Noise reduction equipment for central air conditioner

Abstract

The utility model relates to the technical field of central air conditioners, in particular to noise reduction equipment for a central air conditioner, which comprises a base, an air conditioner outdoor unit and a mounting pipeline, the air conditioner outdoor unit is fixedly connected above the base, and the mounting pipeline is fixedly connected on a wall surface in a central air conditioner mounting room. A pipeline wrapping noise reduction structure is arranged on the inner side of the installation pipeline, and a central air conditioner air outlet stable noise reduction structure is arranged on the inner side of the installation pipeline. According to the noise reduction equipment for the central air conditioner, the cross beam transversely penetrates through the inner side of the whole air outlet fence, the cross beam is made of firmer aluminum alloy materials, air outlet holes capable of being used for refrigerating the central air conditioner are formed in the middle of the inclined plate, and the inclined plate can be matched with the cross beam to achieve a more stable and firmer air outlet style; therefore, the shape of the air outlet is not easy to change seriously after long-time use, noise generated when wind blows the fence is reduced, and the noise reduction effect of the noise reduction equipment for the central air conditioner is improved by reinforcing the air outlet.

Description

Technical Field

[0001] This utility model relates to the field of central air conditioning technology, specifically to a noise reduction device for central air conditioning. Background Technology

[0002] A central air conditioning system consists of a cold and heat source system and an air conditioning system. It is a main unit that regulates indoor temperature by circulating air through ducts. The main sources of noise in a central air conditioning system include inherent equipment noise, airflow noise from the ducts, and mechanical noise from vibration.

[0003] For example, the authorization announcement number "CN222560243U" is for a noise reduction device for central air conditioning. It is equipped with the advantages of reducing the noise generated by the vibration of central air conditioning and facilitating the removal and maintenance of central air conditioning. However, the existing noise reduction devices for central air conditioning mainly target the outdoor unit and the air outlet of the indoor unit. Since the outdoor unit of a typical household central air conditioning unit is located outdoors, the impact of noise on the indoor environment is relatively limited. On the contrary, as the years of use increase, the grille at the air outlet will age and loosen. Therefore, when the air conditioner blows air outward, it causes the aging grille to shake and generate noise, which affects the noise reduction effect of the noise reduction device for central air conditioning. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the noise reduction effect of existing noise reduction devices for central air conditioning is not obvious, and to propose a noise reduction device for central air conditioning.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a noise reduction device for central air conditioning, including a base, an outdoor unit of the air conditioner and an installation pipe. The outdoor unit of the air conditioner is fixedly connected to the top of the base, and the installation pipe is fixedly connected to the wall of the central air conditioning installation room. The inner side of the installation pipe is provided with a pipe wrapping noise reduction structure. The lower end of the base is provided with a vibration damping and noise reduction structure for the outdoor unit of the air conditioner, and the inner side of the installation pipe is provided with a central air conditioning outlet stabilization and noise reduction structure.

[0007] Preferably, the central air conditioning outlet stabilization and noise reduction structure includes an outlet grille and a crossbeam. The outlet grille is movably installed on the outer wall of the installation pipe. Multiple mounting blocks are fixedly connected to the edge of the outlet grille. Fixing bolts are threaded to the inner side of the multiple mounting blocks. The other end of the multiple fixing bolts is threaded to the inside of the installation pipe. The crossbeam is fixedly installed in the middle of the outlet grille. Multiple inclined plates are fixedly connected to both sides of the crossbeam. Air outlet holes are fixedly opened on the inner side of the multiple inclined plates.

[0008] Preferably, the pipe-wrapped noise reduction structure includes a delivery pipe and a sound-absorbing layer. The delivery pipe is fixedly connected inside the installation pipe, the inner wall of the delivery pipe is fixedly connected to the sound-absorbing layer, and a protective layer is fixedly sleeved on the outer side of the sound-absorbing layer.

[0009] Preferably, the air conditioner outdoor unit vibration reduction and noise reduction structure includes support feet and a housing. Multiple support feet are fixedly connected to the lower end of the base. The housing is fixedly sleeved on the outer side of the multiple support feet. Filling liquid is fixedly provided on the inner side of the housing. A sealing gasket is fixedly sleeved on the outer wall of the support feet.

[0010] Preferably, one end of the outdoor unit of the air conditioner is fixedly connected to a drain pipe, and the other end of the outdoor unit is fixedly connected to a gas supply pipe, the other end of which is connected to the interior of the installation pipe.

[0011] Preferably, the other end of the gas transmission pipeline is connected to the inside of the delivery pipe, and the other end of the delivery pipe is connected to the air outlet hole of the air outlet grille.

[0012] The present invention proposes a noise reduction device for central air conditioning, the advantages of which are as follows: the crossbeam runs horizontally through the entire inner side of the air outlet grille, the crossbeam is made of a more robust aluminum alloy material, and an air outlet hole for central air conditioning cooling is drilled in the middle of the inclined plate. The inclined plate can work with the crossbeam to achieve a more stable and robust air outlet shape. In this way, even after long-term use, the shape of the air outlet will not change significantly, reducing the noise generated by the wind blowing against the grille. Therefore, the noise reduction effect of the noise reduction device for central air conditioning is improved by reinforcing the air outlet. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 for Figure 1 A frontal sectional view;

[0015] Figure 3 for Figure 1 Top view diagram;

[0016] Figure 4 for Figure 2 Enlarged sectional view of section A in the middle;

[0017] Figure 5 for Figure 2 Enlarged sectional view of section B in the middle;

[0018] Figure 6 for Figure 2 Enlarged sectional view of section C.

[0019] In the diagram: 1. Base, 2. Air conditioner outdoor unit, 3. Installation pipe, 4. Gas supply pipe, 5. Drain pipe, 6. Pipe wrapping noise reduction structure, 61. Delivery pipe, 62. Sound absorption layer, 63. Protective layer, 7. Central air conditioner vent stabilization and noise reduction structure, 71. Vent grille, 72. Mounting block, 73. Fixing bolt, 74. Crossbeam, 75. Angled plate, 76. Air outlet, 8. Air conditioner outdoor unit vibration damping and noise reduction structure, 81. Support foot, 82. Outer shell, 83. Filler fluid, 84. Sealing gasket. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Please see Figure 1-6 In this embodiment, a noise reduction device for central air conditioning includes a base 1, an outdoor unit 2, and an installation pipe 3. The outdoor unit 2 is fixedly connected above the base 1. The outdoor unit 2 belongs to the relatively mature existing technology at this stage. The outdoor unit 2 is mainly composed of several core components: the compressor compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas to provide power for the refrigeration cycle; and the condenser cools the high-temperature, high-pressure gaseous refrigerant and converts it into a liquid state.

[0022] At the same time, the heat is dissipated into the outdoor air. The fan accelerates the airflow, helps the condenser dissipate heat, and ensures efficient heat dissipation. The installation pipe 3 is fixedly connected to the wall of the room where the central air conditioning is installed. The installation pipe 3 is embedded in the wall where the central air conditioning is needed. The inner side of the installation pipe 3 is provided with a pipe wrapping noise reduction structure 6. The lower end of the base 1 is provided with an air conditioner outdoor unit vibration reduction and noise reduction structure 8. The inner side of the installation pipe 3 is provided with a central air conditioning outlet stabilization and noise reduction structure 7.

[0023] The central air conditioning outlet stabilization and noise reduction structure 7 includes an outlet grille 71 and a crossbeam 74. The outlet grille 71 is movably installed on the outer wall of the installation pipe 3. The outlet grille 71 is made of white PVC plastic with good toughness. The outlet grille 71 can be installed by tightening it on the installation pipe 3 with fixing bolts 73, and can also be disassembled by turning the fixing bolts 73 in the opposite direction. Multiple mounting blocks 72 are fixedly connected to the edge of the outlet grille 71. The inner side of the multiple mounting blocks 72 is threaded with fixing bolts 73, and the other end of the multiple fixing bolts 73 is threaded to the inside of the installation pipe 3.

[0024] The crossbeam 74 is fixedly installed in the middle of the air outlet grille 71. The crossbeam 74 runs horizontally through the inner side of the entire air outlet grille 71. The crossbeam 74 is made of a more robust aluminum alloy material. Multiple inclined plates 75 are welded diagonally to both sides of the crossbeam 74. An air outlet hole 76 for central air conditioning cooling is drilled in the middle of the inclined plate 75. The inclined plate 75 can work with the crossbeam 74 to form a more stable and robust air outlet pattern. This ensures that the shape of the air outlet 76 will not change significantly even after long-term use, and reduces the noise generated by the wind blowing against the grille. Multiple inclined plates 75 are fixedly connected to both sides of the crossbeam 74. An air outlet hole 76 is fixedly opened on the inner side of the multiple inclined plates 75.

