Scroll plate and scroll compressor with same

Abstract

The invention relates to a scroll plate for a scroll compressor and the scroll compressor with the scroll plate. The scroll compressor comprises a first scroll plate and a second scroll plate, and the second scroll plate and the first scroll plate are matched to form a compression cavity for compressing a medium. The first scroll plate is a static scroll plate, and the second scroll plate is a dynamic scroll plate. The first scroll and the second scroll each include an end plate and a wrap. A wrap of at least one of the first scroll and the second scroll includes: a wrap body including a band-shaped end face distal from the end plate; and a protrusion extending from an end face of the scroll body, the protrusion extending along at least a portion of a length of the end face of the scroll body. By adopting the scroll plate for the scroll compressor and the scroll compressor provided by the embodiment of the invention, the sealing performance between the static scroll plate and the dynamic scroll plate can be improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to a scroll plate for a scroll compressor and a scroll compressor having the scroll plate. Background Art

[0002] The scroll compressor includes a first scroll and a second scroll, and the first scroll and the second scroll form a plurality of sealed compression chambers. Summary of the invention

[0003] An object of an embodiment of the present invention is to provide a scroll for a scroll compressor and a scroll compressor having the same, whereby, for example, sealing performance between a first scroll and a second scroll can be improved.

[0004] According to an embodiment of the present invention, a scroll plate for a scroll compressor is provided, which scroll plate includes: an end plate; and a scroll wrap extending from the end plate in an axial direction, the scroll wrap including: a scroll wrap body, the scroll wrap body including a band-shaped end surface away from the end plate; and a protrusion extending from the end surface of the scroll wrap body, the protrusion extending along at least a portion of the length of the end surface of the scroll wrap body.

[0005] According to an embodiment of the invention, the protrusion is a single protrusion.

[0006] According to an embodiment of the present invention, the scroll wrap body further comprises: an inner side surface and an outer side surface opposite to each other in a thickness direction of the scroll wrap body, and the single protrusion is adjacent to one of the inner side surface and the outer side surface of the scroll wrap body in the thickness direction of the scroll wrap body.

[0007] According to an embodiment of the present invention, the protrusion includes two protrusions arranged side by side in the width direction of the end surface of the scroll wrap body.

[0008] According to an embodiment of the present invention, the scroll wrap body further comprises: an inner side surface and an outer side surface opposite to each other in the thickness direction of the scroll wrap body, and the two protrusions are respectively adjacent to the inner side surface and the outer side surface of the scroll wrap body in the thickness direction of the scroll wrap body.

[0009] According to an embodiment of the present invention, the scroll wrap further comprises: a groove formed in the end surface of the scroll wrap body for accommodating a seal, and the single protrusion is located at one side of the groove in the width direction of the end surface of the scroll wrap body.

[0010] According to an embodiment of the present invention, the scroll wrap further comprises: a groove formed in the end surface of the scroll wrap body for accommodating the sealing member, and the two protrusions are respectively located on both sides of the groove.

[0011] According to an embodiment of the present invention, the length of the single protrusion is greater than, equal to, or less than the length of the groove.

[0012] According to an embodiment of the present invention, the length of each of the two protrusions is greater than, equal to, or less than the length of the groove.

[0013] According to an embodiment of the present invention, ends of the two protrusions on the center side of the end plate are connected to each other and / or ends of the two protrusions on the outer circumference side of the end plate are connected to each other.

[0014] According to an embodiment of the present invention, the scroll wrap body further comprises: an inner side surface and an outer side surface opposite to each other in the thickness direction of the scroll wrap body; and a first curved surface connecting at least one of the inner side surface and the outer side surface to the end surface of the scroll wrap body.

[0015] According to an embodiment of the present invention, the scroll wrap body further comprises: an inner side surface and an outer side surface facing each other in the thickness direction of the scroll wrap body; and two first curved surfaces respectively connecting the inner side surface and the outer side surface with the end surface.

[0016] According to an embodiment of the present invention, the scroll body also includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the scroll body; and two first curved surfaces respectively connecting the inner side surface and the outer side surface with the end surface, and the scroll plate also includes two second curved surfaces respectively connecting the inner side surface and the outer side surface with the surface of the end plate.

[0017] According to an embodiment of the present invention, the scroll body also includes a starting point located on the center side of the end plate and an end point located on the outer peripheral side of the end plate, and the protrusion extends from a first predetermined point to a second predetermined point along the end surface of the scroll body, the first predetermined point is located in the range from the starting point to a first midpoint 90 degrees away from the starting point, and the second predetermined point is located in the range from a second midpoint 180 degrees away from the end point to the end point.

[0018] According to an embodiment of the present invention, a surface of the protrusion away from the end plate is a plane parallel to the end plate.

[0019] According to an embodiment of the present invention, the protrusion has a trapezoidal, rectangular or semi-elliptical cross section.

[0020] According to an embodiment of the present invention, the protrusions are strip-shaped protrusions.

[0021] According to an embodiment of the present invention, a scroll compressor is also provided, which includes: a first scroll plate, the first scroll plate including a first end plate and a first scroll wrap extending downward from the first end plate; and a second scroll plate, the second scroll plate including a second end plate and a second scroll wrap extending upward from the second end plate, the second scroll plate and the first scroll plate cooperate to form a compression chamber for compressing a medium, wherein at least one of the first scroll plate and the second scroll plate is the above-mentioned scroll plate, wherein the first scroll plate is a fixed scroll plate, and the second scroll plate is a movable scroll plate.

[0022] According to an embodiment of the present invention, the scroll compressor further includes: a shell; a frame installed in the shell, the first scroll plate is fixed in the shell, and the second scroll plate is rotatably supported on the frame; and a driving mechanism, the driving mechanism is fixed at the lower end of the shell and connected to the second scroll plate to drive the second scroll plate to rotate.

[0023] According to an embodiment of the present invention, the vortex body of one of the first and second vortex disks also includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the vortex body of the one vortex disk; and two first curved surfaces connecting the inner side surface and the outer side surface of the vortex body of the one vortex disk with the end surface of the vortex body of the one vortex disk respectively; the vortex body of the other of the first and second vortex disks also includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the vortex body of the other vortex disk, the other of the first and second vortex disks also includes two second curved surfaces connecting the inner side surface and the outer side surface of the vortex body of the other vortex disk with the surface of the end plate of the other vortex disk respectively; and the first curved surface of the one vortex disk and the second curved surface of the other vortex disk are respectively opposite to each other and separated by a predetermined gap.

[0024] According to an embodiment of the present invention, the vortex body of one of the first and second vortex disks also includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the vortex body of the one vortex disk, and the one of the first and second vortex disks also includes two second curved surfaces connecting the inner side surface and the outer side surface of the vortex body of the one vortex disk with the surface of the end plate of the one vortex disk respectively; the vortex body of the other of the first and second vortex disks also includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the vortex body of the other vortex disk; and two first curved surfaces connecting the inner side surface and the outer side surface of the vortex body of the other vortex disk with the end surface of the vortex body of the other vortex disk respectively; and the first curved surface of the other vortex disk and the second curved surface of the one vortex disk are respectively opposite to each other and separated by a predetermined gap.

[0025] According to an embodiment of the present invention, a scroll compressor is also provided, which includes: a first scroll plate, the first scroll plate including a first end plate and a first scroll wrap extending downward from the first end plate; and a second scroll plate, the second scroll plate including a second end plate and a second scroll wrap extending upward from the second end plate, the second scroll plate and the first scroll plate cooperate to form a compression chamber for compressing a medium, wherein at least one of the first scroll plate and the second scroll plate is the above-mentioned scroll plate; and wherein the first scroll plate is an active scroll plate, the second scroll plate is a driven scroll plate, the first scroll plate is driven to rotate by a driving mechanism, and the second scroll plate is driven to rotate by the first scroll plate.

[0026] According to an embodiment of the present invention, the scroll compressor also includes: a bracket, which is located below the second scroll plate, a driving mechanism, including: a motor; and a driving member, the driving member including: a hub portion having an inner hole; and a flange portion extending outward from the end of the hub portion in a radial direction of the hub portion, the driving member is rotatably supported on the bracket, the motor drives the first scroll plate to rotate through the driving member, and the first scroll plate drives the second scroll plate to rotate, and the second end plate of the second scroll plate is rotatably supported on the flange portion of the driving member.

[0027] According to an embodiment of the present invention, the driving member is connected to the first end plate of the first scroll through the flange portion.

[0028] According to an embodiment of the present invention, the scroll compressor further includes: a scroll cover, the scroll cover including: a scroll cover end plate having a center hole; and a cylindrical portion extending downward from the outer periphery of the scroll cover end plate, the cylindrical portion of the scroll cover is connected to the flange portion of the driving member, and the scroll cover end plate of the scroll cover is connected to the first end plate of the first scroll.

[0029] According to an embodiment of the present invention, the scroll compressor further comprises: a fixed shaft, a lower end of which is fixed to the bracket, and the hub of the driving member is rotatably mounted on the fixed shaft.

[0030] According to an embodiment of the present invention, the vortex body of one of the first and second vortex disks also includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the vortex body of the one vortex disk; and two first curved surfaces connecting the inner side surface and the outer side surface of the vortex body of the one vortex disk with the end surface of the vortex body of the one vortex disk respectively; the vortex body of the other of the first and second vortex disks also includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the vortex body of the other vortex disk, the other of the first and second vortex disks also includes two second curved surfaces connecting the inner side surface and the outer side surface of the vortex body of the other vortex disk with the surface of the end plate of the other vortex disk respectively; and the first curved surface of the one vortex disk and the second curved surface of the other vortex disk are respectively opposite to each other and separated by a predetermined gap.

[0031] According to an embodiment of the present invention, the vortex body of one of the first and second vortex disks also includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the vortex body of the one vortex disk, and the one of the first and second vortex disks also includes two second curved surfaces connecting the inner side surface and the outer side surface of the vortex body of the one vortex disk with the surface of the end plate of the one vortex disk respectively; the vortex body of the other of the first and second vortex disks also includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the vortex body of the other vortex disk; and two first curved surfaces connecting the inner side surface and the outer side surface of the vortex body of the other vortex disk with the end surface of the vortex body of the other vortex disk respectively; and the first curved surface of the other vortex disk and the second curved surface of the one vortex disk are respectively opposite to each other and separated by a predetermined gap.

[0032] With the scroll for a scroll compressor and the scroll compressor according to the embodiment of the present invention, for example, sealing performance between the first scroll and the second scroll can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic cross-sectional view of a scroll compressor according to an embodiment of the present invention, taken along an axial direction parallel to the compressor;

[0034] Figure 2 for Figure 1A schematic cross-sectional view of the scroll compressor shown in FIG. 1 taken along a direction perpendicular to the axial direction of the compressor, wherein a first scroll plate and a second scroll plate of the compressor are shown;

[0035] Figure 3 for Figure 1 A schematic top view of a first scroll plate of a scroll compressor shown in ;

[0036] Figure 4 for Figure 1 A schematic cross-sectional view of a first scroll plate of a scroll compressor shown in ;

[0037] Figure 5 for Figure 1 A schematic partial enlarged cross-sectional view of an end portion of a scroll wrap of a first scroll plate of a scroll compressor shown in FIG.

[0038] Figure 6 A schematic partial enlarged cross-sectional view of an end portion of a scroll wrap of a first scroll plate of a scroll compressor according to a modified example of the above embodiment of the present invention;

[0039] Figure 7 A schematic partial enlarged cross-sectional view of an end portion of a scroll wrap of a first scroll plate of a scroll compressor according to another modified example of the above embodiment of the present invention;

[0040] Figure 8 A schematic partial enlarged cross-sectional view of an end portion of a scroll wrap of a first scroll plate of a scroll compressor according to another modified example of the above embodiment of the present invention;

[0041] Fig. 9 A schematic cross-sectional view of a scroll compressor according to another embodiment of the present invention, taken along a direction parallel to the axial direction of the compressor;

[0042] Fig.10 for Fig. 9 A schematic cross-sectional view of the scroll compressor shown in FIG. 1 taken along a direction perpendicular to the axial direction of the compressor, wherein a first scroll plate and a second scroll plate of the compressor are shown; and

[0043] Fig.11 for Fig.10 Schematic top view of the first scroll plate of the scroll compressor shown in . DETAILED DESCRIPTION

[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0045] See also Figures 1 to 4 , Figures 9 to 11The scroll compressor 100 according to the embodiment of the present invention includes a first scroll plate 10 and a second scroll plate 20. The first scroll plate 10 includes a first end plate 19 and a first scroll wrap 11 extending downward from the first end plate 19. The second scroll plate 20 includes a second end plate 29 and a second scroll wrap 21 extending upward from the second end plate 29, and the second scroll plate 20 cooperates with the first scroll plate 10 to form a compression chamber for compressing a medium.

[0046] See also Figure 1 and Figure 2 In an embodiment of the present invention, the first scroll 10 is a fixed scroll, and the second scroll 20 is a movable scroll. In addition, the scroll compressor may further include: a housing 30; a frame 40 installed in the housing 30, the first scroll 10 is fixed in the housing 30, and the second scroll 20 is rotatably supported on the frame 40; and a driving mechanism 50, the driving mechanism 50 is fixed to the lower end of the housing 30 and connected to the second scroll 20 to drive the second scroll 20 to rotate. The driving mechanism 50 may include a motor 60, a driving shaft 61, etc.

[0047] See also Figures 9 to 11 In an embodiment of the present invention, the first scroll 10 is an active scroll, the second scroll 20 is a driven scroll, the first scroll 10 is driven to rotate by a driving mechanism 50, and the second scroll 20 is driven to rotate by the first scroll 10. The scroll compressor 100 may further include: a housing 30, a bracket 41, and the bracket 41 is located below the second scroll 20. The driving mechanism 50 includes: a motor 60; and a driving member 70, the driving member 70 includes: a hub 72 having an inner hole 71; and a flange 73 extending outward from the end of the hub 72 in the radial direction of the hub 72, the driving member 70 is rotatably supported on the bracket 41, the motor 60 drives the first scroll 10 to rotate through the driving member 70, and the first scroll 10 drives the second scroll 20 to rotate, and the second end plate 29 of the second scroll 20 is rotatably supported on the flange 73 of the driving member 70. The driving member 70 may be connected to the first end plate 19 of the first scroll 10 via the flange portion 73 .

[0048] See also Figures 9 to 11In the embodiment of the present invention, the scroll compressor 100 further includes: a scroll cover 80, the scroll cover 80 includes: a scroll cover end plate 82 having a central hole 81; and a cylindrical portion 83 extending downward from the outer periphery of the scroll cover end plate 82, the cylindrical portion 83 of the scroll cover 80 is connected to the flange portion 73 of the driving member 70, and the scroll cover end plate 83 of the scroll cover 80 is connected to the first end plate 19 of the first scroll 10. The scroll compressor 100 may further include: a fixed shaft 90, the lower end of which is fixed to the bracket 41, and the hub portion 72 of the driving member 70 is rotatably mounted on the fixed shaft 90.

[0049] See also Figures 9 to 11 In the embodiment of the present invention, the scroll compressor 100 further includes: an oiling bolt 91, which is accommodated in the inner hole 92 of the fixed shaft 90, and one end of the oiling bolt 91 is located in the oil pool at the bottom of the housing 30, and the other end is connected to the hub 25 of the second scroll plate 20. The lubricating oil accommodated in the oil pool at the bottom of the housing 30 is sucked into the inner hole 92 of the fixed shaft 90. The scroll compressor 100 may also include any other suitable pump.

[0050] Below Figures 3 to 5 as well as Fig.11 The first scroll 10 shown is used as an example to describe the scroll according to the embodiment of the present invention.

[0051] See also Figures 3 to 5 as well as Fig.11 According to an embodiment of the present invention, a scroll plate 10 for a scroll compressor includes an end plate 19 and a scroll wrap 11 extending from the end plate 19 in an axial direction. The scroll wrap 11 includes a scroll wrap body 110, and the scroll wrap body 110 includes a band-shaped end surface 111 away from the end plate 19. The scroll wrap 11 also includes a protrusion 113 extending from the end surface 111 of the scroll wrap body 110, and the protrusion 113 extends along at least a portion of the length of the end surface 111 of the scroll wrap body 110. The protrusion 113 can be a strip-shaped protrusion 113, or a continuous strip-shaped protrusion 113. See Figure 5 , a surface 1131 of the protrusion 113 away from the end plate 19 may be a plane parallel to the end plate 19 .

[0052] See also Figures 5 to 8 In an embodiment according to the present invention, the protrusion 113 has a trapezoidal cross section. In addition, the protrusion 113 may have a cross section of any other suitable shape, such as a rectangular cross section, a semicircular cross section, a semi-elliptical cross section, etc.

[0053] See also Figures 3 to 5 , Fig.11In an embodiment according to the present invention, the protrusion 113 includes two protrusions 113 arranged side by side in the width direction of the end surface 111 of the scroll wrap body 110. The scroll wrap body 110 also includes: an inner side surface 121 and an outer side surface 122 opposite to each other in the thickness direction of the scroll wrap body 110, and the two protrusions 113 are respectively adjacent to the inner side surface 121 and the outer side surface 122 of the scroll wrap body 110 in the thickness direction of the scroll wrap body 110.

[0054] See also Figures 3 to 5 , Fig.11 In an embodiment according to the present invention, the scroll wrap 11 further includes: a groove 115 for placing a seal formed in the end surface 111 of the scroll wrap body 110. Two protrusions 113 are respectively located on both sides of the groove 115. The length of each of the two protrusions 113 can be greater than, equal to, or less than the length of the groove 115.

[0055] See also Figures 3 to 5 , Fig.11 In the embodiment according to the present invention, ends of the two protrusions 113 on the center side of the end plate 19 are connected to each other and / or ends of the two protrusions 113 on the outer peripheral side of the end plate 19 are connected to each other.

[0056] See also Figures 4 to 8 In an embodiment according to the present invention, the scroll body 110 further includes: an inner side surface 121 and an outer side surface 122 opposite to each other in the thickness direction of the scroll body 110; and a first curved surface 116 connecting at least one of the inner side surface 121 and the outer side surface 122 to the end surface 111 of the scroll body 110. For example, the scroll body 110 further includes: an inner side surface 121 and an outer side surface 122 opposite to each other in the thickness direction of the scroll body 110; and two first curved surfaces 116 connecting the inner side surface 121 and the outer side surface 122 to the end surface 111, respectively. Figure 5 , the first curved surface 116 is directly connected to the side surface of the protrusion 113.

[0057] See also Figure 6 and Figure 7 In some embodiments of the present invention, the protrusion 113 is a single protrusion, that is, the scroll wrap 11 includes only one protrusion 113. The scroll wrap body 110 also includes: an inner side surface 121 and an outer side surface 122 that are opposite to each other in the thickness direction of the scroll wrap body 110. The protrusion 113 is adjacent to one of the inner side surface 121 and the outer side surface 122 of the scroll wrap body 110 in the thickness direction of the scroll wrap body 110. That is, the protrusion 113 can be located radially inside or radially outside the end surface 111 of the scroll wrap body 110. Figure 6In the illustrated embodiment, the scroll wrap 11 further includes: a groove 115 for placing a seal formed in the end surface 111 of the scroll wrap body 110, and the protrusion 113 is located on one side of the groove 115 in the width direction of the end surface 111 of the scroll wrap body 110. The length of the protrusion 113 may be greater than, equal to, or less than the length of the groove 115.

[0058] See also Figure 7 , Figure 8 In some embodiments of the present invention, the scroll wrap 11 does not include the groove 115, and the scroll wrap 11 includes only one protrusion 113 ( Figure 7 ) or the scroll 11 includes two protrusions 113 ( Figure 8 )

[0059] See also Figure 3 , Fig.11 In the embodiment according to the present invention, the scroll body 110 further includes a starting point 151 located at the center side of the end plate 19 and an end point 152 located at the outer peripheral side of the end plate 19, and the protrusion 113 extends from a first predetermined point to a second predetermined point along the end surface 111 of the scroll body 110, the first predetermined point is located in the range from the starting point 151 to the first intermediate point, and the second predetermined point is located in the range from the second intermediate point to the end point 152. The first intermediate point is 90 degrees away from the starting point 151, and the second intermediate point is 90 or 180 degrees away from the end point 152.

[0060] See also Figures 4 to 8 In the embodiment according to the present invention, the scroll body 110 further includes: an inner side surface 121 and an outer side surface 122 opposite to each other in the thickness direction of the scroll body 110; and two first curved surfaces 116 respectively connecting the inner side surface 121 and the outer side surface 122 with the end surface 111, and the scroll plate 10 further includes two second curved surfaces 117 respectively connecting the inner side surface 121 and the outer side surface 122 with the surface of the end plate 19. Figure 4 and Figure 5 , one of the first scroll 10 and the second scroll 20 has a first curved surface, and the other of the first scroll 10 and the second scroll 20 has a second curved surface, the first curved surface and the second curved surface are opposite to each other and there is a gap between the first curved surface and the second curved surface. That is, there is a gap between the corner (having the first curved surface) of the volute of one of the first scroll 10 and the second scroll 20 away from the end plate and the corner (having the second curved surface) where the volute of the other of the first scroll 10 and the second scroll 20 is connected to the end plate.

[0061] See also Figures 4 to 8In the embodiment according to the present invention, the first curved surface 116 and the second curved surface 117 may be arc surfaces. That is, the corner of the scroll wrap 11 away from the end plate 19 has an arc shape, and the corner where the scroll wrap 11 and the end plate 19 are connected has an arc shape.

[0062] By using the scroll plate and the scroll compressor for a scroll compressor according to the embodiment of the present invention, for example, the sealing performance between the first scroll plate 10 and the second scroll plate 20 can be improved. That is, by using the scroll plate and the scroll compressor for a scroll compressor according to the embodiment of the present invention, the protrusion 113 is provided on the end surface 111 of the scroll wrap body 110, the sealing performance between the first scroll plate 10 and the second scroll plate 20 is improved, and at the same time, the first scroll plate 10 and the second scroll plate 20 are ensured to be easy to process.

Claims

1. A scroll plate for a scroll compressor, comprising: End plate; as well as A scroll wrap extending from the end plate in an axial direction, the scroll wrap comprising: a scroll wrap body, the scroll wrap body comprising a band-shaped end surface away from the end plate; and a protrusion extending from the end surface of the scroll wrap body, the protrusion extending along at least a portion of the length of the end surface of the scroll wrap body.

2. The scroll plate for a scroll compressor according to claim 1, wherein: The protrusion is a single protrusion.

3. The scroll plate for a scroll compressor according to claim 2, wherein: The scroll wrap body further includes an inner side surface and an outer side surface facing each other in a thickness direction of the scroll wrap body, and the single protrusion is adjacent to one of the inner side surface and the outer side surface of the scroll wrap body in the thickness direction of the scroll wrap body.

4. The scroll plate for a scroll compressor according to claim 1, wherein: The protrusion includes two protrusions arranged side by side in the width direction of the end surface of the scroll wrap body.

5. The scroll plate for a scroll compressor according to claim 4, wherein: The scroll wrap body further includes an inner side surface and an outer side surface facing each other in a thickness direction of the scroll wrap body, and the two protrusions are respectively adjacent to the inner side surface and the outer side surface of the scroll wrap body in the thickness direction of the scroll wrap body.

6. The scroll plate for a scroll compressor according to claim 2, wherein: The scroll wrap further includes: a groove formed in the end surface of the scroll wrap body for accommodating a seal, and the single protrusion is located at one side of the groove in the width direction of the end surface of the scroll wrap body.

7. The scroll plate for a scroll compressor according to claim 4, wherein: The scroll wrap further comprises: a groove formed in the end surface of the scroll wrap body for accommodating a sealing member, and the two protrusions are respectively located on both sides of the groove.

8. The scroll plate for a scroll compressor according to claim 6, wherein: The length of the single protrusion is greater than, equal to, or less than the length of the groove.

9. The scroll plate for a scroll compressor according to claim 7, wherein: The length of each of the two protrusions is greater than, equal to, or less than the length of the groove.

10. The scroll plate for a scroll compressor according to claim 4, 5 or 7, wherein: Ends of the two protrusions on the center side of the end plate are connected to each other and / or ends of the two protrusions on the outer circumference side of the end plate are connected to each other.

11. The scroll plate for a scroll compressor according to claim 1, wherein: The scroll wrap body further includes: an inner side surface and an outer side surface facing each other in a thickness direction of the scroll wrap body; and a first curved surface connecting at least one of the inner side surface and the outer side surface to an end surface of the scroll wrap body.

12. The scroll plate for a scroll compressor according to claim 1, wherein: The scroll wrap body further includes: an inner side surface and an outer side surface facing each other in a thickness direction of the scroll wrap body; and two first curved surfaces respectively connecting the inner side surface and the outer side surface with the end surface.

13. The scroll plate for a scroll compressor according to claim 1, wherein: The scroll body also includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the scroll body; and two first curved surfaces respectively connecting the inner side surface and the outer side surface with the end surface, and the scroll plate also includes two second curved surfaces respectively connecting the inner side surface and the outer side surface with the surface of the end plate.

14. The scroll plate for a scroll compressor according to claim 1, wherein: The scroll body also includes a starting point located on the center side of the end plate and an end point located on the outer peripheral side of the end plate, and the protrusion extends from a first predetermined point to a second predetermined point along the end surface of the scroll body, the first predetermined point is located in the range from the starting point to a first middle point 90 degrees away from the starting point, and the second predetermined point is located in the range from a second middle point 180 degrees away from the end point to the end point.

15. The scroll plate for a scroll compressor according to claim 1, wherein: The surface of the protrusion away from the end plate is a plane parallel to the end plate.

16. The scroll plate for a scroll compressor according to claim 1, wherein: The protrusion has a trapezoidal, rectangular or semi-elliptical cross section.

17. The scroll plate for a scroll compressor according to claim 1 or 16, wherein: The protrusions are strip-shaped protrusions.

18. A scroll compressor, comprising: a first scroll plate including a first end plate and a first scroll wrap extending downwardly from the first end plate; as well as a second scroll plate, the second scroll plate comprising a second end plate and a second scroll wrap extending upward from the second end plate, the second scroll plate and the first scroll plate cooperate to form a compression chamber for compressing a medium, wherein at least one of the first scroll and the second scroll is the scroll according to claim 1, The first scroll is a fixed scroll, and the second scroll is a movable scroll.

19. The scroll compressor of claim 18, further comprising: case; A frame mounted in the housing, wherein the first scroll is fixed in the housing, and the second scroll is rotatably supported on the frame; as well as A driving mechanism is fixed at the lower end of the shell and connected to the second scroll to drive the second scroll to rotate.

20. The scroll compressor of claim 18, wherein: The scroll body of one of the first scroll and the second scroll further includes: an inner side surface and an outer side surface that are opposite to each other in the thickness direction of the scroll body of the one scroll; and two first curved surfaces that connect the inner side surface and the outer side surface of the scroll body of the one scroll to the end surface of the scroll body of the one scroll respectively; The scroll body of the other scroll of the first scroll and the second scroll further includes: an inner side surface and an outer side surface opposite to each other in a thickness direction of the scroll body of the other scroll, and the other scroll of the first scroll and the second scroll further includes two second curved surfaces connecting the inner side surface and the outer side surface of the scroll body of the other scroll to the surface of the end plate of the other scroll respectively; and The first curved surface of the one scroll and the second curved surface of the other scroll are respectively opposite to each other and spaced apart by a predetermined gap.

21. The scroll compressor of claim 18, wherein: The scroll body of one of the first scroll and the second scroll further comprises: an inner side surface and an outer side surface opposite to each other in a thickness direction of the scroll body of the one scroll, and the one of the first scroll and the second scroll further comprises two second curved surfaces connecting the inner side surface and the outer side surface of the scroll body of the one scroll to the surface of the end plate of the one scroll respectively; The scroll body of the other scroll of the first scroll and the second scroll further includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the scroll body of the other scroll; and two first curved surfaces connecting the inner side surface and the outer side surface of the scroll body of the other scroll to the end surface of the scroll body of the other scroll, respectively; and The first curved surface of the other scroll and the second curved surface of the one scroll are respectively opposite to each other and spaced apart by a predetermined gap.

22. A scroll compressor, comprising: a first scroll plate including a first end plate and a first scroll wrap extending downwardly from the first end plate; as well as a second scroll plate, the second scroll plate comprising a second end plate and a second scroll wrap extending upward from the second end plate, the second scroll plate and the first scroll plate cooperate to form a compression chamber for compressing a medium, wherein at least one of the first scroll and the second scroll is the scroll according to claim 1; and The first scroll is an active scroll, the second scroll is a driven scroll, the first scroll is driven to rotate by a driving mechanism, and the second scroll is driven to rotate by the first scroll.

23. The scroll compressor of claim 22, further comprising: A bracket, wherein the bracket is located below the second scroll plate, The driving mechanism comprises: Motors; and A driving member, comprising: a hub portion having an inner hole; and a flange portion extending outward from an end portion of the hub portion in a radial direction of the hub portion, the driving member is rotatably supported on the bracket, the motor drives the first scroll to rotate through the driving member, and the first scroll drives the second scroll to rotate, and the second end plate of the second scroll is rotatably supported on the flange portion of the driving member.

24. The scroll compressor of claim 23, wherein: The driving member is connected to the first end plate of the first scroll through the flange portion.

25. The scroll compressor of claim 24, further comprising: A scroll cover, comprising: a scroll cover end plate having a central hole; and a cylindrical portion extending downward from the outer periphery of the scroll cover end plate, the cylindrical portion of the scroll cover being connected to the flange portion of the driving member, and the scroll cover end plate of the scroll cover being connected to the first end plate of the first scroll.

26. The scroll compressor of claim 24, further comprising: A fixed shaft, the lower end of which is fixed to the bracket, and the hub of the driving member is rotatably mounted on the fixed shaft.

27. The scroll compressor of claim 22, wherein: The scroll body of one of the first scroll and the second scroll further includes: an inner side surface and an outer side surface that are opposite to each other in the thickness direction of the scroll body of the one scroll; and two first curved surfaces that connect the inner side surface and the outer side surface of the scroll body of the one scroll to the end surface of the scroll body of the one scroll respectively; The scroll body of the other scroll of the first scroll and the second scroll further includes: an inner side surface and an outer side surface opposite to each other in a thickness direction of the scroll body of the other scroll, and the other scroll of the first scroll and the second scroll further includes two second curved surfaces connecting the inner side surface and the outer side surface of the scroll body of the other scroll to the surface of the end plate of the other scroll respectively; and The first curved surface of the one scroll and the second curved surface of the other scroll are respectively opposite to each other and spaced apart by a predetermined gap.

28. The scroll compressor of claim 22, wherein: The scroll body of one of the first scroll and the second scroll further comprises: an inner side surface and an outer side surface opposite to each other in a thickness direction of the scroll body of the one scroll, and the one of the first scroll and the second scroll further comprises two second curved surfaces connecting the inner side surface and the outer side surface of the scroll body of the one scroll to the surface of the end plate of the one scroll respectively; The scroll body of the other scroll of the first scroll and the second scroll further includes: an inner side surface and an outer side surface opposite to each other in the thickness direction of the scroll body of the other scroll; and two first curved surfaces connecting the inner side surface and the outer side surface of the scroll body of the other scroll to the end surface of the scroll body of the other scroll, respectively; and The first curved surface of the other scroll and the second curved surface of the one scroll are respectively opposite to each other and spaced apart by a predetermined gap.

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