 35kV transformer was used |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |