Double-transformer main harmonic integrated device and manufacturing method thereof

Abstract

The invention provides a double-transformer main harmonic integrated device and a manufacturing method thereof. The device comprises a first magnetic core, a second magnetic core, a first winding, a second winding and a third winding, the first magnetic core is provided with a first side column, a first middle column, a second side column, a second middle column and a third side column which are arranged in sequence; the first middle column is sleeved with the first winding, and the second middle column is sleeved with the second winding; the second magnetic core is provided with a third middle column, the second magnetic core is magnetically connected with the first side column, the third winding is arranged on the third middle column in a sleeving mode, and the third winding and the first side column form an opposite face. Two independent transformers are output on a pair of magnetic cores at the same time, the magnetic circuits of the transformers share the middle side columns to form a loop, the input ends are connected in parallel, the output ends are connected in series, meanwhile, the inductors form a magnetic loop through the side columns of the transformers, the structure is simple, the space utilization rate is high, cost is low, and high production efficiency can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic components, and in particular to a dual-transformer main-harmonic integrated device and a manufacturing method thereof. Background Art

[0002] At present, power electronic equipment has increasingly stringent requirements on component performance. With the continuous progress of society, the market demand for power electronic equipment tends to be more advanced, more high-end, more integrated and miniaturized. This trend not only promotes the synchronous development of component technology and power electronics industry, but also brings new opportunities for rapid development of component manufacturing industries such as high-frequency transformers and inductors.

[0003] In vehicle OBC (on-board charger) or charging pile equipment, the power system generally adopts LLC circuit topology. The LLC circuit of this topology is mainly composed of transformers and inductors. Given the high power, high voltage and high current required for these devices, the manufacturing process requires thicker wires and larger magnetic cores. While meeting the high current requirements, the design must also meet safety regulations within the established volume restrictions and ensure good heat dissipation performance in a closed space.

[0004] At present, based on the traditional skeleton structure + ordinary magnetic core functional structure commonly seen in the market, if the current production process and manufacturing process of the transformer and inductor industry are followed, it is difficult to realize the integration of transformers and inductors under certain volume constraints, and it is impossible to meet the demand of integrating transformers and inductors into one.

[0005] On this basis, some studies have proposed methods for winding discrete components, such as transformers and inductors. However, the current production method is usually a single person operating a single machine. When the volume of magnetic parts is highly restricted, the winding process for thicker wires and larger magnetic cores is cumbersome and cannot be automated. Large-scale production cannot be achieved, and the power electronics industry's demand for inductor production capacity cannot be met.

[0006] The LLC circuit in the prior art has the problems of low space utilization, high cost and low production efficiency. Summary of the invention

[0007] The present invention provides a dual-transformer main-harmonic integrated device and a manufacturing method thereof, so as to solve the defects of low space utilization, high cost and low production efficiency in the prior art, and realize a dual-transformer main-harmonic integrated device with high space utilization, low cost and high production efficiency.

[0008] The present invention provides a dual transformer main-harmonic integrated device, comprising a first magnetic core, a second magnetic core, a first winding, a second winding and a third winding; The first magnetic core has a first side column, a first middle column, a second side column, a second middle column and a third side column arranged in sequence; the first winding is sleeved on the first middle column, and the second winding is sleeved on the second middle column; The second magnetic core has a third middle column, the second magnetic core is magnetically connected to the first side column, and the third winding is sleeved on the third middle column to form an opposite surface to the first side column; Among them, the first side column and the first middle column form a first magnetic circuit, the first middle column and the second side column form a second magnetic circuit, the second side column and the second middle column form a third magnetic circuit, the second middle column and the third side column form a fourth magnetic circuit, and the third middle column and the first side column form a fifth magnetic circuit; the first winding, the first middle column and the first magnetic circuit, the second magnetic circuit form a first transformer, the second winding, the second middle column and the third magnetic circuit, the fourth magnetic circuit form a second transformer, and the third winding, the third middle column and the fifth magnetic circuit form an inductor.

[0009] According to a dual-transformer main-harmonic integrated device provided by the present invention, the cross-sectional area of ​​the first middle column is smaller than the cross-sectional area of ​​the second middle column; the distance between the first middle column and the air-cooling fan is smaller than the distance between the second middle column and the air-cooling fan.

[0010] According to a dual transformer main-resonant integrated device provided by the present invention, a gasket is provided in the gap between the second magnetic core and the first side column to form an air gap.

[0011] According to a dual-transformer main-harmonic integrated device provided by the present invention, the device also includes an insulating base, on which 6 holes are provided, and the 6 holes are respectively used for the output wires at both ends of the first winding, both ends of the second winding, and both ends of the third winding.

[0012] According to a dual-transformer main-resonant integrated device provided by the present invention, a friction surface is provided at a position where the base contacts the magnetic core.

[0013] According to a dual transformer main-harmonic integrated device provided by the present invention, the first center column and the second center column each include a plurality of magnetic sheets, and gaskets are provided in the gaps between the magnetic sheets to form air gaps.

[0014] According to a dual-transformer main-harmonic integrated device provided by the present invention, ventilation slots are provided in the first center column, the second center column and the third center column.

[0015] The present invention also provides a manufacturing method for assembling a dual transformer main-harmonic integrated device according to any one of claims 1 to 7, comprising the following steps: Winding a first winding, a second winding, and a third winding; Sequentially bonding magnetic sheets and gaskets based on the first half of the magnetic core to form the other half of the first middle column and the second middle column; The first winding sleeve is placed on the first center column of the first magnetic core of the first half, and the other half of the first center column is assembled on the other side of the first winding sleeve and fixed; the second winding sleeve is placed on the second center column of the first magnetic core of the first half, and the other half of the second center column is assembled on the other side of the second winding sleeve and fixed; the third winding sleeve is placed on the third center column of the pre-selected half, and the other half of the third center column is assembled on the other side of the third winding sleeve and fixed; The fixed center column and winding are assembled on the base, and the winding is led out and fixed according to the hole positions set on the base to obtain a dual transformer main-harmonic integrated device.

[0016] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, any one of the above-mentioned manufacturing methods is implemented.

[0017] The present invention also provides a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, any of the above-mentioned production methods is implemented.

[0018] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any one of the above-mentioned production methods.

[0019] The present invention provides a dual-transformer main-harmonic integrated device and a manufacturing method thereof, wherein the device comprises a first magnetic core, a second magnetic core, a first winding, a second winding and a third winding; the first magnetic core has a first side column, a first middle column, a second side column, a second middle column and a third side column arranged in sequence; the first winding is sleeved on the first middle column, and the second winding is sleeved on the second middle column; the second magnetic core has a third middle column, the second magnetic core is magnetically connected to the first side column, and the third winding is sleeved on the third middle column to form an opposite surface to the first side column; wherein the first side column and the first middle column form a first magnetic circuit, the first middle column and the second side column form a second magnetic circuit, the second side column and the second middle column form a third magnetic circuit, the second middle column and the third side column form a fourth magnetic circuit, and the third middle column and the first side column form a fifth magnetic circuit; the first winding, the first middle column and the first magnetic circuit, the second magnetic circuit form a first transformer, the second winding, the second middle column and the third magnetic circuit, the fourth magnetic circuit form a second transformer, and the third winding, the third middle column and the fifth magnetic circuit form an inductor. The present invention outputs two independent transformers on a pair of magnetic cores at the same time. The transformer magnetic circuits share the middle side column to form a loop. The input ends are connected in parallel and the output ends are connected in series. At the same time, the inductor uses the side columns of the transformer to form a magnetic loop. The structure is simple, the space utilization rate is high, the cost is low, and higher production efficiency can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is an exploded diagram of the dual-transformer main-harmonic integrated device provided by the present invention.

