Multi-modal transformer

Abstract

The utility model provides a multi-mode transformer which is applied to the technical field of power electronics. The multi-mode transformer comprises two magnetic cores, each magnetic core comprises a preset number of magnetic column units, and the magnetic column units of the two magnetic cores are bonded; the preset number is greater than 1; the PCB unit is located between the two magnetic cores, a preset number of first containing areas are formed in the PCB unit, the PCB unit is arranged on any magnetic core, and the opposite magnetic column units in the two magnetic cores are arranged in the same first containing area at the same time. And magnetic integration of a plurality of transformer magnetic cores can be realized. According to the multi-mode transformer, magnetic flux density control in multi-transformer magnetic integration design can be optimized, the magnetic saturation phenomenon is reduced, the heat dissipation performance of the transformer is improved, the complexity of winding layout is simplified, and therefore the overall performance of the transformer is improved, and the service life of the transformer is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power electronics, especially to a multi-modal transformer. BACKGROUND

[0002] In recent years, with the rapid development of power electronics technology, the requirements for transformers are becoming higher and higher, especially in terms of miniaturization, high efficiency, and reduction of electromagnetic interference. In order to overcome the limitations of traditional transformers, magnetic integration technology has gradually become a research hotspot. Magnetic integration technology integrates multiple multi-modal transformers closely to form a complete magnetic circuit, thereby effectively improving the volume and weight, efficiency, electromagnetic interference, and manufacturing cost.

[0003] Although magnetic integration technology has made some progress, existing magnetic integration designs often have difficulty in accurately controlling the magnetic flux density, which can easily lead to magnetic saturation. Magnetic saturation not only affects the performance of the transformer, but also increases the nonlinear distortion and hysteresis loss. Meanwhile, the integrated design can limit the heat dissipation path of the transformer, leading to an increase in temperature rise. High temperature can affect the performance of the magnetic material and the life of the insulation material of the winding. Moreover, the winding layout of the integrated design is more complex, requiring precise control of the distribution and spacing of the windings to ensure uniform distribution of the magnetic flux between multiple magnetic columns, which increases the difficulty of design and manufacturing. SUMMARY

[0004] The utility model provides a kind of multi-modal transformer, to solve the existing magnetic integration design often has difficulty in accurately controlling the magnetic flux density, which can easily lead to magnetic saturation. Magnetic saturation not only affects the performance of the transformer, but also increases the nonlinear distortion and hysteresis loss. Meanwhile, the integrated design can limit the heat dissipation path of the transformer, leading to an increase in temperature rise. High temperature can affect the performance of the magnetic material and the life of the insulation material of the winding. Moreover, the winding layout of the integrated design is more complex, requiring precise control of the distribution and spacing of the windings to ensure uniform distribution of the magnetic flux between multiple magnetic columns, which increases the difficulty of design and manufacturing. The provided multi-modal transformer can realize the magnetic integration of multiple transformer magnetic cores.

[0005] In a first aspect, the utility model embodiment provides a kind of multi-modal transformer, comprising:

[0006] Two magnetic cores, each magnetic core includes a preset number of magnetic column units, and the magnetic column units of two magnetic cores are bonded;The preset number is greater than 1;

[0007] PCB unit, PCB unit is located between two magnetic cores, and a preset number of first accommodating areas are formed in PCB unit, PCB unit is set on any one magnetic core, and the opposite magnetic column units in two magnetic cores are simultaneously set in a first accommodating area.

[0008] In some embodiments, the preset number of magnetic column units comprises: a first side column, the first side column is arranged on one side of the first magnetic core; a second side column, the second side column is arranged on the other side of the first magnetic core opposite to the first side column; and a preset number of middle columns, the preset number of middle columns are arranged between the first side column and the second side column one by one; wherein the shape of the first accommodating area is matched with the shape of the middle column.

[0009] For example, the shape of the middle column is any one of a circle, a rectangle, an ellipse, and a diamond.

[0010] For example, the first side column forms a first bonding area, the second side column forms a second bonding area, and the first bonding area and the second bonding area of the first magnetic core are bonded with the first bonding area and the second bonding area of the second magnetic core, respectively.

[0011] It should be noted that, in some embodiments, the magnetic column unit further comprises at least one third side column, and each third side column is arranged between two adjacent middle columns.

[0012] It should be noted that, in some embodiments, the length of each middle column along a preset direction is greater than a preset length, and the preset direction is a direction in which the first side column faces the second side column.

[0013] It should be noted that, in some embodiments, the PCB unit further comprises: at least one second accommodating area, the shape of the second accommodating area is matched with the shape of the third side column, and each third side column is arranged in the second accommodating area.

[0014] It should be noted that, in some embodiments, each third side column forms a third bonding area, and the third bonding area of the second magnetic core is further bonded with the third bonding area of the first magnetic core; and / or each middle column forms a fourth bonding area, and the fourth bonding area of the second magnetic core is further bonded with the fourth bonding area of the first magnetic core.

[0015] In some embodiments, the fixing unit and the PCB unit each comprise a plurality of mounting holes, and the mounting holes of the fixing unit and the PCB unit in communication are fixedly connected with the mounting member, the first magnetic core, the second magnetic core, and the PCB unit through a fixing member.

[0016] In a second aspect, the embodiments of the present application provide a transformer, which comprises the multi-modal transformer provided in any of the embodiments of the present application.

[0017] The utility model discloses a kind of multimode transformers. The multimode transformer includes two magnetic cores, and each magnetic core is composed of multiple magnetic column units. The magnetic column units of two magnetic cores are connected by bonding mode, ensure the overall structure stability of multimode transformer. The number of the magnetic column unit of each magnetic core is preset and greater than 1, and the number of magnetic column unit is the modal number of transformer. Through the integrated design of multiple magnetic column units, the magnetic integration of multiple transformer magnetic cores can be realized. While PCB unit is located between two magnetic cores, it is designed with multiple first accommodating areas. PCB unit can be arranged on any one magnetic core, ensure the flexibility of installation. The opposite magnetic column units in two magnetic cores are simultaneously arranged in a first accommodating area, so that the uniform distribution of magnetic flux between multiple magnetic columns can be ensured.

[0018] The method provided further has the following beneficial effects

[0019] 1. Accurate control of magnetic flux density: through the integrated design of multiple magnetic column units, the magnetic flux density can be more accurately controlled, avoiding magnetic saturation problems. The uniform distribution of magnetic flux between multiple magnetic columns reduces the concentration of local magnetic flux density, further improving the stability and performance of the transformer.

[0020] 2. Reduce nonlinear distortion and hysteresis loss: the alleviation of magnetic saturation problems can significantly reduce nonlinear distortion and improve the signal transmission quality of the transformer. Uniform magnetic flux distribution also reduces hysteresis loss and improves the efficiency of the transformer.

[0021] 3. Improve heat dissipation performance: the design of the multimode transformer takes into account the heat dissipation path, which can effectively reduce the temperature rise. By reasonably distributing the winding and magnetic column unit, good heat dissipation effect is ensured, prolonging the service life of the magnetic material and winding insulation material.

[0022] 4. Simplify design and manufacturing difficulty: the design of PCB unit makes the distribution and spacing of magnetic column units more uniform, simplifying the design process. The bonding mode of magnetic column unit connection also reduces the manufacturing difficulty, improves the production efficiency and reliability.

[0023] 5. Enhance modularity and flexibility: the modular design of PCB unit and magnetic core increases the flexibility of design, making the multimode transformer can be easily applied to different transformer designs, improving the versatility and adaptability.

[0024] In summary, the multimode transformer provided by the present application effectively solves the problems of magnetic saturation, heat dissipation and manufacturing difficulty in existing magnetic integration design through the integrated design of multiple magnetic column units and reasonable winding layout, improving the performance and reliability of the transformer.

[0025] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the utility model. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a multimode transformer provided in one embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of a magnetic core provided in one embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of a PCB unit provided in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram showing the placement of the magnetic core and windings according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of another multimode transformer provided in one embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of another multimode transformer provided in one embodiment of the present invention.

[0033] Explanation of main components and symbols:

[0034] 10. Multimode transformer.

[0035] 11. Magnetic core; 111. First side post; 112. Second side post; 113. Middle post; 114. Third side post; 12. PCB unit; 121. First accommodating area; 122. Second accommodating area; 13. Fixing unit.

[0036] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0038] The flowcharts shown in the drawings are merely illustrative and do not necessarily include all contents and operations / steps, nor are they necessarily executed in the order described. For example, some operations / steps can be further divided, combined or partially merged, so the actual execution order can be changed according to actual conditions.

[0039] It should be understood that, in order to facilitate clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the terms "first", "second", etc. are used to distinguish the same or similar items with basically the same functions and effects. Those skilled in the art can understand that the terms "first", "second", etc. do not limit the number and execution order, and the terms "first", "second", etc. also do not necessarily mean different.

[0040] It should be understood that the terms used in the present application specification herein are merely for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, unless otherwise clear from the context, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0041] It should also be understood that the term "and / or" used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0042] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0043] In recent years, with the rapid development of power electronic technology, the requirements for transformers are becoming higher and higher, especially in terms of miniaturization, high efficiency and reduction of electromagnetic interference, etc. In order to overcome the limitations of traditional transformers, magnetic integration technology has gradually become a research hotspot. Magnetic integration technology integrates multiple multi-modal transformers closely to form a whole magnetic circuit, thereby effectively improving the volume and weight, efficiency, electromagnetic interference and manufacturing cost, etc.

[0044] Although the magnetic integration technology has made certain progress, the existing magnetic integration design often has difficulty in accurately controlling the magnetic flux density, which is prone to cause magnetic saturation. Magnetic saturation not only affects the performance of the transformer, but also increases the nonlinear distortion and hysteresis loss. At the same time, the integrated design may limit the heat dissipation path of the transformer, resulting in an increase in temperature rise. High temperature will affect the performance of the magnetic material and the life of the insulation material of the winding. And the winding layout of the integrated design is more complex, which requires precise control of the distribution and spacing of the winding to ensure uniform distribution of the magnetic flux between multiple magnetic columns, which increases the difficulty of design and manufacturing

[0045] To solve the above problems, please refer to Figures 1 to 6 , Figure 1 The structure diagram of the multi-modal transformer provided by an embodiment of the present application is shown in the figure. As shown in Figure 1 and Figure 2 , the multi-modal transformer 10 includes two magnetic cores 11 and a PCB unit 12. Each magnetic core 11 includes a preset number of magnetic column units (the magnetic column units are composed of components with serial numbers 111, 112, 113 and 114 in Figure 2 ), and the magnetic column units of the two magnetic cores 11 are bonded. The preset number is greater than 1. The PCB unit 12 is located between the two magnetic cores 11, and a preset number of first accommodating areas 121 are formed in the PCB unit 12. The PCB unit 12 is arranged on any one of the magnetic cores 11, and the opposite magnetic column units in the two magnetic cores 11 are arranged in one first accommodating area 121 at the same time.

[0046] Specifically, the present application provides a multi-modal transformer 10, which is designed to optimize the magnetic flux density control in the magnetic integration design of the transformer, reduce the magnetic saturation phenomenon, and improve the heat dissipation performance of the transformer and simplify the complexity of the winding layout, thereby improving the overall performance and service life of the transformer.

[0047] The multi-modal transformer 10 is composed of two main magnetic cores 11, and each magnetic core 11 contains a preset number of magnetic column units (the preset number is greater than 1, for example, 2, 3, 4, etc. Any number can be selected according to requirements). The magnetic column units of the two magnetic cores 11 are connected by bonding to form a compact whole. This multi-magnetic column design helps to evenly distribute the magnetic flux in multiple paths, thereby avoiding excessive magnetic flux density on a single magnetic column and reducing the risk of magnetic saturation.

[0048] As shown in Figure 3 and Figure 4 , the PCB unit 12 is arranged between the two magnetic cores 11, and a preset number of first accommodating areas 121 matching the number of magnetic columns are formed in the structure. Each first accommodating area 121 simultaneously accommodates two opposite magnetic column units, and the PCB unit 12 can be arranged on any one of the magnetic cores 11. The design of the PCB unit 12 allows the winding to be tightly wrapped around the magnetic column, ensuring efficient transmission of magnetic flux in the winding, while simplifying the layout and manufacturing process of the winding. Due to the increase in the number of magnetic columns, the magnetic flux can be evenly distributed among multiple magnetic columns, reducing the magnetic flux density of a single magnetic column and thus reducing the likelihood of magnetic saturation. The uniform distribution of magnetic flux also helps to reduce nonlinear distortion and hysteresis loss, improving the efficiency and performance of the transformer.

[0049] The magnetic flux is evenly distributed in multiple paths by the multi-magnetic column design, which reduces the magnetic flux density of a single magnetic column, thereby effectively reducing magnetic saturation and improving the stability and reliability of the transformer. Meanwhile, the even distribution of the magnetic flux reduces non-linear distortion and magnetic hysteresis loss, thereby improving the conversion efficiency of the transformer and reducing energy loss. The compact design and multi-magnetic column layout of the multi-modal transformer 10 help to increase the heat dissipation area and improve the heat dissipation efficiency, thereby reducing the impact of temperature rise on the performance of the magnetic material and the service life of the winding insulation material. The design of the corresponding PCB unit 12 makes the winding layout simpler and facilitates the control of the distribution and spacing of the winding, thereby reducing the manufacturing difficulty and cost and improving the production efficiency. By optimizing the magnetic flux distribution, reducing loss, and improving heat dissipation, the multi-modal transformer 10 significantly improves the overall performance of the transformer and is suitable for various power electronic devices and systems.

[0050] The multi-modal transformer 10 designed in the utility model solves the problems of magnetic saturation, high loss, and heat dissipation in traditional magnetic integration design by the multi-magnetic column layout and optimized winding design, thereby improving the overall performance and reliability of the transformer. This design is particularly suitable for high-frequency switching power supplies, power adapters, and other power electronic devices that require high efficiency and high stability.

[0051] For example, if a transformer for a high-frequency switching power supply is to be designed, the transformer is required to work at high power density and high efficiency. The traditional single-magnetic column design is difficult to control the magnetic flux density and is prone to magnetic saturation, while the provided multi-magnetic column design can effectively solve this problem. For example, two magnetic cores 11 with high magnetic permeability and low loss are selected, each magnetic core 11 containing 4 magnetic column units. The magnetic column units of the two magnetic cores 11 are bonded by high-performance adhesive to form an overall multi-modal transformer 10 with 8 magnetic columns. A PCB unit 12 is designed, which forms 4 first accommodating regions 121 in the PCB unit 12, each first accommodating region 121 accommodating a pair of opposite magnetic column units. The winding is tightly wrapped around the magnetic column to ensure effective transmission of the magnetic flux. Through precise manufacturing processes, the PCB unit 12 is fixed to any one of the magnetic cores 11, so that the opposite magnetic column units of the two magnetic cores 11 are arranged in a first accommodating region 121 at the same time, ensuring that the magnetic flux is evenly distributed among the multiple magnetic columns. Through the above design, the multi-modal transformer 10 exhibits excellent performance when working at high frequency, the control of the magnetic flux density is more accurate, the phenomenon of magnetic saturation is significantly reduced, the non-linear distortion and magnetic hysteresis loss are also effectively reduced, and the heat dissipation performance is improved, thereby ensuring the stable operation of the transformer at high power density and high efficiency.

[0052] In some embodiments, as shown in Figure 2 The preset number of magnetic column units includes Figure 2The preset number of the following is 2): First side post 111, which is disposed on one side of the first magnetic core 11; Second side post 112, which is disposed on the other side of the first magnetic core 11 opposite to the first side post 111; Preset number of middle posts 113, which are disposed one by one between the first side post 111 and the second side post 112; wherein, the shape of the first accommodating area 121 is adapted to the shape of the middle posts 113.

[0053] like Figure 2 As shown, the design of multiple center columns 113 enables the magnetic flux to be evenly distributed in multiple paths, reducing the magnetic flux density on each center column 113 and effectively reducing magnetic saturation. This improves the operating stability and reliability of the transformer under high power density. The uniform distribution of magnetic flux reduces nonlinear distortion and hysteresis loss, improving the transformer's conversion efficiency. It also improves energy transfer efficiency and reduces energy loss in the system. The design of multiple center columns 113 increases the heat dissipation area, allowing heat to be distributed more evenly across the multiple center columns 113, improving heat dissipation efficiency. This reduces the impact of temperature rise on the performance of magnetic materials and the lifespan of winding insulation materials, extending the transformer's service life. The first receiving area 121 in the PCB unit 12 is adapted to the shape of the center columns 113, ensuring that the windings can be tightly wrapped around the center columns 113, simplifying the winding layout and manufacturing process. This design simplifies the manufacturing process, reduces production costs and difficulty, and improves production efficiency. By optimizing magnetic flux distribution, reducing losses, and improving heat dissipation, the multimode transformer 10 of Embodiment A significantly improves the overall performance of the transformer. This design is particularly suitable for high-frequency switching power supplies, power adapters, and other power electronic devices that require high efficiency and high stability.

[0054] In summary, this invention, through its multi-column 113 layout and compatible PCB unit 12 design, effectively solves the common problems of magnetic saturation, high loss, and heat dissipation in traditional magnetic integrated designs, thereby improving the overall performance and reliability of the transformer. This design is particularly suitable for applications requiring high power density and high efficiency, such as high-frequency switching power supplies.

[0055] For example, when the multimode transformer 10 is used in a high-frequency transformer, the number of columns 113 can be multiple intermediate columns 113 (e.g., 3, 4, or 5 or more) to improve the uniformity of magnetic flux distribution. The PCB unit 12 is a multilayer winding to meet the requirements of high-frequency applications.

[0056] For example, when the multimode transformer 10 is applied to a conventional transformer, the number of terminals 113 can be reduced, such as two terminals 113, which is suitable for lower frequency applications. The PCB unit 12 has single-layer or double-layer windings to meet basic transformer requirements.

[0057] For example, the shape of the limb 113 can be any one of circular, rectangular, oval, diamond.

[0058] The circular limb 113 can have higher magnetic flux density and better magnetic permeability, suitable for applications requiring high magnetic flux density. The rectangular limb 113 increases the heat dissipation area, suitable for applications requiring optimized heat dissipation path, helping to reduce temperature rise. The oval limb 113 can provide magnetic flux density and heat dissipation performance between circular and rectangular, suitable for applications requiring a balance between magnetic flux density and heat dissipation requirements. The diamond-shaped limb 113 is suitable for designs requiring specific winding layout, which can better control the spacing and distribution between windings, improving the uniformity of magnetic flux. Various different limb 113 shapes can also be designed according to actual needs, and the embodiments of the present application do not limit this.

[0059] Different shapes of limb 113 can better adapt to different magnetic field distributions, making the magnetic flux more uniform between each limb 113. This helps to reduce the magnetic flux density on individual limbs 113 and reduce the risk of magnetic saturation. Rectangular and oval limbs 113 can increase the heat dissipation area and improve the heat dissipation efficiency. This helps to reduce temperature rise and reduce the impact of high temperature on the performance of magnetic materials and the service life of winding insulation materials, extending the service life of the transformer.

[0060] The first accommodation area 121 in the PCB unit 12 is adapted to the shape of the limb 113, ensuring that the winding can be tightly wrapped around the limb 113, simplifying the winding layout and manufacturing process. This design makes the manufacturing process simpler, reduces production cost and difficulty, and improves production efficiency.

[0061] By selecting different shapes of limb 113 and optimizing the winding design, the multi-modal transformer 10 can perform excellent performance in different application scenarios. For example, the circular limb 113 can improve the magnetic flux density, the rectangular limb 113 can optimize the heat dissipation, and the oval and diamond-shaped limbs 113 can balance the magnetic flux density and heat dissipation requirements, thereby improving the overall performance and reliability of the transformer.

[0062] The above embodiments provide different shapes of limb 113, so that the multi-modal transformer 10 can better adapt to the needs of various application scenarios. Different shapes of limb 113 can achieve magnetic flux density control, heat dissipation optimization and winding layout simplification in different applications, thereby improving the overall performance and reliability of the transformer. This design is particularly suitable for high-frequency switching power supplies, power adapters and other power electronic devices that require high efficiency and high stability.

[0063] It should be noted that in some embodiments, if a multi-modal transformer 10 is to be designed for a specific application scenario, the shape of the middle column 113 needs to be selected according to the requirements of the application scenario and specific design parameters. For example, for applications that require high magnetic flux density but have limited space, a circular middle column 113 can be selected; for applications that require optimization of the heat dissipation path, a rectangular or elliptical middle column 113 can be selected; for applications that require a specific winding layout, a diamond-shaped middle column 113 can be selected. Two identical magnetic cores 11 are selected, each containing 6 magnetic column units. The first magnetic core 11 is provided with a first side column 111 on one side and a second side column 112 on the other side. Between the first side column 111 and the second side column 112, four middle columns 113 are arranged in sequence, and the shape of the middle column 113 is determined according to the above selection. High-performance adhesives are used to bond the magnetic column units of the two magnetic cores 11 together to form a whole multi-modal transformer 10 containing 12 magnetic columns. The two first side columns 111 are oppositely arranged, and the two second side columns 112 are also oppositely arranged, and the four pairs of middle columns 113 are aligned and bonded one by one. A PCB unit 12 is designed, in which four first accommodating areas 121 are formed, and the shape of each first accommodating area 121 is adapted to the shape of a middle column 113. For example, if the middle column 113 is circular, the first accommodating area 121 should also be designed as a circle; if the middle column 113 is rectangular, the first accommodating area 121 should be designed as a rectangle, and so on. In each first accommodating area 121, the primary winding and the secondary winding are installed, ensuring that the winding is tightly wrapped around the middle column 113. The distribution and spacing of the winding need to be precisely controlled to ensure that the magnetic flux is evenly distributed among the multiple middle columns 113.

[0064] For example, the first side column 111 forms a first bonding area, the second side column 112 forms a second bonding area, and the first bonding area and the second bonding area of the first magnetic core 11 are bonded with the first bonding area and the second bonding area of the second magnetic core 11, respectively.

[0065] By designing the first and second adhesive regions on the first and second side pillars 111 and 112, high precision of the alignment of the two magnetic cores 11 can be ensured. This precise alignment helps to reduce the asymmetry between the magnetic cores 11, improve the uniform distribution of magnetic flux, and reduce the risk of magnetic saturation. The dedicated adhesive region design can provide a larger adhesive area, increasing the connection strength between the two magnetic cores 11. This helps to ensure that the multi-modal transformer 10 does not separate due to external forces or high temperatures during use, improving the stability and reliability of the module. By increasing the adhesive area, the heat dissipation efficiency of the multi-modal transformer 10 can be improved. The increased adhesive area makes the heat conduction path more effective, helping to reduce the temperature rise and reduce the impact of high temperature on the performance of the magnetic material and the service life of the winding insulation material. The dedicated adhesive region design makes the bonding process simpler and more controllable, reducing the difficulty of alignment and bonding. This helps to improve production efficiency and reduce manufacturing costs. Through precise alignment and enhanced connection strength, the overall performance and reliability of the multi-modal transformer 10 are significantly improved. It is suitable for high-frequency switching power supplies, power adapters, and other power electronic devices that require high efficiency and high stability.

[0066] In summary, by designing dedicated adhesive regions on the first and second side pillars 111 and 112, precise alignment and firm connection of the two magnetic cores 11 are achieved. At the same time, in each first accommodation region 121, the primary and secondary windings are installed, ensuring that the windings are tightly wrapped around the middle pillars 113. The distribution and spacing of the windings need to be precisely controlled to ensure that the magnetic flux is evenly distributed among the multiple middle pillars 113. This design not only improves the uniform distribution of magnetic flux and the stability of the multi-modal transformer 10, but also enhances the heat dissipation performance and simplifies the manufacturing process, thereby significantly improving the overall performance and reliability of the transformer. It is suitable for a variety of high-demand application scenarios.

[0067] It should be noted that in some embodiments, the magnetic column unit further comprises at least one third side pillar 114, each third side pillar 114 being arranged between two adjacent middle pillars 113.

[0068] The introduction of the third side pillar 114 makes the magnetic flux path more complex and uniform, helping to reduce local magnetic flux density and reduce the risk of magnetic saturation. This is particularly important for transformers that need to work at high power density, as it can improve their working stability and reliability. The arrangement of the third side pillar 114 not only optimizes the magnetic flux path, but also enhances the structural stability of the multi-modal transformer 10. By adding support points between adjacent middle pillars 113, the module's vibration and deformation under high frequency and large current conditions can be reduced, improving the module's mechanical strength. At the same time, the introduction of the third side pillar 114 increases the contact area of the multi-modal transformer 10, helping to improve heat dissipation efficiency. More contact points and support points allow heat to be more evenly conducted, reducing local temperature rise and extending the service life of the transformer.

[0069] The second accommodation area 122 on the third side column 114 can provide more winding layout options, allowing designers to adjust the position and shape of the windings according to specific requirements. This helps optimize the distribution of windings, reduce coupling losses between windings, and improve overall efficiency. The dedicated third side column 114 and corresponding bonding area design makes the manufacturing process simpler and more controllable, reducing the difficulty of alignment and bonding. This helps improve production efficiency and reduce manufacturing costs.

[0070] In summary, by setting at least one third side column 114 between two adjacent middle columns 113, the magnetic flux path and structural stability are optimized, the heat dissipation performance is improved, and the flexibility of winding layout is increased, thereby significantly improving the overall performance and reliability of the transformer. This design is particularly suitable for high-performance power supply equipment, high-frequency switching power supplies, and other power electronic devices that require high efficiency and high stability.

[0071] It should be noted that in some embodiments, the length of each middle column 113 along the predetermined direction is greater than the predetermined length, and the predetermined direction is the direction corresponding to the first side column 111 towards the second side column 112.

[0072] By increasing the length of the middle column 113 (e.g., the predetermined length is 10 mm, and in actual design, the length of each middle column 113 is increased to 12 mm, ensuring that the middle column 113 has sufficient extension in the predetermined direction), more space can be provided for winding layout, allowing the windings to be wrapped more tightly around the middle column 113. This helps improve space utilization, reduce the distance between windings, optimize the magnetic flux path, and reduce the risk of magnetic saturation. The increase in the length of the middle column 113 optimizes the magnetic flux path, reducing the concentration of magnetic flux in the magnetic core 11. This helps improve the uniform distribution of magnetic flux, reduce local magnetic saturation, and improve the working stability and reliability of the transformer. Increasing the length of the middle column 113 provides more surface area for heat dissipation, improving heat dissipation efficiency. This helps reduce temperature rise, reduces the impact of high temperature on the performance of magnetic materials and the service life of winding insulation materials, and prolongs the service life of the transformer. The increase in the length of the middle column 113 makes the overall structure of the multi-modal transformer 10 more stable. The increased length provides more support points, reducing the vibration and deformation of the module under high frequency and large current conditions, improving the mechanical strength of the module. By optimizing the length of the middle column 113, the design of the PCB unit 12 is more simplified and flexible. This helps simplify the manufacturing process, improve production efficiency, and reduce manufacturing costs.

[0073] In summary, by optimizing the length of the middle columns 113, the length of each middle column 113 along the preset direction is greater than the preset length, thereby improving the space utilization, optimizing the magnetic flux path, enhancing the structural stability, improving the heat dissipation performance, and simplifying the design and manufacturing process. This design is particularly suitable for high-power-density power supply equipment, high-frequency switching power supply, and other power electronic equipment that requires high efficiency and high stability, significantly improving the overall performance and reliability of the transformer.

[0074] It should be noted that in some embodiments, the PCB unit 12 further comprises at least one second accommodating area 122, the shape of the second accommodating area 122 is matched with the shape of the third edge column 114, and each third edge column 114 is arranged in the second accommodating area 122.

[0075] The arrangement of the second accommodating area 122 enables the third edge column 114 to be accurately positioned in the PCB unit 12, thereby optimizing the magnetic flux path. The introduction of the third edge column 114 reduces the concentration of magnetic flux between adjacent middle columns 113, which helps to improve the uniform distribution of magnetic flux and reduce the risk of magnetic saturation. By arranging the third edge column 114 between adjacent middle columns 113 and fixing it in the second accommodating area 122, the structural stability of the multi-modal transformer 10 is enhanced. As an additional support point, the third edge column 114 reduces the vibration and deformation of the module under high frequency and large current conditions, thereby improving the mechanical strength of the module.

[0076] At the same time, the introduction of the second accommodating area 122 increases the contact area of the multi-modal transformer 10, which helps to improve the heat dissipation efficiency. More contact points and support points enable heat to be more evenly conducted, reducing local temperature rise and prolonging the service life of the transformer. The second accommodating area 122 provides more options for winding layout, and designers can adjust the position and shape of the winding according to specific needs, optimize the distribution of the winding, reduce the coupling loss between windings, and improve the overall efficiency. The dedicated second accommodating area 122 design makes the manufacturing process simpler and more controllable, reducing the difficulty of alignment and bonding. This helps to improve production efficiency and reduce manufacturing costs.

[0077] In summary, by adding the second accommodating area 122 in the PCB unit 12 and fixing the third edge column 114 in the second accommodating area 122, the magnetic flux path and structural stability are optimized, the heat dissipation performance is improved, and the flexibility of winding layout is increased, thereby significantly improving the overall performance and reliability of the transformer. This design is particularly suitable for high-performance power supply equipment, high-frequency transformers, and other power electronic equipment that requires high efficiency and high stability.

[0078] It should be noted that in some embodiments, each third edge column 114 forms a third bonding area, and the third bonding area of the second magnetic core 11 is also bonded with the third bonding area of the first magnetic core 11; and / or each middle column 113 forms a fourth bonding area, and the fourth bonding area of the second magnetic core 11 is also bonded with the fourth bonding area of the first magnetic core 11.

[0079] By forming a special bonding area on each third edge column 114 and each middle column 113, and tightly bonding the corresponding part of the second magnetic core 11, the overall structural stability of the multi-modal transformer 10 is enhanced. This design reduces the vibration and deformation of the magnetic core 11 under high frequency and large current conditions, and improves the mechanical strength of the module. The precise alignment and firm bonding of the third bonding area and / or the fourth bonding area optimizes the magnetic flux path and reduces the concentration of magnetic flux in the magnetic core 11. This helps to improve the uniform distribution of magnetic flux, reduce local magnetic saturation, and improve the working stability and reliability of the transformer. At the same time, the increase of the bonding area provides more contact area for heat dissipation, improving the heat dissipation efficiency. By ensuring the tight bonding of the bonding area, heat can be more evenly conducted, reducing local temperature rise and prolonging the service life of the transformer. The special third and / or fourth bonding area design provides more options for winding layout, and designers can adjust the position and shape of the winding according to specific needs, optimize the distribution of the winding, reduce the coupling loss between windings, and improve the overall efficiency. The design of the bonding area makes the manufacturing process simpler and more controllable, reducing the difficulty of alignment and bonding. This helps to improve production efficiency and reduce manufacturing costs.

[0080] In summary, by forming a special third and / or fourth bonding area on each third edge column 114 and / or each middle column 113, and tightly bonding the corresponding part of the second magnetic core 11, the overall structural stability and magnetic flux path optimization of the multi-modal transformer 10 are enhanced, further improving the heat dissipation performance and flexibility of winding layout, thereby significantly improving the overall performance and reliability of the transformer.

[0081] In some embodiments, as shown in Figure 4 and Figure 5 , it further comprises a fixing unit 13, the fixing unit 13 and the PCB unit 12 each comprise a plurality of mounting holes, and the mounting holes of the fixing unit 13 and the PCB unit 12 in communication are fixedly connected with the mounting member, the first magnetic core 11, the second magnetic core 11 and the PCB unit 12 through a fixing member.

[0082] As shown in Figure 4 and Figure 5As shown, both the fixing unit 13 and the PCB unit 12 include multiple mounting holes (circular holes connecting them). Ensure the mounting hole positions on the fixing unit 13 correspond to those on the PCB unit 12 by marking the positions on the fixing unit 13. Align the fixing unit 13 and the PCB unit 12, ensuring the mounting hole positions are consistent. Select screws or bolts of appropriate size and length as fasteners, ensuring they can pass through the mounting holes and secure the fixing unit 13 and the PCB unit 12. Pass the screws or bolts sequentially through the mounting holes of the fixing unit 13 and the PCB unit 12, ensuring each mounting hole is tightly aligned. Use appropriate tools (such as a wrench or screwdriver) to tighten the screws or bolts one by one, ensuring the fixing unit 13 and the PCB unit 12 are securely connected. Confirm that the mounting holes of the fixing unit 13 and the PCB unit 12 are fully aligned and that the screws or bolts are correctly installed. Confirm that each screw or bolt is tightened in place without any looseness. A torque wrench can be used to ensure the screws or bolts are tightened to the specified torque. Secure the mounting unit 13, first magnetic core 11, second magnetic core 11, and PCB unit 12 together using the mounting holes to ensure a tight connection between all components. Check the overall securing effect to ensure there is no looseness or misalignment. Tap and vibration tests can be performed to ensure a stable connection between all components.

[0083] The mounting holes connecting the fixing unit 13 and the PCB unit 12 enable a fixed connection between the fixing unit 13, the first magnetic core 11, the second magnetic core 11, and the PCB unit 12. This method significantly improves the overall assembly's stability, simplifies the installation process, facilitates maintenance and replacement, enhances stability, and improves the consistency and standardization of the production process. Optimized structural design improves the overall assembly's compactness and space utilization, making it an effective means of enhancing the performance of the multimode transformer 10.

[0084] In some embodiments, such as Figure 3 As shown, PCB unit 12 is an assembly containing transformer windings, typically consisting of a frame and windings (coils) (not shown). A first accommodating cavity and a second accommodating cavity are formed in PCB unit 12.

[0085] The utility model discloses a multimode transformer 10. The multimode transformer 10 includes two magnetic cores 11, and each magnetic core 11 is composed of multiple magnetic column units. The magnetic column units of the two magnetic cores 11 are connected by bonding, ensuring the overall structural stability of the multimode transformer 10. The number of magnetic column units of each magnetic core 11 is preset and greater than 1. Through the integrated design of multiple magnetic column units, the magnetic integration of multiple transformer magnetic cores 11 can be realized. Meanwhile, the PCB unit 12 is located between the two magnetic cores 11, which is designed with multiple first accommodating areas 121. The PCB unit 12 can be arranged on any one of the magnetic cores 11, ensuring the flexibility of installation. The opposite magnetic column units in the two magnetic cores 11 are arranged in a first accommodating area 121 at the same time, which can ensure that the magnetic flux is evenly distributed among multiple magnetic columns.

[0086] Furthermore, the provided method has the following beneficial effects

[0087] 1. Accurate control of magnetic flux density: Through the integrated design of multiple magnetic column units, the magnetic flux density can be more accurately controlled, avoiding magnetic saturation problems. The uniform distribution of magnetic flux among multiple magnetic columns reduces the concentration of local magnetic flux density, further improving the stability and performance of the transformer.

[0088] 2. Reduce nonlinear distortion and hysteresis loss: The alleviation of magnetic saturation problems can significantly reduce nonlinear distortion and improve the signal transmission quality of the transformer. Uniform magnetic flux distribution also reduces hysteresis loss, improving the efficiency of the transformer.

[0089] 3. Improve heat dissipation performance: The design of the multimode transformer 10 considers the heat dissipation path, which can effectively reduce the temperature rise. By reasonably distributing the winding and magnetic column unit, good heat dissipation effect is ensured, prolonging the service life of the magnetic material and winding insulation material.

[0090] 4. Simplify design and manufacturing difficulty: The design of the PCB unit 12 makes the distribution and spacing of the magnetic column units more uniform, simplifying the design process. The bonding of the magnetic column units also reduces the manufacturing difficulty, improving the production efficiency and reliability.

[0091] 5. Enhance modularity and flexibility: The modular design of the PCB unit 12 and the magnetic core 11 increases the flexibility of the design, making the multimode transformer 10 easily applicable to different transformer designs, improving the versatility and adaptability.

[0092] In summary, the provided multimode transformer 10 solves the problems of magnetic saturation, heat dissipation, and manufacturing difficulty in existing magnetic integration designs through the integrated design of multiple magnetic column units and reasonable winding layout, improving the performance and reliability of the transformer.

[0093] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "mount", "link", "connect" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect. Can be mechanical connection, also can be electrical connection. Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element internal communication or two element mutual action relation. For ordinary skilled in the art, can understand the concrete meaning of the above-mentioned term in the utility model according to specific circumstances.

[0094] The above disclosure provides many different implementations or examples to realize the different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described in the above. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various implementations and / or settings discussed. In addition, the utility model provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0095] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A multi-modal transformer, characterized by, include: Two magnetic cores, each of which includes a predetermined number of magnetic pillar units, and the magnetic pillar units of the two magnetic cores are bonded together; The preset quantity is greater than 1; the two magnetic cores include a first magnetic core and a second magnetic core; A PCB unit is located between two magnetic cores. A predetermined number of first accommodating areas are formed in the PCB unit. The PCB unit is disposed on any one of the magnetic cores, and the opposing magnetic pillar units in the two magnetic cores are simultaneously disposed in one of the first accommodating areas.

2. The multi-modal transformer of claim 1, wherein, The preset number of magnetic column units include: The first side post is disposed on one side of the first magnetic core; The second side post is disposed on the other side of the first magnetic core, opposite to the first side post; A predetermined number of central pillars are provided, and the predetermined number of central pillars are arranged one by one between the first side pillar and the second side pillar; The shape of the first accommodating area is adapted to the shape of the central column.

3. The multi-modal transformer of claim 2, wherein, The shape of the central column can be any one of the following: circular, rectangular, elliptical, or rhomboid.

4. The multimode transformer according to claim 2, characterized in that, The first side post forms a first bonding area, and the second side post forms a second bonding area. The first bonding area and the second bonding area of ​​the first magnetic core are bonded to the first bonding area and the second bonding area of ​​the second magnetic core, respectively.

5. The multimode transformer according to claim 4, characterized in that, The magnetic column unit also includes at least one third side column, each of which is disposed between two adjacent middle columns.

6. The multimode transformer according to claim 5, characterized in that, The length of each central column along a preset direction is greater than a preset length, where the preset direction is the direction from which the first side column faces the corresponding second side column.

7. The multimode transformer according to claim 5, characterized in that, The PCB unit also includes: At least one second receiving area, the shape of which is adapted to the shape of the third side post, and each of the third side posts is disposed in the second receiving area.

8. The multimode transformer according to claim 5, characterized in that, Each third post forms a third bonding area, and the third bonding area of ​​the second magnetic core is also bonded to the third bonding area of ​​the first magnetic core.

9. The multimode transformer according to claim 5, characterized in that, Each of the central pillars forms a fourth bonding area, and the fourth bonding area of ​​the second magnetic core is also bonded to the fourth bonding area of ​​the first magnetic core.

10. The multimode transformer according to claim 1, characterized in that, Also includes: The fixing unit and the PCB unit both include multiple mounting holes. The mounting holes of the fixing unit and the PCB unit are connected to each other through fasteners to fix the mounting components, the first magnetic core, the second magnetic core and the PCB unit.

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