Magnetic integrated high-frequency transformer

Abstract

The utility model discloses a kind of magnetic integrated high-frequency transformers, including inductance magnetic core and transformer magnetic core by bolt fixation, the both ends of bolt are provided with nut, the inside of inductance magnetic core is wound with primary winding, the outside of inductance magnetic core is wound with secondary winding setting;The primary winding and secondary winding are all set as water-passing winding;Double half-wave rectifier circuit for reducing secondary winding parasitic inductance is connected on the secondary winding.The utility model provides a kind of magnetic integrated high-frequency transformer, inductance magnetic core and transformer magnetic core are integrated together, the integration design of magnetic core is realized, winding layout is optimized, the volume of transformer is reduced, water-passing winding is used simultaneously, the energy consumption of transformer is reduced, the efficiency of electric energy conversion is improved, the risk such as insulation aging caused by excessively high temperature is reduced, prolongs transformer life.

Description

Technical Field

[0001] This utility model relates to the field of electronic power technology, and more specifically to a magnetically integrated high-frequency transformer. Background Technology

[0002] In power electronic equipment, high-frequency transformers are key components for power conversion and transmission. Traditional high-frequency transformers suffer from problems such as dispersed magnetic cores and unreasonable winding layouts, resulting in large equipment size, high energy loss, and difficulty in controlling electromagnetic interference. As power electronics technology develops towards higher frequencies, smaller sizes, and higher efficiency, higher requirements are placed on the integration and performance of high-frequency transformers.

[0003] Given that existing LLC resonant transformers mostly adopt independent designs for transformers and inductors, resulting in large size and complex wiring, the integration technology of magnetic components has become a critical research focus in the field of power electronics. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a magnetically integrated high-frequency transformer that realizes the integrated design of the magnetic core, optimizes the winding layout, reduces the size, reduces losses, and improves the power conversion efficiency, thereby solving the shortcomings of traditional high-frequency transformers.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0006] A magnetically integrated high-frequency transformer includes an inductor core and a transformer core fixed by bolts. Nuts are provided at both ends of the bolts. A primary winding is wound on the inner side of the inductor core, and a secondary winding is wound on the outer side of the inductor core. Both the primary and secondary windings are configured as water-permeable windings. A dual half-wave rectifier circuit for reducing the parasitic inductance of the secondary winding is connected to the secondary winding.

[0007] The technical solution is further optimized, and the water-passing winding includes a water pipe embedded in the center of the primary winding and the secondary winding, and the water pipe is connected to an external water source.

[0008] To further optimize the technical solution, the secondary winding is provided with a mounting block for connecting the dual half-wave rectifier circuit.

[0009] To further optimize the technical solution, the inductor core is an L-shaped inductor core.

[0010] To further optimize the technical solution, the transformer core is an EE type transformer core.

[0011] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0012] This utility model provides a magnetically integrated high-frequency transformer that integrates the inductor core and the transformer core together, realizing the integrated design of the core, optimizing the winding layout, reducing the size of the transformer, and using water-permeable windings to reduce the transformer's energy consumption, improve the efficiency of power conversion, reduce the risk of insulation aging caused by excessive temperature, and extend the transformer's lifespan. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the water-permeable winding of the primary winding of this utility model.

[0016] Among them: 1. Inductor core, 2. Transformer core, 3. Primary winding, 4. Secondary winding, 5. Mounting busbar, 6. Water pipe. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] A magnetically integrated high-frequency transformer, combined with Figures 1 to 3 As shown, it includes an inductor core 1 and a transformer core 2. The inductor core and the transformer core are fixed together by bolts. Nuts are provided at both ends of the bolts to fix the inductor core and the transformer core together, realizing the integration of the transformer primary side and the input inductor.

[0019] Inductor core 1 is an L-shaped inductor core, and transformer core 2 is an EE-type transformer core. The L-shaped inductor core and the EE-type transformer core work together to form an integrated magnetic circuit structure, reducing the number of cores and magnetic circuit losses, and improving magnetic energy utilization efficiency.

[0020] The inner side of the inductor core 1 is wound with a primary winding 3, and the outer side of the inductor core 1 is wound with a secondary winding 4. Both the primary winding 3 and the secondary winding 4 are water-cooled windings, which can effectively dissipate the working heat of the winding and adapt to high-frequency and high-current conditions. The primary and secondary windings are arranged according to the core structure to optimize electromagnetic coupling, improve power transmission efficiency, increase the power density of the transformer, reduce the use of copper material, and thus reduce the size of the transformer.

[0021] The water-passing winding includes a water pipe 6 embedded in the center of the primary winding 3 and the secondary winding 4. The water pipe is connected to an external water source to achieve cooling of the primary winding and the secondary winding.

[0022] A dual half-wave rectifier circuit is connected to the secondary winding 4 to reduce the parasitic inductance of the secondary winding. The dual half-wave rectifier circuit is composed of diodes.

[0023] The secondary winding 4 is equipped with a mounting bar 5, which is used to connect the dual half-wave rectifier circuit.

[0024] This invention integrates an L-shaped inductor core and an EE-type transformer core, shortening the magnetic circuit, reducing magnetic resistance and leakage flux, improving magnetic coupling efficiency, and reducing the size of the transformer. In practical applications, the transformer can be connected to a power electronic circuit, and the water-cooled winding can be connected to an external water-cooling circulation system to achieve high-frequency electrical energy conversion and transmission.

Claims

1. A magnetically integrated high-frequency transformer, characterized in that: It includes an inductor core (1) and a transformer core (2) fixed by bolts. Nuts are provided at both ends of the bolts. A primary winding (3) is wound on the inner side of the inductor core (1), and a secondary winding (4) is wound on the outer side of the inductor core (1). Both the primary winding (3) and the secondary winding (4) are configured as water-permeable windings. A double half-wave rectifier circuit for reducing the parasitic inductance of the secondary winding is connected to the secondary winding (4).

2. The magnetically integrated high-frequency transformer according to claim 1, characterized in that: The water-passing winding includes a water pipe (6) embedded in the center of the primary winding (3) and the secondary winding (4), and the water pipe is connected to an external water source.

3. The magnetically integrated high-frequency transformer according to claim 1, characterized in that: The secondary winding (4) is provided with a mounting block (5) for connecting the double half-wave rectifier circuit.

4. A magnetically integrated high-frequency transformer according to claim 1, characterized in that: The inductor core (1) is an L-shaped inductor core.

5. A magnetically integrated high-frequency transformer according to claim 1, characterized in that: The transformer core (2) is an EE type transformer core.

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