A wireless charging coil simulation method, system and storage medium

Abstract

The present application discloses a wireless charging coil simulation method, system and storage medium, relating to the field of simulation technology. A wireless charging coil simulation method includes: simulating a plurality of coupling coefficients, a plurality of first quality factors of the transmitting coil, and a plurality of second quality factors of the receiving coil according to a first size data set of the transmitting coil and a second size data set of the receiving coil; determining first size data when the number of turns of the transmitting coil is one and second size data when the number of turns of the receiving coil is one according to the plurality of coupling coefficients, the plurality of first quality factors and the plurality of second quality factors; and simulating and determining first physical parameters of the transmitting coil and second physical parameters of the receiving coil according to a preset coupling transmission simulation model, the first size data and the second size data. The wireless charging coil simulation method of the present application can improve the development efficiency and reduce the development cost.

Description

Technical Field

[0001] The present application relates to the field of simulation technology, and in particular, to a wireless charging coil simulation method, system, and storage medium. Background Art

[0002] In related technologies, due to its characteristics such as safety, convenience, and environmental protection, wireless power transmission technology has received increasing attention in people's lives. Therefore, wireless charging technology derived from wireless power transmission technology has been widely applied to electronic products. Currently, wireless chargers developed using wireless charging technology mainly charge mobile phones. Wireless chargers involve circuits, coils, control strategies, communication protocols, etc. The research and development of wireless chargers usually focus on circuit topologies, control strategies, and coil structures. For the development of coil structures, the dimensions are usually designed first, and then coil samples are manufactured according to the dimensions for testing. This method has a slow development cycle, requires continuous manufacturing of coil samples, and has a high research and development cost. In addition, this development method cannot design the parameters of the coil well, and whether the parameters can be reasonably designed directly affects the stability and reliability of the wireless charger. Therefore, this development method limits the performance of the wireless charger to a certain extent, making it difficult for the wireless charger to be used in scenarios with higher requirements. Summary of the Invention

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present application provides a wireless charging coil simulation method, system, and storage medium, which can improve the development efficiency and reduce the development cost.

[0004] According to an embodiment of the first aspect of the present application, the wireless charging coil simulation method includes:

[0005] Based on a first size dataset of a transmitting coil and a second size dataset of a receiving coil, a plurality of coupling coefficients, a plurality of first quality factors of the transmitting coil, and a plurality of second quality factors of the receiving coil are simulated; wherein, the coupling coefficients are in one-to-one correspondence with the first quality factors and the second quality factors respectively;

[0006] Based on the plurality of coupling coefficients, the plurality of first quality factors, and the plurality of second quality factors, first size data when the number of turns of the transmitting coil is one and second size data when the number of turns of the receiving coil is one are determined;

[0007] Based on a preset coupling transmission simulation model, the first size data, and the second size data, first physical parameters of the transmitting coil and second physical parameters of the receiving coil are simulated and determined.

[0008] According to some embodiments of the present application, the first size dataset and the second size dataset both include coil thickness and size range; the size range includes an outer diameter range and an inner diameter range;

[0009] Simulating a plurality of coupling coefficients, a plurality of first quality factors of the transmitting coil, and a plurality of second quality factors of the receiving coil according to the first size dataset of the transmitting coil and the second size dataset of the receiving coil, including:

[0010] According to the first size dataset, assign values to the inner diameter, outer diameter, and thickness of the transmitting coil respectively to obtain a plurality of third size data;

[0011] According to the second size dataset, assign values to the inner diameter, outer diameter, and thickness of the receiving coil respectively to obtain a plurality of fourth size data; wherein, the third size data and the fourth size data correspond one by one;

[0012] According to a plurality of the third size data and the corresponding fourth size data, simulate a plurality of the coupling coefficients, a plurality of first quality parameters of the transmitting coil, and a plurality of second quality parameters of the receiving coil that correspond one by one to the third size data;

[0013] According to the first quality parameters and the corresponding second quality parameters, calculate the first quality factor that corresponds one by one to the third size data and the second quality factor that corresponds one by one to the fourth size data.

[0014] According to some embodiments of the present application, determining the first size data when the number of turns of the transmitting coil is one and the second size data when the number of turns of the receiving coil is one according to a plurality of the coupling coefficients, a plurality of the first quality factors, and a plurality of the second quality factors, including:

[0015] Compare to obtain the largest coupling coefficient from a plurality of the coupling coefficients;

[0016] Compare to obtain the largest first quality factor from a plurality of the first quality factors and the largest second quality factor from a plurality of the second quality factors;

[0017] Take the third size data and the fourth size data corresponding to the largest coupling coefficient as the first size data and the second size data respectively, or take the third size data corresponding to the largest first quality factor as the first size data, and take the fourth size data corresponding to the largest second quality factor as the second size data.

[0018] According to some embodiments of the present application, simulating and determining the first physical parameters of the transmitting coil and the second physical parameters of the receiving coil according to the preset coupling transmission simulation model, the first size data, and the second size data includes:

[0019] Calculating a plurality of first physical parameters of the first size data at a plurality of preset first turns;

[0020] Calculating a plurality of second physical parameters of the second size data at a plurality of preset second turns;

[0021] Simulating a plurality of the first physical parameters and a plurality of the second physical parameters through the coupling transmission simulation model to obtain a plurality of output efficiencies and a plurality of coupling efficiencies; wherein, the output efficiencies and the coupling efficiencies correspond one by one, and the coupling efficiencies respectively correspond one by one to the first physical parameters and the second physical parameters;

[0022] Selecting all the valid coupling efficiencies corresponding to the output efficiencies that meet the preset parameter requirements;

[0023] Obtaining the maximum coupling efficiency from a plurality of valid coupling efficiencies, and obtaining the corresponding first physical parameters and second physical parameters according to the maximum coupling efficiency.

[0024] According to some embodiments of the present application, the wireless charging coil simulation method further includes:

[0025] Inputting the first physical parameters and the second physical parameters into a preset circuit model, and simulating to obtain a system efficiency, a first loss of the transmitting coil, and a second loss of the receiving coil; wherein, the system efficiency respectively corresponds one by one to the first loss and the second loss;

[0026] Determining the final first size data and first physical parameters of the transmitting coil and the final second size data and second physical parameters of the receiving coil according to the system efficiency, the first loss, and the second loss.

[0027] According to some embodiments of the present application, inputting the first physical parameters and the second physical parameters into a preset circuit model, and simulating to obtain a system efficiency, a first loss of the transmitting coil, and a second loss of the receiving coil includes:

[0028] Respectively extracting a first inductance value and a first resistance value in the first physical parameters, and a second inductance value and a second resistance value in the second physical parameters;

[0029] Based on the first inductance value, the first resistance value, the second inductance value, the second resistance value, the coupling coefficient corresponding to the first physical parameter and the second physical parameter, and the preset system parameters, the system efficiency, the first loss, and the second loss are simulated.

[0030] According to some embodiments of the present application, determining the final first dimension data and the first physical parameter of the transmitting coil and the final second dimension data and the second physical parameter of the receiving coil according to the system efficiency, the first loss, and the second loss includes:

[0031] Determine whether the system efficiency, the first loss, and the second loss meet the preset parameter requirements;

[0032] When the system efficiency, the first loss, and the second loss meet the preset parameter requirements, output the first dimension data, the first physical parameter, the second dimension data, and the second physical parameter corresponding to the system efficiency.

[0033] According to some embodiments of the present application, the wireless charging coil simulation method further includes:

[0034] Obtain the test data of the transmitting coil based on the first physical parameter and the test data of the receiving coil based on the second physical parameter;

[0035] Optimize the first physical parameter and the second physical parameter according to the first test data of the transmitting coil and the second test data of the receiving coil.

[0036] According to the wireless charging coil simulation system of the second aspect embodiment of the present application, it includes:

[0037] At least one memory;

[0038] At least one processor;

[0039] At least one program;

[0040] The program is stored in the memory, and the processor executes at least one of the programs to implement the wireless charging coil simulation method as described in the first aspect embodiment.

[0041] According to the computer-readable storage medium of the third aspect embodiment of the present application, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute the wireless charging coil simulation method as described in the first aspect embodiment.

[0042] The wireless charging coil simulation method according to the embodiments of the present application has at least the following beneficial effects: First, according to the first size data set of the transmitting coil and the second size data set of the receiving coil, a plurality of coupling coefficients, a plurality of first quality factors of the transmitting coil, and a plurality of second quality factors of the receiving coil are simulated; wherein, the coupling coefficients are in one-to-one correspondence with the first quality factors and the second quality factors respectively. Second, according to the plurality of coupling coefficients, the plurality of first quality factors, and the plurality of second quality factors, the first size data when the number of turns of the transmitting coil is one and the second size data when the number of turns of the receiving coil is one are determined. Then, according to the preset coupling transmission simulation model, the first size data, and the second size data, the first physical parameters of the transmitting coil and the second physical parameters of the receiving coil are simulated and determined; then, the first physical parameters and the second physical parameters are input into the preset circuit model, and the system efficiency, the first loss of the transmitting coil, and the second loss of the receiving coil are simulated. Finally, according to the system efficiency, the first loss, and the second loss, the final first size data and the first physical parameters of the transmitting coil and the final second size data and the second physical parameters of the receiving coil are determined. The wireless charging coil simulation method of the present application can greatly reduce the number of proofing times of the coil through simulation, thereby reducing the development cost and the time consumed by development, and through simulation, the coil can have a better coupling coefficient or quality factor, thereby improving the product performance of the wireless charger. Therefore, the wireless charging coil simulation method of the present application can improve the development efficiency, reduce the development cost, and improve the product performance.

[0043] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The following further describes the present application with reference to the drawings and embodiments, wherein:

[0045] Figure 1 is a schematic flow chart of the wireless charging coil simulation method provided by an embodiment of the present application;

[0046] Figure 2 is a schematic connection diagram of the coupling transmission simulation model provided by an embodiment of the present application;

[0047] Figure 3 is a schematic connection diagram of the wireless charging coil simulation system provided by an embodiment of the present application.

[0048] REFERENCE SIGNS:

[0049] Memory 200, Processor 300. DETAILED DESCRIPTION

[0050] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0051] It should be noted that although functional module division is performed in the system schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order from the module division in the system or the order in the flowchart. Terms such as those in the specification, claims, and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence.

[0052] In the description of the present application, the meaning of "several" is more than one, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0053] In the description of the present application, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present application in combination with the specific content of the technical solution.

[0054] In the description of the present application, descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0055] Next, refer to Figure 1 Describe a wireless charging coil simulation method according to an embodiment of the present application.

[0056] It can be understood that as Figure 1 shown, the wireless charging coil simulation method includes:

[0057] Step S100: Based on the first size dataset of the transmitting coil and the second size dataset of the receiving coil, simulate multiple coupling coefficients, multiple first quality factors of the transmitting coil, and multiple second quality factors of the receiving coil; among them, the coupling coefficients are in one-to-one correspondence with the first quality factors and the second quality factors respectively.

[0058] It can be understood that both the first size dataset and the second size dataset include the coil thickness and the size range; the size range includes the outer diameter range and the inner diameter range.

[0059] Based on the first size dataset of the transmitting coil and the second size dataset of the receiving coil, simulating multiple coupling coefficients, multiple first quality factors of the transmitting coil, and multiple second quality factors of the receiving coil includes:

[0060] According to the first size dataset, assign values to the inner diameter, outer diameter, and thickness of the transmitting coil respectively to obtain multiple third size data.

