CN102072160A - Exhaust device of rolling rotor compressor pump body - Google Patents
Exhaust device of rolling rotor compressor pump body Download PDFInfo
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- CN102072160A CN102072160A CN 201110029659 CN201110029659A CN102072160A CN 102072160 A CN102072160 A CN 102072160A CN 201110029659 CN201110029659 CN 201110029659 CN 201110029659 A CN201110029659 A CN 201110029659A CN 102072160 A CN102072160 A CN 102072160A
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Abstract
The invention discloses an exhaust device of a rolling rotor compressor pump body, mainly comprising an air cylinder provided with a round pore passage, a bent valve plate, a lift limiter with steps, an air cylinder end cover with a stepped exhaust hole, and a gasket, wherein the valve plate, the gasket and the lift limiter are installed in the pore passage of the air cylinder; after the compressor is assembled, the upper end cover of the air cylinder, the lower end cover of the air cylinder and the shell of the compressor seal the pore channel on the air cylinder to form an exhaust space which takes an opened valve plate as an inlet and the stepped exhaust hole on the air cylinder end cover as an outlet. The exhaust device has the advantages of small exhaust loss, low exhaust noise and being easy in processing and assembly.
Description
Technical field
The invention belongs to the rotary compressor for refrigerant technical field, particularly a kind of rolling rotor type compressor pump housing venting gas appliance.
Background technique
The widely-used of refrigeration air-conditioner makes it become one of capital equipment of energy consumption, and high efficiency, low noise are the main targets of refrigeration compressor technical development.Existing result of study shows that pump housing venting gas appliance has direct influence to the efficient and the noise of compressor.The pump housing of rolling rotor type compressor is made up of cylinder, bent axle, roll sleeve, cylinder upper end cap, cylinder lower end cap, slide plate and sliding blade spring.Be compressed gas discharge pump chamber for making, generally be assembled into venting gas appliance by the exhaust port on the pump housing, valve block and lift limiter, when the gas pressure in the pump chamber was higher than the chamber pressure outside, valve block was opened to discharge gas; Otherwise valve block is closed the anti-pump chamber that flows into of pressurized gas to prevent that pump chamber is outer.The exhaust port space is the chief component of pump housing clearance volume, have clearance expansion-loss and exhaust air flow loss again, and the position of exhaust port also can influence the turbulent flow compression flow of compression intracavity gas and the overcompression of the interior gas of pump chamber clearance volume; Exhaust valve plate has certain rigidity simultaneously, there are overcompression loss and leakage loss when postponing to open and close, and the vibration of the turbulent flow of gas stream when valve block, valve block, valve block are main exhaust sound sources to bouncing of valve seat and limiter etc., also will consider the complexity of venting gas appliance processing and assembling in addition.
Existing pump housing venting gas appliance generally adopts the form that leaf valve is set on cylinder end piece, as shown in Figure 1, this device comprises cylinder 1, cylinder end piece 2, valve block 3, lift limiter 4 and rivet 6.Exhaust port 5 comprises otch 5a on the cylinder and the exhaust port 5b on the cylinder end piece, and valve block adopts the tongue-shaped reed valve.The problem that exists mainly contains: clearance volume is big, exhaust air flow channels is long, and pump housing exhaust loss is big; Valve block is exposed to outside the pump housing, and exhaust sound is big, noise reduction generally need be set cover mute; The difficulty of processing of valve block installation groove is big on the cylinder end piece.
A kind of follow-on pump housing venting gas appliance adopts the form that the cambered surface valve is set on cylinder, as shown in Figure 2, this device comprises exhaust port 8, cambered surface valve 9 and the columnar lift limiter 10 on the cylinder.Its advantage is the sectional area that has increased the exhaust passage when reducing clearance volume, has effectively reduced exhaust loss.The problem that exists mainly is that part and matching surface are cambered surface, and processing and assembling difficulty are big, use less at present.
Summary of the invention
At the deficiencies in the prior art part, it is little to the invention provides a kind of exhaust loss, and exhaust sound is low, and is easy to the rolling rotor type compressor pump housing venting gas appliance of processing and assembling.
Pump housing venting gas appliance provided by the present invention for achieving the above object mainly comprises cylinder, valve block, lift limiter, cylinder end piece, pad.Described valve block, lift limiter, pad are fixed in the installation duct of cylinder, and the mode of installing and fixing can adopt riveted joint, be threaded or the push rod compacted form, and valve block and lift limiter are parallel to cylinder axis to installation.
Described cylinder is provided with circular duct, comprise and be positioned on the exhaust position casing wall and the through hole parallel with cylinder axis, and the vent of axis and this through hole orthogonal axe and the duct is installed, vent and axis that the duct is installed at grade and the central plane of this plane and cylinder vane slot acutangulate.
Vent on the described cylinder is a ladder hole, and little one section of diameter communicates with cylinder inner wall and is exhaust port, and the ladder place forms the annulus sealing surface between cylinder inner wall and through hole.Exhaust passage on the cylinder is provided with at least one.
Installation duct on the described cylinder is the ladder blind hole, one section tapped hole that diameter is big for communicating with cylinder outer wall, the ladder place forms annulus valve block attachment face between cylinder inner wall and through hole, this valve block attachment face is parallel with the annulus sealing surface of exhaust port or at grade.
Described valve block is provided with bending, and its bending angle is the obtuse angle, the bending part rounding off, and the valve block sealing surface and the face that installs and fixes are at grade or on two parallel planes after the bending.
Described lift limiter is provided with step, and its step matches with bending on the valve block, contacts smoothly with lift limiter when guaranteeing that valve block is opened.
Described cylinder end piece is provided with exhaust port, this exhaust port be with cylinder on the coaxial shoulder hole of through hole.
Described pad is used to adjust valve block seal clearance of annulus sealing surface on valve block sealing surface and cylinder when static.
The invention has the beneficial effects as follows:
(1) through hole on the cylinder passes through mutually with the ladder vent, the axis of vent and vane slot central plane are acute angle, further reduce clearance volume, or helped under the situation that does not increase clearance volume, increasing the sectional area of exhaust port, effectively reduced exhaust loss.
(2) pump housing venting gas appliance is after compressor assembling is finished, and the duct on the cylinder is closed by valve block, compressor housing and cylinder upper and lower end cap seal, and having formed when opening with valve block is inlet, and cylinder upper end cap exhaust port is the exhaust air flow space of outlet.This exhaust space is equivalent to the resistant noise-reducing device for gas flow, subdued the pressure pulsation of air-flow.Simultaneously, valve block is closed in this space, helps the inhibition to valve plate movement or vibration noise propagation.Therefore, pump housing venting gas appliance provided by the invention helps reducing the exhaust sound of compressor pump.
(3) processing in duct is the processing of circular port on the cylinder, realizes easily.The bending technique of valve block and lift limiter is also simpler.Valve block sealing surface and the face of installing and fixing are the plane, the difficulty that has reduced assembling and adjusted.Especially omitted processing, made the present invention be easier to processing and assembling, reduced manufacture cost valve block seat complex-shaped on the cylinder upper end cap.
Description of drawings
Fig. 1 is the venting gas appliance structural representation of available technology adopting leaf valve
Fig. 2 is the venting gas appliance structural representation of available technology adopting cambered surface valve
Fig. 3 is an embodiment of the invention pump housing venting gas appliance structural representation
Fig. 4 is an embodiment of the invention pump housing venting gas appliance generalized section
Fig. 5 is that the cylinder axis of the embodiment of the invention is to generalized section
Fig. 6 is the cylinder vent road generalized section of the embodiment of the invention
Fig. 7 is the cylinder mounting holes road generalized section of the embodiment of the invention
Fig. 8 is the valve block plan view of the embodiment of the invention
Fig. 9 is the plan view of Fig. 8
Figure 10 is the lift limiter schematic representation of the embodiment of the invention
Among Fig. 1: 1. cylinder, 2. cylinder end piece, 3. valve block, 4. lift limiter, 5. exhaust port, 6. rivet
Among Fig. 2: 7. roll sleeve, 8. exhaust port, 9. valve block; 10. lift limiter, 11. slide plates
Among Fig. 3: 12. cylinders, 13. cylinder upper end caps, 14. cylinder lower end caps
Among Fig. 4: 15. pads, 16. valve blocks, 17. lift limiters, 18. rivets, 19. push rods
Among Fig. 5: 20. through holes, 21. vents, 22. install the duct
Among Fig. 6: 21a. exhaust port, 21b. annulus sealing surface
Among Fig. 7: 22a. annulus valve block attachment face, 22b. valve block installing technological hole
Among Fig. 8: 23. valve block sealing surfaces, 24. install and fix face
Among Fig. 9: the boss on 25. lift limiters.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 3, Figure 4, pump housing venting gas appliance provided by the invention comprises cylinder 12, valve block 16, lift limiter 17, cylinder upper end cap 13, cylinder lower end cap 14, pad 15, rivet 18 and push rod 19.Be processed with circular vent 21 and duct 22 is installed on the cylinder wall of this venting gas appliance, valve block 16, lift limiter 17, pad 15 usefulness rivets 18 and push rod 19 are fixed in the installation duct 22 of cylinder 12; Valve block 16 and lift limiter 17 are parallel to cylinder 12 axially to be installed, valve block sealing surface 23 and install and fix face 24 and be plane when static; After the compressor assembling was finished, cylinder upper end cap 13, cylinder lower end cap 14 and compressor case had sealed the duct of cylinder 12, were inlet when forming with valve block 16 unlatchings, and the ladder-type exhaust port on the cylinder upper end cap is the exhaust space of outlet.This venting gas appliance working procedure is to be compressed to push valve block 16 open after gas pressure raises and enter above-mentioned exhaust space, and the ladder-type exhaust port on cylinder upper end cap 13 is discharged the pump housing again.
Circular duct on the described cylinder 12 comprises and is positioned on the exhaust position casing wall and the through hole 20 parallel with cylinder axis, and the vent 21 of axis and this through hole orthogonal axe and duct 22 is installed.The vent 21 of present embodiment cylinder has two, is symmetrically distributed along cylinder-bore axis, and the axis that duct 22 is installed is positioned on the central plane of cylinder, as shown in Figure 5.Vent 21 and axis that duct 22 is installed at grade and with the central plane of cylinder vane slot α in an acute angle, as shown in Figure 6.When the rolling rotor type compressor pump housing exhaust of the embodiment of the invention finishes, in the active chamber still some gas be not discharged from, form clearance volume, described sharp angle then can have certain influence to the clearance volume of this clearance volume and exhaust port portion, and the angle of adjusting sharp angle under the situation that other parameter is determined can obtain minimum clearance volume.
As shown in Figure 6, the vent 21 on the described cylinder is a ladder hole, and little one section of diameter communicates with cylinder inner wall and is exhaust port 21a, and the ladder place forms annulus sealing surface 21b between cylinder inner wall and through hole.Owing to vent passes through mutually with through hole, compare with cambered surface valve exhaust apparatus structure further to have reduced clearance volume, shown in blacking position among Fig. 6.
As shown in Figure 7, installation duct 22 on the described cylinder is the ladder blind hole, one section tapped hole that diameter is big for communicating with cylinder outer wall, the ladder place forms annulus valve block attachment face 22a between cylinder inner wall and through hole, this valve block attachment face is parallel with the annulus sealing surface of exhaust port or at grade; The end conduct that diameter is little is that valve block installing technological hole 22b is to hold rivet head.
As shown in Figure 8, described valve block 16 has the bending of two places, cooperates with double pore 21, and the bending angle is the obtuse angle, bending part rounding off, valve block sealing surface 23 and install and fix face 24 at grade or on two parallel planes after the bending.Between the annulus sealing surface 21b of cylinder upper air-vent and annulus valve block attachment face 22a is the circular arc inwall of through hole 20, and the effect of bending is to make valve block 16 to stride across this section circular arc inwall.
As shown in Figure 9, lift limiter 17 is provided with the step 25 that cooperates with bending on the valve block 16, contacts and limit its lift when guaranteeing that valve block is opened smoothly with lift limiter.
Exhaust port on the cylinder upper end cap 13 is a stepped shaft and coaxial with the through hole 20 on the cylinder, helps reducing the flow resistance at this place.
With respect to the leaf valve venting gas appliance structure on the cylinder end piece, the embodiment of the invention can make the clearance volume of compressor pump reduce 60%, and pump housing efficient improves 2.5%.
