Air conditioner muffler and air conditioner

Abstract

The utility model discloses an air conditioner silencer and air conditioner with air conditioner silencer relates to air conditioner technical field, including silencing chamber, silencing mechanism and flow guide pipe. The silencing chamber is equipped with the first interface and the second interface of opposite setting, the silencing mechanism is located in the silencing chamber, and the silencing mechanism can be crossed for flowing medium, the flow guide pipe is located in the silencing chamber, and the flow guide pipe is connected with the silencing mechanism, and both ends of flow guide pipe are correspondingly arranged with the first interface and the second interface, and the flow guide pipe is used for flowing medium flow. The flow guide pipe in the air conditioner silencer can directly flow for part flowing medium, and the shunt effect of flow guide pipe reduces the pressure loss of flowing medium, guarantees the stability of air conditioner refrigeration and heating performance, thereby gives consideration to the performance of air conditioner and the noise reduction effect.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to an air conditioner muffler and an air conditioner. Background Technology

[0002] During air conditioner operation, the pressure pulsations generated by the compressor can cause gas noise, severely impacting the user experience. To reduce this noise, existing technologies typically employ reactive silencers. Reactive silencers utilize baffles perpendicular to the flow direction of the fluid within the silencer chamber. These baffles have through-holes smaller than the inlet diameter, and are combined with a closed-end conical tube structure. This increases the cross-sectional area of ​​the silencer chamber, reducing the flow pressure of the fluid, and the displaced sound waves generated by the through-holes cancel out the noise, achieving a certain level of noise reduction. However, to enhance the noise reduction effect, multiple layers of perforated baffles are required within the silencer chamber, with the baffles and conical tube arranged sequentially along the flow direction of the fluid. The fluid must continuously pass through these multiple layers of barriers to complete its flow. While this multi-layered barrier design enhances noise reduction through multiple sound wave cancellations, it can easily lead to excessive local pressure loss as the fluid passes through these layers. Unstable pressure of the flowing medium directly affects the cooling and heating efficiency of the air conditioner. Excessive pressure loss of the flowing medium will reduce the cooling and heating effect of the air conditioner and increase its energy consumption, making it difficult to balance noise reduction and air conditioner performance. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an air conditioner muffler that not only achieves effective noise reduction but also avoids excessive pressure loss of the flowing medium, thus balancing noise reduction effectiveness with air conditioner performance.

[0004] This utility model also proposes an air conditioner having the above-mentioned air conditioner muffler.

[0005] An air conditioner muffler according to a first aspect of the present invention includes a muffler cavity with a first interface and a second interface disposed opposite to each other; a muffler mechanism disposed within the muffler cavity, the muffler mechanism being able to allow a flowing medium to pass through; and a flow guide pipe disposed within the muffler cavity, the flow guide pipe being connected to the muffler mechanism, the two ends of the flow guide pipe being respectively disposed corresponding to the first interface and the second interface, the flow guide pipe being used to allow the flowing medium to flow.

[0006] It has at least the following beneficial effects: The silencing cavity has a first and a second interface, through which the silencing mechanism allows the flowing medium to pass. A guide pipe is connected to the silencing mechanism, with its two ends corresponding to the first and second interfaces, respectively. When the flowing medium flows, regardless of whether the first or second interface is used as the inlet, a portion of the medium flows through the silencing mechanism, where its internal structure cancels out sound waves and attenuates energy, achieving core noise reduction. The other portion of the medium flows smoothly directly through the guide pipe, reducing resistance accumulation caused by a single noise reduction path. The two paths of flowing medium converge within the silencing cavity and then flow out from their respective interfaces. The first and second interfaces are directly connected via the guide pipe, which provides a direct and smooth main flow channel for the medium. By forming a dual-path flow distribution pattern with the silencing mechanism, the guide pipe guides a portion of the medium to flow rapidly within it, reducing resistance interference and detour distance when all the medium flows through the silencing mechanism. The flow guide pipe reduces the overall pressure loss of the flowing medium through its diversion effect, ensuring stable pressure and thus preventing a decrease in air conditioning cooling and heating efficiency and an increase in energy consumption. This air conditioning muffler breaks through the traditional installation direction limitations of mufflers, allowing both the first and second interfaces to serve as liquid inlets, improving its adaptability. The flow guide pipe in this muffler allows a portion of the flowing medium to flow directly through it; its diversion effect reduces pressure loss, ensuring stable cooling and heating performance of the air conditioner, thus balancing noise reduction and air conditioner performance.