[0025] The air outlet grille 71 is made of white, tough PVC plastic. The air outlet grille 71 can be installed on the installation pipe 3 by tightening the fixing bolts 73, or it can be disassembled by turning the fixing bolts 73 in the opposite direction. The crossbeam 74 runs horizontally through the inside of the entire air outlet grille 71. The crossbeam 74 is made of more robust aluminum alloy material. Multiple inclined plates 75 are welded diagonally to both sides of the crossbeam 74. An air outlet hole 76 for central air conditioning cooling is chiseled in the middle of the inclined plates 75.

[0026] The inclined plate 75 can work with the crossbeam 74 to create a more stable and robust air outlet pattern. This ensures that the shape of the air outlet 76 does not change significantly even after long-term use, reducing the noise generated by the wind blowing against the fence. Therefore, by reinforcing the air outlet, the noise reduction effect of the noise reduction equipment for central air conditioning is improved.

[0027] The pipe-wrapped noise reduction structure 6 includes a delivery pipe 61 and a sound-absorbing layer 62. The delivery pipe 61 is used to deliver the cold air from the central air conditioning system to the indoor space. The delivery pipe 61 is fixedly connected inside the installation pipe 3. The inner wall of the delivery pipe 61 is fixedly connected to the sound-absorbing layer 62, which is made of foam sponge material. The sound-absorbing layer 62 can reduce the diffusion of noise from the delivery pipe 61 by blocking it. A protective layer 63 is fixedly sleeved on the outside of the sound-absorbing layer 62. The protective layer 63 is made of high-strength aluminum tube and sleeved on the outside of the delivery pipe 61. In this way, the protective layer 63 can improve the robustness of the delivery pipe 61.

[0028] The vibration reduction and noise reduction structure 8 of the air conditioner outdoor unit includes support feet 81 and a housing 82. Multiple support feet 81 are fixedly connected to the lower end of the base 1. The support feet 81 support the base 1 and the air conditioner outdoor unit 2 above. The housing 82 is fixedly sleeved on the outside of the multiple support feet 81. The housing 82 is filled with a filling liquid 83. The filling liquid 83 is made of foamed sponge material with good expansion properties. In this way, the working vibration generated by the air conditioner outdoor unit 2 will be transmitted to the support feet 81 below. Then, the vibration of the support feet 81 will be absorbed and attenuated by the filling liquid 83. The filling liquid 83 is fixedly installed on the inner side of the housing 82. A sealing gasket 84 is fixedly sleeved on the outer wall of the support feet 81. The sealing gasket 84 is made of rubber material. The sealing gasket 84 can seal the gaps in the housing 82 where the filling liquid 83 is located to reduce noise transmission.

[0029] One end of the outdoor unit 2 of the air conditioner is fixedly connected to a drain pipe 5, which can drain the condensate water generated by the operation of the outdoor unit 2 of the central air conditioner. The other end of the outdoor unit 2 of the air conditioner is fixedly connected to a gas pipeline 4, and the other end of the gas pipeline 4 is connected to the interior of the installation pipeline 3.

[0030] The other end of the gas transmission pipe 4 is connected to the inside of the transmission pipe 61, and the other end of the transmission pipe 61 is connected to the air outlet 76 of the air outlet grille 71.

[0031] Working principle:

[0032] Noise reduction equipment for central air conditioning is used on the outside of residential central air conditioning systems to reduce noise and improve the quality of life.

[0033] Main structure of noise reduction equipment for central air conditioning:

[0034] The outdoor unit 2 of the air conditioner is a relatively mature existing technology. The outdoor unit 2 of the air conditioner is mainly composed of several core components. The compressor compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gas to provide power for the refrigeration cycle. The condenser cools the high-temperature and high-pressure gaseous refrigerant and converts it into a liquid state, while dissipating heat into the outdoor air. The fan accelerates the air flow and helps the condenser dissipate heat to ensure efficient heat removal. The installation pipe 3 is embedded in the wall of the room where central air conditioning is needed.

[0035] Noise reduction structure at the air outlet of the noise reduction equipment for central air conditioning:

[0036] The air outlet grille 71 is made of white, resilient PVC plastic. The air outlet grille 71 can be installed on the installation pipe 3 by tightening the fixing bolts 73, or it can be disassembled by turning the fixing bolts 73 in the opposite direction. The crossbeam 74 runs horizontally through the inside of the entire air outlet grille 71. The crossbeam 74 is made of more robust aluminum alloy material. Multiple inclined plates 75 are welded diagonally to both sides of the crossbeam 74. An air outlet 76 for central air conditioning cooling is drilled in the middle of the inclined plates 75. The inclined plates 75 work together with the crossbeam 74 to form a more stable and robust air outlet shape. This ensures that the shape of the air outlet 76 will not change significantly even after long-term use, and reduces the noise generated by the wind blowing against the grille.

[0037] The ductwork of the central air conditioning noise reduction equipment is wrapped with a noise reduction structure.

[0038] The delivery pipe 61 is used to deliver the cold air from the central air conditioning system to the indoor space. The sound-absorbing layer 62 is made of foam sponge material. The sound-absorbing layer 62 can reduce the spread of noise from the delivery pipe 61 by blocking it. The protective layer 63 is made of high-strength aluminum tube and is sleeved on the outside of the delivery pipe 61. In this way, the protective layer 63 can improve the robustness of the delivery pipe 61.

[0039] Vibration reduction and noise reduction structure of the outdoor unit of central air conditioning noise reduction equipment:

[0040] The support foot 81 supports the base 1 and the air conditioner outdoor unit 2 above at the lower end. The outer casing 82 is filled with a filling liquid 83, which is made of foamed sponge material with good expansion properties. In this way, the working vibration generated by the air conditioner outdoor unit 2 will be transmitted to the support foot 81 below, and then the vibration of the support foot 81 will be absorbed and attenuated by the filling liquid 83. The sealing gasket 84 is made of rubber material. The sealing gasket 84 can seal the gaps in the outer casing 82 where the filling liquid 83 is located to reduce noise transmission.

[0041] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A noise reduction device for a central air conditioning system, comprising a base (1), an outdoor unit (2), and an installation pipe (3), wherein the outdoor unit (2) is fixedly connected above the base (1), and the installation pipe (3) is fixedly connected to the wall of the central air conditioning installation room, characterized in that: The inner side of the installation pipe (3) is provided with a pipe wrapping noise reduction structure (6), the lower end of the base (1) is provided with an air conditioner outdoor unit vibration reduction and noise reduction structure (8), and the inner side of the installation pipe (3) is provided with a central air conditioner outlet stabilization and noise reduction structure (7).

2. The noise reduction device for central air conditioning according to claim 1, characterized in that: The central air conditioning outlet stabilization and noise reduction structure (7) includes an outlet grille (71) and a crossbeam (74). The outlet grille (71) is movably installed on the outer wall of the installation pipe (3). Multiple mounting blocks (72) are fixedly connected to the edge of the outlet grille (71). The inner side of the multiple mounting blocks (72) is threaded with fixing bolts (73). The other end of the multiple fixing bolts (73) is threaded to the inside of the installation pipe (3). The crossbeam (74) is fixedly installed in the middle of the outlet grille (71). Multiple inclined plates (75) are fixedly connected to both sides of the crossbeam (74). Air outlet holes (76) are fixedly opened on the inner side of the multiple inclined plates (75).

3. The noise reduction device for central air conditioning according to claim 1, characterized in that: The pipe-wrapped noise reduction structure (6) includes a delivery pipe (61) and a sound-absorbing layer (62). The delivery pipe (61) is fixedly connected inside the installation pipe (3). The inner wall of the delivery pipe (61) is fixedly connected to the sound-absorbing layer (62), and the outer side of the sound-absorbing layer (62) is fixedly sleeved with a protective layer (63).

4. The noise reduction device for central air conditioning according to claim 1, characterized in that: The air conditioner outdoor unit vibration reduction and noise reduction structure (8) includes support feet (81) and outer shell (82). Multiple support feet (81) are fixedly connected to the lower end of the base (1). The outer shell (82) is fixedly sleeved on the outer side of the multiple support feet (81). Filling liquid (83) is fixedly provided on the inner side of the outer shell (82). Sealing gasket (84) is fixedly sleeved on the outer wall of the support feet (81).

5. The noise reduction device for central air conditioning according to claim 1, characterized in that: One end of the outdoor unit (2) of the air conditioner is fixedly connected to a drain pipe (5), and the other end of the outdoor unit (2) of the air conditioner is fixedly connected to a gas supply pipe (4). The other end of the gas supply pipe (4) is connected to the interior of the installation pipe (3).

6. The noise reduction device for central air conditioning according to claim 5, characterized in that: The other end of the gas transmission pipe (4) is connected to the inside of the delivery pipe (61), and the other end of the delivery pipe (61) is connected to the air outlet hole (76) of the air outlet fence (71).

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