Claims (7)
1. a rolling rotor type compressor pump housing venting gas appliance mainly comprises cylinder, valve block, lift limiter, cylinder end piece, pad; It is characterized in that described valve block, lift limiter, pad are fixed in the installation duct of cylinder, and valve block and lift limiter are parallel to cylinder axis to installation.
2. rolling rotor type compressor pump housing venting gas appliance according to claim 1, it is characterized in that described cylinder is provided with circular duct, this duct comprises and is positioned on the exhaust position casing wall and the vent of the through hole parallel with cylinder axis and axis and this through hole orthogonal axe and the duct is installed, vent and axis that the duct is installed at grade and the central plane of this plane and cylinder vane slot acutangulate.
3. rolling rotor type compressor pump housing venting gas appliance according to claim 2, it is characterized in that the vent on the described cylinder is a ladder hole, little one section of diameter communicates with cylinder inner wall and is exhaust port, and the ladder place forms the annulus sealing surface between cylinder inner wall and through hole; Exhaust passage on the cylinder is provided with at least one.
4. rolling rotor type compressor pump housing venting gas appliance according to claim 1, it is characterized in that the installation duct on the described cylinder is the ladder blind hole, one section tapped hole that diameter is big for communicating with cylinder outer wall, the ladder place forms ring valve block attachment face between cylinder inner wall and through hole, this valve block attachment face is parallel with the annulus sealing surface of exhaust port or at grade.
5. rolling rotor type compressor pump housing venting gas appliance according to claim 1, it is characterized in that described valve block has bending, the bending angle is the obtuse angle, the bending part rounding off, and the valve block sealing surface and the face that installs and fixes are at grade or on two parallel planes after the bending.
6. rolling rotor type compressor pump housing venting gas appliance according to claim 1 is characterized in that having step on the described lift limiter, and this step matches with bending on the valve block.
7. rolling rotor type compressor pump housing venting gas appliance according to claim 1 is characterized in that described cylinder end piece is provided with exhaust port, this exhaust port be with cylinder on the coaxial shoulder hole of through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100296596A CN102072160B (en) | 2011-01-27 | 2011-01-27 | Exhaust device of rolling rotor compressor pump body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100296596A CN102072160B (en) | 2011-01-27 | 2011-01-27 | Exhaust device of rolling rotor compressor pump body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102072160A true CN102072160A (en) | 2011-05-25 |
| CN102072160B CN102072160B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100296596A Active CN102072160B (en) | 2011-01-27 | 2011-01-27 | Exhaust device of rolling rotor compressor pump body |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4253805A (en) * | 1978-04-11 | 1981-03-03 | Audi Nsu Auto Union Aktiengesellschaft | Rotary compressor |
| CN1637298A (en) * | 2003-12-26 | 2005-07-13 | 三星电子株式会社 | Compressor |
| JP2008280862A (en) * | 2007-05-08 | 2008-11-20 | Calsonic Kansei Corp | Compressor |
| CN201436395U (en) * | 2009-06-19 | 2010-04-07 | 广东美芝制冷设备有限公司 | Exhaust device of a closed type rotating compressor |
-
2011
- 2011-01-27 CN CN2011100296596A patent/CN102072160B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4253805A (en) * | 1978-04-11 | 1981-03-03 | Audi Nsu Auto Union Aktiengesellschaft | Rotary compressor |
| CN1637298A (en) * | 2003-12-26 | 2005-07-13 | 三星电子株式会社 | Compressor |
| JP2008280862A (en) * | 2007-05-08 | 2008-11-20 | Calsonic Kansei Corp | Compressor |
| CN201436395U (en) * | 2009-06-19 | 2010-04-07 | 广东美芝制冷设备有限公司 | Exhaust device of a closed type rotating compressor |
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| Publication number | Publication date |
|---|---|
| CN102072160B (en) | 2012-07-04 |
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Address after: 110819 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Patentee after: Northeastern University Patentee after: Shenyang CATIC electromechanical SANYO refrigeration equipment Co., Ltd. Address before: 110819 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Patentee before: Northeastern University Patentee before: China Resources (Shenyang) Sanyo Compressor Co., Ltd. |