External silencer, air conditioner outdoor unit assembly and air conditioner system

By setting a detachable stainless steel silencer on the air conditioner online pipe, the problem of limited volume of the silencer is solved, and stronger silence effect and system stability are achieved, reducing noise interference and maintenance costs.

CN223242896UActive Publication Date: 2025-08-19QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422240466.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-08-19
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

In the prior art, the volume of the silencer in the compressor chamber of the air-conditioning outdoor unit is limited, resulting in insufficient silence capability and inability to effectively reduce noise.

Method used

The muffler is set on the air conditioner's online tube. The muffler body and the online tube are removably connected, including the main body part, the connecting part and the transition part, and are integrally formed and are made of stainless steel material to enhance the muffler effect.

Benefits of technology

By expanding the volume of the silencer, enhancing the silence capability, optimizing the silence effect, reducing noise propagation, improving system stability and service life, and reducing maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223242896U_ABST
    Figure CN223242896U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of air conditioner systems, in particular to an external silencer, an air conditioner outdoor unit assembly and an air conditioner system.The external silencer is used for an air conditioner, the air conditioner comprises an outdoor unit and an indoor unit, the outdoor unit and the indoor unit are connected through a connecting pipe, the external silencer comprises a silencer body, and the silencer body is connected with the indoor unit through a connecting pipe. And the silencer body is arranged on the connecting pipe. According to the external silencer, the air conditioner outdoor unit assembly and the air conditioner system, the silencer body is arranged on the connecting pipe, and the size of the silencer body is not limited by the size of a compressor cabin of the outdoor unit any more, so that the silencer body has enough size for silencing, the silencing capacity is enhanced, and the silencing effect is optimized.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning systems, and in particular to an external muffler, an air-conditioning outdoor unit component and an air-conditioning system. Background Art

[0002] The silencer uses sound-absorbing materials, eddies and turbulence to reduce noise. When air flows through the silencer, eddies and turbulence are generated. These flow phenomena absorb part of the energy of the sound waves, thereby achieving the effect of reducing noise.

[0003] The sound caused by the operation of the outdoor unit compressor of the air conditioner is one of the main sources of noise in the indoor unit. Figure 1 As shown, in the prior art, the muffler 10 is usually arranged in the compressor compartment of the external unit 100.

[0004] However, since the silencing ability of the silencer is positively correlated with the volume of its silencing cavity, and the space of the air-conditioning outdoor unit compressor compartment is often very limited, the silencing ability of the silencer located in the air-conditioning outdoor unit compressor compartment is limited. Utility Model Content

[0005] The utility model provides an external silencer, an air-conditioning outdoor unit component and an air-conditioning system, which are used to solve the defect in the prior art that the silencer is arranged in the compressor compartment of the outdoor unit and affects the silencer capability, and achieve sufficient volume for silencer.

[0006] The utility model provides an external muffler for an air conditioner, wherein the air conditioner comprises an external unit and an internal unit, and the external unit and the internal unit are connected through an online pipe. The external muffler comprises a muffler body, and the muffler body is arranged on the online pipe.

[0007] According to the external muffler provided by the utility model, the muffler body is detachably connected to the online pipe.

[0008] According to an external muffler provided by the utility model, the muffler body includes:

[0009] The main body is cylindrical and has a sound-absorbing chamber inside;

[0010] The connecting parts are arranged at both ends of the main body, and the connecting parts are detachably connected to the online pipe.

[0011] According to an external muffler provided by the present invention, the muffler body further includes a transition portion, which connects the main body and the connecting portion.

[0012] According to the external muffler provided by the utility model, the transition portion is in a frustum shape.

[0013] According to the external muffler provided by the present invention, the main body, the connecting portion and the transition portion are integrally formed.

[0014] According to an external muffler provided by the utility model, the muffler body includes a stainless steel muffler body.

[0015] According to the external silencer provided by the utility model, the connecting portion is sleeved on the outer circumference of the online pipe, and the connecting portion is sealed and connected to the online pipe.

[0016] The utility model also provides an air-conditioning outdoor unit assembly, comprising:

[0017] Outdoor unit body;

[0018] An online pipe, one end of which is connected to the outdoor unit body; and the online pipe is provided with an external silencer as described in any of the above items.

[0019] The utility model also provides an air-conditioning system, comprising the external silencer as described above or the air-conditioning outdoor unit component as described above.

[0020] The external silencer provided by the utility model is arranged on the online pipe through the silencer body. The volume of the silencer body is no longer limited by the volume of the outdoor unit compressor compartment, so that the silencer body has sufficient volume for silencing, the silencing ability is enhanced, and the silencing effect is optimized.

[0021] The air-conditioning outdoor unit assembly and the air-conditioning system provided by the present invention have the various advantages as described above because they include the external muffler as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the installation structure of the muffler provided by the prior art.

[0024] Figure 2 This is a schematic diagram of the installation structure of the external silencer provided by the utility model.

[0025] Reference numerals:

[0026] 1. Muffler body; 100. External unit; 200. Connection pipe; 11. Main body; 12. Connecting part; 13. Transition part. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0029] The silencer's frequency band and silencer capacity are both related to the volume of its silencer cavity. In the prior art, the silencer is usually installed in the compressor compartment of the air-conditioning outdoor unit. Since the volume of the outdoor unit compressor compartment is limited, the volume of the silencer is limited, which in turn affects the silencer capacity to a certain extent.

[0030] The following combination Figure 2 The utility model is described as an external silencer.

[0031] The first embodiment of the present invention is to provide an external silencer for an air conditioner, wherein the air conditioner includes an outdoor unit 100 and an indoor unit, and the outdoor unit 100 and the indoor unit are connected by an online pipe 200 to realize the circulation of cooling or heating functions. The external silencer includes a silencer body 1, and the silencer body 1 is arranged on the online pipe 200. Compared with the prior art in which the silencer body 1 is arranged in the compressor compartment of the outdoor unit, there is enough volume for silencing, thereby improving the silencing ability. Moreover, the silencer body can also directly intervene in the source of the noise, that is, the vibration and turbulence generated when the refrigerant or air flows in the online pipe 200, thereby minimizing the possibility of noise propagation to the surrounding environment.

[0032] The internal structure of the muffler body 1 may include multiple layers of sound-absorbing material, reflective panels, or other acoustic design elements. These elements significantly reduce the noise transmitted through the connection pipe 200 by absorbing, reflecting, or dissipating sound wave energy. Furthermore, the shape, size, and material of the muffler body 1 may also be optimized to ensure optimal noise reduction without affecting the overall performance of the air conditioning system.

[0033] Specifically, the muffler body 1 can be connected to the external unit 100 through a three-way stop valve.

[0034] The external muffler provided in this embodiment is not limited by the space of the outdoor unit compressor compartment. By appropriately increasing the volume of the muffler body, the interference of noise on the user's living environment can be reduced.

[0035] In a feasible embodiment of the present invention, the silencer body 1 is detachably connected to the online pipe 200. The detachable connection makes the silencer body 1 more convenient to install, without the need for large-scale changes to the entire air-conditioning system. At the same time, when the silencer needs to be cleaned, repaired or replaced, it can also be easily removed from the online pipe 200, which greatly saves time and labor costs. Air-conditioning systems of different models and powers may produce different degrees of noise, and the detachable silencer body 1 can be selected and replaced according to actual needs to match the best noise reduction effect. In addition, as the air-conditioning system ages or the operating conditions change, the user can also adjust or replace the silencer at any time to ensure continued effective noise reduction performance. For some old air-conditioning systems that have been installed but are noisy, by adding this detachable external silencer, the noise can be significantly reduced without replacing the entire system, thereby saving the expensive cost of replacing a new system.

[0036] In one embodiment of the present invention, the muffler body 1 includes a main body 11 and a connecting portion 12. The main body 11 is the core of the muffler body 1 and is cylindrical in shape. This cylindrical structure guides the fluid through smoothly, reducing turbulence and eddies, thereby reducing the noise generated by the fluid flow. The main body 11 contains a muffler chamber, which may be filled with multiple layers of sound-absorbing materials, such as porous foam or fiber materials. These materials can absorb the sound wave energy generated by the fluid flow, thereby reducing the propagation of noise.

