Transformer structure with double-integrated magnetic circuit structure

Abstract

The utility model relates to a transformer structure with a double-integrated magnetic circuit structure, and aims to solve the problems of large size, high loss and large occupied area of a traditional transformer in high-power application. According to the transformer, the functions of the two transformers are integrated in one magnetic core through the integrated design, so that the overall size is reduced, the power density is improved, and magnetic field interference and energy loss are reduced. The transformer comprises a magnetic core of an integrated structure, two middle columns are arranged on the bottom face of the magnetic core, and two identical coils are installed on the two middle columns respectively. The turn ratio of the coil is determined according to working conditions, the number of turns of the primary side is the same as that of turns of the secondary side, and it is ensured that primary side input current forms a counteracting magnetic circuit on the magnetic core middle column. A base is arranged at the bottom end of the magnetic core and used for fixing pins of the coil, and the magnetic core is connected with an external circuit through the pins. Through the integrated design, the size can be reduced by about 1 / 3 under the same power, the power density is improved, and the production cost is reduced by about 30%.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field especially relates to a transformer structure of magnetic circuit structure double integration. BACKGROUND

[0002] In the traditional transformer design, multiple transformers need to be installed and connected independently, and in the application scenario of multiple parallel input and output, a large circuit board area is occupied, and due to the existence of independent magnetic circuit and multiple components, high energy loss and large volume are caused. This not only wastes space, but also affects the efficiency and cost of the system for the device that needs compact layout and high power output. SUMMARY

[0003] The utility model discloses a kind of transformer structures of magnetic circuit structure double integration, and its through integrated magnetic core and wire package design, in relatively small space, realize higher power output, reduce volume, loss and reduce production cost simultaneously.

[0004] The technical scheme provided by the utility model is as follows:

[0005] Magnetic core design: the transformer uses a magnetic core of integrated structure. The bottom surface of the magnetic core is provided with two middle columns, and two identical wire packages are installed on the two middle columns respectively. The magnetic core design is compact, which can effectively reduce the space occupation and optimize the magnetic field distribution.

[0006] Wire package design: the two wire packages installed on each middle column have the same number of turns to ensure that the original side input current forms a counteracting magnetic circuit on the middle column of the magnetic core, reducing magnetic field interference and loss. The wire package determines the turns ratio and safety dimension according to the working condition, which is suitable for different input current and output voltage.

[0007] Base and pin design: in order to facilitate installation, the bottom end of the magnetic core is provided with a base for fixing the wire package pin. The bottom end of the base is provided with a through hole to ensure that the pin is stable and reliably connected to the external circuit. The pin design is firm and durable, which ensures the contact performance in long-term use.

[0008] Volume and cost advantage: under the condition of the same power, the volume of the transformer is reduced by about 1 / 3, and the power density is significantly improved. Due to the use of integrated design, the production cost of the transformer with the same function can be saved by about 30%. ADVANTAGEOUS EFFECTS

[0009] The utility model discloses a transformer design through integrated magnetic circuit structure has the following beneficial effects: integrated design combines the two transformers needed by tradition for one, significantly reduces the space occupation on the circuit board, adapts the high power application of limited space, reduces the volume and optimizes the magnetic circuit structure, and the transformer can provide higher power output under the same volume, improves the power density, reduces the magnetic field interference and the volume in the traditional transformer, makes energy loss to be minimum, improves the work efficiency of transformer, and integrated design makes the production process more simple, not only saves the material cost, but also reduces the workload of assembly and test, thereby reduces the overall production cost, and the transformer structure is especially suitable for the high power application scene of multiple parallel input and output, can realize multiple input and output channels in the limited space, satisfies the demand of complex system.

[0010] The utility model is suitable for various application scenes needing high power output and limited space, for example, power system, industrial automation equipment, communication equipment, power electronic equipment, intelligent power grid and the like field.

[0011] The above description is only the summary of the technical scheme of the utility model, in order to can more clearly understand the technical means of the utility model, can be implemented according to the content of specification, and in order to let the above and other purposes, characteristics and advantages of the utility model can be more obvious and easy to understand, the following preferred embodiments are shown, and the detailed description is shown as follows with the drawings. DETAILED DESCRIPTION

[0012] Figure 1 The utility model discloses an integrated magnetic core appearance structure schematic diagram of transformer structure of magnetic circuit structure double integration is proposed;

[0013] Figure 2 The utility model discloses an integrated magnetic core appearance structure schematic diagram of transformer structure of magnetic circuit structure double integration is proposed

[0014] Figure 3 The utility model discloses a product pin connection structure schematic diagram of transformer structure of magnetic circuit structure double integration is proposed;

[0015] Figure 4 The utility model discloses a finished product appearance structure schematic diagram of transformer structure of magnetic circuit structure double integration is proposed;

[0016] Figure 5 The utility model discloses a finished product appearance structure schematic diagram of transformer structure of magnetic circuit structure double integration is proposed.

[0017] In the drawing: 1, magnetic core;2, middle column;3, wire package;4, base. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0019] In embodiment 1, the specific implementation method of the transformer with double-integrated magnetic circuit structure will be described in detail in combination with drawings. Through the following description, the structure and implementation process of the utility model can be clearly understood.

[0020] 1. Magnetic core structure design

[0021] The transformer of the utility model adopts an integrated magnetic core structure. The magnetic core 1 is made of a material with high magnetic permeability, such as silicon steel sheet, ferrite, etc., to ensure effective conduction of magnetic flux and reduce magnetic energy loss. The magnetic core bottom surface is provided with two middle columns 2, and one completely identical wire package 3 is installed on each middle column. The advantage of this design is that it can integrate the functions of two transformers in a limited space, and through the ingenious magnetic circuit design, the volume and loss in the traditional transformer are reduced.

[0022] Wire package design

[0023] The wire package 3 installed on each middle column 2 is composed of two parts: primary side and secondary side. The primary side is used to connect the input power, and the secondary side is used to connect the load. The turns ratio of the wire package is designed according to the working conditions to ensure that the transformer can work stably under different input currents and output voltages. The number of turns of the wire package is designed to meet the safety requirements to ensure the safe operation of the transformer under high voltage or current conditions.

[0024] In order to ensure that the transformer has high power density, the wire package 3 uses high-efficiency wire with low resistance and good insulation performance. In addition, the wire package 3 also adopts a tighter winding method, which maximizes the reduction of the volume and weight of the transformer.

[0025] Base structure

[0026] In order to facilitate the installation and connection of the pins, the magnetic core 1 bottom end is provided with a base 4. The base 4 is used to fix the pins of the wire package 3, and the base 4 has multiple holes or pin slots to facilitate the passing and fixing of the pins. The structure of the base is not only stable, but also can effectively avoid the loosening of the pins of the wire package 3 due to vibration or external force.

[0027] The base 4 is made of high-temperature-resistant material to ensure that the transformer does not overheat under long-time high-power operation. In addition, the base 4 also considers the requirement of heat dissipation, and the design of the base can help dissipate heat, improve the service life and stability of the transformer.

[0028] Magnetic circuit design

[0029] The magnetic circuit design of the transformer fully considers the requirements of parallel input and output. The number of turns of the two wire packages 3 installed on each middle column 2 is the same, to ensure that the magnetic circuits formed by the primary input current on the magnetic core middle column can cancel each other out. Through this design, the magnetic field interference of the transformer can be greatly reduced, and the working efficiency and stability of the transformer can be improved.

[0030] In the magnetic core 1, through reasonable magnetic circuit arrangement, two groups of wire packages 3 can realize effective energy transmission in the same magnetic core, while avoiding the problem of mutual interference of magnetic fields between multiple transformers in traditional transformers.

[0031] Pin connection

[0032] On the base 4, there are holes (or slots) for pin connection. These holes are designed to match the size of standard electronic component pins, ensuring that the pins can pass through the base stably and connect with the circuit. The design of the pins also takes into consideration the anti-vibration performance to prevent poor contact caused by equipment vibration.

[0033] The pins of each wire package 3 pass through the bottom end of the base 4 and are specially treated to ensure their electrical performance and mechanical strength. The pin material is selected to be highly conductive metal, and the surface is treated to prevent corrosion, to ensure that there is no problem of reduced conductivity during long-term use.

[0034] Function and performance test

[0035] The transformer in this embodiment can be tested according to different working conditions to verify its performance. The test content includes:

[0036] Input and output voltage: Test the stability and accuracy of the output voltage of the transformer under different input voltages.

[0037] Power density: Measure the power density of the transformer to ensure that it meets the requirements of high-power applications.

[0038] Temperature rise test: Perform long-term high-power operation on the transformer to check whether its temperature rise exceeds the safe working range.

[0039] Efficiency test: Measure the energy conversion efficiency of the transformer to ensure that it has high energy efficiency in a high-power environment.

[0040] This transformer is suitable for high-power scenarios with multiple parallel inputs and outputs. For example, in a power system, multiple parallel transformers can jointly provide high-power output to adapt to different load requirements. In such applications, the integrated design of the transformer can significantly reduce the volume of the overall device, reducing manufacturing and installation costs.

[0041] In addition, the transformer can also be widely used in industrial automation, communication equipment, power electronic equipment and other fields, especially suitable for limited space and high power output equipment.

[0042] Since the transformer generates a certain amount of heat during operation, heat dissipation design is very critical. The base 4 adopts a heat dissipation design, and the material of the base has good thermal conductivity, which can help the transformer dissipate heat. In order to further improve the safety, the transformer also considers the over-temperature protection, overload protection and other safety measures during design, to ensure that the transformer can automatically disconnect the circuit under abnormal working conditions, to avoid damage.

[0043] Through the detailed description of the above embodiments, the design principle and implementation process of the present application can be clearly understood. The present application provides a transformer solution with smaller volume, higher power density and better efficiency, which is suitable for various high-power application scenarios and has good market application prospect.

[0044] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A transformer structure of a magnetic circuit structure double integration, characterized by, It comprises a magnetic core (1), the bottom of which is provided with two middle columns (2), each of which is installed with two identical wire packages (3), and the bottom end of the magnetic core (1) is provided with a base (4) for fixing the pins of the wire packages (3), and the pins of the wire packages (3) all penetrate the bottom end of the base (4).

2. The transformer structure with double integrated magnetic circuit structure according to claim 1, wherein the wire package (3) comprises a primary side and a secondary side, and the turn ratio is determined by the working condition.

3. The transformer structure with double integrated magnetic circuit structure according to claim 1 or 2, wherein the number of turns of the two wire packages (3) installed on the middle column (2) is the same, so that the primary side input current forms a counteracting magnetic circuit on the middle column of the magnetic core.

4. The transformer structure with double integrated magnetic circuit structure according to claim 1, wherein the base (4) is used for fixing the pins of the wire packages (3), and the bottom end of the base (4) is provided with a penetrating hole for accommodating the pins of the wire packages (3).

5. The transformer structure with double integrated magnetic circuit structure according to claim 1, wherein the magnetic core (1) adopts an integrated structure.

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