CN100532847C - Vortex type compressor - Google Patents
Vortex type compressor Download PDFInfo
- Publication number
- CN100532847C CN100532847C CNB031489656A CN03148965A CN100532847C CN 100532847 C CN100532847 C CN 100532847C CN B031489656 A CNB031489656 A CN B031489656A CN 03148965 A CN03148965 A CN 03148965A CN 100532847 C CN100532847 C CN 100532847C
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- CN
- China
- Prior art keywords
- whirlpool dish
- ring
- belt
- block section
- thrust block
- 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.)
- Expired - Fee Related
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Abstract
The invention relates to a scroll compressor, which comprises: an upper frame, fixed in the casing; a fixed scroll disk, fixed on the frame with involute shaped scroll sheet; a ring scroll disk, mounted between the frame and the fixed scroll disk, with involute shaped scroll sheet; which is made to gear with the fixed scroll disk for forming continuously moving compressing chamber, and a rotation preventing element, mounted between the frame and the ring scroll disk along radial direction, preventing the rotating of the ring scroll disk, having a pushing bearing surface on the upper surface for bearing the axial load of the ring scroll disk.
Description
Technical field
The present invention relates to a kind of scroll compressor, more specifically relate to a kind ofly form a thrust block section, go in ring whirlpool dish smoothness run and prevent the scroll compressor that it is translated into thereby can make by upper surface at the anti-rotation member of the whirlpool disc spins that prevents to go in ring.
Background technique
Usually, compressor is one of chief component in the refrigerating circulatory device, and compression comes low temperature, the low pressure refrigerant gas of from evaporator drier, and under high temperature, high pressure with its discharge.
Types such as that compressor can be divided into is reciprocating type, eddy type, centrifugal and blade type.
The circumduction that scroll compressor coils by the belt whirlpool with involute shape blade sucks, compresses and discharge gas.
Fig. 1 is the longitudinal sectional view according to the scroll compressor of conventional art; Fig. 2 is the perspective exploded view according to the compressing member of the scroll compressor of conventional art.
As shown in the figure, in traditional scroll compressor, upper spider 2 is fixed on the inner upper end of can 1, and lower bearing bracket 3 is fixed on the interior lower end of shell 1.
The stator 4 and the rotor 5 that constitute motor are installed between upper spider 2 and the lower bearing bracket 3.
Be assemblied in the center of rotor 5 in company with the crankshaft 6 of rotor 5 rotations.
Fixed eddy plate 7 with involute shape roll film 7a is installed on the upper spider 2 according to predetermined interval, the belt whirlpool dish 8 with involute shape roll film be installed in fixed eddy plate 7 below.
Keyway 8b is formed at the bottom of coiling 8 both sides in the whirlpool of going in ring, and is used to insert the key 9b of Oldham coupling 9 described hereinafter.
Crankshaft 6 is engaged on the lower end of whirlpool dish 8 of going in ring, thereby makes the whirlpool dish that goes in ring do circumduction.
The Oldham couplings 9 that prevent dish 8 rotations of belt whirlpool movably are assemblied between belt whirlpool dish 8 and the upper spider 2.
Oldham coupling 9 comprises circumferential body 9a, is formed on last key 9b and following key 9c on the main body top and bottom.
Be formed centrally the jack 2a that is used for inserting crankshaft 6 in upper spider 2, forming around the upper surface jack 2a of upper spider 2 highly is the step part 2b of h1.
Upper surface one side of upper spider 2 is formed for inserting the keyway 2c of the key 9c on the Oldham coupling 9, and the opposite side on the upper surface of upper spider 2 is formed for the oil groove 2d to thrust block section B fuel feeding.
As shown in Figure 2, the height h2 of Oldham coupling 9 main body 9a is lower than the height h1 of the step part 2b of the upper surface of upper spider 2.
