Differential mode inductor structure

Abstract

The utility model discloses a differential mode inductor structure, which relates to the technical field of differential mode inductors and comprises a seat plate, a first magnetic core and a second magnetic core are symmetrically and fixedly arranged on the upper portion of the seat plate, and winding portions are arranged at adjacent ends of the first magnetic core and the second magnetic core. Only one flat copper wire is pressed and formed through a mold, the top of the flat copper wire is integrally connected with a U-shaped part, the bottom of the flat copper wire is integrally connected with a pin, and the pin is inserted into a reserved insertion hole of a seat plate and fixed. Under the new design specification, manual assembly is basically not difficult, the limitation of traditional manual wire hooking and winding on power is broken through, and higher power can be achieved without an upper limit. Meanwhile, as the coil windings are reduced, the calorific value is obviously reduced, and the performance is more excellent. The differential mode inductor structure has the advantages of being simple in structure, convenient to assemble, large in power, little in heat emission and the like, can effectively meet the requirements of modern electronic equipment for high-power and high-performance differential mode inductors, and has wide application prospects.

Description

Technical Field

[0001] This utility model relates to the field of differential mode inductor technology, specifically to a differential mode inductor structure. Background Technology

[0002] In the field of electronics, inductors are important electronic components widely used in various circuits, such as filtering, oscillation, and delay. Differential-mode inductors, as a type of inductor, play a crucial role in suppressing electromagnetic interference and improving circuit stability.

[0003] Traditional differential-mode inductors have certain limitations in structure and manufacturing process. Existing differential-mode inductors were wound with a toroidal magnetic core, using multiple circular enameled wires wound manually. This manufacturing method could meet some basic application requirements in the early stages of differential-mode inductor development, but with the continuous development of electronic technology and the increasing performance requirements of electronic devices, its drawbacks have gradually become apparent, as follows:

[0004] 1. In applications requiring higher power, traditional manual wire winding methods face significant challenges. To achieve higher power, the traditional approach is to increase the number of copper wires. However, due to the limited space in the toroidal core and the limitations of manual operation, once the number of copper wires reaches a certain point, effective winding becomes difficult. On one hand, excessive copper wire makes the winding process extremely difficult, easily leading to wire crossings and loose winding, affecting inductor performance. On the other hand, manual handling of large amounts of copper wire can cause fatigue and errors, resulting in decreased winding quality or even failure to complete the winding process. Therefore, traditional manual wire winding methods cannot meet the manufacturing requirements of high-power differential mode inductors, limiting their application in high-performance electronic devices.

[0005] 2. Manual winding is not only difficult to manufacture high-power differential mode inductors, but also has low production efficiency. Because the entire process relies on manual operation, the winding speed is limited by the operator's skill level and physical strength, making large-scale, high-efficiency production difficult. Furthermore, manual winding is prone to quality problems, such as uneven winding and inconsistent turn counts, resulting in poor product consistency and stability, increasing production costs and the difficulty of quality control.

[0006] 3. Besides issues related to power and production efficiency, traditional differential-mode inductors also face difficulties in performance improvement. Because they are wound with a toroidal core and multiple circular enameled wires, the core structure and winding method are relatively fixed, making it difficult to further improve inductor performance, such as inductance and quality factor, by optimizing the core structure and winding method. Furthermore, gaps are prone to appearing during the winding process of the circular enameled wires, resulting in low core utilization and affecting inductor performance. Utility Model Content

[0007] To address the shortcomings of existing technologies, this invention provides a differential-mode inductor structure that solves the problems mentioned in the background section.

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a differential mode inductor structure, including a base plate, a first magnetic core and a second magnetic core are fixedly disposed on the upper part of the base plate, a conductor is wound around the outside of the first magnetic core and the second magnetic core, and the bottom end of the conductor passes through the base plate and extends to the bottom of the base plate.

[0009] Furthermore, the first magnetic core and the second magnetic core have the same structure and are symmetrically arranged. The adjacent ends of the first magnetic core and the second magnetic core are provided with a plurality of winding portions, and the conductor is wound around the outside of the winding portions on the same side.

[0010] Furthermore, the top of the conductor is integrally connected to a U-shaped part, and the bottom is integrally connected to a pin. The base plate has a pre-drilled socket, through which the pin extends to the bottom of the base plate, and the socket is compatible with the pin.

[0011] Furthermore, the conductor is configured to be flat.

[0012] Furthermore, the conductor is preferably made of copper or aluminum.

[0013] Furthermore, the U-shaped portion is adapted to the top of the winding portion.

[0014] This invention provides a differential-mode inductor structure. Compared with the prior art, it has the following advantages:

[0015] This differential-mode inductor structure, composed of two magnetic cores and formed using only a single flat copper wire through a mold, offers significant advantages in manual assembly. The process is virtually effortless, greatly improving production efficiency. More importantly, this design overcomes the limitations of traditional manual winding methods in terms of power output, enabling higher power outputs with no upper limit. This effectively meets the urgent needs of modern electronic devices for high-power differential-mode inductors. Furthermore, the reduced number of coil windings significantly reduces heat generation during operation, extending the inductor's lifespan and enhancing its performance, thus providing a strong guarantee for the stable operation of electronic devices. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the magnetic core structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the assembly structure of this utility model;

[0019] Figure 4 This is a half-sectional view of the assembled version of this utility model.

