CN219103150U

CN219103150U - Silencing air return box of air conditioner

Info

Publication number: CN219103150U
Application number: CN202222567261.4U
Authority: CN
Inventors: 李炎波; 薛健; 陆玲; 马静远; 刘益姣
Original assignee: Gebr Trox 47506 Neukirchen Vluyn De GmbH
Current assignee: Gebr Trox 47506 Neukirchen Vluyn De GmbH
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-05-30
Anticipated expiration: 2032-09-27

Abstract

The application relates to an air conditioner amortization returns bellows, include: the box body is provided with an air inlet at one side and is communicated with an air inlet pipe; the silencer comprises a frame connected to the middle of the box body through screws, a silencing layer embedded in the frame and sealing plates respectively screwed on two sides of the length direction of the frame, wherein the plane of the frame is parallel to the length direction of the box body, and the outer side wall of the frame is in fit contact with the inner side wall of the box body. The application has the advantages of better mute effect and strong applicability.

Description

Silencing air return box of air conditioner

Technical Field

The application relates to the technical field of air conditioner air outlet structures, in particular to an air conditioner silencing return air box.

Background

The return air box is an end structure in an air conditioning system, and cooled cool air finally flows into a room through an outlet of the return air box. In some cases, it is necessary to ensure a silent state in the room for a long period of time, so that the wind is required to be blown out from the return air box at a low speed, and the decibels of the sound need to be limited to a certain parameter.

At present, most air conditioners are in a working state to directly ventilate the air return box, the wind speed is rough to treat, the corresponding requirements are difficult to reach under the condition that the mute effect of the air return box is quite large, and the air return box is difficult to adapt to the installation and use requirements of different occasions.

Disclosure of Invention

In order to solve the technical problem, the application provides an air conditioner amortization return air box, and it has silence effect preferred, advantage that the suitability is strong.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

an air conditioning silencing return air box, comprising:

the box body is provided with an air inlet at one side and is communicated with an air inlet pipe;

the silencing structure comprises a frame connected with the middle part of the box body by screws, a silencing layer embedded in the frame and sealing plates respectively screwed on two sides of the length direction of the frame,

the plane where the frame is located is parallel to the length direction of the box body, and the outer side wall of the frame is in fit contact with the inner side wall of the box body.

According to the technical scheme, the processed wind enters the box body through the air inlet, on one hand, two sides of the length direction of the frame and the inner side of the box body form two relatively independent cavities, so that the integrally-entered wind can be scattered, the wind enters the cavities to flow irregularly, and the wind speed and wind noise are primarily reduced; the second wind contacts with the silencing layer when flowing in the cavity, so that the generation of sound waves is further reduced, the sound decibels are reduced, and the silencing effect is improved; finally, the sealing plate is designed into a detachable structure, and the silencing layers made of different materials can be replaced according to different occasions, so that the applicability of the sealing plate is improved.

As one of the preferred schemes of the application, the inner side wall of the frame is vertically provided with folded edges along two sides of the circumference of the frame, and a clamping groove for clamping and embedding the noise reduction layer is formed between the folded edges on two sides.

According to the technical scheme, the silencing layer is directly clamped in the clamping groove when the silencing layer is fixed, and the sealing plate can be optionally not used for fixation, so that the use convenience is improved.

As one preferable scheme of the application, the two sides of the inner side wall of the box body, which are positioned in the length direction of the frame, are provided with silencing cotton.

As one preferable scheme of the application, the length of the top surface part of the box body is gradually and downwards inclined along the air inlet direction.

After the wind enters the box body from the wind inlet pipe, the wind is guided by the inclined part at the top of the box body, so that the wind gradually flows along the direction of the inclined part, the situation that the wind speed is too fast and directly collides with the inner side wall of the box body to cause larger sound is avoided, and the mute effect is improved.

As one of the preferred schemes of this application, the box inner side wall is equipped with the bearing flange along self circumference level, the dismantlement of box top is equipped with the top cap, the top cap inlay card is on the bearing flange.

According to the technical scheme, the top cover is detachably arranged in the box body, so that subsequent maintenance operation is convenient.

As one preferable scheme of the application, the coverage area of the air inlet is 1/3 of the cross-sectional area of the box body.

According to the technical scheme, the area of the air inlet is far smaller than the cross-sectional area of the box body, wind suddenly enters into a channel with a large pipe diameter from a channel with a small pipe diameter, the wind speed suddenly drops, so that the wind flow speed is reduced, and the characteristic of resistance silencing is utilized for silencing.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the frame, the sealing plate and the silencing layer arranged in the frame are arranged in the middle of the box body, and the silencing cotton is attached to the inner side wall of the box body, so that the impact of the wind in the box body can be effectively reduced while the entered wind is scattered, the wind speed is reduced, and the effect of reducing the wind noise is achieved;

2. can dismantle through amortization layer and top cap, realize maintaining convenient effect, the amortization layer is also removable to adapt to the user demand of different scenes, improve the suitability.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of a bellows;

FIG. 2 is an exploded view mainly used to illustrate the cap removal structure;

FIG. 3 is a schematic view mainly showing the structure of the frame position and the connection relation;

fig. 4 is an exploded view mainly for showing a sound deadening structure.

Reference numerals: 1. a case; 2. an air inlet; 3. an air inlet pipe; 41. a frame; 411. folding edges; 42. a sound deadening layer; 43. a sealing plate; 5. a clamping groove; 6. silencing cotton; 7. a transition section; 8. a support flange; 9. and a top cover.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

Referring to fig. 1 and fig. 2, for the air conditioner amortization return air box that this application embodiment discloses, including rectangular box 1, open at box 1 length direction's one end has air intake 2 and communicates there is air-supply line 3, wherein the area of air-supply line 3 is set to 1/3 of box 1 cross-sectional area, when making wind enter into box 1 from air-supply line 3, make wind speed effectively decline by the characteristic of resistance amortization, reduce wind noise simultaneously, two inside walls subsides at box 1 length direction are attached with amortization cotton 6, cooperation amortization layer 42 can utilize the characteristic of resistance amortization to further absorb wind noise, improve the silence effect. The resistive silencing and the resistive silencing are combined with each other, so that the silencing effect can be effectively improved. And be equipped with bearing flange 8 at box 1 inside wall along self circumference level, the dismantlement of box 1 top is equipped with top cap 9, and top cap 9 inlay card is on bearing flange 8 to make top cap 9 detachable, be convenient for maintain the operation.

Referring to fig. 2 and 3, a part of the top of the box 1 is gradually inclined downwards along the air inlet direction, so that the air in the air supply pipe 3 enters the box 1 and is guided to flow, and the air flows out of the air outlet of the box 1 more smoothly.

Referring to fig. 3 and 4, a silencing structure is arranged at the middle part of the box body 1 in the length direction, the silencing structure comprises a frame 41 connected to the middle part of the box body 1 by screws, a silencing layer 42 embedded in the frame 41 and sealing plates 43 respectively screwed on two sides of the frame 41 in the length direction, wherein the sealing plates 43 are hollow, so that the sound is absorbed and the flow of wind speed is reduced, the outer side wall of the frame 41 is in contact with the inner side wall of the box body 1, the frame 41 breaks up the integrally entered wind, the wind enters two relatively independent cavities formed by two sides of the frame 41 in the length direction and the inner side of the box body 1, the wind irregularly flows in the cavities, and the wind speed and the sound of the wind are primarily reduced; the detachable silencing structure design can also facilitate the replacement of the silencing layers 42 made of different materials, thereby improving the applicability; the inside wall of the frame 41 is vertically provided with folded edges 411 along two sides of the circumference of the frame 41, and a clamping groove 5 for clamping the noise reduction layer 42 is formed between the folded edges 411 on two sides of the frame 41, so that the stability of the installation and the convenience of the disassembly and assembly of the noise reduction layer 42 are ensured.

The implementation principle of the silencing return air box of the air conditioner is as follows: the processed wind enters the box body 1 through the air inlet 2, on one hand, the frame 41 breaks up the integrally-entered wind, the wind enters two relatively independent cavities formed by two sides of the length direction of the frame 41 and the inner side of the box body 1, the wind irregularly flows in the cavities, and the wind speed and the wind sound are primarily reduced; moreover, when wind flows in the cavity, the wind contacts with the silencing layer 42, so that the generation of sound waves is further reduced, the sound decibels are reduced, the silencing effect is improved, the sealing plate 43 is designed to be detachable, and the silencing layer 42 made of different materials can be replaced according to different occasions, so that the applicability of the sealing plate is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. An air conditioner amortization return bellows, characterized by comprising:

the air inlet (2) is formed in one side of the box body (1) and is communicated with the air inlet pipe (3);

the silencing structure is arranged in the box body (1) and comprises a frame (41) connected to the middle of the box body (1) through screws, a silencing layer (42) embedded in the frame (41) and sealing plates (43) respectively screwed on two sides of the frame (41) in the length direction;

the plane where the frame (41) is located is parallel to the length direction of the box body (1), and the outer side wall of the frame (41) is in contact with the inner side wall of the box body (1).

2. The silencing return air box of claim 1, wherein: the inner side wall of the frame (41) is vertically provided with folded edges (411) along two sides of the circumference of the frame, and clamping grooves (5) for clamping and embedding the noise reduction layer (42) are formed between the folded edges (411) on two sides.

3. The silencing return air box of claim 1, wherein: the inner side wall of the box body (1) is provided with silencing cotton (6) at two sides of the length direction of the frame (41).

4. The silencing return air box of claim 1, wherein: the length of the top surface part of the box body (1) is gradually and downwards inclined along the air inlet direction.

5. The silencing return air box of claim 1, wherein: the utility model discloses a box, including box (1), support flange (8) are equipped with along self circumference level to box (1) inside wall, box (1) top dismantles and is equipped with top cap (9), top cap (9) inlay card is on support flange (8).

6. The silencing return air box of claim 1, wherein: the coverage area of the air inlet (2) is 1/3 of the cross-sectional area of the box body (1).