CN204371691U - Compression assembly and there is its rotary compressor - Google Patents
Compression assembly and there is its rotary compressor Download PDFInfo
- Publication number
- CN204371691U CN204371691U CN201420823432.8U CN201420823432U CN204371691U CN 204371691 U CN204371691 U CN 204371691U CN 201420823432 U CN201420823432 U CN 201420823432U CN 204371691 U CN204371691 U CN 204371691U
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- compression assembly
- exhaust port
- crescent
- upper flange
- cylinder
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Abstract
The utility model provides a kind of compression assembly and has its rotary compressor, compression assembly comprises upper flange (10), cylinder (20) and lower flange (30), cylinder (20) is arranged between upper flange (10) and lower flange (30), upper flange (10) comprises first surface and the second surface relative with first surface, upper flange (10) is provided with the exhaust port (11) running through first surface and second surface, cylinder (20) has crescent, crescent is communicated with exhaust port (11), the wall towards crescent of exhaust port (11) is concave arc surface.The problem refluxed is there is at exhaust port place in the technical solution of the utility model when efficiently solving the structure exhaust of the upper flange of compressor in prior art.
Description
Technical field
The utility model relates to compression technique area, in particular to a kind of compression assembly and the rotary compressor with it.
Background technique
As shown in Figure 1, the exhaust passage of the upper flange 1 of rotary compressor of the prior art is circular row pore 2.Rotary compressor can form back pressure in exhaust process, and rotary compressor exists larger vacuum area (as shown in Figure 2) when being vented at circular row pore place, increases the clearance volume of compressor, have impact on the volumetric efficiency of compressor.When exhaust valve plate is closed, air-flow forms backflow at vacuum area place, exacerbates the collision between gas, consumes the kinetic energy of gas self, which increase exhaust resistance, thus affect the refrigerating capacity of rotary compressor, thus add the power of compressor.
Model utility content
Main purpose of the present utility model is the rotary compressor providing a kind of compression assembly and have it, occurs the problem refluxed when being vented with the structure solving the upper flange of compressor in prior art at exhaust port place.
To achieve these goals, according to an aspect of the present utility model, provide a kind of compression assembly, comprise upper flange, cylinder and lower flange, cylinder is arranged between upper flange and lower flange, and upper flange comprises first surface and the second surface relative with first surface, upper flange is provided with the exhaust port running through first surface and second surface, cylinder has crescent, and crescent is communicated with exhaust port, and the wall towards crescent of exhaust port is concave arc surface.
Further, exhaust port comprises the first curved wall and the second curved wall that are connected, second curved wall forms concave arc surface, and the distance between one end away from crescent of the second curved wall and the axis of exhaust port is less than the distance between one end towards crescent of the second curved wall and the axis of exhaust port.
Further, the track of the intersection of the plane at the axis place of the second curved wall and exhaust port is hyperbola.
Further, hyperbola is y=1/x, wherein, and 0.25≤x≤2.
Further, the opening direction of crescent is contrary with the opening direction of concave arc surface.
Further, between the string of a musical instrument of crescent and the string of a musical instrument of concave arc surface, there is angle.
Further, angle is in the scope of 0 ~ 5 °.
Further, compression assembly also comprises bent axle, and bent axle wears upper flange, cylinder and lower flange successively.
Further, compression assembly also comprises fastening piece, and fastening piece wears upper flange, cylinder successively.
According to another aspect of the present utility model, provide a kind of rotary compressor, comprise compression assembly, compression assembly is above-mentioned compression assembly.
Application the technical solution of the utility model, the structure of exhaust port has filled up the vacuum area that in prior art, circular row pore place exists, and which reduces the clearance volume of compressor, effectively improves the volumetric efficiency of compressor.Meanwhile, when the exhaust valve plate of compression assembly is closed, owing to there is not vacuum area at exhaust port place, effectively prevent backflow phenomenon when exhaust valve plate is closed, make compression assembly smooth in exhaust, reduce aerodynamical resistance, thus improve the refrigerating capacity of compressor, reduce the power of compressor.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of the upper flange of rotary compressor of the prior art;
The schematic diagram of gas flow when the outlet valve that Fig. 2 shows the rotary compressor of Fig. 1 is opened;
Fig. 3 shows the structural representation of the embodiment according to compression assembly of the present utility model;
The schematic diagram of gas flow when the outlet valve that Fig. 4 shows the compression assembly of Fig. 3 is opened;
Fig. 5 shows the structural representation of the upper flange of the compression assembly of Fig. 3;
Fig. 6 shows the A place enlarged diagram of the upper flange of Fig. 5; And
Fig. 7 shows the exhaust port of the upper flange of Fig. 4 and the structural representation of crescent.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, upper flange; 2, exhaust port; 10, upper flange; 11, exhaust port; 111, the first curved wall; 112, the second curved wall; 20, cylinder; 30, lower flange; 40, bent axle; 50, fastening piece.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figures 3 to 6, the compression assembly of the present embodiment comprises upper flange 10, cylinder 20 and lower flange 30, cylinder 20 is arranged between upper flange 10 and lower flange 30, upper flange 10 comprises first surface and the second surface relative with first surface, upper flange 10 is provided with the exhaust port 11 running through first surface and second surface, cylinder 20 has crescent, and crescent is communicated with exhaust port 11, and the wall towards crescent of exhaust port 11 is concave arc surface.
The compression assembly of application the present embodiment, the structure of exhaust port 11 has filled up the vacuum area that in prior art, circular row pore place exists, and which reduces the clearance volume of compressor, effectively improves the volumetric efficiency of compressor.Meanwhile, when the exhaust valve plate of compression assembly is closed, owing to there is not vacuum area at exhaust port 11 place, effectively prevent backflow phenomenon when exhaust valve plate is closed, make compression assembly smooth in exhaust, reduce aerodynamical resistance, thus improve the refrigerating capacity of compressor, reduce the power of compressor.
As shown in Figure 7, in the present embodiment, exhaust port 11 comprises the first curved wall 111 and the second curved wall 112 be connected, second curved wall 112 forms concave arc surface, and the distance between one end away from crescent of the second curved wall 112 and the axis of exhaust port 11 is less than the distance between one end towards crescent of the second curved wall 112 and the axis of exhaust port 11.Said structure makes the second curved wall 112 of exhaust port 11 in streamline structure, and the shape of the second curved wall 112 designs according to the flowing law of air-flow.Make the air-flow in compression chamber discharge more swimmingly from exhaust port 11 like this, effectively reduce aerodynamical resistance, thus effectively improve the refrigerating capacity of compressor, effectively reduce the power of compressor.Meanwhile, the speed of the air-flow of exhaust port 11 obviously increases, and at exhaust port 11, place does not form back pressure region.Meanwhile, said structure further reduces the clearance volume of compressor, effectively improves the volumetric efficiency of compressor.
In order to the complete flowing law according to air-flow designs, in the present embodiment, the second curved wall 112 is hyperbola with the track of the intersection of the plane at the axis place of exhaust port 11.Make the shape of the first curved wall 111 and the actual airflow flowing edge in exhaust port 11 fit completely like this, make exhaust more smooth and easy, increase air-flow at exhaust port 11 medium velocity.Preferably, hyperbola is y=1/x, wherein, and 0.25≤x≤2.One section that chooses the flowing law of the most applicable air-flow in hyperbola, the shape of the first curved wall 111 is designed according to the flowing law of air-flow completely, thus make exhaust more smooth and easy.
In the present embodiment, the opening direction of crescent is contrary with the opening direction of concave arc surface.Make air-flow discharge from the crescent of cylinder 20 and enter swimmingly the exhaust port 11 of upper flange 10 like this, decrease exhaust resistance, thus improve the refrigerating capacity of compressor.
In order to reduce exhaust resistance further, in the present embodiment, between the string of a musical instrument of crescent and the string of a musical instrument of concave arc surface, there is angle.Preferably, angle is in the scope of 0 ~ 5 °.Exhaust resistance can be reduced to greatest extent like this, thus effectively improve the refrigerating capacity of compressor, effectively improve performance and the quality of product of compressor.
In order to ensure the normal work of compression assembly, as shown in Figure 3, in the present embodiment, compression assembly also comprises bent axle 40, and bent axle 40 wears upper flange 10, cylinder 20 and lower flange 30 successively.
As shown in Figure 3, in the present embodiment, compression assembly also comprises fastening piece 50, and fastening piece 50 wears upper flange 10, cylinder 20 and lower flange 30 successively.Upper flange 10, cylinder 20 and lower flange 30 can be fixed together by fastening piece 50.Fastening piece 50 is bolt, and the structure of bolt is simple, easy to use, and simple installation is with low cost.
Present invention also provides a kind of rotary compressor, the embodiment according to the rotary compressor (not shown) of the application comprises compression assembly, and compression assembly is above-mentioned compression assembly.The structure of exhaust port 11 has filled up the vacuum area that in prior art, circular row pore place exists, and which reduces the clearance volume of compressor, effectively improves the volumetric efficiency of compressor.Meanwhile, when the exhaust valve plate of compression assembly is closed, owing to there is not vacuum area at exhaust port 11 place, effectively prevent backflow phenomenon when exhaust valve plate is closed, make compression assembly smooth in exhaust, reduce aerodynamical resistance, thus improve the refrigerating capacity of compressor, reduce the power of compressor.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a compression assembly, it is characterized in that, comprise upper flange (10), cylinder (20) and lower flange (30), described cylinder (20) is arranged between described upper flange (10) and described lower flange (30), described upper flange (10) comprises first surface and the second surface relative with described first surface, described upper flange (10) is provided with the exhaust port (11) running through described first surface and described second surface, described cylinder (20) has crescent, described crescent is communicated with described exhaust port (11), the wall towards described crescent of described exhaust port (11) is concave arc surface.
2. compression assembly according to claim 1, it is characterized in that, described exhaust port (11) comprises the first curved wall (111) and the second curved wall (112) that are connected, described second curved wall (112) forms described concave arc surface, and the distance between one end away from described crescent of described second curved wall (112) and the axis of described exhaust port (11) is less than the distance between one end towards described crescent of described second curved wall (112) and the axis of described exhaust port (11).
3. compression assembly according to claim 2, is characterized in that, described second curved wall (112) is hyperbola with the track of the intersection of the plane at the axis place of described exhaust port (11).
4. compression assembly according to claim 3, is characterized in that, described hyperbola is y=1/x, wherein, and 0.25≤x≤2.
5. compression assembly according to claim 1, is characterized in that, the opening direction of described crescent is contrary with the opening direction of described concave arc surface.
6. compression assembly according to claim 5, is characterized in that, has angle between the string of a musical instrument of described crescent and the string of a musical instrument of described concave arc surface.
7. compression assembly according to claim 6, is characterized in that, described angle is in the scope of 0 ~ 5 °.
8. compression assembly according to claim 1, it is characterized in that, described compression assembly also comprises bent axle (40), and described bent axle (40) wears described upper flange (10), described cylinder (20) and described lower flange (30) successively.
9. compression assembly according to claim 1, it is characterized in that, described compression assembly also comprises fastening piece (50), and described fastening piece (50) wears described upper flange (10), described cylinder (20) and described lower flange (30) successively.
10. a rotary compressor, comprises compression assembly, it is characterized in that, the compression assembly of described compression assembly according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420823432.8U CN204371691U (en) | 2014-12-22 | 2014-12-22 | Compression assembly and there is its rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420823432.8U CN204371691U (en) | 2014-12-22 | 2014-12-22 | Compression assembly and there is its rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371691U true CN204371691U (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420823432.8U Active CN204371691U (en) | 2014-12-22 | 2014-12-22 | Compression assembly and there is its rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514722A (en) * | 2014-12-22 | 2015-04-15 | 重庆凌达压缩机有限公司 | Compressing assembly and rotary compressor with same |
| CN107044422A (en) * | 2016-09-18 | 2017-08-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body structure and compressor |
-
2014
- 2014-12-22 CN CN201420823432.8U patent/CN204371691U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514722A (en) * | 2014-12-22 | 2015-04-15 | 重庆凌达压缩机有限公司 | Compressing assembly and rotary compressor with same |
| CN107044422A (en) * | 2016-09-18 | 2017-08-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body structure and compressor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |