Sound insulation cotton with multi-layer sound absorbing materials and compressor

A technology of sound-absorbing materials and sound-insulating cotton, which is applied in the fields of noise suppression, mechanical equipment, machines/engines, etc., can solve the problem of low radiation noise of sound-insulating cotton, and achieve the effect of facilitating absorption, wide source of materials, and simple structure

Pending Publication Date: 2019-01-15
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned technical problems in the prior art, one of the objectives of the present invention is to provide a sound-insulating cotton containing multiple layers of sound-absorbing materials, which arranges at least two kinds of sound-absorbing materi

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Sound insulation cotton with multi-layer sound absorbing materials and compressor
  • Sound insulation cotton with multi-layer sound absorbing materials and compressor
  • Sound insulation cotton with multi-layer sound absorbing materials and compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment relates to a compressor, and the outside of the compressor is covered with sound-insulating cotton laminated with various sound-absorbing materials.

[0029] like image 3 As shown, the sound-insulating cotton in this embodiment includes a sound-absorbing material layer 100 and a sound-insulating material layer 200 . The sound-insulating material is a layer of rubber PVC; the sound-absorbing material 100 is composed of three layers, namely the sound-absorbing material 10 with a relatively small volume density (the first layer), and the sound-absorbing material 20 with a relatively medium volume density (the first layer). The second layer) and the sound-absorbing material 30 (the third layer) with a larger volume density, the three-layer sound-absorbing material is stacked up and down, and the edge and one or two places in the middle are sewn with sutures 40, such as Figure 4 As shown; the third layer 30 of the entire sound-absorbing material layer 100 ...

Embodiment 2

[0035] This embodiment relates to a compressor, and the outside of the compressor is covered with sound-insulating cotton laminated with various sound-absorbing materials.

[0036] like image 3 As shown, the sound-insulating cotton in this embodiment is the same as the sound-insulating cotton in Example 1, and the performance change rule of the sound-absorbing material is only different from that in the embodiment. In this embodiment, each layer of sound-absorbing material is 15mm thick, and 1mm behind the acoustic material.

Embodiment 3

[0038] This embodiment relates to a compressor, and the outside of the compressor is covered with sound-insulating cotton laminated with various sound-absorbing materials.

[0039] like image 3 As shown, the sound-insulating cotton in this embodiment is the same as the sound-insulating cotton in Example 1, and the performance change rule of the sound-absorbing material is only different from that in the embodiment. In this embodiment, each layer of sound-absorbing material is 4mm thick, and 3mm behind the acoustic material.

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Abstract

The invention belongs to the technical field of noise reduction and discloses a sound insulation cotton with multi-layer sound absorbing materials and a compressor. The sound insulation cotton includes an inner sound absorbing material layer and an outer sound insulation material layer, wherein the sound absorbing material layer includes at least two layers of sound absorbing materials of the samematerial or different materials with the body density increasing layer by layer or the porosity decreasing layer by layer or the flow resistance increasing layer by layer or the structure factor increasing layer by layer from the inside to the outside, the sound insulation material layer includes a layer of sound insulation materials, the sound absorbing material layer is made by stitching all the sound absorbing materials with sutures, and the layer with the largest density or the smallest porosity, the largest flow resistance or the largest structural factor of the sound absorbing materiallayer is cemented with the sound insulation material layer. The sound insulation cotton is advantaged in that the sound insulation cotton has a wide range of sources, simple structure, easy processingand wide applicability, has a higher sound absorption coefficient, is more conducive to noise absorption, especially for noise with a wide frequency band.

Description

technical field [0001] The invention belongs to the technical field of noise reduction and noise reduction, and in particular relates to a sound-insulating cotton containing multiple layers of sound-absorbing materials and a compressor. Background technique [0002] Existing air conditioners generally have a compressor, which is considered the heart of the air conditioner, and the noise is relatively loud during operation. In a noisy environment during the day, people may not feel the noise of the air conditioner compressor, but it is relatively quiet At night, the noise from the air conditioner compressor will be extraordinarily noisy, especially the low-frequency noise, which is the main source of human discomfort and will seriously affect people's sleep. [0003] The compressor is the main source of noise generated by the outdoor unit of the air conditioner. In order to reduce the noise radiated from the compressor, a common measure is to wrap the compressor around the co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): F24F13/24F04B39/00
CPCF04B39/0027F24F13/24F24F2013/242
Inventor 杨俊涛高旭吴俊鸿王现林赖孝成程诗高智强夏增强刘江驰吴梦芸
Owner GREE ELECTRIC APPLIANCES INC
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