[0022] Figure 2 It is a top view of the dual-transformer main-harmonic integrated device provided by the present invention.

[0023] Figure 3 It is a schematic diagram of the base of the dual-transformer main-harmonic integrated device provided by the present invention.

[0024] Figure 4 It is a magnetic circuit schematic diagram of the dual transformer main-harmonic integrated device provided by the present invention.

[0025] Figure 5 It is a schematic diagram of the friction surface on the base of the dual-transformer main-harmonic integrated device provided by the present invention.

[0026] Figure 6 It is a schematic diagram of the process of the production method provided by the present invention.

[0027] Figure 7 It is a structural schematic diagram of the electronic device provided by the present invention.

[0028] Reference numerals: 1: first magnetic core; 2: second magnetic core; 101: first winding; 102: second winding; 103: first side column; 104: first middle column; 105: second side column; 106: second middle column; 107: third side column; 201: third winding; 202: third middle column; 114: first ventilation slot; 116: second ventilation slot; 212: third ventilation slot; 3: gasket; 4: base; 401: friction surface; 402: vent; 5: magnetic sheet. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Combine the following Figure 1-Figure 5 Describe the dual transformer main-harmonic integrated device of the present invention, Figure 1 FIG. 1 is an exploded diagram of a dual transformer main-harmonic integrated device provided by the present invention. Figure 1 As shown, the device includes a first magnetic core 1 , a second magnetic core 2 , a first winding 101 , a second winding 102 and a third winding 201 .

[0031] The first magnetic core 1 has a first side column 103 , a first middle column 104 , a second side column 105 , a second middle column 106 and a third side column 107 arranged in sequence; the first winding 101 is sleeved on the first middle column 104 , and the second winding 102 is sleeved on the second middle column 106 .

[0032] The second magnetic core 2 has a third middle column 202 . The second magnetic core 2 is magnetically connected to the first side column 103 . The third winding 201 is sleeved on the third middle column 202 and forms an opposite surface to the first side column 103 .

[0033] Among them, the first side column 103 and the first middle column 104 form a first magnetic circuit, the first middle column 104 and the second side column 105 form a second magnetic circuit, the second side column 105 and the second middle column 106 form a third magnetic circuit, the second middle column 106 and the third side column 107 form a fourth magnetic circuit, and the third middle column 202 and the first side column 103 form a fifth magnetic circuit; the first winding, the first middle column 104 and the first magnetic circuit and the second magnetic circuit form a first transformer, the second winding, the second middle column 106 and the third magnetic circuit and the fourth magnetic circuit form a second transformer, and the third winding, the third middle column 202 and the fifth magnetic circuit form an inductor.

[0034] It should be noted that in the prior art, due to the large current, the wire diameter used is relatively thick, which takes up space and easily causes the finished product size to exceed the limit, and the space utilization of the product structure is limited. For magnetic parts with limited volume requirements, the existing single-person single-machine operation process is cumbersome. With the rapid development of society, labor costs and material costs will increase accordingly, and product costs will also increase. Such production processes and product structures will cause waste of resources. In order to adapt to the rapid development of the times and the arrival of the intelligent era, the present invention proposes a dual-transformer main-harmonic integrated device with a simple structure and high space utilization, which lays the foundation for realizing automated production, improving production efficiency, and reducing labor and material costs.

[0035] It should be noted that the first magnetic core 1 referred to in the present invention is described by taking the EUO-type structure as an example, but this does not limit the present invention and other structures that meet the requirements may also be used to implement it.

[0036] Furthermore, the first magnetic core 1 is provided with two middle columns, namely the first middle column 104 and the second middle column 106, and three side columns, namely the first side column 103, the second side column 105 and the third side column 107. Figure 4 As shown, the transformer magnetic circuit shares the middle side column (i.e., the second side column 105) to form a loop, i.e., the second magnetic circuit and the third magnetic circuit, so that two independent transformers are implemented on the same magnetic core, while fully utilizing the space of the magnetic core. For the sake of convenience, the shared side column (i.e., the second side column 105) can be called a conjugate side column.

