CN216278507U - Compressor and shell thereof - Google Patents
Compressor and shell thereof Download PDFInfo
- Publication number
- CN216278507U CN216278507U CN202123100614.1U CN202123100614U CN216278507U CN 216278507 U CN216278507 U CN 216278507U CN 202123100614 U CN202123100614 U CN 202123100614U CN 216278507 U CN216278507 U CN 216278507U
- Authority
- CN
- China
- Prior art keywords
- compressor
- shell
- wall structure
- arcs
- spherical inner
- 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)
- Compressor (AREA)
Abstract
The utility model provides a compressor and a shell thereof, wherein the shell of the compressor is provided with a spherical inner wall structure, the axial section of the spherical inner wall structure of the compressor is one or more arcs which are concave or convex towards the axis of the compressor, and when noise sound waves in the shell are incident to the inner wall of the shell, the noise sound waves are refracted by the spherical inner wall structure at different angles, so that the noise sound waves generate interference after refraction. The utility model adopts a plurality of spherical surfaces in the shell under the premise of not changing the appearance and the mechanical structure of the compressor and not increasing new parts, so that the reflected sound waves in the compressor form an interference field, and the aim of reducing the noise of the compressor is achieved by utilizing the principle of destructive interference of the sound waves.
Description
Technical Field
The utility model relates to the field of compressors, in particular to a compressor and a shell thereof.
Background
The existing electric compressor for the vehicle has the advantages of lighter weight requirement, more and more compact structure and higher and more high rotating speed requirement, but the noise requirement is more and more strict, and how to further reduce the noise becomes an important subject on the basis of unchanged appearance and mechanical structure of the compressor in the process of matching new items for mass-produced products. At present, the main means for reducing noise is to find a noise source, change the noise frequency band by changing the structure of the noise source or using new parts, so that the noise frequency band is not overlapped in the same frequency band, but once the structure is changed or the new parts are used, a life test is inevitably required to be carried out to confirm that the newly adopted structure and the life of the parts meet the requirements, so that the development progress is prolonged, and the development cost is increased.
In some prior art, noise is reduced primarily by adding silencers. However, the addition of the silencer necessitates the introduction of new parts and the modification of the compressor housing due to the introduction of new parts, and such a noise solution is difficult to satisfy the need for not making a large modification of the compressor housing. Secondly, for the multilayer structure silencer, an expansion chamber is added on the exhaust airflow channel, the local resistance loss is obviously increased, the exhaust resistance is increased, the power of the compressor is increased, and the energy efficiency ratio is reduced. Thirdly, the multilayer structure of the silencer is used in the scroll compressor, which is equivalent to the increase of parts, and the size of the compressor is also increased correspondingly, thus being not beneficial to the light weight and miniaturization design of the scroll compressor.
Therefore, the technical problem to be solved by the technical personnel in the field is to reduce the noise of the compressor on the premise of not changing the appearance and the mechanical structure of the compressor and not increasing new parts.
SUMMERY OF THE UTILITY MODEL
The utility model provides a compressor and a shell thereof in order to overcome the defects in the prior art, so that the noise of the compressor is reduced on the premise of not changing the appearance and the mechanical structure of the compressor and not increasing new parts.
The utility model provides a shell of a compressor, which is provided with a spherical inner wall structure, wherein the axial section of the spherical inner wall structure of the compressor is one or more arcs which are concave or convex towards the axis of the compressor, and when noise sound waves in the shell enter the inner wall of the shell, the noise sound waves are refracted by the spherical inner wall structure at different angles, so that the noise sound waves generate interference after refraction.
In some embodiments of the present application, the spherical inner wall structure has, in an axial section of the compressor, an arc that is concave or convex toward an axis of the compressor, and has a radius of 0.5 to 5 times a diameter of the inner cavity of the shell.
In some embodiments of the present application, the spherical inner wall structure has, in an axial section of the compressor, a plurality of arcs concave toward an axis of the compressor, the arcs having a radius of 0.1 to 3 times a diameter of the inner cavity of the housing.
In some embodiments of the present application, the spherical inner wall structure, in an axial cross-section of the compressor, is a plurality of arcs convex toward an axis of the compressor, the arcs having a radius of 0.1 to 3 times a diameter of the shell cavity.
In some embodiments of the present application, the adjacent arcs use one of a sharp transition, a flat transition, and a rounded smooth transition.
In some embodiments of the present application, the spherical inner wall structure is a plurality of first circular arcs concave towards the axis of the compressor and a plurality of second circular arcs convex towards the axis of the compressor in the axial section of the compressor, the first circular arcs and the second circular arcs are arranged at intervals, and the radius of the circular arcs is 0.1 to 3 times of the diameter of the inner cavity of the shell.
In some embodiments of the present application, the chord height of the arc is 0.05 to 1 millimeter.
In some embodiments of the present application, the bulbous inner wall structure extends in a circumferential and/or axial direction of the housing.
In some embodiments of the present application, the housing comprises a front shell, a rear shell, a housing, and the bulbous inner wall structure is disposed on one or more of the front shell, the rear shell, the housing.
According to yet another aspect of the present application, there is also provided a compressor including:
the shell is provided with an accommodating space;
the compression mechanism is positioned in the accommodating space and comprises a static scroll disk and a movable scroll disk;
the motor mechanism is positioned in the accommodating space and comprises a motor rotor and a motor stator, and the motor mechanism drives the movable scroll disc to rotate relative to the fixed scroll disc so as to compress the refrigerant in the compression cavity;
and the eccentric crankshaft is respectively connected with the motor rotor of the motor mechanism and the movable scroll disk so as to transmit the rotating force of the motor rotor.
Compared with the prior art, the utility model has the following advantages:
according to the utility model, the spherical inner wall structure is arranged on the shell of the compressor, and when the noise sound waves in the shell are incident to the inner wall of the shell, the spherical inner wall structure refracts the noise sound waves at different angles, so that the noise sound waves generate interference after refraction. Therefore, the overall appearance and the mechanical structure of the compressor are unchanged, a service life test is not needed, and the material cost of the compressor is unchanged on the premise of ensuring the strength; meanwhile, each shell part of the compressor does not relate to die repairing, can be machined through different machining, has small change of machining length, and basically has negligible influence on the manufacturing cost.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 illustrates a perspective view of a compressor according to an embodiment of the present invention.
Fig. 2 shows a sectional view of a shell of a compressor according to a first embodiment of the present invention.
Fig. 3 shows a partial enlarged view of fig. 2.
Fig. 4 shows a sectional view of a shell of a compressor according to a second embodiment of the present invention.
Fig. 5 shows a partial enlarged view of fig. 4.
Fig. 6 shows a sectional view of a shell of a compressor according to a third embodiment of the present invention.
Fig. 7 shows a sectional view of a shell of a compressor according to a fourth embodiment of the present invention.
Fig. 8 shows a sectional view of a shell of a compressor according to a fifth embodiment of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
In order to improve the defects of the prior art, the utility model provides a compressor, preferably a scroll compressor for an electric automobile, but the compressor provided by the utility model is not limited to the use of the electric automobile.
Referring first to fig. 1, fig. 1 illustrates a compressor according to an embodiment of the present invention.
In the present embodiment, the compressor 100 includes a housing, a compression mechanism, a motor mechanism, an eccentric crankshaft, and a balance block structure. The shell is provided with an accommodating space. The compression mechanism is positioned in the accommodating space and comprises a static scroll disk and a movable scroll disk. The fixed scroll is provided with a first scroll wrap. The movable scroll disk is provided with a second scroll wrap, and one side of the movable scroll disk provided with the second scroll wrap is opposite to the first scroll wrap of the fixed scroll disk. The first wrap of the fixed scroll and the second wrap of the movable scroll form a compression chamber. And one side of the static scroll disc, which is back to the movable scroll disc, and the front shell form an exhaust cavity. One side of the movable scroll disc, which is back to the fixed scroll disc, and the shell form a low-pressure cavity. The motor mechanism is positioned in the accommodating space and comprises a motor rotor and a motor stator, and the motor mechanism drives the movable scroll disc to rotate relative to the fixed scroll disc so as to compress the refrigerant in the compression cavity. The eccentric crankshaft is respectively connected with a motor rotor of the motor mechanism and the movable scroll disk to transmit the rotating force of the motor rotor. The eccentric crankshaft is connected with the movable scroll disk through the split type shaft sleeve and the needle roller bearing of the movable scroll disk. The shell of the compressor of fig. 1 may include a front shell 110, a shell 120, and a rear shell 130. The front case 110, the housing 120, and the rear case 130 may be formed separately or integrally, and the present application is not limited thereto.
The application still provides a casing of compressor, the casing of compressor can be provided with globular inner wall structure, globular inner wall structure is one or more orientation at the axial cross-section of compressor the circular arc of the axis indent or evagination of compressor, wherein, noise sound wave in the casing is when inciting shells inner wall, by globular inner wall structure produces the refraction of different angles to make behind the refraction noise sound wave produces and interferes.
The following description is made of the housing structure provided in the present application, with reference to a plurality of embodiments, respectively.
First embodiment referring to fig. 2 and 3, fig. 2 shows a sectional view of a shell of a compressor according to a first embodiment of the present invention. Fig. 3 shows a partial enlarged view of fig. 2.
In the present embodiment, the spherical inner wall structure 211 of the shell 210 has a plurality of first arcs (212 and 214) concave toward the axis of the compressor and a second arc 213 convex toward the axis of the compressor in the axial section of the compressor. The radius of curvature of the first circular arc is R1, and the radius of curvature of the second circular arc is R2. The first circular arc and the second circular arc are arranged at intervals, and the radiuses of the circular arcs R1 and R2 can be 0.1 to 3 times of the diameter of the inner cavity of the shell. The chord heights of the first circular arc and the second circular arc may be set to 0.05 to 1 mm. Further, in this embodiment, the spherical inner wall structure 211 may extend in a circumferential and/or axial direction of the housing. For example, the spherical inner wall structure of the housing at different angular axial cross-sections is consistent from place to place. For another example, the spherical inner wall structure of the axial section of the shell is also a plurality of first circular arcs concave towards the axis of the compressor and a plurality of second circular arcs convex towards the axis of the compressor.
Second embodiment referring to fig. 4 and 5, fig. 4 shows a sectional view of a shell of a compressor according to a second embodiment of the present invention. Fig. 5 shows a partial enlarged view of fig. 4.
In the present embodiment, the spherical inner wall structure 221 of the shell 220 has, in an axial cross section of the compressor, a plurality of first circular arcs (222, 224, and 226) concave toward an axis of the compressor and a plurality of second circular arcs (223 and 225) convex toward the axis of the compressor. The radius of curvature of the first circular arc is R1, and the radius of curvature of the second circular arc is R2. The first circular arc and the second circular arc are arranged at intervals, and the radiuses of the circular arcs R1 and R2 can be 0.1 to 3 times of the diameter of the inner cavity of the shell. The chord heights of the first circular arc and the second circular arc may be set to 0.05 to 1 mm. Further, in this embodiment, the spherical inner wall structure 221 may extend along a circumferential and/or axial direction of the housing. For example, the spherical inner wall structure of the housing at different angular axial cross-sections is consistent from place to place. For another example, the spherical inner wall structure of the axial section of the shell is also a plurality of first circular arcs concave towards the axis of the compressor and a plurality of second circular arcs convex towards the axis of the compressor.
Third embodiment referring to fig. 6, fig. 6 shows a sectional view of a shell of a compressor according to a third embodiment of the present invention.
In the present embodiment, the spherical inner wall structure 231 of the shell 230 has a circular arc concave toward the axis of the compressor in the axial section of the compressor, and the radius of the circular arc is 0.5 to 5 times the diameter of the inner cavity of the shell. The chord height of the circular arc may be set to 0.05 to 1 mm. Further, in this embodiment, the spherical inner wall structure 231 may extend in the circumferential and/or axial direction of the housing. For example, the spherical inner wall structure of the housing at different angular axial cross-sections is consistent from place to place. For another example, the spherical inner wall structure of the axial cross section of the housing is also arc-shaped.
Fourth embodiment referring to fig. 7, fig. 7 shows a sectional view of a shell of a compressor according to a fourth embodiment of the present invention.
In the present embodiment, the spherical inner wall structure 231 of the shell 230 has a circular arc convex toward the axis of the compressor in the axial section of the compressor, and the radius of the circular arc is 0.5 to 5 times the diameter of the inner cavity of the shell. The chord height of the circular arc may be set to 0.05 to 1 mm. Further, in this embodiment, the spherical inner wall structure 231 may extend in the circumferential and/or axial direction of the housing. For example, the spherical inner wall structure of the housing at different angular axial cross-sections is consistent from place to place. For another example, the spherical inner wall structure of the axial cross section of the housing is also arc-shaped.
Fifth embodiment referring to fig. 8, fig. 8 shows a sectional view of a shell of a compressor according to a fifth embodiment of the present invention.
In the present embodiment, the spherical inner wall structure 231 of the shell 230 has, in the axial section of the compressor, a plurality of arcs convex toward the axis of the compressor, and the radius of the arcs is 0.1 to 3 times the diameter of the inner cavity of the shell. The chord height of the circular arc may be set to 0.05 to 1 mm. Further, in this embodiment, the spherical inner wall structure 231 may extend in the circumferential and/or axial direction of the housing. For example, the spherical inner wall structure of the housing at different angular axial cross-sections is consistent from place to place. For another example, the spherical inner wall structure of the axial cross section of the housing is also arc-shaped.
In this embodiment, the adjacent arcs adopt one of sharp-angled transition, planar transition and round-angled smooth transition.
In some variations, the spherical inner wall structure of the shell, in an axial section of the compressor, is a plurality of arcs concave towards the axis of the compressor, the radius of the arcs being 0.1 to 3 times the diameter of the inner cavity of the shell. The present application is not so limited.
Further, the shell comprises a front shell, a rear shell and a shell, and the spherical inner wall structure is arranged on one or more of the front shell, the rear shell and the shell.
Specifically, in the case of a compressor, since the magnitude of noise is directly affected by the speed of operation, the spherical inner wall structure can be set according to the rotational speed of the compressor. The size of the arc of the spherical inner wall can be calculated according to the following formula: and R is A × S/(2 × D × h × n), wherein A is an adjusting parameter, S is the running rotating speed of the compressor (the target rotating speed for mainly reducing noise), D is the diameter of the inner diameter of the shell, h is the arc chord height, and n is the number of the arc sections of the inner wall. Further, in the above formula, a may be set empirically or via an analog-to-analog algorithm. h can be determined according to the actual shell wall thickness on the basis of the set wall thickness strength.
The above description is only illustrative of various implementations of the present invention, and the present invention is not limited thereto, and the embodiments may be implemented alone or in combination.
According to the utility model, the spherical inner wall structure is arranged on the shell of the compressor, and when the noise sound waves in the shell are incident to the inner wall of the shell, the spherical inner wall structure refracts the noise sound waves at different angles, so that the noise sound waves generate interference after refraction. Therefore, the overall appearance and the mechanical structure of the compressor are unchanged, a service life test is not needed, and the material cost of the compressor is unchanged on the premise of ensuring the strength; meanwhile, each shell part of the compressor does not relate to die repairing, can be machined through different machining, has small change of machining length, and basically has negligible influence on the manufacturing cost.
Exemplary embodiments of the present invention are specifically illustrated and described above. It is to be understood that the utility model is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.
Claims (10)
1. The shell of the compressor is characterized in that the shell of the compressor is provided with a spherical inner wall structure, the axial section of the spherical inner wall structure of the compressor is one or more arcs which are concave or convex towards the axis of the compressor, and when noise sound waves in the shell enter the inner wall of the shell, the spherical inner wall structure generates refraction at different angles, so that the noise sound waves generate interference after refraction.
2. A compressor shell according to claim 1, wherein said spherical inner wall structure, in an axial section of the compressor, is an arc concave or convex toward the axis of said compressor, said arc having a radius of 0.5 to 5 times the diameter of the inner cavity of said shell.
3. A compressor shell according to claim 1, wherein said spherical inner wall structure, in an axial section of the compressor, is a plurality of arcs concave toward an axis of said compressor, said arcs having a radius of 0.1 to 3 times a diameter of said shell inner cavity.
