CN214837104U - Silencing cover and scroll compressor comprising same - Google Patents
Silencing cover and scroll compressor comprising same Download PDFInfo
- Publication number
- CN214837104U CN214837104U CN202120795502.3U CN202120795502U CN214837104U CN 214837104 U CN214837104 U CN 214837104U CN 202120795502 U CN202120795502 U CN 202120795502U CN 214837104 U CN214837104 U CN 214837104U
- Authority
- CN
- China
- Prior art keywords
- silencing
- muffling
- curved surface
- cover
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a silencing cover and a scroll compressor comprising the silencing cover, wherein the silencing cover is provided with a silencing cavity which is communicated with an air outlet of the silencing cover; a silencing structure body for forming two zigzag silencing air channels is arranged in the silencing cavity. The utility model discloses an improve amortization cover inner structure, add tortuous amortization air current way, realize the manifold increase diffusion repeatedly of air current and change its flow direction to improve the noise cancelling effect.
Description
Technical Field
The utility model belongs to the technical field of the compressor, concretely relates to amortization cover reaches scroll compressor including this amortization cover.
Background
Can produce the air current noise during scroll compressor operation, intermetallic contact noise and electromagnetic noise, the too big customer experience that can the greatly reduced of noise. The compressor exhaust noise has wide influence frequency range and large contribution to the total noise value of the whole compressor, and is a core noise source of the scroll compressor.
The common scroll compressor silencer carbon steel structure, the wall thickness is thinner, through the amortization of aperture expanding mode, the noise cancelling effect is general.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a amortization cover reaches scroll compressor including this amortization cover.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
on one hand, the utility model discloses a silencing cover, which is provided with a silencing cavity, and the silencing cavity is communicated with an air outlet of the silencing cover;
a silencing structure body for forming two zigzag silencing air channels is arranged in the silencing cavity.
The utility model discloses an improve amortization cover inner structure, add tortuous amortization air current way, realize the manifold increase diffusion repeatedly of air current and change its flow direction to improve the noise cancelling effect.
On the basis of the technical scheme, the following improvements can be made:
preferably, the sound attenuation structure is an annular structure with openings and/or through holes;
the opening or the through hole is arranged on the position, opposite to the exhaust port of the silencing cover, on the silencing structure body;
two zigzag noise reduction airflow channels are formed between the outer wall of the noise reduction structure body and the inner wall of the noise reduction cavity.
By adopting the preferable scheme, the structure is simple, the middle area of the silencing structure body is communicated with the exhaust port of the scroll compressor, and the opening or the through hole of the annular structure body forms the air inlet of the silencing air flow channel.
Preferably, the flow area of the opening and/or the through hole is smaller than the flow area of the exhaust port of the muffling enclosure.
By adopting the preferable scheme, the noise reduction effect is better.
As a preferred scheme, a plurality of smooth inner ring curved surface bulges are arranged on the outer wall of the silencing structure body, and a plurality of smooth outer ring curved surface bulges are arranged on the inner wall of the silencing cavity;
and any outer ring curved surface bulge is arranged between two adjacent inner ring curved surface bulges.
By adopting the preferable scheme, the zigzag noise reduction airflow channel is formed, and the surfaces of the inner ring curved surface protrusions and the outer ring curved surface protrusions are smooth curved surfaces, so that noise reduction is facilitated. Moreover, the design of the bulge is adopted, so that the wall thickness can be effectively increased, and the mechanical strength of the silencing cover and the silencing structure body is improved.
As the preferred scheme, a plurality of threaded holes used for being fixedly connected with the base fixing plate are arranged on the plurality of inner ring curved surface bulges.
By adopting the preferable scheme, the installation and fixation are more convenient on the premise of not influencing the silencing effect.
As a preferred scheme, along the flowing direction of the gas in the silencing gas flow channel, the shortest distance from the next inner ring curved surface bulge to the inner wall of the silencing cavity is greater than the shortest distance from the previous inner ring curved surface bulge to the inner wall of the silencing cavity;
and along the flowing direction of the gas in the silencing gas flow channel, the shortest distance from the next outer ring curved surface bulge to the outer wall of the silencing structure body is greater than the shortest distance from the previous outer ring curved surface bulge to the outer wall of the silencing structure body.
By adopting the preferable scheme, the noise reduction effect is optimal.