[0007] According to the first aspect of the present invention, the air conditioner muffler includes a first muffler part, which is disposed near the first interface. The first muffler part is connected to one end of the guide pipe, and the first muffler part allows a flowing medium to pass through.

[0008] According to the first aspect of the present invention, the first silencing part is a first tapered tube, the wide end of the first tapered tube faces the first interface, the narrow end of the first tapered tube is connected to one end of the guide tube, and a plurality of silencing slits are provided on the tube wall of the first tapered tube, all of which are used to allow the flowing medium to flow through.

[0009] According to the first aspect of the present invention, in the air conditioner muffler, a plurality of muffler slits are radially distributed around the axis of the first conical tube, and the plurality of muffler slits are arranged in a circular pattern along the circumference of the wall of the first conical tube.

[0010] According to the first aspect of the present invention, the width of the sound-absorbing slit in the air conditioner muffler is 2mm.

[0011] According to the first aspect of the present invention, the air conditioner muffler includes a second muffler part, which is disposed near the second interface and connected to the other end of the guide pipe. The second muffler part allows a flowing medium to pass through it.

[0012] According to the first aspect of the present invention, the second silencing part is a second cone tube, the wide end of the second cone tube faces the second interface, the narrow end of the second cone tube is connected to the other end of the guide tube, and the tube wall of the second cone tube is provided with a plurality of first through holes, all of which are used for the flow of the fluid medium.

[0013] According to the first aspect of the present invention, the air conditioner muffler has a plurality of second through holes on the wall of the second tapered tube. The plurality of second through holes are all used for the flow of a fluid medium. The plurality of second through holes are all located outside the plurality of first through holes. The number of second through holes is greater than the number of first through holes.

[0014] According to the first aspect of the present invention, the diameter of both the first through hole and the second through hole in the air conditioner muffler is 2 mm.

[0015] An air conditioner according to a second aspect of the present invention includes an air conditioner muffler according to the first aspect of the present invention described above.

[0016] It has at least the following beneficial effects: This air conditioner has all the beneficial effects brought about by the above-mentioned air conditioner muffler, which will not be repeated here.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of an air conditioner muffler according to the first aspect embodiment of this utility model; Figure 2 This is a cross-sectional schematic diagram of an air conditioner muffler according to the first aspect embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of the first silencer, the second silencer, and the guide pipe in the air conditioner silencer according to the first aspect embodiment of this utility model; Icon labels: First silencing section 100; silencing seam 110; Second silencing part 200; First through hole 210; Second through hole 220; 300mm guide tube; Silencing cavity 400; first interface 410; second interface 420. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] refer to Figures 1 to 3 This utility model discloses an air conditioner muffler, including a muffler cavity 400, a muffler mechanism, and a flow guide pipe 300. The muffler cavity 400 is provided with a first interface 410 and a second interface 420 arranged opposite to each other; the muffler mechanism is disposed in the muffler cavity 400 and allows a flowing medium to pass through; the flow guide pipe 300 is disposed in the muffler cavity 400 and connected to the muffler mechanism, with its two ends corresponding to the first interface 410 and the second interface 420 respectively, and the flow guide pipe 300 is used to supply the flow of the flowing medium.

[0023] Understandably, the silencing cavity 400 is equipped with a first interface 410 and a second interface 420, allowing the flow medium to pass through. A guide pipe 300 is connected to the silencing mechanism, with its two ends corresponding to the first interface 410 and the second interface 420, respectively. When the flow medium flows, regardless of whether the first interface 410 or the second interface 420 is used as the inlet, a portion of the flow medium passes through the silencing mechanism, which uses its internal structure to cancel sound waves and attenuate energy, thus completing the core noise reduction. The other portion of the flow medium flows smoothly directly through the guide pipe 300, reducing resistance accumulation caused by a single noise reduction path. The two flow mediums converge within the silencing cavity 400 and then flow out from their corresponding interfaces. The first interface 410 and the second interface 420 can be directly connected through the guide pipe 300, which provides a direct and smooth main flow channel for the flow medium. The flow guide pipe 300, through a dual-path flow diversion mode with the silencer mechanism, guides a portion of the flowing medium into the flow guide pipe 300 for rapid flow, reducing resistance interference and detour distance when the entire flowing medium concentrates its flow through the silencer mechanism. The flow guide pipe 300 reduces the overall pressure loss of the flowing medium through its diversion effect, ensuring stable pressure and thus preventing a decrease in air conditioning cooling and heating efficiency and an increase in energy consumption. This air conditioning silencer breaks through the traditional silencer's installation direction limitations; both the first interface 410 and the second interface 420 can serve as liquid inlets, improving the silencer's adaptability. The flow guide pipe 300 in this air conditioning silencer allows a portion of the flowing medium to flow directly through it. The diversion effect of the flow guide pipe 300 reduces pressure loss of the flowing medium, ensuring stable cooling and heating performance of the air conditioner, thus balancing noise reduction and air conditioner performance.

[0024] It should be noted that when the first interface 410 serves as the liquid inlet, the second interface 420 serves as the liquid outlet; conversely, when the second interface 420 serves as the liquid inlet, the first interface 410 serves as the liquid outlet. In this embodiment of the invention, the flowing medium is refrigerant or air, etc.

[0025] refer to Figure 2 and Figure 3The silencing mechanism includes a first silencing section 100, which is located near the first interface 410 and connected to one end of the guide pipe 300. The first silencing section 100 allows the flow medium to pass through. The first silencing section 100 is a first tapered tube, with its wide end facing the first interface 410 and its narrow end connected to one end of the guide pipe 300. Multiple silencing slits 110 are provided on the wall of the first tapered tube, all for the flow of the flow medium. It can be understood that the wide end of the first tapered tube faces the first interface 410, and the narrow end connects to the guide pipe 300. The multiple silencing slits 110 on the wall of the first tapered tube allow the flow medium to pass through. When the flow medium enters from the first interface 410, it first contacts the wide end of the first tapered tube. Because the cross-sectional area of ​​the first tapered tube gradually narrows, the flow velocity of the flow medium changes gradually, which can buffer the pressure pulsation of the flow medium and disperse the sound wave energy. When the flowing medium passes through the noise-absorbing slit 110, the sound waves are reflected, diffracted, and interfered with in phase within the slit, and some noise is weakened due to phase cancellation. On the other hand, the flow-diverting effect of the noise-absorbing slit 110 makes the flow of the medium more uniform, reducing the secondary noise generated by the turbulence of the medium. Combined with the smooth flow guidance of the guide pipe 300, the noise reduction effect is further enhanced.

[0026] refer to Figure 2 and Figure 3 Multiple silencing slits 110 are radially distributed around the axis of the first conical tube, forming a circumferential arrangement along the circumference of the tube wall. This radial and circumferential arrangement of the slits 110 ensures that the flowing medium, after entering from the first interface 410, is evenly distributed to each slit 110, guaranteeing a more balanced flow and more sufficient contact with the first conical tube. Furthermore, the radial and circumferential arrangement makes the reflection, diffraction, and phase interference of sound waves at each slit 110 more symmetrical, enhancing the cancellation efficiency of sound waves from different directions, reducing noise reduction performance differences caused by uneven distribution of the slits 110, and further improving the noise reduction stability and uniformity of the first conical tube. In this embodiment, the width of the slit 110 is 2 mm, a size that optimizes the flow performance of the flowing medium while ensuring the silencing effect. When the flowing medium passes through the 2mm wide sound-absorbing slit 110, the structure of the sound-absorbing slit 110 can cause sound waves to be reflected, diffracted, and interfered with in phase. The interference effect generated by the phase difference can cancel out noise of a specific frequency, thus achieving effective noise reduction. At the same time, it can avoid the problem of excessive flow resistance of the flowing medium caused by the small width of the sound-absorbing slit 110. The 2mm wide sound-absorbing slit 110 can reduce the local pressure loss when the flowing medium passes through, ensure smooth flow of the flowing medium, and thus reduce the impact on the cooling and heating performance of the air conditioner.

[0027] refer to Figure 2 and Figure 3 The silencing mechanism includes a second silencing section 200, which is located near the second interface 420 and connected to the other end of the guide tube 300. The second silencing section 200 allows the flow medium to pass through. The second silencing section 200 is a second tapered tube, with its wide end facing the second interface 420 and its narrow end connected to the other end of the guide tube 300. The tube wall of the second tapered tube is provided with multiple first through holes 210, all of which are used to allow the flow medium to pass through. It is understandable that when the second interface 420 is used as the liquid inlet, after the flowing medium enters through the second interface 420, it first contacts the wide end of the second tapered tube. The cross-sectional area of ​​the second tapered tube gradually narrows, causing the flow pressure of the flowing medium to gradually converge, thereby buffering the initial pressure pulsation of the flowing medium and dispersing the sound wave energy. On the other hand, when the flowing medium flows through the multiple first through holes 210 on the tube wall of the second tapered tube, the sound wave is reflected, scattered, and dissipated within the first through holes 210, so that some noise is weakened due to phase interference or energy attenuation, thereby completing the noise reduction.

[0028] refer to Figure 2 and Figure 3 The second tapered tube has multiple second through holes 220 on its wall, all for the flow of the medium. These second through holes 220 are located outside multiple first through holes 210, with the number of second through holes 220 exceeding the number of first through holes 210. This creates a two-stage flow separation for the medium, with the more numerous second through holes 220 performing initial sound wave scattering and energy dissipation on most of the medium, while the fewer first through holes 210 provide secondary noise reduction for the remaining medium. This staged treatment of the medium improves noise reduction efficiency, and the greater number of second through holes 220 ensures sufficient flow rate and reduces pressure loss. Furthermore, the distribution of the first through holes 210 and second through holes 220 on both the inner and outer sides makes the flow of the medium more uniform, avoiding turbulent noise and thus balancing noise reduction with flow efficiency. In one embodiment of this utility model, the diameters of the first through hole 210 and the second through hole 220 are both 2 mm.

[0029] When the first interface 410 is the inlet and the second interface 420 is the outlet, the flowing medium enters the silencing cavity 400 through the first interface 410 and first contacts the wide end of the first tapered tube. Part of the flowing medium is diverted through multiple silencing slits 110 that are radially distributed and arranged circumferentially on the wall of the first tapered tube, completing initial noise reduction as it passes through the silencing slits 110. The remaining flowing medium directly enters the interior of the first tapered tube, flows into the guide tube 300 through the narrow end of the first tapered tube, and flows directly to the second interface 420 along the guide tube 300. The flowing medium flowing out through the silencing slits 110 flows in the silencing cavity 400. This part of the flowing medium passes through multiple first through holes 210 and multiple second through holes 220 on the inner and outer sides of the second tapered tube, and flows out from the second interface 420 together with the flowing medium flowing directly to the second interface 420 in the guide tube 300. Throughout the process, the silencing cavity 400 provides a closed space, and the first and second cone tubes achieve graded noise reduction through the silencing slit 110 and through holes. The guide tube 300 guides part of the flowing medium to flow directly to the second interface 420, so as to complete the efficient flow of the flowing medium and noise treatment in a coordinated manner.

[0030] When the second interface 420 is used as the inlet and the first interface 410 as the outlet, the flowing medium enters the silencing cavity 400 through the second interface 420 and first contacts the wide end of the second tapered tube. Because there are more second through holes 220 and they are located on the outside of the second tapered tube, most of the flowing medium is diverted through the second through holes 220. A small amount of flowing medium flows through the inner first through hole 210 to complete the initial noise reduction of the flowing medium. The remaining flowing medium directly enters the interior of the second tapered tube, flows into the guide pipe 300 through the narrow end of the second tapered tube, and flows directly to the first interface 410 along the guide pipe 300. The flowing medium flowing out through the first through hole 210 and the second through hole 220 flows in the silencing cavity 400 and passes through multiple silencing slits 110 on the first tapered tube for further noise reduction. It then flows out of the first interface 410 together with the flowing medium flowing directly to the first interface 410 in the guide pipe 300. During this process, the silencing cavity 400 provides a closed space, and the second and first cone tubes achieve graded noise reduction through the through holes and the silencing gap 110. The guide tube 300 guides part of the flowing medium to flow directly to the first interface 410, so as to complete the efficient flow of the flowing medium and noise treatment in a coordinated manner.

[0031] In this embodiment of the invention, the air conditioner muffler further includes a housing, the inner cavity of which is the muffler cavity 400. This invention also discloses an air conditioner, which includes the air conditioner muffler of this embodiment. The air conditioner further includes a compressor, a condenser, an evaporator, a fluid flow pipeline, a throttling device, a fan, and the air conditioner muffler. The compressor, condenser, evaporator, and throttling device are connected via the fluid flow pipeline, and the muffler is connected to the fluid flow pipeline. The compressor, condenser, evaporator, fluid flow pipeline, throttling device, and fan are all common components in the field of air conditioners and will not be described further here.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An air conditioner muffler, characterized in that, include: The silencing cavity is provided with a first interface and a second interface that are positioned opposite to each other. A noise reduction mechanism is provided inside the noise reduction cavity, and the noise reduction mechanism allows a flowing medium to pass through; A flow guide tube is disposed inside the silencing cavity. The flow guide tube is connected to the silencing mechanism. The two ends of the flow guide tube are respectively provided with the first interface and the second interface. The flow guide tube is used to supply the flow medium.

2. The air conditioner muffler according to claim 1, characterized in that: The silencing mechanism includes a first silencing part, which is disposed near the first interface and connected to one end of the guide tube. The first silencing part allows the flowing medium to pass through.

3. The air conditioner muffler according to claim 2, characterized in that: The first silencing part is a first tapered tube, with the wide end of the first tapered tube facing the first interface, and the narrow end of the first tapered tube connected to one end of the guide tube. The tube wall of the first tapered tube is provided with multiple silencing slits, all of which are used to allow the flowing medium to flow through.

4. The air conditioner muffler according to claim 3, characterized in that: The plurality of noise-absorbing slits are radially distributed around the axis of the first conical tube, and the plurality of noise-absorbing slits are arranged in a circular pattern along the circumference of the wall of the first conical tube.

5. The air conditioner muffler according to claim 4, characterized in that: The width of the sound-absorbing joint is 2mm.

6. The air conditioner muffler according to claim 1, characterized in that: The silencing mechanism includes a second silencing section, which is located near the second interface and connected to the other end of the guide tube. The second silencing section allows the flowing medium to pass through.

7. The air conditioner muffler according to claim 6, characterized in that: The second silencing part is a second tapered tube, with the wide end of the second tapered tube facing the second interface, and the narrow end of the second tapered tube connected to the other end of the guide tube. The tube wall of the second tapered tube is provided with a plurality of first through holes, all of which are used to allow the flowing medium to flow through.

8. The air conditioner muffler according to claim 7, characterized in that: The second tapered tube has multiple second through holes on its wall. All of the second through holes are used to allow the flowing medium to pass through. All of the second through holes are located outside the multiple first through holes. The number of second through holes is greater than the number of first through holes.

9. The air conditioner muffler according to claim 8, characterized in that: The diameters of both the first through hole and the second through hole are 2 mm.

10. An air conditioner, characterized in that, Includes the air conditioner muffler as described in any one of claims 1 to 9.

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