CN114861504A - Induction heating magnetic circuit design method and device - Google Patents
Induction heating magnetic circuit design method and device Download PDFInfo
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- CN114861504A CN114861504A CN202210637096.7A CN202210637096A CN114861504A CN 114861504 A CN114861504 A CN 114861504A CN 202210637096 A CN202210637096 A CN 202210637096A CN 114861504 A CN114861504 A CN 114861504A
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- 230000006698 induction Effects 0.000 title claims abstract description 128
- 238000010438 heat treatment Methods 0.000 title claims abstract description 119
- 238000013461 design Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004364 calculation method Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000005457 optimization Methods 0.000 claims description 7
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- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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Abstract
The invention discloses a design method and a device of an induction heating magnetic circuit, wherein the method comprises the steps of confirming the design index of a target heating object to an induction heating coil; establishing an induction heating model according to the design index; setting the structural parameters of the appearance dimension, the electrical parameters of the induction heating work and the material properties of the induction heating model; and 3D calculation is carried out according to the induction heating model to obtain a 3D design cloud picture. By adopting the embodiment of the invention, the 3D design cloud picture of the induction heater is obtained, the induction heating coil which meets the target heating object can be accurately designed by utilizing the cloud picture, and the requirements of the induction heating coil design on efficiency, precision and universality are met.
Description
Technical Field
The invention relates to the field of induction heating design, in particular to a method and a device for designing an induction heating magnetic circuit.
Background
For the induction heating equipment, the induction heating coil is a core part of a heating part of the induction heating equipment, and the performance of the induction heating equipment directly determines the performance of the induction heating equipment. One of the most important research directions in the field of induction heater research today is the research on the magnetic circuit design of induction heaters. However, the current design method of the magnetic circuit of the induction heater is not mature enough, and the design process of the magnetic circuit of the induction heater has a plurality of bottleneck problems.
In the induction heating process, the size between the heated object and the induction heater influences the quality of the heating process, the density of magnetic lines of force of the alternating magnetic field generated by the induction heater influences the heating effect, and the heating efficiency is improved due to the magnetic field form suitable for the shape of the processed workpiece. When the magnetic field intensity of the alternating magnetic field generated by the induction coil where the processed workpiece is located is lower, the heating efficiency is poor, the energy loss is high, and the induction heater is close to an idle state, so that the induction heater is down. The position where the workpiece is heated at the position where the magnetic field strength is highest is the best choice.
However, most of the induction coils in the current induction heaters are designed according to the size of the heated object by formula calculation, which obviously cannot meet the heating requirements of the heated workpiece with a special shape and a special position, and has no universality. Because the traditional design method calculates the resonant frequency by calculating the penetration depth of induction heating, the method for calculating the size and the number of turns of the induction coil according to the size of the processed workpiece has low precision and is only suitable for the same batch of workpieces, and when the workpieces are replaced, the efficiency of the induction coil designed by the traditional method is possibly reduced. When the shape of the processed workpiece is precise and the structure is complex, the traditional design method is difficult to obtain accurate analysis and design results.
Disclosure of Invention
The invention provides a method and a device for designing an induction heating magnetic circuit, which are used for establishing an induction heating model, carrying out finite element 3D (three-dimensional) design and analysis and obtaining an induction coil design model.
In order to solve the above technical problem, a first aspect of the embodiments of the present application provides an inductive heating magnetic circuit design method, including:
determining an execution index of a target object heating procedure;
determining the three-dimensional size of an induction heating workpiece;
designing an induction heating model according to the design index;
setting the structural parameters of the appearance dimension, the electrical parameters of the induction heating work and the material properties of the induction heater;
and 3D calculation is carried out according to the induction heating model to obtain a 3D design cloud picture of the induction heater.
In a possible implementation manner of the first aspect, before the performing 3D calculation according to the induction heating 3D model to obtain the 3D design cloud image, the method further includes:
and (3) introducing the induction heating model into COMSOL Multiphysics for size optimization design.
In a possible implementation manner of the first aspect, the performing 3D calculation according to the induction heating 3D model specifically includes:
and performing finite element 3D transient field analysis design by combining simulation software according to the induction heating model.
In a possible implementation manner of the first aspect, the apparent size structural parameters include the number of turns of the induction heating coil, a wire diameter, a coil diameter and a coil pitch;
the induction heating working electrical parameters comprise induction heating power supply working power, working current and working frequency;
the material properties include the induction heating coil material, the electrical conductivity and magnetic permeability of the heated workpiece material, and the curie point of the heated workpiece, the operating frequency range of the ferrite for magnetic circuit guidance design.
