CN213578231U - Filtering muffler and air conditioner - Google Patents
Filtering muffler and air conditioner Download PDFInfo
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- CN213578231U CN213578231U CN202022171962.7U CN202022171962U CN213578231U CN 213578231 U CN213578231 U CN 213578231U CN 202022171962 U CN202022171962 U CN 202022171962U CN 213578231 U CN213578231 U CN 213578231U
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Abstract
本实用新型涉及空调器技术领域，公开了一种过滤消声器及空调器，该过滤消声器，包括：壳体，所述壳体的两端构造有颈缩连接口，所述壳体的内部安装有至少一个环形盘，一个所述环形盘对应套设在一根内管道上；所述环形盘上开设有通孔，所述内管道的轴线方向与所述壳体的轴线方向相一致；在靠近所述内管道的末端处安装有过滤网。本实用新型实施例提供的过滤消声器，通过设置合适的截面面积比以及扩张室长度，并结合过滤网使用，从而有效消除气流中的低频噪音，以实现过滤降噪的目的。
The utility model relates to the technical field of air conditioners, and discloses a filter muffler and an air conditioner. The filter muffler comprises: a casing; both ends of the casing are configured with necking connection ports; At least one annular disk, one of the annular disks is correspondingly sleeved on an inner pipe; the annular disk is provided with a through hole, and the axial direction of the inner pipe is consistent with the axial direction of the casing; A filter screen is installed at the end of the inner pipe. The filter muffler provided by the embodiment of the present invention can effectively eliminate the low-frequency noise in the air flow by setting the appropriate cross-sectional area ratio and the length of the expansion chamber, and using it in combination with the filter screen, so as to achieve the purpose of filtering and noise reduction.
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 the field of household air conditioner manufacturing, in order to improve energy efficiency, an air conditioner applies a frequency conversion technology. The frequency conversion air conditioner adjusts the running frequency of the compressor according to the load of a room, and meets different load requirements. When the inverter compressor operates at different frequencies, different noises may be generated, and the noises are transmitted to the indoor side through the flowing of the refrigerant, thereby influencing the rest or study of users at the indoor side. In order to eliminate noise, a muffler is often added to the compressor piping. The existing silencer can only eliminate the noise with the maximum noise elimination amount of one frequency, so that the existing silencer can not eliminate different noises generated by a frequency conversion machine due to different working frequencies.
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, at least one annular disc is arranged in the shell, and one annular disc is correspondingly sleeved on one inner pipeline; the annular disc is provided with a through hole, and the axial direction of the inner pipeline is consistent with the axial direction of 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 annular disc is sequentially and slidably mounted in the axis direction of the shell, the annular disc is multiple, and the through holes in the annular disc are sequentially reduced along the sound propagation direction.
On the basis of the technical scheme, the through holes are distributed along the circumferential direction of the annular disc, and the central axes of the through holes on the annular disc are not coincident.
On the basis of the technical scheme, the through holes in the annular discs are sequentially distributed along the direction towards the inner pipeline.
On the basis of the technical scheme, the inner pipeline and the annular disc are integrally arranged.
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, when the air current is less, the air current of entering the inside of casing through the import of casing can directly get into the inside of interior pipeline from the inside of casing, through changing the cross-sectional area ratio, thereby realize eliminating the noise; when the airflow is large, a part of the airflow enters the inner pipeline from the inside of the shell, so that the cross-sectional area ratio is changed, and the noise elimination is realized; the rest part of the air flow flows through the through holes on the annular disc from the inside of the shell, and the noise is eliminated by changing the area ratio of the cross sections; the air flow passing through the through hole and/or the inner pipe finally passes through the filter screen and then flows out through the outlet of the housing, thereby entering a 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 diagram of an annular disc 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 annular disc; 3. a through hole; 4. an inner conduit; 5. and (4) a filter screen.
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 device comprises a shell 1, wherein necking connecting ports are formed at two ends of the shell 1, at least one annular disc 2 is arranged in the shell 1, and one annular disc 2 is correspondingly sleeved on an inner pipeline 4; the annular disc 2 is provided with a through hole 3, the axial direction of the inner pipeline 4 is consistent with the axial direction of the shell 1, and the annular disc 2 is horizontally arranged in the shell 1;
a filter screen 5 is installed near the end of the inner pipe 4, i.e., the filter screen 5 is installed on the inner wall of the housing 1 near the end of the inner pipe 4. Wherein, along the refrigerant circulating direction, both ends of the inner pipe 4 are named as a head end and a tail end, respectively.
It should be noted that the inner pipe 4 located inside the housing 1 may be a telescopic pipe, and the length of the inner pipe 4 is selected according to the actual working condition, and is not specifically required here. The shell 1 can be in a tubular structure, two ends of the shell 1 are used for being communicated with a refrigeration pipeline of an air conditioner to enable refrigerant to flow in the expansion chamber, impedance is changed in the sound transmission process through sudden change of the section of the pipeline to generate reflection and interference of sound energy, and therefore the sound energy radiated outwards by the filtering silencer is reduced, and the purpose of silencing is achieved.
It should be noted that the annular disc 2 may be configured to have a certain thickness, that is, the length of the through hole 3 is changed, so as to improve the contact time between the air flow and the inner wall of the through hole 3. Wherein, the shell 1 can be made of stainless steel, iron or copper material.
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 cross-sectional area ratio, so that according to the characteristic, if the cross-sectional area ratio of the filter muffler is adjustable, the effect of eliminating different medium and low 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 4; the adjustment of the expansion ratio is achieved by the arrangement of the inner diameter of the inner pipe 4 and the through-holes 3 provided in the annular disc 2.
It should be noted that, in order to reduce the weight of the filter muffler, the annular disc 2 may be made of a plastic material, and the inner diameter of the annular disc 2 is adapted to the outer diameter of the inner pipe 4. The inner pipe 4 is integrally connected to the annular disc 2. The annular disc 2 is located in the middle of the inner pipe 4. 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, when the airflow is small, the airflow entering the inside of the casing 1 through the inlet of the casing 1 can directly enter the inside of the inner pipe 4 from the inside of the casing 1, and the noise elimination is realized by changing the cross-sectional area ratio; when the airflow is large, a part of the airflow enters the inner pipeline 4 from the inside of the shell 1, and the cross-sectional area ratio is changed, so that the noise elimination is realized; the rest part of the air flow flows through the through holes 3 on the annular disc 2 from the inside of the shell 1, and the noise is eliminated by changing the area ratio of the cross sections; the air flow passing through the through-hole 3 and/or the inner pipe 4 finally 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.
On the basis of the above embodiment, a muffler having a ring-shaped columnar structure is installed near the head end of the inner pipe 4. The inner wall of the noise elimination piece is hung with a baffle which is horizontally arranged and has a disc-shaped structure, and the baffle is provided with a plurality of through holes which are arranged along the circumferential direction of the baffle.
It should be noted that the muffler may be mounted on the inner wall of the housing 1 in a snap-fit manner, and near the head end of the inner pipe 4.
It will be appreciated that the muffler element 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 the noise elimination piece, when the sound wave incides in the noise elimination piece, 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, the sound energy is absorbed and is converted into heat energy, and then makes the sound wave play good noise cancelling effect at the rapid decay of noise elimination piece to simple process for the preparation, greatly reduced the cost of manufacture.
In addition to the above embodiment, a plurality of annular disks 2 are slidably mounted in order in the axial direction of the housing 1. Wherein the sound-damping member is located upstream of the annular disc 2.
It should be noted that, in order to realize the movable mounting of the annular disc 2, 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 2 along the radial direction of the annular disc 2, and the annular disc 2 and the housing 1 may be connected by sequentially passing through the first mounting holes and the second mounting holes via pins.
It can be understood that by changing the mounting position of the annular disk 2, the contact area of the air flow is increased before the air flow passes through the through-holes 3, and the noise reduction effect is improved. And, the effect of sound attenuation is further enhanced by mounting a plurality of the annular disks 2.
On the basis of the above-described embodiment, the plurality of through holes 3 in the plurality of annular disks 2 are sequentially reduced in the sound propagation direction.
In the present embodiment, two annular disks 2 are mounted inside the housing 1 as an example. An inner pipe 4 is arranged on the upper annular disc 2, another inner pipe 4 is arranged on the lower annular disc 2, and the size of the through hole 3 on the upper annular disc 2 is larger than that of the through hole 3 on the lower annular disc 2. The two inner pipes 4 are arranged at a distance from each other and the two inner pipes 4 are arranged coaxially. Wherein, the through hole 3 can be a circular hole or an elliptical hole.
It should be noted that the size of the through hole 3 on the upper annular disc 2 is larger than that of the through hole 3 on the lower annular disc 2, and the inherent frequencies of the two are different, so that sound waves with different frequencies can be eliminated in sequence, and the air flow is ensured to be discharged quietly after flowing out.
On the basis of the above embodiment, as shown in fig. 3, the plurality of through holes 3 are arranged in the circumferential direction of the annular disk 2, and the central axes of the plurality of through holes 3 on the plurality of annular disks 2 do not coincide. Wherein the plurality of through holes 3 on the plurality of annular discs 2 may be arranged in sequence in a direction towards the inner pipe 4.
Note that a plurality of through holes 3 are uniformly arranged in the annular disk 2 in the circumferential direction of the annular disk 2. The distance between the center line of the through hole 3 on the upper annular disk 2 and the central axis of the annular disk 2 is D1, and the distance between the center line of the through hole 3 on the lower annular disk 2 and the central axis of the annular disk 2 is D2, when D1 is greater than D2. And D1 is greater than D2, so that the movement path of the airflow is increased, and the silencing effect is improved. The annular disc 2 located above and the annular disc 2 located below are two annular discs 2 arranged adjacently.
On the basis of the above embodiment, the plurality of inner pipes 4 on the plurality of annular disks 2 are communicated in sequence.
It should be noted that two adjacent inner pipes 4 can be connected in a clamping manner, and the plurality of inner pipes 4 are sequentially communicated to increase the circulation time of the air flow in the inner pipes 4, so that the noise reduction effect is improved after the air flow is contacted with the inner wall of the inner pipe 4 for multiple times.
On the basis of the above embodiment, the outlet end of the inner pipe 4 is configured with a necked-down connection port and the inner pipe 4 is a copper pipe or a plated copper pipe.
It should be noted that, the airflow enters the interior of the inner pipe 4 from the interior of the housing 1, and the first noise elimination is realized by changing the cross-sectional area ratio; the air flow enters the interior of the shell 1 from the interior of the inner pipeline 4, and the second noise elimination is realized by changing the cross-sectional area ratio.
On the basis of the above-described embodiment, the sound-deadening cotton is mounted on the inner wall of the casing 1 and/or the inner pipe 4.
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.
In the embodiment of the utility model, the air flow entering the interior of the shell 1 through the inlet of the shell 1 firstly enters the noise elimination part, after preliminary noise elimination, when the air flow is small, the air flow directly enters the interiors of the two inner pipelines 4 from the interior of the shell 1 in sequence, and the noise elimination is realized by changing the cross-sectional area ratio; the air flow passing through the inner pipe 4 finally passes through the filter screen 5 and then flows out through the outlet of the shell 1, so as to enter a throttling device such as an expansion valve;
when the airflow is large, a part of the airflow enters the inner pipeline 4 positioned above from the inside of the shell 1, and the cross-sectional area ratio is changed, so that the first noise elimination is realized; the rest part of the air flow flows through the through holes 3 on the annular disc 2 positioned above from the inside of the shell 1, and the first auxiliary noise elimination is realized by changing the area ratio of the cross sections; the airflow enters the inner pipeline 4 positioned below from the inner part of the inner pipeline 4 positioned above, so that the cross-sectional area ratio is changed, and the secondary noise elimination is realized; the airflow flows out from the through hole 3 on the annular disc 2 positioned above and then passes through the through hole 3 on the annular disc 2 positioned below again, and the secondary auxiliary noise elimination is realized by changing the area ratio of the cross sections; the air flow passing through the through-hole 3 and/or the inner pipe 4 finally 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.
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)
1. A filter muffler comprising: the device comprises a shell, wherein necking connecting ports are formed at two ends of the shell, and the device is characterized in that at least one annular disc is arranged in the shell, and one annular disc is correspondingly sleeved on one inner pipeline; the annular disc is provided with a through hole, and the axial direction of the inner pipeline is consistent with the axial direction of the shell; a filter screen is mounted near the end of the inner pipe.
2. The filter muffler of claim 1, wherein the filter screen is secured to the interior of the housing by a roller slot on the inner wall of the housing.
3. The filter muffler according to claim 1 or 2, wherein a muffler member having an annular columnar structure is installed near the head end of the inner pipe.
4. The filter muffler of claim 3, wherein the muffler member is made of a porous ceramic material.
5. The filter muffler according to claim 1 or 2, wherein a plurality of the annular disks are slidably mounted in this order in the axial direction of the housing, and a plurality of the through holes in the plurality of the annular disks decrease in this order in the sound propagation direction.
6. The filter muffler according to claim 5, wherein a plurality of said through holes are arranged in a circumferential direction of said annular disc, and central axes of a plurality of said through holes on a plurality of said annular discs are not coincident.
7. The filter muffler according to claim 6, wherein a plurality of said through holes of a plurality of said annular disks are arranged in sequence in a direction toward said inner pipe.
8. The filter-muffler according to claim 1 or 2, wherein the inner pipe is provided integrally with the annular disc.
9. The filter muffler according to claim 1 or 2, wherein a silencing cotton is mounted on an inner wall of the housing and/or the inner pipe.
10. An air conditioner characterized by comprising the filter muffler of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022171962.7U CN213578231U (en) | 2020-09-28 | 2020-09-28 | Filtering muffler and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022171962.7U CN213578231U (en) | 2020-09-28 | 2020-09-28 | Filtering muffler and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN213578231U true CN213578231U (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022171962.7U Active CN213578231U (en) | 2020-09-28 | 2020-09-28 | Filtering muffler and air conditioner |
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| Country | Link |
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| CN (1) | CN213578231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336708A (en) * | 2021-12-23 | 2023-06-27 | 上海海立电器有限公司 | Accumulators and Compressors |
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2020
- 2020-09-28 CN CN202022171962.7U patent/CN213578231U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336708A (en) * | 2021-12-23 | 2023-06-27 | 上海海立电器有限公司 | Accumulators and Compressors |
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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. |