CN114278561B - Fixed scroll and scroll compressor - Google Patents
Fixed scroll and scroll compressor Download PDFInfo
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- CN114278561B CN114278561B CN202111602063.0A CN202111602063A CN114278561B CN 114278561 B CN114278561 B CN 114278561B CN 202111602063 A CN202111602063 A CN 202111602063A CN 114278561 B CN114278561 B CN 114278561B
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- 230000003068 static effect Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 40
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- 208000035874 Excoriation Diseases 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 abstract description 10
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 238000010408 sweeping Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The application provides a fixed scroll and a scroll compressor, wherein the fixed scroll comprises a scroll shell and a scroll plate; the vortex disc shell and the vortex disc plate are provided with second vortex teeth; the vortex shell is provided with an air suction through hole; the air suction through hole is positioned at the tail part close to the first vortex tooth and far from the center of the vortex shell; the scroll plate at least partially blocks the suction flow through hole. It can be seen from the above description that the suspended surface area at the air suction port is reduced by adopting the split type static vortex disc, the uneven friction phenomenon of the friction pair between the movable vortex disc substrate and the tooth top of the static vortex disc is eliminated, the potential abrasion risk of the pump body possibly caused by the uneven friction phenomenon is eliminated, and the operation reliability of the compressor is improved.
Description
Technical Field
The application relates to the technical field of scroll compressors, in particular to a fixed scroll and a scroll compressor.
Background
The vortex compressor is a refrigeration compressor which starts to enter into popularization in recent years, has the characteristics of stable operation, high volumetric efficiency, high mechanical efficiency, long service life and low failure rate, and the matched air conditioning system is widely applied to the control of temperature and humidity in the environments of families, offices, vehicles and the like, and particularly in the aspect of vehicle application, the vortex compressor gradually replaces the traditional piston type and rotary vane type compressors.
The conventional mode that the friction surface of the movable and static discs of the existing scroll compressor is mostly used for introducing lubricating oil optimizes the lubrication condition of friction pairs, however, when the contact non-uniformity phenomenon exists between the movable scroll base plate and the fixed scroll tooth tops, if the movable and static scroll base plate runs for a long time, the abrasion risk exists in the compressor pump body, and the operation reliability of the movable and static scroll base plate and the fixed scroll tooth tops can be adversely affected.
Disclosure of Invention
The application provides a fixed scroll and a scroll compressor, which adopt a split fixed scroll to reduce the suspended surface area at an air suction port, eliminate the uneven friction phenomenon of a friction pair between a movable scroll base plate and a fixed scroll tooth crest, eliminate the potential abrasion risk of a pump body possibly caused by the uneven friction phenomenon, and improve the operation reliability of the compressor.
In a first aspect, a fixed scroll comprises a scroll housing and a scroll plate detachably and sealingly connected to the scroll housing;
the scroll casing is provided with a first scroll tooth part; the vortex plate is provided with a second vortex tooth part; the first vortex tooth part corresponds to the second vortex tooth part and forms a second vortex tooth of the fixed vortex disc;
the vortex shell is provided with an air suction through hole; the air suction circulation hole is positioned at a tail part close to the first vortex tooth part and far away from the center of the vortex shell;
the scroll plate at least partially closes the suction flow hole. The above description can show that by adopting the fixed scroll with a split structure, the suspended surface area of the suction circulation hole on the fixed scroll is reduced, the uneven contact phenomenon of the friction pair between the disk body of the movable scroll and the second scroll teeth of the fixed scroll is eliminated, the potential abrasion risk of the pump body possibly brought by the uneven contact phenomenon is eliminated, and the running reliability of the compressor is improved.
In a specific embodiment, the scroll plate is provided with a closed groove correspondingly communicated with the suction air circulation hole; the closed groove is positioned at a tail part close to the second vortex tooth part and far from the center of the vortex plate; and the scroll plate portion blocks the suction flow hole.
In a specific embodiment, the width H0<2r, r of the closed groove is the orbiting scroll radius of gyration. The method for reducing the width of the air suction through hole is adopted to partially seal the air suction through hole and enlarge the end surface area of the vortex plate so as to enlarge the sweeping area, and when the movable vortex plate is overturned, the area which is not swept can interfere with the static vortex plate, so that the operation reliability of the compressor is enhanced.
In a specific embodiment, the scroll plate has a blocking area that blocks all of the suction flow holes in the axial direction. And the air suction flow holes are subjected to sealing treatment, after the sealing treatment, the area which is not swept is not existed any more, and the reliability of the compressor is ensured and improved.
In a specific embodiment, a scroll-fit gasket is provided between the scroll housing and the scroll plate. Sealing between the scroll casing and the scroll plate is realized,
in a specific embodiment, the scroll housing has a receiving groove disposed therein; the sealing gasket is arranged in the accommodating groove; or alternatively, the first and second heat exchangers may be,
the vortex disc shell, the sealing groove and the vortex disc plate are arranged in a laminated sealing mode and are in interference fit or lamination fit.
When the accommodating groove is formed in the scroll housing, the sealing gasket is arranged in the accommodating groove:
the vortex plate is provided with four or n columnar bulges which are uniformly distributed and a local sealing area c; the sealing gasket is arranged between the vortex plate and the vortex plate shell, and is provided with four or n evenly distributed through holes which are provided with circular outer walls; four or n columnar grooves 031 and annular grooves are uniformly distributed on the scroll casing, and the annular grooves are provided with circular inner walls. Meanwhile, the diameter phi 1 of the outer wall of the sealing gasket 14 is correspondingly set with the diameter phi 2 of the circular inner wall of the scroll casing, and phi 2 is more than phi 1;
or four or n screw counter bores which are uniformly distributed, four or n through holes which are uniformly distributed and an air suction through hole c' are formed in the vortex plate, wherein the width of the air suction through hole is smaller than 2R, R, and the radius of the air suction through hole is selected for the movable vortex plate; the sealing gasket is provided with four or n through holes and outer circles which are uniformly distributed, and the outer circle diameter is phi 1'; the vortex disc shell is provided with an annular groove and four or n screw holes which are uniformly distributed, the inner diameter of the annular groove is phi 2', and the diameter of the annular groove is phi 2' > phi 1'.
A second aspect, a scroll compressor, comprising a housing, an orbiting scroll, and a fixed scroll as described above; wherein,
the fixed scroll is fixed in the shell; the movable vortex disc is meshed with the fixed vortex disc; and the movable scroll can eccentrically rotate relative to the shell. The split type static vortex disc is adopted to reduce the suspended area at the air suction port and the mode of arranging the avoidance groove on the movable vortex disc, so that the phenomenon of uneven friction between the movable vortex disc base plate and the friction pair between the static vortex disc tooth tops is eliminated, the potential abrasion risk of the pump body possibly caused by the uneven friction is eliminated, and the operation reliability of the compressor is improved.
Further, the scroll compressor also comprises a motor and an upper bracket, wherein the upper bracket is fixed on the shell in a cold pressing or hot sleeving way, and the upper bracket is connected with the shell in a welding way; the phase angles of the fixed vortex disc and the movable vortex disc are 180 degrees different and are oppositely arranged on the upper bracket.
Drawings
Fig. 1 is a schematic view of an orbiting scroll according to an embodiment of the present application;
FIG. 2 is an exploded view of a first embodiment of a split fixed scroll assembly according to an embodiment of the present application;
FIG. 3 is an exploded view of a second embodiment of a split fixed scroll assembly according to an embodiment of the present application;
fig. 4 is a structural schematic diagram of a first embodiment of a fixed scroll provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a second embodiment of a fixed scroll provided in an embodiment of the present application;
fig. 6 is a schematic diagram of a meshing structure of an orbiting scroll and a fixed scroll provided in an embodiment of the present application;
fig. 7 is a schematic view of a scroll compressor according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings.
In order to facilitate understanding of the fixed scroll and the scroll compressor provided by the embodiment of the application, firstly, an application scene is described, the fixed scroll and the movable scroll are mutually meshed in the radial direction in the running process, the top of the movable scroll also periodically skips the bottom of the fixed scroll in the axial direction, and the tooth top of the fixed scroll also periodically skips the bottom of the movable scroll in the same way. Meanwhile, referring to the common practice, a refrigerant circulation groove is formed at the air suction port of the compressor on the static vortex disk, and gaseous refrigerant is introduced into a crescent closed cavity formed by the dynamic vortex disk and the static vortex disk, so that the compression process is realized. Thus, because the suction groove width of the fixed scroll is larger (h >2R, R is the rotation radius of the movable scroll), a partial area on the tooth bottom end surface of the movable scroll cannot be swept. During long-term operation, when the orbiting scroll is capsizing, the area where the orbiting scroll is not swept may interfere with the fixed scroll. In this way, the abrasion of the pump body can be accelerated, and the operation reliability of the compressor is seriously affected. Therefore, the embodiment of the application adopts a mode that the suspended area at the air suction port of the split type static vortex disk is reduced, and the avoidance groove is formed in the movable vortex disk, so that the phenomenon of uneven friction between the movable vortex disk substrate and the fixed vortex disk tooth crest caused by friction pairs is eliminated, the potential abrasion risk of the pump body possibly caused by the uneven friction is eliminated, and the running reliability of the compressor is improved.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an orbiting scroll according to an embodiment of the present application. The orbiting scroll includes: a disk body and a first scroll wrap disposed on the disk body; the disc body and the first vortex teeth are combined into an integrally structured movable vortex disc.
The disc body is provided with a setting area which is close to the tail end of the first vortex tooth far away from the center of the disc body; and an avoidance groove for avoiding the second vortex teeth of the fixed vortex disc is arranged in the setting area. The avoidance groove is a groove, the avoidance groove is a strip-shaped groove body, and the length direction of the avoidance groove basically extends along the spiral direction of the first vortex tooth. So that the area which is not swept by the fixed vortex plate is eliminated according to the running track of the movable vortex plate.
As shown in fig. 1, a set area on the disc 41 near the trailing end of the first scroll wrap away from the center of the disc; an avoidance groove a1 for avoiding the second vortex teeth of the fixed vortex disc is arranged in the arrangement area. The escape groove a1 is formed in a track shape extending substantially in the spiral direction of the first scroll wrap in the longitudinal direction.
It will of course be appreciated that the shape of the relief groove may be rectangular, elliptical, parallelogram, etc. in addition to racetrack.
As can be seen from the above description, along the running track of the movable scroll, the partial area of the disk body of the movable scroll cannot be swept (as shown in fig. 6), and by providing the avoidance groove with the same shape as the non-swept area on the disk body, the uneven friction phenomenon between the disk body of the movable scroll and the second vortex-tooth friction pair of the fixed scroll is eliminated, so that the non-swept area is not existed, thereby eliminating the potential abrasion risk of the pump body possibly brought by the uneven friction phenomenon, and improving the running reliability of the compressor.
In addition, in the embodiment of the application, the fixed vortex disc is also adopted for split treatment, and the width of the air suction through hole of the fixed vortex disc is partially sealed on the fixed vortex disc, so that in order to eliminate the contact non-uniformity phenomenon of a friction pair between the disc body of the movable vortex disc and the second vortex tooth of the fixed vortex disc, the suspension surface area of the air suction port on the fixed vortex disc needs to be reduced, namely, the width of the air suction groove of the air suction port on the fixed vortex disc needs to be reduced, namely, H0<2R (R is the rotation radius of the vortex compressor, and the current common practice is H0> 2R). Therefore, the width of the air suction through hole is reduced, the air suction through hole is partially sealed, the sweeping area is enlarged, and when the movable vortex disk is overturned, the area which is not swept can interfere with the fixed vortex disk, so that the operation reliability of the compressor is enhanced.
In the specific case of split setting of the fixed scroll, referring to fig. 2, fig. 2 is an exploded view of a first embodiment of split assembly of the fixed scroll assembly according to the embodiment of the present application; the first embodiment is a fixed scroll interference fit in a split arrangement. The fixed scroll comprises a scroll housing and a scroll plate detachably and hermetically connected with the scroll housing.
The scroll housing is provided with a first scroll wrap; the scroll plate is provided with a second scroll tooth part; the first vortex tooth part corresponds to the second vortex tooth part and forms a second vortex tooth of the fixed vortex disc. The specific scroll shell and the sealing gasket matched with the scroll shell are arranged between the specific scroll shell and the scroll shell.
The scroll casing is internally provided with an accommodating groove; the sealing gasket is arranged in the accommodating groove. When the scroll casing, the scroll plate and the sealing gasket are specifically assembled, the scroll plate 13 is provided with four or n columnar bulges 131 which are uniformly distributed and a local sealing area c; the sealing gasket 14 is arranged between the vortex plate 13 and the vortex plate shell 03, and four or n evenly distributed through holes 141 are formed in the sealing gasket 14 and provided with a circular outer wall 142; four or n columnar grooves 031 and annular grooves 032 are uniformly distributed on the scroll housing 03, and the annular grooves 032 have circular inner walls 033. Meanwhile, the outer wall 142 (diameter Φ1) of the gasket 14 is disposed corresponding to the circular inner wall 033 (diameter Φ2) of the scroll housing 03, and Φ2> Φ1. So that the columnar protrusions are in one-to-one interference fit with the columnar grooves after penetrating through the through holes 141, and the sealing gasket is embedded inside the scroll casing. In this way, the fixed scroll is divided into the scroll plate 13 and the scroll housing 03, and the processing thereof is relatively simple and convenient; meanwhile, the sealing gasket 14 is arranged by designing the score body static disc structure, and vibration and noise reduction can be achieved by selecting materials (rubber, silica gel and the like) of the sealing gasket 14.
Referring to fig. 3, fig. 3 is an exploded view of a second embodiment of a split-assembly of a fixed scroll assembly according to an embodiment of the present application; the second embodiment is a fixed scroll screw fit in a split arrangement. The fixed scroll comprises a scroll shell and a scroll plate which is detachably and hermetically connected with the scroll shell; the scroll casing is provided with a first scroll tooth part; the scroll plate is provided with a second scroll tooth part; the first vortex tooth part corresponds to the second vortex tooth part and forms a second vortex tooth of the fixed vortex disc. The specific scroll shell and the sealing gasket matched with the scroll shell are arranged between the specific scroll shell and the scroll shell. The scroll casing is internally provided with an accommodating groove; the sealing gasket is arranged in the accommodating groove.
When the scroll casing, the scroll plate and the sealing gasket are specifically assembled, four or n evenly-distributed screw counter bores 013a, four or n evenly-distributed through holes 013b and an air suction through hole c are formed in the scroll plate 013 (the width of the air suction through hole is properly reduced to a reasonable range, namely, the width of the air suction through hole is smaller than 2R, R, and the radius is selected for the movable scroll); four or n through holes 014a and an outer circle 014b which are uniformly distributed are formed in the sealing gasket 014, and the outer circle diameter is phi 1'; the scroll casing 003 is provided with an annular groove 003a and four or n screw holes 003b which are uniformly distributed, the inner diameter of the annular groove is phi 2', and the sealing gasket 014 can be completely arranged in the annular groove 003a on the scroll casing 003 due to the fact that phi 2' > phi 1', and the split parts are assembled together in this way. Screws 004 pass through 013b, 014a and fixedly connect scroll plate 013, seal 014 and scroll housing 003 together.
In addition, the fixed vortex disk and the movable vortex disk are meshed with each other in the radial direction in the running process, the top of the movable vortex disk also can periodically skip the tooth bottom of the fixed vortex disk in the axial direction, and the tooth top of the fixed vortex disk also can periodically skip the tooth bottom of the movable vortex disk in the same way. Meanwhile, referring to the common practice, a refrigerant circulation groove is formed at the air suction port of the compressor on the static vortex disk, and gaseous refrigerant is introduced into a crescent closed cavity formed by the dynamic vortex disk and the static vortex disk, so that the compression process is realized. Thus, due to the large suction groove width of the fixed scroll (h >2R, R is the rotation radius of the orbiting scroll), a partial area on the tooth bottom end surface of the orbiting scroll cannot be swept (as shown in fig. 6). In the long-term operation process, the area, which is not swept by the disc body of the movable vortex disc, can form a step, when the movable vortex disc is overturned, the area, which is not swept by the disc body, can interfere with the fixed vortex disc, and scrap iron impurities can be generated in the process. Therefore, abrasion of the pump body can be accelerated, and the operation reliability of the compressor is seriously affected.
Referring to fig. 4, fig. 4 is a schematic structural view of a first embodiment of a fixed scroll assembly according to an embodiment of the present application; the vortex plate is adopted to have a blocking area for blocking all the air suction through holes in the axial direction. And the air suction flow holes are subjected to sealing treatment, after the sealing treatment, the area which is not swept is not existed any more, and the reliability of the compressor is ensured and improved. The suction flow hole is subjected to sealing treatment (the dotted line is the shape of the suction flow hole before the sealing treatment is carried out in fig. 7), the area d (shown in fig. 6) which is not swept after the sealing treatment is not existed any more, and the reliability of the compressor is ensured and improved.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a second embodiment of a fixed scroll assembly according to an embodiment of the present application; in the second embodiment, the sweeping area of the disc body is increased, specifically, the contact area is increased at the air suction port of the fixed scroll 3', namely, H >2R is adjusted to H' <2R (as shown in the area c 'in fig. 5), so that the sweeping area of the second scroll teeth of the fixed scroll 3' to the disc body of the movable scroll is increased. Thus, in the long-term operation process, the problem that the non-swept area of the movable scroll 4 interferes with the fixed scroll 3' when the movable scroll 4 is overturned is solved, and the operation reliability of the compressor is enhanced. The method for reducing the width of the air suction through hole is adopted to partially seal the air suction through hole and enlarge the end surface area of the vortex plate so as to enlarge the sweeping area, and when the movable vortex plate is overturned, the area which is not swept can interfere with the static vortex plate, so that the operation reliability of the compressor is enhanced.
The most fundamental difference between the second embodiment and the third embodiment of the fixed scroll is that: the suction flow grooves of the fixed scroll are not subjected to the whole sealing treatment, but are partially sealed by adopting a mode of reducing the width of the suction flow grooves (reducing the groove width H from more than 2R to less than 2R).
Referring to fig. 7, the present application also provides a scroll compressor, including a housing, the above-mentioned orbiting scroll, and the above-mentioned fixed scroll; specifically, the scroll compressor includes: upper cover 1, casing 2, quiet vortex dish 3, move vortex dish 4, upper bracket 5, motor 7, bent axle 8, cross sliding ring 12. The upper cover 1 is detachably and hermetically connected to the housing 2 by bolts, thereby facilitating maintenance. The motor 7 is fixed on the shell 2 by cold pressing or hot sleeving, and the shell is connected with the upper bracket 5 by welding. The inside of the shell is provided with a fixed vortex disc 3 and a movable vortex disc 4, and the phase angles of the fixed vortex disc 3 and the movable vortex disc 4 are opposite to each other by 180 degrees and are arranged on an upper bracket 5; so that the movable vortex disk 4 is meshed with the fixed vortex disk 3 under the driving action of the crankshaft 8 to form a series of crescent sealed cavities which are isolated from each other and gradually change in volume. Meanwhile, the movable scroll 4 has axial flexibility, namely an intermediate pressure back pressure cavity 11 between suction pressure and exhaust pressure is arranged between the movable scroll 4 and the upper bracket 5, and the movable scroll 4 can be axially and floatingly bonded with the upper fixed scroll 3 in the running process of the compressor, so that the axial sealing between the movable scroll and the fixed scroll is ensured. When the compressor runs, the motor 7 drives the crankshaft 8 to rotate, an eccentric crank section is arranged at the contact part of the top end of the crankshaft 8 and the movable vortex disk 4, the eccentric crank section drives the movable vortex disk 4 to perform eccentric running with fixed rotation radius, and the actual running path of the movable vortex disk 4 is rotary translation under the anti-rotation function of the cross slip ring 12. The refrigerant entering from the outside of the compressor is sucked into a crescent suction cavity formed by the fixed scroll 3 and the movable scroll 4, then discharged into a closed cavity formed by the upper cover 1, the shell 2 and the lower cover 10 through the exhaust port of the fixed scroll 3, and then discharged out of the compressor through the exhaust copper pipe on the shell 2.
The scroll compressor adopts the mode that the suspended area at the air suction port is reduced by the split type fixed scroll and the avoidance groove is formed in the movable scroll, so that the phenomenon of uneven friction between the movable scroll base plate and the fixed scroll tooth crest is eliminated, the potential abrasion risk of the pump body possibly caused by the uneven friction is eliminated, and the operation reliability of the compressor is improved.
The foregoing is merely illustrative embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present application, and the application should be covered. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (11)
1. The static vortex disc is characterized by comprising a vortex disc shell and a vortex disc plate which is detachably and hermetically connected with the vortex disc shell;
the scroll casing is provided with a first scroll tooth part; the vortex plate is provided with a second vortex tooth part; the first vortex tooth part corresponds to the second vortex tooth part and forms a second vortex tooth of the fixed vortex disc;
the vortex shell is provided with an air suction through hole; the air suction circulation hole is positioned at a tail part close to the first vortex tooth part and far away from the center of the vortex shell;
the scroll plate at least partially closes the suction flow hole.
2. The fixed scroll of claim 1, wherein the scroll plate is provided with a closed groove in corresponding communication with the suction flow hole; the closed groove is positioned at a tail part close to the second vortex tooth part and far from the center of the vortex plate; and the scroll plate portion blocks the suction flow hole.
3. The fixed scroll of claim 2, wherein the width H0<2r, r of the closed groove is an orbiting scroll radius of gyration.
4. A fixed scroll as claimed in claim 2, wherein the scroll plate has a blocking area blocking all of the suction flow holes in the axial direction, and the width H0>2R, R of the blocking groove is a orbiting scroll radius of gyration.
5. A fixed scroll as claimed in any one of claims 1 to 4, wherein a scroll-fitted gasket is provided between the scroll housing and the scroll plate.
6. The fixed scroll of claim 5, wherein a receiving groove is provided in the scroll housing; the sealing gasket is arranged in the accommodating groove; or alternatively, the first and second heat exchangers may be,
the vortex disc shell, the sealing groove and the vortex disc plate are arranged in a laminated sealing mode.
7. The fixed scroll of claim 6, wherein when a receiving groove is provided in the scroll housing, the gasket is disposed in the receiving groove:
the vortex plate is provided with a local sealing area c and n columnar bulges which are uniformly distributed; the sealing gasket is arranged between the vortex plate and the vortex plate shell, and is provided with n evenly distributed through holes which are provided with circular outer walls; n columnar grooves and annular grooves are uniformly distributed on the vortex disc shell, and the annular grooves are provided with circular inner walls; meanwhile, the diameter phi 1 of the outer wall of the sealing gasket is correspondingly set with the diameter phi 2 of the circular inner wall of the vortex disc shell, and phi 2 is more than phi 1;
or the vortex plate is provided with n screw counter bores which are uniformly distributed, n through holes which are uniformly distributed and an air suction through hole, wherein the width of the air suction through hole is smaller than 2R, and R is the radius of gyration of the movable vortex plate; the sealing gasket is provided with n through holes and excircles which are uniformly distributed, and the diameter of the excircle is phi 1'; the vortex disc shell is provided with an annular groove and n screw holes which are uniformly distributed, the inner diameter of the annular groove is phi 2', and phi 2' > phi 1'.
8. The fixed scroll of claim 7, wherein n = 4.
9. A scroll compressor comprising a housing, an orbiting scroll, and a fixed scroll as claimed in any one of claims 1 to 8; wherein,
the fixed scroll is fixed in the shell; the movable vortex disc is meshed with the fixed vortex disc; and the movable scroll can eccentrically rotate relative to the shell.
10. The scroll compressor of claim 9, further comprising a motor and an upper bracket, the upper bracket being fixed to the housing by cold pressing or shrink fitting or being connected to the housing by welding; the phase angles of the fixed vortex disc and the movable vortex disc are 180 degrees different and are oppositely arranged on the upper bracket.
11. The scroll compressor according to claim 10, wherein an intermediate pressure back pressure chamber is provided between the orbiting scroll and the upper frame between suction pressure and discharge pressure, and the orbiting scroll is floatingly engaged with the fixed scroll in an axial direction during operation of the compressor to effect axial sealing between the orbiting and fixed scrolls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111602063.0A CN114278561B (en) | 2021-12-24 | 2021-12-24 | Fixed scroll and scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111602063.0A CN114278561B (en) | 2021-12-24 | 2021-12-24 | Fixed scroll and scroll compressor |
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| Publication Number | Publication Date |
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| CN114278561A CN114278561A (en) | 2022-04-05 |
| CN114278561B true CN114278561B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5859391A (en) * | 1981-10-02 | 1983-04-08 | Hitachi Ltd | Manufacture of scroll used in scroll compressor |
| JPH05256272A (en) * | 1992-03-13 | 1993-10-05 | Toshiba Corp | Scroll type compressor |
| CN103270307A (en) * | 2011-01-11 | 2013-08-28 | Lg电子株式会社 | Scroll compressor with split type fixed scroll |
| CN108150415A (en) * | 2017-12-29 | 2018-06-12 | 合肥通用机械研究院 | A kind of volume variable screw compressor |
| CN209129845U (en) * | 2018-10-31 | 2019-07-19 | 珠海凌达压缩机有限公司 | Static disc and compressor with same |
| CN209354349U (en) * | 2018-11-30 | 2019-09-06 | 珠海凌达压缩机有限公司 | Static disc for scroll compressor and scroll compressor with static disc |
-
2021
- 2021-12-24 CN CN202111602063.0A patent/CN114278561B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5859391A (en) * | 1981-10-02 | 1983-04-08 | Hitachi Ltd | Manufacture of scroll used in scroll compressor |
| JPH05256272A (en) * | 1992-03-13 | 1993-10-05 | Toshiba Corp | Scroll type compressor |
| CN103270307A (en) * | 2011-01-11 | 2013-08-28 | Lg电子株式会社 | Scroll compressor with split type fixed scroll |
| CN108150415A (en) * | 2017-12-29 | 2018-06-12 | 合肥通用机械研究院 | A kind of volume variable screw compressor |
| CN209129845U (en) * | 2018-10-31 | 2019-07-19 | 珠海凌达压缩机有限公司 | Static disc and compressor with same |
| CN209354349U (en) * | 2018-11-30 | 2019-09-06 | 珠海凌达压缩机有限公司 | Static disc for scroll compressor and scroll compressor with static disc |
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|---|---|
| CN114278561A (en) | 2022-04-05 |
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