CN101372966A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN101372966A CN101372966A CNA2007101876130A CN200710187613A CN101372966A CN 101372966 A CN101372966 A CN 101372966A CN A2007101876130 A CNA2007101876130 A CN A2007101876130A CN 200710187613 A CN200710187613 A CN 200710187613A CN 101372966 A CN101372966 A CN 101372966A
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- China
- Prior art keywords
- rolling piston
- blade
- cylinder
- center line
- rotary compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005096 rolling process Methods 0.000 claims abstract description 61
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 239000003507 refrigerant Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a rotary compressor, which comprises a cylinder, a rolling piston and vanes, wherein the cylinder is provided with a compression space; the rolling piston makes eccentric and rotary movement in the compression space of the cylinder and enables a refrigerant to move; one or more vanes are compressed on the outer periphery of the rolling piston, tangential to each other in the direction of a rotary moment of the rolling piston, and exerts rotary torsion in the rotation direction of the rolling piston; and the compression space of the cylinder is divided into a suction chamber and a compression chamber. The rotary compressor has the beneficial effects that the vanes in the rotary compressor are arranged in the direction of the rotary torsion of the rolling piston, so that the moment is generated in the rotation direction of the rolling piston, so as to enable the rotary movement of the rolling piston to be smoother, thereby reducing the input power of a drive motor for rotating the rolling piston, and improving the efficiency of the whole compressor.
Description
Technical field
The present invention relates to a kind of rotary compressor, particularly relate to a kind of blade of rotary compressor.
Background technique
Usually, when rotary compressor passes to compressor at the rotating force with drive motor, its running shaft is provided with more than one eccentric part, and the compression volume that described eccentric part is provided with at cylinder carries out the rolling piston that off-centre rotatablely moves and refrigerant is moved, but described cylinder is provided with the blade that the outer circumferential face that is crimped on described rolling piston moves with described rolling piston compression refrigerant and straight line.
The outer circumferential face of described rolling piston is a round structure, the described blade-shaped hexahedron structure that meets at right angles, and its rear side is by the pressure elastic support of leaf spring and casing, and the head end upper thread is contacted with the outer circumferential face of described rolling piston.
After the drive motor of aforesaid rotary compressor is connected power supply, described running shaft begins rotation, do eccentric motion by the described rolling piston that is assemblied in described rotating shaft eccentric portion with respect to the center of described cylinder and suck refrigerant, and the refrigerant that is inhaled into is compressed owing to the smaller volume that described rolling piston is rotated when motion pressing chamber continuously, then by being arranged on the inner space that near the described blade delivery outlet outputs to casing.
But, there is following shortcoming in the existing rotary compressor, described blade has hindered rotatablely moving of described rolling piston thus at the pressuring direction perpendicular to the rolling piston outer circumferential face, has increased power input to a machine, causes the efficient of whole compressor to reduce.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of prior art, and the rolling piston that a kind of compressor is provided prevents to increase power input to a machine in the interference that the Shi Buhui that rotatablely moves is subjected to blade.
The technical solution adopted in the present invention is: a kind of rotary compressor comprises: cylinder, rolling piston and blade; Described cylinder has compression volume, described rolling piston is done off-centre at the compression volume of described cylinder and is rotatablely moved, and refrigerant is moved, described blade is one or more, be crimped on the outer circumferential face of described rolling piston, blade is tangent in the direction of the running torque of rolling piston, and applies rotary torsion in the sense of rotation of described rolling piston, and the compression volume of described cylinder is divided into suction chamber and pressing chamber.
Described blade is provided with the back when carrying out plane projection, and the center line of its moving direction and the shaft centre line of described rotating shaft are separated with spacing.
Described blade is provided with the back when carrying out plane projection, and the center line of its moving direction does not overlap with the center line of the described cylinder of process.
Described blade is provided with the back when carrying out plane projection, and the center line of its moving direction is separated with spacing with the center line of the described cylinder of process, and is parallel to each other.
Described blade is provided with the back when carrying out plane projection, the center line of its moving direction with through the center line of described cylinder at the axle center of described running shaft with external chiasma.
The terminal end shape of the blade that joins with described rolling piston is that benchmark is symmetrical with the center line.
The terminal end shape of the blade that joins with described rolling piston is that benchmark is asymmetric mutually with the center line.
The invention has the beneficial effects as follows: because the blade in the rotary compressor is arranged on the rotary torsion direction of rolling piston, on the sense of rotation of described rolling piston, produce moment thus, make rotatablely moving of described rolling piston smooth more, thereby reduced the input power of the drive motor that rotates described rolling piston, improved the efficient of whole compressor.
Description of drawings
Fig. 1 is the transverse sectional view of rotary compressor of the present invention;
Fig. 2 is a blade distribution schematic diagram in the compressing mechanism of Fig. 1;
Fig. 3 is " A " portion enlarged diagram among Fig. 2;
Fig. 4 is the enlarged diagram of " A " another embodiment of portion among Fig. 2;
Fig. 5 is another embodiment's that blade distributes in the compressing mechanism among Fig. 1 a schematic representation;
Fig. 6 is a plurality of blade distribution schematic diagrams in the compressing mechanism among Fig. 1.
Among the figure:
20: cylinder 30: rolling piston 40: blade
50: running shaft 51: eccentric part CL1: the center line of rolling piston
CL2: the centre line C L 3 of cylinder: the center line of blade
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
As shown in Figure 1, rotary compressor provided by the invention comprises: cylinder 20, rolling piston 30 and blade 40; Described cylinder 20 is fixedly installed on casing 10 inner spaces of sealing; Described rolling piston 30 off-centre are incorporated on the drive motor running shaft 50, carry out off-centre and rotatablely move in described cylinder 20 compression volumes, and refrigerant is moved; Described blade 40 is crimped on the outer circumferential face of described rolling piston 30, and the compression volume of described cylinder 20 is divided into suction chamber S1 and pressing chamber S2.
Described cylinder 20 is a loop configuration, on the one side, be formed with the suction port 21 that on radial direction, connects, on circumferencial direction one side of described suction port 21, be formed with the vane slit that is used to insert described blade 40, on described vane slit circumferencial direction opposite side, be formed with the output steering channel (not shown) that is communicated with delivery outlet.
Described vane slit when carrying out plane projection, the axle center predetermined distance of being separated by of its length direction center line and described running shaft 50, and with the predetermined distance of being separated by through the center line of described cylinder 20.
As shown in Figure 2, when the centre line C L 1 of described rolling piston reaches centre line C L 2 consistent location with cylinder, the centre line C L 3 that described vane slit makes described blade moves prescribed distance t towards the sense of rotation of described rolling piston 30, makes its centre line C L 2 with described cylinder parallel.
At this moment, the sealing force of described vane slit between blade 40 and rolling piston 30 obviously do not descend, and makes that the centre line C L 3 of described blade is parallel with the centre line C L 2 of cylinder.
As shown in Figure 1, described rolling piston 30 outer circumferential faces are annular, are arranged on rotationally on the eccentric part 51 that is provided with on the drive motor running shaft 50.
Described blade 40 forms hexahedron structure, slides and inserts within the vane slit of described cylinder 20, and can do straight line motion on radial direction.Because described vane slit is parallel with the centre line C L 2 of cylinder, thereby the centre line C L 3 of blade is same parallel with the centre line C L 2 of described cylinder.
And, the rear side end of described blade 40 is supported by the elastic force of leaf spring 60 and the internal pressure or the external pressure of casing 10, front side end is crimped on the outer circumferential face of described rolling piston 30, and the compression volume of described cylinder 20 is divided into suction chamber S1 and pressing chamber S2.
As shown in Figure 3 and Figure 4, the front side end of described blade 40, promptly with the contacted part of the outer circumferential face of described rolling piston 30, can be to be the symmetrical round structure of benchmark with centre line C L 3, also can be to be the asymmetrical structure in the benchmark left and right sides with centre line C L 3.Thus, when left and right sides structure is asymmetric,, can make the length of sense of rotation of described rolling piston 30 longer in order to make described blade 40 not influence the running torque of rolling piston 30 and in order to improve sealability.
The working procedure of rotary compressor of the present invention is as follows:
Described drive motor running shaft 50 begins rotation after connecting power supplys, the described rolling piston 30 that is assemblied in described running shaft 50 eccentric parts with the compression volume inner peripheral surface state of contact of cylinder 20 under do eccentric motion.Meanwhile, be crimped on blade 40 on described fixed piston 30 outer circumferential faces along with described rolling piston 30 rotatablely moves as off-centre, under the elastic support of the vane slit that is subjected to described cylinder 20, blade 40 is done straight reciprocating motion.
In prior art, described blade 40 is during perpendicular to the Normal direction crimping of described rolling piston 30, to the direction application of force that rotatablely moves that stops described rolling piston 30, thereby rotate described rolling piston 30 and need bigger input power, in the present invention, described blade 40 is arranged on the running torque direction of rolling piston 30, thus to the direction application of force of the running torque that helps described rolling piston 30, thereby reduced the input power of the drive motor that is used to rotate described rolling piston 30, make that the rotation of described rolling piston 30 is smooth more, effectively improved the efficient of compressor.
Another embodiment of the present invention is: described blade is arranged on the direction that the shaft centre line of the center line of cylinder and described rotating shaft intersects.
As shown in Figure 5, the vane slit centre line C L 3 that makes described blade tilts to intersect with the centre line C L 2 of cylinder.Here, the setting of vane slit should make the front side end of described blade be positioned at sense of rotation one side of described rolling piston 30.At this moment, the front side end of described blade 40 can adopt symmetrical structure, also can adopt asymmetrical structure.
It is worthy of note; protection scope of the present invention is not limited to above-mentioned instantiation mode; as shown in Figure 6; with the blade 40 that described cylinder 20 and rolling piston 30 join also can be for a plurality of; according to basic fundamental design of the present invention; as long as those of ordinary skills need not through creative work, the mode of execution that can associate, the protection domain of this patent is as the criterion with the scope of claim.
Claims (7)
1. a rotary compressor comprises: cylinder, rolling piston and blade; It is characterized in that, described cylinder has compression volume, described rolling piston is done off-centre at the compression volume of described cylinder and is rotatablely moved and refrigerant is moved, described blade is one or more, be crimped on the outer circumferential face of described rolling piston, blade is tangent in the direction of rolling piston running torque, and applies rotary torsion in the sense of rotation of described rolling piston, and the compression volume of described cylinder is divided into suction chamber and pressing chamber.
2. rotary compressor according to claim 1 is characterized in that, described blade is provided with the back when carrying out plane projection, and the center line of its moving direction and the shaft centre line of described rotating shaft are separated with spacing.
3. rotary compressor according to claim 1 is characterized in that, described blade is provided with the back when carrying out plane projection, and the center line of its moving direction does not overlap with the center line of the described cylinder of process.
4. rotary compressor according to claim 1 is characterized in that, described blade is provided with the back when carrying out plane projection, and the center line of its moving direction is separated with spacing with the center line of the described cylinder of process, and is parallel to each other.
5. rotary compressor according to claim 1 is characterized in that, described blade is provided with the back when carrying out plane projection, the center line of its moving direction with through the center line of described cylinder at the axle center of described running shaft with external chiasma.
6. according to the described rotary compressor of arbitrary claim in the claim 1 to 5, it is characterized in that the terminal end shape of the blade that joins with described rolling piston is that benchmark is symmetrical with the center line.
7. according to the described rotary compressor of arbitrary claim in the claim 1 to 5, it is characterized in that the terminal end shape of the blade that joins with described rolling piston is that benchmark is asymmetric mutually with the center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101876130A CN101372966A (en) | 2007-08-22 | 2007-11-20 | Rotary compressor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710059196 | 2007-08-22 | ||
| CN200710059196.1 | 2007-08-22 | ||
| CNA2007101876130A CN101372966A (en) | 2007-08-22 | 2007-11-20 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101372966A true CN101372966A (en) | 2009-02-25 |
Family
ID=40447287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101876130A Pending CN101372966A (en) | 2007-08-22 | 2007-11-20 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101372966A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825500A (en) * | 2018-08-06 | 2018-11-16 | 珠海凌达压缩机有限公司 | Compressor pump body and rotary compressor with same |
| CN109026701A (en) * | 2018-08-27 | 2018-12-18 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor |
-
2007
- 2007-11-20 CN CNA2007101876130A patent/CN101372966A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825500A (en) * | 2018-08-06 | 2018-11-16 | 珠海凌达压缩机有限公司 | Compressor pump body and rotary compressor with same |
| CN108825500B (en) * | 2018-08-06 | 2024-03-29 | 珠海凌达压缩机有限公司 | Compressor pump body and rotary compressor with same |
| CN109026701A (en) * | 2018-08-27 | 2018-12-18 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor |
| CN109026701B (en) * | 2018-08-27 | 2024-03-22 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090225 |