CN209029210U - A Novel Ferrite Core Structure - Google Patents

Abstract

The utility model relates to magnetic core technical field more particularly to a kind of novel ferrite core structures.The technical solution adopted in the utility model is: including rectangle magnetic core bottom plate, the center that the upper end of the magnetic core bottom plate is located at left and right directions is equipped with a rectangle magnetic core stem, the upper end of the magnetic core bottom plate is respectively arranged on the left side and the right side integrally formed rectangle side leg structure, the end face outside of the side leg structure and the end face outside of the magnetic core bottom plate are parallel to each other, the front of the positive and magnetic core bottom plate of the magnetic core stem is in the same plane, the leg circular arc boss when leg structure is equipped with integrally formed arc-shaped by the position of rear end close to the end face of magnetic core bottom plate side of left and right two.The utility model has the advantages that: it can be realized and becoming smaller in size whole in the case where guaranteeing that the sum of magnetic flux area is constant, to realize the purpose of miniaturization, keep its application range in use wider, the stability in use process is more reliable.

Description

A Novel Ferrite Core Structure

technical field

The utility model relates to the technical field of magnetic cores, in particular to a novel ferrite magnetic core structure.

Background technique

At present, miniaturization and flattening are the general trends in the development of the entire electronic products. As the main magnetic component, the power transformer must also be flattened. At present, EFD, DS and EER magnetic cores are the main components used in flattening power transformers. Core type.

DS and EER types are matched with vertical bobbins, and the winding height is limited, which cannot meet the requirements of multi-winding design of electronic transformers, while EFD types are matched with horizontal bobbins, which can meet the requirements of multi-winding design of electronic transformers, but in the same Within the range of the plane space, the effective magnetic flux area is small, which affects the power output of the electronic transformer. In order to improve the power output capability and adapt to the requirements of multiple windings, the structure of the magnetic core needs to be modified.

Utility model content

The purpose of this utility model is to provide a new type of ferrite core structure, which adds a new connection structure to the original core structure, so that the overall size of It becomes smaller, so as to achieve the purpose of miniaturization, so that it has a wider range of applications during use and more reliable stability during use.

The technical scheme of the present utility model is as follows:

A new type of ferrite core structure, including a rectangular magnetic core bottom plate, the upper end of the magnetic core bottom plate is located at the center of the left and right directions with a rectangular magnetic core column, and the left and right sides of the upper end of the magnetic core bottom plate are respectively provided. There is an integrally formed rectangular side leg structure, the outer end face of the side leg structure and the outer end face of the magnetic core base plate are parallel to each other, and the front face of the magnetic core column and the front face of the magnetic core base plate are on the same plane, It is characterized in that: the position of the end face of the left and right side leg structures close to the side of the magnetic core bottom plate and the rear end is provided with an integrally formed circular arc-shaped side leg circular arc boss, and the side leg circular arc boss is The central axis of the cylinder is on the straight line intersecting the center position of the magnetic core bottom plate in the left and right direction and the front surface, the upper end face of the side leg arc boss and the upper end face of the side leg structure are on the same plane, and the side leg arc boss is on the same plane. The rear end face of the leg arc boss is on the same plane as the rear end face of the side leg structure, and an arc is provided at the position where the leg arc boss is connected to the rear end face of the magnetic core bottom plate. The shape transition connects the arc structure.

Further, the width of the magnetic core leg is smaller than the width of the magnetic core bottom plate.

The beneficial effects of the present utility model:

The utility model adds a new connection structure to the original magnetic core structure, so that the overall size can be made smaller under the condition that the sum of the magnetic flux areas is kept unchanged, thereby realizing the purpose of miniaturization, making it The application range is wider during use, and the stability during use is more reliable.

Description of drawings

Fig. 1 is the front schematic view of the utility model;

Fig. 2 is the top view schematic diagram of the utility model;

Fig. 3 is the front schematic diagram of the original structure;

Fig. 4 is the top view schematic diagram of the original structure;

In the figure: 1. Magnetic core bottom plate, 2. Side leg structure, 3. Magnetic core core column, 4. Side leg arc boss, 5. Transition connection arc structure.

Detailed ways

As shown in FIG. 1 to FIG. 4 , a new type of ferrite core structure includes a rectangular magnetic core base plate 1 , and a rectangular magnetic core column 3 is arranged at the upper end of the magnetic core base plate 1 at the center position in the left-right direction. The left and right sides of the upper end of the magnetic core base plate 1 are respectively provided with an integrally formed rectangular side leg structure 2. The outer end face of the side leg structure 2 is parallel to the outer end face of the magnetic core base plate 1. The front surface of the column 3 and the front surface of the magnetic core base plate 1 are on the same plane, and it is characterized in that: the end faces of the left and right side leg structures 2 close to the magnetic core base plate 1 are provided with integral molding at the rear end. The circular arc-shaped side-leg circular-arc boss 4, the cylindrical central axis of the side-leg circular-arc boss 4 is on the straight line intersecting between the left-right direction center position of the magnetic core bottom plate 1 and the front side, and the side-leg circular The upper end face of the arc boss 4 and the upper end face of the side leg structure 2 are on the same plane, and the rear side end face of the side leg circular arc boss 4 and the rear side end face of the side leg structure 2 are on the same plane. A circular arc transition connection circular arc structure 5 is provided at the position where the side leg circular arc boss 4 is connected with the rear end face of the magnetic core bottom plate 1 . According to the analysis of the magnetic circuit, the sum of the magnetic flux areas of the two legs should be equal to the magnetic flux area of the core column. Therefore, the size of B on the side close to the core column is constant. In order to ensure the area of the side legs, the size of A is relatively large (the area of the side legs A=D*(A-B)). This takes up a lot of space.

In the new structure, some improvements are made to the side and leg structure, as shown in the new structure diagram in the following figure,

The starting point of the arc in the side leg is: the size C of the edge of the magnetic core on one side of the core column, and the area of the side leg can be approximately calculated as D*(A-B)+(B-G)*(D-C). To achieve the same side and leg area, the A size can be reduced to a certain size, thereby saving the space occupied by the electronic transformer in the circuit board. The new structure of this kind of magnetic core is named ECD type.

Preferably, the width of the magnetic core leg 1 is smaller than the width of the magnetic core base plate 2, and the width of the magnetic core leg 3 is smaller than the width of the magnetic core base plate 1, which is more convenient when winding, and when using The function is more stable and the effect is better.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements or replacements can be made. These improvements or Replacement should also be regarded as the protection scope of the present invention.

Claims (2)

1. A novel ferrite core structure, comprising a rectangular magnetic core base plate (1), the upper end of the magnetic core base plate (1) is located at the center of the left-right direction with a rectangular magnetic core column (3), so The left and right sides of the upper end of the magnetic core base plate (1) are respectively provided with an integrally formed rectangular side leg structure (2), and the outer end face of the side leg structure (2) and the outer end face of the magnetic core base plate (1) are mutually parallel, the front surface of the magnetic core column (3) and the front surface of the magnetic core bottom plate (1) are on the same plane, and it is characterized in that: the left and right side leg structures (2) are close to the magnetic core bottom plate (1) The position of the end face on one side near the rear end is provided with an integrally formed circular arc-shaped side leg circular arc boss (4), and the cylindrical central axis of the side leg circular arc boss (4) is the magnetic core bottom plate (1) On the line intersecting between the center position in the left-right direction and the front, the upper end surface of the side leg arc boss (4) and the upper end surface of the side leg structure (2) are on the same plane, and the side leg arc boss (4) is on the same plane. The rear end face of the leg arc boss (4) and the rear end face of the side leg structure (2) are on the same plane, and the side leg arc boss (4) and the magnetic core bottom plate (1) A circular arc-shaped transition connection circular arc structure (5) is arranged at the position where the rear side end face is connected. 2. A new type of ferrite core structure according to claim 1, characterized in that: the width of the magnetic core leg (3) is smaller than the width of the magnetic core bottom plate (1).