CN218895522U - Central air conditioner fan coil silencer - Google Patents

Abstract

The utility model discloses a central air-conditioning fan coil muffler, which comprises a fan coil body, a connecting pipe and an air duct pipe, one end of the connecting pipe is fixedly connected with the fan coil body, and the connecting pipe The other end is fixedly connected to one end of the air duct pipe, and the air duct pipe includes a shell, a first sound-absorbing cotton, a damping plate, a waterproof fiber cloth, a first perforated mesh plate, a noise reduction plate, a sound attenuation plate, the first One side of the sound-absorbing cotton is attached to the inner wall of the shell, the other side of the first sound-absorbing cotton is provided with a damping plate, and the side of the damping plate away from the first sound-absorbing cotton is provided with a waterproof fiber cloth, and the waterproof A first perforated mesh plate is arranged on the side of the fiber cloth away from the damping plate, the noise reduction plate is arranged inside the air duct pipe and is close to the connecting pipe end, and the sound-absorbing plate is arranged inside the air duct pipe and is far away from the connecting pipe end. pipe end.

Description

Central air-conditioning fan coil muffler

technical field

The utility model relates to the technical field of silencers, in particular to a central air-conditioning fan coil silencer.

Background technique

The fan coil unit is referred to as the fan coil unit. It is one of the terminal devices of the air conditioning system composed of a small fan, a motor and a coil (air heat exchanger). Heat exchange, so that the air is cooled, dehumidified or heated to adjust the indoor air parameters, it is a common cooling and heating terminal device.

The muffler is a device that prevents sound transmission and allows airflow to pass through, and is an important measure to eliminate aerodynamic noise. The muffler is a noise reduction device installed on the airflow channel of the aerodynamic equipment or in the intake and exhaust system.

The existing central air-conditioning fan coil cooling and heating basically has no air duct, and the wind comes out and blows on people in an instant, which affects people's health. Moreover, when the fan is in use, the noise caused by the fan coil and the impact of the wind disturbs people. rest and life.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a central air-conditioning fan coil muffler, so that when the air flow passes through the air duct, the speed of the blowing can be slowed down, the noise can be effectively reduced and silenced, and the generation of noise and noise can be reduced. Emissions ensure people's normal rest and life.

In order to solve the above technical problems, the utility model provides the following technical solutions: a central air-conditioning fan coil muffler, including the fan coil body, and also includes a connecting pipe, an air duct pipe, one end of the connecting pipe and the fan coil unit The body is fixedly connected, and the other end of the connecting pipe is fixedly connected with one end of the air duct pipe;

The air duct pipe includes a shell, a first sound-absorbing cotton, a damping plate, a waterproof fiber cloth, a first perforated mesh plate, a noise-reducing plate, and a sound-absorbing plate, and one side of the first sound-absorbing cotton is attached to the inner wall of the shell , the other side of the first sound-absorbing cotton is provided with a damping plate, the side of the damping plate away from the first sound-absorbing cotton is provided with a waterproof fiber cloth, and the waterproof fiber cloth is provided with a first perforation on the side away from the damping plate A net plate, the noise reduction plate is arranged inside the air duct pipe and close to the connecting pipe end, and the sound-absorbing plate is arranged inside the air duct pipe and away from the connecting pipe end.

Preferably, the noise reduction plate includes a first layer and a second layer, and through holes are opened in the first layer and the second layer, and the hole diameter of the second layer is larger than the hole diameter of the first layer.

Preferably, the sound-absorbing board includes a fixed frame, a second sound-absorbing cotton, and a second perforated mesh panel, the inside of the fixed frame is provided with a second sound-absorbing cotton, and the upper and lower ends of the fixed frame are fixedly connected with second perforated holes. Stencil.

Preferably, the number of the sound-absorbing plates is three, and the three sound-absorbing plates are arranged in parallel inside the air duct pipe.

Preferably, the noise reduction plate is fixedly connected to the opposite surface of the first perforated mesh plate.

Preferably, the two side surfaces of the sound-absorbing plate are fixedly connected to the inner side wall of the first perforated mesh panel.

Preferably, the end of the air duct pipe away from the main body of the fan coil unit is fixedly connected with an air outlet.

Compared with the prior art, the beneficial effects that the utility model can achieve are:

By setting the noise reduction board, the hole diameter of the second layer of holes is larger than the hole diameter of the first layer of holes. When the air flow passes through, the blowing speed can be slowed down and the noise can be reduced. Reduce noise generation and emission, and ensure people's normal rest life.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a structural schematic diagram of the air duct pipe of the present utility model;

Figure 3 is a schematic diagram of the structure of the air duct pipe A-A of the utility model;

Fig. 4 is a structural schematic diagram of the air duct pipe BB of the present invention;

Fig. 5 is a structural schematic diagram of the utility model sound-absorbing plate;

Among them: 1. Fan coil body; 2. Connecting pipe; 3. Air duct pipe; 4. Shell; 5. The first sound-absorbing cotton; 6. Damping plate; 7. Waterproof fiber cloth; 8. The first perforated mesh panel; 9. Noise reduction board; 10. Noise reduction board; 11. First layer; 12. Second layer; 13. Fixed frame; 14. Second sound-absorbing cotton; 15. Second perforated mesh panel; 16. Air outlet.

Detailed ways

In order to make the technical means, creative features, goals and effects of the utility model realized easy to understand, the utility model will be further elaborated below in conjunction with specific examples, but the following examples are only preferred embodiments of the utility model, not all . Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present utility model. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial sources.