A second aspect of embodiments of the present application provides an induction heating magnetic circuit designing apparatus, including:
the index confirming module is used for confirming the design index of the heated object to the induction heater;
the model establishing module is used for establishing an induction heating model according to the design index;
the parameter setting module is used for setting the structural parameters of the appearance size, the electrical parameters of the induction heating work and the material properties of the induction heater;
and the 3D calculation module is used for performing 3D calculation according to the induction heating model to obtain a 3D design cloud picture.
Compared with the prior art, the induction heating design method and the induction heating design device provided by the embodiment of the invention have the advantages that the induction heating model is firstly constructed, parameters of the induction heating model are set hierarchically, the obtained induction heating model is subjected to size optimization, magnetic circuit guidance optimization and 3D calculation by combining simulation software, and finally, a complete 3D design cloud picture is obtained. The cloud picture can be used for accurately designing the heating index meeting the special heating target and meeting the requirements of the heating position and the heating depth of the heated workpiece.
Drawings
Fig. 1 is a schematic flow chart of a method for designing an induction heating magnetic circuit according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an application of a method for designing an induction heating magnetic circuit according to an embodiment of the present invention;
fig. 3 is a schematic view of an induction heating 3D design cloud according to an embodiment of the invention.
Detailed Description
While the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, it is to be understood that the described embodiments are merely illustrative of some, but not all, of the embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a method for designing an induction heating magnetic circuit, the method including:
s1, determining the design index of the heated object to the induction heating magnetic circuit.
And S2, establishing an induction heating model according to the design index.
And S3, setting the appearance dimension and structure parameters, the induction heating working electrical parameters and the material properties of the induction heater.
And S4, performing 3D calculation according to the induction heating model to obtain a 3D design cloud picture of the induction heater.
In view of the present, the core components of an induction heater include an induction heating power supply and an induction heating coil;
the design of the induction heating power supply tends to be mature, the key technology is stable, the integration of the current controller is high, and the output power control and the frequency control are easy.
Compared with the design of an induction heating power supply part, the design of the induction heating coil needs to relate to the attributes of a heated workpiece, including the factors of the size, the conductivity, the Curie temperature and the like, and the traditional formula has poor calculation precision and low applicability.
The simulation of the induction heating process is carried out through finite element analysis, and the method is an excellent choice for the design of the current induction heating magnetic circuit.
Illustratively, the design dimension structural parameters include the number of turns of the induction heating coil, the wire diameter, the coil diameter and the coil spacing;
the induction heating working electrical parameters comprise induction heating power supply working power, working current and working frequency;
the material properties include the induction heating coil material, the electrical conductivity and magnetic permeability of the heated workpiece material, and the curie point of the heated workpiece, the operating frequency range of the ferrite for magnetic circuit guidance design.
Before the performing 3D calculation according to the induction heating 3D model to obtain the 3D design cloud image, the method further includes:
and (3) introducing the induction heating model into COMSOL Multiphysics for size optimization design.
Illustratively, the performing 3D computation according to the induction heating model specifically includes:
and designing a finite element 3D transient field by combining simulation software according to the induction heating model.
The 3D calculation is electromagnetic thermal calculation of finite element 3D transient field design, and a 3D calculation cloud picture is obtained after the calculation is completed, wherein the cloud picture comprises the size structure parameters and the field temperature parameters of the induction heating coil. Referring to fig. 3, in a cloud layered display, a person skilled in the art can clearly and intuitively obtain all parameters of the design of the induction heater, thereby effectively designing the magnetic circuit of the induction heating coil.
Compared with the prior art, the method for designing the induction heating magnetic circuit, provided by the embodiment of the invention, comprises the steps of firstly constructing the induction heating model, setting parameters of the induction heating model in a hierarchical mode, carrying out size optimization and 3D calculation on the obtained induction heating model by combining simulation software, and finally obtaining the complete 3D design cloud picture. The cloud picture can be used for accurately designing the induction heating coil which meets the heating index of a target heating object, and the requirements of accuracy, efficiency and universality are met.
A second aspect of embodiments of the present application provides an induction heating magnetic circuit designing apparatus, including: the device comprises an index confirmation module, a model establishment module, a parameter setting module and a 3D calculation module.
The index confirming module is used for confirming the design index of the heated object to the induction heater;
the model establishing module is used for establishing an induction heating model according to the design index;
the model establishing module is used for establishing an induction heating model according to the design index;
and the 3D calculation module is used for performing 3D calculation according to the induction heating model to obtain a 3D design cloud picture.
It will be clear to those skilled in the art that the detailed operation of the above-described apparatus will not be described herein for the sake of clarity and convenience.
Compared with the prior art, the method and the device for designing the induction heating magnetic circuit provided by the embodiment of the invention have the advantages that the induction heating model is constructed firstly, parameters of the induction heating model are set hierarchically, the obtained induction heating model is subjected to size optimization and 3D calculation by combining simulation software, and finally, a complete 3D design cloud picture is obtained. The cloud picture can be used for accurately designing the induction heating coil which meets the heating index of a target heating object, and the requirements of accuracy, efficiency and universality are met.
The above description is a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present invention as described in the specification and the accompanying drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A method and a device for designing an induction heating magnetic circuit are characterized by comprising the following steps:
confirming the design index of the target heating object to the induction heating coil;
establishing an induction heating model according to the design index;
setting the structural parameters of the appearance dimension, the electrical parameters of the induction heating work and the material properties of the induction heater;
and 3D calculation is carried out according to the induction heating model to obtain a 3D design cloud picture of the induction heater.
2. The method of claim 1, wherein before the 3D calculation according to the induction heating model to obtain the 3D design cloud, the method further comprises:
and (3) introducing the induction heating model into COMSOL Multiphysics for size optimization design.
3. The method for designing an induction heating magnetic circuit according to claim 1, wherein the performing 3D calculation based on the induction heating model specifically includes:
and designing a finite element 3D transient field by combining simulation software according to the induction heating model.
4. The design method of the induction heating magnetic circuit of claim 1, wherein the design method comprises a step of forming a magnetic circuit. The appearance size structural parameters comprise the number of turns of the induction heating coil, the wire diameter, the coil diameter and the coil interval;
the induction heating working electrical parameters comprise induction heating power supply working power, working current and working frequency;
the material properties include the induction heating coil material, the electrical conductivity and magnetic permeability of the heated workpiece material, and the curie point of the heated workpiece, the operating frequency range of the ferrite for magnetic circuit guidance design.
5. An induction heating magnetic circuit designing apparatus, comprising:
the index confirming module is used for confirming the design index of the heated object to the induction heater;
the model establishing module is used for establishing an induction heating model according to the design index;
the parameter setting module is used for setting the structural parameters of the appearance size, the electrical parameters of the induction heating work and the material properties of the induction heater;
and the 3D calculation module is used for performing 3D calculation according to the induction heating model to obtain a 3D design cloud picture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210637096.7A CN114861504A (en) | 2022-06-07 | 2022-06-07 | Induction heating magnetic circuit design method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210637096.7A CN114861504A (en) | 2022-06-07 | 2022-06-07 | Induction heating magnetic circuit design method and device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013050805A (en) * | 2011-08-30 | 2013-03-14 | Neturen Co Ltd | Design support simulation method and design support simulation device for induction heating coil |
| CN204855623U (en) * | 2015-06-08 | 2015-12-09 | 哈尔滨理工大学 | Battery remote testing system based on cloud calculates |
| CN105184020A (en) * | 2015-10-16 | 2015-12-23 | 保定四方三伊电气有限公司 | Induction heating simulation method |
| CN106529005A (en) * | 2016-10-28 | 2017-03-22 | 南昌航空大学 | Method for designing local tempering induction coil of ultrahigh-strength steel threaded type workpiece based on finite element simulation |
| CN114285196A (en) * | 2021-12-29 | 2022-04-05 | 广州广电计量检测股份有限公司 | Method and device for designing magnetic circuit of permanent magnet motor |
-
2022
- 2022-06-07 CN CN202210637096.7A patent/CN114861504A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013050805A (en) * | 2011-08-30 | 2013-03-14 | Neturen Co Ltd | Design support simulation method and design support simulation device for induction heating coil |
| CN204855623U (en) * | 2015-06-08 | 2015-12-09 | 哈尔滨理工大学 | Battery remote testing system based on cloud calculates |
| CN105184020A (en) * | 2015-10-16 | 2015-12-23 | 保定四方三伊电气有限公司 | Induction heating simulation method |
| CN106529005A (en) * | 2016-10-28 | 2017-03-22 | 南昌航空大学 | Method for designing local tempering induction coil of ultrahigh-strength steel threaded type workpiece based on finite element simulation |
| CN114285196A (en) * | 2021-12-29 | 2022-04-05 | 广州广电计量检测股份有限公司 | Method and device for designing magnetic circuit of permanent magnet motor |
Non-Patent Citations (1)
| Title |
|---|
| 彭艳: "航空发动机转速传感器的仿真及优化设计", 科技创新, 18 May 2016 (2016-05-18), pages 1 - 4 * |
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