CN101881274A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN101881274A CN101881274A CN2009103021653A CN200910302165A CN101881274A CN 101881274 A CN101881274 A CN 101881274A CN 2009103021653 A CN2009103021653 A CN 2009103021653A CN 200910302165 A CN200910302165 A CN 200910302165A CN 101881274 A CN101881274 A CN 101881274A
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- baffle plate
- rotary
- bent axle
- piston
- cylinder
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Abstract
The invention discloses a rotary compressor, which comprises a stator and a rotor, wherein the stator and the rotor are arranged in a machine case, the center of the rotor is pressed in and arranged on a crank shaft, the lower part of the crank shaft is provided with a compression structure part, the compression structure part comprises an air cylinder, an upper bearing, a lower bearing, a rotary piston and a baffle plate, the air cylinder is fixedly arranged on the inner peripheral surface of the machine case, the upper bearing and the lower bearing are tightly pasted on the upper side surface and the lower side surface of the air cylinder, at the same time, the crank shaft passes through the upper bearing and the lower bearing so that the upper bearing and the lower bearing are supported, the rotary piston is arranged on an eccentric part of the crank shaft, and does eccentric rotation in the air cylinder under the effect of the crank shaft, the baffle plate is arranged in a baffle plate groove of the rotary piston, the cross section of the baffle plate is in an arc shape, and the shape of the baffle plate groove is matched with the shape of the baffle plate. Because both the baffle plate and the baffle plate groove are in the arc shapes, when the compressor exhausts the air, the baffle plate and the baffle plate groove at the air suction side are in face contact, and the generation of abrasion and leakage can be reduced, so the reliability of the compressor can be improved.
Description
Technical field
The present invention relates to compressor, particularly relate to a kind of rotary compressor.
Background technique
The rotary compressor that is applicable to air conditioner etc. usually with bent axle that electric structure portion combines on eccentric rotary-piston in conjunction with compression structure part, rotary-piston is rotated motion in the compression volume of circular cylinder, thus suction, compression and discharging refrigerant.
The structure of existing rotary compressor as shown in Figure 1, electric structure portion comprises: stator 2, rotor 3 and bent axle 4.Stator 2 and rotor 3 are arranged on the inside of casing 1, and the center of rotor 3 is pressed into and is installed on the bent axle 4, and the bottom of bent axle 4 is provided with the compression structure part of suction, compression refrigeration gas.Described compression structure part comprises: the circular cylinder 5 that is fixedly installed on casing 1 inner peripheral surface; The upper and lower bi-side while bent axle 4 that is close to cylinder 5 connects wherein and supported upper bearing (metal) 6A and lower bearing 6B; Be arranged on the eccentric part 4a of bent axle 4, at the rotary-piston 7 that off-centre is rotated in cylinder 5 under the effect of bent axle 4; One end is crimped on the outer circumferential face of rotary-piston 7, the other end contacts with baffle plate spring (not shown), and is rotated that motion the time is done straight line motion and cylinder 5 is divided into the baffle plate 15 of breathing space and compression volume and is arranged on a side of casing 1 and is connected gas-liquid separator 10 on the suction port 5a of cylinder 5 at rotary-piston 7.Gas-liquid separator 10 possesses certain inside space, and its upper end connects the guard shield 11 of refrigerant pipe; Connect the Lower Half of above-mentioned guard shield 11, profound the insertion is fixed with air pipe 13.
Referring to Fig. 2, above-mentioned baffle plate 15 is arranged in the baffle plate groove of cylinder 5, and an end of baffle plate 15 contacts (not shown) with the baffle plate spring, and the other end contacts with rotary-piston 7, and baffle plate 15 can slide in baffle plate groove under the effect of spring swimmingly.Baffle plate 15 is the separated by spaces of being made up of cylinder 5 and rotary-piston 7 breathing space and compression volume two-part.Outside refrigeration agent enters breathing space by the gap between baffle plate 15 and the baffle plate groove, is compressed in compression volume then, and the higher pressure refrigerant gas after the compression is discharged from compression volume by the relief opening (not shown).Baffle plate 15 is realized sealing (because of lubricant oil is arranged in the gap) with baffle plate groove with certain clearance.
The working procedure of above-mentioned rotary compressor is as follows:
Give stator 2 power supplies, make the inner rotation of rotor 3 at stator 2, meanwhile bent axle 4 rotates and rotary-piston 7 off-centre in cylinder 5 is rotated, off-centre rotation along with rotary-piston 7, refrigeration agent is inhaled into the breathing space of cylinder 5, and continue to be compressed to certain pressure, when the pressure in the compression volume of cylinder 5 surpasses critical pressure, the drain tap 8 that is installed on the relief opening 6a of upper bearing (metal) 6A is opened, pressurized gas drains in the casing 1 from compression volume, the gas of discharging enters into the top of rotary compressor by the slit between the slit between casing 1 and the stator 2 or stator 2 and the rotor 3, passes through gas outlet pipe DP then and is discharged to the circulating frozen system.
But existing rotary compressor has following shortcoming:
The baffle plate of rotary compressor is a plane structure, when compression exhaust, because the pressure difference of suction and discharge both sides makes the baffle plate suction side be close to baffle plate groove, forms linear contact.Because baffle plate moves reciprocatingly simultaneously, thereby causes the heavy wear of baffle plate groove suction side, has reduced the reliability of compressor.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of rotary compressor that improves structure that has, the baffle plate of described compressor and the wearing and tearing between the baffle plate groove seldom, thereby can improve the reliability of compressor.
The objective of the invention is to be achieved through the following technical solutions:
A kind of rotary compressor, comprise: be arranged on the stator in the casing, rotor, centre of rotor is pressed into and is installed on the bent axle, the bottom of bent axle is provided with compression structure part, described compression structure part comprises: the circular cylinder that is fixedly installed on the casing inner peripheral surface, be close to cylinder on, following bi-side bent axle simultaneously connect wherein and supported upper bearing (metal) and lower bearing, be arranged on the eccentric part of bent axle, under the effect of bent axle in cylinder the rotary-piston of eccentric rotation and being arranged in the baffle plate groove of rotary-piston, one end is crimped on the outer circumferential face of rotary-piston, the other end contacts with the baffle plate spring, cylinder is divided into the baffle plate of breathing space and compression volume, the cross section of described baffle plate is an arc, and the shape of described baffle plate groove and the shape of baffle plate adapt.In more detail, described baffle plate is a convex surface in face of a side of rotary-piston sense of rotation.
Rotary compressor of the present invention, baffle plate and baffle plate groove all are arcs, and when compressor air-discharging, baffle plate is that face contacts with the suction side baffle plate groove, the generation that can reduce wear and leak, thus improved the reliability of compressor.
Description of drawings
Fig. 1 is the longitudinal profile structural drawing of existing rotary compressor;
Fig. 2 is the structural representation of cylinder and baffle plate in the rotary compressor of Fig. 1;
Fig. 3, Fig. 4 are the structural representations of cylinder and baffle plate in the rotary compressor of the present invention.
Embodiment
Describe below in conjunction with the structure of accompanying drawing rotary compressor of the present invention.
Referring to Fig. 1, the structure of rotary compressor of the present invention is basic identical, and its electric structure portion comprises: stator 2, rotor 3 and bent axle 4.Stator 2 and rotor 3 are arranged on the inside of casing 1, and the center of rotor 3 is pressed into and is installed on the bent axle 4, and the bottom of bent axle 4 is provided with the compression structure part of suction, compression refrigeration gas.Compression structure part comprises: the circular cylinder 5 that is fixedly installed on casing 1 inner peripheral surface; The upper and lower bi-side while bent axle 4 that is close to cylinder 5 connects wherein and supported upper bearing (metal) 6A and lower bearing 6B; Be arranged on the eccentric part 4a of bent axle 4, at the rotary-piston 7 that off-centre is rotated in cylinder 5 under the effect of bent axle 4; One end is crimped on the outer circumferential face of rotary-piston 7, the other end contacts with baffle plate spring (not shown), and is rotated that motion the time is done straight line motion and cylinder 5 is divided into the baffle plate 15 of breathing space and compression volume and is arranged on a side of casing 1 and is connected gas-liquid separator 10 on the suction port 5a of cylinder 5 at rotary-piston 7.Gas-liquid separator 10 possesses certain inside space, and its upper end connects the guard shield 11 of refrigerant pipe; Connect the Lower Half of above-mentioned guard shield 11, profound the insertion is fixed with air pipe 13.
Referring to Fig. 3 and Fig. 4, the cross section of the baffle plate 25 of rotary compressor of the present invention is an arc, and the shape of the shape of baffle plate groove 26 and baffle plate 25 adapts, and its cross section also is an arc, and baffle plate 25 is a convex surface in face of a side of rotary-piston 7 sense of rotation.
The working procedure of rotary compressor of the present invention is as follows:
Give stator 2 power supplies, make the inner rotation of rotor 3 at stator 2, meanwhile bent axle 4 rotates and rotary-piston 7 off-centre in cylinder 5 is rotated, off-centre rotation along with rotary-piston 7, refrigeration agent is inhaled into the breathing space of cylinder 5, and continue to be compressed to certain pressure, when the pressure in the compression volume of cylinder 5 surpasses critical pressure, the drain tap 8 that is installed on the relief opening 6a of upper bearing (metal) 6A is opened, pressurized gas drains in the casing 1 from compression volume, the gas of discharging enters into the top of rotary compressor by the slit between the slit between casing 1 and the stator 2 or stator 2 and the rotor 3, passes through gas outlet pipe DP then and is discharged to the circulating frozen system.Because baffle plate 25 has the cross section of arc, so, when rotary-piston 7 is done eccentric rotation, baffle plate 26 contacts with suction side baffle plate groove formation face, can reduce the wearing and tearing between baffle plate 25 and the baffle plate groove 26, prevent the generation of leaking, thereby improve the reliability of compressor.
Claims (2)
1. rotary compressor, comprise: be arranged on the stator in the casing, rotor, centre of rotor is pressed into and is installed on the bent axle, the bottom of bent axle is provided with compression structure part, described compression structure part comprises: the circular cylinder that is fixedly installed on the casing inner peripheral surface, be close to cylinder on, following bi-side bent axle simultaneously connect wherein and supported upper bearing (metal) and lower bearing, be arranged on the eccentric part of bent axle, under the effect of bent axle in cylinder the rotary-piston of eccentric rotation and being arranged in the baffle plate groove of rotary-piston, one end is crimped on the outer circumferential face of rotary-piston, the other end contacts with the baffle plate spring, cylinder is divided into the baffle plate of breathing space and compression volume, it is characterized in that: the cross section of described baffle plate is an arc, and the shape of described baffle plate groove and the shape of baffle plate adapt.
2. rotary compressor according to claim 1 is characterized in that: described baffle plate is a convex surface in face of a side of rotary-piston sense of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103021653A CN101881274A (en) | 2009-05-08 | 2009-05-08 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103021653A CN101881274A (en) | 2009-05-08 | 2009-05-08 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101881274A true CN101881274A (en) | 2010-11-10 |
Family
ID=43053370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103021653A Pending CN101881274A (en) | 2009-05-08 | 2009-05-08 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101881274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678555A (en) * | 2011-03-18 | 2012-09-19 | 乐金电子(天津)电器有限公司 | Rotary compressor |
-
2009
- 2009-05-08 CN CN2009103021653A patent/CN101881274A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678555A (en) * | 2011-03-18 | 2012-09-19 | 乐金电子(天津)电器有限公司 | Rotary 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 |
Application publication date: 20101110 |