CN1215803A - Scroll compressor having improved check valve and top plate for releasing compressed gas - Google Patents
Scroll compressor having improved check valve and top plate for releasing compressed gas Download PDFInfo
- Publication number
- CN1215803A CN1215803A CN98123447A CN98123447A CN1215803A CN 1215803 A CN1215803 A CN 1215803A CN 98123447 A CN98123447 A CN 98123447A CN 98123447 A CN98123447 A CN 98123447A CN 1215803 A CN1215803 A CN 1215803A
- Authority
- CN
- China
- Prior art keywords
- check valve
- groove
- exhaust port
- escape orifice
- scroll 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
Abstract
A scroll compressor includes a container, a motor, and a compression unit. The compression unit has a revolving scroll, a stationary scroll to form a compression space together with the revolving scroll, and a top plate to secure the stationary scroll in the container. The stationary scroll has a discharge hole for compressed refrigerant and a groove where a check valve is capable of moving in the vertical direction for opening and closing the discharge hole. The top plate is equiped with a cruciform exhaust hole disposed above the groove. The groove and exhaust hole have radial dimensions larger than the check valve, thus the refrigerant discharged through the discharge hole is exhausted through the groove and the exhaust hole. Because of circular shape of check valve, it is possible to prevent deflection and cracking.
Description
The present invention relates to refrigerator, the scroll compressor that is used for compression refrigerant of air conditioner etc.
Recently, scroll compressor is employed in the cooling unit such as refrigerator and air conditioner one class more and more because the efficient during its compression refrigerant is high.
As shown in Figure 1, such scroll compressor is made up of compression assembly 1, motor 2 and shell 3.Compression assembly 1 comprises quiet whirlpool dish 10 and movable orbiting scroll 20, and motor 2 is used for drive compression assembly 1, and compression assembly 1 and motor 2 all are contained in the shell 3.
The quiet whirlpool dish 10 of compression assembly 1 comprises base plate 11 and spirality roll bending 12, and tap hole 13 is arranged on the base plate 11, and roll bending 12 is to be stretched out downwards by base plate 11 to form.Quiet whirlpool dish 10 is fixed in the shell 3 by top board 40.
Movable orbiting scroll 20 comprises base plate 21 and the spirality roll bending 22 that protrudes upward from base plate 21.This spirality roll bending 22 overlaps mutually with the spirality roll bending 12 of quiet whirlpool dish 10.Movable orbiting scroll 20 is connected with the eccentric shaft 2a of motor 2, thereby its central shaft can be around the central shaft motion of quiet whirlpool dish 10.
In the compression assembly 1 of said structure, when the central shaft of movable orbiting scroll 20 was made circular movement around the central shaft of quiet whirlpool dish 10, gaseous refrigerant was inhaled into the compression chamber that is limited between the spirality roll bending 12 and 22 of quiet whirlpool dish 10 and movable orbiting scroll 20.Shown in Fig. 2 A to 2D, the refrigerant in the suction compression chamber is discharged by the exhaust port of formation on the base plate 11 of quiet whirlpool dish 10 by compression therein then.
In addition, a check valve 30 is set in compression assembly 1, for the usefulness of exhaust port 13 switchings.Check valve 30 can prevent that the compressed refrigerant of having discharged from exhaust port 13 from refluxing.
More particularly, shown in Fig. 3 to 4B, check valve 30 is made plectane 31, along several radial ribs of its circumference layout separated by a distance 32.Check valve 30 is positioned in the receiving groove 14 of valve, and this groove is formed on the upper part of base plate 11.The receiving groove 14 of valve is communicated with exhaust port 13.In addition, on the top board 40 escape orifice 41 is arranged.The diameter of this escape orifice 41 is greater than the diameter of check valve 30 plectane parts 31, but less than the diameter of the check valve that comprises rib 32.
Therefore, when compressed refrigerant in the compression chamber between spirality roll bending 12 and 22 was emitted by exhaust port 13, the check valve 30 that is in closed condition shown in Fig. 4 A just was deflated pressure and upwards shifts position shown in Fig. 4 B onto.Because check valve 30 is opened, compression refrigerant enters exhaust chamber 1a through escape orifice 41.When check valve upwards pushed away, its rib 32 was blocked by top board 40 appropriate sections, so check valve is no longer up pushed away.After compressed refrigerant discharged fully, check valve 30 was closed once more, in case the refrigerant of discharging refluxes.
In Fig. 1, label 4 is suction pipes, and label 5 is outlet pipes, and label 6 is base plates of eccentric shaft 2a one end of supporting motor 2.
But in the scroll compressor of routine, because check valve 30 repeatedly opens and closes, rib 32 may be crooked because of the pressure reduction between compression chamber and the exhaust chamber 1a.In addition, crackle may appear in check valve 30, finally causes cracking.
The object of the invention is to overcome the problems referred to above.Thereby the purpose of this invention is to provide a kind of scroll compressor, the escape orifice of its check valve and top board makes it with breaking high drag be arranged to crooked through improving.
To achieve these goals, scroll compressor of the present invention has disposed shell, motor and compression assembly.Motor has an eccentric shaft.Compression assembly has movable orbiting scroll, quiet whirlpool dish and top board.Movable orbiting scroll is driven by eccentric shaft, and quiet whirlpool dish and movable orbiting scroll have been determined compression chamber jointly, and top board is fixed on quiet whirlpool dish in the shell.Quiet whirlpool dish has exhaust port, can discharge compression refrigerant gas; Also fluted being positioned at above the exhaust port and with exhaust port is communicated with.But check valve is vertical movement in groove, and exhaust port is opened or closed.Escape orifice in the top board is positioned at the groove top.Part top board is positioned at the check valve top, and check valve is stayed in the groove, and check valve is circular.All some is positioned at the outside of check valve along warp direction for groove and escape orifice, and therefore the refrigerant of discharging from exhaust port can be released by this part of groove and escape orifice.
Escape orifice preferably is cross.
A groove preferably cylindrical part adds several from the radially protruding ditch that goes of this part, and they and escape orifice are communicated with.Check valve is arranged in cylindrical segment.
In such scroll compressor, by compression gaseous refrigerant is discharged through exhaust port in compression chamber, simultaneously check valve is up pushed away.So the gaseous refrigerant of discharging through exhaust port discharges by groove and the escape orifice that is not blocked by check valve.
According to the present invention, because check valve is circular, it is firmer than the common check valve with radial rib.
Objects and advantages of the present invention can know from following detailed description and accompanying drawing and see, wherein:
Fig. 1 is the sectional arrangement drawing of common scroll compressor;
Fig. 2 A to 2D cuts the part sectioned view that obtains open along II among Fig. 1-II line, shows the compression of common scroll compressor;
Fig. 3 is presented at the plane view of the applied common check valve of common scroll compressor and exhaust port among Fig. 1;
Fig. 4 A is the sectional view that expression common check valve shown in Figure 3 is in closed condition;
Fig. 4 B is the sectional view that expression common check valve shown in Figure 3 is in opening state;
Fig. 5 is the plane view of described top board according to one preferred embodiment of the present invention;
Fig. 5 A is according to the try to get to the heart of a matter partial plan view of plate of quiet whirlpool of the present invention;
Fig. 6 A is the sectional view when check valve is in closed condition shown in Fig. 5 and the 5A; And
Fig. 6 B is the sectional view when check valve is in opening state shown in Fig. 5 and the 5A.
Except second base plate 111, top board 140 and check valve 130, the same with shown in Fig. 1-2 D on the scroll compressor structure of the present invention.
The specialization of scroll compressor of the present invention at length is illustrated among Fig. 5 and the 6A.Carry in second base plate 111 that coils in quiet whirlpool an exhaust port 113 and a groove part 114 are arranged.Groove 114 comprises a cylindrical center section 114a and several lateral grooves 114b, and the bottom surface 114c of every groove tilts.Compressed gaseous refrigerant in the compression chamber between second roll bending 112 and first roll bending 122 is discharged through exhaust port 113.The check valve 130 that is used to open and close exhaust port 113 is installed in the groove part 114, and can move up and down.Check valve 130 is made circular plate type and is placed the cylindrical section 114a of groove 114.
Be positioned at the top board 140 of groove 114 upper ends, a criss-cross escape orifice 141 is arranged on it, its rib is just in time superimposed on corresponding groove 114b.
Since escape orifice 141 be criss-cross and cross rib length greater than the diameter of check valve 130, so compression refrigerant can be by the discharging of escape orifice 141 part positions, these positions are still ventilation when check valve 130 has moved up.
Though what the shape of escape orifice 141 was described in the drawings is cross, is not limited to this shape and can is other shape, as ellipse, triangle, star or the like, as long as escape orifice 141 has at least a part than the diameter of check valve 130 greatly.
In addition, receiving part 114 is and the corresponding cross of escape orifice 141 shapes substantially.
According to the check valve 130 with scroll compressor of said structure of the present invention, its operation is as follows:
Fig. 6 A represents is the sectional view of check valve when being in closed condition.As shown, exhaust port 113 has been closed in the position of stop bit valve 130.Because the rotation of movable orbiting scroll and after with the gaseous refrigerant compression, by compression refrigerant applies pressure to check valve 130 in the compression chambers of determining in the middle of first roll bending 122 and second roll bending 112.Check valve 130 is subjected to this pressure effect and moves upward, and makes exhaust port 113 open (seeing Fig. 6 B).The 140a of top board partly is positioned at the top of check valve 130, thereby check valve 130 is kept off in groove 114.From the compression refrigerant of the exhaust port opened 113 dischargings by being positioned at the check valve radial outside groove 114b and the part of escape orifice 141.Compressed then refrigerant is discharged to the outside through the exhaust chamber and the outlet pipe (not shown) of shell.In the case, the motion of check valve 130 highly is subjected to the restriction of escape orifice 141 inboards.
