Parameterization design method, device and equipment for connector flow channel

Abstract

The invention discloses a parametric design method, device and equipment for a connector runner, relates to the technical field of SOC (State of Charge) stacks of high-temperature solid oxide batteries, and aims to solve the problems of low modeling and simulation efficiency and poor runner performance of an existing connector runner design scheme. The method comprises the following steps: splitting a to-be-designed connector arch-shaped runner into a plurality of sections of runner curves; aiming at any section of runner curve, defining a parameter equation corresponding to the any section of runner curve; and optimizing the characteristic parameters corresponding to the parameter equation to obtain an optimized flow channel curve corresponding to any section of flow channel curve so as to improve the modeling simulation efficiency and the flow channel performance of the connector flow channel.

Description

Technical Field

[0001] The present application relates to the technical field of high-temperature solid oxide cell (SOC) stacks, and provides a parametric design method, device and equipment for a connector flow channel. Background Art

[0002] As is well known, the metal connector designs of high-temperature solid oxide cell (SOC) stacks are diverse. For example, Figure 1 as shown, it is a common "cross-shaped flow channel" connector. There are rectangular main gas flow channels for fuel gas on the left and right sides of this connector. These flow channels are connected to the fuel gas inlet and fuel gas outlet on the heat box of the stack. When the stack operates, the fuel gas first enters the main gas flow channel on the right, then enters each reaction area flow channel, and after electrochemical reaction, it flows out of the reaction area flow channel on the left and converges into the main gas flow channel on the left, and finally flows out of the stack. Air enters the reaction area of the stack from the rear and flows out from the front. The flow of fuel gas and air is in a cross shape.

[0003] According to existing research, the geometric shape of the connector flow channel has an important impact on the performance of the fuel cell. Among them, the flow channel shape specifically includes shapes such as rectangle, circle, trapezoid, and bow. However, the existing connector flow channel design schemes have problems of low modeling and simulation efficiency and poor flow channel performance. Summary of the Invention

[0004] The present application provides a parametric design method, device and equipment for a connector flow channel, which are used to solve the problems of low modeling and simulation efficiency and poor flow channel performance existing in the existing connector flow channel design schemes.

[0005] On the one hand, a parametric design method for a connector flow channel is provided. The method includes:

[0006] Splitting the to-be-designed bow-shaped flow channel of the connector into multiple segments of flow channel curves;

[0007] For any segment of the flow channel curve, defining a parametric equation corresponding to the any segment of the flow channel curve;

[0008] Optimizing the characteristic parameters corresponding to the parametric equation to obtain an optimized flow channel curve corresponding to the any segment of the flow channel curve.

[0009] Optionally, the step of splitting the to-be-designed bow-shaped flow channel of the connector into multiple segments of flow channel curves includes:

[0010] According to the curvature of the to-be-designed bow-shaped flow channel of the connector, splitting the to-be-designed single-sided bow-shaped flow channel of the connector into 5 segments of flow channel curves; among them, the 5 segments of flow channel curves sequentially include line segment 1, circular arc, line segment 2, elliptical arc, and line segment 3.

[0011] Optionally, the step of defining the parametric equation corresponding to any section of the flow channel curve includes:

[0012] If any section of the flow channel curve is the line segment 1, the parametric equation is represented by the following formula (1):

[0013] 0 ≤ θ ≤ t

[0014] x 1 = θ

[0015] y 1 = 0 (1)

[0016] where θ is the independent variable of the line segment 1; t is the length of the line segment 1; x 1 , y 1 are the abscissa and ordinate of the line segment 1, respectively.

[0017] Optionally, the step of defining the parametric equation corresponding to any section of the flow channel curve includes:

[0018] If any section of the flow channel curve is the arc, the parametric equation is represented by the following formula (2):

[0019]

[0020] where θ is the independent variable of the arc; is the central angle of the arc; x 2 , y 2 are the abscissa and ordinate of the arc, respectively; ρ is the radius of the arc.

