CN203571997U - Sound insulation structure for outer wall plate of air conditioning cabinet - Google Patents
Sound insulation structure for outer wall plate of air conditioning cabinet Download PDFInfo
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- CN203571997U CN203571997U CN201320682152.5U CN201320682152U CN203571997U CN 203571997 U CN203571997 U CN 203571997U CN 201320682152 U CN201320682152 U CN 201320682152U CN 203571997 U CN203571997 U CN 203571997U
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Abstract
The utility model discloses a sound insulation structure for an outer wall plate of an air conditioning cabinet. The sound insulation structure comprises a sound insulation outer wall layer adjoining the outer side of the air conditioning cabinet, a sound absorption inner barrier layer adjoining the inner side of the air conditioning cabinet, and an air insulation layer arranged between the sound insulation outer wall layer and the sound absorption inner barrier layer in a sandwiched mode. The sound insulation outer wall layer is provided with an outer side outer plate, a polyurethane foaming insulating layer, a first outer side inner plate, a damp adhesive layer and a second outer side inner plate, wherein the outer side outer plate, the polyurethane foaming insulating layer, the first outer side inner plate, the damp adhesive layer and the second outer side inner plate are sequentially stacked from the outer side of the air conditioning cabinet to inside. The sound absorption inner barrier layer is provided with an inner side outer plate, a sound absorption material layer and an inner side inner plate, wherein the inner side outer plate, the sound absorption material layer and the inner side inner plate are sequentially stacked from the inner side of the air conditioning cabinet to inside. The sound insulation structure for the outer wall plate of the air conditioning cabinet has the superior sound insulation performance, greatly reduces noise outside the air conditioning cabinet, can meet the requirements of air conditioning units of different specifications, and is particularly suitable for a fan section of which the noise is the highest in the whole combined type air conditioning cabinet.
Description
Technical field:
The utility model relates to a kind of air-conditioning sound insulation anti-noise structure, relates in particular to a kind of sound insulating structure of air-conditioning box Side fascia, belongs to air-conditioning technical field.
Background technology:
Air-conditioning equipment air-supply unavoidably will bring noise, blower fan in combined air conditioner unit is in operation and will produces larger noise, especially the unit that air quantity is larger (as 20000 cubes ms/h, the unit of pitot-static pressure 1000Pa), the noise power level that its blower fan produces can reach 95-97 decibel.The sound-insulation capability of conventional air-conditioning box Side fascia is comparatively limited, in standard GB/T/T14294, the outside engine noise of above-mentioned unit must not stipulate and is surpassed 77 decibels, thereby can find out, the sound-insulation capability of general air-conditioning box Side fascia is approximately only 20 decibels.
Utility model content:
Technical problem to be solved in the utility model is to overcome the low defect of existing air-conditioning box Side fascia sound-insulation capability, and a kind of sound insulating structure of air-conditioning box Side fascia is provided, and to improve sound insulation property, reduces the outside engine noise of air-conditioning box.
The technical scheme in the invention for solving the technical problem is as follows:
A sound insulating structure for air-conditioning box Side fascia, it comprises in abutting connection with the sound insulation outer wall layer in air-conditioning box outside, in abutting connection with the sound absorption inner barrier layer of air-conditioning box inner side and the air buffer that is folded in this sound insulation outer wall layer and absorbs sound between inner barrier layer; Described sound insulation outer wall layer is by outside outside plate, Polyurethane insulating foam layer, the first outer apodema, damping adhesive-layer and the second outer apodema for stacking gradually in air-conditioning box lateral; Described sound absorption inner barrier layer is inwardly inner side outside plate, sound-absorbing material layer and the interior apodema stacking gradually by air-conditioning box inner side.
Described the first outer apodema and the second outer apodema are made by the thick galvanized steel plain sheet of 1mm, described outside outside plate is made by the thick zinc-aluminium-alloy steel plate of 1mm, described interior apodema is made by the thick galvanized steel plain sheet of 1.2mm, and described inner side outside plate is made by the thick perforation galvanized steel plain sheet of 0.6mm.
