CN104422111A

CN104422111A - Silencing structure of air conditioner and air conditioner

Info

Publication number: CN104422111A
Application number: CN201310413729.7A
Authority: CN
Inventors: 程方慰; 夏飞; 张燕清; 何伟光; 何相萍; 迟亚玲; 范恒毓; 冯琴香; 赵晓静; 陈业成; 高棋彬
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2013-09-11
Filing date: 2013-09-11
Publication date: 2015-03-18

Abstract

The invention provides a silencing structure of an air conditioner, which is used at an air outlet of the air conditioner and comprises a silencing plate, wherein the silencing plate is wavy; the number of the sound-absorbing plates is more than two, the sound-absorbing plates are transversely arranged, and a channel is formed between every two adjacent sound-absorbing plates. And also relates to an air conditioner. According to the silencing structure of the air conditioner and the air conditioner, the airflow area is divided into a plurality of small areas through the wave-like silencing plate which is transversely arranged, the silencing plate prevents the noise from being directly transmitted, the noise is reflected for multiple times in the air outlet channel, and the purpose of reducing the noise is achieved.

Description

Silencing structure of air conditioner and air conditioner

Technical Field

The invention relates to the field of refrigeration and ventilation, in particular to a silencing structure of an air conditioner and the air conditioner.

Background

The amortization structure that current fan coil air conditioner adopted generally installs on the return air inlet, and the longitudinal section shape of amortization structure entry end and exit end is the horn mouth form, and the longitudinal section of entry end and exit end is two horn mouths that carry on the back mutually, transversely is provided with cylindrical part in the horn mouth form exit end for change air-out wind direction, and it is limited to fall the noise of this kind of amortization structure, and the air-out noise is higher.

Disclosure of Invention

In view of the current state of the art, it is an object of the present invention to provide a noise reduction structure for an air conditioner and an air conditioner, which can reduce noise by dividing an air flow region into a plurality of small regions and preventing direct transmission of noise. In order to achieve the purpose, the technical scheme of the invention is as follows:

the silencing structure of the air conditioner is used at an air outlet of the air conditioner and comprises more than two silencing plates, wherein the two or more silencing plates are transversely arranged, and two adjacent silencing plates are vertically arranged, so that a channel is formed between the two adjacent silencing plates;

the sound-absorbing plate is of a multi-fold structure, and the longitudinal section of the sound-absorbing plate is wave-like.

Preferably, the sound-absorbing panel of the multi-fold structure has a longitudinal section length of one fold in the middle part which is greater than the longitudinal section lengths of the folds on the two sides.

Preferably, one folding of one end of the sound-absorbing plate on the outermost side and one folding of the other end of the sound-absorbing plate on the outermost side are both horizontally arranged.

Preferably, two adjacent sound-absorbing plates partially overlap in the horizontal direction, so that the horizontal line of sight is blocked in the passage.

Preferably, two adjacent sound-absorbing plates are arranged in parallel.

Preferably, the sound-absorbing plate is provided with a sound-absorbing material.

Preferably, the longitudinal section of the sound attenuation plate is of a symmetrical structure.

Preferably, the sound attenuating structure further comprises an end plate;

the number of the end plates is two, the end plates are respectively a first end plate and a second end plate, one end of the sound-absorbing plate is correspondingly arranged on the first end plate, and the other end of the sound-absorbing plate is correspondingly arranged on the second end plate.

Still relate to an air conditioner, including casing, fan subassembly, heat exchanger and amortization structure, the casing is used for holding fan subassembly, heat exchanger and amortization structure, the amortization structure is above-mentioned any technical scheme's amortization structure.

Preferably, the inner wall of the shell is provided with a sound attenuation material.

The invention has the beneficial effects that:

according to the silencing structure of the air conditioner and the air conditioner, the airflow area is divided into a plurality of small areas through the wave-like silencing plates arranged transversely, noise is reflected for multiple times in the air outlet channel between the silencing plates, and the silencing plates prevent the noise from being directly emitted, so that the purpose of reducing the noise is achieved.

