CN1548765A - Discharge valve device for rotary compressor - Google Patents
Discharge valve device for rotary compressor Download PDFInfo
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- CN1548765A CN1548765A CNA031298826A CN03129882A CN1548765A CN 1548765 A CN1548765 A CN 1548765A CN A031298826 A CNA031298826 A CN A031298826A CN 03129882 A CN03129882 A CN 03129882A CN 1548765 A CN1548765 A CN 1548765A
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- upper bearing
- rotary compressor
- exhaust port
- valve
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Abstract
The present invention relates to one kind of exhaust valve unit of rotary compressor. The constituting parts include upper bearing in certain shape to cover the compression space of cylinder with rotating shaft inserted into the eccentric part and to support the rotating shaft; exhaust valve connected to the exhaust port in the upper bearing for exhausting compressed refrigerant gas; support part installed on the upper bearing to support the valve. The exhaust valve unit in the said structure has the effects of reducing idle volume to lower compression rate, exhausting refrigerant fluently, raising efficiency and lowering noise.
Description
Technical field
The present invention relates to a kind of rotary compressor discharging valve device (apparatus for dischargevalve of rotary compressor); Particularly, relate to a kind of discharging valve device of rotary compressor, it has following effect: after refrigerant is compressed, when discharging by exhaust port, change the shape that it is installed in the expulsion valve of exhaust port in cylinder, can reduce noise, discharge refrigerant smoothly.
Background technique
Generally, rotary compressor is to rely on the interior rotor of rotary cylinder to come the mechanical device of compression refrigerant gas.Specifically, the roller that is arranged on the off-centre of bent axle bottom is rotated, promptly along cylinder internal surface do revolution, spinning motion, absorb compression refrigerant.The effect that is installed in the liquid container on the above-mentioned hermetic type compressor is: separation such as liquid refrigerant in the refrigerant that is drawn into above-mentioned rotary compressor and impurity thereof are come out.
Rotary compressor with above-mentioned functions as shown in Figure 1, its structure is: rotary compressor is inner to form certain volume space, is formed with the seal container 1 of suction pipe 14 and discharge tube 15; Above-mentioned seal container 1 inside is provided with the motor drive mechanism parts, and above-mentioned motor drive mechanism parts comprise stator 2 and rotor 3; Running shaft 4 is pressed on the above-mentioned rotor, formation eccentric part 4a below it.
Cylinder 8 holds the eccentric part 4a of above-mentioned running shaft 4, and is lived by bolt with upper bearing, lower bearing; Above-mentioned roller piston is inserted on the eccentric part 4a of above-mentioned running shaft 4, and tangent with the internal surface of above-mentioned cylinder 8, does rotation or revolution motion; The outer peripheral surface of above-mentioned blade and above-mentioned roller piston 9 is tangent, and above-mentioned cylinder 8 inside are separated into high-pressure section and low-pressure section.Above-mentioned blade (not shown) is done flexible straight line motion.Said structure is formed compression mechanism part.
The low-pressure section of above-mentioned cylinder 8 forms the suction port 8b that cold media air is imported above-mentioned cylinder 8 inside, and above-mentioned suction port 8b is connected by suction pipe 14 with the liquid container 13 of the side that is arranged on above-mentioned seal container 1.
One side of the high-pressure section that is separated to form by above-mentioned blade in the cylinder 8 forms the exhaust port 8a that discharges compressed cold media air, and a side of above-mentioned upper bearing 5 forms the exhaust passage 5a that is connected with above-mentioned exhaust port.
The top of above-mentioned upper bearing 5 is provided with expulsion valve 20 and stop component 21, and above-mentioned expulsion valve 20 is connected by set screw 23 with stop component 21: upper bearing 5 tops surpass certain pressure, and expulsion valve 20 is just opened exhaust passage 5a; The opening state of the above-mentioned expulsion valve 20 of stop component 21 controls.
In addition, the top of above-mentioned upper bearing 5 combines the baffler (MUFFLER) 12 of reduction by the noise of discharging the gas generation.
Rotary compressor working principle with said structure is as follows: above-mentioned rotor 3 is along with the supply of power supply, rotate above-mentioned running shaft 4, rotation along with above-mentioned running shaft 4, the above-mentioned roller piston 9 that is installed in above-mentioned eccentric part 4a with above-mentioned blade state of contact under rotate, the rotation of above-mentioned running shaft 4 and roller piston 9 makes and is drawn into above-mentioned cylinder 8 inside by above-mentioned suction pipe 14 with suction port 8b from the refrigerant of the low-temp low-pressure of liquid container 13 suctions, and is compressed into the refrigerant of High Temperature High Pressure.
In above-mentioned cylinder 8, refrigerant compression back pressure surpasses the words of certain pressure, the above-mentioned expulsion valve 20 that is in closed condition by above-mentioned stop component 21 supports will be opened, the refrigerant of compressed High Temperature High Pressure is by above-mentioned exhaust port 8a and discharge through hole 5a, be discharged to the inside of above-mentioned seal container 1 through baffler 12, the discharge tube 15 on the top of the refrigerant of discharge by being formed on above-mentioned seal container 1 is discharged to outside the container.
But above-mentioned existing rotary compressor has following shortcoming.
As shown in Figure 2, be installed in the above-mentioned valve 20 of above-mentioned upper bearing 5 and the mounting portion processing of stop component 21 and be connected with on above-mentioned valve 20 and the stop component 21 above-mentioned upper bearings, and then cause the intensity of upper bearing to reduce, and then may bring out its distortion.When above-mentioned valve 20 and upper bearing 5 rotate at above-mentioned rotor 4 at every turn, owing to collide the generation noise; The above-mentioned exhaust port 5a that forms between the compression volume of above-mentioned valve 20 and cylinder 8 forms the dead volume that hinders the refrigerant compressibility, reduces compression performance.
In addition, when being supported by stop component 21 in the prior art, support force concentrates on a fixing position of above-mentioned stop component 21, makes a side of above-mentioned valve 20 open earlier, and then hinders the discharge smoothly of refrigerant.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of discharging valve device of rotary compressor, it has following effect: change forms the shape of the upper bearing of exhaust port apart from control valve unit, obtains the discharging valve device of the rotary compressor of high efficiency, low noise.
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of discharging valve device of rotary compressor, it is characterized in that: according to the upper bearing of definite shape moulding, above-mentioned upper bearing covers the compression volume of the cylinder of the eccentric part that is inserted with running shaft, and supports above-mentioned running shaft.One side of above-mentioned upper bearing is equipped with the compressed cold media air that discharge is discharged from above-mentioned compression volume; With the contacted valve of the exhaust port of above-mentioned upper bearing, open and close exhaust port; After above-mentioned valve reaches certain pressure, it has been opened the supporting part of elastic support effect, above-mentioned supporting part is installed on the above-mentioned upper bearing.
In addition, above-mentioned supporting part has following structure: the support of rectilinear form; At the terminal fixed component that forms of a side of above-mentioned support; Terminal vertical protrusion of an other side of above-mentioned support forms back shaft, and above-mentioned back shaft guides above-mentioned valve; Be installed in the elastomeric spring on the above-mentioned valve, elastic restoring force be provided for above-mentioned valve; The break that moves of the above-mentioned valve of restriction that forms at the end of the protrusion of above-mentioned back shaft.
The discharging valve device of rotary compressor of the present invention reduces and hinders the idle space that reduces the refrigerant compressibility in structure, reduces the noise between valve and the upper bearing, realizes the rotary compressor of high efficiency, low noise, has also strengthened the intensity of upper bearing.
Description of drawings
Fig. 1 demonstrates the sectional arrangement drawing of the rotary compressor of existing technology;
Fig. 2 demonstrates the exploded perspective view that is installed in the discharging valve device on Fig. 1 prior art rotary compressor;
Fig. 3 demonstrates the sectional arrangement drawing of rotary compressor that one embodiment of the invention is equipped with the discharging valve device of rotary compressor;
Fig. 4 demonstrates the part details drawing of the discharging valve device that is installed in rotary compressor of Fig. 3.
The critical piece description of reference numerals
1: seal container 2: stator
3: rotor 4: running shaft
6: lower bearing 7: bolt
8: cylinder (CYLINDER) 8a: exhaust port
8b: suction port 9: roller piston (ROLLING PISTON)
12: baffler (MUFFLE) 13: liquid container (ACCUMULATOR)
14: suction pipe 15: discharge tube
105: upper bearing 105a: drain tank
120: valve 121: supporting part
122: support 123: fixed component
124: back shaft 125: elastomeric spring
126: break (STOPPER)
Embodiment
Accompanying drawing below with reference to the discharging valve device of one embodiment of the invention rotary compressor is described in detail as follows.Use identical reference character with parts identical in the prior art.
Fig. 3 demonstrates the sectional arrangement drawing of rotary compressor that one embodiment of the invention is equipped with the discharging valve device of rotary compressor, as shown in the figure, rotary compressor has following structure: rotary compressor inside forms certain volume space, is formed with the seal container 1 of suction pipe 14 and discharge tube 15; Above-mentioned seal container 1 inside is provided with the motor drive mechanism parts, and above-mentioned motor drive mechanism parts comprise stator 2 and rotor 3; Running shaft 4 is pressed on the above-mentioned rotor, formation eccentric part 4a below it.
Cylinder 8 holds the eccentric part 4a of above-mentioned running shaft 4, and is lived by bolt with upper bearing, lower bearing; Above-mentioned roller piston is inserted on the eccentric part 4a of above-mentioned running shaft 4, and tangent with the internal surface of above-mentioned cylinder 8, does rotation or revolution motion; The outer peripheral surface of above-mentioned blade and above-mentioned roller piston 9 is tangent, and above-mentioned cylinder 8 inside are separated into high-pressure section and low-pressure section.Above-mentioned blade (not shown) is done flexible straight line motion.Said structure is formed compression mechanism part.
The low-pressure section of above-mentioned cylinder 8 forms the suction port 8b that cold media air is imported above-mentioned cylinder 8 inside, and above-mentioned suction port 8b is connected by suction pipe 14 with the liquid container 13 of the side that is arranged on above-mentioned seal container 1.
Cylinder 8 in, a side of the high-pressure section that is separated to form by above-mentioned blade forms the exhaust port 8a that discharges compressed cold media air, a side of above-mentioned upper bearing 105 forms the exhaust passage 105a that is connected with above-mentioned exhaust port.
Above-mentioned upper bearing 105 tops are provided with expulsion valve 120 and supporting part 121; Upper bearing 105 tops surpass certain pressure, and expulsion valve 120 is just opened exhaust passage 105a; The opening state of the above-mentioned expulsion valve 10 of supporting part 121 controls.
In addition, the top of above-mentioned upper bearing 5 combines the baffler 12 of reduction by the noise of discharging the gas generation.
As shown in Figure 4, above-mentioned supporting part 121 has following structure: the support 122 of rectilinear form; At the terminal fixed component 123 that forms of a side of above-mentioned support 122; Terminal vertical protrusion of an other side of above-mentioned support 122 forms back shaft 124, the above-mentioned valve 120 of above-mentioned back shaft 124 guiding; Be installed in the elastomeric spring 125 on the above-mentioned valve 120, it provides elastic restoring force for above-mentioned valve; Form the break 126 that moves of the above-mentioned valve 120 of restriction at the end of the protrusion of above-mentioned back shaft 124.
Above-mentioned exhaust port 8a is formed on a side that contacts with above-mentioned cylinder 8, cave in down with the certain radius certain depth, and with a part of contacts side surfaces of above-mentioned valve 120, above-mentioned exhaust port forms a section poor shape in above-mentioned certain depth, from the contact cylinder 8 a side to the another side, face area increases gradually, and its end face is processed into the shape of inclination.
The discharging valve device of aforesaid rotary compressor of the present invention rotates compression refrigerant at the eccentric part 4a of the above-mentioned cylinder 8 inner running shafts 4 that form; In the inside of above-mentioned cylinder 8, above-mentioned refrigerant is compressed to certain pressure, is introduced in the back shaft 124 of above-mentioned supporting part 121; Because the elastic force of above-mentioned elastomeric spring 125 is opened, the above-mentioned valve 120 of the above-mentioned drain tank 105a that was originally closing is opened.
Along with above-mentioned valve 120 is opened, the refrigerant of compressed High Temperature High Pressure through above-mentioned baffler 12, is discharged to above-mentioned seal container 1 inside by above-mentioned exhaust port 8a and drain tank 105a.The discharge tube on the top of the refrigerant of discharging by being formed on above-mentioned seal container 1 is discharged to the outside.
Have said structure rotary compressor of the present invention discharging valve device structurally, above-mentioned valve 120 is inserted into the above-mentioned drain tank 105a that forms between the compression volume of above-mentioned valve 120 and cylinder 8 and goes up formation, hinder the idle space that reduces the refrigerant compressibility thereby reduce, improve compression performance.
In addition, in the prior art, a side of valve is opened earlier, so the discharge of refrigerant is not very smooth and easy, on the contrary at the discharging valve device of rotary compressor of the present invention in structure, above-mentioned valve 120 is subjected to balanced support force, make the unlatching of above-mentioned valve 120 equilibriums, make the discharge of refrigerant smooth and easy, also reduce noise.
Claims (5)
1. the discharging valve device of a rotary compressor is characterized in that, comprising:
According to the upper bearing of definite shape moulding, above-mentioned upper bearing covers the compression volume of cylinder, is inserted with the eccentric part of running shaft in the above-mentioned compression volume, and above-mentioned upper bearing supports above-mentioned running shaft;
One side of above-mentioned upper bearing is equipped with exhaust port, and the compressed cold media air of above-mentioned compression volume is discharged;
With the contacted valve of the exhaust port of above-mentioned upper bearing, open and close exhaust port;
Supporting part, after above-mentioned valve reached certain pressure, to the elastic support effect of having opened of valve, above-mentioned supporting part was installed on the above-mentioned upper bearing.
2. the discharging valve device of rotary compressor according to claim 1 is characterized in that:
The shape of section broadens to the another side sectional area gradually from a side when above-mentioned exhaust port is processed in front projection, forms tilted shape, and wherein a side and above-mentioned cylinder are tangent.
3. the discharging valve device of rotary compressor according to claim 1 is characterized in that:
Above-mentioned exhaust port is in a side that contacts with above-mentioned cylinder, cave in down with the certain radius certain depth, and with a part of contacts side surfaces of above-mentioned valve, above-mentioned exhaust port forms a section poor shape in above-mentioned certain depth, from the contact cylinder a side to the another side, face area increases gradually, and its end face is processed into the shape of inclination.
4. the discharging valve device of rotary compressor according to claim 1 is characterized in that:
Above-mentioned supporting part has following structure:
The support of rectilinear form;
At the terminal fixed component that forms of a side of above-mentioned support, terminal vertical protrusion of an other side of above-mentioned support forms back shaft;
Be installed on the above-mentioned back shaft, the elastomeric spring of elastic restoring force be provided for above-mentioned valve;
The break that moves of the above-mentioned valve of restriction that forms at the end of the protrusion of above-mentioned back shaft.
5. the discharging valve device of rotary compressor according to claim 4 is characterized in that:
Above-mentioned back shaft is at the opposite side end and the above-mentioned end of above-mentioned support, and the vertical back shaft that constitutes 2 above-mentioned valves of guiding that protrudes is spaced a distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031298826A CN1548765A (en) | 2003-05-22 | 2003-05-22 | Discharge valve device for rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031298826A CN1548765A (en) | 2003-05-22 | 2003-05-22 | Discharge valve device for rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1548765A true CN1548765A (en) | 2004-11-24 |
Family
ID=34322533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031298826A Pending CN1548765A (en) | 2003-05-22 | 2003-05-22 | Discharge valve device for rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1548765A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1782420B (en) * | 2004-11-30 | 2010-05-05 | 乐金电子(天津)电器有限公司 | Check valve device of scroll compressor |
| CN111287962A (en) * | 2018-12-07 | 2020-06-16 | Lg电子株式会社 | Rotary compressor |
-
2003
- 2003-05-22 CN CNA031298826A patent/CN1548765A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1782420B (en) * | 2004-11-30 | 2010-05-05 | 乐金电子(天津)电器有限公司 | Check valve device of scroll compressor |
| CN111287962A (en) * | 2018-12-07 | 2020-06-16 | Lg电子株式会社 | Rotary compressor |
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| WD01 | Invention patent application deemed withdrawn after publication |