[0061] According to the second size dataset, assign values to the inner diameter, outer diameter, and thickness of the receiving coil respectively to obtain multiple fourth size data; among them, the third size data and the fourth size data are in one-to-one correspondence.

[0062] Based on the multiple third size data and the corresponding fourth size data, simulate multiple coupling coefficients corresponding to the third size data, multiple first quality parameters of the transmitting coil, and multiple second quality parameters of the receiving coil.

[0063] Based on the first quality parameters and the corresponding second quality parameters, calculate the first quality factors corresponding to the third size data and the second quality factors corresponding to the fourth size data.

[0064] It should be noted that the thicknesses of both the transmitting coil and the receiving coil are fixed values. Each time a value is assigned, the transmitting coil will obtain the same thickness value, and the receiving coil will obtain another same thickness value. That is to say, the thickness of the transmitting coil remains unchanged, and the thickness of the receiving coil remains unchanged. For example, the thickness of the transmitting coil is assigned as 1 mm each time, and the thickness of the receiving coil is assigned as 0.2 mm each time.

[0065] It should be noted that the thickness can be understood as the height of the coil when it is placed flat.

[0066] It should be noted that using the Maxwell electromagnetic simulation software, the eddy current field simulation mode is adopted, the simulation frequency is 127 kHz, and a 3D model of the coil is established; parameters are assigned to the inner diameter, outer diameter, and thickness of the transmitting coil to obtain the third dimension data; parameters are assigned to the inner diameter, outer diameter, and thickness of the receiving coil to obtain the fourth dimension data; the solution domain is set to 300 mm; current excitations are added to the transmitting coil and the receiving coil, and the excitations are set to 1 A and solid; parameter scans are performed on the inner diameter and outer diameter of the transmitting coil and the receiving coil:

[0067] Inner diameter of the receiving end: 10 - 20 mm, step 2 mm; outer diameter: 46 - 51 mm, step 1 mm

[0068] Inner diameter of the transmitting end: 10 - 20 mm, step 2 mm; outer diameter: 46 - 50 mm, step 1 mm

[0069] After the simulation settings are completed, the simulation is started.

[0070] After the simulation is completed, read the first inductance value, the first resistance value of the transmitting coil, the second resistance value, the second inductance value of the receiving coil, and the coupling coefficient corresponding to a set of first inductance values, first resistance values, second resistance values, and second inductance values; regard a set of first inductance values and first resistance values as the first quality parameters and calculate the first quality factor, and regard a set of second inductance values and second resistance values as the second quality parameters and calculate the second quality factor. Specifically, the quality factor calculation formula is as follows: Quality factor Q = 2πf * L / R, where L is the inductance and R is the resistance.

[0071] Step S110, determine the first dimension data when the number of turns of the transmitting coil is one and the second dimension data when the number of turns of the receiving coil is one according to multiple coupling coefficients, multiple first quality factors, and multiple second quality factors.

[0072] It can be understood that determining the first dimension data when the number of turns of the transmitting coil is one and the second dimension data when the number of turns of the receiving coil is one according to multiple coupling coefficients, multiple first quality factors, and multiple second quality factors includes:

[0073] Compare to obtain the maximum coupling coefficient from multiple coupling coefficients;

[0074] Compare to obtain the maximum first quality factor from multiple first quality factors and the maximum second quality factor from multiple second quality factors;

[0075] Take the third dimension data and the fourth dimension data corresponding to the maximum coupling coefficient as the first dimension data and the second dimension data respectively, or take the third dimension data corresponding to the maximum first quality factor as the first dimension data, and take the fourth dimension data corresponding to the maximum second quality factor as the second dimension data.

[0076] Step S120: According to the preset coupled transmission simulation model, the first dimension data, and the second dimension data, simulate and determine the first physical parameters of the transmitting coil and the second physical parameters of the receiving coil.

[0077] It can be understood that, as Figure 2 shown, simulating and determining the first physical parameters of the transmitting coil and the second physical parameters of the receiving coil according to the preset coupled transmission simulation model, the first dimension data, and the second dimension data includes:

[0078] Calculating multiple first physical parameters of the first dimension data under a preset number of first turns;

[0079] Calculating multiple second physical parameters of the second dimension data under a preset number of second turns;

[0080] Simulating multiple first physical parameters and multiple second physical parameters through the coupled transmission simulation model to obtain multiple output efficiencies and multiple coupling efficiencies; among them, the output efficiencies and the coupling efficiencies correspond one by one, and the coupling efficiencies correspond to the first physical parameters and the second physical parameters one by one;

[0081] Selecting all the effective coupling efficiencies corresponding to the output efficiencies that meet the preset parameter requirements;

[0082] Obtaining the maximum coupling efficiency from the multiple effective coupling efficiencies, and obtaining the corresponding first physical parameters and second physical parameters according to the maximum coupling efficiency.

[0083] It should be noted that the first physical parameters include the third inductance value, the third resistance value, and the first resonance capacitance value, and the second physical parameters include the fourth inductance value, the fourth resistance value, and the second resonance capacitance value; according to the first inductance value and the first resistance value when the number of turns of the transmitting coil corresponding to the first dimension data is one, and the second inductance value and the second resistance value when the number of turns of the receiving coil corresponding to the second dimension data is one, calculate the third inductance value, the third resistance value, the fourth inductance value, and the fourth resistance value respectively; the relevant formulas are as follows:

[0084] R1 = R2 * N 2 , where R1 is the resistance value corresponding to N turns of the coil, and R2 is the resistance value corresponding to one turn of the coil;

[0085] L1 = L2 * N 2 , where L1 is the inductance value corresponding to N turns of the coil, and L2 is the inductance value corresponding to one turn of the coil;

[0086] In addition, the resonant capacitor is calculated according to the formula 2πf*L = 1 / (2πf*C), where L is the inductance value of the entire coil, f is the operating frequency during simulation, and the operating frequency is a preset value that can be adjusted as needed.

[0087] It should be noted that, as Figure 2 shown, using the coupled transmission simulation model, the output power and coupling efficiency are obtained. The coil inductance value with the output power meeting the design requirements, such as 5W, 15W, etc., and the maximum coupling efficiency is the optimal coil inductance value.

[0088] It should be noted that, combined with Figure 2 , the mathematical formulas used in the coupled transmission simulation model are as follows:

[0089] The current of the transmitting coil

[0090] The current of the receiving coil

[0091] Input power

[0092] Output power

[0093] Coupling efficiency

[0094] Among them, V S is the preset input voltage. The impedance Z1 of the transmitting coil is calculated according to its corresponding third inductance value L1, third resistance value R1, and first resonant capacitor value C1; the impedance Z2 of the receiving coil is calculated according to its corresponding fourth inductance value L2, fourth resistance value R2, second resonant capacitor value C2, and load resistance R L . ω = 2πf, and the simulation frequency f is a preset value; M is the mutual inductance value, which is calculated according to the third inductance value of the receiving coil, the fourth inductance value of the transmitting coil, and the corresponding coupling coefficient k.

[0095] It can be understood that the wireless charging coil simulation method further includes:

[0096] Inputting the first physical parameter and the second physical parameter into a preset circuit model to simulate and obtain the system efficiency, the first loss of the transmitting coil, and the second loss of the receiving coil; among them, the system efficiency corresponds one-to-one with the first loss and the second loss respectively;

[0097] Determining the final first size data and first physical parameter of the transmitting coil and the final second size data and second physical parameter of the receiving coil according to the system efficiency, the first loss, and the second loss.

[0098] It can be understood that by inputting the first physical parameter and the second physical parameter into a preset circuit model, the system efficiency, the first loss of the transmitting coil, and the second loss of the receiving coil are obtained through simulation, including:

[0099] Respectively extract the first inductance value and the first resistance value in the first physical parameter, and the second inductance value and the second resistance value in the second physical parameter;

[0100] Based on the first inductance value, the first resistance value, the second inductance value, the second resistance value, the coupling coefficient corresponding to the first physical parameter and the second physical parameter, and the system parameters, the system efficiency, the first loss, and the second loss are obtained through simulation.

[0101] It should be noted that the coupling coefficient corresponds to a set of first quality factors and second quality factors, and a set of first quality factors and second quality factors correspond to a set of first dimension data and second dimension data, and a set of first dimension data and second dimension data correspond to a set of first physical parameters and second physical parameters. Therefore, the coupling coefficient corresponds to a set of first physical parameters and second physical parameters.

[0102] It can be understood that based on the system efficiency, the first loss, and the second loss, the final first dimension data and first physical parameter of the transmitting coil and the final second dimension data and second physical parameter of the receiving coil are determined, including:

[0103] Judge whether the system efficiency, the first loss, and the second loss meet the preset parameter requirements;

[0104] When the system efficiency, the first loss, and the second loss meet the preset parameter requirements, output the first dimension data, the first physical parameter, the second dimension data, and the second physical parameter corresponding to the system efficiency.

[0105] It should be noted that the circuit model includes a power supply, a 5V - BUCK circuit, a MOS - driver (MOS drive circuit), a DC - DC converter, an inverter full - bridge, an LC resonator, a rectifier bridge, and an LDO (low - dropout linear regulator).

[0106] It can be understood that the wireless charging coil simulation method further includes:

[0107] Obtain the test data of the transmitting coil based on the first physical parameter and the test data of the receiving coil based on the second physical parameter;

[0108] Optimize the first physical parameter and the second physical parameter according to the first test data of the transmitting coil and the second test data of the receiving coil.

[0109] The wireless charging coil simulation method according to the embodiments of the present application has at least the following beneficial effects: First, according to the first size dataset of the transmitting coil and the second size dataset of the receiving coil, a plurality of coupling coefficients, a plurality of first quality factors of the transmitting coil, and a plurality of second quality factors of the receiving coil are obtained through simulation; among them, the coupling coefficients are in one-to-one correspondence with the first quality factors and the second quality factors respectively. Second, according to the plurality of coupling coefficients, the plurality of first quality factors, and the plurality of second quality factors, the first size data when the number of turns of the transmitting coil is one and the second size data when the number of turns of the receiving coil is one are determined. Then, according to the preset coupling transmission simulation model, the first size data, and the second size data, the first physical parameters of the transmitting coil and the second physical parameters of the receiving coil are determined through simulation; then, the first physical parameters and the second physical parameters are input into the preset circuit model, and the system efficiency, the first loss of the transmitting coil, and the second loss of the receiving coil are obtained through simulation. Finally, according to the system efficiency, the first loss, and the second loss, the final first size data and first physical parameters of the transmitting coil and the final second size data and second physical parameters of the receiving coil are determined. The wireless charging coil simulation method of the present application can greatly reduce the number of coil proofing times through simulation, thereby reducing the development cost and the time consumed by development, and through simulation, the coil can have a good coupling coefficient or quality factor, thereby improving the product performance of the wireless charger. Therefore, the wireless charging coil simulation method of the present application can improve the development efficiency, reduce the development cost, and improve the product performance.

[0110] The following refers to Figure 3 Describe the wireless charging coil simulation system according to the embodiments of the present application.

[0111] It can be understood that as Figure 3 shown, the wireless charging coil simulation system includes:

[0112] At least one memory 200;

[0113] At least one processor 300;

[0114] At least one program;

[0115] The program is stored in the memory 200, and the processor 300 executes at least one program to implement the above-mentioned wireless charging coil simulation method. Figure 3 Taking one processor 300 as an example.

[0116] The processor 300 and the memory 200 can be connected by a bus or other means, Figure 3 Taking the connection by bus as an example.

[0117] The memory 200, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and signals, such as program instructions / signals corresponding to the wireless charging coil simulation system in the embodiments of the present application. The processor 300 executes various functional applications and data processing by running the non-transitory software programs, instructions, and signals stored in the memory 200, that is, implements the wireless charging coil simulation method in the above method embodiments.

[0118] The memory 200 may include a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store relevant data of the above wireless charging coil simulation method, etc. In addition, the memory 200 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory 200 may optionally include a memory remotely set relative to the processor 300, and these remote memories can be connected to the wireless charging coil simulation system through a network. Examples of the above network include but are not limited to the Internet of Things, software-defined network, sensor network, Internet, enterprise intranet, local area network, mobile communication network, and their combinations.

[0119] One or more signals are stored in the memory 200 and, when executed by one or more processors 300, implement the wireless charging coil simulation method in any of the above method embodiments. For example, execute the method steps S100 to S120 described above. Figure 1 in.

[0120] Next, refer to Figure 3 to describe the computer-readable storage medium according to the embodiments of the present application.

[0121] As Figure 3 shown, the computer-readable storage medium stores computer-executable instructions, which are executed by one or more processors 300, for example, executed by one of the processors 300 in Figure 3 , enabling the above one or more processors 300 to execute the wireless charging coil simulation method in the above method embodiments. For example, execute the method steps S100 to S120 described above. Figure 1 in.

[0122] The system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0123] Through the description of the above embodiments, those of ordinary skill in the art can understand that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and their appropriate combinations. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or can be implemented as hardware, or can be implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium and a communication medium. As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information. The computer storage medium includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks or other optical disk storage, magnetic cartridges, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that a communication medium typically contains computer-readable signals, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0124] The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A wireless charging coil simulation method, characterized in that, Including: Based on a first size dataset of a transmitting coil and a second size dataset of a receiving coil, a plurality of coupling coefficients, a plurality of first quality factors of the transmitting coil, and a plurality of second quality factors of the receiving coil are obtained through simulation; wherein, both the first size dataset and the second size dataset include coil thickness and a size range; the size range includes an outer diameter range and an inner diameter range; the coupling coefficients correspond one-to-one with the first quality factors and the second quality factors respectively; Based on the plurality of coupling coefficients, the plurality of first quality factors, and the plurality of second quality factors, first size data when the number of turns of the transmitting coil is one and second size data when the number of turns of the receiving coil is one are determined; Based on a preset coupling transmission simulation model, the first size data, and the second size data, first physical parameters of the transmitting coil and second physical parameters of the receiving coil are determined through simulation; Wherein, the step of obtaining a plurality of coupling coefficients, a plurality of first quality factors of the transmitting coil, and a plurality of second quality factors of the receiving coil based on a first size dataset of the transmitting coil and a second size dataset of the receiving coil includes: Based on the first size dataset, the inner diameter, outer diameter, and thickness of the transmitting coil are respectively assigned values to obtain a plurality of third size data; Based on the second size dataset, the inner diameter, outer diameter, and thickness of the receiving coil are respectively assigned values to obtain a plurality of fourth size data; wherein, the third size data and the fourth size data correspond one-to-one; Based on the plurality of third size data and the corresponding fourth size data, a plurality of coupling coefficients corresponding to the third size data one-to-one, a plurality of first quality parameters of the transmitting coil, and a plurality of second quality parameters of the receiving coil are obtained through simulation; Based on the first quality parameters and the corresponding second quality parameters, the first quality factors corresponding to the third size data one-to-one and the second quality factors corresponding to the fourth size data one-to-one are calculated.

2. The wireless charging coil simulation method according to claim 1, wherein The step of determining first size data when the number of turns of the transmitting coil is one and second size data when the number of turns of the receiving coil is one based on the plurality of coupling coefficients, the plurality of first quality factors, and the plurality of second quality factors includes: Comparing the plurality of coupling coefficients to obtain the maximum coupling coefficient; Comparing the plurality of first quality factors to obtain the maximum first quality factor and comparing the plurality of second quality factors to obtain the maximum second quality factor; Taking the third size data and the fourth size data corresponding to the maximum coupling coefficient as the first size data and the second size data respectively, or taking the third size data corresponding to the maximum first quality factor as the first size data and taking the fourth size data corresponding to the maximum second quality factor as the second size data.

3. The wireless charging coil simulation method according to claim 1, characterized in that, Simulating and determining the first physical parameter of the transmitting coil and the second physical parameter of the receiving coil according to the preset coupling transmission simulation model, the first dimension data, and the second dimension data includes: Calculating a plurality of first physical parameters of the first dimension data under a plurality of preset first number of turns; Calculating a plurality of second physical parameters of the second dimension data under a plurality of preset second number of turns; Simulating a plurality of the first physical parameters and a plurality of the second physical parameters through the coupling transmission simulation model to obtain a plurality of output efficiencies and a plurality of coupling efficiencies; wherein, the output efficiencies and the coupling efficiencies correspond one by one, and the coupling efficiencies respectively correspond one by one to the first physical parameter and the second physical parameter; Selecting all the valid coupling efficiencies corresponding to the output efficiencies that meet the preset parameter requirements; Obtaining the maximum coupling efficiency from the plurality of valid coupling efficiencies, and obtaining the corresponding first physical parameter and second physical parameter according to the maximum coupling efficiency.

4. The wireless charging coil simulation method according to claim 1, wherein The wireless charging coil simulation method further includes: Inputting the first physical parameter and the second physical parameter into a preset circuit model to simulate and obtain the system efficiency, the first loss of the transmitting coil, and the second loss of the receiving coil; wherein, the system efficiency corresponds one by one to the first loss and the second loss; Determining the final first dimension data and the first physical parameter of the transmitting coil and the final second dimension data and the second physical parameter of the receiving coil according to the system efficiency, the first loss, and the second loss.

5. The wireless charging coil simulation method according to claim 4, characterized in that, The inputting the first physical parameter and the second physical parameter into a preset circuit model to simulate and obtain the system efficiency, the first loss of the transmitting coil, and the second loss of the receiving coil includes: Respectively extracting the first inductance value and the first resistance value in the first physical parameter, and the second inductance value and the second resistance value in the second physical parameter; Simulating and obtaining the system efficiency, the first loss, and the second loss according to the first inductance value, the first resistance value, the second inductance value, the second resistance value, the coupling coefficient corresponding to the first physical parameter and the second physical parameter, and the preset system parameters.

6. The wireless charging coil simulation method according to claim 4, wherein The determining the final first dimension data and the first physical parameter of the transmitting coil and the final second dimension data and the second physical parameter of the receiving coil according to the system efficiency, the first loss, and the second loss includes: Judging whether the system efficiency, the first loss, and the second loss meet the preset parameter requirements; When the system efficiency, the first loss, and the second loss meet the preset parameter requirements, outputting the first dimension data, the first physical parameter, the second dimension data, and the second physical parameter corresponding to the system efficiency.

7. The wireless charging coil simulation method according to claim 1, wherein The wireless charging coil simulation method further includes: Obtaining the test data of the transmitting coil sampled based on the first physical parameter and the test data of the receiving coil sampled based on the second physical parameter; Optimize the first physical parameter and the second physical parameter according to the first test data of the transmitting coil and the second test data of the receiving coil.

8. Wireless charging coil simulation system, characterized in that, Comprising: At least one memory; At least one processor; At least one program; The program is stored in the memory, and the processor executes at least one of the programs to implement the wireless charging coil simulation method according to any one of claims 1 to 7.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to execute the wireless charging coil simulation method according to any one of claims 1 to 7.

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