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Filter with silencing function and air conditioner using such filter

A filter and function technology, applied in the field of air conditioners, can solve the problems of inability to eliminate refrigerant cavitation noise, inability to meet the miniaturization of air conditioners, and complex processing, so as to reduce airflow impact noise, improve comfort, and reduce cavitation noise. Effect

Inactive Publication Date: 2012-11-14
GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention combines the characteristics of the filter and the muffler, not only can play the role of the filter, but also can eliminate the impact noise of the air flow, but still cannot realize the function of eliminating the cavitation noise of the refrigerant, and has certain limitations
In addition, the processing of this invention is relatively complicated, and due to the existence of the perforated tube, its size is relatively large, which cannot meet the needs of miniaturization of existing air conditioners

Method used

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  • Filter with silencing function and air conditioner using such filter
  • Filter with silencing function and air conditioner using such filter
  • Filter with silencing function and air conditioner using such filter

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0024] see figure 2 , a filter with noise reduction function, comprising a shell 1, the shell is a hollow cylinder, both ends shrink inwardly to form an interface 1.3, the ratio of the inner diameter L1 of the shell to the inner diameter L0 of the interface is greater than 1.5. Protrusions 1.1 are provided in the middle of the inner side of the housing 1 . The silk screen layer 4 used for noise reduction is arranged between two layers of filter screens 3, and the filter screen and the screen layer 4 are fixed by clamps 2.1 to form a filter noise reduction layer. The filter sound-absorbing layer is fixed in the middle of the housing 1 through the bumps 1.1. The screen layer is made of SUS wire which has no chemical reaction with the refrigerant, and its thickness t is 0.5mm-20mm. The inner side of the interface 1.3 is provided with a positioning point 1.2, and the positioning point is used to ensure the depth and consistency of the intubation tube inserted into the filter. ...

no. 2 example

[0026] see image 3 , a filter with a sound-absorbing function, the filtering sound-absorbing layer composed of a wire mesh layer 4 and a filter net 3 is arranged at a position close to the interface 1.3 in the housing. Use the shoulder formed by the inward contraction of the shell 1 to limit one side of the filter sound-absorbing layer; the other side of the filter sound-absorbing layer is limited by the convex point 1.1 set on the inside of the shell 1, so that it is fixed on the shell in vivo. Compared with the first embodiment, this design reduces the number of bumps 1.1 and simplifies the production process. Other unmentioned parts are the same as the first embodiment.

no. 3 example

[0028] see Figure 4 , a filter with noise reduction function, two layers of screens 3 are provided with two layers of wire mesh layer 4, and each layer of filter screen 3 half-wraps the mesh layer 4 of its adjacent wire; between the two layers of wire mesh layers A fixing piece 2.2 is arranged between them, and each layer of silk screen 4 is fixed with the fixing piece 2.2 through the adjacent filter mesh 3 . The silk screen layer, the filter screen and the fixing piece are fixed in the middle of the housing through the bumps 1.1. Other unmentioned parts are the same as the first embodiment.

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Abstract

The invention discloses a filter with a silencing function. The filter comprises a shell, wherein the shell is hollow and cylindrical and the two ends of the shell shrink inwards to form ports; filter screens and a silencing silk screen layer are arranged in the shell; and the silk screen layer is fixedly arranged between two layers of filter screens, perforated plates or slit plates. The silk screen layer which is made by pressing SUS (Stainless Steel) wires is additionally arranged in the filter of the air conditioner. Since the silk screen layer consists of extremely fine wires, fine communicating gaps exist among the wires. When noise passes through the gaps of the silk screen, the noise is subjected to friction with the silk screen to be converted into heat energy to reduce a noise value. On the other hand, when two phases of refrigerants pass through the silk screen layer, the cavitation noise can be greatly reduced because of a cutting effect of the small gaps of the silk screen. Thus, the high frequency noise such as air flow impact noise and cavitation noise can also be greatly reduced apart from that the filtering capacity of the filter is further improved, so that the comfort of the air conditioner is greatly improved.

Description

technical field [0001] The invention relates to a filter with sound-absorbing function and an air conditioner using the filter. Background technique [0002] The functions of the traditional filter and the muffler are obviously different. The filter often has only one layer of filter screen. The main purpose is to filter impurities such as welding chips in the air conditioning system, and prevent impurities from entering the compressor, electronic expansion valve, capillary and other throttling components, causing system damage. Blockage or damaged compressor. Most of the existing mufflers are expansion-type resistant mufflers, and the noise reduction in some frequency bands can be realized by changing the pipe diameter, and the muffler frequency band is relatively narrow. The noise in the air-conditioning system is mainly refrigerant turbulence noise, cavitation noise and pressure pulsation noise, which belong to high-frequency noise in a wide frequency band. Using a conve...

Claims

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Application Information

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IPC IPC(8): F24F13/28F24F13/24
Inventor 吴彦东邓建云伍光辉郭军卢细杰
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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