Design method and processing method of special-shaped exhaust hole of scroll compressor and scroll compressor

Abstract

The application relates to a design method and processing method of a scroll compressor special-shaped exhaust hole and a scroll compressor in the technical field of scroll compressors. The method establishes a coordinate system with the center O of the base circle of the static disc modified based on a double-arc scroll profile as the origin. The starting point position O1 coordinate is determined by the requirements that the intersection point B of the cutter surface profile of the cutter for the static disc modified based on a double arc is tangent to the double arc, and the tooth head circle arc of the dynamic disc at the beginning of exhaust is coincident; and the moving track of the cutter center is determined by the involute of the base circle of the static disc modified based on a double arc l B ; the end point position O2 of the cutter center is determined by the intersection of the straight line O1O2 and the moving track l B . The semi-special-shaped exhaust hole is obtained, the design precision is improved, the design period is shortened, and the technical problem that the existing special-shaped exhaust hole design method cannot meet the precision requirement of the special-shaped exhaust hole for the tooth profile modified based on a double arc is solved.

Description

Technical Field

[0001] This invention relates to the field of scroll compressor technology, and in particular to a method for designing irregularly shaped exhaust ports for a scroll compressor, a method for processing irregularly shaped exhaust ports on a stationary disc of a scroll compressor using the design method, a stationary disc of a scroll compressor using the processing method, a scroll compressor having the stationary disc, a computer system for implementing the design method, and a computer storage medium. Background Technology

[0002] As a high-efficiency, low-vibration positive displacement compressor, the core working component of a scroll compressor consists of a series of periodically changing compression chambers formed by the meshing of a moving and stationary disc. Gas reaches a predetermined pressure in the central compression chamber and is then discharged through the exhaust port. Therefore, the design of the exhaust port directly affects the compressor's discharge efficiency, airflow noise, and operational reliability. Traditional circular exhaust ports have inherent drawbacks. While circular ports are commonly used due to their simple structure and ease of manufacturing, this design results in a sudden increase in the opening area of ​​the exhaust port at the start of discharge and a sudden closure at the end, leading to significant airflow pulsation and inducing airflow noise. More importantly, under certain operating conditions, the pressure in the second compression chamber may exceed the discharge pressure in the central chamber before connecting to the exhaust port, causing "overcompression" and additional energy loss. To address these issues, existing technologies have proposed the concept of irregularly shaped exhaust ports. By designing the exhaust port as non-circular (such as cashew nut-shaped or irregularly shaped), the opening and closing process of the exhaust port can be controlled, making its area change smoother, thereby effectively reducing airflow pulsation and overcompression losses.

[0003] However, existing methods for designing irregularly shaped exhaust ports are based on establishing the origin using the center O of the base circle of the stationary disk after correction with a double-circular-arc vortex profile. x-y A rectangular coordinate system is used to design the starting position O1 of the tool center and the movement trajectory. l B The endpoint O2 yields an irregularly shaped exhaust port. However, the starting point O1 and the movement trajectory... l BThe design of the endpoint O2 is currently hampered by conceptual diagrams or qualitative descriptions based on experience. For example, some technologies merely state that the exhaust port is irregularly shaped to reduce airflow pulsation, but lack a precise, geometrically based, universal design methodology. This is especially true for the more complex double-circular-arc modified tooth profile, where the tooth tip profile is no longer a standard involute. The design of the irregularly shaped exhaust port must strictly adhere to its unique geometric constraints, ensuring a smooth connection with the tooth tip profile while preventing interference during the movement of the rotating disk. This lack of theoretical methodology leads to a heavy reliance on engineers' experience and repeated trial and error in the actual design process. Design accuracy is difficult to guarantee, the design cycle is long, and efficiency is low. Furthermore, the optimality of the irregularly shaped hole profile cannot be guaranteed in principle, limiting the full realization of its performance advantages. Summary of the Invention

[0004] To address the technical problem that existing methods for designing irregularly shaped exhaust holes cannot meet the precision requirements of double-circular-arc-corrected tooth profiles for irregularly shaped exhaust holes, this invention provides a method for designing irregularly shaped exhaust holes for a scroll compressor, a method for processing irregularly shaped exhaust holes on a scroll compressor stationary disc using the aforementioned design method, a stationary disc for a scroll compressor using the aforementioned processing method, a scroll compressor having the aforementioned stationary disc, a computer system for implementing the aforementioned design method, and a computer storage medium.

[0005] The first aspect of this invention provides a method for designing irregularly shaped exhaust ports for a scroll compressor, which establishes a design based on the center O of the base circle of the stationary disk after correction of the double-circular-arc scroll profile as the origin. x-y A rectangular coordinate system is used to design the starting position O1 of the tool center and the movement trajectory. l B At the endpoint O2, an irregularly shaped exhaust port is obtained;

[0006] O1 is designed as follows: the circular profile of the tool is tangent to the intersection point B of the double circular arcs, and coincides with the tooth tip arc of the moving disc at the start of venting. The coordinate of O1 at this time is ( x o1 , y o1 )for:

[0007] ;

[0008] In the formula, p The main spindle rotation radius; r Let be the radius of the tool's circular surface; g For correction angle;

[0009] l B The design is as follows: the envelope of the circular profile of the cutting tool and the motion trajectory of all points on the outer wall of the moving disk. l A Tangent, at this timel B The equation is:

[0010] ;

[0011] In the formula, a The radius of the base circle of the stationary disk; α The initial angle of the involute of the base circle of the stationary disk; f The phase angle at the starting end of the inner profile of the vortex tooth;

[0012] O2 is designed such that the O2 coordinate cannot exceed the outer wall of the moving disk. At this time, the straight line O1O2 and the movement trajectory are... l B The intersection of these points is the coordinate of O2.

[0013] As a further improvement to the above scheme, l A The equation is:

[0014] .

[0015] As a further improvement to the above scheme, the linear equation of O1O2 is:

[0016] .

[0017] As a further improvement to the above solution, the design method for irregularly shaped exhaust ports of scroll compressors includes the following steps:

[0018] By designing the starting position O1 of the tool center and the movement trajectory l B The endpoint O2 yields a semi-irregular exhaust port;

[0019] Along the line of symmetry l k The mirror image is obtained as the mirror point O1' of O1;

[0020] After splicing the semi-irregular vent hole with its mirror image, translate it until the circular contour of the tool corresponding to O1' is tangent to the stationary disk tooth head to obtain the irregular vent hole.

[0021] Furthermore, the line of symmetry l k The design method includes: drawing a line through O2 with a radius of [missing information - likely a distance from the center O of the base circle of the stationary disk]. p A straight line tangent to a circle, wherein the straight line is a line of symmetry. l k .

[0022] A second aspect of the present invention provides a method for processing irregularly shaped exhaust holes on the stationary disc of a scroll compressor, comprising:

[0023] Based on the above-mentioned design method for irregular exhaust holes of scroll compressors, a geometric parameter map for machining irregular holes is generated; according to the geometric parameter map, a CNC machining path is generated; and the irregular exhaust hole is obtained by machining the stationary plate using CNC machining equipment.

[0024] Furthermore, the CNC machining equipment is a five-axis linkage laser processing equipment; it processes irregular holes with a pulse frequency of 10–50kHz and an energy density of 2–8J / cm²; during the processing, the hole wall temperature is monitored in real time, and the cooling gas flow rate is dynamically adjusted to control the heat-affected zone to be less than 50μm.

[0025] A third aspect of the present invention provides a stationary disc of a scroll compressor, wherein the exhaust holes on the stationary disc are processed using the aforementioned method for processing irregular exhaust holes in the stationary disc of a scroll compressor.

[0026] A fourth aspect of the present invention provides a scroll compressor, wherein the scroll compressor employs the aforementioned stationary disc.

[0027] The fifth aspect of the present invention provides a computer system including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the above-described method for designing irregular exhaust ports for a scroll compressor.

[0028] The sixth aspect of the present invention provides a computer-readable storage medium having a computer program / instructions stored thereon, which, when executed by a processor, implements the steps of the above-described method for designing irregular exhaust ports for a scroll compressor.

[0029] Compared with existing technology (based on the base circle center O of the static disk after correction of the double circular arc vortex profile), the origin is established... x-y A rectangular coordinate system is used to design the starting position O1 of the tool center and the movement trajectory. l B Compared with the method of obtaining an irregularly shaped exhaust hole at the endpoint O2, the present invention has the following beneficial effects:

[0030] 1. This invention determines the starting position O1 coordinate by requiring that the circular contour of the tool on the stationary disk after double-circle correction be tangent to the intersection point B of the double-circle arcs and coincide with the tooth tip arc of the moving disk at the start of venting; and determines the movement trajectory of the tool center by the involute of the base circle of the stationary disk after double-circle correction. l B ; through the straight line O1O2 and the movement trajectory l B The intersection point determines the endpoint position O2 of the tool center. This allows for the creation of a precisely shaped vent hole that meets the requirements, thus avoiding the repeated trial and error of existing methods, improving design accuracy, shortening the design cycle, and solving the technical problem that existing vent hole design methods struggle to meet the accuracy requirements of double-circular-arc corrected tooth profiles for vent holes.

[0031] 2. Mirror the axis of symmetry of the semi-irregular hole, and then design the overall movement position of the vent after symmetry, through the line of symmetry. l k The condition of the circular contour of the tool corresponding to the mirror point O1' being tangent to the tooth tip of the stationary disk is finally met, thus obtaining the irregular vent hole, thereby improving the venting performance of the vent hole while avoiding damage to the stationary disk structure. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the double-circular-volume profile correction for a stationary disk.

[0033] Figure 2 A schematic diagram of the path for creating a semi-irregular hole.

[0034] Figure 3 A schematic diagram of the path for creating irregularly shaped holes.

[0035] Figure 4 This is a schematic diagram showing the state after the irregular hole has been opened. Detailed Implementation

[0036] 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 some embodiments of the present invention, and not all embodiments. 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.

[0037] This invention provides a scroll compressor characterized by a stationary disc with an irregularly shaped exhaust port designed using a scroll compressor irregularly shaped exhaust port design method. This design method further refines the irregularly shaped exhaust port design method based on a semi-irregularly shaped exhaust port design method for scroll compressors. It involves first designing a semi-irregularly shaped exhaust port that meets the requirements, then mirroring and translating the semi-irregularly shaped exhaust port to ultimately obtain a complete, reliable, and high-precision irregularly shaped exhaust port. This semi-irregularly shaped exhaust port design method can also be programmed into a computer program / instruction and embedded in a computer system, computer-readable storage medium, or computer program product, thus becoming an intelligent irregularly shaped exhaust port design tool. Simultaneously, the irregularly shaped exhaust port designed using this method can guide the machining operation of the scroll compressor stationary disc. This invention satisfies the precision requirements of double-circular-arc corrected tooth profiles for irregularly shaped exhaust ports, thereby solving the technical problem that existing irregularly shaped exhaust port design methods struggle to meet these precision requirements.

[0038] First, the stationary disc of the scroll compressor with double circular arc modified tooth profile is introduced:

[0039] The scroll compressor's stationary disc has exhaust ports. To improve the existing stationary disc's functionality, a double-arc design was used to modify its profile. For example... Figure 1 As shown, the correction process is as follows:

[0040] The double-circular-arc vortex profile correction involves replacing the involute curves on both the inner and outer sides of the starting end of the tooth profile of the stationary disc with corrected large and small circular arcs, respectively, to ensure the profile continuity and guideability in the meshing region. In the diagram, the red line represents the corrected large circular arc, and the blue line represents the corrected small circular arc. As can be seen in the diagram, the centers of the corrected large and small circular arcs are points E and F, respectively, and their radii are R. d and R x A coordinate system is established with the center point O of the base circle as the reference, and the phase angles corresponding to the starting ends of the inner and outer profiles of the vortex tooth are defined as follows: and +π The corrected large circular arc is tangent to the inner profile at point A, and the corrected small circular arc is tangent to the outer profile at point C. Tangent lines are drawn to the base circle through points A and C, respectively, and are tangent at points D and G on the base circle. Connect points A and C, and with point O as the center, make OB = R. or / 2, intersecting line AC at point B, R or Let OB be the radius of the base circle. Extend OB to intersect AD and CG at points E and F, respectively. Draw circles with centers at E and F, and radii at EB and FB, respectively. Then, arcs AB and BC are the corrected major and minor arcs, respectively.

[0041] Secondly, this invention designs irregularly shaped exhaust holes for the stationary disk after modification of the double-circular-arc vortex profile. Based on the characteristics of exhaust hole opening: the exhaust hole should be tangent to at least one exhaust engagement point; exhaust holes without clearance are completely covered by the passive vortex teeth at the end (or beginning) of exhaust; exhaust holes with clearance are never completely covered by the passive vortex teeth. After the exhaust hole is opened, the moving and stationary vortex teeth within the exhaust chamber can no longer mesh with each other. The exhaust hole is opened on the stationary vortex base and must not interfere with the vortex teeth on the stationary vortex disk, otherwise gas leakage will occur. Furthermore, the principle of exhaust hole opening is that the exhaust hole can only connect to the central exhaust chamber at any time and cannot connect to other compression chambers. To reduce flow losses at the exhaust hole and ensure stable airflow during exhaust, the maximum exhaust hole area and effective flow area change rate should be pursued as much as possible. Considering machining processability and mass production feasibility, the designed exhaust hole size must ensure that it can be machined with common cutting tools to achieve mass production. Theoretically, the exhaust port of a scroll compressor employing a double-circular-arc modified tooth profile can be opened into various shapes, but regardless of the shape, it must adhere to the aforementioned opening characteristics and principles. Taking these factors into account, it can be found that any shape of exhaust port must be tangent to the intersection of the connecting arc and the modified arc at the end of the stationary disc tooth to meet the usage requirements.

[0042] The design must be based on the above characteristics and principles. The design method is as follows:

[0043] A coordinate system is established with the center O of the base circle of the stationary disk after correction of the double-circle vortex profile as the origin. The starting position O1 of the tool center and the movement trajectory are designed. l B The endpoint O2 yields a semi-irregular exhaust port:

[0044] Design starting position O1: The circular contour of the tool is tangent to the intersection point B of the double circular arcs, and coincides with the tooth tip arc of the moving disc at the start of venting. The coordinates of the starting position O1 at this time are:

[0045] .

[0046] in, p The main spindle rotation radius; r Let be the radius of the tool's circular surface; g The correction angle is O1; the coordinates of O1 are ( x o1 , y o1 ).

[0047] When designing the starting position O1, the following conditions must be met: the circular profile of the tool is tangent to the intersection point B of the double arcs, and coincides with the arc of the moving disc's tooth tip at the start of venting. In other words, the vent hole should be tangent to at least one venting engagement point (e.g., Figure 1 As shown, any shape of vent hole must be tangent to the intersection point B of the connecting arc and the correction arc of the stationary disc tooth end to meet the usage requirements.

[0048] Design movement trajectory l B When drilling, the circular profile of the cutting tool must be the envelope of the motion trajectory of all points on the outer wall of the moving disc. l A Tangent; however, the radius r of the tool's circular surface is fixed, so the envelope is designed first. l A Then based on the envelope l A The radius r of the tool's circular surface is used to design the movement trajectory. l B .

[0049] like Figure 2 As shown, the curve l M This represents the position of the outer involute of the moving disk when the center of the base circle of the moving disk is located in the first quadrant. Based on the properties of the involute curves of the moving and stationary disks in a scroll compressor, the distance between the outer involute curve of the moving disk and the inner involute curve of the stationary disk during scroll compressor engagement is 2. p .existFigure 2 It can be seen from this that... l N It is a curve l M Shift downwards parallel to the x-axis p A curve obtained from the distance. Similarly, the envelope. l A It is on the curve l N Inside and at a distance p An equidistant curve. Therefore, the envelope line l A It is also an involute that occurs on the base circle of the stationary disk. Therefore, the envelope... l A The equation is:

[0050] .

[0051] in, ; a The radius of the base circle of the stationary disk; p The main spindle rotation radius; f The phase angle at the starting end of the inner profile of the vortex tooth; α The initial angle of the involute of the base circle of the stationary disk;

[0052] movement trajectory l B It is the envelope. l A The equidistant lines, therefore the trajectory l B It is also an involute that occurs on the base circle of the stationary disk, and the trajectory at this time l B The equation is:

[0053] .

[0054] in, Thus, the starting position O1 of the tool center and the movement trajectory are obtained. l B .

[0055] Finally, the design of the endpoint position O2 is as follows: Based on the requirement that the coordinates of the endpoint position O2 must never exceed the outer wall of the moving disk (the exhaust hole can only be connected to the central exhaust chamber at any time and cannot be connected to other compression chambers), the requirement that the size of the exhaust hole must be able to be machined by common tools (machinability and mass production feasibility), and the requirement that the area of ​​the exhaust hole be as large as possible (in order to reduce flow loss at the exhaust hole and ensure stable airflow during exhaust), the tool circle at the endpoint position O2 of the tool can only be tangent to the envelope of the motion trajectory of all points on the outer involute of the moving disk.

[0056] The position of this envelope is as follows: Figure 2 The envelope shown l A This indicates that the tool circle centered at the endpoint O2 intersects the envelope. l A Since they are internally tangent, the endpoint O2 must lie within the envelope. l A The trajectory is a equidistant curve located inside the curve at a distance of r. l B Therefore, the endpoint position O2 of the tool can be determined by the straight line O1O2 and the movement trajectory. l B The equations are solved by solving the intersection points of the equations simultaneously.

[0057] This invention concludes that: at this time, the straight line O1O2 and the moving trajectory l B The intersection point O3 is the coordinate of the endpoint position O2.

[0058] The equation of line O1O2 is:

[0059] .

[0060] Based on the linear equation and trajectory of line O1O2 l B By solving the equations simultaneously and calculating the coordinates of the intersection point, the coordinates of the endpoint O2 can be determined.

[0061] Therefore, knowing the starting position O1 of the tool and its movement trajectory l B After reaching the endpoint O2, as long as the tool moves from the starting point O1 according to the trajectory... l B Once the end point O2 is moved, a semi-irregular exhaust hole can be processed.

[0062] After obtaining the semi-circular vent hole, the design of the vent hole is complete. To improve its functionality, the vent hole can be mirrored to increase the venting area. However, if mirrored directly, the cutting tool will cut off the head of the stationary disk's helical teeth during machining, thus damaging the stationary disk structure. Therefore, when designing the complete irregular vent hole, it is necessary to adjust its position on the stationary disk to increase the venting area while avoiding damage to the stationary disk structure. Therefore, the design method for the irregular vent hole is as follows: Figure 3 As shown, firstly, the axis of symmetry for mirroring the semi-irregular hole is designed, then the overall position of the exhaust hole after symmetry is designed, and finally the irregular exhaust hole is obtained.

[0063] Determine the axis of symmetry: After knowing the endpoint position O2, the line of symmetry... lk The design method is as follows: Draw a line through the endpoint O2, intersecting the base circle with a radius of O, which is a distance from the center O of the stationary disk. p A straight line tangent to a circle is a line of symmetry. l k .

[0064] Determine the moving position: Move the starting point O1 of the semi-irregular exhaust hole along the line of symmetry. l k Symmetry is achieved because the stationary disc tooth head is corrected using a double circular arc. At this point, the mirror image point O1' and its tool's circular contour are not tangent to the stationary disc tooth head. If the irregular hole is machined symmetrically, interference will occur, and the tool will cut off a portion of the stationary disc tooth head. Therefore, the circle centered on the mirror image point O1' and tangent to the moving disc (defined as the O1' circle) is shifted to the right, making the O1' circle tangent to the stationary disc tooth head, resulting in the O3 circle centered at the intersection point O3. The tool center moves along the stationary disc tooth head from the starting position O1 to the ending position O2 and then to the intersection point O3. When the tool's endpoint is at the intersection point O3, the irregular vent hole is the required irregular vent hole. The shifting position is designed as follows: the semi-irregular vent hole is moved along the symmetry line... l k Mirror the image to obtain the mirror point O1' of the starting position O1; after splicing the original semi-irregular vent hole with the mirrored semi-irregular vent hole, translate it until the circular contour of the tool corresponding to the mirror point O1' is tangent to the stationary disk tooth head to obtain the irregular vent hole. At this time, the position of the mirror point O1' is the intersection point O3, which is the end point O2.

[0065] Thus, as Figure 4 As shown, the final irregular-shaped exhaust port is obtained, completing the design of the irregular-shaped exhaust port.

[0066] After obtaining the design method for irregularly shaped exhaust holes, they can be processed:

[0067] Based on the above-described design method for irregularly shaped exhaust holes in scroll compressors, a geometric parameter map for machining the irregular holes is generated. According to the geometric parameter map, a CNC machining path is generated. The irregularly shaped exhaust holes are then obtained by machining the stationary disk using CNC machining equipment. The CNC machining equipment can be a five-axis linkage laser machining machine; the irregular holes are machined with a pulse frequency of 10–50 kHz and an energy density of 2–8 J / cm². During the machining process, the hole wall temperature is monitored in real time, and the cooling gas flow rate is dynamically adjusted to control the heat-affected zone to be less than 50 μm.

[0068] In summary, this invention determines the starting position O1 coordinate by requiring that the circular contour of the tool on the stationary disk after double-circle correction be tangent to the intersection point B of the double-circle arcs and coincide with the tooth tip arc of the moving disk at the start of venting; and determines the movement trajectory of the tool center by the involute of the base circle of the stationary disk after double-circle correction. lB ; through the straight line O1O2 and the movement trajectory l B The intersection point determines the endpoint position O2 of the tool center. This yields a semi-irregular vent hole that meets the requirements, thus providing a precise calculation process. This avoids the repeated trial and error of existing methods, improving design accuracy and shortening the design cycle. It also solves the technical problem that existing irregular vent hole design methods struggle to meet the accuracy requirements of double-circular-arc corrected tooth profiles for irregular vent holes. To improve the venting performance of the vent hole, the axis of symmetry of the semi-irregular hole is mirrored, and then the overall movement position of the vent hole after symmetry is designed, using the line of symmetry... l k The condition that the circular contour of the tool corresponding to the mirror point O1' is tangent to the tooth tip of the stationary disk is finally met, thus obtaining the irregular vent hole.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method for designing irregularly shaped exhaust ports for a scroll compressor, which establishes a system based on the center O of the base circle of the stationary disk after correction of the double-circular-arc scroll profile as the origin. xy A rectangular coordinate system is used to design the starting position O1 of the tool center and the movement trajectory. l B The endpoint O2 yields an irregularly shaped exhaust port; characterized in that, O1 is designed as follows: the circular profile of the tool is tangent to the intersection point B of the double circular arcs, and coincides with the circular arc of the moving disc's tooth tip at the start of venting. The coordinate of O1 at this time is ( x o1 , y o1 )for: ； In the formula, ρ The main spindle rotation radius; r Let be the radius of the tool's circular surface; γ For correction angle; l B The design is as follows: the envelope of the circular profile of the cutting tool and the motion trajectory of all points on the outer wall of the moving disk. l A Tangent, at this time l A , l B The equation is: ； ； In the formula, a The radius of the base circle of the stationary disk; α The initial angle of the involute of the base circle of the stationary disk; φ The phase angle at the starting end of the inner profile of the vortex tooth; The design of O2 is as follows: the O2 coordinate cannot exceed the outer wall of the moving disk. At this time, O1O2 and... l B The intersection of these points is the coordinate of O2.

2. The method for designing irregularly shaped exhaust ports for a scroll compressor according to claim 1, characterized in that, The equation of the straight line O1O2 is: 。 3. The method for designing irregularly shaped exhaust ports for a scroll compressor according to claim 1, characterized in that, The design method for irregularly shaped exhaust ports of scroll compressors includes the following steps: Starting from position O1, follow the movement trajectory l B Move to the endpoint position O2 to obtain a semi-irregular exhaust port; Along the line of symmetry l k The mirror image is obtained as the mirror point O1' of O1; After splicing the semi-irregular vent hole with its mirror image, translate it until the circular contour of the tool corresponding to O1' is tangent to the stationary disk tooth head to obtain the irregular vent hole.

4. The method for designing irregularly shaped exhaust ports for a scroll compressor according to claim 3, characterized in that, Line of symmetry l k The design method includes: drawing a line through O2 with a radius of [missing information - likely a distance from the center O of the base circle of the stationary disk]. ρ A straight line tangent to the circle, and serving as a line of symmetry. l k .

5. A method for processing irregularly shaped exhaust holes on the stationary disc of a scroll compressor, characterized in that, include: The method for designing irregular exhaust ports of a scroll compressor according to any one of claims 1 to 4 generates a geometric parameter map for the machining of irregular ports; Based on the geometric parameter map, a CNC machining path is generated; the stationary disk is machined using CNC machining equipment to obtain irregularly shaped exhaust holes.

6. The method for processing the irregularly shaped exhaust hole of the scroll compressor stationary disc according to claim 5, characterized in that, The CNC machining equipment is a five-axis linkage laser processing equipment; Irregular holes are machined with pulse frequencies of 10–50 kHz and energy densities of 2–8 J / cm². The hole wall temperature is monitored in real time during the machining process, and the cooling gas flow rate is dynamically adjusted to control the heat-affected zone to be less than 50 μm.

7. A stationary disc of a scroll compressor, characterized in that, The exhaust holes on the stationary plate are processed using the machining method for irregular exhaust holes on the stationary plate of the scroll compressor as described in claim 5 or 6.

8. A scroll compressor, characterized in that, The scroll compressor uses the stationary disc as described in claim 7.

9. A computer system comprising a memory, a processor, and a computer program stored in the memory, characterized in that, The processor executes the computer program to implement the steps of the scroll compressor irregular exhaust port design method according to any one of claims 1 to 4.

10. A computer-readable storage medium having a computer program / instructions stored thereon, characterized in that, When the computer program / instruction is executed by the processor, it implements the steps of the scroll compressor irregular exhaust port design method according to any one of claims 1 to 4.

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