Sound insulation and elimination device for unit type air conditioning unit

Abstract

The utility model relates to the technical field of silencing devices, and discloses a unit type air conditioning unit sound insulation silencing device which comprises an outer sound insulation cover, an air conditioning unit body is arranged in the outer sound insulation cover, a silencing assembly is arranged on the side wall of the outer sound insulation cover, a vibration isolation assembly is arranged at the bottom of the air conditioning unit body, and the silencing assembly comprises an inner sound absorption foam layer. The inner sound-absorbing foam layer is fixedly connected to the side wall of the outer sound-insulating cover, an air interlayer is arranged between the outer sound-insulating cover and the inner sound-absorbing foam layer, ventilation openings are formed in the outer sound-insulating cover and the inner sound-absorbing foam layer, a plurality of silencers are fixedly connected to the side wall of the inner sound-absorbing foam layer, and the outer sound-insulating cover is fixedly connected with the inner sound-absorbing foam layer. The side wall of the inner sound absorption foam layer is fixedly connected with a plurality of pieces of sound absorption cotton. According to the unit type air conditioning unit, through the multi-aspect synergistic effect of the outer sound insulation cover, the inner sound absorption foam and the air interlayer, noise generated during operation of the unit type air conditioning unit is effectively reduced, and noise pollution to the surrounding environment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting tool field especially relates to a unit type air conditioning unit sound insulation and noise elimination device. BACKGROUND

[0002] Unit type air conditioning machine is the refrigeration and heating equipment widely used in commercial, industrial and other places, and noise will be generated during operation. The noise elimination device is provided to reduce these noises, aiming to reduce the interference of air conditioning unit noise on the surrounding environment such as office area, residential area and the like, improve the comfort and quietness of the environment, and protect the normal work and life of people from excessive noise.

[0003] The traditional unit type air conditioning unit noise elimination device is mainly composed of a noise eliminator simply installed at the air inlet and air outlet of the air conditioning unit. The air inlet noise eliminator is mostly a resistive noise eliminator, which absorbs sound energy by using the sound absorbing material filled inside. The air outlet noise eliminator has a relatively simple structure, and some only rely on a simple sound insulation baffle to block part of the noise propagation, lacking a systematic and comprehensive noise elimination design and layout.

[0004] From the structure, the traditional noise elimination device has a simple and single structure. It is difficult to comprehensively deal with the noise generation and propagation path of the air conditioning unit with multiple sources by only setting noise eliminators at the air inlet and air outlet. For example, the vibration noise generated by components such as compressor and fan cannot be effectively blocked and reduced. These noises can be directly radiated outward through the structure of the unit. The noise elimination frequency band is narrow, and different frequency noises during air conditioning operation cannot be effectively processed, resulting in limited overall noise elimination effect. This makes the air conditioning unit still produce relatively large noise during operation, which reduces the work efficiency and concentration of employees in office places, and disturbs the rest of residents in residential areas, affecting the quality of life of residents. In addition, the noise exceeds the standard and does not meet the environmental protection requirements, and faces rectification and other problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a unit type air conditioning unit sound insulation and noise elimination device, aiming to improve the problem that the limited overall noise elimination effect of the traditional noise elimination device makes the air conditioning unit still produce relatively large noise during operation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a unit type air conditioning unit sound insulation and noise elimination device, comprising an outer sound insulation cover, the outer sound insulation cover is internally provided with an air conditioning body, the side wall of the outer sound insulation cover is provided with a noise elimination assembly, and the bottom of the air conditioning body is provided with a vibration isolation assembly.

[0007] The sound-absorbing assembly comprises an inner sound-absorbing foam layer, the inner sound-absorbing foam layer is fixedly connected to the side wall of the outer sound insulation cover, an air interlayer is arranged between the outer sound insulation cover and the inner sound-absorbing foam layer, a ventilation opening is arranged in the outer sound insulation cover and the inner sound-absorbing foam layer, a plurality of sound absorbers are fixedly connected to the side wall of the inner sound-absorbing foam layer, a plurality of sound-absorbing cottons are fixedly connected to the side wall of the inner sound-absorbing foam layer, and a rubber vibration isolation pad is arranged at the bottom of the air conditioner body.

[0008] Further, the vibration isolation assembly comprises a mounting seat arranged at the bottom of the air conditioner body.

