CN102748290B - Axial sealing mechanism of vortex compressor - Google Patents
Axial sealing mechanism of vortex compressor Download PDFInfo
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- CN102748290B CN102748290B CN201210277236.0A CN201210277236A CN102748290B CN 102748290 B CN102748290 B CN 102748290B CN 201210277236 A CN201210277236 A CN 201210277236A CN 102748290 B CN102748290 B CN 102748290B
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- seal ring
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Abstract
An axial sealing mechanism of a vortex compressor comprises a sealing plate, an inner sealing ring, an outer sealing ring and a fastening part for connecting the sealing plate and a partition plate. The outer sealing ring isolates a medium-pressure cavity from a low-pressure cavity, and the inner sealing ring isolates the medium-pressure cavity from a high-pressure cavity and isolates the high-pressure cavity from the low-pressure cavity. Pressure of the medium-pressure cavity and the high-pressure cavity pushes a static vortex disk to be attached to a dynamic vortex disk, and sealing of vortex roll end faces of the vortex disks is achieved.
Description
Technical field
The present invention relates to a kind of scroll compressor, the invention still further relates to a kind of axial seal technology of scroll compressor.
Background technique
As positive displacement compressor, scroll compressor has the advantages such as efficiency is high, volume is little, has been widely used in air compressing, air-conditioning and the field such as freezing.The application of axial elasticity sealing technique improves the sealing of scrollwork end face, improves the volumetric efficiency of compressor, due to its insensitive to axial dimension deviation, also reduces processing and the assembling difficulty of compressor.
Scroll compressor, comprises motor, bent axle, movable orbiting scroll, quiet whirlpool dish, anti-reverse mechanism, main shaft bolster, shell usually.The side of quiet whirlpool disk substrate is provided with the scrollwork along axis growth, and opposite side is provided with exhaust port, and the rotation of quiet whirlpool dish is limited, and radial displacement is limited, and axial direction is fixed or can moves in certain scope.The side of movable orbiting scroll substrate is provided with the scrollwork along axis growth, and opposite side is provided with protrusion features, has bearing hole in this protrusion features.Movable orbiting scroll and quiet whirlpool dish close through anti-reverse mechanism lotus root.Main shaft bolster is fixed on shell, is provided with bearing hole and thrust surface, this thrust surface supporting movable orbiting scroll.The rotor of bent axle and compressor electric motor is affixed, and its main journal is supported on the bearing hole of main shaft bolster, and the crank of bent axle connects with the bearing hole of movable orbiting scroll.When compressor electric motor rotates, the crank of bent axle drives the relatively quiet whirlpool of movable orbiting scroll to coil and makes nothing revolution motion in relative rotation, and the scrollwork of movable orbiting scroll and quiet whirlpool dish engages each other and forms multipair compression chamber, and this compression chamber moves certainly outside to inside along scrollwork, volume reduces gradually, thus realizes the compression to medium.
Its common implementation of the scroll compressor having axial elasticity to seal has following two kinds:
1. patent US 5,102, the 316 axial seal technology disclosing a kind of low pressure scroll compressor.The top of quiet whirlpool dish is provided with middle pressure chamber, chamber is pressed to be communicated with the compression chamber of vortex in this, be provided with floating seal plate, by to be installed in floating seal plate exterior seal ring by middle pressure chamber respectively with the low pressure of suction side and the high_voltage isolation of exhaust side, form the middle pressure chamber of relative closure, its pressure is relevant to the position of pressure of inspiration(Pi) and intercommunicating pore.During compressor operating, float to bulkhead sides under the pressure of floating seal plate in middle pressure chamber promotes, between its top and dividing plate end face, form sealing surface, by low voltage side and high pressure side isolation.Radial direction and the circumference of quiet whirlpool dish are limited, and axially can have certain slip along guide pin bushing.The rear support of movable orbiting scroll is in the thrust surface of main shaft bolster.During compressor operating, the pressure in middle pressure chamber and the pressure acting in conjunction of relief opening, axially push rim, quiet whirlpool to movable orbiting scroll and fit with it, can realize the flexible sealing of movable orbiting scroll and quiet whirlpool dish vortex ring end face.Axial Driving force suffered by the dish of quiet whirlpool is relevant to pressure of inspiration(Pi) and exhaust pressure, and this solution can adapt to different operating modes preferably.But the sealing surface formed when above-mentioned floating seal plate floats and between dividing plate end face is Metal Contact face, in assembly process, easily cause leakage because dividing plate welds the distortion caused.
2. patent application 200880106340 discloses the axial seal technology of another scroll compressor.The top of quiet whirlpool dish is provided with middle pressure chamber, chamber is pressed to be communicated with the compression chamber of vortex in this, the lower end surface of dividing plate is combined with interior exterior seal ring, by middle pressure chamber respectively with the low pressure of suction side and the high_voltage isolation of exhaust side, form the middle pressure chamber of relative closure, its pressure is relevant to the position of pressure of inspiration(Pi) and intercommunicating pore.Radial direction and the circumference of quiet whirlpool dish are limited, and axially can have certain slip.The rear support of movable orbiting scroll is in the thrust surface of main shaft bolster.During compressor operating, the pressure in middle pressure chamber and the pressure acting in conjunction of relief opening, axially push rim, quiet whirlpool to movable orbiting scroll and fit with it, can realize the flexible sealing of movable orbiting scroll and quiet whirlpool dish vortex ring end face.Comparatively simple in this solution structure, avoid the leakage in the top seal face described in last scheme, but because dividing plate is in assembly process, the position of its axis not easily ensures, excesssive gap between the end face causing quiet whirlpool to coil and dividing plate lower end surface and cause seal ring to be extruded, or quiet whirlpool dish compresses and causes motor to start by dividing plate.
Summary of the invention
The invention discloses a kind of axial sealing mechanism of scroll compressor, the fastening piece 13 comprising sealing plate 14, inner seal ring 12, exterior seal ring 15 and be connected with dividing plate 8 by sealing plate 14; Exterior seal ring 15 coil with quiet whirlpool respectively 7 and sealing plate 14 be combined and form sealing surface, chamber 17 and low-pressure cavity 21 is pressed in isolation, inner seal ring 12 and sealing plate 14 and quiet whirlpool coil 7 and are combined and form sealing surface, chamber 17 and hyperbaric chamber 16 is pressed in isolation, inner seal ring 12 is combined with sealing plate 14 and dividing plate 8 and forms sealing surface, isolation low-pressure cavity 21 and hyperbaric chamber 16.Middle pressure chamber 17 is communicated with the compression chamber of vortex by intercommunicating pore 18.During compressor operating, the pressure in middle pressure chamber 17 and hyperbaric chamber 16 acting in conjunction of relief opening, push movable orbiting scroll 6 vertically to by quiet whirlpool dish 7 and fit with it, can realize movable orbiting scroll 6 and the flexible sealing of 7 vortex ring end faces is coiled to reduce face leakage in quiet whirlpool.
Preferably, described exterior seal ring 15, comprises at least the first lip limit 15A and the second lip limit 15B, and the first lip limit 15A, the second lip limit 15B coil 7 respectively and be combined and form sealing surface with sealing plate 14 and quiet whirlpool, isolated in middle pressure chamber 17 and low-pressure cavity 21.
Preferably, described inner seal ring 12, comprises at least the 3rd lip limit 12A and the 4th lip limit 12B, and the protuberance 11 that the 3rd lip limit 12A and quiet whirlpool coil 7 is combined and forms sealing surface, is isolated in middle pressure chamber 17 and hyperbaric chamber 16; 4th lip limit 12B is placed between sealing plate 14 and dividing plate 8, and is connected by fastening piece 13 and compressed by the end face of sealing plate 14 and dividing plate 8 and form sealing surface by hyperbaric chamber 16 and low-pressure cavity 21 and isolate,
Preferably, the cross section of described exterior seal ring 15 is L shape, and being combined what form sealing surface with the first lip limit 15A is the lower end surface of sealing plate 14, and being combined what form sealing surface with the second lip limit 15B is the inner cylindrical surface that the circular groove arranged on 7 is coiled in quiet whirlpool.
The cross section of preferably described inner seal ring 12 is L shape, and being combined what form sealing surface with the 3rd lip limit 12A is the external cylindrical surface that 7 protuberances 11 are coiled in quiet whirlpool.
Preferably described exterior seal ring 15 is clipped between sealing plate 14 and fixed plate 22 in the mode of riveting or screw fastening.