[0037] The connecting portion 12 is provided at both ends of the main body 11. The connecting portion 12 is detachably connected to the online pipe 200, making the muffler more convenient to install, maintain, and replace. The connecting portion 12 may be connected by threaded connection, flange connection, or quick connector to ensure a tight connection with the online pipe 200, while being easily disassembled. This not only improves the flexibility of installation, but also facilitates cleaning, repair, or replacement when necessary. In order to ensure the normal operation of the air-conditioning system and prevent noise leakage, the connecting portion 12 must have good sealing performance. By using high-quality sealing materials and precise processing technology, the sealing effect between the connecting portion 12 and the online pipe 200 can be ensured.

[0038] In a feasible embodiment of the present invention, the muffler body 1 also includes a transition portion 13, which connects the main body 11 and the connecting portion 12. The transition portion 13 plays a role in smooth transition and enhancing structural stability. The shape and size of the transition portion 13 may be adjusted according to specific design requirements to ensure a close fit with the main body 11 and the connecting portion 12. Since the main body 11 is cylindrical to form a silencer chamber, and the connecting portion 12 needs to be connected to the online pipe 200, there are differences in shape and size between the two. The transition portion 13 achieves a smooth transition from the main body 11 to the connecting portion 12 through a specific shape, avoiding sudden changes in flow rate or vortices when the fluid passes through, thereby further reducing the generation of noise. In other words, by setting the transition portion 13, the flow path of the fluid inside the muffler can be further optimized, reducing the generation of turbulence and vortices, thereby improving the sound insulation effect.

[0039] In a feasible embodiment of the present invention, the transition portion 13 is in the shape of a truncated cone, and the truncated cone structure has a gradually changing diameter, smoothly transitioning from the larger diameter of the main body 11 to the smaller diameter of the connecting portion 12. This smooth transition reduces the sudden changes in the fluid during passage, helps to reduce fluid turbulence and eddies, and thus reduces the generation of noise. The truncated cone-shaped transition portion 13 can guide the fluid to enter and leave the silencer chamber in a more stable manner, further optimizing the flow path of the fluid inside the silencer. This design helps to reduce fluid shock and vibration, and enhance the overall noise reduction effect. The truncated cone structure has good mechanical stability and can more effectively disperse and withstand vibrations and stresses from the online pipe 200. This helps to ensure the stability and reliability of the muffler body 1 during long-term operation, and reduce the risk of loosening or damage due to vibration.

[0040] In one feasible embodiment of the present invention, the main body 11, connecting portion 12, and transition portion 13 are integrally formed. The main body 11, connecting portion 12, and transition portion 13 are manufactured as a single unit, without any additional seams or interfaces at their junctions. This significantly enhances the structural strength of the entire muffler body, making the muffler more stable and reliable when withstanding vibrations and stresses from the connection pipe 200. By reducing the number of seams and interfaces between components, the integrally formed muffler body 1 is less likely to loosen, break, or become damaged during long-term use, thereby extending the product's service life.

[0041] Therefore, in the above embodiments, the main body 11, the connecting portion 12 and the transition portion 13 are arranged as an integrally formed structure, which not only enhances the structural strength and sealing performance of the muffler, but also simplifies the manufacturing process and improves the aesthetics and durability.

[0042] In a feasible embodiment of the present invention, the muffler body 1 includes a stainless steel muffler body. Stainless steel material has strong corrosion resistance and can resist erosion by most chemicals and environments. This is especially important for air-conditioning systems used outdoors or in humid environments, because the online pipe 200 and the muffler body 1 connected thereto may be exposed to these environments. The stainless steel muffler body 1 can ensure long-term and stable noise reduction effects and avoid performance degradation or damage due to corrosion. Stainless steel material can withstand higher temperatures and pressures, which makes the stainless steel muffler body suitable for air-conditioning systems under various working conditions. Whether in the hot summer or the cold winter, the stainless steel muffler can maintain its stable performance and noise reduction effects.

[0043] Additionally, stainless steel's high strength and excellent mechanical properties give the stainless steel muffler body exceptional durability. It can withstand long-term vibration, shock, and stress without deforming or damaging, thus extending the muffler's service life. Stainless steel's smooth surface resists the accumulation of dirt and impurities, making the stainless steel muffler body relatively easy to clean and maintain, helping to maintain the muffler's optimal working condition and noise reduction effectiveness while minimizing performance degradation caused by dirt accumulation.

[0044] In one feasible embodiment of the present invention, connector 12 is sleeved around the outer circumference of connection pipe 200 and is sealed to connection pipe 200, effectively preventing fluid leakage during transmission and reducing fluid loss due to leakage, thereby improving the overall efficiency of the air conditioning system. Fluid flows more smoothly within the sealed pipe, reducing energy loss and unnecessary waste.

[0045] It should be noted that the connector 12 is sleeved around the outer circumference of the connection pipe 200 and secured together via a sealed connection. This structure enhances the strength of the connection between the two. Even under vibration or impact, the connector 12 remains stable and is not susceptible to loosening or falling off. Furthermore, the sealed connection reduces corrosion and wear caused by fluid leakage, thereby extending the service life of the connector 12 and the connection pipe 200. Furthermore, the stable connection structure also reduces fatigue damage caused by vibration and impact.

[0046] The external silencer provided in the embodiment of the first aspect of the present invention has a silencer body 1 arranged on a connecting pipe 200 for connecting the outdoor unit 100 and the indoor unit. The volume of the silencer body 1 is no longer limited by the space of the outdoor unit compressor compartment, so that it has sufficient volume for silencing, thereby improving the silencing capability.

[0047] The second embodiment of the present invention provides an air-conditioning outdoor unit assembly, including an outdoor unit 100 and an online pipe 200, one end of which is connected to the outdoor unit 100; and the online pipe 200 is provided with an external silencer as in any of the above embodiments.

[0048] The outdoor unit 100 is responsible for the compression and condensation of the refrigerant and is connected to the indoor unit via the connection pipe 200 to achieve heat and cold transfer. The connection pipe 200 acts as a bridge connecting the outdoor unit 100 and the indoor unit, carrying the flow of refrigerant. During this flow, a certain amount of noise is generated. An external muffler is provided on the connection pipe 200 to directly eliminate the noise generated by the connection pipe 200. Furthermore, the volume of the external muffler is no longer limited by the space in the outdoor unit's compressor compartment, allowing it to have sufficient volume for noise reduction, thus optimizing the silencing effect.

[0049] A third aspect of the present invention provides an air-conditioning system, comprising an external muffler as in any one of the above embodiments or an air-conditioning outdoor unit assembly as in the above embodiments.

[0050] The air conditioning system provided by the present invention has the various advantages as described above because it includes the external silencer or the air conditioning outdoor unit assembly as described above.

[0051] The air conditioning system provided by the present invention can be a round cabinet unit, a square cabinet unit, a wall mounted unit or a window unit. In other words, any air conditioning system can use the external silencer or air conditioning outdoor unit assembly of the present invention.

[0052] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or modes and features of different embodiments or modes described in this specification without contradiction.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An external silencer for an air conditioner, the air conditioner comprising an external unit (100) and an internal unit, wherein the external unit (100) and the internal unit are connected via a connecting pipe (200), characterized in that: The external silencer comprises a silencer body (1), and the silencer body (1) is arranged on the online pipe (200).

2. The external muffler according to claim 1, characterized in that: The muffler body (1) and the online pipe (200) are detachably connected.

3. The external muffler according to claim 1, characterized in that: The muffler body (1) comprises: The main body (11) is cylindrical and has a sound-absorbing chamber inside; The connecting portion (12) is provided at both ends of the main body (11), and the connecting portion (12) is detachably connected to the online pipe (200).

4. The external muffler according to claim 3, characterized in that: The muffler body (1) further comprises a transition portion (13), wherein the transition portion (13) connects the main body portion (11) and the connecting portion (12).

5. The external muffler according to claim 4, characterized in that: The transition portion (13) is in a truncated cone shape.

6. The external muffler according to claim 4, characterized in that: The main body (11), the connecting portion (12) and the transition portion (13) are integrally formed.

7. The external muffler according to claim 1, characterized in that: The muffler body (1) comprises a stainless steel muffler body.

8. The external muffler according to claim 3, characterized in that: The connecting portion (12) is sleeved on the outer circumference of the online pipe (200), and the connecting portion (12) is sealedly connected to the online pipe (200).

9. An air conditioner outdoor unit assembly, characterized in that: include: External unit (100); An online pipe (200), one end of which is connected to the external unit (100); Furthermore, the online pipe (200) is provided with an external silencer as claimed in any one of claims 1 to 8.

10. An air conditioning system, characterized in that: It comprises the external silencer according to any one of claims 1 to 8 or the air conditioner outdoor unit assembly according to claim 9.