[0009] Further, a plurality of fixing members are fixedly connected to the upper surface of the mounting seat, and a connecting table is fixedly connected to the top of each fixing member.

[0010] Further, a connecting column is fixedly connected between the connecting tables, and a top plate is arranged at the top of the connecting table.

[0011] Further, a plurality of dampers are arranged between the connecting table and the top plate, and a plurality of sliding rings are slidingly connected to the outer wall of the connecting column.

[0012] Further, a connecting block one is fixedly connected to the top of each sliding ring, and a connecting rod is rotatably connected to the outer wall of the connecting block one.

[0013] Further, a spring is sleeved on the outer wall of the connecting column, and the two ends of the spring are fixedly connected to the side walls of the sliding rings.

[0014] Further, a connecting block two is rotatably connected to one end of the connecting rod, and the connecting block two is fixedly connected to the lower surface of the top plate.

[0015] The utility model has the advantages of the following:

[0016] 1、The utility model discloses, first through the outer sound insulation cover plays the role of the preliminary blocking noise to spread outward, the inner sound-absorbing foam layer is as the sound-absorbing structure of inner layer, air interlayer utilizes the low conductivity of air, further blocks the noise, makes the noise energy gradually attenuate when passing through air interlayer, in the ventilation process, noise will be set up the sound absorber when passing through the ventilation opening and carries out the sound-absorbing treatment, thereby from many aspects synergistic effect, effectively reduce the noise that unit type air conditioning unit generates when operating, reduce the noise pollution to surrounding environment.

[0017] 2. In the utility model, through the movement of the top plate relative to the mounting seat, the multiple dampers play a buffering and shock absorbing role between the connecting table and the top plate at this time, after the stress is borne by the connecting block one, the sliding ring at the bottom of the connecting block one is further driven to slide on the outer wall of the connecting column, at this time, the vibration force can be dispersed and further buffered and dispersed through the tension of the spring, the transmission of vibration to the mounting foundation and the surrounding building structure is reduced, thereby reducing the solid sound transmission caused by vibration. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective view of a unit type air conditioning unit sound insulation and noise elimination device is provided in the utility model.

[0019] Figure 2 A schematic view of an outer sound insulation cover structure of a unit type air conditioning unit sound insulation and noise elimination device is provided in the utility model.

[0020] Figure 3 A schematic view of a connecting table structure of a unit type air conditioning unit sound insulation and noise elimination device is provided in the utility model.

[0021] LEGEND:

[0022] 1, outer sound insulation cover; 2, air conditioning body; 3, inner sound absorbing foam layer; 4, air sandwich; 5, ventilation opening; 6, silencer; 7, sound absorbing cotton; 8, rubber vibration isolation pad; 9, mounting seat; 10, fixing part; 11, connecting table; 12, connecting column; 13, top plate; 14, damper; 15, sliding ring; 16, connecting block one; 17, connecting rod; 18, connecting block two; 19, spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] REFERENCE Figures 1-2 An embodiment provided by the utility model: a unit type air conditioning unit sound insulation and noise elimination device, comprising an outer sound insulation cover 1, the outer sound insulation cover 1 is internally provided with an air conditioning body 2, the outer sound insulation cover 1 side wall is provided with a noise elimination assembly, and the air conditioning body 2 bottom is provided with a vibration isolation assembly.

[0025] The noise elimination assembly comprises an inner sound absorption foam layer 3 fixedly connected to the side wall of the outer sound insulation cover 1, an air interlayer 4 arranged between the outer sound insulation cover 1 and the inner sound absorption foam layer 3, ventilation openings 5 arranged in the inner sound absorption foam layer 3 and the outer sound insulation cover 1, a plurality of sound absorbers 6 fixedly connected to the side wall of the inner sound absorption foam layer 3, a plurality of sound absorption cottons 7 fixedly connected to the side wall of the inner sound absorption foam layer 3, and a rubber vibration isolation pad 8 arranged at the bottom of the air conditioner body 2.

