CN201486865U - Unloading cylinder and rotary compressor using same - Google Patents
Unloading cylinder and rotary compressor using same Download PDFInfo
- Publication number
- CN201486865U CN201486865U CN2009201503252U CN200920150325U CN201486865U CN 201486865 U CN201486865 U CN 201486865U CN 2009201503252 U CN2009201503252 U CN 2009201503252U CN 200920150325 U CN200920150325 U CN 200920150325U CN 201486865 U CN201486865 U CN 201486865U
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- China
- Prior art keywords
- cylinder
- slot
- unloading
- vane slot
- compensating groove
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to an unloading cylinder and a rotary compressor using the same. The center of unloading cylinder is provided with a through cylinder cavity; the cylinder is provided with a slip sheet slot; the two sides of the slip sheet slot are respectively provided with an air inlet and an air outlet; the cylinder is provided with a long and narrow unloading slot between the slip sheet slot and the air inlet; the unloading slot is communicated with the two ends of the cylinder and is provided with an opening to the internal part of the cylinder. The rotary compressor using the unloading cylinder is provided; in the processes of compression and air exhausting, gas in a high pressure chamber presses the slip sheets to deform the slip sheets, and the slip sheets incline to and then contact the side of the slip sheet slot close to a low-pressure cavity; because the existence of the unloading slot, the slip sheet slot close to the unloading slot has an elastic deformation and inclines to the side of the slip sheet slot close to a low-pressure cavity; the stress can be spread on the contact surface of the longer section; thus, the contact area is larger, which can reduce the abrasion of the slip sheets and the slip sheet slot, have small influence on the performance of the compressor, and prolong the service life of the compressor.
Description
Technical field
The utility model relates to technical field of refrigeration compressors, relates in particular to the off-load cylinder and uses 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.
The model utility content
The utility model be at 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.
The beneficial effects of the utility model are: because the off-load cylinder that the utility model provides 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 the utility model structural representation of air cylinder;
Fig. 3 is the part accessory partial schematic diagram of the utility model rotary compressor housing assembly;
Embodiment
Further specify below in conjunction with 2,3 pairs of the utility model of 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.
Cylinder 1 of the present utility model 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; Rotary compressor of the present utility model is for using the rotary compressor of this cylinder 1, and promptly 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; Fillet position 231 can prevent the concentrated harm that compensating groove 23 sidewalls are caused slight crack even fracture of stress, and fillet position 231 can disperse the stress of compensating groove 23 sidewalls, reduces the harm that stress causes compensating groove 23 sidewalls.
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 utility model 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 utility model, be not to limit the utility model practical range,, all should be included in the utility model patent claim so all equivalences of doing according to the described structure of the utility model 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 |
|---|---|---|---|
| CN2009201503252U CN201486865U (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 |
|---|---|---|---|
| CN2009201503252U CN201486865U (en) | 2009-04-30 | 2009-04-30 | Unloading cylinder and rotary compressor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486865U true CN201486865U (en) | 2010-05-26 |
Family
ID=42425742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201503252U Expired - Lifetime CN201486865U (en) | 2009-04-30 | 2009-04-30 | Unloading cylinder and rotary compressor using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799128A (en) * | 2018-08-28 | 2018-11-13 | 西安庆安制冷设备股份有限公司 | A kind of compresser cylinder and compressor |
-
2009
- 2009-04-30 CN CN2009201503252U patent/CN201486865U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799128A (en) * | 2018-08-28 | 2018-11-13 | 西安庆安制冷设备股份有限公司 | A kind of compresser cylinder and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |