CN101539147A - Unloading cylinder and rotary compressor using same - Google Patents
Unloading cylinder and rotary compressor using same Download PDFInfo
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- CN101539147A CN101539147A CN200910138405A CN200910138405A CN101539147A CN 101539147 A CN101539147 A CN 101539147A CN 200910138405 A CN200910138405 A CN 200910138405A CN 200910138405 A CN200910138405 A CN 200910138405A CN 101539147 A CN101539147 A CN 101539147A
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- cylinder
- slip sheet
- groove
- vane slot
- compensating groove
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Abstract
The invention relates to an unloading cylinder and a rotary compressor using same. The unloading cylinder is provided with a penetrated cylinder chamber in the middle thereof and a slip sheet groove thereon, wherein an air inlet and an air outlet are arranged respectively at two sides of the slip sheet groove, and a narrow unloading groove which is between the slip sheet groove and the air inlet penetrates the two end surfaces of the cylinder and provides an opening in the cylinder chamber. The rotary compressor using the cylinder presses the slip sheet by the gas of a high-pressure chamber to deform the slip sheet which inclines to and contacts with one side of the slip sheet groove adjacent to the a low-pressure chamber, during the compression and exhaust processes. Due to the presence of the unloading groove, the slip sheet groove approaches to the unloading groove, generates elastic deformation, and inclines to one side of the low-pressure, so that the stress can be spread to the longer contact surface with larger contact area to reduce the abrasion between the slip sheet and slip sheet groove and the influence on the performance of the compressor, and prolong the service life of the compressor.
Description
Technical field
The present invention relates to technical field of refrigeration compressors, relate in particular to the off-load cylinder and use the rotary compressor of this cylinder.
Background technique
Compressor is that compression refrigerant makes it participate in the circuit nucleus equipment in the air-conditioning system, rotary compressor is a kind of compressor commonly used, the work of compression refrigerant is to finish in the sealed cylinder block assembly of compressor, housing assembly includes upper flange, lower flange and cylinder 1, as Fig. 1 (the part accessory does not show), upper flange, lower flange is arranged on cylinder 1 two ends and encloses seal chamber, be provided with eccentric rotor 3 in the cylinder chamber, under slide plate 24 compartmentations that vane slot 2 is set, driven by motor eccentric rotor 3 rotates a week, gas to high pressure converted, is discharged cylinder 1 by relief opening 22 by low pressure in the gas compression chamber when suitable high pressure.
In the work done compression process, eccentric rotor 3 is divided into two independently Seal cages with the seal chamber that constitutes under slide plate 24 effects, the space that slide plate 24 1 sides are provided with relief opening 22 is the hyperbaric chamber 25 of pressurized gas, and the space that slide plate 24 opposite sides are provided with suction port 21 is the low-pressure cavity 26 of air inlet; When compression and exhaust, hyperbaric chamber 25 gases compressing slide plate 24 makes slide plate 24 distortion, and slide plate 24 is to the lopsidedness by low-pressure cavity 26 of vane slot 2, slide plate 24 just with vane slot 2 by a side contacts of low-pressure cavity 26, vane slot 2 can not corresponding deformation, off-load, and stress concentrates on the surface of contact of less L section (see figure 1), and area of contact is less, accelerate the wearing and tearing of slide plate 24 and vane slot 2 easily, influence compressor performance, produce unfavorable slip, shorten the working life of compressor.For the compressor of high pressure ratio, it is more obvious that this phenomenon just shows especially.
Summary of the invention
The present invention be directed to present rotary compressor in compression process slide plate just with the serial problem of the little initiation of vane slot area of contact, and provide a kind of rotary compressor that solves the off-load cylinder of this type of problem and use this cylinder.
For reaching above purpose, adopt following technological scheme:
A kind of off-load cylinder, described cylinder central authorities are provided with the cylinder chamber of perforation, and cylinder is provided with vane slot, and the both sides of vane slot are respectively arranged with suction port and relief opening; Cylinder is provided with a long and narrow compensating groove between vane slot and suction port, described compensating groove connects to the both ends of the surface of cylinder and opening is set in cylinder chamber.
The root of wherein said compensating groove is provided with the fillet position.
A kind of rotary compressor, it includes housing assembly, constitute housing assembly and include upper and lower flange, cylinder, slide plate and eccentric rotor, slide plate is arranged in the vane slot of cylinder, eccentric rotor is arranged in the cylinder chamber, upper and lower flange seal is arranged on the upper and lower end face of cylinder, is respectively arranged with suction port and relief opening on the both sides of vane slot; Cylinder is provided with a long and narrow compensating groove between vane slot and suction port, described compensating groove connects to the both ends of the surface of cylinder and opening is set in cylinder chamber.
The root of wherein said compensating groove is provided with the fillet position.
Beneficial effect of the present invention is: because off-load cylinder provided by the invention is provided with a long and narrow compensating groove between vane slot and suction port, compensating groove connects to the both ends of the surface of cylinder and opening is set in cylinder chamber; When this this cylinder was used rotary compressor: rotary compressor was in compression and exhaust process, hyperbaric chamber gas compressing slide plate, make the slide plate distortion, slide plate is to the lopsidedness by low-pressure cavity of vane slot, slide plate just with vane slot by a side contacts of low-pressure cavity, because of connecting the existence of cylinder to the compensating groove of cylinder chamber inner opening, vane slot is near the lopsidedness of compensating groove generation resiliently deformable to low-pressure cavity, stress just can be shared on the surface of contact of long section, area of contact is bigger, can reduce the wearing and tearing of slide plate and vane slot, less to the compressor performance influence, the working life of prolongation compressor.
Description of drawings
Fig. 1 is the part accessory partial schematic diagram of the rotary compressor housing assembly of prior art;
Fig. 2 is a structural representation of air cylinder of the present invention;
Fig. 3 is the part accessory partial schematic diagram of rotary compressor housing assembly of the present invention;
Embodiment
2,3 couples of the present invention further specify below in conjunction with accompanying drawing:
A kind of cylinder, as shown in Figure 2, cylinder 1 central authorities are provided with the cylinder chamber 11 of perforation, and cylinder 1 is provided with vane slot 2, and the both sides of vane slot 2 are respectively arranged with suction port 21 and relief opening 22; Cylinder 1 is provided with a long and narrow compensating groove 23 at vane slot 2 and 21 of suction ports, and compensating groove 23 connects to the both ends of the surface of cylinder 1 and in cylinder chamber 11 opening is set, and the root of compensating groove 23 is provided with fillet position 231.
A kind of rotary compressor, it includes housing assembly, see Fig. 3 (the part accessory does not show), constitute housing assembly and include upper and lower flange, cylinder 1, slide plate 24 and eccentric rotor, slide plate 24 is arranged in the vane slot 2 of cylinder 1, eccentric rotor is arranged in the cylinder chamber 11, and upper and lower flange seal is arranged on the upper and lower end face of cylinder 1, is respectively arranged with suction port 21 and relief opening 22 on the both sides of vane slot 2; Cylinder 1 is provided with a long and narrow compensating groove 23 at vane slot 2 and 21 of suction ports, and described compensating groove 23 connects to the both ends of the surface of cylinder 1 and in cylinder chamber 11 opening is set, and the root of compensating groove 23 is provided with fillet position 231.
At rotary compressor in the work done compression process, eccentric rotor is divided into two independently Seal cages with cylinder chamber 11 under slide plate 24 effects, the space that slide plate 24 1 sides are provided with relief opening 22 is the hyperbaric chamber 25 of pressurized gas, the space that slide plate 24 opposite sides are provided with intakeport is the low-pressure cavity 26 of air inlet, in compression and exhaust process, hyperbaric chamber 25 gases compressing slide plate 24, make slide plate 24 distortion, slide plate 24 is to the lopsidedness by low-pressure cavity 26 of vane slot 2, slide plate 24 just with vane slot 2 by a side contacts of low-pressure cavity 26, because cylinder 1 is provided with the compensating groove 23 of consistent ventilation cylinder 1 to cylinder chamber 11 inner openings at vane slot 2 and 21 of suction ports, the lopsidedness of resiliently deformable to low-pressure cavity 26 takes place near compensating groove 23 in vane slot 2, stress just can be shared on the surface of contact of longer L ' section (see figure 3), area of contact is bigger, can reduce the wearing and tearing of slide plate 24 and vane slot 2, less to the compressor performance influence, the working life of prolongation compressor.In addition, in order to reduce friction, system imports refrigeration oil in cylinder chamber 11, but too much refrigeration oil can influence the reserves of compress gas reduces volumetric efficiency, the compensating groove of offering on cylinder 1 23 can the storage compartment refrigeration oil, increase the reserves of pressurized gas, improve the volumetric efficiency of compressor.The present invention is particularly useful for R410a refrigerant, frequency conversion and the rotary compressor of high compression ratio more.
The above embodiment, it is preferred embodiments of the present invention, be not to limit the scope of the present invention,, all should be included in the patent claim of the present invention so all equivalences of doing according to the described structure of the present patent application claim, feature and principle change or modify.
Claims (4)
1. off-load cylinder, described cylinder (1) central authorities are provided with the cylinder chamber (11) of perforation, and cylinder (1) is provided with vane slot (2), and the both sides of vane slot (2) are respectively arranged with suction port (21) and relief opening (22); It is characterized in that described cylinder (1) is provided with a compensating groove (23) between vane slot (2) and suction port (21), described compensating groove (23) connects to the both ends of the surface of cylinder (1) and in cylinder chamber (11) opening is set.
2. off-load cylinder according to claim 1 is characterized in that, the root of described compensating groove (23) is provided with fillet position (231).
3. rotary compressor, it includes housing assembly, constitute housing assembly and include upper and lower flange, cylinder (1), slide plate (24) and eccentric rotor (3), slide plate (24) is arranged in the vane slot (2) of cylinder (1), eccentric rotor (3) is arranged in the cylinder chamber (11), upper and lower flange seal is arranged on the upper and lower end face of cylinder (1), is respectively arranged with suction port (21) and relief opening (22) on the both sides of vane slot (2); It is characterized in that described cylinder (1) is provided with a compensating groove (23) between vane slot (2) and suction port (21), described compensating groove (23) connects to the both ends of the surface of cylinder (1) and in cylinder chamber (11) opening is set.
4. rotary compressor according to claim 3 is characterized in that, the root of described compensating groove (23) is provided with fillet position (231).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910138405A CN101539147A (en) | 2009-04-30 | 2009-04-30 | Unloading cylinder and rotary compressor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910138405A CN101539147A (en) | 2009-04-30 | 2009-04-30 | Unloading cylinder and rotary compressor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101539147A true CN101539147A (en) | 2009-09-23 |
Family
ID=41122496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910138405A Pending CN101539147A (en) | 2009-04-30 | 2009-04-30 | Unloading cylinder and rotary compressor using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101539147A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573622A (en) * | 2013-10-31 | 2014-02-12 | 广东美芝制冷设备有限公司 | Rotating compressor and air cylinder thereof |
-
2009
- 2009-04-30 CN CN200910138405A patent/CN101539147A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573622A (en) * | 2013-10-31 | 2014-02-12 | 广东美芝制冷设备有限公司 | Rotating compressor and air cylinder thereof |
| CN103573622B (en) * | 2013-10-31 | 2016-06-29 | 广东美芝制冷设备有限公司 | Rotary compressor and cylinder thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hao Wei Inventor after: Xie Lichang Inventor before: Chen Jiong Inventor before: Fan Shaowen Inventor before: Chen Disong Inventor before: Cao Zhenwen Inventor before: Huang Yun Inventor before: Yin Bingkui Inventor before: Yu Shishun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN JIONG FAN SHAOWEN CHEN DISONG CAO ZHENWEN HUANG YUN YIN BINGKUI YU SHISHUN TO: HAO WEI XIE LICHANG |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090923 |