CN207199428U

CN207199428U - Inductor improved structure

Info

Publication number: CN207199428U
Application number: CN201721018348.9U
Authority: CN
Inventors: 姜万顺
Original assignee: ELYTONE ELECTRONIC Co Ltd
Current assignee: ELYTONE ELECTRONIC Co Ltd
Priority date: 2017-08-15
Filing date: 2017-08-15
Publication date: 2018-04-06
Anticipated expiration: 2027-08-15

Abstract

The utility model is a kind of inductor improved structure, and the inductor includes a coil and an iron core, and the coil encircling is on the iron core, and its one end has one first connection end, and the other end has a second connection end, it is characterised in that：Four angles of the iron core are respectively arranged with a unfilled corner, by the setting of the unfilled corner, when the coil encircling is when on the iron core, the bending angle that the coil is bent every time can be effectively reduced, further reduce the stress to core interior so that the inductance value attenuation of inductor is reduced.

Description

Inductor improved structure

Technical field

The utility model is a kind of inductor, and espespecially a kind of coil for reducing inductor caused by core interior to answering Power, further such that the inductor improved structure of the inductance value attenuation reduction of inductor.

Background technology

Inductor is a kind of electronic circuit component, and it can produce electromotive force because of the change of electric current in electronic circuit, from And resist the change of electric current.If inductor does not have electric current by the way that inductor can prevent electric current from flowing through it；If inductor has Current flowing mistake, then it can maintain electric current constant when electronic circuit disconnects.

With the development of inductor, inductor has a variety of aspects at present, wherein, the permeability of toroidal inductor It is relevant with the structure of core interior.Iron core can form by ceramic material, iron oxide or by other non-magnetic raw material sintering.Cause This, core interior is made up of the crystalline solid of many, adds non-magnetic megohmite insulant to prevent iron core from becoming monoblock iron, is produced Huge effect of eddy current inductive effect.Firm ready-made iron core can have a relative permeability μ, be formed when copper cash is wound in iron core Coil can produce internal stress to iron core, internal stress conference is squeezed iron core, promote core interior to crystallize between crystallization Gap reduces, and reduces the magnetic conduction ability for also just influenceing iron core.

The identical iron core identical number of turns, but the copper cash thickness that winds is different and generate different stress, thin copper cash The coil stress of winding is little, and the inductance measured levels off to calculated value, and power needed for the coil of thick copper cash winding Measure larger, also relative lifting, the inductance value of measurement are then decreased obviously stress, so stress more conference makes permeability decline more It is more.Further illustrate, its bending angle is more big when copper cash is bent, and winds that required stress is bigger, and the stress passes through the bending angle It is transferred to core body.That is, current inductor makes so, have inductance value attenuation is big to ask always because of its structure Topic.

Refer to shown in Fig. 1-4, for the stereogram of prior art inductor structure, top view, sectional view and implement to show It is intended to, it can be clearly seen from the figure that, the inductor 1 includes a coil 11 and an annular core 12, and the coil 11 is winding In on the annular core 12, including one first connection end 13 and a second connection end 14, however, when coil 11 is wound in When on the annular core 12, reach the effect around a circle due to all bending four about 90 degree of bending angle around a circle, Stress needed for it is larger, and the stress is transferred to inside iron core 12 through bending angle, and the inductance value for causing inductor 1 declines It is reduced the problem of big.

Therefore how to solve the problems, such as it is above-mentioned commonly use with missing, creator as of the present utility model and be engaged in this journey The relevant manufactures of industry are desired most ardently where the direction that research improves.

Therefore creator of the present utility model is in view of above-mentioned missing, is to collect related data, via assessing and examine in many ways Amount, and to engage in many years of experience of the industry accumulation, via constantly studying and changing, the beginning designs such a new patent.

Utility model content

The purpose of this utility model is to provide a kind of coil for reducing inductor to stress caused by core interior, enters One step causes the inductor improved structure of the inductance value attenuation reduction of inductor.

In order to reach above-mentioned or other purposes, the utility model discloses a kind of inductor improved structure, the inductor Including a coil and an iron core, the coil encircling is on the iron core, and its one end has one first connection end, other end tool There is a second connection end, it is characterised in that：

Four angles of the iron core are respectively arranged with a unfilled corner so as to when the coil encircling can be reduced effectively when on the iron core Bending angle that the coil is bent every time simultaneously further reduces the stress to core interior.

Wherein, the iron core is annular core.

Wherein, the bending angle that the coil encircling is bent every time when on the iron core is 40 degree to 50 degree.

Wherein, the bending angle that the coil encircling is bent every time when on the iron core is 45 degree.

Wherein, because four angles of the utility model iron core are respectively arranged with a unfilled corner, thereby structure, when the coil loop When being around on the iron core, the bending angle that the coil is bent every time can be effectively reduced.For example, the coil encircling is on the iron core When, the bending angle bent every time is 40 degree to 50 degree.It is preferred that the bending angle bent every time is 45 degree.Consequently, it is possible to can Inductor coil is reduced to stress caused by core interior, further such that the inductance value attenuation of inductor is reduced.

Brief description of the drawings

Fig. 1：For the stereogram of prior art inductor；

Fig. 2：For the top view of prior art inductor；

Fig. 3：For the sectional view of prior art inductor；

Fig. 4：For the implementation schematic diagram of prior art inductor；

Fig. 5：For the stereogram according to the utility model inductor improved structure preferred embodiment；

Fig. 6：For the top view according to the utility model inductor improved structure preferred embodiment；

Fig. 7：For the sectional view according to the utility model inductor improved structure preferred embodiment；And

Fig. 8：For the implementation schematic diagram according to the utility model inductor improved structure preferred embodiment.

Embodiment

To reach above-mentioned purpose and effect, technological means and construction used by the utility model, hereby draw with regard to this practicality New its feature of preferred embodiment elaborate and function are as follows, understand completely in order to sharp.

Refer to shown in Fig. 5-8, be the stereogram of foundation the utility model inductor improved structure preferred embodiment, overlook Figure, sectional view and implementation schematic diagram.It can be clearly seen from the figure that a kind of inductor improved structure of the utility model, can be reduced The coil 21 of inductor 2 is to stress caused by the inside of iron core 22, further such that the inductance value attenuation of inductor 2 is reduced.Also That is, the utility model can provide a kind of inductor 2 with quite accurate inductance value.Inductor 2 described in the utility model includes One coil 21 and an iron core 22, the coil 21 are surrounded on the iron core 22, and its one end has one first connection end 23, separately One end has a second connection end 24.

Wherein, the coil 21 for example can be copper cash, and last layer insulated paint is painted in the copper cash outer surface.And the iron core 22 can Formed by ceramic material, iron oxide or by other non-magnetic raw material sintering, in the present embodiment, the iron core 22 is annular iron Core 22, however, the iron core 22 if other shapes should also be feasible scheme.First connection end 23 and the second connection end 24 may connect to electronic circuit (not shown) both ends, to resist the change of electric current in electronic circuit.

The utility model inductor improved structure is mainly characterized by：Four angles of the iron core 22 are respectively arranged with a unfilled corner 25, four angles of the so-called iron core 22 are preset as 90 degree, but because the setting of the unfilled corner 25, four 90 degree of angle are changed into respectively Two obtuse angles.By the setting of the unfilled corner 25, when the coil 21 is surrounded on the iron core 22, it is every can effectively to reduce the coil 21 The bending angle of secondary bending, further reduce to the stress inside iron core 22.

It is hereby just of the present utility model to be described as follows using start situation by above-mentioned structure, composition design：When being intended to carry out When the utility model inductor 2 makes, the coil 21 is surrounded on the iron core 22, due to the four of the utility model iron core 22 Individual angle is respectively arranged with unfilled corner 25, and when coil 21 is looped around on the iron core 22, the bending angle bent every time is 40 degree to 50 Degree, further illustrate, the bending angle bent every time is 45 degree.

Its principle due to when coil 21 is looped around on the iron core 22, due to around the circle iron core 22 have passed through eight times it is curved Folding, 45 degree of the bending angle average out to bent every time.The inside of iron core 22 is produced consequently, it is possible to which the coil 21 of inductor 2 can be reduced Stress, further such that inductor 2 inductance value attenuation reduce.

Therefore refer to shown in whole accompanying drawings, the utility model exists following excellent really in use, being compared with located by prior art Point：The utility model inductor improved structure can reduce the coil 21 of inductor 2 to stress caused by the inside of iron core 22, further So that the inductance value attenuation of inductor 2 is reduced.

Only, preferred embodiment of the present utility model is the foregoing is only, non-therefore i.e. inflexible limit is of the present utility model specially Sharp scope, therefore such as with the simple modification carried out by the utility model specification and schema content and equivalent structure change, all should Similarly it is contained in the scope of the claims of the present utility model, Chen Ming is given in conjunction.

Claims

1. a kind of inductor improved structure, the inductor includes a coil and an iron core, the coil encircling on the iron core, And its one end has one first connection end, the other end has a second connection end, it is characterised in that：

Four angles of the iron core are respectively arranged with a unfilled corner so as to when the coil encircling can effectively reduce the line when on the iron core Enclose the bending angle bent every time and further reduce the stress to core interior.

2. inductor improved structure as claimed in claim 1, it is characterised in that the iron core is annular core.

3. inductor improved structure as claimed in claim 1, it is characterised in that the coil encircling is curved every time when on the iron core The bending angle of folding is 40 degree to 50 degree.

4. inductor improved structure as claimed in claim 1, it is characterised in that the coil encircling is curved every time when on the iron core The bending angle of folding is 45 degree.