CN112709696A

CN112709696A - Static vortex disc assembly and vortex compressor

Info

Publication number: CN112709696A
Application number: CN202110039049.8A
Authority: CN
Inventors: 符增辉; 徐嘉; 高照源; 李卫来
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-04-27

Abstract

The invention provides a fixed scroll disk assembly and a scroll compressor. The fixed scroll assembly includes: the static vortex disc is provided with an exhaust hole; the exhaust check valve plate is connected with the static scroll disk and is provided with a first plate section which is opposite to the exhaust hole; the first plate section is an arc-shaped plate, and the arc-shaped plate is arranged in a concave manner towards the direction far away from the exhaust hole; or, first plate section is spherical board, and spherical board orientation is kept away from the sunken setting of direction of exhaust hole. The static vortex disk assembly solves the problem that the exhaust valve plate at the exhaust port of the vortex compressor in the prior art is concave.

Description

Static vortex disc assembly and vortex compressor

Technical Field

The invention relates to the field of compressors, in particular to a fixed scroll disk assembly and a scroll compressor.

Background

The air outlet 1 on the static vortex disc of the vortex compressor in the prior art is large, and the problems that the air outlet valve plate 2 is pressed into the air outlet 1 after the compressor is stopped, so that the check is invalid, the compressor is stopped and reversed, and abnormal noise is generated exist, are shown in fig. 1 and 2. At present, it is common practice to increase the thickness of the discharge valve sheet, or to increase the rigidity thereof.

However, since the exhaust check valve is installed at the exhaust port, when the compressor is normally started and operated to exhaust air, the gas force pushes the exhaust check valve open to exhaust air, so that the thickness of the exhaust valve plate cannot be designed to be too thick, otherwise, the valve plate needs to be opened to overcome a large elastic force, and further a large thrust is needed, which causes the exhaust resistance to increase, resulting in an increase in power consumption; in addition, there is a risk of damage to the scroll wraps caused by over-compression.

Disclosure of Invention

The invention mainly aims to provide a fixed scroll disk assembly and a scroll compressor, and aims to solve the problem that an exhaust valve plate at an exhaust port of the scroll compressor in the prior art is concave.

In order to achieve the above object, according to an aspect of the present invention, there is provided a fixed scroll assembly including: the static vortex disc is provided with an exhaust hole; the exhaust check valve plate is connected with the static scroll disk and is provided with a first plate section which is opposite to the exhaust hole; the first plate section is an arc-shaped plate, and the arc-shaped plate is arranged in a concave manner towards the direction far away from the exhaust hole; or, first plate section is spherical board, and spherical board orientation is kept away from the sunken setting of direction of exhaust hole.

Further, the exhaust hole is arranged on the installation end surface of the fixed scroll; the fixed scroll assembly further comprises: the anti-concave structure is inserted into the exhaust hole and protrudes out of the mounting end face to support the first plate section.

Further, the anti-concave structure is a hollow cylinder.

Further, the end that the structure of preventing indent is used for contacting with first plate segment is provided with the contact surface, and the contact surface is the partial surface of first arcwall face, and the contact surface is used for laminating mutually with the surface of arc, and the annular is personally submitted to the contact surface.

Furthermore, one end of the anti-concave structure, which is used for being in contact with the first plate section, is provided with a contact surface, the contact surface is a partial surface of the first spherical surface, the contact surface is used for being attached to the surface of the spherical plate, and the contact surface is annular; or the contact surface is a second arc-shaped surface, the second arc-shaped surface is connected end to form an annular shape, and the contact surface is in line contact with the spherical plate.

Further, the anti-concave structure is in interference fit with the exhaust hole; or the inward concave prevention structure and the static vortex disc are integrally formed.

Further, the fixed scroll assembly further comprises: and the lift limiter is connected with the static vortex disc and arranged on one side of the exhaust check valve plate far away from the static vortex disc so as to stop the exhaust check valve plate.

Furthermore, a through hole is formed in the lift limiter and is opposite to the first plate section.

Furthermore, the through hole comprises a first hole section and a second hole section, and the first hole section is connected with the second hole section and is positioned on one side, close to the exhaust check valve plate, of the second hole section; the hole wall of the first hole section is a part of the surface of the third arc-shaped surface, and the hole wall of the first hole section is used for being attached to the surface of the arc-shaped plate.

Furthermore, the through hole comprises a first hole section and a second hole section, and the first hole section is connected with the second hole section and is positioned on one side, close to the exhaust check valve plate, of the second hole section; the hole wall of the first hole section is a part of the surface of the second spherical surface, and the hole wall of the first hole section is used for being attached to the surface of the spherical plate.

According to another aspect of the present invention, there is provided a scroll compressor comprising a fixed scroll assembly, wherein the fixed scroll assembly is the above-described fixed scroll assembly.

The static vortex disc assembly comprises a static vortex disc and an exhaust check valve plate, wherein the exhaust check valve plate is used for closing or opening an exhaust hole; in addition, the exhaust check valve plate does not need to change the thickness, and the problems of increased exhaust resistance and power consumption are avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view illustrating a normal operation of a related art exhaust valve plate;

FIG. 2 is a schematic view showing a related art vent plate pressed into a vent;

FIG. 3 illustrates a top view of a first embodiment of a non-orbiting scroll assembly in accordance with the present invention;

FIG. 4 illustrates a cross-sectional view of a first embodiment of a non-orbiting scroll assembly in accordance with the present invention;

FIG. 5 illustrates a side view of a first embodiment of a non-orbiting scroll assembly in accordance with the present invention;

FIG. 6 illustrates a top view of a first plate segment of a non-orbiting scroll assembly according to the present invention as a spherical plate;

FIG. 7 illustrates a cross-sectional view of a first plate segment of a non-orbiting scroll assembly according to the present invention as a spherical plate;

FIG. 8 illustrates a cross-sectional view of an embodiment of an anti-recess structure of a non-orbiting scroll assembly according to the present invention;

FIG. 9 illustrates a cross-sectional view of a second embodiment of a non-orbiting scroll assembly in accordance with the present invention;

FIG. 10 illustrates a top view of one embodiment of a lift stop of the non-orbiting scroll assembly in accordance with the present invention;

FIG. 11 illustrates a top view of another embodiment of an anti-indent arrangement of the non-orbiting scroll assembly in accordance with the present invention;

FIG. 12 shows a cross-sectional view of the anti-dimpling structure of FIG. 11;

FIG. 13 illustrates a top view of a third embodiment of a non-orbiting scroll assembly in accordance with the present invention;

FIG. 14 illustrates a cross-sectional view of a third embodiment of a non-orbiting scroll assembly in accordance with the present invention;

FIG. 15 illustrates a top view of another embodiment of a lift stop of the non-orbiting scroll assembly in accordance with the present invention;

FIG. 16 shows a cross-sectional view of the lift stop of FIG. 15;

FIG. 17 illustrates a cross-sectional view of a fourth embodiment of a non-orbiting scroll assembly in accordance with the present invention;

FIG. 18 illustrates a top view of a first plate segment of a non-orbiting scroll assembly according to the present invention as an arcuate plate;

FIG. 19 illustrates a cross-sectional view of a first plate segment of a non-orbiting scroll assembly according to the present invention as an arcuate plate;

FIG. 20 illustrates a top view of yet another embodiment of an anti-indent arrangement of the non-orbiting scroll assembly in accordance with the present invention;

FIG. 21 shows a cross-sectional view of the anti-dimpling structure of FIG. 20;

FIG. 22 shows a side view of the anti-dimpling structure of FIG. 20;

FIG. 23 illustrates a cross-sectional view of the anti-dimpling structure of FIG. 22;

FIG. 24 shows a cross-sectional view of a fifth embodiment of the non-orbiting scroll assembly according to the present invention;

FIG. 25 illustrates a top view of yet another embodiment of a lift stop of the non-orbiting scroll assembly in accordance with the present invention;

FIG. 26 shows a cross-sectional view of the lift stop of FIG. 25;

FIG. 27 shows a cross-sectional view of a sixth embodiment of a non-orbiting scroll assembly according to the present invention;

figure 28 shows a cross-sectional view of the fixed scroll assembly of figure 27;

FIG. 29 shows a cross-sectional view of a seventh embodiment of a non-orbiting scroll assembly according to the present invention;

figure 30 shows a cross-sectional view of the fixed scroll assembly of figure 29.

Wherein the figures include the following reference numerals:

10. a static scroll pan; 11. an exhaust hole; 12. mounting an end face; 20. an exhaust check valve plate; 21. a first plate section; 30. an anti-indent structure; 31. a contact surface; 40. a lift limiter; 41. a through hole; 411. a first bore section; 412. a second bore section;

1. an exhaust port; 2. an air discharge valve plate.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The present invention provides a fixed scroll assembly, referring to fig. 3 to 30, including: the static scroll disk 10 is provided with an exhaust hole 11; the exhaust check valve plate 20 is connected with the fixed scroll 10, the exhaust check valve plate 20 is provided with a first plate section 21, and the first plate section 21 is opposite to the exhaust hole 11; the first plate section 21 is an arc-shaped plate, and the arc-shaped plate is arranged in a concave manner towards the direction far away from the exhaust hole 11; alternatively, the first plate segment 21 is a spherical plate, and the spherical plate is concavely disposed toward a direction away from the exhaust hole 11.

The static scroll disk assembly comprises a static scroll disk 10 and an exhaust check valve plate 20, wherein the exhaust check valve plate 20 is used for closing or opening an exhaust hole 11, and the first plate section 21 of the exhaust check valve plate 20 is an arc-shaped plate or a spherical plate, so that the rigidity of the exhaust check valve plate 20 is increased, the exhaust check valve plate 20 can bear larger pressure, the exhaust check valve plate can be prevented from being pressed into the exhaust hole 11 when a compressor is stopped, the check failure is further prevented, the problem that the compressor is stopped and reversed to generate abnormal noise is solved, and the reliability of the operation of the compressor is improved; in addition, the thickness of the exhaust check valve plate 20 does not need to be changed, and the problems of increased exhaust resistance and power consumption are avoided.

Specifically, the first plate segment 21 of the exhaust check valve sheet 20 is an arc-shaped plate or a spherical plate which can bear larger pressure, and the principle is the same as that of an arch bridge.

Specifically, the spherical plate is a partial sphere of a hollow sphere.

In the present embodiment, the discharge hole 11 is provided on the mounting end surface 12 of the fixed scroll 10; the fixed scroll assembly further comprises: and the anti-concave structure 30 is inserted into the exhaust hole 11, and the anti-concave structure 30 is arranged to protrude out of the mounting end surface 12 to support the first plate section 21. It should be noted that, because the fixed scroll disk 10 of the scroll compressor is made of an aluminum alloy material, the material is soft, and when the compressor operates, the exhaust check valve plate 20 frequently flaps the position of the exhaust hole, which inevitably causes the deformation of the contact part between the exhaust hole and the exhaust check valve plate 20, resulting in the increase of check leakage. The split type anti-concave structure 30 is made of materials such as steel, iron or ceramics, is arranged in the discharge hole in an interference fit mode, has the functions of wear resistance and beating resistance, and accordingly improves the reliability of the discharge hole.

In the present embodiment, the anti-indent structure 30 is a hollow cylinder.

In one embodiment, the end of the anti-indent structure 30 for contacting the first plate segment 21 is provided with a contact surface 31, the contact surface 31 is a partial surface of the first arc-shaped surface, the contact surface 31 is for fitting with the surface of the arc-shaped plate, and the contact surface 31 is ring-shaped. In particular, the provision of the contact surface 31 serves to seal against flow.

In one embodiment, one end of the anti-concavity structure 30 contacting the first plate segment 21 is provided with a contact surface 31, the contact surface 31 is a partial surface of a first spherical surface, the contact surface 31 is used for being attached to the surface of a spherical plate, and the contact surface 31 is annular; or, the contact surface 31 is a second arc-shaped surface, the second arc-shaped surface is connected end to form a ring shape, and the contact surface 31 and the spherical plate are in line contact. In particular, the provision of the contact surface 31 serves to seal against flow. Wherein, the contact surface 31 is used for being laminated with the surface of spherical board mutually and is the line contact between contact surface 31 and the spherical board, increases sealed effect, and the reliability is better.

In one embodiment, the anti-indent structure 30 is interference fit with the vent hole 11.

In one embodiment, the indent preventing structure 30 is integrally formed with the fixed scroll 10. Such an arrangement reduces the number of parts.

In this embodiment, the fixed scroll assembly further comprises: and the lift limiter 40 is connected with the fixed scroll 10, and the lift limiter 40 is arranged on one side of the exhaust check valve plate 20 far away from the fixed scroll 10 to stop the exhaust check valve plate 20.

In one embodiment, the lift limiter 40 is provided with a through hole 41, and the through hole 41 is disposed opposite to the first plate section 21. The through holes 41 are arranged, so that the flapping contact of the lift limiter 40 and the exhaust check valve plate 20 is changed from point contact to circular line contact, the flapping stability of the exhaust check valve plate 20 is improved, and the torsional deformation of the exhaust check valve plate 20 during flapping is reduced.

In one embodiment, the through hole 41 includes a first hole section 411 and a second hole section 412, and the first hole section 411 and the second hole section 412 are connected and located on one side of the second hole section 412 close to the exhaust check valve sheet 20; the hole wall of the first hole section 411 is a partial surface of the third arc-shaped surface, and the hole wall of the first hole section 411 is used for being attached to the surface of the arc-shaped plate. Specifically, the surface of the arc plate corresponds to the hole wall of the first hole section 411, so that the lift limiter 40 and the exhaust check valve plate 20 are in surface contact when flapping, the contact area is increased, and meanwhile, the flapping noise is reduced. In addition, the second hole section 412 is arranged to facilitate the exhaust check valve plate 20 to be timely separated from the lift limiter 40, so as to prevent the exhaust check valve plate 20 from being stuck together, and thus the exhaust check valve plate 20 is more stable when being flapped.

In one embodiment, the through hole 41 includes a first hole section 411 and a second hole section 412, and the first hole section 411 and the second hole section 412 are connected and located on one side of the second hole section 412 close to the exhaust check valve sheet 20; the hole wall of the first hole section 411 is a partial surface of the second spherical surface, and the hole wall of the first hole section 411 is used for being attached to the surface of the spherical plate. The part of the lift limiter 40 in flapwise contact with the exhaust check valve plate 20 is set to be a spherical surface, so that the lift limiter 40 is in flapwise contact with the exhaust check valve plate 20 through the spherical surface, the contact area is increased, and meanwhile, the flapwise noise is reduced. Moreover, the second hole section 412 is provided to facilitate the exhaust check valve plate 20 to be separated from the lift limiter 40 in time, so as to prevent the exhaust check valve plate and the lift limiter from being stuck together.

In the present embodiment, the indent preventing structure 30 is made of any one material of steel, iron, and ceramic. Such an arrangement enables the anti-cove structure 30 to resist wear and flapping.

In the first embodiment, as shown in fig. 3 to 5, the first plate section 21 is a spherical plate, and the spherical plate is recessed toward a direction away from the exhaust hole 11, it should be noted that the first plate section 21 is designed to be a spherical arched valve plate (similar to an arched bridge structure, and capable of bearing a larger load), so that the rigidity of the exhaust check valve plate 20 is enhanced, and the exhaust check valve plate 20 can bear a larger pressure, thereby preventing the exhaust check valve plate 20 from being pressed into the exhaust hole 11 due to insufficient rigidity when the compressor is stopped. The contact surface 31 is a second arc-shaped surface which is connected end to end and is annular, and the contact surface 31 is in line contact with the spherical plate. The indent preventing structure 30 is interference-fitted with the exhaust hole 11.

In the second embodiment, as shown in fig. 9, the first plate segment 21 is a spherical plate that is concavely provided toward a direction away from the exhaust hole 11. One end of the anti-concave structure 30, which is used for being in contact with the first plate section 21, is provided with a contact surface 31, the contact surface 31 is a partial surface of a first spherical surface, the contact surface 31 is used for being attached to the surface of the spherical plate, and the contact surface 31 is annular, so that line contact is changed into surface contact, the sealing effect is increased, and the reliability is better. Be provided with through-hole 41 on the lift stopper 40, through-hole 41 sets up with first plate section 21 relatively for the beat contact of lift stopper 40 and exhaust check valve piece 20 is the contact of ring line by the point contact instead, increases spherical board flapping stability, reduces the torsional deformation that appears when exhaust check valve piece 20 beats. The indent preventing structure 30 is interference-fitted with the exhaust hole 11.

In the third embodiment, as shown in fig. 13 and 14, the first plate segment 21 is a spherical plate that is concavely provided toward a direction away from the exhaust hole 11. One end of the anti-concave structure 30, which is used for being in contact with the first plate section 21, is provided with a contact surface 31, the contact surface 31 is a partial surface of a first spherical surface, the contact surface 31 is used for being attached to the surface of the spherical plate, and the contact surface 31 is annular, so that line contact is changed into surface contact, the sealing effect is increased, and the reliability is better. The lift limiter 40 is provided with a through hole 41, and the through hole 41 is opposite to the first plate section 21; the through hole 41 comprises a first hole section 411 and a second hole section 412, and the first hole section 411 and the second hole section 412 are connected and are positioned on one side of the second hole section 412 close to the exhaust check valve sheet 20; the hole wall of the first hole section 411 is a partial surface of the second spherical surface, and the hole wall of the first hole section 411 is used for being attached to the surface of the spherical plate. The indent preventing structure 30 is interference-fitted with the exhaust hole 11.

In the fourth embodiment, as shown in fig. 17, the first plate segment 21 is an arc-shaped plate, and the arc-shaped plate is concavely disposed toward a direction away from the exhaust hole 11. One end of the anti-concave structure 30, which is used for being in contact with the first plate section 21, is provided with a contact surface 31, the contact surface 31 is a partial surface of the first arc-shaped surface, the contact surface 31 is used for being attached to the surface of the arc-shaped plate, and the contact surface 31 is annular. The first plate section 21 of the exhaust check valve sheet 20 is configured as an arc-shaped plate structure with an upward arch, and the corresponding contact surface 31 is configured as an arc-shaped surface and corresponds to the first plate section 21, which also plays a role in increasing the carrying capacity of the exhaust check valve sheet 20. The indent preventing structure 30 is interference-fitted with the exhaust hole 11.

In the fifth embodiment, as shown in fig. 24, the first plate section 21 is an arc-shaped plate, and the arc-shaped plate is concavely disposed toward a direction away from the exhaust hole 11. One end of the anti-concave structure 30, which is used for being in contact with the first plate section 21, is provided with a contact surface 31, the contact surface 31 is a partial surface of the first arc-shaped surface, the contact surface 31 is used for being attached to the surface of the arc-shaped plate, and the contact surface 31 is annular. The lift limiter 40 is provided with a through hole 41, and the through hole 41 is opposite to the first plate section 21; the through hole 41 comprises a first hole section 411 and a second hole section 412, and the first hole section 411 and the second hole section 412 are connected and are positioned on one side of the second hole section 412 close to the exhaust check valve sheet 20; the hole wall of the first hole section 411 is a partial surface of the third arc-shaped surface, and the hole wall of the first hole section 411 is used for being attached to the surface of the arc-shaped plate. The indent preventing structure 30 is interference-fitted with the exhaust hole 11.

In the sixth embodiment, as shown in fig. 27, the first plate segment 21 is a spherical plate that is concavely provided toward a direction away from the exhaust hole 11. One end of the anti-concave structure 30, which is used for being in contact with the first plate section 21, is provided with a contact surface 31, the contact surface 31 is a partial surface of a first spherical surface, the contact surface 31 is used for being attached to the surface of the spherical plate, and the contact surface 31 is annular, so that line contact is changed into surface contact, the sealing effect is increased, and the reliability is better. The lift limiter 40 is provided with a through hole 41, and the through hole 41 is opposite to the first plate section 21; the through hole 41 comprises a first hole section 411 and a second hole section 412, and the first hole section 411 and the second hole section 412 are connected and are positioned on one side of the second hole section 412 close to the exhaust check valve sheet 20; the hole wall of the first hole section 411 is a partial surface of the second spherical surface, and the hole wall of the first hole section 411 is used for being attached to the surface of the spherical plate. The indent preventing structure 30 is integrally formed with the fixed scroll 10.

In the seventh embodiment, as shown in fig. 29, the first plate segment 21 is an arc-shaped plate, and the arc-shaped plate is concavely provided toward a direction away from the exhaust hole 11. One end of the anti-concave structure 30, which is used for being in contact with the first plate section 21, is provided with a contact surface 31, the contact surface 31 is a partial surface of the first arc-shaped surface, the contact surface 31 is used for being attached to the surface of the arc-shaped plate, and the contact surface 31 is annular. The lift limiter 40 is provided with a through hole 41, and the through hole 41 is opposite to the first plate section 21; the through hole 41 comprises a first hole section 411 and a second hole section 412, and the first hole section 411 and the second hole section 412 are connected and are positioned on one side of the second hole section 412 close to the exhaust check valve sheet 20; the hole wall of the first hole section 411 is a partial surface of the third arc-shaped surface, and the hole wall of the first hole section 411 is used for being attached to the surface of the arc-shaped plate. The indent preventing structure 30 is integrally formed with the fixed scroll 10.

It should be noted that the present application is not limited to the seven embodiments described above, and any fixed scroll assembly combined by the above technical features of the present application is within the scope of the present application.

The utility model provides a quiet whirlpool dish subassembly makes the big scroll compressor's in exhaust hole exhaust check valve piece good reliability, takes place the reversal when preventing that the compressor from shutting down, reduces the noise.

The invention also provides a scroll compressor which comprises the fixed scroll assembly, wherein the fixed scroll assembly is the fixed scroll assembly in the embodiment.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-orbiting scroll assembly comprising:

the static scroll disk (10), wherein the static scroll disk (10) is provided with an exhaust hole (11);

the exhaust check valve plate (20) is connected with the fixed scroll (10), the exhaust check valve plate (20) is provided with a first plate section (21), and the first plate section (21) is opposite to the exhaust hole (11);

the first plate section (21) is an arc-shaped plate, and the arc-shaped plate is sunken towards the direction far away from the exhaust hole (11); or, the first plate section (21) is a spherical plate, and the spherical plate is concavely arranged towards the direction far away from the exhaust hole (11).

2. The fixed scroll assembly as claimed in claim 1, wherein the discharge hole (11) is provided on a mounting end face (12) of the fixed scroll (10); the fixed scroll assembly further comprises:

the anti-concave structure (30) is inserted into the exhaust hole (11), and the anti-concave structure (30) protrudes out of the mounting end face (12) to support the first plate section (21).

3. The non-orbiting scroll assembly according to claim 2, wherein the anti-indent structure (30) is a hollow cylinder.

4. The non-orbiting scroll assembly according to claim 3, wherein an end of the anti-indent structure (30) for contacting the first plate segment (21) is provided with a contact surface (31), the contact surface (31) being a partial surface of a first arcuate surface, the contact surface (31) being for abutting against a surface of the arcuate plate, the contact surface (31) being annular.

5. The non-orbiting scroll assembly according to claim 3, wherein an end of the anti-indent structure (30) for contacting the first plate segment (21) is provided with a contact surface (31), the contact surface (31) being a partial surface of a first spherical surface, the contact surface (31) being for abutting against a surface of the spherical plate, the contact surface (31) being annular; or,

contact surface (31) are the second arcwall face, the end to end of second arcwall face is the annular, contact surface (31) with be line contact between the spherical board.

6. The non-orbiting scroll assembly according to claim 2, wherein the anti-indent structure (30) is interference fitted with the discharge hole (11); or the inward concave prevention structure (30) and the fixed scroll (10) are integrally formed.

7. The non-orbiting scroll assembly as claimed in any one of claims 1 to 6, further comprising:

the lift limiter (40) is connected with the fixed scroll (10), and the lift limiter (40) is arranged on one side, away from the fixed scroll (10), of the exhaust check valve plate (20) to stop the exhaust check valve plate (20).

8. The non-orbiting scroll assembly according to claim 7, wherein the lift limiter (40) is provided with a through hole (41), the through hole (41) being disposed opposite to the first plate section (21).

9. The non-orbiting scroll assembly according to claim 8, wherein the through hole (41) comprises a first hole section (411) and a second hole section (412), the first hole section (411) and the second hole section (412) being connected and located at a side of the second hole section (412) close to the discharge check valve sheet (20); the hole wall of the first hole section (411) is a partial surface of a third arc-shaped surface, and the hole wall of the first hole section (411) is attached to the surface of the arc-shaped plate.

10. The non-orbiting scroll assembly according to claim 8, wherein the through hole (41) comprises a first hole section (411) and a second hole section (412), the first hole section (411) and the second hole section (412) being connected and located at a side of the second hole section (412) close to the discharge check valve sheet (20); the hole wall of the first hole section (411) is a partial surface of the second spherical surface, and the hole wall of the first hole section (411) is used for being attached to the surface of the spherical plate.

11. A scroll compressor comprising a non-orbiting scroll assembly, wherein the non-orbiting scroll assembly is as claimed in any one of claims 1 to 10.