CN103994069B - Scroll compressor - Google Patents
Scroll compressor Download PDFInfo
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- CN103994069B CN103994069B CN201310051758.3A CN201310051758A CN103994069B CN 103994069 B CN103994069 B CN 103994069B CN 201310051758 A CN201310051758 A CN 201310051758A CN 103994069 B CN103994069 B CN 103994069B
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- scroll compressor
- dust
- seal
- elastic component
- proofing
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Abstract
Scroll compressor of the present invention, is characterized in that, it comprises: live axle, and it has capacity eccentric bearing; Fixed scroll, this fixed scroll is formed fixing volume; Rotation vortex, this rotation vortex is rotated by the revolution of the capacity eccentric bearing of described live axle, and has rotation volume; Annular slot, is formed in described fixed scroll or rotation vortex; Dust-proofing seal, this dust-proofing seal sandwiches in described annular slot, and both side ends forms first end and the second end; And fixed dam, this fixed dam is inserted in described annular slot, with first and second end of fixing described dust-proofing seal, described fixed dam by the first supporting member with make it to extend and first and second elastic component relative with first end and the second end form.Thus, absorbed the thermal expansion of dust-proofing seal by fixed dam, improve the serviceability of dust-proofing seal.
Description
Technical field
The present invention relates to scroll compressor (scrollcompressor).More specifically, described scroll compressor can prevent the rising due to temperature from causing damage caused by the expansion of dust-proofing seal (dustseal).
Background technique
Usually, scroll compressor comprises rotation vortex (orbitingscroll) and fixed scroll, described rotation vortex is supported on the capacity eccentric bearing of live axle, and described stationary axle is made up of the fixing end plate (endplate) with fixing volume (stationarywrap).
Be positioned at rotation volume on the rotation end plate of described rotation vortex and fix volume and be meshed, thus formed and describedly rotate volume and fix the closed chamber (sealedchamber) between rolling up.
In addition, scroll compressor comprises rotation preventer (selfrotationpreventingdevice), rotates around the axle of self to prevent rotation vortex.
And, by capacity eccentric bearing and the rotation preventer of live axle, rotation vortex is rolled up rotate to eccentric direction, thus the volume in closed chamber is reduced gradually to central axis direction and compresses, or the volume in closed chamber increased gradually away from central axis direction and reduces pressure, discharging finally by periphery.
On the one hand, form engaging groove (engagementgroove) in the end of rotation volume and fixing volume, wherein can sandwich end part seal bar (tipseal), described end part seal bar and relative end plate close contact are also slidably (slide).
In addition, in the rotation volume of scroll compressor and the periphery of the fixing mesh regional rolled up, dust-proofing seal is sandwiched.
Below document 1(all claims " prior art " below) in disclose the representative embodiment of scroll compressor as above.
But there is following point in dust-proofing seal and the end part seal bar of scroll compressor of the prior art.
A () is circular
The circular dust-proofing seal sandwiched in annular slot requires very accurate size, and processing suitable with it and technology.In addition, due to work time produce heat or side pressure, cause dust-proofing seal to fluff or annular slot distortion, thus cause sandwich improper.Due to departing from (deviation) of dust-proofing seal in annular slot, cause sealing unsuccessfully.
B () end contacts or adjacent, that part is separated circle
For absorbing the thermal expansion of dust-proofing seal, between end, leave gap slightly.But this cannot prevent from entering dust by this gap.For preventing entering of dust, the sloped-end of dust-proofing seal or lamination placed, this is complex operation and can increase expense not only.In annular slot, dust-proofing seal has the tendency of movement towards periphery.
C annular slot will be formed as non-circular by (), this is obviously not easy to operate, and the end of this annular slot contacts with outermost end part seal bar and part is separated.Operationally, owing to forming gap between the end of dust-proofing seal and the outside of end part seal bar, dust will be entered by this gap.
D () end part seal bar weares and teares because of sliding type contact, thus can reduce its gas tightness.
Therefore, need now to develop a kind of scroll compressor, this scroll compressor can improve the problem that dust-proofing seal causes due to thermal expansion, can improve again the sealing of end part seal bar.
Prior art document: patent documentation (document 1) US6695597A(AnestIwataCorporation, on February 24th, 2004).