Accompanying drawing illustrates:
Fig. 1: a kind of axial sealing mechanism of scroll compressor
The partial enlarged drawing of Fig. 2: Fig. 1
Embodiment
As shown in accompanying drawing 1-2, quiet whirlpool dish 7 has relief opening 16 to be communicated with the hyperbaric chamber on dividing plate 8 top, is provided with cylindrical projection 11 axially, and radial position and rotating in a circumferential direction is limited by part 4, axially has micro-gap to fluctuate.Movable orbiting scroll 6 coils 7 through cross slip-ring 2 and quiet whirlpool and connects, and can do nothing revolution motion in relative rotation by relatively quiet whirlpool dish 7, its scrollwork engages each other, and can form the compression chamber of the relative closure of at least one pair of.Quiet whirlpool is coiled 7 substrate sides and is provided with circular groove, is communicated with by the compression chamber of intercommunicating pore 18 with described relative closure, and sealing plate 14 is placed in this circular groove, presses chamber 17 with exterior seal ring 15 together with inner seal ring 12 in forming.Fit and form sealing surface in first lip limit 15A of exterior seal ring 15 and the lower end surface of sealing plate 14, the inner cylindrical surface that 7 circular grooves are coiled in the second lip limit 15B and the quiet whirlpool of exterior seal ring 15 is combined and forms sealing surface, and middle pressure chamber 17 and low-pressure cavity 21 isolate by this two sealing surface; 4th lip limit 12B of inner seal ring 12 is sandwiched between sealing plate 14 and dividing plate 8, and is locked by fastening piece 13 and form sealing surface, isolated high-voltage chamber 16 and low-pressure cavity 21.The external cylindrical surface that the cylindrical projection 11 of 7 is coiled in 3rd lip limit 12A and the quiet whirlpool of inner seal ring 12 is combined and forms sealing surface, presses chamber 17 and hyperbaric chamber 16 in isolation.Under the acting in conjunction of the pressure of quiet whirlpool dish 7 in middle pressure chamber 17 and hyperbaric chamber 16 pressure, overcome the gas force in scrollwork compression chamber, push quiet whirlpool dish 7 to movable orbiting scroll 6, thus realize the sealing between quiet whirlpool dish 7 and movable orbiting scroll 6 scrollwork end face.For preventing when compressor start, because of the first lip limit 15A of exterior seal ring 15 and the lower end surface of sealing plate 14 excesssive gap and pressure reduction cannot be formed cause exterior seal ring 15 not float, fixed plate 22 can be set, to rivet or the first lip limit 15A of exterior seal ring 15 is clamped between the lower end surface of fixed plate 22 and sealing plate 14 by the mode of screw threads for fastening.
Claims (6)
1. a scroll compressor, comprise motor (20), bent axle (19), movable orbiting scroll (6), quiet whirlpool dish (7), cross slip-ring (2), main shaft bolster (1), dividing plate (8), shell (3) and axial sealing mechanism; Described motor (20), bent axle (19), movable orbiting scroll (6), quiet whirlpool dish (7), cross slip-ring (2), main shaft bolster (1) is all in the low voltage side be communicated with compressor air suction mouth (5); Quiet whirlpool dish (7) circumference is limited, and axially has micro-gap to realize axial float, and movable orbiting scroll (6) and quiet whirlpool dish (7), through cross slip-ring (2) coupling, can form the compression chamber of the relative closure of at least one pair of; Axial sealing mechanism coils (7) and combines the middle pressure chamber (17) being formed and be communicated with described compression chamber with quiet whirlpool, it is characterized in that: the fastening piece (13) that described axial sealing mechanism comprises sealing plate (14), inner seal ring (12), exterior seal ring (15) and is connected with dividing plate (8) by sealing plate (14); Exterior seal ring (15) coils (7) and sealing plate (14) respectively and combines and form sealing surface with quiet whirlpool, chamber (17) and low-pressure cavity (21) is pressed in isolation, inner seal ring (12) and sealing plate (14) and quiet whirlpool are coiled (7) and are combined and form sealing surface, chamber (17) and hyperbaric chamber (16) is pressed in isolation, inner seal ring (12) combines with sealing plate (14) and dividing plate (8) and forms sealing surface, isolation low-pressure cavity (21) and hyperbaric chamber (16).
2. scroll compressor according to claim 1, described exterior seal ring (15) comprises at least the first lip limit (15A) and the second lip limit (15B), first lip limit (15A), the second lip limit (15B) are coiled (7) respectively and are combined and form sealing surface with sealing plate (14) and quiet whirlpool, by middle pressure chamber (17) and low-pressure cavity (21) isolation.
