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Manufacturing process of secondary noise reducing acoustic panel for air conditioner

A secondary noise reduction and manufacturing process technology, applied in the direction of noise suppression, etc., can solve problems such as inapplicability, separation of noise reduction modules, and limited space, so as to improve space utilization, maintain noise reduction effects, and increase service life. Effect

Inactive Publication Date: 2017-06-13
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

[0039] A manufacturing process of a secondary noise-reducing sound-absorbing panel for an air conditioner in this embodiment specifically includes the following steps:

[0040] Step 1. Make soundproof cotton;

[0041] Step 2. Paste the sound insulation cotton prepared in step 1 on the inner side of the partition;

[0042] 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

[0056] Same as Example 1, the difference is that the density of the sound-absorbing cotton layer in this example is preferably 1.1g / cm 3 , the mass ratio of the low-melting-point polypropylene fibers and the chemical fibers that make up the sound-absorbing cotton layer in this embodiment is 22:77. The thickness is 3 mm, and the thickness of the sound insulation cotton outside the periphery is 11 mm.

Embodiment 3

[0058] Same as Example 1, the difference is that the density of the sound-absorbing cotton layer in this example is preferably 1.3g / cm 3 ,, the mass ratio of the low-melting-point polypropylene fibers and the chemical fibers that make up the sound-absorbing cotton layer in this example is 25:80, the temperature of baking and heating in this example is 185°C, and the time of baking and heating is 195s, the sound-insulating cotton The thickness of the perimeter is 1 mm, and the thickness of the sound insulation cotton outside the perimeter is 9 mm.

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Abstract

The invention discloses a manufacturing process of a secondary noise reducing acoustic panel for an air conditioner and belongs to the technical field of air conditioner outdoor units. The manufacturing process comprises the steps that 1, sound insulation cotton is made; 2, the sound insulation cotton made in the step 1 is attached to the inner side face of an air conditioner outdoor unit separation plate; and 3, the sound insulation cotton is fixed to the inner side face of the separation plate through screws. The secondary noise reducing acoustic panel, manufactured through the technical scheme, for the air conditioner is environment-friendly, the noise reduction technology of the air conditioner outdoor unit can be further improved, and the space utilization rate of the air conditioner outdoor unit is effectively improved. Meanwhile, water generated in the air conditioner outdoor unit can be effectively avoided, the separation plate and the sound insulation cotton in the acoustic panel are separated, all layers of the sound insulation cotton are separated, and the noise reducing effect is kept.

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
Inventor 章健
Owner 安徽蓝格利通新材应用股份有限公司
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