[0037] Furthermore, the present invention does not limit the shape of each center column. In a specific embodiment, the first center column 104 and the second center column 106 are elliptical columns.

[0038] It can be understood that the circuit topology of the dual-transformer main-resonant integrated device proposed in the present invention is an LLC structure, the input main transformers (the first transformer T1 and the second transformer T2) are connected in parallel, and the output main transformers (the first transformer T1 and the second transformer T2) are connected in series.

[0039] The present invention utilizes the structural characteristics of the magnetic core to assemble two transformer coils, thereby realizing the simultaneous output of two independent transformers on a pair of magnetic cores.

[0040] In addition, in some embodiments, the windings of the first transformer T1 and the second transformer T2 adopt a sandwich structure. In the specific implementation process, the primary winding is wound one layer first, then the secondary winding is wound, and then the primary winding is wound one layer, thereby reducing the impact of leakage inductance on EMI.

[0041] Meanwhile, it should be noted that the second magnetic core 2 mentioned in the present invention is described by taking the LO-shaped magnetic core as an example, but this does not represent a limitation on the present invention, and other structures that meet the requirements may also be used to implement the second magnetic core 2 .

[0042] like Figure 4 As shown, the second magnetic core 2 utilizes the side column of the transformer (i.e., the first side column 103) to form a magnetic circuit (the fifth magnetic circuit), and the second magnetic core 2 is magnetically connected to the first side column 103. From the perspective of the magnetic core structure, the wound wire package (i.e., the third wire group) forms an opposite surface with the side column of the transformer, and the side column magnetic core is shared, thereby saving magnetic core material.

[0043] Furthermore, in some embodiments, the winding of the inductor adopts an overlapping winding method, which is conducive to automated winding.

[0044] In other embodiments, in order to save space and cost, the first wire group, the second wire group and the third wire group of the present invention are all wound without a skeleton.

[0045] The present invention integrates two transformers and a resonant inductor, which are original independent components, into a structural magnetic core from the LLC circuit topology structure to realize a main-resonant integrated transformer. The conjugate magnetic circuit is cut off by the principle of phase cutting to reduce the volume of the magnetic core. The magnetic core body is designed with two central columns, two side columns, and one conjugate side column. The structure is side column-central column-shared side column-central column-side column. The magnetic circuit formed by the T1 and T2 transformers is side column-central column-shared side column. The shared side column will cut off the magnetic circuits of the two transformers.

[0046] It should be noted that the conjugate magnetic circuit refers to two or more magnetic circuits that complement each other in the distribution of magnetic flux, so that the total magnetic flux is evenly distributed in each magnetic circuit, thereby reducing magnetic leakage and improving the utilization of magnetic flux. The phase-cutting principle means that by reasonably configuring the shape, size and position of magnetic materials, the magnetic flux in the magnetic circuit is offset or reduced in each part, thereby achieving the purpose of reducing magnetic leakage and improving the utilization of magnetic flux.

[0047] The present invention integrates two transformers and a resonant inductor into one device by utilizing the magnetic core structure, which has a simple structure and reduces the cost while also being able to reduce magnetic leakage and improve the utilization rate of magnetic flux.

[0048] Furthermore, in some embodiments, the cross-sectional area of ​​the first center column 104 is smaller than the cross-sectional area of ​​the second center column 106 ; the distance between the first center column 104 and the air-cooling fan is smaller than the distance between the second center column 106 and the air-cooling fan.

[0049] Specifically, the embodiment of the present invention designs an unbalanced magnetic circuit structure so that the magnetic circuit direction of the magnetic core during operation does not affect the respective performances, and the middle column areas of the first transformer T1 and the second transformer T2 are set to different areas.