Drawings

FIG. 1 is a schematic perspective view of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic top view of the air conditioner of FIG. 1;

FIG. 3 is a perspective view of a silencer structure of the air conditioner shown in FIG. 1;

FIG. 4 is a schematic front view of the sound attenuating structure of FIG. 3;

FIG. 5 is a schematic cross-sectional view taken along line A-A of the sound attenuating structure of FIG. 4;

FIG. 6 is a schematic view of the muffling structure of FIG. 5;

FIG. 7 is an exploded view of the sound attenuating structure of FIG. 3;

wherein,

1, a shell; 2, a silencing structure; 21 a sound-deadening panel; 22 a first end plate; 23 a second end plate;

24 a sound attenuating material; 25, screws; 26 channels; 3, a heat exchanger; 4 a fan assembly.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the noise reduction structure of the air conditioner and the air conditioner of the present invention are further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 7, an embodiment of an air conditioner of the present invention includes a housing 1, a fan assembly 4, a heat exchanger 3, and a silencing structure 2, where the housing 1 is used to accommodate the fan assembly 4, the heat exchanger 3, and the silencing structure 2 is disposed at an air outlet of the air conditioner, and an arrow in fig. 1 indicates a flow direction of an air flow, and the air flow enters the housing 1 from the fan assembly 4 and exits the housing 1 from the silencing structure 2.

The silencing structure 2 comprises a silencing plate 21, and the silencing plate 21 is of a multi-fold structure, so that the longitudinal section of the silencing plate 21 is of a wave shape; the number of the sound-absorbing plates 21 is more than two, the sound-absorbing plates 21 are arranged transversely, and two adjacent sound-absorbing plates 21 are arranged up and down, so that a channel 26 is formed between the two adjacent sound-absorbing plates 21. Preferably, the sound-deadening plate 21 is made of a metal material, and the sound-deadening plate 21 is preferably a sheet metal member. The wave-like sound-absorbing plates 21 are transversely arranged to divide the air flow area into a plurality of small areas, so that noise is reflected for a plurality of times in the channels 26 between the sound-absorbing plates 21, the sound-absorbing plates 21 prevent the direct transmission of the noise, and the purpose of reducing the noise is achieved.

Preferably, as an embodiment, the acoustic panel 21 has a multi-fold structure, wherein the longitudinal section length of one fold in the middle is greater than the longitudinal section length of each fold on both sides. Preferably, one outermost fold of one end of the sound-deadening plate 21 and the other outermost fold of the other end are both horizontally disposed. In fig. 5 and 6, the sound-absorbing panel 21 is 5-fold, wherein the middle portion is folded to form the middle fold, although the number of folds of the sound-absorbing panel 21 may be even. The length of the longitudinal section of one fold in the middle of the silencing plate 21 is greater than the length of the longitudinal sections of the two folds on the two sides, so that the refraction times of noise in the channel 26 are increased, and the noise is reduced; one end of the silencing plate 21 and the other end of the silencing plate are arranged on the outermost side in an even horizontal mode, installation is convenient to achieve, and the air flow entering and exiting the channel 26 is guided.

Preferably, as an alternative, two adjacent acoustic panels 21 partially overlap in the horizontal direction, so that the line of sight in the horizontal direction is blocked in the channel 26. As shown in fig. 6, the two sound-absorbing panels 21 adjacent to each other partially overlap each other in the horizontal direction between the dotted line portions, that is, when viewed horizontally inward from the outside of the air conditioner through the outlet of the sound-absorbing structure, other parts inside the air conditioner unit except for the sound-absorbing structure itself cannot be seen, the two adjacent sound-absorbing panels 21 partially overlap each other in the horizontal direction, and noise cannot be emitted directly through the duct 26 but is emitted from the duct 26 after being refracted many times, so that the noise is attenuated.

The sound-deadening plate 21 is provided with a sound-deadening material 24, the sound-deadening material 24 is made of sponge, soundproof cotton or other materials with sound-deadening effect, and preferably, the inner wall of the casing 1 is provided with the sound-deadening material 24. When the airflow flows through the silencing structure, the silencing material can eliminate the noise of a part of the airflow, so that the aim of reducing the noise is fulfilled.

Preferably, the silencing structure 2 further comprises two end plates, namely a first end plate 22 and a second end plate 23, one end of the silencing plate 21 is correspondingly arranged on the first end plate 22, and the other end is arranged on the second end plate 23. The silencing plate 21 is fixed on the end plate through screws 25, and is convenient to disassemble and assemble.

Preferably, as an implementation mode, the longitudinal section of the sound-absorbing plate 21 is a symmetrical structure, and the cross section of the sound-absorbing plate 21 is symmetrical relative to the center of symmetry at the middle part thereof. Preferably, two adjacent sound-deadening plates 21 are disposed in parallel.

A plurality of transversely arranged sound-absorbing plates 21 are adopted to divide an air flow area into a plurality of small areas, and the sound-absorbing plates 21 are made into wave-like shapes, so that an air outlet flow field is improved, and noise is prevented from being directly transmitted. The transversely arranged acoustical panels divide the airflow area into a plurality of channels 26, when noise passes through the channels 26, part of the noise is reflected for multiple times in the air conditioner unit and cannot be transmitted out, and the noise value is greatly reduced after the part which can be transmitted out is refracted and reflected for multiple times through the channels 26.

The results of the comparative tests before and after the addition of the sound-attenuating structure 2 are shown in the following table:

as can be seen from the above table, after the silencing structure 2 is installed, under the same air volume, the noise of the air conditioner unit can be reduced by 5-7dB (A), and the noise reduction effect is obvious.

According to the silencing structure of the air conditioner and the air conditioner, the air flow region is divided into the plurality of small regions through the wave-like silencing plate which is transversely arranged, the air outlet flow field is improved, noise is prevented from being directly transmitted, the silencing materials are arranged on the silencing plate and the shell, the noise is reflected for multiple times in the air outlet channel between the silencing materials, the air flow noise is absorbed through the silencing materials, direct transmission of the noise is prevented, and the purpose of reducing the noise is achieved.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a amortization structure of air conditioner, is used in the air outlet department of air conditioner which characterized in that:

the acoustic panel comprises more than two acoustic panels, wherein the number of the acoustic panels is more than two, the two acoustic panels are transversely arranged, and the two adjacent acoustic panels are vertically arranged, so that a channel is formed between the two adjacent acoustic panels;

2. The silencing structure of an air conditioner according to claim 1, wherein:

the silencing plate with the multi-fold structure has the advantages that the length of a longitudinal section folded in the middle is larger than that of longitudinal sections folded on two sides of the silencing plate.

3. The silencing structure of an air conditioner according to claim 2, wherein:

and one outermost fold of one end of the silencing plate and the outermost fold of the other end of the silencing plate are arranged horizontally.

4. The silencing structure of an air conditioner according to claim 1, wherein:

two adjacent sound-absorbing plates partially overlap in the horizontal direction, so that the sight line in the horizontal direction is blocked in the channel.

5. The silencing structure of an air conditioner according to claim 4, wherein:

two adjacent silencing plates are arranged in parallel.

6. A noise cancellation structure of an air conditioner according to any one of claims 1 to 5, wherein:

and the silencing plate is provided with a silencing material.

7. The silencing structure of an air conditioner according to claim 6, wherein:

the longitudinal section of the silencing plate is of a symmetrical structure.

8. The silencing structure of an air conditioner according to claim 6, wherein:

also includes an end plate;

9. An air conditioner, includes casing, fan subassembly, heat exchanger and amortization structure, the casing is used for holding fan subassembly, heat exchanger and amortization structure, its characterized in that:

the silencing structure of the air conditioner according to any one of claims 1 to 8.

10. The air conditioner according to claim 9, wherein:

and the inner wall of the shell is provided with a sound attenuation material.