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Manufacturing process of secondary noise reduction sound absorption plate for air conditioner

A secondary noise reduction and manufacturing process technology, applied in noise suppression, applications, household heating, etc., can solve problems such as inapplicability, separation of noise reduction modules, and limited space, so as to improve space utilization and maintain noise reduction effect, the effect of improving the service life

Inactive Publication Date: 2017-04-05
安徽蓝格利通新材应用股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this application is that the water generated in the outdoor unit of the air conditioner will easily cause the noise reduction module stuck on the inside of the outdoor unit of the air conditioner to fall off, and even cause the layers of the noise reduction module to separate, losing the noise reduction effect. The space inside the outdoor unit is limited, and it is difficult to provide a suitable installation point for the noise reduction module
However, the disadvantage of this application is that the layers of the full-frequency sound-absorbing cotton layer in this application are bonded at a certain temperature by an adhesive, and the full-frequency sound-absorbing cotton layer produced by the glue bonding process does not It is not suitable for installation in outdoor air conditioners that are prone to water generation, and the glue bonding process is harmful to the human body and does not meet environmental protection requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A manufacturing process of a secondary noise-reducing sound-absorbing panel for an air conditioner in this embodiment specifically includes the following steps:

[0036] Step 1. Make soundproof cotton;

[0037] Step 2. Paste the sound insulation cotton prepared in step 1 on the inner side of the partition;

[0038] Step 3: Fix the sound insulation cotton on the inner side of the partition by screws. It should be noted that in the prior art, the noise reduction module is usually installed in the outdoor unit of the air conditioner by glue bonding, but during long-term use, the noise reduction module stuck to the inside of the outdoor unit of the air conditioner due to the presence of condensed water It is easy to fall off, but this embodiment fixes the sound-insulating cotton on the inner side of the partition through screw installation, which not only solves the technical problem of separating the partition and sound-insulating cotton in the secondary noise-reducing so...

Embodiment 2

[0048] Same as Example 1, the difference is that the density of the chemical fibers in this example is preferably 0.5g / cm 3 , the surrounding temperature of the mold cavity is 190°C, the temperature of the part outside the mold cavity is 140°C, the pressure holding time of the mold is controlled at 1 min, the thickness of the sound insulation cotton is 3 mm, and the thickness of the part outside the periphery of the sound insulation cotton is 11mm.

Embodiment 3

[0050] With embodiment 1, the difference is that the density of the chemical fibers in this embodiment is preferably 1.5g / cm 3 , the surrounding temperature of the mold cavity is 250°C, the temperature of the part outside the mold cavity is 160°C, the pressure holding time of the mold is controlled at 8 minutes, the thickness of the sound insulation cotton is 1 mm, and the thickness of the part outside the periphery of the sound insulation cotton is 9 mm.

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Abstract

The invention discloses a manufacturing process of a secondary noise reduction sound absorption plate for an air conditioner and belongs to the technical field of air conditioner outdoor units. The manufacturing process comprises the following steps: step 1, manufacturing sound-proof cotton; step 2, laminating the sound-proof cotton manufactured in the step 1 on the inner side surface of a partition of an air conditioner outdoor unit; and step 3, fixing the sound-proof cotton on the inner side surface of the partition through screws. The secondary noise reduction sound absorption plate for the air conditioner, manufactured by the technical scheme, is environment-friendly, can further improve the silencing technology of the air conditioner outdoor unit, effectively improves the space utilization ratio of the air conditioner outdoor unit, meanwhile, can effectively prevent water generated in the air conditioner outdoor unit from separating the partition from the sound-proof cotton in the sound absorption plate, also prevents all layers of the sound-proof cotton from separation, and keeps the noise reduction effect.

Description

technical field [0001] The present invention relates to the technical field of the outdoor unit of the air conditioner, and more specifically relates to a manufacturing process of a secondary noise-reducing sound-absorbing panel for the air-conditioner. Background technique [0002] With the continuous improvement of people's requirements for the quality of life, the noise of air conditioners has attracted more and more attention from consumers, and it has become a major consideration when purchasing air conditioners. The noise of the outdoor unit of the air conditioner mainly comes from the fan, compressor and its piping system of the outdoor unit. The medium and high frequency electromagnetic noise emitted by the motor of the press body and the medium and low frequency mechanical noise of the rotor rotating machinery are superimposed on each other and radiated outward. In addition, the impact of the flow of refrigerant on the pipeline causes the vibration of the pipeline,...

Claims

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Application Information

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IPC IPC(8): F24F13/24
CPCF24F13/24F24F2013/242
Inventor 章健
Owner 安徽蓝格利通新材应用股份有限公司
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