[0050] It should be pointed out that in this embodiment, the equipment adopts air cooling, and the fan is placed close to the middle of the product, so the area of ​​the middle column of the T1 transformer (i.e., the first middle column 104) is small, and the T2 transformer is far away from the fan position, so the area of ​​the middle column of the T2 transformer (i.e., the second middle column 106) is large. Since the T1 transformer is subject to a high wind speed, the heat dissipation of T1 is equal to that of T2.

[0051] Furthermore, in some embodiments, a gasket 3 is provided in the gap between the second magnetic core 2 and the first side column 103 to form an air gap.

[0052] Understandably, Figure 1 and Figure 2 Schematic diagrams are given of a gasket 3 provided in the gap between the second magnetic core 2 and the first side column 103 to form an air gap. On this basis, the gap between the second magnetic core 2 and the first side column 103 can be used as an air gap to achieve control of inductance. Specifically, the inductance of the inductor can be controlled by adjusting the gap adjustment distance.

[0053] On this basis, the air gap is isolated by gasket 3.

[0054] It should be noted that the gasket has the function of heat dissipation and conduction, and at the same time keeps the coil away from the air gap. On this basis, the material of the gasket 3 needs to have at least the following properties: good insulation, high mechanical strength, high thermal stability, and low magnetic permeability.

[0055] In some embodiments, the gasket 3 is a ceramic sheet.

[0056] In addition, based on the above embodiment, during the winding process of the third wire group, the coil can be further moved away from the gap point, thereby reducing the skin effect and reducing the loss.

[0057] Furthermore, in some embodiments, the device also includes an insulating base 4, and six holes are provided on the base 4, and the six holes are respectively used for the two ends of the first winding, the two ends of the second winding, and the two ends of the third winding.

[0058] Specifically, Figure 3As shown, the two transformers and the inductor are integrated together and assembled on a predetermined base 4 , and the lead-out positions of each wire group are arranged according to the hole positions predetermined on the base 4 .

[0059] Furthermore, in some embodiments, a friction surface is provided at a position where the base 4 contacts the magnetic core.

[0060] Specifically, a separate friction surface 401 is provided on the base 4, which is conducive to the magnetic core and the base not falling off easily after glue is dispensed. Figure 5 As shown, the friction surface 401 of the part is configured as a structure of multiple continuous protrusions.

[0061] Furthermore, in some embodiments, the first center column 104 and the second center column 106 each include a plurality of magnetic sheets 5 , and gaskets 3 are provided in the gaps between the magnetic sheets 5 to form air gaps.

[0062] Specifically, the first middle column 104 and the second middle column 106 are divided into n air gaps to improve the magnetic flux distribution and help the magnetic flux to be more evenly distributed in the magnetic circuit, thereby reducing the problem of local concentration of magnetic flux and magnetic saturation, and improving the efficiency and stability of the device. Figure 1 shown.

[0063] The gap is isolated by a gasket 3 , and the arrangement of the gasket 3 is the same as that of the gasket 3 in the aforementioned embodiment, which will not be described in detail in the present invention.

[0064] Further, Figure 2 The magnetic sheet and air gap setting diagram of the dual transformer main-harmonic integrated device is given, as shown in Figure 2 As shown, based on the above embodiment, in order to save assembly time, a half EUO magnetic core center column is used as part of the first center column, and the other part of the first center column is assembled and bonded by multiple magnetic sheets 5 and gaskets 3. Similarly, the second center column also adopts the same design, and the present invention will not be repeated here. In some embodiments, the magnetic sheet 5 can be an EO magnetic sheet.

[0065] In a specific embodiment, n is 3.

[0066] Furthermore, in some embodiments, ventilation slots are provided in the first center column 104 , the second center column 106 , and the third center column 202 .

[0067] Specifically, a heat conduction groove is designed in the first magnetic core 1 to facilitate the heat generated by the magnetic core and the bottom winding wire to be taken away by wind through the heat conduction groove when the product is working. In the specific setting, a first ventilation groove 114 is set in the first middle column 104, a second ventilation groove 116 is set in the second middle column 106, and a third ventilation groove 212 is set in the third middle column 202.

[0068] Furthermore, in order to increase the heat dissipation performance of the device, the base 4 adopts a sinking design, and steps are set to raise the magnetic core. Figure 3 As shown, ventilation holes 402 are provided corresponding to the ventilation slots of each center column to facilitate the removal of heat generated by the device.

[0069] The invention has the advantages of simple structure, low cost, high space utilization rate, low cost, simple production operation and convenient and quick installation, thus saving complicated processes and realizing automatic mass production.

[0070] The present invention provides a dual transformer main-harmonic integrated device, the device includes a first magnetic core, a second magnetic core, a first winding, a second winding and a third winding; the first magnetic core has a first side column, a first middle column, a second side column, a second middle column and a third side column arranged in sequence; the first winding is sleeved on the first middle column, and the second winding is sleeved on the second middle column; the second magnetic core has a third middle column, the second magnetic core is magnetically connected to the first side column, and the third winding is sleeved on the third middle column to form an opposite surface with the first side column; wherein the first side column and the first middle column form a first magnetic circuit, the first middle column and the second side column form a second magnetic circuit, the second side column and the second middle column form a third magnetic circuit, the second middle column and the third side column form a fourth magnetic circuit, and the third middle column and the first side column form a fifth magnetic circuit; the first winding, the first middle column and the first magnetic circuit, the second magnetic circuit form a first transformer, the second winding, the second middle column and the third magnetic circuit, the fourth magnetic circuit form a second transformer, and the third winding, the third middle column and the fifth magnetic circuit form an inductor. The present invention outputs two independent transformers on a pair of magnetic cores at the same time. The transformer magnetic circuits share the middle side column to form a loop, the input ends are connected in parallel, and the output ends are connected in series. At the same time, the inductor uses the side column of the transformer to form a magnetic loop. The structure is simple, the cost is low, and higher production efficiency can be achieved.

[0071] The manufacturing method provided by the present invention is described below. The manufacturing method described below and the dual-transformer main-harmonic integrated device described above can be referenced to each other.

[0072] The automatic production process of the existing technology is: 1) Use special production equipment to wind the wire required for the product on the skeleton as the front process; 2) Assemble the magnetic core separately, apply glue, and then fix and bake it through the tooling; 3) Then immerse in oil, pour glue, etc. The existing technology cannot meet the function of integrating the transformer and the inductor. At the same time, the cost of winding the transformer and the inductor with discrete components is too high and the production efficiency is too low. Therefore, it is urgent to develop a structure and assembly device that can meet the functional requirements, reduce the volume of the product, integrate multiple transformers and inductors, and popularize automated production, and then cooperate with automatic winding machines and other equipment to achieve automatic production, so as to improve production efficiency, reduce costs, save energy, and achieve sustainable development.

[0073] Based on this, the present invention provides a production method, such as Figure 6 As shown, Figure 6 Schematic diagram of the process of the invention. The method comprises the following steps: Step 710: Winding a first winding, a second winding, and a third winding.

[0074] It is understandable that the first winding is the coil of the first transformer, the second winding is the coil of the second transformer, and the third winding is the coil of the inductor. In actual operation, the first winding, the second winding, and the third winding can be wound on an automated device.

[0075] Step 720: Based on the first half of the magnetic core, the magnetic sheet 5 and the gasket 3 are sequentially bonded to form the other half of the first center column and the second center column.

[0076] It should be noted that a half EUO core center column is used as part of the first center column, and the other part of the first center column is assembled and bonded with a plurality of magnetic sheets 5 and gaskets 3. Similarly, the second center column adopts the same design.

[0077] A specific embodiment is given to illustrate step 520 in more detail. This embodiment uses an EUO magnetic core as the first magnetic core and a ceramic sheet as a gasket, and includes the following steps: epoxy glue is applied to the middle column of the half EUO magnetic core through an automated glue dispensing device, and the robot dispenses the glue while placing the ceramic sheet and the magnetic sheet in sequence. After placement, they are transferred to an oven for baking via a conveyor belt. After the epoxy glue is cured, the next step is carried out.

[0078] Step 730: Place the first winding sleeve on the first center column of the first magnetic core in half, and assemble the other half of the first center column on the other side of the first winding sleeve and fix it; place the second winding sleeve on the second center column of the first magnetic core in half, and assemble the other half of the second center column on the other side of the second winding sleeve and fix it; place the third winding sleeve on the pre-selected third center column of the half, and assemble the other half of the third center column on the other side of the third winding sleeve and fix it.

[0079] In step 730, each pre-wound wire group is placed on the pre-assembled half of the center pole, and the other half of the center pole is assembled on the other side of each wire group and fixed.

[0080] In the specific implementation process, based on the above embodiment, the following steps are included: the pre-wound wire package is placed on the pre-assembled magnetic sheets and gaskets EUO and LO cores respectively, and the other halves of EUO and LO cores are assembled on the other side of the wire package. The cores are fixed by bonding with epoxy glue and then cured after baking.

[0081] Step 740: Assemble the fixed center column and windings onto the base, route the windings according to the holes set on the base and fix them to obtain a dual transformer main-harmonic integrated device.

[0082] After the assembled magnetic core and wire package become one, the whole is assembled to the designed base. The product pins are positioned according to the holes set in the base. After glue is dispensed using glue dispensing equipment, the product is sent to an oven for baking and fixation. This completes the production of a device.

[0083] It should be noted that the manufacturing method provided in this embodiment is used to manufacture the dual-transformer main-harmonic integrated device described in the above embodiments. This method and the dual-transformer main-harmonic integrated device described in the above embodiments can refer to each other and will not be repeated here.

[0084] Figure 7 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 7As shown, the electronic device may include: a processor (processor) 810, a communication interface (Communications Interface) 820, a memory (memory) 830 and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call the logic instructions in the memory 830 to execute the manufacturing method, which includes: winding the first winding, the second winding and the third winding; sequentially bonding the magnetic sheets and the gaskets based on the first half of the first magnetic core to form the first middle column and the second middle column of the other half; placing the first winding sleeve on the first middle column of the first half of the first magnetic core, assembling the other half of the first middle column on the other side of the first winding sleeve and fixing it; placing the second winding sleeve on the second middle column of the first half of the first magnetic core, assembling the other half of the second middle column on the other side of the second winding sleeve and fixing it; placing the third winding sleeve on the pre-selected third middle column of the half, assembling the other half of the third middle column on the other side of the third winding sleeve and fixing it; assembling the fixed middle column and winding on the base, and wiring the winding according to the hole position set on the base and fixing it to obtain a dual transformer main-harmonic integrated device.

[0085] In addition, the logic instructions in the above-mentioned memory 830 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0086] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the methods provided by the above methods to execute the manufacturing method, which includes: winding a first winding, a second winding and a third winding; sequentially bonding magnetic sheets and gaskets based on the first half of the first magnetic core to form the first middle column and the second middle column of the other half; placing the first winding sleeve on the first middle column of the first half of the first magnetic core, assembling the other half of the first middle column on the other side of the first winding sleeve and fixing it; placing the second winding sleeve on the second middle column of the first half of the first magnetic core, assembling the other half of the second middle column on the other side of the second winding sleeve and fixing it; placing the third winding sleeve on the pre-selected third middle column of the half, assembling the other half of the third middle column on the other side of the third winding sleeve and fixing it; assembling the fixed middle column and winding on the base, and wiring the winding according to the hole position set by the base and fixing it to obtain a dual transformer main-harmonic integrated device.

[0087] On the other hand, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it is implemented to execute the manufacturing method provided by the above methods, the method comprising: winding a first winding, a second winding and a third winding; sequentially bonding magnetic sheets and gaskets based on the first half of the first magnetic core to form the first middle column and the second middle column of the other half; placing the first winding sleeve on the first middle column of the first half of the first magnetic core, assembling the other half of the first middle column on the other side of the first winding sleeve and fixing it; placing the second winding sleeve on the second middle column of the first half of the first magnetic core, assembling the other half of the second middle column on the other side of the second winding sleeve and fixing it; placing the third winding sleeve on the pre-selected third middle column of the half, assembling the other half of the third middle column on the other side of the third winding sleeve and fixing it; assembling the fixed middle column and windings on the base, and wiring the windings according to the hole positions set on the base and fixing them to obtain a dual transformer main-harmonic integrated device.

[0088] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0089] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-transformer main-resonant integrated device, characterized in that: comprising a first magnetic core, a second magnetic core, a first winding, a second winding and a third winding; The first magnetic core comprises a first side column, a first middle column, a second side column, a second middle column and a third side column which are arranged in sequence; the first winding is sleeved on the first middle column, and the second winding is sleeved on the second middle column; The second magnetic core has a third middle column, the second magnetic core is magnetically connected to the first side column, and the third winding is sleeved on the third middle column to form an opposite surface to the first side column; Among them, the first side column and the first middle column form a first magnetic circuit, the first middle column and the second side column form a second magnetic circuit, the second side column and the second middle column form a third magnetic circuit, the second middle column and the third side column form a fourth magnetic circuit, and the third middle column and the first side column form a fifth magnetic circuit; the first winding, the first middle column and the first magnetic circuit, the second magnetic circuit form a first transformer, the second winding, the second middle column and the third magnetic circuit, the fourth magnetic circuit form a second transformer, and the third winding, the third middle column and the fifth magnetic circuit form an inductor.

2. The dual transformer main-resonant integrated device according to claim 1, characterized in that: The cross-sectional area of ​​the first center column is smaller than the cross-sectional area of ​​the second center column; the distance between the first center column and the air-cooling fan is smaller than the distance between the second center column and the air-cooling fan.

3. The dual transformer main-resonant integrated device according to claim 1, characterized in that: A gasket is provided in the gap between the second magnetic core and the first side column to form an air gap.

4. The dual transformer main-resonant integrated device according to claim 1, characterized in that: The device also includes an insulating base, on which six holes are arranged, and the six holes are respectively used for the two ends of the first winding, the two ends of the second winding, and the two ends of the third winding to output wires.

5. The dual transformer main-resonant integrated device according to claim 4, characterized in that: A friction surface is provided at a position where the base contacts the magnetic core.

6. The dual transformer main-resonant integrated device according to claim 1, characterized in that: The first center column and the second center column each include a plurality of magnetic sheets, and gaskets are provided in the gaps between the magnetic sheets to form air gaps.

7. The dual transformer main-resonant integrated device according to claim 1, characterized in that: Ventilation slots are provided in the first center column, the second center column and the third center column.

8. A manufacturing method for assembling a dual transformer main-harmonic integrated device as claimed in any one of claims 1 to 7, characterized in that: include: Winding a first winding, a second winding, and a third winding; Sequentially bonding magnetic sheets and gaskets based on the first half of the magnetic core to form the other half of the first middle column and the second middle column; The first winding sleeve is placed on the first center column of the first magnetic core of the first half, and the other half of the first center column is assembled on the other side of the first winding sleeve and fixed; the second winding sleeve is placed on the second center column of the first magnetic core of the first half, and the other half of the second center column is assembled on the other side of the second winding sleeve and fixed; the third winding sleeve is placed on the third center column of the pre-selected half, and the other half of the third center column is assembled on the other side of the third winding sleeve and fixed; The fixed center column and winding are assembled on the base, and the winding is led out and fixed according to the hole positions set on the base to obtain a dual transformer main-harmonic integrated device.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the production method according to claim 8 is implemented.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the production method according to claim 8 is implemented.

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