Silencer for air handling unit

Abstract

The utility model discloses a silencer for an air handling unit, which relates to the technical field of air handling units and comprises an air inlet, a silencing component is fixedly connected to the rear of the air inlet, an air outlet is fixedly connected to the rear of the silencing component, the silencing component comprises a circulation box, and the front of the circulation box is fixedly connected with the rear of the air inlet. According to the silencer for the air conditioning cabinet, through the glass wool fixedly connected to the inner wall of the circulation box body and the sound insulation holes formed in the surface of the glass wool, the glass wool is used for replacing a porous material, so that the silencer for the air conditioning cabinet has good sound absorption performance, can effectively absorb sound and reduce noise transmission, but has high fireproof performance and excellent incombustibility; the circulation box has the advantages that the safety of a building is improved, the circulation box is resistant to chemical corrosion and suitable for various severe environments, the sound insulation holes play a role in sound insulation and noise reduction, and the polyester fibers fixedly connected with the inner wall of the circulation box body are combined with the sound insulation foam, so that sound insulation is enhanced, and outward transmission is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner box technical field especially relates to a silencer for air conditioner box. BACKGROUND

[0002] Modern air conditioning systems produce certain noise when running, and this noise mainly comes from the fan operation of the air conditioner box, airflow through the pipeline and the vibration of other mechanical parts. Excessive noise not only affects the comfort of the indoor environment, but also may have a negative impact on human hearing and health. A silencer mainly reduces noise by controlling and reducing the propagation of sound waves. It is usually designed to be installed at the air inlet or air outlet of the air conditioning system to absorb and attenuate noise. The silencer usually contains sound-absorbing materials such as glass wool or rock wool, which can effectively reduce the reflection and transmission of sound waves. With the development of technology, modern silencers have many improvements in materials and design. The use of more efficient sound-absorbing materials and more optimized structural design can better meet the requirements of different environments and needs. The silencer for air conditioner box is an effective device to reduce noise and improve comfort, which is of great significance to improve the overall performance and user experience of air conditioning systems.

[0003] For example, the patent number CN105235610B discloses an air conditioner box silencer and an air conditioner box. The air conditioner box silencer includes a shell and a grating structure. The shell is arranged on the air conditioner box flow channel. The shell is a groove-shaped structure, and the opening face of the shell faces the air conditioner box flow channel. The grating structure is arranged on the opening face of the shell and forms a cavity with diffraction slits together with the shell. The air conditioner box silencer and the air conditioner box of the present invention set the shell and the grating structure in the concentrated area of a certain frequency sound wave. The grating structure is arranged on the opening face of the shell and forms a cavity with diffraction slits together with the shell. The sound wave of this frequency is diffracted through the diffraction slits and enters the cavity, where the sound is attenuated, achieving the effect of reducing the noise of the air conditioner box.

[0004] The existing silencer for air conditioner box has the following problems:

[0005] The existing silencer for air conditioner box has the following problems: INVENTION CONTENTS

[0006] The utility model provides a silencer for air conditioner box to solve the problems raised in the background.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme:

[0008] The utility model provides an air conditioner box sound damper, including air inlet, the rear surface of air inlet is fixedly connected with sound damper subassembly, the rear surface of sound damper subassembly is fixedly connected with air outlet.

[0009] Preferably: the sound damper subassembly includes the flow circulation box, the front of the flow circulation box is fixedly connected with the rear of the air inlet, and the rear of the flow circulation box is fixedly connected with the front of the air outlet.

[0010] Preferably: the inner cavity of the flow circulation box is fixedly connected with a plurality of speed reduction frames around, and the speed reduction frames are conical square frames, and the outer surfaces of the speed reduction frames are provided with drainage grooves.

[0011] Preferably: the inner wall of the flow circulation box is fixedly connected with a porous plate layer, and the porous plate layer is arranged in a plurality of circular holes in a ring.

[0012] Preferably: the inner wall of the flow circulation box is fixedly connected with glass wool in the middle, a plurality of sound insulation holes are formed in the inner wall of the flow circulation box, and the sound insulation holes are evenly distributed on the surface of the glass wool.

[0013] Preferably: the inner wall of the flow circulation box is fixedly connected with polyester fiber, and the polyester fiber is located at the peripheral position of the glass wool, the inner wall of the flow circulation box is fixedly connected with sound insulation foam, and the sound insulation foam is located at the inner side position of the glass wool.

[0014] Thanks to the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] 1. The sound damper for an air conditioner box provided by the utility model utilizes glass wool fixedly connected with the inner wall of the flow circulation box and sound insulation holes formed on the surface of the glass wool to replace porous materials, has good sound absorption performance, can effectively absorb sound, reduces noise propagation, has high fire resistance, is non-combustible, improves the safety of buildings, is resistant to chemical corrosion, is suitable for various harsh environments, sound insulation holes play a role in sound insulation and noise reduction, the combination of polyester fiber fixedly connected with the inner wall of the flow circulation box and sound insulation foam plays a role in strengthening sound insulation and preventing external transmission.

[0016] 2. The sound damper for an air conditioner box provided by the utility model utilizes wind power to drive the inner cavity of the flow circulation box through the air inlet, utilizes a plurality of speed reduction frames fixedly connected with the inner cavity of the flow circulation box and drainage grooves formed on the surface of the speed reduction frames to play a role in drainage and reducing the flow rate of wind power, utilizes the plurality of speed reduction frames to drive air flow to circulate and return around the four corners of the speed reduction frames and the flow circulation box and then pass through the flow circulation box, plays a role in slowing down the wind speed and sound damping, and utilizes the porous plate layer fixedly connected with the surface of the inner wall of the flow circulation box to make wind power pass through the surface of the porous plate layer and be slowed down layer by layer, thereby improving the flow rate of wind and making it difficult to realize sound. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic view of the utility model;

[0018] Figure 2 It is the structure schematic view of the utility model's circulation box body section view;

[0019] Figure 3 It is the structure schematic view of the utility model's Figure 2 Amplification structure schematic view at A place in the middle;

[0020] Figure 4 It is the structure schematic view of the utility model's deceleration frame;

[0021] Figure 5 It is the structure schematic view of the utility model's porous plate layer.

[0022] In the drawing: 1, sound-absorbing assembly;11, circulation box body;12, deceleration frame;13, sound insulation hole;14, glass wool;15, polyester fiber;16, sound insulation foam;17, porous plate layer;18, drainage groove;2, air inlet;3, air outlet. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] As shown in Figure 1 , a sound absorber for air conditioner box, comprising air inlet 2, the rear of air inlet 2 is fixedly connected with sound-absorbing assembly 1, the rear of sound-absorbing assembly 1 is fixedly connected with air outlet 3.

[0025] Through sound-absorbing assembly 1, air inlet 2 and air outlet 3 are installed in predetermined position, and its function is played.

[0026] As shown in Figure 1 , Figure 2 , sound-absorbing assembly 1 comprises circulation box body 11, the front of circulation box body 11 is fixedly connected with the rear of air inlet 2, and the rear of circulation box body 11 is fixedly connected with the front of air outlet 3.

[0027] Through circulation box body 11, air inlet 2 and air outlet 3 are stably installed in predetermined position, and the connection effect of air inlet and air outlet is facilitated.

[0028] As shown in Figure 2 , Figure 4 , the inner cavity of circulation box body 11 is fixedly connected with a plurality of deceleration frames 12 around, and the plurality of deceleration frames 12 are conical square frames, and the outer surface of the plurality of deceleration frames 12 is provided with drainage groove 18.

[0029] The several speed reduction frames 12 fixedly connected through the inner cavity of the flow circulation box 11 and the drainage grooves 18 opened on the surface of the speed reduction frames 12 play the roles of guiding flow and reducing the flow speed of wind, and the several speed reduction frames 12 play the role of driving the airflow to circulate and return around the four corners of the speed reduction frames 12 and the flow circulation box 11 and then pass through the flow circulation box 11, thereby slowing down the wind speed and reducing noise.

[0030] As shown in Figure 2 , Figure 5 , the inner wall of the flow circulation box 11 is fixedly connected with a porous plate layer 17, and the porous plate layer 17 is arranged in a plurality of circular holes in a ring.

[0031] The porous plate layer 17 fixedly connected to the inner wall surface of the flow circulation box 11 makes the wind pass through the surface of the porous plate layer 17 through the holes in a ring, and is slowed down layer by layer, thereby improving the flow speed of the wind and reducing the sound effect, and then being discharged from the air outlet 3.

[0032] As shown in Figure 3 , the inner wall of the flow circulation box 11 is fixedly connected with a glass wool 14, and the inner wall of the flow circulation box 11 is provided with a plurality of sound insulation holes 13, and the plurality of sound insulation holes 13 are evenly distributed on the surface of the glass wool 14.

[0033] The glass wool 14 fixedly connected to the inner wall of the flow circulation box 11 and the sound insulation holes 13 opened on the surface of the glass wool 14 use the glass wool 14 as a porous material, which has good sound absorption performance, can effectively absorb sound, reduce noise propagation, has high fire resistance, is non-flammable, improves the safety of buildings, is resistant to chemical corrosion, and is suitable for various harsh environments.

[0034] As shown in Figure 3 , the inner wall of the flow circulation box 11 is fixedly connected with a polyester fiber 15, and the polyester fiber 15 is located at the outer periphery of the glass wool 14, the inner wall of the flow circulation box 11 is fixedly connected with a sound insulation foam 16, and the sound insulation foam 16 is located at the inner side of the glass wool 14.

[0035] The sound insulation holes 13 play the role of sound insulation and noise reduction; the combination of the polyester fiber 15 and the sound insulation foam 16 fixedly connected to the inner wall of the flow circulation box 11 plays the role of strengthening sound insulation and preventing external transmission.

[0036] The utility model discloses a working principle: through the wind power from the air inlet 2 into the drive circulation box body 11's inner chamber, through the circulation box body 11's inner chamber fixed connection's several deceleration frame 12 with the drainage groove 18 of deceleration frame 12 surface opening, play to drainage, alleviate the flow rate of wind power, utilize several deceleration frame 12 play to drive the airflow to the four -corner circulation backflow of deceleration frame 12 and circulation box body 11 in passing through circulation box body 11 circulation, play to slow down the wind speed sound attenuation, utilize the inner wall surface fixed connection's porous plate layer 17 of circulation box body 11 simultaneously, make wind power through the porous plate layer 17 surface one after another ring hole, be layer by layer deceleration, thereby improve the flow rate of wind, difficult to realize the function of sound, again from the air outlet 3 discharge, again through the inner wall fixed connection's glass wool 14 of circulation box body 11 and the sound insulation hole 13 of glass wool 14 surface opening, utilize glass wool 14 play to porous material, have good sound absorption performance, can effectively absorb sound, reduce noise transmission, but have high fire -retardant property, non -combustible advantage, improved the security of building, also be resistant to chemical corrosion, applicable to various severe environment, again with the sound insulation hole 13 play to sound insulation and noise reduction's function, make the inner wall fixed connection's polyester fiber 15 of circulation box body 11 and the combination of sound insulation foam 16, play to strengthen sound insulation, prevent the function of outside transmission.

[0037] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A silencer for an air conditioning unit comprising an air inlet (2), characterised in that: The back of the air inlet (2) is fixedly connected with a sound elimination assembly (1), and the back of the sound elimination assembly (1) is fixedly connected with an air outlet (3); The sound elimination assembly (1) comprises a flow-through box body (11), the front of the flow-through box body (11) is fixedly connected with the back of the air inlet (2), and the back of the flow-through box body (11) is fixedly connected with the front of the air outlet (3); The inner cavity of the flow-through box body (11) is fixedly connected with a plurality of speed reduction frames (12) around, the speed reduction frames (12) are in the shape of a tapered square frame, and the outer surfaces of the speed reduction frames (12) are provided with flow guide grooves (18).

2. The sound attenuator for an air conditioning unit of claim 1, wherein: The inner wall of the flow-through box body (11) is fixedly connected with a porous plate layer (17), and the porous plate layer (17) is arranged in the shape of a plurality of circular hole rings.

3. The sound attenuator of claim 1, wherein: The inner wall of the flow-through box body (11) is fixedly connected with glass wool (14) in the middle, a plurality of sound insulation holes (13) are formed in the inner wall of the flow-through box body (11), and the sound insulation holes (13) are evenly distributed on the surface of the glass wool (14).

4. The sound attenuator of claim 1, wherein: The inner wall of the flow-through box body (11) is fixedly connected with polyester fiber (15), and the polyester fiber (15) is located at the peripheral position of the glass wool (14); the inner wall of the flow-through box body (11) is fixedly connected with sound insulation foam (16), and the sound insulation foam (16) is located at the inner side position of the glass wool (14).

Images