The punching rate of described inner side outside plate is 50%.
The thickness of described Polyurethane insulating foam layer is 50mm, and described sound-absorbing material layer is formed by ultra-fine fibre glass filling, and thickness is 50mm, and the thickness of described air buffer is 50mm, and the thickness of described damping adhesive-layer is 2mm.
The density of described ultra-fine fibre glass is 32Kg/m
3.
At described inner side outside plate, by the inner surface of sound-absorbing material layer, post glass fabric.
In described air buffer, be provided with a plurality of angle iron frames, this angle iron frame is formed by fixedly connecting by main framing and installation bent plate, this main framing connects described sound insulation outer wall layer, this installation bent plate connects described sound absorption inner barrier layer, between described installation bent plate and sound absorption inner barrier layer, is provided with barrier liner.
Compare with common air-conditioning box Side fascia, the sound insulating structure of air-conditioning box Side fascia described in the utility model has more superior sound insulation property, greatly reduces the outside engine noise of air-conditioning box.Adopt the sound-insulation capability of common standard Side fascia and the utility model structure to be compared as follows table:
The utlity model has as can be seen here comparatively superior sound insulation property.
With 26000 cubes ms/h of a certain air quantity, the air-conditioning box of pitot-static pressure 1250Pa is example, owing to having adopted the utility model structure, through third party authoritative institution, detects and confirms, air-conditioning box outside engine noise value is only 54 decibels, than the maximum outside engine noise limit value of national Specification, has declined fully 25 decibels.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is mounting structure figure of the present utility model.
The specific embodiment:
Below in conjunction with drawings and Examples, the utility model is described in further detail, but can not limits protection domain of the present utility model with this.
Refer to Fig. 1, the sound insulating structure of diagram air-conditioning box Side fascia is arranged on air-conditioning box Side fascia, comprises sound insulation outer wall layer 01, sound absorption inner barrier layer 02 and air buffer 03; This sound insulation outer wall layer 01 is in abutting connection with air-conditioning box outside, and this sound absorption inner barrier layer 02 is in abutting connection with air-conditioning box inner side, and this air buffer 03 is folded between this sound insulation outer wall layer 01 and sound absorption inner barrier layer 02.
Described sound insulation outer wall layer 01 is inner enhancement mode sandwiched type structure, by outside outside plate 11, the outer apodema 13 of Polyurethane insulating foam layer 12, first, damping adhesive-layer 14 and the second outer apodema 15 for stacking gradually in air-conditioning box lateral.The outside outside plate 11 in next-door neighbour's air-conditioning box outside is made by the thick zinc-aluminium-alloy steel plate of 1mm, the second outer apodema 15 of next-door neighbour's air buffer 03 is made by the thick galvanized steel plain sheet of 1mm, the flexible damping adhesive-layer 14 that side is 2mm by thickness is within it sticked on the first outer apodema 13 again, and this first outer apodema 13 is made by the thick galvanized steel plain sheet of 1mm.Filling Polyurethane foaming thermal-insulating between outside outside plate 11 and the first outer apodema 13, forms Polyurethane insulating foam layer 12, and the thickness of this Polyurethane insulating foam layer 12 is 50mm.Then integrally closed forms a whole sound insulation outer wall layer 01 after inner foamable.
Known according to Principles of Acoustics, determine that the topmost factor of wallboard oise insulation factor is the surface density of this wallboard, that is to say that the steel plate of wallboard use is thicker, surface density is larger, and oise insulation factor is larger, and generally speaking surface density doubles, and oise insulation factor can improve 5 decibels.But based on considering of air-conditioning box manufacturing process and cost, can not unrestrictedly add the thickness of steel plate, through repetition test Analysis deterrmination, inside and outside steel plate all adopts 1.0mm the most reasonable.Secondly, according to sound insulating theory, adopt the steel plate therebetween of two layers of 1.0mm thickness to have better defening effect with " free damping layer structure " of flexible damping layer single steel plate thicker than 2.0mm (having identical surface density with two-layer 1.0mm steel plate), this structure is also usually used in the sound insulation of automobile is processed, so the utility model has adopted the structure of sticking on the first outer apodema 13 that 1.0mm is thick in the second outer apodema 15, further to improve sound-insulation capability.