[0021] Optionally, the step of defining the parametric equation corresponding to any section of the flow channel curve includes:

[0022] If any section of the flow channel curve is the line segment 2, the parametric equation is represented by the following formula (3):

[0023] 0 ≤ θ ≤ s

[0024]

[0025]

[0026] where θ is the independent variable of the line segment 2; s is the length of the line segment 2; x 3 , y 3 are the abscissa and ordinate of the line segment 2, respectively; un is the inclination angle of the line segment 2.

[0027] Optionally, the step of defining the parametric equation corresponding to any section of the flow channel curve includes:

[0028] If any section of the flow channel curve is the elliptical arc, the parametric equation is expressed by the following formula (4):

[0029] θ 1 ≤ θ ≤ θ 2

[0030] x 4 =(e x - e b · sin(θ)) · cos(μ) - (e y - e a · cos(θ)) · sin(μ)

[0031] y 4 =(e y - e a · cos(θ)) · cos(μ) + (e x - eb · sin(θ)) · sin(μ) (4)

[0032] where θ is the independent variable of the elliptical arc; θ 1 and θ 2 are the starting angle and the ending angle of the elliptical arc respectively; e x and e y are the x - axis coordinate and the y - axis coordinate of the center of the elliptical arc respectively; e a and e b are the major - axis length and the minor - axis length of the elliptical arc respectively; x 4 and y 4 are the abscissa and the ordinate of the elliptical arc respectively; μ is the deflection angle between the major axis of the elliptical arc and the y - axis.

[0033] Optionally, it is characterized in that the step of defining the parametric equation corresponding to any section of the flow channel curve includes:

[0034] If any section of the flow channel curve is the line segment 3, the parametric equation is expressed by the following formula (5):

[0035] 0 ≤ θ ≤ d

[0036]

[0037] y 5 = - hc (5)

[0038] where θ is the independent variable of the line segment 3; d is the length of the line segment 3; bc is the single - flow - channel width of the line segment 3; hc is the flow - channel height of the line segment 3; x 5, y 5 are respectively the abscissa and ordinate of the line segment 3.

[0039] Optionally, the step of optimizing the characteristic parameters corresponding to the parametric equation to obtain the optimized flow channel curve corresponding to any section of the flow channel curve includes:

[0040] Generating a plurality of point clouds corresponding to any section of the flow channel curve according to different given characteristic parameter values;

[0041] Obtaining a plurality of flow channel curves corresponding to any section of the flow channel curve according to the plurality of point clouds;

[0042] Determining the flow channel curve with the best performance among the plurality of flow channel curves as the optimized flow channel curve corresponding to any section of the flow channel curve.

[0043] On the one hand, a parametric design device for a connector flow channel is provided, and the device includes:

[0044] A flow channel splitting unit for splitting the connector bow-shaped flow channel to be designed into multiple sections of flow channel curves;

[0045] A parametric equation defining unit for defining a parametric equation corresponding to any section of the flow channel curve for any section of the flow channel curve;

[0046] A parameter optimization unit for optimizing the characteristic parameters corresponding to the parametric equation to obtain the optimized flow channel curve corresponding to any section of the flow channel curve.

[0047] On the one hand, an electronic device is provided, including a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, any of the above methods is implemented.

[0048] On the one hand, a storage medium is provided, on which computer program instructions are stored, and when the computer program instructions are executed by a processor, any of the above methods is implemented.

[0049] Compared with the prior art, the beneficial effects of this application are:

[0050] In this application, when performing parametric design of the connector flow channel, first, the connector bow-shaped flow channel to be designed can be split into multiple sections of flow channel curves; then, for any section of the flow channel curve, a parametric equation corresponding to any section of the flow channel curve can be defined; finally, the characteristic parameters in the parametric equation can be optimized to obtain the optimized flow channel curve corresponding to any section of the flow channel curve.

[0051] Therefore, in this application, since corresponding parametric equations are defined for each segmented flow channel curve, and the characteristic parameters in the parametric equations are optimized to obtain the optimized flow channel curves corresponding to each segmented flow channel curve, compared with the existing connector flow channel design solutions, this application can, through the study of linear parameters, more clearly understand what parameters (or what kind of flow channel linear shape) have a significant impact on the performance of the stack, thereby greatly improving the flow channel performance of the designed connector flow channel. In addition, such parametric design also greatly shortens the time required for design, modeling, and simulation. At the same time, it is also more conducive to subsequent optimization using methods such as sensitivity analysis and DOE experimental design. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only the embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0053] Figure 1 is a common cross-shaped flow channel connector;

[0054] Figure 2 is an electronic device provided by an embodiment of this application;

[0055] Figure 3 is a schematic diagram of a parametric design method for a connector flow channel provided by an embodiment of this application;

[0056] Figure 4 is a schematic diagram of a connector cross-section provided by an embodiment of this application;

[0057] Figure 5 is a schematic diagram of a split bow-shaped flow channel provided by an embodiment of this application;

[0058] Figure 6 is a schematic diagram of a flow channel cross-section linear shape provided by an embodiment of this application;

[0059] Figure 7 is a schematic diagram of a parametric design device for a connector flow channel provided by an embodiment of this application.

[0060] Reference numerals in the figures: 20 - Parametric design device for connector flow channel, 201 - Processor, 202 - Memory, 203 - I / O interface, 204 - Database, 70 - Parametric design device for connector flow channel, 701 - Flow channel splitting unit, 702 - Parametric equation definition unit, 703 - Parameter optimization unit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0061] To make the objectives, technical solutions, and advantages of this application clearer and more understandable, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without making creative efforts fall within the scope of protection of this application. Without conflict, the embodiments in this application and the features in the embodiments can be arbitrarily combined with each other. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0062] Glossary:

[0063] The high-temperature solid oxide cell SOC is the general term for high-temperature solid oxide fuel cells (SOFC) and high-temperature solid oxide electrolysis cells (SOEC). Generally, the SOC stack is composed of multiple identical single-cell units stacked together. Among them, each single-cell unit is composed of a single-cell sheet, a metal interconnect, and a sealing material. The single-cell sheet is composed of an anode, a cathode, and an electrolyte; the metal interconnect is another core component of the SOC stack. Through this metal interconnect, the anode and cathode of adjacent battery monomers can be connected, thus playing the role of conducting electricity and heat. In addition, the metal interconnect can also separate the hydrogen, water vapor on both sides of the battery unit from the air and oxygen. The single-cell units are connected through a sealing assembly.

[0064] As is well known, the metal interconnect designs of high-temperature solid oxide cell (SOC) stacks are diverse. For example, Figure 1 as shown, it is a common "cross-shaped flow channel" interconnect. There are rectangular main gas flow channels for fuel gas flow on the left and right sides of this interconnect. These flow channels are connected to the fuel gas inlet and fuel gas outlet on the hot box of the stack. During the operation of the stack, the fuel gas first enters the main gas flow channel on the right, then enters each reaction area flow channel. After the electrochemical reaction, it flows out of the reaction area flow channel on the left and converges into the main gas flow channel on the left, and finally flows out of the stack. Air enters the reaction area of the stack from the rear and flows out from the front. The flow of fuel gas and air is in a cross shape.

[0065] And according to existing research, it is known that the geometric shape of the interconnect flow channel has an important impact on the performance of the fuel cell. Among them, the flow channel shapes specifically include shapes such as rectangles, circles, trapezoids, and bows. However, the existing interconnect flow channel design schemes have problems of low modeling and simulation efficiency and poor flow channel performance.

[0066] Based on this, the embodiments of the present application provide a parametric design method for a connector flow channel. In this method, first, the connector arcuate flow channel to be designed can be split into multiple segments of flow channel curves; then, for any segment of the flow channel curve, a corresponding parametric equation can be defined; finally, the characteristic parameters in the parametric equation can be optimized to obtain the optimized flow channel curve corresponding to any segment of the flow channel curve. Therefore, in the present application, since corresponding parametric equations are defined for each split segment of the flow channel curve, and the optimized flow channel curves corresponding to each segment of the flow channel curve are obtained by optimizing the characteristic parameters in the parametric equation, compared with the existing connector flow channel design scheme, the present application can, through the study of linear parameters, more clearly understand what parameters (or what kind of flow channel line shape) have a significant impact on the performance of the fuel cell stack, thereby greatly improving the flow channel performance of the designed connector flow channel. In addition, such parametric design also greatly shortens the time required for design, modeling, and simulation. At the same time, it is also more conducive to the subsequent optimization using methods such as sensitivity analysis and DOE experimental design.

[0067] After introducing the design concept of the embodiments of the present application, the following briefly introduces the application scenarios applicable to the technical solutions of the embodiments of the present application. It should be noted that the following introduced application scenarios are only used to illustrate the embodiments of the present application rather than to limit them. In the specific implementation process, the technical solutions provided by the embodiments of the present application can be flexibly applied according to actual needs.

[0068] As Figure 2 shown, an electronic device provided by an embodiment of the present application is a parametric design device 20 for a connector flow channel.

[0069] Among them, the parametric design device 20 of the connector runner can be used for parametric design of the connector arch runner. For example, it can be a personal computer (PC), a server, a laptop, etc. The parametric design device 20 of the connector runner may include one or more processors 201, a memory 202, an I / O interface 203, and a database 204. Specifically, the processor 201 can be a central processing unit (CPU), or a digital processing unit, etc. The memory 202 can be a volatile memory, such as a random-access memory (RAM); the memory 202 can also be a non-volatile memory, such as a read-only memory, a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); or the memory 202 is any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 202 can be a combination of the above memories. Part of the program instructions of the parametric design method of the connector runner provided in the embodiments of the present application can be stored in the memory 202. When these program instructions are executed by the processor 201, they can be used to implement the steps of the parametric design method of the connector runner provided in the embodiments of the present application, so as to solve the problems of low modeling and simulation efficiency and poor runner performance existing in the existing connector runner design scheme. The database 204 can be used to store data such as parametric equations, optimized runner curves, curvatures, and characteristic parameters involved in the solutions provided in the embodiments of the present application.

[0070] In the embodiments of the present application, the parametric design device 20 of the connector runner can obtain the characteristic parameters corresponding to each parametric equation through the I / O interface 203. Then, the processor 201 of the parametric design device 20 of the connector runner will improve the modeling and simulation efficiency and the runner performance according to the program instructions of the parametric design method of the connector runner provided in the embodiments of the present application in the memory 202. In addition, data such as parametric equations, optimized runner curves, curvatures, and characteristic parameters can be stored in the database 204.

[0071] Of course, the method provided in the embodiments of the present application is not limited to Figure 2 the application scenarios shown, and can also be used in other possible application scenarios, which are not limited in the embodiments of the present application. For Figure 2The functions that can be achieved by each device in the application scenario shown will be described together in the subsequent method embodiments, and will not be elaborated here for the time being. Next, the method of the embodiments of the present application will be introduced with reference to the accompanying drawings.

[0072] As Figure 3 shown, it is a schematic diagram of a parametric design method for a connector flow channel provided by an embodiment of the present application. This method can be executed by the parametric design device 20 for the connector flow channel in Figure 2 . Specifically, the process of this method is introduced as follows.

[0073] Step 301: Split the connector arch-shaped flow channel to be designed into multiple segments of flow channel curves.

[0074] In practical applications, as Figure 4 shown, it is a schematic diagram of a connector cross-section provided by an embodiment of the present application. Among them, a connector has multiple flow channel repeating units, and all flow channels have the same shape and a symmetric structure. Therefore, in the embodiments of the present application, when defining the parametric equation of the flow channel, only half of a single flow channel needs to be defined. Then, by performing mirror symmetry and array operations on the half-flow channel line shape, the line shape of the entire flow channel can be obtained.

[0075] Based on this, in the embodiments of the present application, when splitting the connector arch-shaped flow channel to be designed into multiple segments of flow channel curves, specifically, according to the curvature of the connector arch-shaped flow channel to be designed, the unilateral connector arch-shaped flow channel to be designed can be split into 5 segments of flow channel curves; among them, the 5 segments of flow channel curves sequentially include line segment 1, circular arc, line segment 2, elliptical arc, and line segment 3. As Figure 5 shown, it is a schematic diagram of splitting the arch-shaped flow channel provided by an embodiment of the present application. Among them, the unilateral connector arch-shaped flow channel is composed of 5 curves, and AB is line segment 1, BC is a circular arc, CD is line segment 2, DE is an elliptical arc, and EF is line segment 3. In addition, Figure 5 also marks various curve parameters in addition to marking the above-mentioned unilateral connector arch-shaped flow channel curves.

[0076] Step 302: Define the parametric equation corresponding to any segment of the flow channel curve for any segment of the flow channel curve.

[0077] In the embodiments of the present application, if any segment of the flow channel curve is line segment 1, that is, Figure 5 line segment AB in

[0078] 0≤θ≤t

[0079] x 1 =θ

[0080] y 1 =0 (1)

[0081] where θ is the independent variable of line segment 1; t is the length of line segment 1; x 1 , y 1 are the abscissa and ordinate of line segment 1, respectively.

[0082] If any flow channel curve is an arc, that is, Figure 5 the line segment BC in, the parametric equation is expressed by the following formula (2):

[0083]

[0084] where θ is the independent variable of the arc; is the central angle of the arc; x 2 , y 2 are the abscissa and ordinate of the arc, respectively; ρ is the radius of the arc.

[0085] If any flow channel curve is line segment 2, that is, Figure 5 the line segment CD in, the parametric equation is expressed by the following formula (3):

[0086] 0 ≤ θ ≤ s

[0087]

[0088] where θ is the independent variable of line segment 2; s is the length of line segment 2; x 3 , y 3 are the abscissa and ordinate of line segment 2, respectively; un is the inclination angle of line segment 2. As Figure 5 shown, un in formula (2) and formula (3) is the inclination angle of line segment 2, that is, the central angle corresponding to the arc is associated with the inclination angle of line segment 2, and further, it can ensure that line segment 2 is on the tangent line of point C of the arc.

[0089] If any flow channel curve is an elliptical arc, that is, Figure 5 the line segment DE in, the parametric equation is expressed by the following formula (4):

[0090] θ 1 ≤ θ ≤ θ 2

[0091] x 4 =(e x - e b · sin(θ)) · cos(μ) - (e y - e a · cos(θ)) · sin(μ)

[0092] y 4 =(e y - e a·cos(θ))·cos(μ)+(e x -e b ·sin(θ))·sin(μ) (4)

[0093] Among them, θ is the independent variable of the elliptical arc; θ 1 and θ 2 are respectively the starting angle and the ending angle of the elliptical arc; e x and e y are respectively the x-axis coordinate and the y-axis coordinate of the center of the elliptical arc; e a and e b are respectively the major axis length and the minor axis length of the elliptical arc; x 4 and y 4 are respectively the abscissa and the ordinate of the elliptical arc; μ is the deflection angle between the major axis of the elliptical arc and the y-axis.

[0094] If any section of the flow channel curve is line segment 3, that is, Figure 5 the line segment EF in, then the parametric equation is represented by the following formula (5):

[0095] 0≤θ≤d

[0096]

[0097] y 5 =-hc (5)

[0098] Among them, θ is the independent variable of line segment 3; d is the length of line segment 3; bc is the single flow channel width of line segment 3; hc is the flow channel height of line segment 3; x 5 and y 5 are respectively the abscissa and the ordinate of line segment 3.

[0099] In addition, since the positions and normal vectors of the connection points of two adjacent flow channel curves are the same. For example, for the connection point of curve BC and curve CD, the position coordinates and the normal vector of the last point on curve BC must be the same as the position coordinates and the normal vector of the starting point of curve CD. Therefore, in the embodiments of the present application, the curve points at the connection can be represented by the following formula (6):

[0100]

[0101] Among them, n x represents the component of the normal vector in the x-axis direction; n y represents the component of the normal vector in the y-axis direction; x represents the x-axis coordinate of this curve point; y represents the y-axis coordinate of this curve point. In the present application, algebraic methods or numerical methods can be used to solve the above formula (6).

[0102] Step 303: Optimize the characteristic parameters corresponding to the parametric equation to obtain the optimized flow channel curve corresponding to any section of the flow channel curve.

[0103] In the embodiment of the present application, when optimizing the characteristic parameters corresponding to the parametric equation to obtain the optimized flow channel curve corresponding to any section of the flow channel curve, first, multiple point clouds corresponding to any section of the flow channel curve can be generated according to different given characteristic parameter values; then, multiple flow channel curves corresponding to any section of the flow channel curve can be obtained based on these multiple point clouds; finally, the flow channel curve with the best performance (for example, the maximum velocity of the fuel gas entering the flow channel, etc.) among the multiple flow channel curves can be determined as the optimized flow channel curve corresponding to any section of the flow channel curve.

[0104] In addition, in order to accelerate the parametric design of the connector flow channel, in the embodiment of the present application, the above (1)-(6) and the parameter solving method can also be written as an excel program to reduce manual participation and improve the calculation efficiency. Specific embodiment:

[0106] Here, three different parameter settings are taken as examples for detailed introduction. As shown in Table 1 below, it is the parameter setting table provided by the embodiment of the present application.

[0107] Furthermore, substituting the parameter settings shown in Table 1 into the above formulas (1)-(6) for solution, the point cloud coordinates of 3 line shapes corresponding to the single-sided connector arch-shaped flow channel to be designed can be obtained. As shown in Table 2 below, it is the point cloud coordinate table provided by the embodiment of the present application. Then, 3 flow channel curves corresponding to the single-sided connector arch-shaped flow channel to be designed can be obtained, as Figure 6 shown, which is a schematic diagram of one kind of the flow channel cross-section line shape provided by the embodiment of the present application.

[0108] Table 1 Parameter Setting Table

[0109] Number Parameter Line shape 1 Line shape 2 Line shape 3 Set parameter 1 ρ 0.1 0.1 0.35 2 un 30 30 30 3 t 0.05 0.15 0.1 4 s 0.35 0.2 0.05 5 ea 0.3 0.3 0.3 6 d 0.35 0.25 0.1 7 bc 3 3 3 8 hc 0.75 0.75 0.65 Calculation parameter 1 μ 0 0 0 2 ex 1.1 1.1 1.1 3 ey 0.23 0.04 0.08 4 eb 0.98 0.79 0.73 5 θ1 0 0 4.3 6 θ2 53.6 60 65

[0110] Table 2 Point Cloud Coordinate Table

[0111]

[0112] In summary, since the corresponding parametric equations are defined for each split section of the flow channel curve, and the characteristic parameters in the parametric equations are optimized to obtain the optimized flow channel curve corresponding to each section of the flow channel curve, therefore, compared with the existing connector flow channel design scheme, the present application can, through the study of the linear parameters, more clearly understand what parameters (or what kind of flow channel linear shape) have a significant impact on the performance of the stack, thereby greatly improving the flow channel performance of the designed connector flow channel. In addition, such parametric design also greatly shortens the time required for design, modeling, and simulation. At the same time, it is also more conducive to the subsequent optimization using methods such as sensitivity analysis and DOE experimental design.

[0113] Based on the same inventive concept, an embodiment of the present application provides a parametric design device 70 for a connector flow channel, as Figure 7 shown. The parametric design device 70 for the connector flow channel includes:

[0114] A flow channel splitting unit 701, configured to split the connector arch-shaped flow channel to be designed into multiple sections of flow channel curves;

[0115] A parametric equation defining unit 702, configured to define a parametric equation corresponding to any section of the flow channel curve for any section of the flow channel curve;

[0116] A parameter optimization unit 703, configured to optimize the characteristic parameters corresponding to the parametric equation to obtain the optimized flow channel curve corresponding to any section of the flow channel curve.

[0117] Optionally, the flow channel splitting unit 701 is further configured to:

[0118] According to the curvature of the connector arch-shaped flow channel to be designed, split the single-sided connector arch-shaped flow channel to be designed into 5 sections of flow channel curves; among them, the 5 sections of flow channel curves sequentially include line segment 1, circular arc, line segment 2, elliptical arc, and line segment 3.

[0119] Optionally, the parameter optimization unit 703 is further configured to:

[0120] Generate multiple point clouds corresponding to any section of the flow channel curve according to the given different characteristic parameter values;

[0121] Obtain multiple flow channel curves corresponding to any section of the flow channel curve according to the multiple point clouds;

[0122] Determine the flow channel curve with the best performance among the multiple flow channel curves as the optimized flow channel curve corresponding to any section of the flow channel curve.

[0123] The parametric design device 70 for the connector flow channel can be used to execute Figures 3 - 5The method executed in the illustrated embodiment, therefore, for the functions that can be achieved by each functional module of the parametric design device 70 of the connector flow channel, reference can be made to Figures 3 - 5 the description of the illustrated embodiment, which will not be elaborated here.

[0124] In some possible implementation manners, various aspects of the method provided in this application can also be implemented in the form of a program component, which includes program code. When the program component runs on a computer device, the program code is used to cause the computer device to execute the steps in the method according to various exemplary embodiments of this application described above in this specification. For example, the computer device can execute the method executed in the Figures 3 - 5 illustrated embodiment.

[0125] Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions. The foregoing program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above method embodiments; and the foregoing storage medium includes: removable storage devices, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks, or optical disks and other various media that can store program code. Alternatively, if the above integrated unit of the present invention is implemented in the form of a software functional module and sold or used as an independent component, it can also be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiments of the present invention essentially or the part that contributes to the prior art can be embodied in the form of a software component. This computer software component is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in various embodiments of the present invention. And the foregoing storage medium includes: removable storage devices, ROM, RAM, magnetic disks, or optical disks and other various media that can store program code.

[0126] Although the preferred embodiments of this application have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of this application.

[0127] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

Claims

1. A parameterized design method for a connector flow channel, characterized in that: The method comprises: Splitting the arcuate flow channel of the connector to be designed into multiple flow channel curves; For any section of the flow channel curve, define a parameter equation corresponding to the any section of the flow channel curve; The characteristic parameters corresponding to the parameter equation are optimized to obtain an optimized flow channel curve corresponding to any section of the flow channel curve.

2. The method according to claim 1, characterized in that The step of splitting the arcuate flow channel of the connector to be designed into multiple flow channel curves includes: According to the curvature of the arcuate flow channel of the connector to be designed, the arcuate flow channel of the single-sided connector to be designed is divided into five flow channel curves; wherein the five flow channel curves include line segment 1, circular arc, line segment 2, elliptical arc and line segment 3 in sequence.

3. The method according to claim 2, characterized in that The step of defining a parametric equation corresponding to any section of the flow channel curve comprises: If any section of the flow channel curve is the line segment 1, the parameter equation is expressed by the following formula (1): 0≤θ≤t x1=θ y1＝0 (1) Among them, θ is the independent variable of the line segment 1; t is the length of the line segment 1; x1 and y1 are the horizontal and vertical coordinates of the line segment 1 respectively.

4. The method according to claim 3, characterized in that The step of defining a parametric equation corresponding to any section of the flow channel curve comprises: If any section of the flow channel curve is the arc, the parameter equation is expressed by the following formula (2): Wherein, θ is the independent variable of the arc; is the central angle of the arc; x2 and y2 are the horizontal and vertical coordinates of the arc respectively; ρ is the radius of the arc.

5. The method according to claim 4, characterized in that The step of defining a parametric equation corresponding to any section of the flow channel curve comprises: If any section of the flow channel curve is the line segment 2, the parameter equation is expressed by the following formula (3): 0≤θ≤s Among them, θ is the independent variable of the line segment 2; s is the length of the line segment 2; x3 and y3 are the horizontal coordinate and the vertical coordinate of the line segment 2 respectively; un is the inclination angle of the line segment 2.

6. The method according to claim 5, characterized in that The step of defining a parametric equation corresponding to any section of the flow channel curve comprises: If any section of the flow channel curve is the elliptical arc, the parametric equation is expressed by the following formula (4): θ1≤θ≤θ2 x4=(e x -e b ·sin(θ))·cos(μ)-(e y -e a ·cos(θ)·sin(μ) y4=(e y -e a ·cos(θ))·cos(μ)+(e x -e b ·sin(θ))·sin(μ) (4) Wherein, θ is the independent variable of the elliptical arc; θ1 and θ2 are the starting angle and the ending angle of the elliptical arc respectively; e x 、e y are the center x-axis coordinate and the center y-axis coordinate of the elliptical arc respectively; a 、e b are the major axis length and minor axis length of the elliptical arc respectively; x4 and y4 are the horizontal coordinate and vertical coordinate of the elliptical arc respectively; μ is the deflection angle between the major axis and the y axis of the elliptical arc.

7. The method according to claim 6, characterized in that The step of defining a parametric equation corresponding to any section of the flow channel curve comprises: If any section of the flow channel curve is the line segment 3, the parameter equation is expressed by the following formula (5): 0≤θ≤d y5=-hc (5) Among them, θ is the independent variable of the line segment 3; d is the length of the line segment 3; bc is the single flow channel width of the line segment 3; hc is the flow channel height of the line segment 3; x5 and y5 are the horizontal and vertical coordinates of the line segment 3 respectively.

8. The method according to claim 1, characterized in that The step of optimizing the characteristic parameters corresponding to the parametric equation to obtain the optimized flow channel curve corresponding to any section of the flow channel curve comprises: According to given different characteristic parameter values, a plurality of point clouds corresponding to any section of the flow channel curve are generated; According to the plurality of point clouds, a plurality of flow channel curves corresponding to any section of the flow channel curve are obtained; The flow channel curve with the best performance among the multiple flow channel curves is determined as the optimized flow channel curve corresponding to any section of the flow channel curve.

9. A parametric design device for a connector flow channel, characterized in that: The device comprises: A flow channel splitting unit is used to split the arcuate flow channel of the connector to be designed into multiple flow channel curves; A parameter equation definition unit, used for defining a parameter equation corresponding to any section of the flow channel curve; The parameter optimization unit is used to optimize the characteristic parameters corresponding to the parameter equation to obtain the optimized flow channel curve corresponding to any section of the flow channel curve.

10. An electronic device, characterized in that: The device comprises: A memory for storing program instructions; A processor is used to call the program instructions stored in the memory, and execute any method according to claims 1-8 according to the obtained program instructions.

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