[0026] Specifically, when the unit type air conditioning unit is running, the noise generated by the air conditioner body 2 spreads to the surrounding environment, the outer sound insulation cover 1 first plays a role, the metal material can reflect the noise, block part of the noise from spreading outward, the inner sound absorption foam layer 3 as an inner sound absorption structure absorbs the incoming noise, converts the sound energy into heat energy or other forms through its own physical properties, reduces noise reflection and propagation, the air interlayer 4 uses the low conductivity of air to block noise, so that the noise energy gradually attenuates when passing through, the ventilation openings 5 ensure normal ventilation and heat dissipation of the air conditioning unit, in the ventilation process, the sound absorbers 6 arranged at the ventilation openings 5 change the sound wave propagation characteristics and absorb sound energy by virtue of the internal structure and sound absorption materials, reduce the noise in the ventilation airflow, the sound absorption cottons 7 absorb part of the noise transmitted from the inner sound absorption foam layer 3, further purify the sound, and the rubber vibration isolation pad 8 arranged at the bottom of the air conditioner body 2 reduces the transmission of the vibration generated by the operation of the air conditioner body 2 to the installation foundation, because vibration is an important source of noise generation and propagation, reducing vibration indirectly reduces the noise generated by vibration, the outer sound insulation cover 1, the inner sound absorption foam layer 3, the air interlayer 4, the sound absorbers 6 at the ventilation openings 5, the sound absorption cottons 7, and the rubber vibration isolation pad 8 work together to reduce the noise generated by the operation of the unit type air conditioning unit, reduce the noise pollution to the surrounding environment, and make the air conditioning unit better meet the environmental requirements when running, which is conducive to its stable use and continuous development in various scenes.

[0027] With reference to Figure 3 The vibration isolation assembly comprises a mounting seat 9 arranged at the bottom of the air conditioner body 2, a plurality of fixing members 10 fixedly connected to the upper surface of the mounting seat 9, a connecting table 11 fixedly connected to the top of each fixing member 10, a connecting column 12 fixedly connected between the connecting tables 11, a top plate 13 arranged at the top of the connecting table 11, a plurality of dampers 14 arranged between the connecting table 11 and the top plate 13, a plurality of sliding rings 15 slidingly connected to the outer wall of the connecting column 12, a connecting block one 16 fixedly connected to the top of each sliding ring 15, a connecting rod 17 rotatably connected to the outer wall of the connecting block one 16, a spring 19 sleeved on the outer wall of the connecting column 12 and fixedly connected to the side wall of each sliding ring 15, a connecting block two 18 rotatably connected to one end of the connecting rod 17, and the connecting block two 18 fixedly connected to the lower surface of the top plate 13.

[0028] Specifically, when the air conditioner body 2 runs and causes the rubber vibration isolation pad 8 to shake relative to the mounting base 9, the top plate 13 will move relative to the mounting base 9 along with the shaking of the rubber vibration isolation pad 8. In this process, the plurality of dampers 14 begin to play their key role, which are between the connecting table 11 and the top plate 13. By virtue of their damping characteristics, they effectively buffer the impact force generated by the movement of the top plate 13. When the dampers 14 work, it will further make the connecting rod 17 on the outer wall of the connecting block two 18 at the bottom of the top plate 13 rotate, and gradually change its inclination angle during the rotation. The rotation of the connecting rod 17 will in turn generate a pulling force on the connecting block one 16. After being stressed, the connecting block one 16 will further drive the slip ring 15 at the bottom to slide on the outer wall of the connecting column 12. Through this series of mechanical movement and force transmission, the vibration force generated by the air conditioner body 2 can be dispersed at this time. In this process, the spring 19 will also further buffer the dispersed force by virtue of its own tension, so that the force is gradually weakened in the transmission process. In this way, the transmission of vibration to the mounting base and the surrounding building structure can be effectively reduced. Since vibration is an important source of solid sound transmission, by reducing the transmission of vibration, the solid sound caused by vibration is reduced, and the noise interference generated by the air conditioner during operation on the surrounding environment is reduced.

