Magnetic core structure and inductor

Abstract

The utility model provides a magnetic core structure and an inductor, the magnetic core structure comprises a magnetic core body, the magnetic core body comprises an upper plate body, a lower plate body and two magnetic columns, each of the upper plate body and the lower plate body is provided with two grooves, one groove of the upper plate body is opposite to one groove of the lower plate body, the other groove of the upper plate body is opposite to the other groove of the lower plate body, and the two magnetic columns are arranged on the upper plate body and the lower plate body. One end of the magnetic column is arranged in the groove of the upper plate body, and the other end of the magnetic column is arranged in the groove of the lower plate body; the grooves are formed in the upper plate body and the lower plate body respectively, the magnetic columns can extend into the grooves, and compared with a structure that two U-shaped magnetic cores are fixed in the prior art, the magnetic columns are arranged in the grooves, so that the situation that the upper plate body or the lower plate body cannot be aligned can be avoided, and the performance loss of the magnetic cores is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of inductors, and in particular to a magnetic core structure and an inductor. Background Art

[0002] Magnetic core refers to a sintered magnetic core metal oxide composed of a mixture of various iron oxides. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. Manganese-zinc ferrite has the characteristics of high magnetic permeability and high magnetic flux density, and has the characteristics of low loss. Nickel-zinc ferrite has extremely high resistivity and low magnetic permeability of less than a few hundred. Ferrite cores are used in coils and transformers of various electronic devices.

[0003] For example, the technology disclosed in Chinese patents with application numbers CN201810044983.7 and CN201710478435.0, that is, the magnetic core structure in the prior art, includes a first magnetic core body, a second magnetic core body and a connector with a U-shaped structure. The two ends of the first magnetic core body are connected to the two ends of the second magnetic core body by the connector to form a magnetic core structure. Usually, the two ends of the first magnetic core body and the two ends of the second magnetic core body are fixed by colloid. In actual application, when aligning the first magnetic core body with the second magnetic core body, there will inevitably be an error, and the error is more than 5%. When the first magnetic core body and the second magnetic core body cannot be accurately aligned, the performance of the magnetic core is reduced. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present application provides a magnetic core structure and an inductor.

[0005] A magnetic core structure disclosed in the present application includes: a magnetic core body, the magnetic core body includes an upper plate body, a lower plate body and two magnetic columns, the upper plate body and the lower plate body each have two grooves, one of the grooves of the upper plate body is arranged opposite to one of the grooves of the lower plate body, the other groove of the upper plate body is arranged opposite to the other groove of the lower plate body, one end of the magnetic column is arranged in the groove of the upper plate body, and the other end is arranged in the groove of the lower plate body.

[0006] Preferably, the inner diameter of the groove is matched with the outer diameter of the magnetic column, and the magnetic column and the groove are fixed by glue dispensing.

[0007] Preferably, the cross-sections of the upper plate body and the lower plate body are both elliptical, and the upper plate body and the lower plate body have the same size.

[0008] Preferably, the cross-sections of the upper plate body and the lower plate body are both circular, and the radius of the upper plate body and the lower plate body are the same.

[0009] Preferably, the cross-sections of the upper plate body and the lower plate body are both directional, and the upper plate body and the lower plate body have the same size.

[0010] Preferably, the magnetic column is perpendicular to the upper plate and the lower plate respectively.

[0011] Preferably, the two grooves of the upper plate body are respectively located at opposite ends of the upper plate body.

[0012] According to another aspect of the utility model, the present application also provides an inductor, which includes a magnetic core structure.

[0013] The beneficial effect of the present application is that grooves are respectively provided on the upper plate and the lower plate, and the magnetic column can extend into the groove. Compared with the structure of fixing two U-shaped magnetic cores in the prior art, placing the magnetic column into the groove can avoid the situation where the upper plate or the lower plate cannot be aligned, thereby avoiding the loss of magnetic core performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 A three-dimensional diagram of the magnetic core structure in the embodiment;

[0016] Figure 2 An exploded view of a magnetic core structure in an embodiment;

[0017] Figure 3 FIG. 4 is a three-dimensional diagram of an inductor in an embodiment.

[0018] Reference numerals:

[0019] 1- Magnetic core body;

[0020] 11-upper plate; 12-lower plate; 13-magnetic column; 14-groove. DETAILED DESCRIPTION

[0021] The following will disclose multiple embodiments of the present application with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present application. In other words, in some embodiments of the present application, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0022] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, in the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0024] In order to further understand the application content, features and effects of the present application, the following embodiments are cited and described in detail with reference to the accompanying drawings.

[0025] Embodiment 1

[0026] See also Figures 1 to 3 The magnetic core structure in this example is used in an inductor. The magnetic core structure includes a magnetic core body 1. The magnetic core body 1 includes an upper plate body 11, a lower plate body 12 and two magnetic pillars 13. The upper plate body 11 and the lower plate body 12 both have two grooves 14. One of the grooves 14 of the upper plate body 11 is arranged opposite to one of the grooves 14 of the lower plate body 12, and the other groove 14 of the upper plate body 11 is arranged opposite to the other groove 14 of the lower plate body 12. One end of the magnetic pillar 13 is arranged in the groove 14 of the upper plate body 11, and the other end is arranged in the groove 14 of the lower plate body 12. The shape of the groove 14 is adapted to the cross-sectional shape of the magnetic pillar 13.

[0027] The magnetic core structure in the present application has the advantage of reducing magnetic core loss. Grooves 14 are respectively provided on the upper plate 11 and the lower plate 12, and the magnetic column 13 can extend into the groove 14. Compared with the structure in the prior art where two U-shaped magnetic cores are fixed, placing the magnetic column 13 into the groove 14 can avoid the situation where the upper plate 11 or the lower plate 12 cannot be aligned, thereby avoiding the loss of magnetic core performance.

[0028] Furthermore, the inner diameter of the groove 14 is matched with the outer diameter of the magnetic column 13, and the magnetic column 13 and the groove 14 are fixed by glue dispensing.

[0029] Specifically, the inner diameter of the groove 14 is slightly larger than the outer diameter of the magnetic column 13 , or the inner diameter of the groove 14 is equal to the outer diameter of the magnetic column 13 .

[0030] Furthermore, the cross-sections of the upper plate body 11 and the lower plate body 12 are both elliptical, and the upper plate body 11 and the lower plate body 12 are the same size, or the cross-sections of the upper plate body 11 and the lower plate body 12 are both circular, and the radius of the upper plate body 11 and the lower plate body 12 are the same, or the cross-sections of the upper plate body 11 and the lower plate body 12 are both directional, and the upper plate body 11 and the lower plate body 12 are the same size.

[0031] In this way, the window utilization of the inductor can be improved within a limited space and can be applied to different scenarios.

[0032] Furthermore, the magnetic column 13 is perpendicular to the upper plate 11 and the lower plate 12 .

[0033] In this way, the number of coil turns that can be accommodated by the upper plate 11 and the lower plate 12 increases.

[0034] Furthermore, the two grooves 14 of the upper plate body 11 are respectively located at two opposite ends of the upper plate body 11 .

[0035] In this way, coil entanglement can be avoided.

[0036] Embodiment 2

[0037] The inductor in this example includes a magnetic core structure.

[0038] In summary, grooves 14 are respectively provided on the upper plate 11 and the lower plate 12, and the magnetic column 13 can extend into the groove 14. Compared with the structure in which two U-shaped magnetic cores are fixed in the prior art, placing the magnetic column 13 into the groove 14 can avoid the situation where the upper plate 11 or the lower plate 12 cannot be aligned, thereby avoiding the loss of magnetic core performance.

[0039] The above is only the implementation mode of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A magnetic core structure, characterized in that: include: A magnetic core body (1), the magnetic core body (1) comprising an upper plate body (11), a lower plate body (12) and two magnetic columns (13), the upper plate body (11) and the lower plate body (12) both having two grooves (14), one of the grooves (14) of the upper plate body (11) being arranged opposite to one of the grooves (14) of the lower plate body (12), the other groove (14) of the upper plate body (11) being arranged opposite to the other groove (14) of the lower plate body (12), one end of the magnetic column (13) being arranged in the groove (14) of the upper plate body (11), and the other end being arranged in the groove (14) of the lower plate body (12).

2. The magnetic core structure according to claim 1, characterized in that: The inner diameter of the groove (14) is matched to the outer diameter of the magnetic column (13), and the magnetic column (13) and the groove (14) are fixed by glue dispensing.

3. The magnetic core structure according to claim 1, characterized in that: The upper plate body (11) and the lower plate body (12) are both elliptical in cross section, and the upper plate body (11) and the lower plate body (12) have the same size.

4. The magnetic core structure according to claim 1, characterized in that: The cross-sections of the upper plate body (11) and the lower plate body (12) are both circular, and the upper plate body (11) and the lower plate body (12) have the same radius.

5. The magnetic core structure according to claim 1, characterized in that: The cross-sections of the upper plate body (11) and the lower plate body (12) are both directional, and the upper plate body (11) and the lower plate body (12) have the same size.

6. The magnetic core structure according to claim 1, characterized in that: The magnetic column (13) is perpendicular to the upper plate (11) and the lower plate (12).

7. The magnetic core structure according to claim 6, characterized in that: The two grooves (14) of the upper plate body (11) are respectively located at two opposite ends of the upper plate body (11).

8. An inductor, characterized in that: The invention comprises the magnetic core structure described in any one of claims 1 to 7.

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