Summary of the invention
Technical problem
The present invention proposes for solving described problem, the object of the present invention is to provide a kind of scroll compressor, the expansion that described scroll compressor Absorbable rod dust-proofing seal is caused by thermal conductance, thus improves the serviceability of dust-proofing seal.
In addition, another object of the present invention is to provide a kind of scroll compressor, and the pressure of closed chamber acts on end part seal bar by described scroll compressor function, thus improves the gas tightness of closed chamber.
Technological scheme
For achieving the above object, scroll compressor of the present invention, is characterized in that, this scroll compressor comprises: live axle, and it has capacity eccentric bearing; Fixed scroll, this fixed scroll is formed fixing volume; Rotation vortex, this rotation vortex is rotated by the revolution of the capacity eccentric bearing of described live axle, and has rotation volume; Annular slot, described fixed scroll or rotation vortex form described annular slot; Dust-proofing seal, is sandwiched in described annular slot, and both side ends forms first end and the second end; With fixed dam (block), be inserted in described annular slot, with first and second end of fixing described dust-proofing seal, described fixed dam by the first supporting member with make it to extend and first and second elastic component relative with first end and the second end form.
In addition, described scroll compressor, is characterized in that, forms opening between this first and second elastic component.
In addition, described scroll compressor, it is characterized in that, first, second end have can make first end and the second end respectively with first and second relative elastic component close contact, or make first end and the second end respectively and between first and second relative elastic component, leave the length in gap.
In addition, described scroll compressor, is characterized in that, first and second elastic component is extended and forms the second bending supporting member, forming receiving groove, wherein can insert first end and the second end between this first, second supporting member.
In addition, described scroll compressor, is characterized in that, when described dust-proofing seal generation thermal expansion, the length expanded according to dust-proofing seal is exerted pressure to first, second elastic component described by described first end and the second end.
In addition, described scroll compressor, is characterized in that, the position that described fixing volume is relative with rotating volume forming seal groove, can insert end Stamping Steel Ribbon in sealing groove.
In addition, described scroll compressor, is characterized in that, described end part seal bar side is formed and flows into groove, and forms separator on the position that the plate face of the seal groove with described end part seal bar is relative.
In addition, described scroll compressor, is characterized in that, at the length direction along end part seal bar continuously and be formed equidistantly described inflow groove and separator.
In addition, described scroll compressor, is characterized in that, described separator is cut and acutangulates with the plate face of end part seal bar.
In addition, described scroll compressor, is characterized in that, described inflow groove face rolls up to by fixing volume and rotation the closed chamber formed.
Beneficial effect
Because fixed dam can absorb the thermal expansion of dust-proofing seal, scroll compressor of the present invention has the effect of the serviceability improving dust-proofing seal.In other words, can prevent foreign matter from entering from the external world.
In addition, by flowing into groove and separator, the pressure of closed chamber can be acted on end part seal bar, thus improve the gas tightness of closed chamber.
Accompanying drawing explanation
Fig. 1 is the sectional view showing scroll compressor of the present invention.
Fig. 2 will be for showing the front elevation of Fig. 1 along II-II line of fixed dam institute installation position in the present invention the 1st embodiment.
Fig. 3 is by the amplification view of Fig. 2 along III-III line.
Fig. 4 a, 4b are the enlarged view of " a " part of Fig. 2.
Fig. 5 a, 5b are the enlarged view of fixed dam in displaying the 2nd embodiment.
Fig. 6 is the enlarged view of " b " part of Fig. 2.
Fig. 7 is the oblique drawing of exploded view 6 medial end portions Stamping Steel Ribbon.
Description of reference numerals:
1: fixed scroll 2: suction port
3: exhaust port 4: fixing end plate
5: fixing volume 5a: seal groove
6: radiating fin 7: rotation vortex
8: rotate end plate 9: rotate volume
9a: seal groove 10: radiating fin
11: support plate 12: live axle
13: capacity eccentric bearing 14: bearing
15: tubular support (tubularboss) 16: rotation preventer
17: housing 18: cover plate
19,20: screw 21: part
22: bolt 23: nut
30a, 30b: first, second end 31: annular slot
32: dust-proofing seal 33: backup pipe (backuptube)
100: fixed dam 110: the first supporting member
120: the first elastic component 130: the second elastic components
140: opening 150: the second supporting member
160: receiving groove S: end part seal bar
S1: flow into groove.
Embodiment
Below in conjunction with accompanying drawing, explain most preferred embodiment of the present invention.
Fig. 1 is the sectional view showing scroll compressor of the present invention, Fig. 2 will be for showing the front elevation of Fig. 1 along II-II line of fixed dam institute installation position in the present invention the 1st embodiment, Fig. 3 is by the amplification view of Fig. 2 along III-III line, Fig. 4 a, 4b are the enlarged view of " a " part of Fig. 2, Fig. 5 a, 5b are the enlarged view of fixed dam in displaying the 2nd embodiment, Fig. 6 is the enlarged view of " b " part of Fig. 2, and Fig. 7 is the oblique drawing of exploded view 6 medial end portions Stamping Steel Ribbon.
Before explanation fixed dam of the present invention, dust-proofing seal and end part seal bar, for helping understanding of the present invention, first scroll compressor is described.Left and right sides in Fig. 1 refers to front and rear direction.
As shown in Fig. 1 ~ 3, scroll compressor of the present invention has following structure.The fixed scroll (1) in the front in Fig. 1 or left side has fixing end plate (4), and there is suction port (2) periphery of this fixing end plate (4), has exhaust port (3) in center.Fix volume (5) in the helical of installing of described fixing end plate (4) below, several equidistant wave shaped radiator (6) is installed before it.
In addition, the rotation vortex (7) being positioned at the rear side of described fixed scroll (1) has rotation end plate (8), have helical before the described rotation end plate (8) relative with fixed scroll (1) to rotate and roll up (9), mask has several equidistant wave shaped radiator (10) thereafter.
Especially, rotation volume (9) of described rotation vortex (7), by being meshed with fixing volume (5), forming described fixing volume (5) and rotates the closed chamber rolled up between (9).
And, at the rear side of described rotation vortex (7), support plate (11, bearingplate) is installed.
On the one hand, form tubular support (15, tubularboss) at the back center place of described rotation vortex (7), this supporting member (15) can be bearing in the capacity eccentric bearing (13) that the live axle (12) rotated is carried out in inside, center.Bearing (14, bearing) is sandwiched between described supporting member (15) and capacity eccentric bearing (13).
In addition, 3 points of described rotation vortex (7) periphery there is known crank pin-type (crank-pin-type) rotation preventer (16), thus make the relative fixed scroll (1) of described rotation vortex (7) eccentric rotary will be carried out around the surrounding of live axle (12), described fixed scroll (1) be fixed in there are rotation vortex (7) housing (17, housing) on.
And, cover plate (18, coverplate) is set before described fixed scroll (1), and is fixed with screw (19).
On the other hand, described rotation vortex (7) screw (20) is fixed on support plate (11), and the part (21, portion) of described fixed scroll (1) will be positioned at the front of housing (17) and be fixed with bolt (22) and nut (23).
In addition, described fixing volume (5) and rotate volume (9) end on form seal groove (5a, 9a), at sealing groove (5a, end part seal bar (S) is sandwiched 9a), described end part seal bar (S) contacts by carrying out sliding type with the fixing end plate (4) of fixed scroll (1) with the rotation end plate (8) of rotation vortex (7), thus improves the gas tightness of described end part seal bar.
Fig. 2 illustrate viewed from rear to time the part (21) of fixed scroll (1).The periphery of the part (21) of fixed scroll (1) forms annular slot (31), with around fixing volume (5).Most annular slot (31) has identical width.In addition, rotation vortex (7) also can form described annular slot (31).
And, in described annular slot (31), sandwich dust-proofing seal (32), enter fixing volume (5) to prevent dust and describedly to rotate in the closed chamber rolled up and formed between (9).
Especially, as shown in Figure 3, the bottom of annular slot (31) will sandwich spring tube (33) certainly, to improve the elasticity of dust-proofing seal (32).
On the other hand, described dust-proofing seal (32) two ends form first end (30a) and the second end (30b), both length are arranged to, and the two ends of first, second end (30a, 30b) described in making contact with each other or adjacent.
And, comprise fixed dam (100) further, this fixed dam (100) is inserted in described annular slot (31), with first, second end (30a, 30b) of fixing described dust-proofing seal (32).In other words, the shape of the installation position of the fixed dam in described annular slot (31) should be corresponding with fixed dam (100).
Now, described fixed dam (100) by the first supporting member (110) with make it down to extend and first, second elastic component (120,130) relative with the second end (30b) with described first end (30a) form.
And, between first, second elastic component (120,130), form opening (140).
On the other hand, when there is not thermal expansion in dust-proofing seal (32), the first end (30a) of described dust-proofing seal (32) and the length of the second end (30b) are arranged to, make described two ends and first, second elastic component (120,130) close contact, or make to leave gap between described two ends and first, second elastic component (120,130).
Now, as shown in Figure 4, when first end (30a) and the second end (30b) and first, second elastic component (120,130) close contact, and when there is thermal expansion due to the driving of scroll compressor in dust-proofing seal (32), first, second end (30a, 30b) can be out of shape by making first, second elastic component (120,130) thermal expansion absorbing dust-proofing seal (32), thus prevent the distortion of dust-proofing seal (32), and then improve its serviceability.
At this moment, due to described dust-proofing seal (32) and fixed dam (100) close contact mutually, thus prevent dust from entering.
Further, as shown in Figure 4, when the length of first end (30a) and the second end (30b) can make to leave gap between two ends and first, second elastic component (120,130), and when there is thermal expansion due to the driving of scroll compressor in dust-proofing seal (32), first, second end (30a, 30b) can by absorbing the thermal expansion of dust-proofing seal (32) with first, second elastic component (120,130) close contact, thus prevent dust-proofing seal (32) to be out of shape, and then improve its serviceability.
In like manner, due to described dust-proofing seal (32) and fixed dam (100) close contact mutually, thus prevent dust from entering.
In addition, as shown in Fig. 5 a ~ 5b, first, second elastic component described (120,130) is extended respectively and is bent to the second supporting member (150), forms the receiving groove (160) that can insert first end (30a) and the second end (30b) between first, second supporting member described (110,150).
Finally, in described receiving groove (160), insert first end (30a) and the second end (30b) of dust-proofing seal (32), thus can prevent dust from entering.As shown in Figure 5 b, the distortion caused by the thermal expansion of dust-proofing seal (32) is absorbed further.
In other words, when there is thermal expansion in dust-proofing seal (32), the length that described first end (30a) and the second end (30b) can expand according to dust-proofing seal (32) is exerted pressure to first, second elastic component described (120,130), thus prevents dust-proofing seal (32) to be out of shape.
In addition, in described fixing volume (5) and end formation seal groove (5a, 9a) of rotating volume (9), wherein insert described end part seal bar (S), the side of this end part seal bar (S) is formed and flows into groove (S1), and the part relative in the bottom of the seal groove (5a, 9a) with described end part seal bar (S) forms separator (S2).
And, along the length direction of end part seal bar (S), continuously and equidistantly to form described inflow groove (S1) and separator (S2).
On the other hand, described separator (S2) is cut and acutangulates with the plate face of end part seal bar.Described separator (S2) also can be formed by triangular sawtooth shape continuously.
Finally, described inflow groove (S1) will towards the closed chamber formed by fixing volume (5) and rotation volume (9).That is, described inflow groove (S1) is towards the one side be stressed, thus flow of compressed fluid influent stream is entered in groove (S1).
Thus, compressed fluid is flow in described inflow groove (S1), the compressed fluid flow in described inflow groove (S1) will flow between the plate face of end part seal bar (S) and seal groove (5a, 9a) by separator (S2), and make end part seal bar increase, thus improve fixing volume and rotate the gas tightness between rolling up.That is, by improving gas tightness, compression efficiency is increased.
As mentioned above, though describe most preferred embodiment of the present invention in detail, but technical scope of the present invention should not be limited in described embodiment, therefore, and should according to claim interpretation technical scope of the present invention.Within the scope of the invention, those skilled in the art can carry out various modifications and changes.
Claims (10)
1. a scroll compressor, is characterized in that, this scroll compressor comprises: live axle, and it has capacity eccentric bearing; Fixed scroll, this fixed scroll is formed fixing volume; Rotation vortex, this rotation vortex is rotated by the revolution of the capacity eccentric bearing of described live axle, and has rotation volume; Annular slot, is formed in described fixed scroll or rotation vortex; Dust-proofing seal, this dust-proofing seal is clamped in described annular slot, and its both side ends forms first end and the second end; And fixed dam, this fixed dam is inserted in described annular slot, with first and second end of fixing described dust-proofing seal, described fixed dam by the first supporting member with make it to extend and first and second elastic component relative with first end and the second end form.
2. scroll compressor according to claim 1, is characterized in that, between first, second elastic component described, form opening.
3. scroll compressor according to claim 1, it is characterized in that, the length of described first end and the second end can make two end respectively with first, second elastic component close contact, two ends maybe can be made to leave gap respectively and between first, second elastic component.
4. scroll compressor according to claim 1, is characterized in that, is extended by first, second elastic component described and forms the second bending supporting member, forming receiving groove, wherein can insert first end and the second end between this first, second supporting member.
5. scroll compressor according to claim 1, is characterized in that, when described dust-proofing seal generation thermal expansion, the length expanded according to dust-proofing seal is exerted pressure to first, second elastic component described by described first end and the second end.
6. scroll compressor according to claim 1, is characterized in that, at described fixing volume and rotate on volume, position respect to one another is formed with seal groove, can insert end Stamping Steel Ribbon in sealing groove.
7. scroll compressor according to claim 6, is characterized in that, the side of described end part seal bar is formed with inflow groove, and is formed with separator on the position that the bottom of the seal groove with described end part seal bar is relative.
8. scroll compressor according to claim 7, is characterized in that, at the length direction along end part seal bar continuously and equidistantly to form described inflow groove and separator.
9. scroll compressor according to claim 7, is characterized in that, described separator is cut and acutangulates with the plate face of end part seal bar.
10. scroll compressor according to claim 7, is characterized in that, described inflow groove face rolls up to by fixing volume and rotation the closed chamber formed.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310051758.3A CN103994069B (en) | 2013-02-17 | 2013-02-17 | Scroll compressor |
| IN654CH2014 IN2014CH00654A (en) | 2013-02-17 | 2014-02-12 | |
| US14/181,798 US9228587B2 (en) | 2013-02-17 | 2014-02-17 | Scroll compressor for accommodating thermal expansion of dust seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310051758.3A CN103994069B (en) | 2013-02-17 | 2013-02-17 | Scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103994069A CN103994069A (en) | 2014-08-20 |
| CN103994069B true CN103994069B (en) | 2016-04-27 |
Family
ID=51308350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310051758.3A Active CN103994069B (en) | 2013-02-17 | 2013-02-17 | Scroll compressor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103994069B (en) |
| IN (1) | IN2014CH00654A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018008132A1 (en) | 2016-07-07 | 2018-01-11 | 株式会社日立産機システム | Scroll-type fluid machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4969771A (en) * | 1987-07-23 | 1990-11-13 | Bowman Harold M | Manhole cover support having enhanced grip |
| CN1193698A (en) * | 1997-03-04 | 1998-09-23 | 株式会社日立制作所 | Scroll compressor |
| EP1593850A2 (en) * | 2004-05-07 | 2005-11-09 | Anest Iwata Corporation | Seal for a scroll fluid machine |
| CN101042138A (en) * | 2006-03-23 | 2007-09-26 | 阿耐思特岩田株式会社 | Scroll fluid machine |
| CN101126329A (en) * | 2006-08-17 | 2008-02-20 | 通用电气公司 | A variable clearance packing ring |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005307770A (en) * | 2004-04-19 | 2005-11-04 | Anest Iwata Corp | Scroll fluid machine |
-
2013
- 2013-02-17 CN CN201310051758.3A patent/CN103994069B/en active Active
-
2014
- 2014-02-12 IN IN654CH2014 patent/IN2014CH00654A/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4969771A (en) * | 1987-07-23 | 1990-11-13 | Bowman Harold M | Manhole cover support having enhanced grip |
| CN1193698A (en) * | 1997-03-04 | 1998-09-23 | 株式会社日立制作所 | Scroll compressor |
| EP1593850A2 (en) * | 2004-05-07 | 2005-11-09 | Anest Iwata Corporation | Seal for a scroll fluid machine |
| CN101042138A (en) * | 2006-03-23 | 2007-09-26 | 阿耐思特岩田株式会社 | Scroll fluid machine |
| CN101126329A (en) * | 2006-08-17 | 2008-02-20 | 通用电气公司 | A variable clearance packing ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103994069A (en) | 2014-08-20 |
| IN2014CH00654A (en) | 2015-04-10 |
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