Scroll compressor, compression mechanism, scroll compressor and refrigeration equipment

Abstract

This invention discloses a scroll plate, a compression mechanism, a scroll compressor, and a refrigeration device. The scroll plate engages with a mating scroll plate to form a compression chamber. The scroll plate or the mating scroll plate has an exhaust port. The scroll plate comprises a plate body and scroll teeth located on one side of the plate body. The scroll teeth have opposing inner and outer profiles. The inner profile has a radially recessed groove located near the disengagement position of the exhaust port. This invention solves the problem of overcompression caused by poor exhaust in existing scroll compressor compression mechanisms.

Description

Technical Field

[0001] This invention relates to the field of electromechanical equipment technology, and in particular to a scroll plate, a compression mechanism, a scroll compressor, and a refrigeration device. Background Technology

[0002] In related technologies, the compression mechanism of a scroll compressor includes a moving scroll and a stationary scroll. The moving scroll teeth of the moving scroll and the stationary scroll teeth of the stationary scroll mesh to form a compression chamber, and the stationary scroll has an exhaust port. The moving and stationary scroll teeth typically disengage simultaneously when the compression chamber connects to the exhaust port. This disengagement usually occurs near the end of the scroll tooth profile and is typically achieved through tooth tip correction. However, during compression, when the scroll compressor exhausts gas through normal disengagement and connection to the exhaust port, the initial exhaust flow area is small, and the rate of change of the initial exhaust flow area is also small. This can lead to over-compression of the refrigerant due to delayed exhaust, increasing compressor power consumption and affecting performance. Summary of the Invention

[0003] The main objective of this invention is to propose a scroll plate that aims to solve the problem of overcompression caused by poor exhaust in the compression mechanism of existing scroll compressors.

[0004] To achieve the above objectives, the present invention proposes a scroll disk for meshing with a mating scroll disk to form a compression chamber. The scroll disk or the mating scroll disk is provided with an exhaust port. The scroll disk comprises:

[0005] The disk body; and

[0006] A vortex tooth is provided on one side of the disc body. The vortex tooth has opposing inner profiles and outer profiles. The inner profile has a radially recessed groove, which is located at the disengagement position adjacent to the exhaust port.

[0007] In one embodiment, when the compression chamber is connected to the exhaust port, the groove is configured to correspond to the tooth tip of the vortex tooth of the mating vortex disk.

[0008] In one embodiment, the groove is disposed within a 60° range from the end of the inner profile near the tooth head of the vortex tooth toward the tooth tail of the vortex tooth.

[0009] In one embodiment, the center of the disk is denoted as point O, the width of the groove in the winding direction of the spiral tooth is the groove width, the projection positions of the parts where the groove intersects the inner profile on both sides in the groove width direction are denoted as points E and F respectively, the line connecting point O and point E is denoted as line OE, the line connecting point O and point F is denoted as line OF, and the angle between line OE and line OF is α, where α ≥ 15°.

[0010] In one embodiment, the depth of the groove in the radial direction of the vortex disk is d1, where 0.1mm≤d1≤1mm.

[0011] In one embodiment, 0.1mm ≤ d1 ≤ 0.3mm.

[0012] In one embodiment, the height of the groove in the axial direction of the vortex disk is h1, and the height of the vortex tooth is h2, wherein 0.5h2≤h1.

[0013] In one embodiment, the scroll disk is a moving scroll disk or a stationary scroll disk.

[0014] The present invention also proposes a compression mechanism, comprising a moving scroll disk and a stationary scroll disk meshing with each other, wherein at least one of the moving scroll disk and the stationary scroll disk is a scroll disk as described above.

[0015] The present invention also proposes a scroll compressor, including the compression mechanism described above.

[0016] The present invention also proposes a refrigeration device, including the scroll compressor described above.

[0017] In the technical solution of this invention, a radially recessed groove is provided on the inner profile of the scroll teeth of the scroll disk, and this groove is located at the disengagement position adjacent to the exhaust port. When the compression chamber formed by the engagement of the scroll disk and the mating scroll disk is connected to the exhaust port, the groove is in the disengagement position between the scroll disk and the mating scroll disk. In this way, the exhaust flow area can be increased when the scroll disk and the mating scroll disk are disengaged, which can effectively prevent over-compression, especially improve over-compression under low pressure ratio conditions, thereby reducing the power consumption of the scroll compressor and achieving the effect of improving the performance of the scroll compressor. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the compression mechanism of the present invention;

[0020] Figure 2 for Figure 1 A schematic cross-sectional view along line AA in the middle;

[0021] Figure 3 for Figure 1 A cross-sectional view along the BB line;

[0022] Figure 4 This is a schematic diagram of the structure of an embodiment of the moving vortex disk of the present invention;

[0023] Figure 5 for Figure 4 A schematic cross-sectional view of the centrally moving scroll disk along the CC line;

[0024] Figure 6 This is a schematic diagram of the structure of an embodiment of the static vortex disk of the present invention;

[0025] Figure 7 for Figure 6 A schematic cross-sectional view of the stationary vortex disk along the DD line.

[0026] Explanation of icon numbers:

[0027] label name label name 10 vortex disk 122 outer profile 101 Exhaust port 123 groove 102 Exhaust bottom hole 124 Tooth 11 Disk body 100 compression mechanism 12 vortex teeth 10a Moving vortex disk 121 Inner profile 10b Static vortex disk

[0028] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0032] This invention proposes a vortex disk 10.

[0033] Please refer to Figures 1 to 7 In one embodiment of the present invention, the scroll disk 10 is used to mesh with a mating scroll disk to form a compression cavity. The scroll disk 10 or the mating scroll disk is provided with an exhaust port 101. The scroll disk 10 includes a disk body 11 and scroll teeth 12 provided on one side of the disk body 11. The scroll teeth 12 have opposing inner profiles 121 and outer profiles 122, which surround the scroll teeth 12. The inner profile 121 is provided with a radially recessed groove 123, which is located at a disengagement position adjacent to the exhaust port 101.

[0034] Specifically, the scroll plate 10 is used in the compression mechanism 100 of a scroll compressor. The compression mechanism 100 includes a meshing scroll plate 10 and a mating scroll plate. The scroll plate 10 can be a moving scroll plate 10a or a stationary scroll plate 10b. For example, when the scroll plate 10 is a moving scroll plate 10a, the mating scroll plate is a stationary scroll plate 10b; when the scroll plate 10 is a stationary scroll plate 10b, the mating scroll plate is a moving scroll plate 10a. The stationary scroll plate 10b has an exhaust hole 101 in the middle of its plate body 11, and the outer periphery of the plate body 11 corresponding to the exhaust hole 101 has concave vortex-shaped stationary scroll teeth. The moving scroll plate 10a has an exhaust bottom hole 102 in the middle of its plate body 11 corresponding to the exhaust hole 101, and the outer periphery of the plate body 11 corresponding to the exhaust bottom hole 102 has vortex-shaped moving scroll teeth. The moving scroll teeth and the stationary scroll teeth mesh with each other to form a compression chamber. The compression mechanism 100 also includes a motor and a crankshaft. The motor includes a rotor and a stator located around the rotor. The crankshaft passes through the middle of the rotor and has an eccentric part at the top. The plate body 11 of the moving scroll plate 10a has a bearing groove on the side away from the moving scroll teeth. A bearing is installed in the bearing groove and is sleeved around the eccentric part. An eccentric sleeve is also provided between the bearing and the eccentric part. When the scroll compressor is working, the motor drives the crankshaft to rotate, which in turn drives the moving scroll plate 10a to rotate eccentrically through the eccentric part of the crankshaft, while the stationary scroll plate 10b remains stationary. This allows the moving scroll teeth to continuously move relative to the stationary scroll teeth, forming a compression chamber with a constantly changing volume. The gas is gradually compressed within several crescent-shaped compression chambers formed by the interlocking of the moving and stationary scroll plates. Finally, exhaust is achieved when the compression chamber connects to the exhaust port 101. For ease of explanation, in the following embodiments, both the moving scroll teeth of the moving scroll plate 10a and the stationary scroll teeth of the stationary scroll plate 10b are referred to as scroll teeth 12 without specific distinction.

[0035] In this embodiment, the scroll disk 10 includes a disk body 11 and scroll teeth 12 disposed on one side of the disk body 11. The scroll teeth 12 have a spiral scroll structure, wherein one end of the scroll teeth 12 near the exhaust port 101 is the tooth head 124, and the other end is the tooth tail. The scroll teeth 12 have opposing inner profiles 121 and outer profiles 122. The inner profile 121 is provided with radially recessed grooves 123, which are disposed at the disengagement position adjacent to the exhaust port 101. That is, when the compression chamber formed by the scroll disk 10 and the mating scroll disk is connected to the exhaust port 101, the grooves 123 are located at the disengagement position of the scroll disk 10 and the mating scroll disk, thereby increasing the exhaust flow area. For example, the grooves 123 can be disposed within a 60° range from the end of the inner profile 121 near the tooth head 124 of the scroll teeth 12 toward the tooth tail of the scroll teeth 12.

[0036] In the technical solution of the present invention, a radially recessed groove 123 is provided on the inner profile 121 of the scroll teeth 12 of the scroll disk 10, and the groove 123 is located at the disengagement position adjacent to the exhaust port 101. When the compression chamber formed by the engagement of the scroll disk 10 and the mating scroll disk is connected to the exhaust port 101, the groove 123 is in the disengagement position between the scroll disk 10 and the mating scroll disk. In this way, the exhaust flow area can be increased when the scroll disk 10 and the mating scroll disk are disengaged, which can effectively prevent over-compression, especially improve over-compression under low pressure ratio conditions, thereby reducing the power consumption of the scroll compressor and achieving the effect of improving the performance of the scroll compressor.

[0037] Furthermore, when the compression chamber is connected to the exhaust port 101, the groove 123 is correspondingly positioned to the tooth tip 124 of the vortex tooth 12 of the mating vortex disk. That is, at the instant the compression chamber connects to the exhaust port 101, the tooth tip 124 of the mating vortex disk just passes through the groove 123. Since the exhaust flow area is small at this time, and the tooth tip 124 is precisely positioned to disengage from the groove 123, the groove 123 helps to increase the exhaust flow area and prevent over-compression. In some cases where the vortex profile remains unchanged, to obtain a lower internal volume ratio vortex to improve performance under low pressure ratio conditions, the shape of the vortex exhaust port 101 is usually adjusted. The vortex compression exhaust angle is advanced, while the disengagement position remains unchanged. In this embodiment, by providing a groove 123 on the inner profile 121 of the vortex tooth 12, when the compression chamber is connected to the exhaust port 101, the tooth head 124 of the vortex tooth 12 just passes through the groove 123 to achieve disengagement. In this way, exhaust and disengagement can be achieved simultaneously and in advance without changing the profile shape of the vortex tooth 12, which simplifies the manufacturing process and reduces costs.

[0038] like Figures 1 to 3 As shown, in one embodiment, the compression mechanism 100 includes a moving scroll plate 10a and a stationary scroll plate 10b, and the scroll teeth 12 of both the moving scroll plate 10a and the stationary scroll plate 10b are provided with grooves 123. When the compression chamber (inner cavity) is connected to the exhaust bottom hole 102 of the moving scroll plate 10a, the tooth heads 124 of the scroll teeth 12 of the stationary scroll plate 10b are correspondingly arranged with the grooves 123 of the scroll teeth 12 of the moving scroll plate 10a; when the compression chamber (outer cavity) is connected to the exhaust hole 101 of the stationary scroll plate 10b, the tooth heads 124 of the scroll teeth 12 of the moving scroll plate 10a are correspondingly arranged with the grooves 123 of the scroll teeth 12 of the stationary scroll plate 10b. In this way, the exhaust and disengagement of the compression mechanism 100 can be advanced simultaneously, which can increase the exhaust flow area when the moving scroll plate 10a disengages from the stationary scroll plate 10b. This can effectively prevent over-compression, especially improve over-compression under low pressure ratio conditions, thereby reducing the power consumption of the scroll compressor and achieving the effect of improving the performance of the scroll compressor.

[0039] like Figure 4 and Figure 6 As shown, in some embodiments, the center of the disk body 11 of the vortex disk 10 is denoted as point O. The width of the groove 123 in the winding direction of the vortex tooth 12 is the groove width of the groove 123. The projection positions of the parts where the two sides of the groove 123 intersect with the inner profile 121 in the groove width direction on the disk body 11 are denoted as points E and F, respectively. The line connecting point O and point E is denoted as line OE, and the line connecting point O and point F is denoted as line OF. The angle between line OE and line OF is α, where α ≥ 15°. This arrangement is to ensure that the flow area is large within a certain angle range in the early stage of exhaust, ensuring smooth exhaust and preventing over-compression in the early stage of exhaust. In the middle and late stages of exhaust, the communication area between the compression chamber and the exhaust port 101 is already relatively large, and smooth exhaust can be achieved without the groove 123.

[0040] like Figure 4 As shown, in one embodiment, the scroll disk 10 is a moving scroll disk 10a. The inner profile 121 of the scroll teeth 12 of the moving scroll disk 10a is provided with a groove 123. The center of the disk body 11 of the moving scroll disk 10a is denoted as point O. The width of the groove 123 in the winding direction of the scroll teeth 12 is the groove width of the groove 123. The projection positions of the parts where the two sides of the groove 123 intersect with the inner profile 121 in the groove width direction on the disk body 11 are denoted as points E and F. The line connecting point O and point E is denoted as line OE, and the line connecting point O and point F is denoted as line OF. The angle between line OE and line OF is α, where α ≥ 15°.

[0041] like Figure 6 As shown, in another embodiment, the scroll disk 10 is a stationary scroll disk 10b. The inner profile 121 of the scroll teeth 12 of the stationary scroll disk 10b is provided with a groove 123. The center of the disk body 11 of the stationary scroll disk 10b is denoted as point O. The width of the groove 123 in the winding direction of the scroll teeth 12 is the groove width of the groove 123. The projection positions of the parts where the two sides of the groove 123 intersect with the inner profile 121 in the groove width direction on the disk body 11 are denoted as points E and F. The line connecting point O and point E is denoted as line OE, and the line connecting point O and point F is denoted as line OF. The angle between line OE and line OF is α, where α ≥ 15°.

[0042] At the instant the compression chamber connects with the exhaust port 101, the flow area is small. At this moment, the tooth tip 124 of the vortex tooth 12 passes through the groove 123. Theoretically, the deeper the groove 123, the larger the exhaust flow area and the smoother the exhaust. However, the deeper the groove 123, the weaker the strength of the vortex tooth 12 at this point, increasing the risk of tooth breakage. To ensure a large flow area during exhaust while maintaining the structural strength of the vortex tooth 12 and avoiding the risk of tooth breakage, such as... Figure 5 and Figure 7 As shown, in some embodiments, the depth of the groove 123 in the radial direction of the vortex disk 10 is d1, where 0.1mm ≤ d1 ≤ 1mm. This ensures that the depth of the groove 123 is not too shallow, thus guaranteeing the exhaust flow area; simultaneously, the depth of the groove 123 is not too deep, thus guaranteeing the structural strength of the vortex tooth 12 and avoiding the risk of tooth breakage. For example, the depth d1 of the groove 123 can be set to 0.1mm, 0.2mm, 0.5mm, 0.8mm, 1mm, etc., according to actual needs. To further guarantee the structural strength of the vortex tooth 12 and further reduce the risk of tooth breakage, optionally, 0.1mm ≤ d1 ≤ 0.3mm.

[0043] like Figure 4 and Figure 5 As shown, in one embodiment, the scroll disk 10 is a moving scroll disk 10a. The inner profile 121 of the scroll teeth 12 of the moving scroll disk 10a is provided with a groove 123. In the radial direction of the moving scroll disk 10a, the depth of the groove 123 is d1, where 0.1mm≤d1≤1mm. In this way, the compression mechanism 100 can be guaranteed to have a large flow area during exhaust, while ensuring the structural strength of the scroll teeth 12 of the moving scroll disk 10a and avoiding the risk of tooth breakage.

[0044] like Figure 6 and Figure 7 As shown, in one embodiment, the scroll disk 10 is a stationary scroll disk 10b. The inner profile 121 of the scroll teeth 12 of the stationary scroll disk 10b is provided with a groove 123. In the radial direction of the stationary scroll disk 10b, the depth of the groove 123 is d1, where 0.1mm≤d1≤1mm. In this way, the compression mechanism 100 can be guaranteed to have a large flow area during exhaust, while ensuring the structural strength of the scroll teeth 12 of the stationary scroll disk 10b and avoiding the risk of tooth breakage.

[0045] like Figure 5 and Figure 7 As shown, in some embodiments, the height of the groove 123 in the axial direction of the scroll disk 10 is h1, and the height of the scroll tooth 12 is h2, where 0.5h2≤h1. In this embodiment, the height of the groove 123 is greater than or equal to half the height of the scroll tooth 12, resulting in a relatively high groove 123. At the instant the compression chamber connects with the exhaust port 101, the exhaust flow area is small. At this time, the scroll tooth 12 of the matching scroll disk passes through the groove 123, which has a relatively high height. This ensures that the flow area of ​​the groove 123 is sufficiently large, allowing for a large exhaust volume in the initial stage and preventing over-compression.

[0046] like Figure 4 and Figure 5As shown, in one embodiment, the scroll disk 10 is a moving scroll disk 10a. The inner profile 121 of the scroll teeth 12 of the moving scroll disk 10a is provided with a groove 123. In the axial direction of the moving scroll disk 10a, the height of the groove 123 is h1, and the height of the scroll teeth 12 is h2, wherein 0.5h2≤h1. When the compression chamber is connected to the exhaust port 101, the exhaust flow area is small. At this time, the scroll teeth 12 of the stationary scroll disk 10b pass through the groove 123 of the moving scroll disk 10a. The groove 123 of the moving scroll disk 10a has a relatively high height, thereby ensuring that the flow area of ​​the groove 123 is large enough to ensure a large exhaust volume in the initial stage of exhaust and prevent over-compression.

[0047] like Figure 6 and Figure 7 As shown, in one embodiment, the scroll disk 10 is a stationary scroll disk 10b. The inner profile 121 of the scroll teeth 12 of the stationary scroll disk 10b is provided with a groove 123. In the axial direction of the stationary scroll disk 10b, the height of the groove 123 is h1, and the height of the scroll teeth 12 is h2, wherein 0.5h2≤h1. When the compression chamber is connected to the exhaust port 101, the exhaust flow area is small. At this time, the scroll teeth 12 of the moving scroll disk 10a pass through the groove 123 of the stationary scroll disk 10b. The groove 123 of the stationary scroll disk 10b has a relatively high height, thereby ensuring that the flow area of ​​the groove 123 is large enough to ensure a large exhaust volume in the initial stage of exhaust and prevent over-compression.

[0048] like Figures 1 to 7 As shown, the present invention also proposes a compression mechanism 100, including a moving scroll disk 10a and a stationary scroll disk 10b that mesh with each other, wherein at least one of the moving scroll disk 10a and the stationary scroll disk 10b is a scroll disk 10 as described above. The specific structure of the scroll disk 10 is as described in the above embodiments. Since the compression mechanism 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0049] Specifically, the compression mechanism 100 includes a moving scroll disk 10a and a stationary scroll disk 10b that mesh with each other. The moving scroll disk 10a and the stationary scroll disk 10b mesh with each other to form a compression chamber. The stationary scroll disk 10b is provided with an exhaust port 101. Both the moving scroll disk 10a and the stationary scroll disk 10b include a disk body 11 and scroll teeth 12 provided on one side of the disk body 11. The scroll teeth 12 have opposing inner profiles 121 and outer profiles 122. Among them, the inner profile 121 of the scroll teeth 12 of the moving scroll disk 10a and / or the stationary scroll disk 10b is provided with a radially recessed groove 123, which is located at the disengagement position adjacent to the exhaust port 101. When the compression chamber formed by the engagement of the moving scroll 10a and the stationary scroll 10b is connected to the exhaust port 101, the groove 123 is in the disengaged position of the moving scroll 10a and the stationary scroll 10b. In this way, the exhaust flow area can be increased when the moving scroll 10a and the stationary scroll 10b are disengaged, which can effectively prevent over-compression, especially improve over-compression under low pressure ratio conditions, thereby reducing the power consumption of the scroll compressor and achieving the effect of improving the performance of the scroll compressor.

[0050] The present invention also proposes a scroll compressor, including a compression mechanism 100. The specific structure of the compression mechanism 100 is as described in the above embodiments. Since this scroll compressor adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0051] This invention also proposes a refrigeration device, including a scroll compressor. The specific structure of the scroll compressor is as described in the above embodiments. Since this refrigeration device adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here. This refrigeration device includes, but is not limited to, air conditioners, refrigerators, freezers, and heat pumps.

[0052] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A scroll, for engaging with a mating scroll to form compression pockets, said scroll or said mating scroll being provided with a discharge hole, characterised in that, The scroll plate comprises: a plate body; and a scroll tooth provided on one side of the plate body, the scroll tooth having opposite inner and outer side lines, the inner side line being provided with a radially recessed groove, the groove being arranged at a disengagement position adjacent to the exhaust hole; when the compression chamber communicates with the exhaust hole, the groove is arranged corresponding to the tooth head of the scroll tooth of the counter-rotating scroll plate, so that the exhaust and the disengagement can be simultaneously advanced without changing the shape of the scroll tooth; the groove is arranged within a range of 60° from the tooth head of the scroll tooth towards the tooth tail of the scroll tooth on the inner side line; the center of the plate body is marked as point O, the width of the groove in the winding direction of the scroll tooth is the groove width, the projection positions of the two sides of the groove width direction on the plate body are marked as points E and F respectively, the line connecting the O point and the E point is marked as line OE, the line connecting the O point and the F point is marked as line OF, and the included angle between the line OE and the line OF is α, wherein α≥15°.

2. The scroll of claim 1 wherein, In the radial direction of the scroll plate, the depth of the groove is d1, wherein 0.1mm≤d1≤1mm.

3. The scroll of claim 2 wherein, 0.1mm≤d1≤0.3mm.

4. The scroll, as set forth in claim 1, wherein, In the axial direction of the scroll plate, the height of the groove is h1, and the height of the scroll tooth is h2, wherein 0.5h2≤h1.

5. The scroll set according to any one of claims 1 to 4, wherein The scroll plate is a moving scroll plate or a stationary scroll plate.

6. A compression mechanism characterized by, The scroll plate comprises:

7. A scroll compressor characterized by comprising: The scroll plate comprises:

8. 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