CN213578233U - Filtering muffler and air conditioner - Google Patents
Filtering muffler and air conditioner Download PDFInfo
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- CN213578233U CN213578233U CN202022176528.8U CN202022176528U CN213578233U CN 213578233 U CN213578233 U CN 213578233U CN 202022176528 U CN202022176528 U CN 202022176528U CN 213578233 U CN213578233 U CN 213578233U
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- filter
- inner pipe
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Abstract
The utility model relates to an air conditioner technical field discloses a filter muffler and air conditioner, this filter muffler, include: the device comprises a shell, a plurality of connecting pipes and a plurality of connecting pipes, wherein necking connecting ports are formed at two ends of the shell, the shell also comprises an inner pipeline with two closed ends, and a plurality of through holes are formed in the side wall of the inner pipeline; an annular disc sleeved on the inner pipeline is arranged in the shell; a filter screen is mounted near the end of the inner pipe. The embodiment of the utility model provides a filter muffler is through setting up suitable cross sectional area ratio and expansion chamber length to combine the filter screen to use, thereby effectively eliminate the low frequency noise in the air current, in order to realize filtering the purpose of making an uproar that falls.
Description
Technical Field
The utility model relates to an air conditioner technical field especially relates to a filter muffler and air conditioner.
Background
Along with more and more frequent use of air conditioners in working and living, complaints of people on noise of the air conditioners are more and more, and particularly, complaints of users on noise generated by indoor units are particularly concentrated in a refrigerating season. The noise generated by the indoor unit is partly caused by the flowing sound of the refrigerant when the refrigerant flows in the refrigerant channel. At present, regarding the mechanism of the generation of the refrigerant flowing sound, the industry generally considers that the generation of the refrigerant flowing sound has an important relation with the flow state of the refrigerant, and the reason is that the refrigerant flowing sound is easily generated when the refrigerant flows in a gas-liquid two-phase state.
In order to reduce the intensity of noise and improve the comfort of the air conditioner, a common method is to add a silencer on the inlet/outlet of the compressor or on the coil of the outdoor unit of the air conditioner. The silencer is to reflect and interfere pulse sound waves generated by the exhaust of the compressor by means of sudden expansion and contraction of the pipeline interface, and the like, so as to achieve the aim of silencing. The expansion type silencer is generally based on a single expansion pipe, multiple expansion pipes are added in the later development and evolution for serial silencing, although the silencing effect is improved, the cost is increased due to the complex structure and cannot be widely used; the single-section expansion pipe has simple structure and low cost, but the silencing effect is not ideal.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a filter muffler and air conditioner for solve the current not good problem of filter muffler's noise cancelling effect.
In a first aspect, an embodiment of the present invention provides a filter muffler, including: the device comprises a shell, a plurality of connecting pipes and a plurality of connecting pipes, wherein necking connecting ports are formed at two ends of the shell, the shell also comprises an inner pipeline with two closed ends, and a plurality of through holes are formed in the side wall of the inner pipeline; an annular disc sleeved on the inner pipeline is arranged in the shell; a filter screen is mounted near the end of the inner pipe.
On the basis of the technical scheme, the filter screen is fixed in the shell through the rolling groove on the inner wall of the shell.
On the basis of the technical scheme, a silencing piece in an annular columnar structure is arranged at the position close to the head end of the inner pipeline.
On the basis of the technical scheme, the noise elimination piece is made of porous ceramic materials.
On the basis of the technical scheme, the porous ceramic material comprises one of alumina ceramic powder, zirconia ceramic powder, titanium oxide ceramic powder and silicon carbide ceramic powder.
On the basis of the technical scheme, the sizes of the through holes which are sequentially arranged along the axial direction of the inner pipeline are sequentially reduced.
On the basis of the technical scheme, the through holes sequentially arranged along the circumferential direction of the inner pipeline have the same size.
On the basis of the technical scheme, the annular disc is installed inside the shell in a sliding mode.
On the basis of the technical scheme, the inner wall of the shell and/or the inner pipeline is/are provided with silencing cotton.
In a second aspect, an embodiment of the present invention provides an air conditioner, including the above technical solution the filter muffler.
The embodiment of the utility model provides a filter muffler and air conditioner, through the assembly of first annular disc and interior pipeline, regard the upper half of interior pipeline as the air inlet region, the lower half of interior pipeline is as the region of giving vent to anger, the air current of the inside of entering casing via the import of casing, get into the inside of interior pipeline through the through-hole that is located annular disc top, and the air current can change the direction of motion of air current after touching the blind end of interior pipeline, the air current of the inside of getting into the interior pipeline flows by the through-hole that is located annular disc below, through changing the cross-sectional area ratio many times, thereby realize eliminating the noise; the air flow flowing out from the through hole under the annular disc passes through the filter screen and then flows out from the outlet of the casing, thus entering the throttling device such as an expansion valve. The embodiment of the utility model provides a filter muffler is through setting up suitable cross sectional area ratio and expansion chamber length to combine the filter screen to use, thereby effectively eliminate the low frequency noise in the air current, in order to realize filtering the purpose of making an uproar that falls.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a filter muffler according to an embodiment of the present invention;
FIG. 2 is a schematic view of the working state of FIG. 1;
fig. 3 is a schematic structural view of a muffler component according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a filter screen according to an embodiment of the present invention.
Reference numerals:
1. a housing; 2. an inner conduit; 3. an annular disc; 4. a through hole; 5. a filter screen; 6. a sound attenuation member.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
When the bubbles contained in the two-phase flow are too large, the flowing sound of the refrigerant is very obvious, and when the bubbles are smaller or have no bubbles, the flowing sound of the refrigerant is weakened or disappears.
The noise eliminator can be used in combination with a filter to form a filtering silencer with filtering and noise reducing functions, a filter screen in the filtering silencer filters impurities in the refrigerant, and the noise eliminator in the filtering silencer enables bubbles in the refrigerant to be broken and reduced and then enters a throttling device such as an expansion valve. Therefore, the silencing piece with a simple structure is arranged in the filter, the filtering and silencing effects are realized, the number of air conditioner parts is reduced, and the assembly efficiency of the whole machine can be effectively improved.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is the utility model discloses a filter muffler's of embodiment structure schematic diagram, as shown in fig. 1, the utility model discloses filter muffler, include: the filtering silencer comprises a shell 1, wherein necking connectors are formed at two ends of the shell 1, the filtering silencer further comprises an inner pipeline 2 with two closed ends, and a plurality of through holes 4 are formed in the side wall of the inner pipeline 2; an annular disc 3 sleeved on the inner pipeline 2 is arranged in the shell 1; wherein, the central axis of the inner pipeline 2 coincides with the central axis of the shell 1, and the annular disc 3 is horizontally arranged in the shell 1;
a filter screen 5 is installed near the end of the inner pipe 2, i.e., the filter screen 5 is installed on the inner wall of the housing 1 near the end of the inner pipe 2. Wherein both ends of the inner pipe 2 are named as a head end and a tail end, respectively, along a refrigerant circulating direction.
It should be noted that, the casing 1 may be a tubular structure, and two ends of the casing 1 are used for connecting a refrigeration pipeline of an air conditioner to allow a refrigerant to flow in the expansion chamber, and impedance changes are caused in a sound propagation process through abrupt changes of a pipeline section to generate reflection and interference of sound energy, so that the sound energy radiated outwards by the filter muffler is reduced, and a purpose of sound elimination is achieved.
It is understood that the sound-deadening performance of the filter muffler depends mainly on the expansion ratio and the expansion chamber length. The expansion ratio mainly depends on the section area ratio, and if the section area ratio of the filter muffler is adjustable, the effect of eliminating different low and medium frequency noises can be achieved.
For this purpose, the adjustment of the length of the expansion chamber can be achieved by varying the length of the inner conduit 2; the adjustment of the expansion ratio is achieved by the inner diameter of the inner pipe 2 and the size of the through-hole 4 provided in the inner pipe 2.
It should be noted that, in order to reduce the weight of the filter muffler, the annular disc 3 may be made of a plastic material, and the inner diameter of the annular disc 3 is adapted to the outer diameter of the inner pipe 2. The inner pipe 2 is detachably connected to the annular disc 3. Wherein, the inner pipe 2 and the annular disc 3 can be fixed together by adopting a snap connection mode. The annular disc 3 is located at the middle portion of the inner pipe 2, and the annular disc 3 is located at the middle portion of the housing 1. Wherein, the shell 1 can be made of stainless steel, iron or copper material.
The filter screen 5 is used for filtering impurities in the refrigerant.
In the embodiment of the present invention, as shown in fig. 2, by assembling the annular disc 3 and the inner pipe 2, the upper part of the inner pipe 2 is used as an air inlet region, the lower part of the inner pipe 2 is used as an air outlet region, the air flow entering the inside of the casing 1 through the inlet of the casing 1 enters the inside of the inner pipe 2 through the through hole 4 located above the annular disc 3, and the air flow contacts the closed end of the inner pipe 2 to change the moving direction of the air flow, the air flow entering the inside of the inner pipe 2 flows out through the through hole 4 located below the annular disc 3, and the cross-sectional area ratio is changed for many times, so as to realize noise elimination; the air flow flowing out of the through holes 4 located below the annular disk 3 passes through the filter screen 5, and then flows out through the outlet of the housing 1 to enter a throttle device such as an expansion valve. The embodiment of the utility model provides a filter muffler is through setting up suitable cross sectional area ratio and expansion chamber length to combine the filter screen to use, thereby effectively eliminate the low frequency noise in the air current, in order to realize filtering the purpose of making an uproar that falls.
In addition to the above embodiments, as shown in fig. 4, the filter screen 5 is fixed inside the housing 1 by a rolling groove on the inner wall of the housing 1.
It should be noted that, one end wall of the housing 1 is provided with a rolling groove recessed inside the housing 1. Wherein, the rolling groove can be recessed into the shell 1 along the ring direction of the shell 1.
It will be appreciated that the filter screen 5 is held in compression by two roller slots in the housing 1. The mode of fixing the filter screen 5 by using the rolling groove is simple and firm and is easy to process and assemble.
In addition to the above embodiment, as shown in fig. 3, a muffler 6 having a ring-column structure is mounted near the head end of the inner pipe 2. The baffle plate is horizontally arranged and is of a disc-shaped structure, and a plurality of through holes are formed in the baffle plate and are arranged along the circumferential direction of the baffle plate.
It should be noted that the muffler 6 can be mounted on the inner wall of the housing 1 in a snap-fit manner, and is close to the head end of the inner pipe 2.
It will be understood that the silencing piece 6 is made of a porous ceramic material. Wherein the porous ceramic material comprises one of alumina ceramic powder, zirconia ceramic powder, titanium oxide ceramic powder and silicon carbide ceramic powder.
The embodiment of the utility model provides an in, be formed with the small hole of a large amount of inside and outside intercommunications on noise elimination piece 6, when the sound wave incides in noise elimination piece 6, will arouse the vibration of air in the hole, because the viscous drag of air, the friction and the heat conduction effect of air and pore wall, sound energy is absorbed and is converted into heat energy, and then makes the sound wave at the rapid decay of noise elimination piece 6, plays good noise cancelling effect to simple process for the preparation, greatly reduced the cost of manufacture.
On the basis of the above-described embodiment, the sizes of the plurality of through-holes 4 arranged in order in the axial direction of the inner pipe 2 are reduced in order.
It is noted that the sizes of the plurality of through holes 4 on the inner pipe 2 are reduced in order along the height direction of the inner pipe 2. Wherein, through setting up the through-hole 4 of equidimension not in order to satisfy the amortization demand of the sound wave of different frequencies to a plurality of through-holes 4 that are located same height on interior pipeline 2 are the same in size.
It will be understood that the through-holes 4 above the annular disc 3 follow the following law: the sizes of the plurality of through-holes 4 are sequentially reduced along the height direction of the inner pipe 2; the through-holes 4 located below the annular disc 3 follow the following law: the sizes of the plurality of through-holes 4 increase in order along the height direction of the inner pipe 2.
On the basis of the above embodiment, the annular disc 3 is slidably mounted inside the housing 1.
It should be noted that, in order to realize the movable mounting of the annular disc 3, a plurality of first mounting holes may be sequentially and uniformly formed in the housing 1 along the axial direction of the housing 1, and in match with the first mounting holes, a second mounting hole may be formed in the annular disc 3 along the radial direction of the annular disc 3, and the annular disc 3 and the housing 1 may be connected by sequentially passing through the first mounting holes and the second mounting holes via pins.
On the basis of the above-described embodiment, sound-deadening cotton is mounted on the inner wall of the casing 1 and/or the inner pipe 2.
It should be noted that the high-frequency noise can be absorbed by the gaps on the silencing cotton, and after continuous emission and absorption, the noise in the air flow can be completely eliminated. Wherein, the inner pipeline 2 is a copper pipe or a copper-plated pipe.
In the embodiment of the present invention, the air flow entering the interior of the housing 1 through the inlet of the housing 1 first enters the noise elimination member 6, after preliminary noise elimination, the air flow enters the interior of the inner pipe 2 through the through hole 4 located above the annular disc 3, and the air flow contacts the closed end of the inner pipe 2 to change the moving direction of the air flow, the air flow entering the interior of the inner pipe 2 flows out through the through hole 4 located below the annular disc 3, and the cross-sectional area ratio is changed for many times, so that noise elimination is realized; the air flow flowing out of the through holes 4 located below the annular disk 3 passes through the filter screen 5, and then flows out through the outlet of the housing 1 to enter a throttle device such as an expansion valve. The embodiment of the utility model provides a filter muffler is through setting up suitable cross sectional area ratio and expansion chamber length to combine noise elimination piece 6 and filter screen to use, thereby eliminate the low frequency noise in the air current more high-efficiently, with the purpose of realizing filtering and falling the noise.
The embodiment of the utility model provides a still provide an air conditioner, including the filtering muffler that each above-mentioned embodiment provided.
The embodiment of the utility model provides an in, this filter muffler of internally mounted at the air conditioner, through this filter muffler's noise cancelling effect, can improve the silence level of this air conditioner, and then improved the travelling comfort that the user used.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022176528.8U CN213578233U (en) | 2020-09-28 | 2020-09-28 | Filtering muffler and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022176528.8U CN213578233U (en) | 2020-09-28 | 2020-09-28 | Filtering muffler and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213578233U true CN213578233U (en) | 2021-06-29 |
Family
ID=76579250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022176528.8U Active CN213578233U (en) | 2020-09-28 | 2020-09-28 | Filtering muffler and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213578233U (en) |
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2020
- 2020-09-28 CN CN202022176528.8U patent/CN213578233U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20260108 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Country or region after: China Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Country or region before: China Patentee before: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. Patentee before: Haier Smart Home Co., Ltd. |