[0029] Working principle: when the unit type air conditioning unit is running, the noise generated by the air conditioning body 2 spreads to the surrounding, first, the outer sound insulation cover 1 plays a role in blocking the noise from spreading outward, its metal material can reflect part of the noise, the inner sound-absorbing foam layer 3 as the sound-absorbing structure of the inner layer can absorb part of the incoming noise, convert the sound energy into heat energy and other forms of energy, reduce the reflection and propagation of noise, the air layer 4 further blocks the noise by using the low conductivity of air, so that the noise energy gradually attenuates when passing through the air layer 4, the air vent 5 can ensure the normal ventilation and heat dissipation requirement of the air conditioning unit, during the ventilation process, the noise will be treated by the silencer 6 arranged at the air vent 5, the silencer 6 changes the propagation characteristics of sound waves and absorbs sound energy by the special acoustic structure and sound-absorbing material inside, reduces the noise in the ventilation airflow, at the same time, the sound-absorbing cotton 7 also absorbs part of the noise, further purifies the sound transmitted from the inner sound-absorbing foam layer 3, and the rubber vibration isolation pad 8 at the bottom of the air conditioning body 2 effectively reduces the transmission of vibration generated by the air conditioning body 2 to the installation foundation, because vibration is one of the important sources of noise generation and propagation, by reducing vibration, the noise radiated by vibration is also indirectly reduced, thereby synergistically reducing the noise generated by the unit type air conditioning unit during operation and reducing the noise pollution to the surrounding environment, when the air conditioning body 2 shakes during operation and the rubber vibration isolation pad 8 shakes relative to the mounting seat 9, the top plate 13 moves relative to the mounting seat 9, at this time, the plurality of dampers 14 play a buffering and damping role between the connecting table 11 and the top plate 13, and further make the connecting rod 17 of the outer wall of the connecting block two 18 at the bottom of the top plate 13 rotate and change the inclination angle, the rotation of the connecting rod 17 immediately pulls the connecting block one 16, the connecting block one 16 is further driven to slide the slip ring 15 at the bottom of the connecting block one 16 on the outer wall of the connecting column 12, at this time, the shock force can be dispersed and further buffered by the tension of the spring 19, the transmission of vibration to the installation foundation and the surrounding building structure is reduced, thereby reducing the solid-borne sound caused by vibration.

[0030] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A sound insulation and sound absorption device for a unitary air conditioning unit, comprising an outer sound insulation cover (1), characterized in that: The outer sound insulation cover (1) is internally provided with an air conditioner body (2), the outer sound insulation cover (1) is provided with a sound absorbing assembly on the side wall, and the air conditioner body (2) is provided with a vibration isolation assembly on the bottom; The sound absorbing assembly comprises an inner sound absorbing foam layer (3), the inner sound absorbing foam layer (3) is fixedly connected to the side wall of the outer sound insulation cover (1), an air interlayer (4) is arranged between the outer sound insulation cover (1) and the inner sound absorbing foam layer (3), ventilation openings (5) are formed in the inner sound absorbing foam layer (3) and the outer sound insulation cover (1), a plurality of sound absorbers (6) are fixedly connected to the side wall of the inner sound absorbing foam layer (3), a plurality of sound absorbing cotton (7) are fixedly connected to the side wall of the inner sound absorbing foam layer (3), and the air conditioner body (2) is provided with a rubber vibration isolation pad (8) on the bottom.

2. The sound insulation and sound absorption device for a unitary air conditioning unit according to claim 1, characterized in that: The vibration isolation assembly comprises a mounting seat (9), and the mounting seat (9) is arranged on the bottom of the air conditioner body (2).

3. The soundproofing and sound absorbing device for a unitary air conditioning unit of claim 2, wherein: A plurality of fixing members (10) are fixedly connected to the upper surface of the mounting seat (9), and a connecting table (11) is fixedly connected to the top of each fixing member (10).

4. The soundproofing and sound absorbing device for a unitary air conditioning unit of claim 3, wherein: A connecting column (12) is fixedly connected between a plurality of connecting tables (11), and a top plate (13) is arranged on the top of the connecting table (11).

5. The soundproofing and sound absorbing device for a unitary air conditioning unit of claim 4, wherein: A plurality of dampers (14) are arranged between the connecting table (11) and the top plate (13), and a plurality of sliding rings (15) are slidably connected to the outer wall of the connecting column (12).

6. The soundproofing and sound absorbing device for a unitary air conditioning unit of claim 5, wherein: A connecting block one (16) is fixedly connected to the top of each sliding ring (15), and a connecting rod (17) is rotatably connected to the outer wall of the connecting block one (16).

7. The sound isolation and sound abatement device for a packaged air conditioning unit of claim 6, wherein: A spring (19) is sleeved on the outer wall of the connecting column (12), and the two ends of the spring (19) are fixedly connected to the side walls of a plurality of sliding rings (15).

8. The sound isolation and sound abatement device for a packaged air conditioning unit of claim 7, wherein: A connecting block two (18) is rotatably connected to one end of the connecting rod (17), and the connecting block two (18) is fixedly connected to the lower surface of the top plate (13).

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