3. scroll compressor according to claim 1, described inner seal ring (12), comprise at least the 3rd lip limit (12A) and the 4th lip limit (12B), the protuberance (11) that (7) coils in 3rd lip limit (12A) and quiet whirlpool combines and forms sealing surface, middle pressure chamber (17) and hyperbaric chamber (16) is isolated; 4th lip limit (12B) is placed between sealing plate (14) and dividing plate (8), and is connected by fastening piece (13) and compressed by the end face of sealing plate (14) and dividing plate (8) and form sealing surface and hyperbaric chamber (16) and low-pressure cavity (21) are isolated.
4. scroll compressor according to claim 2, the cross section of described exterior seal ring (15) is L shape, combining what form sealing surface with the first lip limit (15A) is the lower end surface of sealing plate (14), and combining what form sealing surface with the second lip limit (15B) is the inner cylindrical surface that (7) the upper circular groove arranged is coiled in quiet whirlpool.
5. scroll compressor according to claim 3, the cross section of described inner seal ring (12) is L shape, and combining what form sealing surface with the 3rd lip limit (12A) is the external cylindrical surface that (7) protuberance (11) is coiled in quiet whirlpool.
6. scroll compressor according to claim 4, described exterior seal ring (15) is clipped between sealing plate (14) and fixed plate (22) in the mode of riveting or screw fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210277236.0A CN102748290B (en) | 2012-08-07 | 2012-08-07 | Axial sealing mechanism of vortex compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210277236.0A CN102748290B (en) | 2012-08-07 | 2012-08-07 | Axial sealing mechanism of vortex compressor |
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| CN102748290A CN102748290A (en) | 2012-10-24 |
| CN102748290B true CN102748290B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210277236.0A Active CN102748290B (en) | 2012-08-07 | 2012-08-07 | Axial sealing mechanism of vortex compressor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185615A (en) * | 2019-04-29 | 2019-08-30 | 苏州为山之环境技术有限公司 | Seal assembly with noise-reducing structure and the screw compressor fixed with diaphragm plate |
| CN114215750B (en) * | 2021-11-24 | 2024-01-23 | 苏州为山之环境技术有限公司 | Axial sealing mechanism and scroll compressor comprising same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828022A (en) * | 2005-03-04 | 2006-09-06 | 科普兰公司 | Scroll machine with single plate floating seal |
| CN101046204A (en) * | 2006-03-24 | 2007-10-03 | 爱默生气候技术公司 | Scroll machine using floating seal with backer |
| CN202954972U (en) * | 2012-08-07 | 2013-05-29 | 苏州英华特制冷设备技术有限公司 | Axial seal mechanism of scroll compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8033803B2 (en) * | 2007-09-11 | 2011-10-11 | Emerson Climate Technologies, Inc. | Compressor having improved sealing assembly |
| CN102588277B (en) * | 2008-05-30 | 2014-12-10 | 艾默生环境优化技术有限公司 | Compressor having capacity modulation system |
-
2012
- 2012-08-07 CN CN201210277236.0A patent/CN102748290B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828022A (en) * | 2005-03-04 | 2006-09-06 | 科普兰公司 | Scroll machine with single plate floating seal |
| CN101046204A (en) * | 2006-03-24 | 2007-10-03 | 爱默生气候技术公司 | Scroll machine using floating seal with backer |
| CN202954972U (en) * | 2012-08-07 | 2013-05-29 | 苏州英华特制冷设备技术有限公司 | Axial seal mechanism of scroll compressor |
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| CN102748290A (en) | 2012-10-24 |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 215558 No. 68, Southeast Avenue, Jiangsu, Changshou City Applicant after: Suzhou Invotech Scroll Technologies Co., Ltd. Address before: 215558 No. 68, Southeast Avenue, Jiangsu, Changshou City Applicant before: Suzhou Yinghuate Refrigeration Equipment Technology Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SUZHOU YINGHUATE REFRIGERATION EQUIPMENT TECHNOLOGY CO., LTD. TO: SUZHOU YINGHUATE SCROLL TECHNOLOGY CO., LTD. |
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Address after: 215558 No. 68, Southeast Avenue, Jiangsu, Changshou City Patentee after: Suzhou yinghuate Vortex Technology Co., Ltd Address before: 215558 No. 68, Southeast Avenue, Jiangsu, Changshou City Patentee before: SUZHOU INVOTECH SCROLL TECHNOLOGIES Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |