CN202695056U

CN202695056U - Inductor

Info

Publication number: CN202695056U
Application number: CN2012204179799U
Authority: CN
Inventors: 魏晋峰
Original assignee: SHENZHEN HIGHLIGHT ELECTRONIC CO Ltd
Current assignee: SHENZHEN HIGHLIGHT ELECTRONIC CO Ltd
Priority date: 2012-08-22
Filing date: 2012-08-22
Publication date: 2013-01-23
Anticipated expiration: 2022-08-22

Abstract

The utility model relates to an inductor which comprises a magnetic core. The magnetic core is of square shape and comprises two side columns and two magnetic stripes, wherein the two side columns are arranged at opposite sides, the two magnetic stripes are arranged at the opposite sides, the middles of the two side columns are both provided with gaps and air gaps which are evenly distributed, and the gaps and the air gaps together with coils are wound on the two side columns of the magnetic core. According to the inductor, through piecewise evenly-distributed air gaps, the inductor achieves small inductance, high power, small size and high precision.

Description

Inductor

Technical field

The utility model relates to electronic component, relates in particular to a kind of inductor.

Background technology

The normal ferrite magnetic core is adopted in the design of traditional inductor, this inductor is for reaching the small inductor amount, then must open very large air gap to FERRITE CORE, simultaneously in order to reach high-power, logical large electric current, then need again large volume, this volume larger in practice is difficult to accept, and can not obtain the higher inductance value of precision.

Therefore, how providing a kind of small inductor amount, high-power, large electric current, small size and high-precision inductor is technical issues that need to address.

The utility model content

In order to solve the problems of the prior art, the utility model provides a kind of inductor.

The utility model provides a kind of inductor, comprising: magnetic core, be " mouth " font, and two magnetic stripes that two side columns that comprise that the relative edge arranges and relative edge arrange, the centre of two side columns all arranges breach and equally distributed air gap; With coil, be wound on two side columns of magnetic core.

Inductor provided by the utility model has been realized the small inductor amount of inductor, high-power, large electric current, small size and high accuracy by the piecewise uniform air gap.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use among the embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the schematic diagram of the magnetic core of the utility model inductor.

Fig. 2 is the schematic diagram behind the magnetic core coiling of the utility model inductor.

Embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is carried out clear, complete description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.

Be illustrated in figure 1 as the schematic diagram of the magnetic core of inductor.This inductor comprises magnetic core 1 and coil 3, and magnetic core 1 is " mouth " font, two side columns that comprise that the relative edge arranges and two magnetic stripes of relative edge's setting, and the centre of two side columns all arranges breach and equally distributed air gap 2.Between two side columns and two magnetic stripes by fixing without shadow glue.Also comprise the extrusion coating paper that is arranged between magnetic core 1 and the coil 3.

In the present embodiment, this air gap 2 adopts segmentation air gap 2, two side columns adopt the mode of the little magnetic core of multistage interval air gap paper to form air-gap magnetic circuit, then use extrusion coating paper to do drum stand, be wound on the extrusion coating paper with stranded wire, then the magnetic core 1 that assembles is placed in the coil holder, two magnetic stripes cooperate the formation closed magnetic circuit with two side columns up and down at last, thereby are combined into the inductor of a hollow.

Air gap 2 evenly distributes, although, total air gap 2 length do not become, but each air gap 2 narrows down, the magnetic field of therefore leaking is less, improved greatly the situation of the high-frequency alternating magnetic field line of cut bag that leaks out, reduced eddy current loss, so coil 3 needn't be dodged air gap 2 positions, thereby greatly reduced the single turn length of winding, reduced small product size.Adopt simultaneously piecewise uniform air gap 2 can make the inductance value precision of product high, change little; Adopt the stranded wire coiling that the current capacity of inductor is strengthened greatly.

Be illustrated in figure 2 as the schematic diagram behind the magnetic core coiling of inductor.Coil 3 is wound on two side columns of magnetic core 1.

Inductor provided by the utility model has been realized the small inductor amount of inductor, high-power, large electric current, small size and high accuracy by piecewise uniform air gap 2.

To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model embodiment.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation of the spirit or scope that do not break away from the utility model embodiment, realize in other embodiments.Therefore, the utility model embodiment will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

It below only is the preferred embodiment of the utility model embodiment; not in order to limit the utility model embodiment; all within the spirit and principle of the utility model embodiment; any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the utility model embodiment.

Claims

1. an inductor is characterized in that, comprising:

Magnetic core is " mouth " font, two magnetic stripes that two side columns that comprise that the relative edge arranges and relative edge arrange, and the centre of described two side columns all arranges breach and equally distributed air gap; With coil, be wound on two side columns of described magnetic core.

2. inductor according to claim 1 is characterized in that: also comprise the extrusion coating paper that is arranged between described magnetic core and the coil.

3. inductor according to claim 1 is characterized in that: between described two side columns and described two magnetic stripes by fixing without shadow glue.