[0020] In the diagram: 1. Base plate; 11. Socket; 2. First magnetic core; 21. Winding part; 3. Second magnetic core; 4. Conductor; 41. U-shaped part; 42. Pin. Detailed Implementation

[0021] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a differential mode inductor structure, mainly including a base plate 1, a first magnetic core 2, a second magnetic core 3, and a conductor 4. The base plate 1 serves as the supporting foundation of the entire structure. The first magnetic core 2 and the second magnetic core 3 are symmetrically arranged on the upper part of the base plate 1. The conductor 4 is wound around the outside of the winding portion 21 on the same side of the first magnetic core 2 and the second magnetic core 3, and the bottom end of the conductor 4 penetrates the base plate 1 and extends below it for electrical connection with an external circuit.

[0023] The mounting plate 1 provides a platform for mounting and supporting the entire differential mode inductor structure. An insertion hole 11 is pre-drilled inside the mounting plate 1. The size and shape of the insertion hole 11 are adapted to the pin 42 so that the pin 42 can be smoothly inserted and fixed therein, realizing the electrical connection between the conductor 4 and the external circuit.

[0024] The first magnetic core 2 and the second magnetic core 3 have identical structures and are symmetrically arranged. Several winding portions 21 are provided at adjacent ends of the first magnetic core 2 and the second magnetic core 3. These winding portions 21 provide support and positioning for the winding of the conductor 4. The design of the winding portions 21 allows the conductor 4 to be wound tightly and orderly around its exterior, thereby improving the performance of the inductor.

[0025] Conductor 4 is designed with a flat shape, which helps reduce the resistance of the inductor and improve its conductivity. Conductor 4 is preferably made of copper or aluminum because copper and aluminum have good electrical and thermal conductivity, which can further reduce inductor losses. The top of conductor 4 is integrally connected to the U-shaped portion 41, and the bottom is integrally connected to the lead 42. The U-shaped portion 41 is adapted to the top of the winding portion 21, allowing for better fit on the winding portion 21 during assembly, ensuring the stability and reliability of conductor 4.

[0026] During assembly, the first magnetic core 2 and the second magnetic core 3 are symmetrically bonded to the upper part of the base plate 1. During the bonding process, it is necessary to ensure that the positions of the first magnetic core 2 and the second magnetic core 3 are accurate and symmetrical, and that the bonding between them and the base plate 1 is firm, so as to ensure the stability of the entire structure.

[0027] Then, the conductor 4 is bent to form a shape suitable for winding. Then, the bent conductor 4 is placed over the two winding portions 21 on the same side as the first magnetic core 2 and the second magnetic core 3. During the placement process, attention should be paid to the winding direction and number of layers of the conductor 4 to ensure that the conductor 4 is tightly and evenly wound on the winding portion 21, thereby improving the inductance and quality factor of the inductor.

[0028] After finally fitting conductor 4, insert pin 42 into the socket 11 of base plate 1. Since socket 11 and pin 42 are compatible, pin 42 can be smoothly inserted and initially fixed. Finally, apply glue to the connection between pin 42 and socket 11 to fix it, further enhancing the connection strength between pin 42 and base plate 1, and preventing pin 42 from loosening or falling off during use.

Claims

1. A differential mode inductance structure, characterized by The utility model relates to a seat plate (1), the upper portion of the seat plate (1) is fixedly provided with first magnetic core (2) and second magnetic core (3), the outside of first magnetic core (2) and second magnetic core (3) are commonly provided with conductor (4) winding, the bottom end of conductor (4) penetrates the seat plate (1), and extends to the below of the seat plate (1).

2. A differential mode inductor structure as claimed in claim 1, characterized in that The first magnetic core (2) and the second magnetic core (3) are symmetrical to each other, and the adjacent ends of the first magnetic core (2) and the second magnetic core (3) are provided with a plurality of winding portions (21), and the conductor (4) is wound outside the winding portions (21) on the same side.

3. A differential mode inductor structure according to claim 2, wherein, The top of the conductor (4) is integrally connected with a U-shaped portion (41), and the bottom is integrally connected with a pin (42), the inside of the seat plate (1) is provided with a jack (11), the pin (42) extends to the below of the seat plate (1) through the jack (11), and the jack (11) is matched with the pin (42).

4. The differential mode inductor structure of claim 1, wherein, The conductor (4) is in a flat shape.

5. A differential mode inductor structure as claimed in claim 4, characterized in that The conductor (4) is preferably made of copper or aluminum.

6. The differential mode inductance structure of claim 3, wherein, The U-shaped portion (41) is matched with the top of the winding portion (21).

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