Described sound absorption inner barrier layer 02 has sound-insulation capability concurrently, and it is inwardly inner side outside plate 21, sound-absorbing material layer 22 and the interior apodema 23 stacking gradually by air-conditioning box inner side.The interior apodema 23 of next-door neighbour's air buffer 03 is made by the thick galvanized steel plain sheet of 1.2mm; The inner side outside plate 21 of next-door neighbour's air-conditioning box inner side is made by the thick perforation galvanized steel plain sheet of 0.6mm, and its punching rate is 50%; Between this inner side outside plate 21 and interior apodema 23, packing density is 32Kg/m
3ultra-fine fibre glass, form sound-absorbing material layer 22, thickness is 50mm; At described inner side outside plate 21, by the inner surface of sound-absorbing material layer 22, post glass fabric, to prevent that glass fibre from dispersing.The noise of air-conditioning box inner side, through the inner side outside plate 21 of perforate, is absorbed by the ultra-fine fibre glass of sound-absorbing material layer 22, interior 23 effects of playing sound insulation of interior apodema.
In the middle of two layers of punched steel plate, filling the structure that super glass wool sound-absorbing material is made acoustical plate, is the basic structure of common bend muffler, silencer.The utility model utilizes this principle, changes the punched steel plate of a side into the plain plate of not boring a hole, and makes it have the function of sound absorption and sound insulation concurrently.
Between described sound insulation outer wall layer 01 and sound absorption inner barrier layer 02, the air buffer 03 that thickness is 50mm is set, forms air damping layer, strengthened the sound-insulation capability of total.The clearance space of this 50mm just in time arranges the angle iron frame of air-conditioning box, has effectively utilized space.
Building double wall soundproof principle and lot of experimental data confirmation, the double wall (Thistle board, surface density 28Kg/m2) with 50mm air blanketing has 6 decibels of above additional oise insulation factors.Although air buffer 03 is also 50mm in the utility model, both sides wallboard surface density less (being respectively 9.4Kg/m2 and 23.4Kg/m2), so additional oise insulation factor is only 3 decibels.
When the utility model is installed, refer to Fig. 2, in the one side of closing on air-conditioning box outside, sound insulation outer wall layer 01 is installed, in the one side of closing on air-conditioning box inner side, sound absorption inner barrier layer 02 is installed, reserve 50mm gap between the two, form air buffer 03.In described air buffer 03, be provided with a plurality of angle iron frames, this angle iron frame is formed by fixedly connecting by main framing 04 and installation bent plate 05.Described main framing 04 connects described sound insulation outer wall layer 01, and described installation bent plate 05 connects described sound absorption inner barrier layer 02.
When the utility model structure is installed, note also two critical processes: at key position, install additional and cut off the barrier liner 07 of solid-borne sound transmission passage and carry out silica gel sealing operation for forming confined air gas-bearing formation.
A, between hardware if during rigid attachment, noise can penetrate acoustic isolater and spread out of outside case by the mode of solid-borne sound transmission, be provided with the barrier liner 07 that thickness is 3.0mm, to cut off solid-borne sound transmission passage between described installation bent plate 05 and sound absorption inner barrier layer 02 for this reason.
B, air buffer 03 must be bubble-tight structure, can play the effect of resistance damping, so sealed (see figure 2) at the joint of inner side outside plate 21 with fluid sealant 06.
Claims (7)
1. a sound insulating structure for air-conditioning box Side fascia, is characterized in that: described sound insulating structure comprises in abutting connection with the sound insulation outer wall layer in air-conditioning box outside, in abutting connection with the sound absorption inner barrier layer of air-conditioning box inner side and the air buffer that is folded in this sound insulation outer wall layer and absorbs sound between inner barrier layer; Described sound insulation outer wall layer is by outside outside plate, Polyurethane insulating foam layer, the first outer apodema, damping adhesive-layer and the second outer apodema for stacking gradually in air-conditioning box lateral; Described sound absorption inner barrier layer is inwardly inner side outside plate, sound-absorbing material layer and the interior apodema stacking gradually by air-conditioning box inner side.
2. the sound insulating structure of air-conditioning box Side fascia according to claim 1, it is characterized in that: described the first outer apodema and the second outer apodema are made by the thick galvanized steel plain sheet of 1mm, described outside outside plate is made by the thick zinc-aluminium-alloy steel plate of 1mm, described interior apodema is made by the thick galvanized steel plain sheet of 1.2mm, and described inner side outside plate is made by the thick perforation galvanized steel plain sheet of 0.6mm.
3. the sound insulating structure of air-conditioning box Side fascia according to claim 2, is characterized in that: the punching rate of described inner side outside plate is 50%.
4. the sound insulating structure of air-conditioning box Side fascia according to claim 2, it is characterized in that: the thickness of described Polyurethane insulating foam layer is 50mm, described sound-absorbing material layer is formed by ultra-fine fibre glass filling, thickness is 50mm, the thickness of described air buffer is 50mm, and the thickness of described damping adhesive-layer is 2mm.
5. the sound insulating structure of air-conditioning box Side fascia according to claim 4, is characterized in that: the density of described ultra-fine fibre glass is 32Kg/m
3.
6. the sound insulating structure of air-conditioning box Side fascia according to claim 4, is characterized in that: at described inner side outside plate, by the inner surface of sound-absorbing material layer, post glass fabric.
7. the sound insulating structure of air-conditioning box Side fascia according to claim 1, it is characterized in that: in described air buffer, be provided with a plurality of angle iron frames, this angle iron frame is formed by fixedly connecting by main framing and installation bent plate, this main framing connects described sound insulation outer wall layer, this installation bent plate connects described sound absorption inner barrier layer, between described installation bent plate and sound absorption inner barrier layer, is provided with barrier liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320682152.5U CN203571997U (en) | 2013-10-31 | 2013-10-31 | Sound insulation structure for outer wall plate of air conditioning cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320682152.5U CN203571997U (en) | 2013-10-31 | 2013-10-31 | Sound insulation structure for outer wall plate of air conditioning cabinet |
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| Publication Number | Publication Date |
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| CN203571997U true CN203571997U (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320682152.5U Expired - Lifetime CN203571997U (en) | 2013-10-31 | 2013-10-31 | Sound insulation structure for outer wall plate of air conditioning cabinet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061631A (en) * | 2014-06-12 | 2014-09-24 | 珠海格力电器股份有限公司 | Air conditioning outdoor unit denoising structure and air conditioner comprising denoising structure |
| CN106500203A (en) * | 2016-10-31 | 2017-03-15 | 珠海格力电器股份有限公司 | A kind of denoising structure of air-conditioner outdoor unit, casing of outdoor and air-conditioner outdoor unit |
| CN113464605A (en) * | 2021-07-15 | 2021-10-01 | 珠海格力电器股份有限公司 | Shock attenuation cover and refrigeration plant |
-
2013
- 2013-10-31 CN CN201320682152.5U patent/CN203571997U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061631A (en) * | 2014-06-12 | 2014-09-24 | 珠海格力电器股份有限公司 | Air conditioning outdoor unit denoising structure and air conditioner comprising denoising structure |
| CN104061631B (en) * | 2014-06-12 | 2018-03-06 | 珠海格力电器股份有限公司 | Outdoor machine of air-conditioner denoising structure and the air-conditioning with the denoising structure |
| CN106500203A (en) * | 2016-10-31 | 2017-03-15 | 珠海格力电器股份有限公司 | A kind of denoising structure of air-conditioner outdoor unit, casing of outdoor and air-conditioner outdoor unit |
| CN113464605A (en) * | 2021-07-15 | 2021-10-01 | 珠海格力电器股份有限公司 | Shock attenuation cover and refrigeration plant |
| CN113464605B (en) * | 2021-07-15 | 2023-02-17 | 珠海格力电器股份有限公司 | Shock attenuation cover and refrigeration plant |
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