Preferably, along the flowing direction of the gas in the silencing gas flow channel, the length of the projection profile of the next outer ring curved surface bulge on the bottom surface of the silencing cover is smaller than the length of the projection profile of the previous outer ring curved surface bulge on the bottom surface of the silencing cover.
By adopting the preferable scheme, the noise reduction effect is optimal.
Preferably, the two zigzag noise reduction air flow channels have the same structure.
By adopting the preferable scheme, the production and installation of the silencing cover and the silencing structure body are facilitated.
Preferably, the inner wall and/or the outer wall of the sound attenuation structure is a smooth curved surface;
and/or the inner wall of the silencing cover is a smooth curved surface.
By adopting the preferable scheme, the noise reduction effect is good.
On the other hand, the utility model also discloses a scroll compressor, include: any one of the silencing covers is arranged at the exhaust port of the scroll compressor through the base fixing plate.
The utility model relates to a scroll compressor, it is when exhausting, through two tortuous amortization air current channels, increases the diffusion repeatedly and effectively reduces scroll compressor noise with the mode that changes the flow direction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a front view of a noise damping cover according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the silencing enclosure provided by the embodiment of the present invention, including L1, L2, L4, L5, D1, D2, D3, and D4.
Fig. 3 is a schematic view illustrating a flow direction of gas in the muffling cover according to the embodiment of the present invention.
Fig. 4 is a rear view of the noise damping cover according to the embodiment of the present invention.
Fig. 5 is a schematic structural view of the muffling cover according to the embodiment of the present invention.
Fig. 6 is an exploded view of the noise reduction cover and the base fixing plate according to the embodiment of the present invention.
Fig. 7 is a schematic structural view of the noise reduction cover and the base fixing plate according to the embodiment of the present invention.
Wherein: 1-a silencing cover, 11-a silencing cavity, 12-a silencing cover exhaust port, 2-a silencing structure, 21-an opening, 22-a middle area, 31-a first inner ring curved surface bulge, 32-a second inner ring curved surface bulge, 33-a third inner ring curved surface bulge, 34-a fourth inner ring curved surface bulge, 35-a fifth inner ring curved surface bulge, 41-a first outer ring curved surface bulge, 42-a second outer ring curved surface bulge, 43-a third outer ring curved surface bulge, 44-a fourth outer ring curved surface bulge, 5-a threaded hole, 6-a base fixing plate, 61-a through hole and 7-a screw;
a silencing air flow channel.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
The use of the ordinal terms "first," "second," "third," etc., to describe a common object merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
Also, the expression "comprising" an element is an expression of "open" which merely means that there is a corresponding component, and should not be interpreted as excluding additional components.
In order to achieve the object of the present invention, in some embodiments of a muffling cover 1 and a scroll compressor comprising the muffling cover 1, as shown in fig. 1-5, the muffling cover 1 has a muffling chamber 11, and the muffling chamber 11 is communicated with an exhaust port 12 of the muffling cover 1;
a silencing structure 2 for forming two meandering silencing gas flow passages a is provided in the silencing chamber 11.
The utility model discloses an improve 1 inner structure of amortization cover, add tortuous amortization air current way, realize the manifold increase diffusion repeatedly of air current and change its flow direction to improve the noise cancelling effect.
The silencing cover 1 and the silencing structure 2 may be an integral structure or a split structure.
In some embodiments, the sound-deadening cover 1 and the sound-deadening structural body 2 are made of cast iron, and the sound-deadening effect is better than that of the carbon steel used in the prior art because the surface of the cast iron material is provided with air holes. It should be noted that the muffling cover 1 and the muffling structure 2 disclosed in the present invention are not limited to cast iron.
In order to further optimize the implementation effect of the present invention, in other embodiments, the rest of the features are the same, except that the silencing structure 2 is a ring structure with an opening 21 and/or a through hole;
the opening 21 or the through hole is arranged on the position of the silencing structure body 2 opposite to the exhaust port of the silencing cover 1;
two zigzag silencing air flow channels a are formed between the outer wall of the silencing structure 2 and the inner wall of the silencing cavity 11.
With the preferred arrangement, the structure is simple, the intermediate region 22 of the sound attenuating structure 2 is in communication with the discharge port of the scroll compressor, and the opening 21 or through-hole of the annular structure forms the inlet port of the sound attenuating air flow path. After flowing out from the exhaust port of the scroll compressor, the gas passes through the middle area 22 of the silencing structure 2, flows out from the opening 21 or the through hole, is divided into two parts, and then is respectively silenced through the zigzag silencing gas flow channel, and finally flows out from the exhaust port of the silencing cover 1.
Further, the flow area of the opening 21 and/or the through hole is smaller than the flow area of the exhaust port of the muffling cover 1.
By adopting the preferable scheme, the noise reduction effect is better.
In order to further optimize the implementation effect of the present invention, in other embodiments, the other feature technologies are the same, except that a plurality of smooth inner ring curved surface protrusions are arranged on the outer wall of the silencing structure body 2, and a plurality of smooth outer ring curved surface protrusions are arranged on the inner wall of the silencing cavity 11;
and any outer ring curved surface bulge is arranged between two adjacent inner ring curved surface bulges.
By adopting the preferable scheme, the zigzag noise reduction airflow channel is formed, and the surfaces of the inner ring curved surface protrusions and the outer ring curved surface protrusions are smooth curved surfaces, so that noise reduction is facilitated. Moreover, the design of the bulge can effectively increase the wall thickness and improve the mechanical strength of the silencing cover 1 and the silencing structure body 2.
Furthermore, a plurality of threaded holes 5 which are fixedly connected with a base fixing plate 6 are arranged on the plurality of inner ring curved surface bulges.
By adopting the preferable scheme, the installation and fixation are more convenient on the premise of not influencing the silencing effect.
Further, along the flowing direction of the gas in the silencing gas flow channel, the shortest distance from the next inner ring curved surface bulge to the inner wall of the silencing cavity 11 is greater than the shortest distance from the previous inner ring curved surface bulge to the inner wall of the silencing cavity 11;
and along the flow direction of the gas in the silencing gas flow channel, the shortest distance from the next outer ring curved surface projection to the outer wall of the silencing structure body 2 is greater than the shortest distance from the previous outer ring curved surface projection to the outer wall of the silencing structure body 2.
By adopting the preferable scheme, the noise reduction effect is optimal.
In order to further optimize the utility model discloses an implement the effect, in some other embodiments, all the other characteristic techniques are the same, and the difference lies in, along the interior gas flow direction of amortization gas flow channel, the protruding projection molded lines length in amortization cover 1 bottom surface of next outer loop curved surface is less than the protruding projection molded lines length in amortization cover 1 bottom surface of last outer loop curved surface.
By adopting the preferable scheme, the noise reduction effect is optimal.
In order to further optimize the implementation effect of the present invention, in other embodiments, other features are the same, except that the two zigzag noise reduction airflow channels have the same structure.
With the above preferred arrangement, the production and installation of the noise-damping cover 1 and the noise-damping structural body 2 are facilitated.
In order to further optimize the implementation effect of the present invention, in other embodiments, the rest of the feature technologies are the same, except that the inner wall and/or the outer wall of the sound attenuation structure 2 is a smooth curved surface;
and/or the inner wall of the silencing cover 1 is a smooth curved surface.
For a better understanding of the sound-damping cover 1, a specific embodiment is described below.
The silencing cover 1 is provided with a silencing cavity 11, the silencing cavity 11 is communicated with an exhaust port 12 of the silencing cover 1, a silencing structure body 2 is arranged in the silencing cavity 11, the silencing structure body 2 is of an annular structure with an opening 21, and the opening 21 is arranged on the silencing structure body 2 and is opposite to the exhaust port of the silencing cover 1; two zigzag silencing air flow channels a are formed between the outer wall of the silencing structure 2 and the inner wall of the silencing cavity 11.
Five smooth inner ring curved surface protrusions are arranged on the outer wall of the silencing structure body 2, specifically, a first inner ring curved surface protrusion 31, a second inner ring curved surface protrusion 32, a third inner ring curved surface protrusion 33, a fourth inner ring curved surface protrusion 34 and a fifth inner ring curved surface protrusion 35, wherein the third inner ring curved surface protrusion 33 is arranged at a position facing the exhaust port of the silencing cover 1.
Be equipped with four glossy outer annular curved surface archs on the inner wall of amortization chamber 11, specifically do: a first outer ring curved surface protrusion 41, a second outer ring curved surface protrusion 42, a third outer ring curved surface protrusion 43, and a fourth outer ring curved surface protrusion 44;
and any outer ring curved surface protrusion is arranged between two adjacent inner ring curved surface protrusions, namely:
the first outer ring curved surface protrusion 41 is arranged between the first inner ring curved surface protrusion 31 and the second inner ring curved surface protrusion 32;
the second outer annular curved surface protrusion 42 is arranged between the second inner annular curved surface protrusion 32 and the third inner annular curved surface protrusion 33;
the third outer ring curved surface protrusion 43 is disposed between the third inner ring curved surface protrusion 33 and the fourth inner ring curved surface protrusion 34;
the fourth outer toroidal curved surface protrusion 44 is disposed between the fourth inner toroidal curved surface protrusion 34 and the fifth inner toroidal curved surface protrusion 35.
And a plurality of threaded holes 5 for fixedly connecting with the base fixing plate 6 are arranged on the first inner ring curved surface bulge 31, the third inner ring curved surface bulge 33 and the fifth inner ring curved surface bulge 35.
The shortest distance L2 from the second inner annular curved surface projection 32 to the inner wall of the sound-deadening chamber 11 is greater than the shortest distance L1 from the first inner annular curved surface projection 31 to the inner wall of the sound-deadening chamber 11. Because the two zigzag noise reduction airflow channels have the same structure, and the noise reduction cover 1 and the noise reduction structure body 2 have symmetrical structures, the shortest distance L4 from the fourth inner annular curved surface bulge 34 to the inner wall of the noise reduction cavity 11 is larger than the shortest distance L5 from the fifth inner annular curved surface bulge 35 to the inner wall of the noise reduction cavity 11 in the same way.
Wherein: l2 ═ L4; l1 ═ L5.
The shortest distance D2 from the second outer annular curved projection 42 to the outer wall of the sound-deadening structure body 2 is larger than the shortest distance D1 from the first outer annular curved projection 41 to the outer wall of the sound-deadening structure body 2. Because the two zigzag noise reduction airflow channels have the same structure, and the noise reduction cover 1 and the noise reduction structure body 2 have symmetrical structures, the shortest distance D3 from the third outer ring curved surface bulge 43 to the outer wall of the noise reduction structure body 2 is larger than the shortest distance D4 from the fourth outer ring curved surface bulge 44 to the outer wall of the noise reduction structure body 2.
Wherein: d2 ═ D3; d1 ═ D4.
Furthermore, the length of the projection profile of the second outer ring curved surface protrusion 42 on the bottom surface of the sound-deadening housing 1 is smaller than the length of the projection profile of the first outer ring curved surface protrusion 41 on the bottom surface of the sound-deadening housing 1. Because the two zigzag noise reduction airflow channels have the same structure, and the noise reduction cover 1 and the noise reduction structure body 2 have symmetrical structures, the length of the projection molded line of the third outer ring curved surface bulge 43 on the bottom surface of the noise reduction cover 1 is smaller than the length of the projection molded line of the fourth outer ring curved surface bulge 44 on the bottom surface of the noise reduction cover 1 in the same way.
On the other hand, the embodiment of the utility model discloses still disclose a scroll compressor, include: in the silencing cover 1 disclosed in any of the above embodiments, the silencing cover 1 is mounted at the exhaust port of the scroll compressor through the base fixing plate 6.
As shown in fig. 6 to 7, the base fixing plate 6 is provided with a through hole 61, and the through hole 61 is positioned to communicate with the intermediate region 22 of the noise-canceling structure 2 in the noise-canceling cover 1. After the base fixing plate 6 is fixedly connected with the silencing structure body 2 through the screw 7, the zigzag silencing airflow channel becomes a relatively closed space.
The utility model discloses an improve 1 inner structure of amortization cover, add tortuous amortization air current way, realize the manifold increase diffusion repeatedly of air current and change its flow direction to improve the noise cancelling effect.
The silencing cover 1 and the silencing structure 2 may be an integral structure or a split structure.
The utility model relates to a scroll compressor, it is when exhausting, through two tortuous amortization air current channels, increases the diffusion repeatedly and effectively reduces scroll compressor noise with the mode that changes the flow direction.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. The silencing cover is characterized by comprising a silencing cavity, wherein the silencing cavity is communicated with an air outlet of the silencing cover;
and a silencing structure body for forming two zigzag silencing airflow channels is arranged in the silencing cavity.
2. The muffling cover according to claim 1, wherein the muffling structure is an annular structure having an opening and/or a through hole;
the opening or the through hole is arranged on the silencing structure body and is opposite to the exhaust port of the silencing cover;
two zigzag noise reduction airflow channels are formed between the outer wall of the noise reduction structure body and the inner wall of the noise reduction cavity.
3. The muffling enclosure of claim 2, wherein the opening and/or through-hole has a smaller flow area than the muffling enclosure exhaust.
4. The muffling cover according to claim 2, wherein a plurality of smooth inner annular curved protrusions are provided on the outer wall of the muffling structure, and a plurality of smooth outer annular curved protrusions are provided on the inner wall of the muffling chamber;
and any outer ring curved surface bulge is arranged between two adjacent inner ring curved surface bulges.
5. The muffling cover according to claim 4, wherein a plurality of threaded holes for fixedly connecting with the base fixing plate are formed on the plurality of inner annular curved protrusions.
6. The sound-deadening cap according to claim 4,
along the flowing direction of the gas in the silencing gas flow channel, the shortest distance from the next inner annular curved surface bulge to the inner wall of the silencing cavity is greater than the shortest distance from the previous inner annular curved surface bulge to the inner wall of the silencing cavity;
and along the flowing direction of the gas in the silencing gas flow channel, the shortest distance from the next outer ring curved surface bulge to the outer wall of the silencing structure body is greater than the shortest distance from the previous outer ring curved surface bulge to the outer wall of the silencing structure body.
7. The muffling cover of claim 4, wherein the length of the projected profile of the next curved protrusion of the outer ring on the bottom surface of the muffling cover in the flowing direction of the gas in the muffling gas flow channel is smaller than the length of the projected profile of the previous curved protrusion of the outer ring on the bottom surface of the muffling cover.
8. The muffling enclosure of any one of claims 1-7, wherein the two tortuous muffling airflow channels are identical in structure.
9. The muffling enclosure of any one of claims 1-7, wherein the inner wall and/or the outer wall of the muffling structure is a smooth curved surface;
and/or the inner wall of the silencing cover is a smooth curved surface.
10. A scroll compressor, comprising: the muffling enclosure of any one of claims 1 to 9, mounted at the scroll compressor discharge port by a base retaining plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120795502.3U CN214837104U (en) | 2021-04-19 | 2021-04-19 | Silencing cover and scroll compressor comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120795502.3U CN214837104U (en) | 2021-04-19 | 2021-04-19 | Silencing cover and scroll compressor comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214837104U true CN214837104U (en) | 2021-11-23 |
Family
ID=78764410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120795502.3U Active CN214837104U (en) | 2021-04-19 | 2021-04-19 | Silencing cover and scroll compressor comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214837104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201734A (en) * | 2023-03-17 | 2023-06-02 | 广东美的环境科技有限公司 | Compressor and air conditioner |
-
2021
- 2021-04-19 CN CN202120795502.3U patent/CN214837104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201734A (en) * | 2023-03-17 | 2023-06-02 | 广东美的环境科技有限公司 | Compressor and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214837104U (en) | Silencing cover and scroll compressor comprising same | |
| CN108343590B (en) | Exhaust silencer structure of compressor | |
| JP4166593B2 (en) | Silencer | |
| CN112177887B (en) | Exhaust silencing structure and compressor | |
| CN113027757A (en) | Silencing cover and scroll compressor comprising same | |
| JPH11280479A (en) | Intercooler | |
| CN216974998U (en) | Silencer with exhaust tuning valve | |
| CN113847735A (en) | Device of making an uproar and have its air conditioner falls in wind channel | |
| CN212841780U (en) | Smoke collecting hood and range hood | |
| CN210858895U (en) | Silencer and automobile exhaust system comprising same | |
| CN111075537A (en) | Silencing device for cold end of automobile exhaust system | |
| CN209908769U (en) | Noise reduction type cylinder cover of rotor type compressor | |
| CN215058002U (en) | Muffler and compressor | |
| CN218094391U (en) | Noise reduction valve, air conditioner outdoor unit and air conditioner | |
| CN218598327U (en) | Silencer, compressor assembly and household appliance | |
| JP2001132567A (en) | Intake device | |
| WO2023273453A1 (en) | Fan assembly and household appliance | |
| CN216204258U (en) | Device of making an uproar and have its air conditioner falls in wind channel | |
| JPH0777025A (en) | Silencer | |
| CN116201734A (en) | Compressor and air conditioner | |
| CN214307565U (en) | Silencer assembly for air conditioner and air conditioning system with same | |
| CN214944829U (en) | Amortization structure, compressor and refrigeration plant | |
| CN217959111U (en) | Air outlet device and electric hair drier | |
| CN215256539U (en) | Pressure relief device of vehicle and vehicle with same | |
| CN114087059B (en) | Silencer suitable for high air speed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |