Ultrathin magnetic integrated transformer implementation method and device for LLC topology

Abstract

The invention relates to an ultrathin magnetic integrated transformer implementation method and device for LLC topology, and relates to the technical field of transformers, and the method comprises the steps: collecting a transformation application demand; generating a coil specification and a resonant inductance value according to a transformation application requirement; the primary coil, the secondary coil, the winding framework, the insulating insert and the magnetic core piece are selected according to the coil specification; generating an air gap depth value in combination with the resonant inductance value and the coil specification; generating gasket installation information according to the air gap depth value; winding the selected primary coil and secondary coil on a winding framework side by side, and mounting an insulating insert for separation; and adjusting a second magnetic column on the magnetic core piece according to the gasket installation information, and installing the preset magnetic core piece. The transformer has the advantage that the transformer can be conveniently used in ultra-thin application occasions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformers, in particular to a method and device for implementing an ultra-thin magnetic integrated transformer for an LLC topology. BACKGROUND

[0002] A transformer is a static electrical device that uses electromagnetic induction to transfer electrical energy from one circuit to another without changing the frequency, and is a core device that is essential and indispensable in a power system, and generally includes a secondary coil, a primary coil and a core.

[0003] An LLC topology is used for the circuit structure of a high-power and high-efficiency switching power supply. The LLC topology includes an isolation transformer for electrical isolation and voltage conversion, and a resonant inductor for generating a resonant frequency. By connecting and installing the independent resonant inductor and the isolation transformer, high-efficiency soft switching and voltage regulation are achieved.

[0004] Since the current LLC topology is generally used in notebook computer power adapters, small chargers and other space-sensitive devices, the resonant inductor and the isolation transformer are two separate components, and both require additional installation space, which is not convenient for use in ultra-thin applications. SUMMARY

[0005] In order to facilitate the use of transformers in ultra-thin applications, the present application provides a method and device for implementing an ultra-thin magnetic integrated transformer for an LLC topology.

[0006] In a first aspect, the present application provides a method for implementing an ultra-thin magnetic integrated transformer for an LLC topology, which adopts the following technical solution: A method for implementing an ultra-thin magnetic integrated transformer for an LLC topology, comprising: S1: collecting transformer application requirements; S2: generating coil specifications and resonant inductor values according to transformer application requirements; S3: selecting a primary coil, a secondary coil, a winding frame, an insulating insert and a magnetic core component according to the coil specifications; S4: generating an air gap depth value in combination with the resonant inductor value and the coil specifications; S5: generating gasket installation information according to the air gap depth value; S6: arranging the selected primary coil and secondary coil side by side on the winding frame and installing the insulating insert to separate them; S7: adjusting a second magnetic column on the magnetic core component according to the gasket installation information, and installing a pre-set magnetic core component.

[0007] By adopting the technical scheme, the precise design and assembly of the ultra-thin magnetic integrated transformer are realized by collecting the transformer application demand and generating the precise coil specification and resonant inductance value based on the demand, combining the air gap depth calculation and the gasket installation scheme, so that the performance of the transformer is highly matched with the design demand, and meanwhile, the integration and reliability of the product are effectively improved through the insulation insert installation and the magnetic core adjustment, thereby facilitating the transformer to be used in the ultra-thin application occasion.

[0008] Optionally, the method for generating the coil specification and the resonant inductance value comprises: S21: retrieving the application scenario, the load condition and the target efficiency based on the transformer application demand; S22: determining the scene allowable size, the scene reference input voltage and the scene reference output voltage according to the application scenario; S23: calculating the coil turn ratio through the scene reference input voltage and the scene reference output voltage; S24: determining the primary initial specification in combination with the coil turn ratio and the scene reference input voltage; S25: generating the primary selected specification in combination with the scene allowable size and the primary initial specification; S26: determining the secondary selected specification in combination with the primary selected specification and the coil turn ratio; S27: determining the inductance demand value in combination with the coil turn ratio, the scene reference output voltage, the scene reference input voltage, the load condition and the target efficiency, and taking the primary selected specification and the secondary selected specification as the coil specification and taking the inductance demand value as the resonant inductance value.

[0009] By adopting the technical scheme, the coil turn ratio, the primary and secondary selected specifications and the resonant inductance value are systematically determined by extracting the key parameters such as the application scenario, the load condition and the target efficiency from the transformer application demand, so that the performance adaptability and stability of the transformer under different working conditions are ensured.

[0010] Optionally, the method for generating the primary selected specification comprises: S251: determining the initial specification size and the specification adaptive temperature value based on the primary initial specification; S252: determining the size compliance number and the size deviation value in combination with the initial specification size and the scene allowable size; S253: determining whether the size compliance number is greater than a preset compliance reference number; S254: if yes, generating the size selected reference value in combination with the size deviation value and the specification adaptive temperature value; S255: sorting from large to small based on the size selected reference value, and taking the primary initial specification corresponding to the size selected reference value with the first order in the sorting as the primary selected specification; S256: If no, then based on the size deviation value, sorting from small to large, and taking the primary initial specification corresponding to the first size deviation value in the sorting as the primary selected specification.

[0011] By adopting the above technical solution, by comparing the scene allowable size with the primary initial specification, combining the size number and the deviation value judgment mechanism, the optimization selection of the primary coil specification is realized, so as to meet the size constraint while considering the specification adaptive temperature value, and the applicability and thermal performance of the transformer in the space limited scene are improved.

[0012] Optionally, the size selection reference value generation method comprises: S2541: determining a scene estimated temperature value according to an application scene; S2542: determining a transformer temperature value according to a scene reference input voltage and a scene reference output voltage; S2543: determining a temperature adjustment value in combination with the scene estimated temperature value and the transformer temperature value; S2544: determining a temperature deviation value in combination with the temperature adjustment value and the specification adaptive temperature value; S2545: determining a temperature deviation reference value according to the temperature deviation value; S2546: determining a size deviation reference value according to the size deviation value; S2547: determining a comprehensive reference value in combination with the temperature deviation reference value and the size deviation reference value, and taking the comprehensive reference value as the size selection reference value.

[0013] By adopting the above technical solution, by introducing the scene estimated temperature value and the transformer temperature value, calculating the temperature adjustment value and the temperature deviation reference value, and combining the size deviation reference value to generate the comprehensive reference value, the size optimization under the influence of multiple parameters is realized, the systematization and environmental adaptability of the coil specification selection are improved, and the stable performance of the transformer under complex working conditions is ensured.

[0014] Optionally, the air gap depth value generation method comprises: S41: determining a magnetic core specification of the magnetic core component and a coil turn number of the primary coil according to the coil specification; S42: retrieving a magnetic core reluctance value and a magnetic core cross-sectional area based on the magnetic core specification; S43: determining a required reluctance value according to the resonant inductance value and the coil turn number; S44: generating an air gap reluctance value in combination with the required reluctance value and the magnetic core reluctance value; S45: determining a required depth value in combination with the air gap reluctance value and the magnetic core cross-sectional area, and taking the required depth value as the air gap depth value.

[0015] By adopting the technical scheme, the magnetic core parameter and the primary coil turn number are obtained through the coil specification, the required magnetic reluctance value is inversely deduced in combination with the resonant inductance value, and then the air gap magnetic reluctance value and the air gap depth value are calculated, so that the air gap depth is quantitatively designed, the accurate realization of the resonant inductance value is ensured, and the consistency of the electrical performance of the transformer is improved.

[0016] Optionally, the method for generating the air gap magnetic reluctance value comprises: S441: determining a magnetic core proportion value according to the magnetic core magnetic reluctance value and the required magnetic reluctance value; S442: determining whether the magnetic core proportion value is greater than a preset magnetic core reference proportion value; S443: if yes, determining a temperature magnetic reluctance influence value according to the temperature adjustment value; S444: determining a magnetic core magnetic reluctance adjustment value in combination with the temperature magnetic reluctance influence value and the magnetic core magnetic reluctance value; S445: calculating a difference value between the required magnetic reluctance value and the magnetic core magnetic reluctance adjustment value as the air gap magnetic reluctance value; S446: if no, calculating a difference value between the required magnetic reluctance value and the magnetic core magnetic reluctance value as the air gap magnetic reluctance value.

[0017] By adopting the technical scheme, the relationship between the magnetic core proportion value and the magnetic core reference proportion value is judged, the temperature magnetic reluctance influence value is dynamically introduced to correct the magnetic core magnetic reluctance value, the accuracy of the air gap magnetic reluctance value calculation is improved, the influence of the temperature on the magnetic circuit parameter is effectively compensated, and the parameter stability of the transformer at different temperatures is enhanced.

[0018] Optionally, the method for generating the gasket installation information comprises: S51: determining a magnetic core height value according to the magnetic core specification; S52: calculating a difference value between the magnetic core height value and the air gap depth value as a gasket height value; S53: determining a height proportion value in combination with the gasket height value and the magnetic core height value; S54: generating an installation position point according to the height proportion value; S55: combining the installation position point and the gasket height value as the gasket installation information.

[0019] By adopting the technical scheme, the gasket height value and the height proportion value are calculated through the magnetic core height value and the air gap depth value, then the installation position point and the gasket height value are generated as the gasket installation information, so that the accurate guidance of the gasket installation is realized, the realization accuracy of the air gap depth is ensured, and the consistency and efficiency of the product assembly are improved.

[0020] Optionally, the method for generating the installation position point comprises: S541: determining a height reference proportion value and an installation reference position point according to the magnetic core height value; S542: determining whether the height proportion value is greater than the height reference proportion value; S543: if yes, calculating a difference value between the height proportion value and the height reference proportion value as a proportion deviation value; S544: determining a position adjustment value according to the proportion deviation value; S545: adjusting the installation reference position point based on the position adjustment value to obtain an adjusted position point, and taking the adjusted position point as the installation position point; S546: if no, taking the installation reference position point as the installation position point.

[0021] By adopting the above technical solution, the installation position point is dynamically adjusted through comparison of the height proportion value and the height reference proportion value, the optimal arrangement of the gasket installation position is realized, the installation deviation caused by the abnormal height proportion is effectively avoided, and the fitting degree and overall structural stability of the magnetic core assembly are improved.

[0022] In a second aspect, the present application provides an ultra-thin magnetic integrated transformer device for LLC topology, which adopts the following technical solution: An ultra-thin magnetic integrated transformer device for LLC topology, applied to the implementation method of the ultra-thin magnetic integrated transformer for LLC topology as described in any one of the first aspect, comprising a secondary coil and a primary coil, further comprising: A winding framework, which is used for winding the secondary coil and the primary coil; An insulating insert, which is arranged on the winding framework and used for winding the primary coil, is located between the secondary coil and the primary coil, and is provided with a first through hole; A magnetic core, which is symmetrically arranged on the winding framework and the insulating insert; The winding framework comprises a winding column, a lower guard plate and an upper guard plate, which are used for winding the secondary coil and the primary coil, the lower guard plate is provided with a mounting hole for the insulating insert, both ends of the lower guard plate are provided with a plurality of connection terminals, and the winding column is provided with a second through hole; The magnetic core is provided with a first magnetic column, a second magnetic column and a third magnetic column, the first magnetic column passes through the first through hole, the second magnetic column is provided with an inner concave arc surface on the side close to the first magnetic column, the second magnetic column passes through the second through hole, and the third magnetic column is located on both sides of the magnetic core; The upper guard plate is provided with an arc-shaped convex plate on the side close to the second magnetic column, which is used for abutting against the inner concave arc surface.

[0023] By adopting the technical scheme, the secondary coil and the primary coil are integrated through the winding framework, the coil isolation is realized through the insulating insert, the multi-magnetic column structure and the inner concave arc surface design are adopted for the magnetic core part, and the arc-shaped convex plate is combined to realize the close fit, so that the ultra-thin and magnetic integration of the high-frequency transformer are realized, the installation space is effectively saved, and the efficient coupling and electrical isolation of the magnetic circuit are ensured.

[0024] Optionally, a plurality of wire laying grooves are formed at two ends of the lower guard plate, and the wire laying grooves correspond to the wire terminals one by one.

[0025] By adopting the technical scheme, the wire laying grooves and the wire terminals one by one are arranged on the lower guard plate, the standard arrangement and reliable connection of the coil lead are realized, the assembly convenience and the wiring reliability of the transformer are improved, and the influence of external interference on the coil performance is reduced.

[0026] In summary, the present application has at least one of the following beneficial technical effects: 1. By collecting the transformer application demand and generating accurate coil specifications and resonance inductance values based on the demand, combining air gap depth calculation and gasket installation scheme, the precise design and assembly of the ultra-thin magnetic integrated transformer are realized, so that the performance of the transformer and the design demand are highly matched, and the integration and reliability of the product are effectively improved through the installation of the insulating insert and the adjustment of the magnetic core part, so that the transformer is convenient for use in ultra-thin application occasions; 2. By extracting key parameters such as application scene, load condition and target efficiency from the transformer application demand, the number of turns of the coil, the selection specifications of the primary and secondary and the resonance inductance value are systematically determined, so that the performance adaptability and stability of the transformer under different working conditions are ensured; 3. By integrating the secondary coil and the primary coil through the winding framework, realizing the isolation between the coils through the insulating insert, adopting the multi-magnetic column structure and the inner concave arc surface design for the magnetic core part, and combining the arc-shaped convex plate to realize the close fit, the ultra-thin and magnetic integration of the high-frequency transformer are realized, the installation space is effectively saved, and the efficient coupling and electrical isolation of the magnetic circuit are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of an ultra-thin magnetic integrated transformer device; Figure 2 is an exploded schematic diagram of a secondary coil, a primary coil, a winding framework and a magnetic core part; Figure 3 is an exploded schematic diagram of a winding framework and an insulating insert; Figure 4 is a flowchart of an implementation method of an ultra-thin magnetic integrated transformer for LLC topology.

[0028] The part names referred to by the numbers in the above drawings are as follows: 1, secondary coil; 2, primary coil; 3, winding frame; 4, insulating insert; 5, first through hole; 6, magnetic core piece; 7, winding post; 8, lower guard plate; 9, upper guard plate; 10, mounting hole; 11, wiring terminal; 12, second through hole; 13, first magnetic post; 14, second magnetic post; 15, third magnetic post; 16, concave arc surface; 17, arc-shaped convex plate; 18, wire releasing groove; 19, limiting plate. DETAILED DESCRIPTION

[0029] The application will be further described in detail below with reference to the drawings and examples.

[0030] Referring to Figure 1 and Figure 2 , the embodiment of the application discloses an ultrathin magnetic integrated transformer device for LLC topology, which comprises a secondary coil 1, a primary coil 2, a winding frame 3 for winding the secondary coil 1 and the primary coil 2, an insulating insert 4 mounted on the winding frame 3, and a magnetic core piece 6 symmetrically mounted on the winding frame 3 and the insulating insert 4.

[0031] Referring to Figure 2 and Figure 3 , the winding frame 3 comprises a winding post 7 for winding the secondary coil 1 and the primary coil 2, a lower guard plate 8, and an upper guard plate 9. The cross-sectional area of the lower guard plate 8 is greater than that of the upper guard plate 9, and the cross-sectional area of the upper guard plate 9 is greater than that of the winding post 7, so that the secondary coil 1 and the primary coil 2 are limited and protected by the lower guard plate 8 and the upper guard plate 9. The lower guard plate 8 is provided with a plurality of wiring terminals 11 at both ends in the length direction. The wiring terminals 11 at the end of the lower guard plate 8 away from the insulating insert 4 are used for connecting and fixing the secondary coil 1, and the wiring terminals 11 at the end of the lower guard plate 8 close to the insulating insert 4 are used for connecting and fixing the primary coil 2. The specific number of the wiring terminals 11 at both ends of the lower guard plate 8 in the length direction is set according to actual needs.

[0032] Referring to Figure 2 and Figure 3The lower guard plate 8 is provided with an installation hole 10 for installing the insulation insert 4, and the size of the installation hole 10 is consistent with the size of the insulation insert 4. The insulation insert 4 is located between the secondary coil 1 and the primary coil 2, so that the secondary coil 1 is only wound on the winding column 7, and the primary coil 2 is wound on the insulation insert 4 and the winding column 7 at the same time, thereby blocking the coupling magnetic circuit of the secondary coil 1 and the primary coil 2 through the insulation insert 4, and increasing the leakage inductance of the transformer. The side of the insulation insert 4 close to the winding column 7 is provided with an inner concave arc surface 16, so as to facilitate the winding and placement of the secondary coil 1, and the side of the upper guard plate 9 close to the insulation insert 4 is integrally provided with an arc-shaped convex plate 17 for abutting against the inner concave arc surface 16, so as to facilitate the protection of the secondary coil 1. In this embodiment, the side of the insulation insert 4 away from the lower guard plate 8 is integrally provided with a limiting plate 19 for protecting and limiting the primary coil 2, and the limiting plate 19 is flush with the upper guard plate 9, so as to facilitate the subsequent installation of the winding frame 3 and the insulation insert 4 by the magnetic core member 6.

[0033] Referring to Figure 2 With Figure 3 The magnetic core member 6 is integrally provided with a first magnetic column 13, a second magnetic column 14 and a third magnetic column 15 on the side close to the winding frame 3. The first magnetic column 13 is located at the middle position of the magnetic core member 6, and the cross-sectional area of the first magnetic column 13 is elliptical. The winding column 7 is provided with a second penetrating hole 12 for penetrating the first magnetic column 13, and the size of the second penetrating hole 12 is consistent with the size of the first magnetic column 13, so that there is no air gap between the first magnetic column 13 and the winding column 7, facilitating the energy transmission of the secondary coil 1 and the primary coil 2. The second magnetic column 14 is located at one end of the magnetic core member 6 close to the insulation insert 4, and the insulation insert 4 is provided with a first penetrating hole 5 for penetrating the second magnetic column 14. The size of the first penetrating hole 5 is larger than the size of the second magnetic column 14, so that there is an air gap between the second magnetic column 14 and the first penetrating hole 5, thereby adjusting the size of the transformer leakage inductance through the air gap depth. The third magnetic column 15 is provided with two, and the two third magnetic columns 15 are located on both sides of the magnetic core member 6 along the width direction. The length of the third magnetic column 15 is consistent with the length of the third magnetic column 15, and the width of the third magnetic column 15 gradually decreases from the first magnetic column 13 to the second magnetic column 14, thereby further reducing the leakage inductance. In this embodiment, the heights of the first magnetic column 13, the second magnetic column 14 and the third magnetic column 15 are consistent, and the heights of the first magnetic column 13, the second magnetic column 14 and the third magnetic column 15 are equal to one-half of the height of the winding column 7, so that when two magnetic core members 6 are symmetrically installed on the upper and lower sides of the winding frame 3 and the insulation insert 4, the first magnetic column 13, the second magnetic column 14 and the third magnetic column 15 of the two magnetic core members 6 can abut.

[0034] Referring to Figure 2 With Figure 3The lower guard plate 8 is provided with a plurality of wire placing grooves 18 at both ends for placing the wires of the secondary coil 1 and the primary coil 2, and the wire placing grooves 18 correspond to the wire connection terminals 11 one by one, so that the wires of the secondary coil 1 and the primary coil 2 are not easily damaged.

[0035] With reference to Figure 4 Based on the same inventive concept, the embodiment of the present application provides a method for realizing a super-thin magnetic integrated transformer of an LLC topology, comprising: S1: collecting transformer application requirements.

[0036] The transformer application requirements refer to a series of technical indexes and constraint conditions in electrical, physical and environmental aspects required for normal work in a specific application scenario during the transformer operation. The transformer application requirements include application scenarios, load conditions and target efficiency.