After compressed refrigerant discharging finished, check valve 130 moved downward, and exhaust port 113 is closed.
According to above said the present invention, more firm because its check valve is a circular plate type than the check valve of conventional art, therefore relatively can counter-bending, anti-ly destroy according to check valve of the present invention.
Though the present invention specifically illustrates, and be described, be familiar with the one's own profession personage and understand, multiple variation can be arranged in form and details but do not break away from the essence of the present invention and the scope of appended claims book regulation with reference to its preferred embodiment.
Claims (3)
1. a scroll compressor comprises:
Shell has sucking pipe and outlet pipe;
Motor is installed in the above-mentioned shell and has an eccentric shaft; And
Compression assembly, it has a movable orbiting scroll and a quiet whirlpool dish, movable orbiting scroll is driven by above-mentioned eccentric shaft, and quiet whirlpool dish lumps together the formation compression chamber with movable orbiting scroll, there is exhaust port can discharge compressed refrigerant gas on the dish of quiet whirlpool and has a groove to be positioned at the exhaust port top and communicate with it, but thereby exhaust port is opened or is closed in check valve vertical motion in described groove, top board is fixing in the enclosure with above-mentioned quiet whirlpool dish, escape orifice in the top board is positioned at described groove top, the part of top board is just in time on check valve thereby can be with the check valve guard in groove, it is characterized in that: described check valve is circular, the radial dimension of each groove and escape orifice is all big than check valve, thereby can release away through that part of groove and escape orifice through the refrigerant of exhaust port discharging.
2. scroll compressor as claimed in claim 1 is characterized in that: described escape orifice is criss-cross.
3. scroll compressor according to claim 2 is characterized in that: described groove comprises cylindrical segment and several grooves, and groove radially stretches outward and is communicated with escape orifice from cylindrical segment, and check valve then is arranged in cylindrical segment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR55111/97 | 1997-10-25 | ||
| KR1019970055111A KR100223437B1 (en) | 1997-10-25 | 1997-10-25 | Check valve of a scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1215803A true CN1215803A (en) | 1999-05-05 |
Family
ID=19523444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98123447A Pending CN1215803A (en) | 1997-10-25 | 1998-10-23 | Scroll compressor having improved check valve and top plate for releasing compressed gas |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH11166488A (en) |
| KR (1) | KR100223437B1 (en) |
| CN (1) | CN1215803A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302206C (en) * | 1999-06-01 | 2007-02-28 | Lg电子株式会社 | Device for preventing vaccum in vortex compressor |
| CN102116293A (en) * | 2002-10-15 | 2011-07-06 | 比泽尔制冷设备有限公司 | Helical compressor for refrigerating medium |
| CN110185611A (en) * | 2019-07-01 | 2019-08-30 | 南京永升新能源技术有限公司 | A kind of oil-free scroll formula air compressor machine built in check valve |
| CN112081743A (en) * | 2019-06-12 | 2020-12-15 | 艾默生环境优化技术(苏州)有限公司 | Discharge valve assembly and scroll compressor |
| WO2022036882A1 (en) * | 2020-08-17 | 2022-02-24 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030040899A (en) | 2001-11-16 | 2003-05-23 | 주식회사 엘지이아이 | Noise reduction structure forscroll compressor check valve |
| KR101603435B1 (en) | 2014-10-13 | 2016-03-14 | 윤임식 | Kick Board |
| WO2020052390A1 (en) * | 2018-09-14 | 2020-03-19 | 艾默生环境优化技术(苏州)有限公司 | One-way valve and scroll compressor |
-
1997
- 1997-10-25 KR KR1019970055111A patent/KR100223437B1/en not_active IP Right Cessation
-
1998
- 1998-10-02 JP JP10281766A patent/JPH11166488A/en active Pending
- 1998-10-23 CN CN98123447A patent/CN1215803A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302206C (en) * | 1999-06-01 | 2007-02-28 | Lg电子株式会社 | Device for preventing vaccum in vortex compressor |
| CN102116293A (en) * | 2002-10-15 | 2011-07-06 | 比泽尔制冷设备有限公司 | Helical compressor for refrigerating medium |
| CN102116293B (en) * | 2002-10-15 | 2013-05-01 | 比泽尔制冷设备有限公司 | Helical compressor for refrigerating medium |
| CN112081743A (en) * | 2019-06-12 | 2020-12-15 | 艾默生环境优化技术(苏州)有限公司 | Discharge valve assembly and scroll compressor |
| CN110185611A (en) * | 2019-07-01 | 2019-08-30 | 南京永升新能源技术有限公司 | A kind of oil-free scroll formula air compressor machine built in check valve |
| WO2022036882A1 (en) * | 2020-08-17 | 2022-02-24 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11166488A (en) | 1999-06-22 |
| KR100223437B1 (en) | 1999-10-15 |
| KR19990033694A (en) | 1999-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |