Special-shaped magnetic column structure of electric reactor

Abstract

A special-shaped magnetic column structure of an electric reactor is characterized by comprising a first magnetic column set composed of two cylindrical magnetic columns and a second magnetic column set composed of two semi-arc-shaped magnetic columns, the first magnetic column set and the second magnetic column set are arranged in an orthogonal mode, the two cylindrical magnetic columns are arranged oppositely, and the two semi-arc-shaped magnetic columns are arranged oppositely. According to the utility model, the magnetic columns forming the magnetic core are designed into special-shaped structures, so that the winding space and the magnetic circuit length are effectively increased, and the load resistance of the product is effectively enhanced; the magnetic core outer column is changed from a square to a circle, and the circumference of the circle is shortest under the condition that the sectional areas of the magnetic cores are equal, so that the copper wire consumption can be reduced, and the product cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of reactor technology, specifically to an irregularly shaped magnetic column structure for a reactor. Background Technology

[0002] High-frequency reactors are specifically designed for high-frequency filtering circuits. When connected in series in a high-frequency circuit, they suppress harmonic components.

[0003] It protects other electrical components for safe and reliable operation; it also reduces current ripple, ensuring continuous current and improving power supply quality when the inductance reaches a certain level. Existing reactors are basically composed of a core made up of three magnetic pillars. This core structure has the following problems: 1. Insufficient winding space, unable to accommodate the required number of turns; 2. The central pillar of the core is elliptical, requiring more copper wire for the same number of turns, resulting in higher product cost. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and provide a simple, low-leakage, and low-cost irregular magnetic column structure for reactors.

[0005] To achieve the above objectives, the technical solution of this utility model is: an irregular magnetic column structure for a reactor, characterized in that: it includes a first magnetic column group composed of two cylindrical magnetic columns and a second magnetic column group composed of two semi-arc magnetic columns, wherein the first magnetic column group and the second magnetic column group are orthogonally arranged, the two cylindrical magnetic columns are arranged opposite each other, and the two semi-arc magnetic columns are arranged opposite each other.

[0006] The cross-sectional area of ​​a cylindrical magnetic cylinder is equal to the sum of the cross-sectional areas of two semi-circular magnetic cylinders.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. This utility model designs the magnetic pillars that make up the magnetic core into an irregular structure, which effectively increases the winding space and magnetic circuit length, and effectively enhances the product's load resistance. By changing the outer pillar of the magnetic core from square to circular, the circular shape has the shortest circumference when the cross-sectional area of ​​the magnetic core is equal, which can reduce the amount of copper wire used and reduce product cost.

[0009] 2. This utility model limits the shape and cross-sectional area of ​​the magnetic pillars. The increased contact area between the two semi-circular magnetic pillars and the outer periphery of the coil reduces magnetic leakage and interference with surrounding parts. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 (3D view).

[0011] Figure 2This is a schematic diagram of the structure of this utility model. Figure 2 (Top view).

[0012] Figure 3 This is the DC superposition test curve of this utility model.

[0013] In the diagram: cylindrical magnetic column 1, magnetic column group 1 2, semi-circular magnetic column 3, and magnetic column group 2 4. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] See Figures 1-2 A reactor with an irregularly shaped magnetic column structure includes a first magnetic column group 2 composed of two cylindrical magnetic columns 1 and a second magnetic column group 4 composed of two semi-circular magnetic columns 3. The cross-sectional area of ​​one cylindrical magnetic column 1 is equal to the sum of the cross-sectional areas of the two semi-circular magnetic columns 3. The first magnetic column group 2 and the second magnetic column group 4 are orthogonally arranged, and the cylindrical magnetic columns 1 and the semi-circular magnetic columns 3 are centrally and symmetrically distributed. The two cylindrical magnetic columns 1 are arranged facing each other, and the two semi-circular magnetic columns 3 are arranged facing each other.

[0016] To verify the product performance, a coil was wound around the magnetic post and a yoke was installed. The product was then tested with a load of rated current DC13A. The temperature rise test data is shown in the table below. The temperature was maintained until it stabilized. As can be seen from the figure, the temperature rise test data are very low, indicating that the product has good temperature rise performance. .

[0017] See the product's DC superposition test curve. Figure 3 As can be seen from the superimposed curve, the inductance decay is very slight at rated DC13A, and the decay is only significant after 20A, indicating that the product has excellent load performance.

Claims

1. An irregularly shaped magnetic column structure for a reactor, characterized in that: It includes a first magnetic column group (2) consisting of two cylindrical magnetic columns (1) and a second magnetic column group (4) consisting of two semi-circular magnetic columns (3). The first magnetic column group (2) and the second magnetic column group (4) are orthogonally arranged. The two cylindrical magnetic columns (1) are arranged opposite each other, and the two semi-circular magnetic columns (3) are arranged opposite each other.

2. The irregularly shaped magnetic column structure of a reactor according to claim 1, characterized in that: The cross-sectional area of ​​a cylindrical magnetic column (1) is equal to the sum of the cross-sectional areas of two semi-circular magnetic columns (3).

Images