[0037] The transformer application requirements are obtained after being pre-input by an operator.

[0038] S2: generating coil specifications and resonant inductance values according to the transformer application requirements.

[0039] The coil specifications refer to the specifications of the turns, wire diameter, copper foil width and thickness, and winding method of the secondary coil 1 and the primary coil 2 in the transformer. The resonant inductance values refer to the specific parameter values of the resonant inductance required in the LLC topology.

[0040] The coil specifications and resonant inductance values are generated by analyzing the transformer application requirements, which facilitates subsequent use.

[0041] In order to further ensure the rationality of the coil specifications and resonant inductance values, it is necessary to make a further separate analysis and calculation on the coil specifications and resonant inductance values, which will be described in detail through the following steps.

[0042] The method for generating the coil specifications and resonant inductance values comprises the following steps: S21: retrieving application scenarios, load conditions and target efficiency based on the transformer application requirements.

[0043] The application scenarios refer to the specific application fields, use environments and physical spaces of the transformer final product. The application scenarios include scenarios for super-thin all-in-one computers, on-board chargers (OBCs), liquid crystal televisions or LED drives. The load conditions refer to the working state range and characteristics of the electrical equipment (load) connected to the transformer secondary output. The target efficiency refers to the expected design index of the energy conversion efficiency of the power supply or the transformer itself at a specific operating point (such as the rated input voltage and rated load).

[0044] The application scene, load condition and target efficiency are called by the application demand of the transformer, which is convenient for subsequent use.

[0045] S22: Determine the scene allowable size, scene reference input voltage and scene reference output voltage according to the application scene.

[0046] The scene allowable size refers to the maximum external outline size limit that the transformer must comply with during installation. The scene reference input voltage refers to the actual voltage value applied to the secondary coil 1 under a specific application scene. The scene reference output voltage refers to the output voltage value of the primary coil 2 under a specific application scene.

[0047] Different application scenes correspond to different scene allowable sizes, scene reference input voltages and scene reference output voltages.

[0048] By inputting the application scene into the preset scene database to match the scene allowable size, scene reference input voltage and scene reference output voltage, subsequent use is facilitated.

[0049] The scene database pre-stores a comparison table of different application scenes and the corresponding scene allowable size, scene reference input voltage and scene reference output voltage. The scene database is obtained by pre-input of the operator.

[0050] For example, when the application scene is a super-thin all-in-one computer, the maximum projection area of the transformer is 30mm*40mm, and the thickness (height) must be ≤8mm, the scene reference input voltage is 400V, and the scene reference output voltage is 12V.

[0051] S23: Calculate the coil turn ratio by the scene reference input voltage and the scene reference output voltage.

[0052] The coil turn ratio refers to the proportional relationship between the number of turns of the secondary coil 1 and the number of turns of the primary coil 2.

[0053] The proportional value between the scene reference input voltage and the scene reference output voltage is calculated, and the calculation result is used as the coil turn ratio, which is convenient for subsequent use.

[0054] S24: Determine the primary initial specification in combination with the coil turn ratio and the scene reference input voltage.

[0055] The primary initial specification refers to the specification corresponding to the initial determination of the secondary coil 1.

[0056] The turn ratio of the secondary coil 1 is determined by the turn ratio ratio, the input voltage minimum turn number of the secondary coil 1 is determined by the scene reference input voltage, and the wire specification is determined, and then the larger value of the turn ratio minimum turn number and the input voltage minimum turn number is selected as the overall minimum turn number of the secondary coil 1. Then, the coil specification corresponding to the overall minimum turn number and the wire specification are all taken as the primary initial specification, which is convenient for subsequent use.

[0057] S25: Generate the primary selected specification by combining the scene allowable size and the primary initial specification.

[0058] The primary selected specification refers to the specification corresponding to the primary initial specification after selection.

[0059] The primary selected specification is generated by analyzing the scene allowable size and the primary initial specification, which is convenient for subsequent use.

[0060] In order to further ensure the rationality of the primary selected specification, it is necessary to make a further separate analysis and calculation on the primary selected specification. The specific steps are as follows.

[0061] The generation method of the primary selected specification includes the following steps: S251: Determine the initial specification size and specification adaptation temperature value based on the primary initial specification.

[0062] The initial specification size refers to the physical appearance size of the initial coil corresponding to the primary initial specification. The specification adaptation temperature value refers to the temperature value of the initial coil corresponding to the primary initial specification when it is normally working.

[0063] The physical appearance size corresponding to the primary initial specification is queried and called as the initial specification size, and the temperature value corresponding to the normal working temperature is queried and called as the specification adaptation temperature value, which is convenient for subsequent use.

[0064] S252: Determine the size compliance number and size deviation value by combining the initial specification size and the scene allowable size.

[0065] The size compliance number refers to the number value of the initial specification size that meets the scene allowable size. The size deviation value refers to the deviation value between the initial specification size and the scene allowable size.

[0066] The initial specification size that meets the scene allowable size is counted, and the counting result is taken as the size compliance number. The initial specification size that meets the scene allowable size is calculated, and the calculation result is taken as the size deviation value, which is convenient for subsequent use.

[0067] S253: Determine whether the number of size conformities is greater than the preset conformity reference number. If yes, perform S254; if no, perform S256.

[0068] The conformity reference number refers to the minimum number corresponding to the selection.

[0069] By determining whether the number of size conformities is greater than the preset conformity reference number, it is determined whether the selection can be directly based on the size deviation value.

[0070] S254: Generate a size selection reference value by combining the size deviation value and the specification adaptation temperature value.

[0071] The size selection reference value refers to the reference value corresponding to the fusion of the size deviation value and the specification adaptation temperature value, which are two different dimensional parameters, into a single comparable value.

[0072] When the number of size conformities is greater than the preset conformity reference number, it means that the selection cannot be directly based on the size deviation value at this time, so the size selection reference value is generated by analyzing the size deviation value and the specification adaptation temperature value, for subsequent use.

[0073] In order to further ensure the rationality of the size selection reference value, it is necessary to make a further separate analysis and calculation of the size selection reference value, which will be described in detail by the following steps.

[0074] The generation method of the size selection reference value includes the following steps: S2541: Determine a scene estimated temperature value according to an application scenario.

[0075] The scene estimated temperature value refers to the expected maximum working temperature of the surrounding environment or installation location when used in the application scenario.

[0076] Different application scenarios correspond to different scene estimated temperature values.

[0077] The application scenario is input into the preset scene database to match the scene estimated temperature value, for subsequent use.

[0078] The scene database pre-stores a comparison table of different application scenarios and corresponding scene estimated temperature values, which is obtained by pre-input of the operator.

[0079] S2542: Determine a temperature change value according to the scene reference input voltage and the scene reference output voltage.

[0080] The temperature change value refers to the calculated heating temperature value under the given scene reference input voltage and scene reference output voltage conditions.

[0081] The reference current is called by applying the scene, and the product value between the scene reference input voltage and the reference current is calculated to obtain the input power, the product value between the scene reference output voltage and the reference current is calculated to obtain the output power, and then the estimated temperature rise is calculated according to the input power and the output power and is used as the temperature change temperature value, which is convenient for subsequent use.

[0082] S2543: Determine the temperature adjustment value by combining the scene estimated temperature value and the temperature change temperature value.

[0083] The temperature adjustment value refers to the adjustment value corresponding to the adjustment of the temperature.

[0084] The sum value between the scene estimated temperature value and the temperature change temperature value is calculated, and the calculation result is used as the temperature adjustment value, which is convenient for subsequent use.

[0085] S2544: Determine the temperature deviation value by combining the temperature adjustment value and the specification adaptation temperature value.

[0086] The temperature deviation value refers to the deviation value between the temperature adjustment value and the specification adaptation temperature value.

[0087] The difference value between the temperature adjustment value and the specification adaptation temperature value is calculated, and the calculation result is used as the temperature deviation value, which is convenient for subsequent use.

[0088] S2545: Determine the temperature deviation reference value according to the temperature deviation value.

[0089] The temperature deviation reference value refers to the reference value corresponding to the temperature deviation.

[0090] The product value between the temperature deviation value and the preset temperature deviation coefficient is calculated, and the calculation result is used as the temperature deviation reference value, which is convenient for subsequent use.

[0091] The temperature deviation coefficient refers to the coefficient for converting the temperature deviation value into the temperature deviation reference value, and the temperature deviation coefficient is obtained by pre-inputting the operator.

[0092] S2546: Determine the size deviation reference value according to the size deviation value.

[0093] The size deviation reference value refers to the reference value corresponding to the size deviation.

[0094] The product value between the size deviation value and the preset size deviation coefficient is calculated, and the calculation result is used as the size deviation reference value, which is convenient for subsequent use.

[0095] The size deviation coefficient is a coefficient for converting the size deviation value into a size deviation reference value, and is obtained after being pre-input by an operator.

[0096] S2547: Determine a comprehensive reference value by combining the temperature deviation reference value and the size deviation reference value, and take the comprehensive reference value as the size selection reference value.

[0097] The comprehensive reference value refers to a reference value corresponding to the combination of the temperature deviation and the size deviation.

[0098] The accuracy of the obtained size selection reference value is improved by calculating the sum of the temperature deviation reference value and the size deviation reference value, taking the calculation result as the comprehensive reference value, and taking the comprehensive reference value as the size selection reference value.

[0099] S255: Sort the size selection reference values from large to small based on the size selection reference values, and take the primary initial specification corresponding to the first size selection reference value in the sorting as the primary selection specification.

[0100] The accuracy of the obtained primary selection specification is improved by sorting the size selection reference values from large to small, and taking the primary initial specification corresponding to the first size selection reference value in the sorting as the primary selection specification.

[0101] S256: Sort the size deviation values from small to large based on the size deviation values, and take the primary initial specification corresponding to the first size deviation value in the sorting as the primary selection specification.

[0102] When the number of sizes that meet the preset number of criteria is not greater than the preset number of criteria, it means that the size deviation value can be directly selected at this time, so the size deviation values are sorted from small to large, and the primary initial specification corresponding to the first size deviation value in the sorting is taken as the primary selection specification, thereby improving the accuracy of the obtained primary selection specification.

[0103] S26: Determine the secondary selection specification by combining the primary selection specification and the coil turn ratio.

[0104] The secondary selection specification refers to the specification corresponding to the selection of the primary coil 2.

[0105] The number of turns corresponding to the selected secondary coil 1 is obtained through the primary selection specification, and the secondary selection specification is obtained by calculating the number of turns corresponding to the secondary coil 1 and the coil turn ratio, thereby facilitating subsequent use.

[0106] S27: Determine the inductance requirement value by combining the coil turn ratio, the scene reference output voltage, the scene reference input voltage, the load condition, and the target efficiency, and take the primary selection specification and the secondary selection specification as the coil specification, and take the inductance requirement value as the resonance inductance value.

[0107] The inductance requirement value refers to a specific value that the inductance needs to reach in the LLC topology.

[0108] The series resonance frequency and the normalized inductance ratio are selected according to the target efficiency, and the higher the target efficiency, the higher the series resonance frequency and the normalized inductance ratio. The rated output power is determined according to the load condition, and the required maximum voltage gain is calculated according to the coil turn ratio, the scene reference output voltage, the preset forward voltage drop of the secondary side rectifier tube, and the scene reference input voltage. The inductance requirement value is calculated according to the required maximum voltage gain, the coil turn ratio, the scene reference output voltage, the preset forward voltage drop of the secondary side rectifier tube, the scene reference input voltage, the series resonance frequency, the rated output power, and the normalized inductance ratio. The primary selection specification and the secondary selection specification are used as the coil specification, and the inductance requirement value is used as the resonance inductance value, thereby improving the accuracy of the obtained coil specification and resonance inductance value. The calculation formula of the required maximum voltage gain is: Mmax = n (Vout + Vf) / (Vin / 2); Wherein, Mmax is the required maximum voltage gain, n is the coil turn ratio, Vout is the scene reference output voltage, Vf is the preset forward voltage drop of the secondary side rectifier tube, the forward voltage drop of the secondary side rectifier tube is obtained by the operator pre-input, and Vin is the scene reference input voltage.

[0109] The calculation formula of the inductance requirement value is: Lr = n 2 (Vout + Vf) 2 / (4π 2 fr 2 Pout k Mmax 2 ); Wherein, Lr is the inductance requirement value, fr is the series resonance frequency, Pout is the rated output power, and k is the normalized inductance ratio.

[0110] S3: The primary coil 2, the secondary coil 1, the winding skeleton 3, the insulating insert 4 and the magnetic core piece 6 are selected according to the coil specification.

[0111] The secondary coil 1 and the primary coil 2 are selected according to the coil specification, and the appropriate winding skeleton 3, the insulating insert 4 and the magnetic core piece 6 are selected according to the specifications corresponding to the secondary coil 1 and the primary coil 2, thereby facilitating subsequent use.

[0112] S4: Generate the air gap depth value in combination with the resonance inductance value and the coil specification.

[0113] Wherein, the air gap depth value refers to the depth value required when adjusting the air gap around the second magnetic column 14 on the magnetic core piece 6.

[0114] By analyzing the resonant inductance value and the coil specification, the air gap depth value is generated, which is convenient for subsequent use.

[0115] In order to further ensure the rationality of the air gap depth value, it is necessary to make further separate analysis and calculation on the air gap depth value, which is specifically explained as follows.

[0116] The generation method of the air gap depth value includes the following steps: S41: Determine the magnetic core specification of the magnetic core piece 6 and the coil turns of the primary coil 2 according to the coil specification.

[0117] Wherein, the magnetic core specification refers to the size specification corresponding to the magnetic core piece 6. The coil turns refer to the turns corresponding to the primary coil 2.

[0118] The magnetic core specification and the coil turns are retrieved through the coil specification, which is convenient for subsequent use.

[0119] S42: Retrieve the magnetic core reluctance value and the magnetic core cross-sectional area based on the magnetic core specification.

[0120] Wherein, the magnetic core reluctance value refers to the magnetic reluctance value that the magnetic core piece 6 can generate. The magnetic core cross-sectional area refers to the cross-sectional area of the cylinder in the magnetic core piece 6 for guiding the main magnetic flux path.

[0121] Different magnetic core specifications correspond to different magnetic core reluctance values and magnetic core cross-sectional areas.

[0122] The magnetic core specification is input into the preset magnetic core database to match the magnetic core reluctance value and the magnetic core cross-sectional area, which is convenient for subsequent use.

[0123] The magnetic core database pre-stores a comparison table of different magnetic core specifications and corresponding magnetic core reluctance values and magnetic core cross-sectional areas, which is obtained by the operator pre-input.

[0124] S43: Determine the required reluctance value according to the resonant inductance value and the coil turns.

[0125] Wherein, the required reluctance value refers to the total magnetic reluctance value that needs to be reached according to the resonant inductance value.

[0126] The square value between the coil turns is calculated, and then the quotient value between the square value and the resonant inductance value is calculated, so as to obtain the required reluctance value, which is convenient for subsequent use.

[0127] S44: Generate the air gap reluctance value in combination with the required reluctance value and the magnetic core reluctance value.

[0128] The air gap magnetic reluctance value refers to a magnetic reluctance value generated by the air gap.

[0129] The air gap magnetic reluctance value is generated by analyzing the demand magnetic reluctance value and the magnetic core magnetic reluctance value, thereby facilitating subsequent use.

[0130] In order to further ensure the rationality of the air gap magnetic reluctance value, the air gap magnetic reluctance value needs to be further analyzed and calculated separately. The specific steps are as follows.

[0131] The method for generating the air gap magnetic reluctance value comprises the following steps: S441: determining a magnetic core ratio value according to the magnetic core magnetic reluctance value and the demand magnetic reluctance value.

[0132] The magnetic core ratio value refers to a ratio value between the magnetic core magnetic reluctance value and the demand magnetic reluctance value.

[0133] The ratio value between the magnetic core magnetic reluctance value and the demand magnetic reluctance value is calculated, and the calculation result is taken as the magnetic core ratio value, thereby facilitating subsequent use.

[0134] S442: determining whether the magnetic core ratio value is greater than a preset magnetic core reference ratio value. If yes, S443 is executed; if no, S446 is executed.

[0135] The magnetic core reference ratio value refers to a maximum ratio value that can be tolerated when the temperature has no effect. The magnetic core reference ratio value is set in advance by an operator according to actual demand.

[0136] Whether the temperature has an effect is determined by determining whether the magnetic core ratio value is greater than the preset magnetic core reference ratio value.

[0137] S443: determining a temperature magnetic reluctance influence value according to a temperature adjustment value.

[0138] The temperature magnetic reluctance influence value refers to an influence degree value corresponding to the influence of the temperature on the magnetic reluctance.

[0139] When the magnetic core ratio value is greater than the preset magnetic core reference ratio value, it indicates that the temperature has an effect at this time. Therefore, the product value between the temperature adjustment value and a preset temperature influence coefficient is calculated, and the calculation result is taken as the temperature magnetic reluctance influence value, thereby facilitating subsequent use.

[0140] The temperature influence coefficient refers to a coefficient for converting the temperature adjustment value into the temperature magnetic reluctance influence value. The temperature influence coefficient is obtained by pre-inputting by an operator.

[0141] S444: determining a magnetic core magnetic reluctance adjustment value in combination with the temperature magnetic reluctance influence value and the magnetic core magnetic reluctance value.

[0142] The magnetic core magnetic reluctance adjustment value refers to the magnetic reluctance value corresponding to the adjustment of the magnetic core magnetic reluctance value.

[0143] The sum of the temperature magnetic reluctance influence value and the magnetic core magnetic reluctance value is calculated, and the calculation result is used as the magnetic core magnetic reluctance adjustment value.

[0144] S445: Calculate the difference between the required magnetic reluctance value and the magnetic core magnetic reluctance adjustment value as the air gap magnetic reluctance value.

[0145] The difference between the required magnetic reluctance value and the magnetic core magnetic reluctance adjustment value is calculated, and the calculation result is used as the air gap magnetic reluctance value, thereby improving the accuracy of the obtained air gap magnetic reluctance value.

[0146] S446: Calculate the difference between the required magnetic reluctance value and the magnetic core magnetic reluctance value as the air gap magnetic reluctance value.

[0147] When the magnetic core ratio value is not greater than the preset magnetic core reference ratio value, it means that the temperature does not have an impact at this time, so the difference between the required magnetic reluctance value and the magnetic core magnetic reluctance value is calculated, and the calculation result is used as the air gap magnetic reluctance value, thereby improving the accuracy of the obtained air gap magnetic reluctance value.

[0148] S45: Determine the required depth value by combining the air gap magnetic reluctance value and the magnetic core cross-sectional area, and use the required depth value as the air gap depth value.

[0149] The required depth value refers to the depth value reached by the required air gap.

[0150] The product of the air gap magnetic reluctance value, the magnetic core cross-sectional area, and the preset reference permeability is calculated, and the calculation result is used as the required depth value, which is then used as the air gap depth value, thereby improving the accuracy of the obtained air gap depth value.

[0151] The reference permeability refers to the magnetic permeability corresponding to the air gap in the actual use process. The reference permeability is obtained by pre-input by the operator.

[0152] S5: Generate gasket installation information according to the air gap depth value.

[0153] The gasket installation information refers to the installation information corresponding to the need to add a gasket in the air gap to meet the depth requirement.

[0154] The gasket installation information is generated by analyzing the air gap depth value, thereby facilitating subsequent use.

[0155] In order to further ensure the rationality of the gasket installation information, it is necessary to make a further separate analysis and calculation of the gasket installation information. The specific steps are as follows.

[0156] The method for generating gasket installation information comprises the following steps: S51: Determine the magnetic core height value according to the magnetic core specification.

[0157] The magnetic core height value refers to the height value corresponding to the second magnetic column 14 on the magnetic core piece 6.

[0158] The magnetic core height value is retrieved through the magnetic core specification, which is convenient for subsequent use.

[0159] S52: Calculate the difference between the magnetic core height value and the air gap depth value as the gasket height value.

[0160] The gasket height value refers to the height value corresponding to the gasket to be installed.

[0161] The difference between the magnetic core height value and the air gap depth value is calculated, and the calculation result is used as the gasket height value, which is convenient for subsequent use.

[0162] S53: Determine the height ratio value by combining the gasket height value and the magnetic core height value.

[0163] The height ratio value refers to the ratio value between the gasket height value and the magnetic core height value.

[0164] The ratio value between the gasket height value and the magnetic core height value is calculated, and the calculation result is used as the height ratio value, which is convenient for subsequent use.

[0165] S54: Generate the installation position point according to the height ratio value.

[0166] The installation position point refers to the position point corresponding to the installation of the gasket.

[0167] The installation position point is generated by analyzing the height ratio value, which is convenient for subsequent use.

[0168] In order to further ensure the rationality of the installation position point, it is necessary to make further separate analysis and calculation on the installation position point. The specific steps are as follows.

[0169] The method for generating the installation position point comprises the following steps: S541: Determine the height reference ratio value and the installation reference position point according to the magnetic core height value.

[0170] The installation reference position point refers to the position point corresponding to the normal installation according to the magnetic core height value. The height reference ratio value refers to the reference ratio value corresponding to the installation at the installation reference position point according to the magnetic core height value.

[0171] The installation reference position point is generally a bottom position point of the second magnetic column 14 on the magnetic core 6. By inputting the magnetic core height value into a preset magnetic core height database to match a height reference proportion value, subsequent use is facilitated.

[0172] The magnetic core height database pre-stores a comparison table of different magnetic core height values and corresponding height reference proportion values. The greater the magnetic core height value, the greater the height reference proportion value. The magnetic core height database is obtained by pre-input of an operator.

[0173] S542: Determine whether the height proportion value is greater than the height reference proportion value. If yes, perform S543; if no, perform S546.

[0174] Wherein, by judging whether the height proportion value is greater than the height reference proportion value, it is determined whether the installation reference position point can be directly used.

[0175] S543: Calculate the difference between the height proportion value and the height reference proportion value as a proportion deviation value.

[0176] Wherein, the proportion deviation value refers to the deviation value corresponding to the height proportion value when there is a deviation.

[0177] When the height proportion value is greater than the height reference proportion value, it means that the installation reference position point cannot be directly used at this time. Therefore, the difference between the height proportion value and the height reference proportion value is calculated, and the calculation result is taken as the proportion deviation value, which facilitates subsequent use.

[0178] S544: Determine the position adjustment value according to the proportion deviation value.

[0179] Wherein, the position adjustment value refers to the distance value corresponding to the adjustment of the installation reference position point in the direction away from the bottom of the second magnetic column 14.

[0180] By calculating the product value between the proportion deviation value and a preset position adjustment coefficient, and taking the calculation result as the position adjustment value, subsequent use is facilitated.

[0181] The position adjustment coefficient refers to a coefficient for converting the proportion deviation value into the position adjustment value. The position adjustment coefficient is set by the operator in advance.

[0182] S545: Adjust the installation reference position point based on the position adjustment value to obtain an adjusted position point, and take the adjusted position point as the installation position point.

[0183] Wherein, the adjusted position point refers to the position point corresponding to the adjustment of the installation reference position point.

[0184] The installation reference position point is adjusted according to the position adjustment value to obtain an adjusted position point, and the adjusted position point is used as the installation position point, thereby improving the accuracy of the obtained installation position point.

[0185] S546: The installation reference position point is used as the installation position point.

[0186] When the height ratio value is not greater than the height reference ratio value, the installation reference position point can be directly used, and thus the installation reference position point is used as the installation position point, thereby improving the accuracy of the obtained installation position point.

[0187] S55: The installation position point is combined with the gasket height value and used as gasket installation information.

[0188] The installation position point is combined with the gasket height value, and the combined information is used as gasket installation information, thereby improving the accuracy of the obtained gasket installation information.

[0189] S6: The selected primary coil 2 and secondary coil 1 are arranged side by side on the winding skeleton 3 and separated by the insulating insert 4.

[0190] The secondary coil 1 is arranged on the winding skeleton 3, and the primary coil 2 is arranged side by side on the winding skeleton 3 and the insulating insert 4, thereby separating the secondary coil 1 and the primary coil 2 by the insulating insert 4, thereby achieving the purpose of ultra-thin.

[0191] S7: The second magnetic column 14 on the magnetic core piece 6 is adjusted according to the gasket installation information, and the preset magnetic core piece 6 is installed.

[0192] The gasket is installed on the second magnetic column 14 of the magnetic core piece 6 according to the gasket installation information, and the magnetic core piece 6 is installed on the winding skeleton 3, thereby completing the installation of the transformer. The coupling magnetic circuit of the secondary coil 1 and the primary coil 2 is blocked by the skeleton insert insulation, the leakage inductance of the transformer is increased, the air gap depth of the second magnetic column 14 is adjusted by the gasket, thereby adjusting the size of the leakage inductance of the transformer, thereby eliminating the external resonant inductance, simplifying the process, and ensuring the high conversion efficiency of the transformer, and facilitating the use of the transformer in ultra-thin application occasions.

[0193] The above is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the scope of the present application is within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application are also considered to be within the protection scope of the present application.

Claims

1. A method for ultra-thin magnetic integrated transformer implementation for LLC topology, characterized in that, Comprise: S1: collect the transformer application requirements; S2: generate the coil specification and the resonant inductance value according to the transformer application requirements; S3: select the primary coil (2), the secondary coil (1), the winding skeleton (3), the insulating insert (4) and the magnetic core piece (6) according to the coil specification; S4: generate the air gap depth value in combination with the resonant inductance value and the coil specification; S5: generate the gasket installation information according to the air gap depth value; S6: the selected primary coil (2) and the secondary coil (1) are arranged side by side on the winding skeleton (3) and the insulating insert (4) is installed to separate them; S7: adjust the second magnetic column (14) on the magnetic core piece (6) according to the gasket installation information, and install the preset magnetic core piece (6); The generation method of the coil specification and the resonant inductance value comprises: S21: based on the transformer application requirements, the application scene, the load condition and the target efficiency are retrieved; S22: according to the application scene, the scene allowable size, the scene reference input voltage and the scene reference output voltage are determined; S23: the coil turn ratio is calculated through the scene reference input voltage and the scene reference output voltage; S24: the primary initial specification is determined in combination with the coil turn ratio and the scene reference input voltage; S25: the primary selection specification is generated in combination with the scene allowable size and the primary initial specification; S26: the secondary selection specification is determined in combination with the primary selection specification and the coil turn ratio; S27: the inductance requirement value is determined in combination with the coil turn ratio, the scene reference output voltage, the scene reference input voltage, the load condition and the target efficiency, and the primary selection specification and the secondary selection specification are taken as the coil specification, and the inductance requirement value is taken as the resonant inductance value.

2. The method for implementing an ultra-thin magnetic integrated transformer for LLC topology according to claim 1, wherein, The generation method of the primary selection specification comprises: S251: based on the primary initial specification, the initial specification size and the specification adaptation temperature value are determined; S252: the size compliance number and the size deviation value are determined in combination with the initial specification size and the scene allowable size; S253: it is determined whether the size compliance number is greater than the preset compliance reference number; S254: if yes, the size selection reference value is generated in combination with the size deviation value and the specification adaptation temperature value; S255: based on the size selection reference value, from large to small sorting is carried out, and the primary initial specification corresponding to the size selection reference value ranked first is taken as the primary selection specification; S256: if no, based on the size deviation value, from small to large sorting is carried out, and the primary initial specification corresponding to the size deviation value ranked first is taken as the primary selection specification.

3. The method for implementing an ultra-thin magnetic integrated transformer for LLC topology according to claim 2, wherein, The generation method of the size selection reference value comprises: S2541: the scene estimated temperature value is determined according to the application scene; S2542: the transformer temperature value is determined according to the scene reference input voltage and the scene reference output voltage; S2543: the temperature adjustment value is determined in combination with the scene estimated temperature value and the transformer temperature value; S2544: the temperature deviation value is determined in combination with the temperature adjustment value and the specification adaptation temperature value; S2545: the temperature deviation reference value is determined according to the temperature deviation value; S2546: the size deviation reference value is determined according to the size deviation value; S2547: determine the comprehensive reference value by combining the temperature deviation reference value and the size deviation reference value, and take the comprehensive reference value as the size selection reference value.

4. The method for implementing an ultra-thin magnetic integrated transformer for LLC topology according to claim 3, wherein, The method for generating the air gap depth value comprises: S41: determine the magnetic core specification of the magnetic core piece (6) and the coil turn number of the primary coil (2) according to the coil specification; S42: call the magnetic core reluctance value and the magnetic core cross-sectional area based on the magnetic core specification; S43: determine the required reluctance value according to the resonant inductance value and the coil turn number; S44: generate the air gap reluctance value by combining the required reluctance value and the magnetic core reluctance value; S45: determine the required depth value by combining the air gap reluctance value and the magnetic core cross-sectional area, and take the required depth value as the air gap depth value.

5. The method for ultra-thin magnetic integrated transformer implementation for LLC topology according to claim 4, wherein, The method for generating the air gap reluctance value comprises: S441: determine the magnetic core proportion value according to the magnetic core reluctance value and the required reluctance value; S442: determine whether the magnetic core proportion value is greater than the preset magnetic core reference proportion value; S443: if yes, determine the temperature reluctance influence value according to the temperature adjustment value; S444: determine the magnetic core reluctance adjustment value by combining the temperature reluctance influence value and the magnetic core reluctance value; S445: calculate the difference value between the required reluctance value and the magnetic core reluctance adjustment value as the air gap reluctance value; S446: if no, calculate the difference value between the required reluctance value and the magnetic core reluctance value as the air gap reluctance value.

6. The method for ultra-thin magnetic integrated transformer implementation for LLC topology according to claim 4, wherein, The method for generating the gasket installation information comprises: S51: determine the magnetic core height value according to the magnetic core specification; S52: calculate the difference value between the magnetic core height value and the air gap depth value as the gasket height value; S53: determine the height proportion value by combining the gasket height value and the magnetic core height value; S54: generate the installation position point according to the height proportion value; S55: combine the installation position point and the gasket height value as the gasket installation information.

7. The method for ultra-thin magnetic integrated transformer implementation for LLC topology according to claim 6, wherein, The method for generating the installation position point comprises: S541: determine the height reference proportion value and the installation reference position point according to the magnetic core height value; S542: determine whether the height proportion value is greater than the height reference proportion value; S543: if yes, calculate the difference value between the height proportion value and the height reference proportion value as the proportion deviation value; S544: determine the position adjustment value according to the proportion deviation value; S545: adjust the installation reference position point based on the position adjustment value to obtain the adjusted position point, and take the adjusted position point as the installation position point; S546: if no, take the installation reference position point as the installation position point.

8. An ultra-thin magnetic integrated transformer device for LLC topology, applied to an implementation method of an ultra-thin magnetic integrated transformer for LLC topology as claimed in any one of claims 1 to 7, comprising a secondary coil (1) and a primary coil (2), characterized in that, Further comprising: The winding framework (3) is used for winding the secondary coil (1) and the primary coil (2); The insulation insert (4) is arranged on the winding framework (3) and used for winding the primary coil (2), and is located between the secondary coil (1) and the primary coil (2) and is provided with the first penetrating hole (5); The magnetic core piece (6) is symmetrically arranged on the winding framework (3) and the insulation insert (4); The winding frame (3) comprises winding columns (7) for winding the secondary coil (1) and the primary coil (2), a lower guard plate (8) and an upper guard plate (9), the lower guard plate (8) is provided with mounting holes (10) for winding the insulating inserts (4), and the lower guard plate (8) is provided with a plurality of connecting terminals (11) at both ends, and the winding columns (7) are provided with second through holes (12); The magnetic core member (6) is provided with a first magnetic column (13), a second magnetic column (14) and a third magnetic column (15), the first magnetic column (13) passes through the first through hole (5), the second magnetic column (14) is provided with an inner concave arc surface (16) on the side close to the first magnetic column (13), the second magnetic column (14) passes through the second through hole (12), and the third magnetic column (15) is located on both sides of the magnetic core member (6); The upper guard plate (9) is provided with an arc-shaped convex plate (17) on the side close to the second magnetic column (14) and used for abutting against the inner concave arc surface (16).

9. The ultrathin magnetic integrated transformer device for LLC topology according to claim 8, wherein: The lower guard plate (8) is provided with a plurality of wire releasing grooves (18) at both ends, and the wire releasing grooves (18) correspond to the connecting terminals (11) one by one.

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