This shows that the step part 2b that forms thrust block section B can support the whirlpool dish 8 that goes in ring, and the main body 9a of Oldham coupling 9 can not support the whirlpool dish 8 that goes in ring.
In addition, the oil of supplying with sliding parts (contact segment between belt whirlpool dish and the thrust block section) is housed in the bottom of shell 1.Side lower part at shell 1 forms the sucking pipe 10 that sucks refrigerant gas, forms the outlet pipe 11 of discharging refrigerant gas at an upper portion thereof.Unaccounted reference number 7b represents exhaust end.
In the tradition scroll compressor, when rotor 5 rotates by power supply, crankshaft 6 rotations, thus whirlpool dish 8 throw of eccentric with crankshaft 6 of going in ring are that radius carries out circumduction.
At this moment, the Oldham coupling 9 whirlpool dish 8 that prevents to go in ring is translated into, and the whirlpool dish 8 that goes in ring is done circumduction.
When belt whirlpool dish 8 is done circumduction, between fixed eddy plate 7 and belt whirlpool dish 8, form pressing chamber P, pressing chamber reduces gradually, and the refrigerant gas that compression sucks is discharged to outlet pipe 11 by exhaust end 7b.
At belt whirlpool dish 8 by doing circumduction with fixed eddy plate 7 engagements, in the process of suction, compression and discharging refrigerant, the whirlpool dish 8 that goes in ring be subjected to by the pressure of gas compression or belt whirlpool dish static load acted on axially, radially with tangential power.
Herein, axial power has the greatest impact to the circumduction of the whirlpool dish that goes in ring.In view of the above, in order to make the whirlpool dish operation of going in ring level and smooth, must bear axial power fully.
For this reason, in conventional art, form thrust block section B on the upper surface of the step part 2b of upper spider 2, support the lower surface of the whirlpool dish that goes in ring, and give thrust block section B fuel feeding.
For giving thrust block section B fuel feeding, on upper spider 2, form an oil circuit hole 2e, the oil groove 2d that connection forms on the upper surface of the step part 2b of upper spider 2, and oil circuit hole 2e is connected to jack 2a.
In view of the above, when crankshaft 6 rotations, oil pump (not shown) oil pumping that cooperates with the lower end of crankshaft 6, the oil of extraction sucks along the oil circuit 6a of crankshaft 6.The oil that sucks is fed among the oil groove 2d by jack 2a and oil circuit hole 2e, imports thrust block section B then, thereby is lubricated operation.
As previously mentioned, in order to bear the thrust load of the whirlpool dish 8 that goes in ring reposefully, make belt whirlpool dish 8 do level and smooth circumduction, thrust block section B must support the bottom of the whirlpool dish 8 that goes in ring all the time.
Yet, in traditional scroll compressor, because thrust block section B is fixed on the upper surface of step part 2b of upper spider 2, when the pressure of refrigerant gas sharply raise, scope or employing the belt whirlpool with a high roll film of the whirlpool dish that goes in ring by exceeding thrust block section B coiled and made it do circumduction.
When belt whirlpool dish 8 made it do circumduction by the scope that exceeds thrust block section B, thrust block section B can not bear thrust load fully.In view of the above, the whirlpool dish 8 that goes in ring can not carry out level and smooth circumduction, and may translate into.
Summary of the invention
Therefore, an object of the present invention is, provide a kind of and form a thrust block section, go in ring whirlpool dish smoothness run and prevent that its eddy type of translating into from pressing fast machine thereby can make by upper surface at the anti-rotation member of the whirlpool disc spins that prevents to go in ring.
For reaching these and other advantage of the present invention, as embodying at this and generalized description, the invention provides a kind of scroll compressor, comprising: upper spider is fixed in the shell; Fixed eddy plate is fixed on the upper spider, and has involute shape roll film; Belt whirlpool dish is installed between frame and the fixed eddy plate, has involute shape roll film, makes it mesh the pressing chamber that forms continuous motion by the roll film with fixed eddy plate; And, the anti-rotation member, slidably be installed between upper spider and the belt whirlpool dish towards radial direction, prevent the rotation of belt whirlpool dish, its upper surface also has the thrust load that a thrust block section bears the whirlpool dish that goes in ring, and wherein, the anti-rotation member comprises: the circumferential body with thrust block section, be formed on last key and following key on the main body upper and lower, and main body
The power supporting plane supports the lower surface of the whirlpool dish that goes in ring, the height (H of anti-rotation member body
2) greater than the height (H of the step part that forms at the upper spider upper surface
1), thereby make step part and belt whirlpool dish separate predetermined distance.
Preferably, step part is annular.
Preferably, the width of anti-rotation member body is greater than the width of last key.
The aspect ratio of anti-rotation member body wants high at the height of the step part that the frame upper surface forms.
In conjunction with the accompanying drawings, from following detailed description of the present invention, aforementioned and other purpose, feature, All aspects of and the advantage of the present invention will be more apparent.
Description of drawings
Included accompanying drawing constitutes the part of specification, makes more in depth to understand the present invention, and embodiments of the invention are described, explains principle of the present invention simultaneously.
Among the figure:
Fig. 1 is the longitudinal sectional view according to the scroll compressor of conventional art;
Fig. 2 is the perspective exploded view according to the compressing member of the scroll compressor of conventional art;
Fig. 3 is the longitudinal sectional view according to scroll compressor of the present invention;
Fig. 4 is the perspective exploded view according to the compressing member of scroll compressor of the present invention;
Fig. 5 is a perspective exploded view, shows the modified example of Oldham coupling according to scroll compressor of the present invention.
Embodiment
To describe the preferred embodiment of the invention in detail below, the example of explanation is explained in the accompanying drawings.
Fig. 3 is the longitudinal sectional view according to scroll compressor of the present invention; Fig. 4 is the perspective exploded view according to the compressing member of scroll compressor of the present invention.
As shown in the figure, in scroll compressor of the present invention, upper spider 110 is fixed on the upper lateral part of can 100, and lower bearing bracket 120 is fixed on the side lower part of shell 100.
The stator 131 and the rotor 132 that constitute motor are installed between upper spider 110 and the lower bearing bracket 120.
Be assemblied in the center of rotor 132 in company with the crankshaft 133 of rotor 132 rotations.
Fixed eddy plate 140 with involute shape roll film 141 is installed on the upper spider 110 according to predetermined interval, the belt whirlpool dish 150 with involute shape roll film 151 be installed in fixed eddy plate 140 below.
Keyway 152 is formed at the bottom that 150 both sides are coiled in belt whirlpool, is used to insert the key 162 on the Oldham coupling 160 that will illustrate.
The Oldham couplings 160 that prevent dish 150 rotations of belt whirlpool movably are assemblied between belt whirlpool dish 150 and the upper spider 110.
Oldham coupling 160 comprises the circumferential body 161 with thrust block section B, is formed on the last key 162 and the following key 163 of main body 161 upper and lowers, and the thrust block section B of the main body 161 of going in ring supports the lower surface of the whirlpool dish 150 that goes in ring.
Be formed centrally the jack 111 that is used for inserting crankshaft 133 in upper spider 110, forming around the upper surface jack 111 of upper spider 110 highly is the step part 112 of h1.Upper surface one side of upper spider 110 is formed for inserting the keyway 113 of the key 163 on the Oldham coupling 160, and the opposite side on the upper surface of upper spider 110 is formed for the oil groove 114 to thrust block section B fuel feeding.
The height h2 of Oldham coupling 160 main bodys 161 is than the height h1 height of the step part 112 of the upper surface of upper spider 110.
This shows that the main body 161 of the Oldham coupling 160 that forms thrust block section B can upwards support the whirlpool dish 150 that goes in ring, and the step part 112 of upper spider 110 can not upwards support the whirlpool dish 150 that goes in ring.
That is, step part 112 separates predetermined distance with belt whirlpool dish, by and belt whirlpool dish 150 between keep small interval (space) and slide by the lubricated operation of oil, the main body with thrust block section B 161 of Oldham coupling 160 upwards supports the whirlpool dish 150 that goes in ring.
Step part 112 and Oldham coupling 160 be annular preferably, but also can be polygonal or ellipse.
In addition, in the bottom of shell 100 oil that will supply with sliding parts is housed.Form the sucking pipe 101 that sucks refrigerant gas in the top of shell 100 side, form the outlet pipe 102 of discharging refrigerant gas in its underpart.Unaccounted reference number 142 is represented exhaust end.
In scroll compressor of the present invention, when rotor 132 power supply rotations, crankshaft 133 rotations, thus whirlpool dish 150 throw of eccentric with crankshaft 133 of going in ring are that radius carries out circumduction.
At this moment, Oldham coupling 160 prevents translating into of belt whirlpool dish 8 and makes belt whirlpool dish 150 do circumduction.
When belt whirlpool dish 150 is done circumduction, between fixed eddy plate 140 and belt whirlpool dish 150, form pressing chamber P, pressing chamber P reduces gradually, and the refrigerant gas that compression sucks is discharged to outlet pipe 102 by exhaust end 142.
At belt whirlpool dish 150 by doing circumduction with fixed eddy plate 140 engagements, in the process of suction, compression and discharging refrigerant, the whirlpool dish 150 that goes in ring be subjected to by the pressure of gas compression or belt whirlpool dish static load acted on axially, radially with tangential power.
Herein, axial power has the greatest impact to the circumduction of the whirlpool dish that goes in ring.In view of the above, in order to make the whirlpool dish smoothness run that goes in ring, must bear axial power fully and reduce the friction of going in ring between whirlpool dish 150 and the upper spider 110.
For this reason, among the present invention, form thrust block section B on the upper surface of the main body 161 of Oldham coupling 160, and oil is provided for thrust block section B.
For giving thrust block section B fuel feeding, on upper spider 110, form an oil circuit hole 115, oil groove 114 and jack 111 that connection forms on the upper surface of the step part 112 of upper spider 110.
In view of the above, when crankshaft 133 rotations, the oil pump oil pumping that cooperates with the lower end of crankshaft 133, the oil of extraction sucks along the oil circuit 133a of crankshaft 133.The oil that sucks is provided in the oil groove 114 by jack 111 and oil circuit hole 115, imports thrust block section B then, thereby is lubricated operation.
In addition, in scroll compressor of the present invention,, compare, reduced the relative velocity of belt whirlpool dish 150 with traditional scroll compressor because thrust block section B is formed on the upper surface of the Oldham coupling 160 of doing gliding motility.
That is because when belt whirlpool dish 150 was done circumduction, Oldham coupling 160 was also done gliding motility, the whirlpool dish that goes in ring has just reduced moving displacement.
Thrust block section area of the present invention is less than traditional supporting plane area.Yet different with traditional supporting plane is, when scroll compressor moves, can move according to thrust block section of the present invention, thereby can obtain the actual effect that obtains during greater than traditional area when the area of thrust block section.In view of the above, can prevent by exceed the thrust block section scope do circumduction, can be so that the circumduction of the whirlpool dish that goes in ring be level and smooth and the whirlpool dish that prevents to go in ring is translated into.
In addition since according to the motion of thrust block section of the present invention with traditional different, can supply with whole thrust block section B quickly by the oil that oil groove 114 provides.
Fig. 5 is a perspective exploded view, shows the modified example of Oldham coupling according to scroll compressor of the present invention.
As shown in the figure, main body 261 at Oldham coupling 260 forms under the situation of width L1, consider the gas pressure on frictional loss that produces when the whirlpool dish 150 that goes in ring is done circumduction and the roll film 151 that acts on the whirlpool dish 150 that goes in ring, the width L1 of the main body 261 of Oldham coupling 260 is greater than the width L2 of key 262.
As previously mentioned, among the present invention, the thrust block section is formed on the upper surface of Oldham coupling, so its area is greater than the area of the traditional thrust block section that forms on the step part of upper spider, and can give whole thrust block section fuel feeding equably, quickly.
In view of the above, even sharply increase or adopted under the situation of belt whirlpool dish of high roll film at pressure, the circumduction of the whirlpool dish that goes in ring is still finished within the scope of thrust block section, thereby makes the level and smooth and whirlpool dish that prevents to go in ring of the circumduction of whirlpool dish that goes in ring translate into.
Because multiple concrete manifestation form is arranged under the situation that does not deviate from spirit of the present invention or inner characteristic, so except as otherwise noted, be to be understood that the foregoing description is not limited to any details of above stated specification, and broadly explain within the spirit and scope that should stipulate in the claims.Therefore, the institute within the scope of claim changes, revises or replaces, and is all covered by claim.
Claims (3)
1. scroll compressor comprises:
Upper spider is fixed in the shell;
Fixed eddy plate is fixed on the upper spider, has involute shape roll film;
Belt whirlpool dish is installed between upper spider and the fixed eddy plate, has involute shape roll film, makes it mesh the pressing chamber that forms continuous motion by the roll film with fixed eddy plate; And,
The anti-rotation member slidably is installed between upper spider and the belt whirlpool dish towards radial direction, prevents that its upper surface of rotation of belt whirlpool dish also has the thrust load that a thrust block section bears the whirlpool dish that goes in ring,
It is characterized in that, the anti-rotation member comprises: the circumferential body with thrust block section, be formed on last key and following key on the main body upper and lower, and the thrust block section of main body supports the lower surface of the whirlpool dish that goes in ring, the height of anti-rotation member body (H2) separates predetermined distance greater than the height (H1) of the step part that forms at the upper spider upper surface thereby make step part and belt whirlpool coil.
2. the described scroll compressor of claim 1 is characterized in that, step part is annular.
3. the described scroll compressor of claim 1 is characterized in that, the width of anti-rotation member body (L1) is greater than the width (L2) of last key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031489656A CN100532847C (en) | 2003-06-30 | 2003-06-30 | Vortex type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031489656A CN100532847C (en) | 2003-06-30 | 2003-06-30 | Vortex type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1566694A CN1566694A (en) | 2005-01-19 |
| CN100532847C true CN100532847C (en) | 2009-08-26 |
Family
ID=34472437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031489656A Expired - Fee Related CN100532847C (en) | 2003-06-30 | 2003-06-30 | Vortex type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100532847C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588276A (en) * | 2011-01-11 | 2012-07-18 | Lg电子株式会社 | Scroll compressor with split type orbitting scroll |
| US9541083B2 (en) | 2011-11-09 | 2017-01-10 | Lg Electronics Inc. | Scroll compressor including communication hole with improved back pressure chamber and back pressure hole locations |
-
2003
- 2003-06-30 CN CNB031489656A patent/CN100532847C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588276A (en) * | 2011-01-11 | 2012-07-18 | Lg电子株式会社 | Scroll compressor with split type orbitting scroll |
| CN102588276B (en) * | 2011-01-11 | 2015-11-25 | Lg电子株式会社 | There is the scroll compressor of split type orbitting scroll |
| US9523361B2 (en) | 2011-01-11 | 2016-12-20 | Lg Electronics Inc. | Scroll compressor having back pressure chamber that operatively contains a discharge pressure and an intermediate pressure during different periods of time within a single compression cycle |
| US9541083B2 (en) | 2011-11-09 | 2017-01-10 | Lg Electronics Inc. | Scroll compressor including communication hole with improved back pressure chamber and back pressure hole locations |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1566694A (en) | 2005-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20120630 |