Example:

As shown in Figures 1-5, the utility model provides a central air-conditioning fan coil muffler, which includes a fan coil body 1, a connecting pipe 2, and an air duct pipe 3. One end of the connecting pipe 2 is connected to the fan coil. The coil body 1 is fixedly connected, and the other end of the connecting pipe 2 is fixedly connected with one end of the air duct pipe 3;

The air duct pipe 3 includes a shell 4, a first sound-absorbing cotton 5, a damping plate 6, a waterproof fiber cloth 7, a first perforated mesh plate 8, a noise-reducing plate 9, and a sound-absorbing plate 10. One of the first sound-absorbing cotton 5 The other side of the first sound-absorbing cotton 5 is provided with a damping plate 6, and the side of the damping plate 6 away from the first sound-absorbing cotton 5 is provided with a waterproof fiber cloth 7, so The waterproof fiber cloth 7 is provided with a first perforated screen 8 on the side away from the damping plate 6, the noise reduction plate 9 is set inside the air duct pipe 3 and close to the end of the connecting pipe 2, and the sound-absorbing plate 10 is set on the The air duct pipe 3 is inside and away from the end of the connecting pipe 2 .

As shown in Figures 1, 3, and 4, this embodiment also discloses that the noise reduction plate 9 includes a first layer 11 and a second layer 12, and through holes are opened on the first layer 11 and the second layer 12 , the pore diameter of the second layer 12 is larger than the pore diameter of the first layer 11 .

As shown in Figures 4 and 5, this embodiment also discloses that the sound-absorbing panel 10 includes a fixed frame 13, a second sound-absorbing cotton 14, and a second perforated mesh panel 15, and the inside of the fixed frame 13 is provided with a second sound-absorbing cotton 14. The upper and lower ends of the fixed frame 13 are fixedly connected with a second perforated mesh plate 15 .

As shown in FIG. 4 , this embodiment also discloses that the number of the sound-absorbing plates 10 is three, and the three sound-absorbing plates 10 are arranged in parallel inside the air duct pipe 3 .

As shown in FIG. 3 , this embodiment also discloses that the noise reduction plate 9 is fixedly connected to the opposite surface of the first perforated mesh plate 8 .

As shown in FIG. 4 , this embodiment also discloses that the two side surfaces of the sound-absorbing plate 10 are fixedly connected with the inner wall of the first perforated mesh panel 8 .

As shown in FIG. 1 , this embodiment also discloses that an air outlet 16 is fixedly connected to the end of the air duct 3 away from the fan coil body 1 .

By setting the noise reduction plate 9, the aperture of the second layer 12 holes is greater than the aperture of the first layer 11 holes. When the air flow passes through, the blowing speed can be slowed down, and the noise can be reduced. By setting the noise reduction plate 10, the air flow after the noise reduction can be reduced. Further noise reduction, thereby reducing noise generation and emission, ensures people's normal rest life.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A central air-conditioning fan coil muffler, comprising a fan coil body (1), characterized in that it also includes a connecting pipe (2), an air duct pipe (3), and one end of the connecting pipe (2) is connected to the The fan coil unit body (1) is fixedly connected, and the other end of the connecting pipe (2) is fixedly connected with one end of the air duct pipe (3); The air duct pipe (3) includes a shell (4), a first sound-absorbing cotton (5), a damping plate (6), a waterproof fiber cloth (7), a first perforated mesh plate (8), and a noise reduction plate (9) . A sound-absorbing plate (10), one side of the first sound-absorbing cotton (5) is attached to the inner wall of the housing (4), and the other side of the first sound-absorbing cotton (5) is provided with a damping plate (6 ), the side of the damping plate (6) away from the first sound-absorbing cotton (5) is provided with a waterproof fiber cloth (7), and the side of the waterproof fiber cloth (7) away from the side of the damping plate (6) is provided with a first A perforated mesh plate (8), the noise reduction plate (9) is arranged inside the air duct pipe (3) and close to the end of the connecting pipe (2), and the sound-absorbing plate (10) is arranged on the air duct pipe ( 3) Inside and away from the end of the connecting pipe (2). 2. The central air-conditioning fan coil muffler according to claim 1, characterized in that: the noise reduction plate (9) comprises a first layer (11) and a second layer (12), and the first layer ( 11) and the second layer (12) are provided with through holes, and the aperture of the second layer (12) is larger than the aperture of the first layer (11). 3. The central air-conditioning fan coil muffler according to claim 1, characterized in that: the muffler plate (10) comprises a fixed frame (13), a second sound-absorbing cotton (14), a second perforated mesh plate (15 ), the inside of the fixed frame (13) is provided with a second sound-absorbing cotton (14), and the upper and lower ends of the fixed frame (13) are fixedly connected with a second perforated mesh panel (15). 4. The central air-conditioning fan coil muffler according to claim 1, characterized in that: the number of the sound-absorbing plates (10) is three, and the three sound-absorbing plates (10) are arranged in parallel on the air duct tube (3) inside. 5. The central air-conditioning fan coil muffler according to claim 1, characterized in that: the noise reduction plate (9) is fixedly connected to the opposite surface of the first perforated mesh plate (8). 6. The central air-conditioning fan coil muffler according to claim 1, characterized in that: the two sides of the sound-absorbing plate (10) are fixedly connected to the inner side wall of the first perforated mesh plate (8). 7. The central air-conditioning fan coil muffler according to claim 1, characterized in that: the end of the air duct pipe (3) away from the fan coil body (1) is fixedly connected with an air outlet (16).

Images