TWM624406U - A structure for increasing inductance value - Google Patents

Abstract

A structure for improving inductance value, which comprises: a magnetic core and a coil. The magnetic core is in the shape of an I-shape, and the magnetic core includes a central column. Two ends of the central column are respectively provided with a first flange and a second flange, and the length and width of the first flange are less than or equal to the first flange. two flanges; and the coil is provided with a first end and a second end, and the coil is wound on the magnetic core. Compared with the conventional structure, in addition to the central column, the present invention also has a first flange, because the larger the size and shape of the magnetic core is, the larger the inductance value of the inductance will be when the current passing through is the same. The inductance value is effectively increased by the arrangement of the first flange.

Description

A structure to increase inductance value

This creation is about an inductor, especially one that increases the size of the magnetic core to increase the inductance value.

For example, the Republic of China Publication No. 200826122 "Electronic Components and Related Methods", please refer to Figure 1 of the case, which has a flat-headed magnetic core, a conductive element and a terminal. In this case, only one end of the central column is provided with a flange, Not both ends of the central column are provided with flanges.

In an inductor, the size of the magnetic core will affect the inductance value. The larger the magnetic core, the larger the inductance value. On the contrary, the smaller the magnetic core, the smaller the inductance value. Therefore, there is still room for improvement in the conventional technology.

Therefore, how to improve the above-mentioned problems is the technical difficulty that the creator of this case intends to solve.

In view of the habit, the purpose of this creation is to solve and improve the problems and deficiencies existing in the habit.

To achieve the above purpose, the present invention provides a structure for increasing the inductance value, which includes: a magnetic core and a coil. The magnetic core has an I-shape, and the magnetic core includes a central column, two ends of the central column are respectively provided with a first flange and a second flange, and the first flange is The length and width of the coil are less than or equal to the second flange; and the coil is provided with a first end and a second end, and the coil is wound on the magnetic core.

Wherein, the shape of the central column is a rectangle, a polygon or a cylinder.

Wherein, the magnetic core is made of ferrite or soft magnetic material.

Wherein, the outer periphery of the magnetic core and the coil is covered with an encapsulation body.

Wherein, the magnetic core is made of manganese-zinc ferrite.

Wherein, the coil is a round wire or a flat wire.

Wherein, the first end and the second end of the coil protrude from the magnetic core to form two terminals.

Wherein, the first end and the second end of the coil protrude from the magnetic core and are respectively connected with a metal sheet to form two terminals.

Wherein, the coil is multi-turn and multi-layer.

Wherein, the coil is wound on the magnetic core in an α-winding structure.

In addition to the central column, the present invention also has a first flange. Since the size and shape of the magnetic core are larger, the inductance value of the inductance will be larger under the condition of the same current passing through. The setting effectively increases the inductance value. Moreover, the shape of the central column can be adjusted to be rectangular, polygonal or cylindrical according to actual needs.

1: Magnetic core

11: Center column

12: First flange

13: Second flange

2: Coil

21: First End

22: Second End

3: Package body

4: Metal sheet

[Fig. 1] is a schematic diagram of a structure for increasing the inductance value of the present invention.

[Fig. 2] A schematic diagram of the central column being a polygon.

[FIG. 3] A schematic diagram of the central column being cylindrical.

[FIG. 4] is a schematic diagram of a magnetic core and a coil surrounded by a package.

[Fig. 5] It is a schematic diagram of the first end and the second end of the coil directly forming two terminals.

[FIG. 6] is a schematic diagram of the first end and the second end of the coil connected to the metal sheet to form two terminals.

[FIG. 7] A schematic diagram of the coil being a flat wire.

[Fig. 8] A schematic diagram of a circular wire wound into multiple turns and layers.

[Fig. 9] It is a schematic diagram showing that the flat wire is wound into multiple turns and layers.

In order to make it easier for your examiners to understand the other features and advantages of this creation, as well as the effects achieved, this creation is hereby combined with the attached drawings, and the detailed descriptions are as follows:

Please refer to FIG. 1 , the present invention provides a structure for increasing the inductance value, which includes: a magnetic core 1 and a coil 2 .

The magnetic core 1 is in the shape of an I-shape. The magnetic core 1 includes a central column 11 . Two ends of the central column 11 are respectively provided with a first flange 12 and a second flange 13 . The length and width are less than or equal to the second flange 13 . Please refer to FIG. 1 , FIG. 2 and FIG. 3 , the shape of the central column 11 can be a rectangle (as shown in FIG. 1 ), a polygon (as shown in FIG. 2 ) or a cylindrical shape (as shown in FIG. 3 ). The magnetic core 1 is made of magnetic material. The magnetic core 1 can be ferrite or soft magnetic material. Ferrite is a non-metallic magnetic material. Ferrite is generally one or more metals mainly composed of iron. A composite oxide composed of elements, for example, the magnetic core 1 can be made of manganese-zinc ferrite.

The coil 2 is provided with a first end 21 and a second end 22 , and the coil 2 is wound on the magnetic core 1 . The coil 2 can be a round wire (as shown in FIG. 1 ) or a flat wire (as shown in FIG. 7 ). Referring to FIG. 4 , a package body 3 is covered on the periphery of the magnetic core 1 and the coil 2 , and the package body 3 can be made of plastic material or composite plastic. The package body 3 is formed with a predetermined size using injection molding technology. It is wrapped around the magnetic core 1 and the coil 2 to form the package 3, and only the overall size of the magnetic core 1 and the coil 2 is smaller than the package 3, and there is no need to limit the size of the magnetic core 1. The shape or the number of sets of the coil 2, the magnetic core 1 and the coil 2 can be protected by the package body 3, and the terminals (or electrodes) passing through the package body 3 can be fixed to prevent them from being bent or caused by external force. Broken, resulting in short circuit, abnormal conduction and other problems. Please refer to FIG. 5 , the first end 21 and the second end 22 of the coil 2 can extend from the magnetic core 1 and pass through the package body 3 to form two terminals (or electrodes), which means to directly connect the The first end 21 and the second end 22 of the coil 2 are regarded as terminals. Alternatively, as shown in FIG. 6 , the first end 21 and the second end 22 of the coil 2 protrude from the magnetic core 1 , and are respectively connected to a metal sheet 4 , passing through the package body 3 to form two terminals (or electrodes), which means that the first end 21 and the second end 22 of the coil 2 are respectively connected to the metal sheet 4, and the metal sheet 4 is regarded as a terminal. The terminals (or electrodes) are exposed on the package body 3 to be electrically connected with other circuit boards or other electronic components. The coil 2 can be multiple turns and multiple layers, for example, a round wire can be wound into multiple turns and multiple layers (as shown in FIG. 8 ) or a flat wire can be wound into multiple turns and multiple layers (as shown in FIG. 9 ). The coil 2 can also be wound on the magnetic core 1 by adopting an α winding structure, which is named after the shape of the winding structure resembles the letter α. The inductance value is proportional to the square of the number of turns, so winding multiple turns of the coil 2 on the magnetic core 1 can increase the inductance value. Likewise, winding multiple layers of the coil 2 on the magnetic core 1 can also increase the inductance value.

In addition to the central column 11, the present invention also has a first flange 12. Since the size and shape of the magnetic core 1 are the same, the larger the size and shape of the magnetic core 1, the greater the inductance value of the inductance. The provision of a flange 12 effectively increases the inductance value.

The above discussion is only a preferred embodiment of the present creation, and is not intended to limit the scope of implementation of the present creation; therefore, the equivalent shape, structure or combination changes without departing from the spirit and scope of the present creation should be Covered within the scope of the patent application for this creation.

1: Magnetic core

11: Center column

12: First flange

13: Second flange

2: Coil

21: First End

22: Second End

Claims (10)

A structure for increasing inductance value comprising: A magnetic core is I-shaped, the magnetic core includes a central column, two ends of the central column are respectively provided with a first flange and a second flange, and the length and width of the first flange are less than or equal to the the second flange; and A coil is provided with a first end and a second end, and the coil is wound on the magnetic core. The structure for increasing the inductance value according to claim 1, wherein the shape of the central column is a rectangle, a polygon or a cylinder. A structure for increasing inductance value according to claim 1, wherein the magnetic core is made of ferrite or soft magnetic material. The structure for increasing the inductance value as claimed in claim 1, wherein the magnetic core and the coil are covered with a package body. A structure for increasing the inductance value according to claim 1, wherein the magnetic core is made of manganese-zinc ferrite. A structure for increasing the inductance value according to claim 1, wherein the coil is a round wire or a flat wire. The structure for increasing the inductance value as claimed in claim 1, wherein the first end and the second end of the coil protrude from the magnetic core to form two terminals. The structure for increasing the inductance value as claimed in claim 1, wherein the first end and the second end of the coil extend from the magnetic core and are respectively connected to a metal sheet to form two terminals. The structure for increasing the inductance value according to claim 1, wherein the coil is multi-turn and multi-layer. The structure for increasing the inductance value according to claim 1, wherein the coil is wound on the magnetic core in an α-winding structure.

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