4. A compressor shell as claimed in claim 1, wherein said spherical inner wall structure, in axial section of the compressor, is a plurality of arcs convex towards the axis of said compressor, said arcs having a radius of 0.1 to 3 times the diameter of the inner cavity of said shell.
5. A compressor shell according to claim 3 or 4, wherein adjacent arcs are one of sharp, flat and rounded smooth transitions.
6. The compressor shell as claimed in claim 1, wherein the spherical inner wall structure has, in an axial section of the compressor, a plurality of first arcs concave toward an axis of the compressor and a plurality of second arcs convex toward the axis of the compressor, the first arcs and the second arcs being spaced apart, and a radius of the arcs being 0.1 to 3 times a diameter of the shell inner cavity.
7. The compressor shell according to any one of claims 1 to 4 and 6, wherein the chord height of the circular arc is 0.05 to 1 mm.
8. A casing for a compressor as claimed in any one of claims 1 to 4 and 6 wherein said spherical inner wall structure extends in a circumferential and/or axial direction of said casing.
9. The compressor shell according to any one of claims 1 to 4 and 6, wherein the shell comprises a front shell, a rear shell and a shell, and the spherical inner wall structure is arranged on one or more of the front shell, the rear shell and the shell.
10. A compressor, comprising:
the housing of any one of claims 1 to 9, having an accommodating space;
the compression mechanism is positioned in the accommodating space and comprises a static scroll disk and a movable scroll disk;
the motor mechanism is positioned in the accommodating space and comprises a motor rotor and a motor stator, and the motor mechanism drives the movable scroll disc to rotate relative to the fixed scroll disc so as to compress refrigerant in a compression cavity;
and the eccentric crankshaft is respectively connected with the motor rotor of the motor mechanism and the movable scroll disk so as to transmit the rotating force of the motor rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123100614.1U CN216278507U (en) | 2021-12-10 | 2021-12-10 | Compressor and shell thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123100614.1U CN216278507U (en) | 2021-12-10 | 2021-12-10 | Compressor and shell thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216278507U true CN216278507U (en) | 2022-04-12 |
Family
ID=81056125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123100614.1U Active CN216278507U (en) | 2021-12-10 | 2021-12-10 | Compressor and shell thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216278507U (en) |
-
2021
- 2021-12-10 CN CN202123100614.1U patent/CN216278507U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015033835A1 (en) | Foil bearing unit | |
| CN109812493A (en) | Air paillon transverse bearing | |
| CN111720308B (en) | Scroll compressor having a discharge port | |
| US6698929B2 (en) | Turbo compressor | |
| CN216278507U (en) | Compressor and shell thereof | |
| EP3561304A1 (en) | Scroll compressor and assembly method thereof | |
| CN114001032A (en) | Compressor and shell thereof | |
| JP3286211B2 (en) | Scroll compressor | |
| EP2759709A1 (en) | Compressor | |
| JP6305749B2 (en) | Foil bearing, foil bearing unit having the same, and turbomachine | |
| CN114183353A (en) | Support assembly for scroll compressor and scroll compressor | |
| JPS6013922A (en) | Gas dynamic pressure wave overcharger for overcharging vehicle internal combustion engine | |
| CN211598834U (en) | Rotor system and micro gas turbine generator set | |
| CN210218117U (en) | Oil-free single-screw air compressor | |
| CN210949146U (en) | Silencer and compressor | |
| KR102662655B1 (en) | Compressor | |
| CN208950863U (en) | Compressor and refrigeration equipment with the compressor | |
| KR102538615B1 (en) | Rotor assembly structure of electric compressor | |
| CN110762010A (en) | Compression mechanism of rotary compressor and rotary compressor | |
| JP2020016165A (en) | Scroll compressor | |
| CN116624387B (en) | Scroll compressor and air conditioner | |
| CN211117359U (en) | Vehicle scroll compressor and balance block structure thereof | |
| CN221002876U (en) | Nozzle ring installation positioning structure | |
| EP1878921A1 (en) | Closed type fluid machine | |
| CN218030486U (en) | Two-stage compression piston connecting rod structure and piston connecting rod device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |