CN1510278A - Apparatus for decreasing vortex compressor noise - Google Patents
Apparatus for decreasing vortex compressor noise Download PDFInfo
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- CN1510278A CN1510278A CNA021581444A CN02158144A CN1510278A CN 1510278 A CN1510278 A CN 1510278A CN A021581444 A CNA021581444 A CN A021581444A CN 02158144 A CN02158144 A CN 02158144A CN 1510278 A CN1510278 A CN 1510278A
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- compression
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Abstract
A device for lowering the noise of vortex compressor is disclosed. A check valve assembly installed to top end of exhaust outlet for limiting the exhaust of compressed cold medium, has a spherical limit valve. Said check valve assembly is composed of a valve casing, spherical valve and valve cover. It can lower the noise generated by impact between limit valve and vortex.
Description
Technical field
The present invention relates to scroll compressor, when especially working, reduce the device of the reduction scroll compressor noise of the noise that collides with that produces with fixed scroll for the check valve assembly body of installing in the contrary rotation that prevents scroll compressor.
Background technique
In general, scroll compressor is a kind of of rotary compressor, is two scroll elements that match interlocking compressors with vortex motion compression refrigerant volume.Such compressor and freeze ability is in the 2500-4300kcal scope.In order to improve scroll compressor efficient, scroll element is carried out tolerance add needs precision completely just in man-hour.Along with the develop rapidly of manufacturing technology, the high-precision possibility that is processed into is in mechanically scroll compressor conduct cooling parts uses widely such as air-conditionings.Scroll compressor is little compared with reciprocating motion type or rotary compressor change in torque, does not have inhaling valve or discharge valve, and the Sliding velocity of compression member is also very slow.Advantages such as the leakage with compressor operating refrigerant is little, and components number is few.Have lot of advantages such as high efficiency, low noise, low vibrations.
As depicted in figs. 1 and 2, general scroll compressor is the case 10 that is formed confined space by inside; Be installed on case inside, the press part 20 of compression refrigerant; Provide the motor part 50 of driving force to constitute to press part 20.One side of case 10 is formed with suction pipe 11 that sucks refrigerant from the outside and the discharge tube 12 of discharging the refrigerant of compression.
Above-mentioned press part 20 is by possessing the fixed scroll of staggered shape sheet 22 to be arranged, central part is formed with the exhaust port 23 of the refrigerant that can discharge compression, be fixedly installed in the fixed scroll 21 of case 10 inside, the vortex vortex 25 with the vortex vortex sheet 26 that is both staggered shape that corresponds to fixed scroll sheet 22 and form constitutes.Said fixing vortex sheet 22 and vortex vortex sheet 26 are inlayed mutually with the phase difference of 180 degree, form the space of meniscus shape.Above-mentioned space forms 4 compression volume P2 simultaneously.
In addition, the upside of said fixing vortex 21 is equipped with the high low pressure separating plate 24 that the inner space of case 10 can be divided into high pressure side P3 and low voltage side P1.The upside of exhaust port 23 is equipped with to be breaking at and compresses the check valve assembly body 40 of back adverse current to the refrigerant of compression volume P2 inside among the P3 of high pressure side.
Above-mentioned check valve assembly body 40 is by valve cover 42, and what be provided with in valve cover 42 can be led by valve cover 42, and the columnar inhibition valve 41 that slides within it constitutes.
Above-mentioned motor part 50 is by the stator 51 that is fixed on case 10 inside, electromagnetic force is transformed to the rotor 52 of rotating force in the inside of stator 51, the rotating force of rotor 52 is sent to the running shaft 53 of vortex vortex 25, the rotation motion of running shaft 53 can be changed to 54 formations of O ring between running shaft 53 and the vortex vortex 25 of being installed on of vortex motion.
Working principle by the scroll compressor that above mechanical part constituted is as follows:
In case power supply supplies to motor part 50, rotor 52 will rotate with the interaction that is installed on the rotor 52 of said stator 51 inside owing to the stator 51 of motor part 50.Rotating force will be sent to running shaft 53.The running shaft 53 that rotates will be installed in the O ring 54 on running shaft 53 tops, and the rotation motion that self is original is changed to vortex motion, thus the vortex vortex 25 of drive compression portion 20.
Above-mentioned vortex vortex 25 will be the center with the running shaft, carry out relative vortex motion with fixed scroll 21.In the vortex motion process, the compression volume P2 of meniscus shape can form continuously.The compression volume P2 of meniscus shape its volume more outward is big more, and nearly its volume of decentre is more little more.Therefore, the central part of the past more fixed scroll 21 of refrigerant that sucks via suction pipe 11 moves its volume will be more little, thus the compression of the refrigerant of realizing.There is suction chamber the outside of press part 20, and central part has exhaust port 23, therefore can suck refrigerant and also discharge by exhaust port 23 the compression back.
After compression was carried out, the inhibition valve 41 of check valve assembly body 40 will be owing to the pressure difference side back open row outlet 23 of sliding that makes progress, will be mobile to high pressure side P3 by exhaust port 23 through the refrigerant of overcompression.The refrigerant that compresses among the P3 of high pressure side will separate with low voltage side P1 owing to high low pressure separating plate 24.Compression refrigerant among the P3 of high pressure side is discharged to case 10 outsides by discharge tube 12 again.In addition, in case scroll compressor quits work, above-mentioned inhibition valve 41 slides downward side, blocks exhaust port 23, and then has prevented the adverse current of refrigerant.
But, in the scroll compressor of above-mentioned prior art, press and discharge the ratio increase of pressing if suck, then can make the inhibition valve 41 that prevents the contrary rotating check valve assembly body 40 of scroll compressor firmly clash into exhaust port 23 tops of fixed scroll 21, thereby produce the noise that collides with.In addition, if guiding suppresses the incorrect words of circularity of the valve cover 42 of valve 41, above-mentioned inhibition valve 41 will double swerve when pumping.Thereby, the problem of exhaust port 23 can appear correctly opening and closing.
Summary of the invention
Technical problem to be solved by this invention provides a kind of structure that improves the check valve assembly body of the adverse current of compressing the refrigerant of discharging the back, the noise that collides with when reducing the work of check valve assembly body, the device of the reduction scroll compressor noise of the reliability of raising product.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of device that reduces the scroll compressor noise, described scroll compressor comprise the case that forms airtight inner space; Be fixed in the inboard of case and be formed with the fixed scroll of exhaust port; Do relative vortex motion with fixed scroll, in the middle of relative movement, form continuous compression volume simultaneously, thus the vortex vortex of compression refrigerant; Be installed on the exhaust port upper end of fixed scroll, the check valve assembly body of the refrigerant discharge of compression is finished in restriction; Described check valve assembly body comprises the inhibition valve of the spheroidal of the switching exhaust port upper end that is provided with for the refrigerant of limit compression is discharged.
Described check valve assembly body is the upper end portion by the exhaust port that is installed in fixed scroll, and inside is formed with the valve cover that guiding suppresses the guide channel of valve; What be provided with in the valve cover can be led by the guide channel of valve cover, and the inhibition valve of the spheroidal of the switching exhaust port that slides within it; Be installed in the upside of valve cover, prevent that the valve cover that suppresses the valve ejection from constituting.
Guide channel in the described valve cover approaches the exhaust port direction more, and the internal diameter of guide channel is more little.
The device of reduction scroll compressor noise of the present invention, the inhibition valve that opens and closes the exhaust port of discharging compression refrigerant is the ball shape, by the relative vortex rotation compression refrigerant of fixed scroll and vortex vortex.Simultaneously, when guiding the guide channel front projection of above-mentioned inhibition valve, its shape is that two sidewalls are formed inclinedly.Like this, suppress valve) when guide channel moves up and down, will contact with linear contact of the sidewall of guide channel with putting.Compare with the face contacting structure of having only in the past, can promptly brake, therefore improve compression efficiency.In addition, be linear the contact because suppress the upper end portion of valve and exhaust port, compare with face contacting structure in the past, when colliding, can reduce and collide noise, therefore improve the product reliability.
Description of drawings
Fig. 1 is the part sectional arrangement drawing of general scroll compressor.
Fig. 2 is the part details drawing that the upper end portion of the scroll compressor fixed scroll among Fig. 1 is equipped with check valve assembly body.
Fig. 3 is the in-built sectional arrangement drawing of scroll compressor that embodiments of the invention are equipped with the device that reduces the scroll compressor noise.
Fig. 4 is the part details drawing that the fixed scroll upper end portion of the scroll compressor represented among Fig. 3 is equipped with check valve assembly body.
Among the figure, 140: check valve assembly body; 141: the valve cover; 141a: guide channel; 142: suppress valve; 143: valve cover.
Embodiment
Be described in further detail below in conjunction with the device of the drawings and specific embodiments reduction scroll compressor noise of the present invention:
Shown in Fig. 3,4, in the device of reduction scroll compressor noise in an embodiment of the present invention, the same Fig. 1 of the explanation of these mechanical parts is omitted in the case 10 identical with in the past structure, the explanation of motor part 50.
The device that reduces the scroll compressor noise in the embodiments of the invention is by the case 10 that forms confined space in inside, is installed on the press part 20 of case internal compression refrigerant, provides the motor part 50 of driving force to constitute to press part 20.Be arranged on exhaust port 23 upsides of the fixed scroll 21 of press part 20, the check valve assembly body 140 that flows into compression volume P2 after the refrigerant adverse current that prevents to compress among the P3 of high pressure side is installed.
Above-mentioned check valve assembly body 140 is the upper end portions by the exhaust port 23 that is installed in fixed scroll 21, and inside is formed with the valve cover 141 of guide channel 141a; What be provided with in valve cover 141 can be led by the guide channel 141a of valve cover 141, and the inhibition valve 142 of the spheroidal of the switching exhaust port 23 that slides within it; Be installed in the upside of valve cover 141, the valve cover 143 that prevents to suppress the ejection of valve 142 constitutes.
The working procedure of above-mentioned scroll compressor is as follows:
In case power supply supplies to motor part 50, rotor 52 will rotate with the interaction that is installed on the rotor 52 of said stator 51 inside owing to the stator 51 of motor part 50.Rotating force will be sent to running shaft 53.The running shaft 53 that rotates will be owing to the O ring 54 that is installed in running shaft 53 tops, and the rotation motion that self is original is changed to vortex motion, thus the vortex vortex 25 of drive compression portion 20.
Above-mentioned vortex vortex 25 will be the center with the running shaft, and fixed scroll 21 is carried out relative vortex motion.In such vortex motion process, the compression volume P2 of meniscus shape will form continuously.The compression volume P2 of meniscus shape its volume more outward is big more, and nearly its volume of decentre is more little more.Therefore, the central part of the past more fixed scroll 21 of refrigerant that sucks via suction pipe 11 moves its volume will be more little, thus the compression of the refrigerant of realizing.There is suction chamber the outside of press part 20, and central part has exhaust port 23, therefore can suck refrigerant and also discharge by exhaust port 23 the compression back.
After compression is carried out, the inhibition valve 142 of check valve assembly body 140 will slide along the guide channel 141a of valve cover 141 side that makes progress owing to pressure difference, thus open row outlet 23.The refrigerant of compression will flow to high pressure side P3 by exhaust port 23, and the refrigerant that compresses among the P3 of high pressure side will separate with low voltage side P1 owing to high low pressure separating plate 24.Compression refrigerant is discharged toward case 10 outsides by discharge tube 12 again among the P3 of high pressure side.In addition, in case scroll compressor quits work, above-mentioned inhibition valve 142 will slide along the downward side of the guide channel 141a of above-mentioned valve cover 141 because of deadweight.Thereby blocked exhaust port 23, successfully prevented the adverse current of refrigerant.
In the device of aforesaid reduction scroll compressor noise of the present invention, the inhibition valve 142 of spheroidal shape can slide up and down along the guide channel 141a that forms in valve cover 141.Inhibition valve 142 its structures of spheroidal shape are to help opening and closing the exhaust port 23 that forms on the fixed scroll 21.When scroll compressor was worked, the inhibition valve 142 of blocking exhaust port 23 was because of discharging up side shifting of pressure.At this moment, because valve cover 143 exists, suppress valve 142 and will can not break away from the inside of valve cover 141.Owing to suppress moving up of valve 142, exhaust port 23 will be opened simultaneously.
