Stationary scroll assembly and scroll compressor

Abstract

The present invention provides a fixed scroll assembly and a scroll compressor. The fixed scroll assembly includes: a fixed scroll, provided with an exhaust hole; an exhaust check valve plate connected to the fixed scroll, the exhaust check valve plate having a first plate segment, the first plate segment being arranged opposite the exhaust hole; the first plate segment being an arcuate plate, the arcuate plate being recessed away from the exhaust hole; or the first plate segment being a spherical plate, the spherical plate being recessed away from the exhaust hole. The fixed scroll assembly of the present invention solves the problem of the exhaust valve plate being recessed at the exhaust port of scroll compressors in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of compressors, and in particular to a stationary scroll assembly and a scroll compressor. Background Art

[0002] The exhaust port 1 on the fixed scroll disk of the scroll compressor in the prior art is relatively large, and there is a problem that the exhaust valve plate 2 is pressed into the exhaust port 1 after the compressor stops, resulting in failure of the check valve, the compressor stops and reverses, and abnormal noise is emitted. Figure 1 and Figure 2 Currently, the common practice is to increase the thickness of the exhaust valve plate or increase its rigidity.

[0003] However, since the exhaust check valve is installed at the exhaust port, when the compressor starts and operates normally and exhausts gas, the gas force pushes the exhaust check valve open to exhaust. Therefore, the thickness of the exhaust valve plate cannot be designed to be too thick, otherwise the valve plate needs to overcome a large elastic force to open, and then requires a large thrust, which will cause the exhaust resistance to increase and lead to increased power consumption. In addition, there is also the hidden danger of damage to the vortex disk teeth due to over-compression. Summary of the Invention

[0004] The main purpose of the present invention is to provide a fixed scroll assembly and a scroll compressor to solve the problem of concave exhaust valve plate at the exhaust port of the scroll compressor in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a static vortex assembly is provided, comprising: a static vortex, on which an exhaust hole is provided; an exhaust check valve plate connected to the static vortex, the exhaust check valve plate having a first plate section, the first plate section being arranged opposite to the exhaust hole; the first plate section being an arc-shaped plate, the arc-shaped plate being recessed in a direction away from the exhaust hole; or, the first plate section being a spherical plate, the spherical plate being recessed in a direction away from the exhaust hole.

[0006] Furthermore, the exhaust hole is arranged on the mounting end surface of the static scroll; the static scroll assembly also includes: an anti-recessing structure, which is inserted into the exhaust hole, and the anti-recessing structure is protruding from the mounting end surface to support the first plate segment.

[0007] Furthermore, the anti-concave structure is a hollow cylinder.

[0008] Furthermore, the anti-concave structure is provided with a contact surface at one end in contact with the first plate segment. The contact surface is a partial surface of the first arcuate surface. The contact surface is used to fit with the surface of the arcuate plate and is annular.

[0009] Furthermore, a contact surface is provided at one end of the anti-concave structure for contacting the first plate segment, and the contact surface is a partial surface of the first spherical surface. The contact surface is used to fit with the surface of the spherical plate, and the contact surface is annular; or, the contact surface is a second arcuate surface, and the second arcuate surface is connected end to end to form a ring, and there is line contact between the contact surface and the spherical plate.

[0010] Furthermore, the anti-indentation structure is interference-fitted with the exhaust hole; or, the anti-indentation structure is integrally formed with the static vortex disk.

[0011] Furthermore, the fixed scroll assembly also includes: a lift limiter connected to the fixed scroll, and the lift limiter is arranged on a side of the exhaust check valve plate away from the fixed scroll plate to stop the exhaust check valve plate.

[0012] Furthermore, a through hole is provided on the lift limiter, and the through hole is arranged opposite to the first plate segment.

[0013] Furthermore, the through hole includes a first hole section and a second hole section, the first hole section and the second hole section are connected and are located on the side of the second hole section close to the exhaust check valve plate; wherein, the hole wall of the first hole section is a partial surface of the third arc surface, and the hole wall of the first hole section is used to fit with the surface of the arc plate.

[0014] Furthermore, the through hole includes a first hole segment and a second hole segment, the first hole segment and the second hole segment are connected and are located on the side of the second hole segment close to the exhaust check valve plate; wherein, the hole wall of the first hole segment is a partial surface of the second spherical surface, and the hole wall of the first hole segment is used to fit with the surface of the spherical plate.

[0015] According to another aspect of the present invention, a scroll compressor is provided, comprising a fixed scroll assembly, wherein the fixed scroll assembly is the fixed scroll assembly described above.

[0016] The static vortex assembly of the present invention includes a static vortex and an exhaust check valve plate, and the exhaust check valve plate is used to close or open the exhaust hole. Since the first plate section of the exhaust check valve plate of the present application is an arc plate or a spherical plate, the rigidity of the exhaust check valve plate is increased, so that the exhaust check valve plate can withstand greater pressure, and can prevent the exhaust check valve plate from being pressed into the exhaust hole when the compressor is shut down, thereby preventing the occurrence of check failure, compressor shutdown and reversal, and abnormal noise, thereby improving the reliability of the compressor operation; and the exhaust check valve plate does not need to change the thickness, and will not cause the exhaust resistance to increase and the power consumption to increase. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0018] Figure 1It shows a schematic diagram of the exhaust valve plate in the background art when it is working normally;

[0019] Figure 2 A schematic diagram showing the exhaust valve plate in the background art being pressed into the exhaust port;

[0020] Figure 3 A top view of a first embodiment of a fixed scroll assembly according to the present invention is shown;

[0021] Figure 4 A cross-sectional view showing a first embodiment of a fixed scroll assembly according to the present invention;

[0022] Figure 5 A side view showing a first embodiment of a fixed scroll assembly according to the present invention is shown;

[0023] Figure 6 A top view showing a first plate segment of a fixed scroll assembly according to the present invention as a spherical plate;

[0024] Figure 7 A cross-sectional view showing a first plate segment of a fixed scroll assembly according to the present invention as a spherical plate;

[0025] Figure 8 A cross-sectional view showing an embodiment of an anti-dent structure of a fixed scroll assembly according to the present invention;

[0026] Figure 9 A cross-sectional view showing a second embodiment of a fixed scroll assembly according to the present invention;

[0027] Figure 10 A top view showing an embodiment of a lift limiter of a fixed scroll assembly according to the present invention is shown;

[0028] Figure 11 A top view showing another embodiment of the anti-recessing structure of the fixed scroll assembly according to the present invention;

[0029] Figure 12 Shown Figure 11 A cross-sectional view of the anti-concave structure in FIG.

[0030] Figure 13 A top view showing a third embodiment of a fixed scroll assembly according to the present invention;

[0031] Figure 14 A cross-sectional view showing a third embodiment of a fixed scroll assembly according to the present invention;

[0032] Figure 15 A top view showing another embodiment of a lift limiter of a fixed scroll assembly according to the present invention;

[0033] Figure 16Shown Figure 15 A sectional view of the lift limiter in FIG.

[0034] Figure 17 A cross-sectional view showing a fourth embodiment of a fixed scroll assembly according to the present invention;

[0035] Figure 18 A top view showing a first plate segment of a fixed scroll assembly according to the present invention as an arc-shaped plate;

[0036] Figure 19 A cross-sectional view showing a first plate segment of a fixed scroll assembly according to the present invention as an arc-shaped plate;

[0037] Figure 20 A top view showing another embodiment of the anti-recessing structure of the fixed scroll assembly according to the present invention;

[0038] Figure 21 Shown Figure 20 A cross-sectional view of the anti-concave structure in FIG.

[0039] Figure 22 Shown Figure 20 A side view of the anti-recession structure;

[0040] Figure 23 Shown Figure 22 A cross-sectional view of the anti-concave structure in FIG.

[0041] Figure 24 A cross-sectional view showing a fifth embodiment of a fixed scroll assembly according to the present invention;

[0042] Figure 25 A top view showing another embodiment of a lift limiter of a fixed scroll assembly according to the present invention;

[0043] Figure 26 Shown Figure 25 A sectional view of the lift limiter in FIG.

[0044] Figure 27 A cross-sectional view showing a sixth embodiment of a fixed scroll assembly according to the present invention;

[0045] Figure 28 Shown Figure 27 a cross-sectional view of the fixed vortex of the fixed vortex assembly;

[0046] Figure 29 A cross-sectional view showing a seventh embodiment of a fixed scroll assembly according to the present invention;

[0047] Figure 30 Shown Figure 29 A cross-sectional view of the stationary scroll of the stationary scroll assembly.

[0048] The above drawings include the following reference numerals:

[0049] 10. Stationary scroll; 11. Exhaust hole; 12. Mounting end surface; 20. Exhaust check valve disc; 21. First plate segment; 30. Anti-concave structure; 31. Contact surface; 40. Lift limiter; 41. Through hole; 411. First hole segment; 412. Second hole segment;

[0050] 1. Exhaust port; 2. Exhaust valve plate. DETAILED DESCRIPTION

[0051] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0052] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0054] The present invention provides a static vortex assembly, please refer to Figures 3 to 30 , including: a static scroll 10, on which an exhaust hole 11 is provided; an exhaust check valve plate 20, connected to the static scroll 10, the exhaust check valve plate 20 has a first plate segment 21, and the first plate segment 21 is arranged opposite to the exhaust hole 11; the first plate segment 21 is an arc-shaped plate, and the arc-shaped plate is recessed in the direction away from the exhaust hole 11; or the first plate segment 21 is a spherical plate, and the spherical plate is recessed in the direction away from the exhaust hole 11.

[0055] The static vortex assembly of the present invention includes a static vortex 10 and an exhaust check valve plate 20. The exhaust check valve plate 20 is used to close or open the exhaust hole 11. Since the first plate section 21 of the exhaust check valve plate 20 of the present application is an arc-shaped plate or a spherical plate, the rigidity of the exhaust check valve plate 20 is increased, so that the exhaust check valve plate 20 can withstand greater pressure, and can prevent the exhaust check valve plate from being pressed into the exhaust hole 11 when the compressor is shut down, thereby preventing the occurrence of check failure, compressor shutdown and reversal, and abnormal noise, thereby improving the reliability of the compressor operation; and the exhaust check valve plate 20 does not need to change the thickness, and will not cause the exhaust resistance to increase and the power consumption to increase.

[0056] Specifically, the first plate section 21 of the exhaust check valve plate 20 is an arc-shaped plate or a spherical plate that can withstand greater pressure, and the principle is the same as that of the arch bridge.

[0057] Specifically, the spherical plate is a partial sphere of a hollow sphere.

[0058] In this embodiment, the exhaust hole 11 is provided on the mounting end surface 12 of the static scroll 10; the static scroll assembly further includes: an anti-indentation structure 30, which is inserted into the exhaust hole 11 and protrudes from the mounting end surface 12 to support the first plate segment 21. It should be noted that, because the static scroll 10 of the scroll compressor is made of aluminum alloy material, which is relatively soft, the exhaust check valve plate 20 frequently slaps the exhaust hole position when the compressor is running, which will inevitably cause the contact area between the exhaust hole and the exhaust check valve plate 20 to deform, resulting in increased check leakage. The split anti-indentation structure 30 is made of steel, iron, ceramic or other materials, and is installed in the exhaust hole by interference fit, which plays the role of wear resistance and anti-slapping, thereby enhancing the reliability of the discharge port.

[0059] In this embodiment, the anti-recession structure 30 is a hollow cylinder.

[0060] In one embodiment, the end of the anti-recession structure 30 that contacts the first plate segment 21 is provided with a contact surface 31. This contact surface 31 is a portion of the first curved surface and is configured to mate with the surface of the curved plate. The contact surface 31 is annular in shape. Specifically, the provision of the contact surface 31 provides a sealing and check function.

[0061] In one embodiment, the end of the anti-recession structure 30 that contacts the first plate segment 21 is provided with a contact surface 31. This contact surface 31 is a portion of the first spherical surface, designed to mate with the surface of the spherical plate, and is annular in shape. Alternatively, the contact surface 31 is a second curved surface, connected end to end to form an annular shape, with line contact between the contact surface 31 and the spherical plate. Specifically, the provision of contact surface 31 provides a sealing and check function. Specifically, the contact surface 31 mates with the surface of the spherical plate, which enhances the sealing effect and reliability compared to line contact between the contact surface 31 and the spherical plate.

[0062] In one embodiment, the anti-dent structure 30 is interference fit with the exhaust hole 11 .

[0063] In one embodiment, the anti-dent structure 30 is integrally formed with the fixed scroll 10. This arrangement reduces the number of parts.

[0064] In this embodiment, the fixed scroll assembly further includes: a lift limiter 40 connected to the fixed scroll 10 , and the lift limiter 40 is arranged on the side of the exhaust check valve plate 20 away from the fixed scroll 10 to stop the exhaust check valve plate 20 .

[0065] In one embodiment, the lift limiter 40 is provided with a through hole 41, which is disposed opposite the first plate segment 21. The provision of the through hole 41 changes the flapping contact between the lift limiter 40 and the exhaust check valve disc 20 from point contact to circular contact, thereby increasing the stability of the flapping of the exhaust check valve disc 20 and reducing torsional deformation that occurs during the flapping of the exhaust check valve disc 20.

[0066] In one embodiment, the through hole 41 includes a first hole section 411 and a second hole section 412, wherein the first hole section 411 and the second hole section 412 are connected and located on the side of the second hole section 412 close to the exhaust check valve plate 20; wherein the hole wall of the first hole section 411 is a partial surface of the third arcuate surface, and the hole wall of the first hole section 411 is used to fit with the surface of the arc 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, increasing the contact area while reducing the flapping noise. In addition, the provision of the second hole section 412 facilitates the exhaust check valve plate 20 to be able to separate from the lift limiter 40 in a timely manner, preventing the two from sticking together, and making the exhaust check valve plate 20 more stable during flapping operation.

[0067] In one embodiment, the through hole 41 includes a first hole section 411 and a second hole section 412, wherein the first hole section 411 and the second hole section 412 are connected and located on the side of the second hole section 412 close to the exhaust check valve plate 20; wherein 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 to fit with the surface of the spherical plate. The part where the lift limiter 40 and the exhaust check valve plate 20 are in contact with each other is set to a spherical surface, so that the lift limiter 40 and the exhaust check valve plate 20 are in contact through the spherical surface when they are slapping, thereby increasing the contact area and reducing the slapping noise. In addition, the setting of the second hole section 412 facilitates the exhaust check valve plate 20 to be able to separate from the lift limiter 40 in time, preventing the two from sticking together.

[0068] In this embodiment, the anti-indentation structure 30 is made of any one of steel, iron and ceramics. Such a configuration enables the anti-indentation structure 30 to be wear-resistant and anti-slapping.

[0069] In the first embodiment, if Figures 3 to 5As shown, the first plate segment 21 is a spherical plate, recessed away from the exhaust hole 11. It should be noted that the design of the first plate segment 21 as a spherical arched valve disc (similar to an arched bridge structure, capable of withstanding greater loads) enhances the rigidity of the exhaust check valve disc 20, allowing it to withstand greater pressure. This prevents the exhaust check valve disc 20 from being pressed into the exhaust hole 11 due to insufficient rigidity when the compressor is shut down. The contact surface 31 is a second curved surface, connected end to end to form a ring. The contact surface 31 and the spherical plate are in line contact. The anti-recession structure 30 has an interference fit with the exhaust hole 11.

[0070] In the second embodiment, if Figure 9 As shown, the first plate segment 21 is a spherical plate, and the spherical plate is recessed in the direction away from the exhaust hole 11. The anti-indentation structure 30 is provided with a contact surface 31 at one end for contacting the first plate segment 21. The contact surface 31 is a partial surface of the first spherical surface. The contact surface 31 is used to fit with the surface of the spherical plate. The contact surface 31 is annular, which changes the line contact into surface contact, thereby increasing the sealing effect and improving the reliability. A through hole 41 is provided on the lift limiter 40. The through hole 41 is arranged relative to the first plate segment 21, so that the flapping contact between the lift limiter 40 and the exhaust check valve plate 20 is changed from point contact to circular line contact, thereby increasing the flapping stability of the spherical plate and reducing the torsional deformation that occurs when the exhaust check valve plate 20 flaps. The anti-indentation structure 30 is interference fit with the exhaust hole 11.

[0071] In a third embodiment, Figure 13 and Figure 14 As shown, the first plate segment 21 is a spherical plate that is recessed in a direction away from the exhaust hole 11. The anti-indentation structure 30 is provided with a contact surface 31 at one end that contacts the first plate segment 21. The contact surface 31 is a partial surface of the first spherical surface and is used to fit the surface of the spherical plate. The contact surface 31 is annular, which transforms line contact into surface contact, thereby increasing the sealing effect and improving reliability. The lift limiter 40 is provided with a through hole 41, which is arranged opposite to the first plate segment 21. The through hole 41 includes a first hole segment 411 and a second hole segment 412. The first hole segment 411 and the second hole segment 412 are connected and located on the side of the second hole segment 412 close to the exhaust check valve plate 20. The hole wall of the first hole segment 411 is a partial surface of the second spherical surface and is used to fit the surface of the spherical plate. The anti-indentation structure 30 is interference fit with the exhaust hole 11.

[0072] In the fourth embodiment, Figure 17As shown, the first plate segment 21 is an arc-shaped plate, which is recessed in a direction away from the exhaust hole 11. The anti-indentation structure 30 is provided with a contact surface 31 at one end thereof for contacting the first plate segment 21. The contact surface 31 is a partial surface of the first arc-shaped surface, and is used to fit the surface of the arc-shaped plate. The contact surface 31 is annular. The first plate segment 21 of the exhaust check valve plate 20 is configured as an upwardly arched arc-shaped plate structure, and the corresponding contact surface 31 is configured as an arc-shaped surface, corresponding to the first plate segment 21, which also serves to increase the load-bearing capacity of the exhaust check valve plate 20. The anti-indentation structure 30 is interference-fitted with the exhaust hole 11.

[0073] In the fifth embodiment, Figure 24 As shown, the first plate segment 21 is an arc-shaped plate, which is recessed in a direction away from the exhaust hole 11. The anti-indentation structure 30 is provided with a contact surface 31 at one end thereof for contacting the first plate segment 21. The contact surface 31 is a partial surface of the first arc-shaped surface, and is used to fit the surface of the arc-shaped plate. The contact surface 31 is annular. A through hole 41 is provided on the lift limiter 40, and the through hole 41 is arranged opposite to the first plate segment 21. The through hole 41 includes a first hole segment 411 and a second hole segment 412, which are connected and located on the side of the second hole segment 412 close to the exhaust check valve plate 20. The hole wall of the first hole segment 411 is a partial surface of the third arc-shaped surface, and is used to fit the surface of the arc-shaped plate. The anti-indentation structure 30 is interference fit with the exhaust hole 11.

[0074] In the sixth embodiment, Figure 27 As shown, the first plate segment 21 is a spherical plate, which is recessed in the direction away from the exhaust hole 11. The anti-indentation structure 30 is provided with a contact surface 31 at one end that contacts the first plate segment 21. The contact surface 31 is a partial surface of the first spherical surface. The contact surface 31 is used to fit the surface of the spherical plate. The contact surface 31 is annular, which changes the line contact into surface contact, thereby increasing the sealing effect and improving the reliability. A through hole 41 is provided on the lift limiter 40, and the through hole 41 is arranged opposite to the first plate segment 21; the through hole 41 includes a first hole segment 411 and a second hole segment 412, which are connected and located on the side of the second hole segment 412 close to the exhaust check valve plate 20; wherein the hole wall of the first hole segment 411 is a partial surface of the second spherical surface, and the hole wall of the first hole segment 411 is used to fit the surface of the spherical plate. The anti-indentation structure 30 is integrally formed with the static scroll 10.

[0075] In the seventh embodiment, as Figure 29As shown, the first plate segment 21 is an arc-shaped plate, and the arc-shaped plate is recessed in the direction away from the exhaust hole 11. The anti-indentation structure 30 is provided with a contact surface 31 at one end for contacting the first plate segment 21. The contact surface 31 is a partial surface of the first arc-shaped surface. The contact surface 31 is used to fit with the surface of the arc-shaped plate. The contact surface 31 is annular. A through hole 41 is provided on the lift limiter 40. The through hole 41 is arranged opposite to the first plate segment 21. The through hole 41 includes a first hole segment 411 and a second hole segment 412. The first hole segment 411 and the second hole segment 412 are connected and are located on the side of the second hole segment 412 close to the exhaust check valve plate 20. The hole wall of the first hole segment 411 is a partial surface of the third arc-shaped surface. The hole wall of the first hole segment 411 is used to fit with the surface of the arc-shaped plate. The anti-indentation structure 30 is integrally formed with the static scroll 10.

[0076] It should be noted that the present application is not limited to the above-mentioned seven embodiments, and any static scroll assembly composed of the above-mentioned technical features of the present application falls within the scope of protection of the present application.

[0077] The static scroll assembly of the present application improves the reliability of the exhaust check valve plate of the scroll compressor with a large exhaust hole, prevents the compressor from reversing when it stops, and reduces noise.

[0078] The present invention further provides a scroll compressor, comprising a stationary scroll assembly, wherein the stationary scroll assembly is the stationary scroll assembly in the above embodiment.

[0079] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0080] The static vortex assembly of the present invention includes a static vortex 10 and an exhaust check valve plate 20. The exhaust check valve plate 20 is used to close or open the exhaust hole 11. Since the first plate section 21 of the exhaust check valve plate 20 of the present application is an arc-shaped plate or a spherical plate, the rigidity of the exhaust check valve plate 20 is increased, so that the exhaust check valve plate 20 can withstand greater pressure, and can prevent the exhaust check valve plate from being pressed into the exhaust hole 11 when the compressor is shut down, thereby preventing the occurrence of check failure, compressor shutdown and reversal, and abnormal noise, thereby improving the reliability of the compressor operation; and the exhaust check valve plate 20 does not need to change the thickness, and will not cause the exhaust resistance to increase and the power consumption to increase.

[0081] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0082] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0083] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A fixed scroll assembly, characterized in that: include: A static vortex (10), wherein the static vortex (10) is provided with an exhaust hole (11); the exhaust hole (11) is provided on a mounting end surface (12) of the static vortex (10); an exhaust check valve plate (20) connected to the static scroll (10), the exhaust check valve plate (20) having a first plate section (21), the first plate section (21) being arranged opposite to the exhaust hole (11); The first plate segment (21) is an arc-shaped plate, and the arc-shaped plate is recessed in a direction away from the exhaust hole (11); or the first plate segment (21) is a spherical plate, and the spherical plate is recessed in a direction away from the exhaust hole (11); The fixed scroll assembly further comprises: an anti-indentation structure (30) inserted into the exhaust hole (11) or integrally formed with the static scroll (10), the anti-indentation structure (30) enclosing an exhaust passage communicating with the exhaust hole (11); The anti-recession structure (30) is provided with a contact surface (31) at one end thereof for contacting the first plate segment (21); the contact surface (31) is provided protruding from the mounting end surface (12) to support the first plate segment (21); the contact surface (31) is annular and is provided around the exhaust passage.

2. The fixed scroll assembly according to claim 1, characterized in that: The anti-concave structure (30) is a hollow cylinder.

3. The fixed scroll assembly according to claim 2, characterized in that: The contact surface (31) is a partial surface of the first arc-shaped surface, and the contact surface (31) is used to fit with the surface of the arc-shaped plate.

4. The fixed scroll assembly according to claim 2, characterized in that: The contact surface (31) is a partial surface of the first spherical surface, and the contact surface (31) is used to fit with the surface of the spherical plate; or, The contact surface (31) is a second arc-shaped surface, the second arc-shaped surface is connected end to end and forms a ring, and there is line contact between the contact surface (31) and the spherical plate.

5. The fixed scroll assembly according to claim 1, characterized in that: The anti-indentation structure (30) is interference-fitted with the exhaust hole (11).

6. The fixed scroll assembly according to any one of claims 1 to 5, characterized in that: The fixed scroll assembly further comprises: A lift limiter (40) is connected to the static vortex (10), and the lift limiter (40) is arranged on a side of the exhaust check valve plate (20) away from the static vortex (10) to stop the exhaust check valve plate (20).

7. The fixed scroll assembly according to claim 6, characterized in that: A through hole (41) is provided on the lift limiter (40), and the through hole (41) is arranged opposite to the first plate section (21).

8. The fixed scroll assembly according to claim 7, characterized in that: The through hole (41) comprises a first hole section (411) and a second hole section (412), wherein the first hole section (411) and the second hole section (412) are connected and located on a side of the second hole section (412) close to the exhaust check valve plate (20); wherein 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 to fit with the surface of the arc-shaped plate.

9. The fixed scroll assembly according to claim 7, characterized in that: The through hole (41) comprises a first hole section (411) and a second hole section (412), wherein the first hole section (411) and the second hole section (412) are connected and located on a side of the second hole section (412) close to the exhaust check valve plate (20); wherein 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 to fit with the surface of the spherical plate.

10. A scroll compressor comprising a fixed scroll assembly, characterized in that: The fixed scroll assembly is the fixed scroll assembly according to any one of claims 1 to 9.

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