And when the work of scroll compressor stopped, suppressing valve 142 will can be toward lower slider owing to its deadweight and pressure difference, and then can block exhaust port 23.In a single day exhaust port 23 is plugged, and just can prevent that the refrigerant adverse current of high pressure from making vortex vortex 26 contrary rotating phenomenons.
At this moment, suppressing valve is the ball shape.When guiding suppressed the guide channel 141a front projection of valve 142, its shape was that two sidewalls are formed inclinedly.When inhibition valve 142 moves up and down, will contact with linear contact of the sidewall of guide channel 141a with point.Therefore, compare, can brake rapidly with the face contacting structure of having only in the past.And, are linear contacts because suppress the upper end portion of valve 142 and exhaust port 23.Compare with face contacting structure in the past, when colliding, can reduce and collide noise.
Claims (3)
1, a kind of device that reduces the scroll compressor noise, described scroll compressor comprise the case that forms airtight inner space; Be fixed in the inboard of case and be formed with the fixed scroll of exhaust port; Do relative vortex motion with fixed scroll, in the middle of relative movement, form continuous compression volume simultaneously, thus the vortex vortex of compression refrigerant; Be installed on the exhaust port upper end of fixed scroll, the check valve assembly body of the refrigerant discharge of compression is finished in restriction; It is characterized in that described check valve assembly body (140) comprises the inhibition valve (142) of the spheroidal of switching exhaust port (23) upper end that is provided with for the refrigerant of limit compression is discharged.
2, the device of reduction scroll compressor noise according to claim 1, it is characterized in that described check valve assembly body (140) is the upper end portion by the exhaust port that is installed in fixed scroll (21) (23), inside is formed with the valve cover (141) that guiding suppresses the guide channel (141a) of valve (142); What be provided with in valve cover (141) can be led by the guide channel of valve cover (141) (141a), and the inhibition valve (142) of the spheroidal of the switching exhaust port (23) that slides within it; Be installed in the upside of valve cover (141), prevent that the valve cover (143) that suppresses valve (142) ejection from constituting.
3, the device of reduction scroll compressor noise according to claim 2 is characterized in that the guide channel (141a) in the described valve cover (141) approaches exhaust port (23) direction more, and the internal diameter of guide channel (141a) is more little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021581444A CN100339599C (en) | 2002-12-25 | 2002-12-25 | Apparatus for decreasing vortex compressor noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021581444A CN100339599C (en) | 2002-12-25 | 2002-12-25 | Apparatus for decreasing vortex compressor noise |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1510278A true CN1510278A (en) | 2004-07-07 |
| CN100339599C CN100339599C (en) | 2007-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021581444A Expired - Fee Related CN100339599C (en) | 2002-12-25 | 2002-12-25 | Apparatus for decreasing vortex compressor noise |
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| Country | Link |
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| CN (1) | CN100339599C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609758A (en) * | 2015-10-27 | 2017-05-03 | 丹佛斯（天津）有限公司 | Gas discharge valve and compressor with same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11182480A (en) * | 1997-12-16 | 1999-07-06 | Tokico Ltd | Rotary compressor |
| US6132191A (en) * | 1998-05-15 | 2000-10-17 | Scroll Technologies | Check valve for scroll compressor |
| US6171084B1 (en) * | 1999-01-26 | 2001-01-09 | Copeland Corporation | Discharge valve |
| US6217302B1 (en) * | 2000-02-24 | 2001-04-17 | Scroll Technologies | Floating seal bias for reverse fun protection in scroll compressor |
| US6390792B1 (en) * | 2001-01-23 | 2002-05-21 | Rechi Precision Co., Ltd. | Venting passage for isolation block of scroll compressor and check valve for the same |
-
2002
- 2002-12-25 CN CNB021581444A patent/CN100339599C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609758A (en) * | 2015-10-27 | 2017-05-03 | 丹佛斯（天津）有限公司 | Gas discharge valve and compressor with same |
| CN106609758B (en) * | 2015-10-27 | 2019-06-11 | 丹佛斯（天津）有限公司 | Gas exhaust valve and compressor with gas exhaust valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100339599C (en) | 2007-09-26 |
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