CN206271516U - A kind of magnetic element - Google Patents

A kind of magnetic element Download PDF

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Publication number
CN206271516U
CN206271516U CN201621404034.8U CN201621404034U CN206271516U CN 206271516 U CN206271516 U CN 206271516U CN 201621404034 U CN201621404034 U CN 201621404034U CN 206271516 U CN206271516 U CN 206271516U
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China
Prior art keywords
winding
magnetic
magnetic element
column
magnetic core
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CN201621404034.8U
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Chinese (zh)
Inventor
黄家毅
马宗俊
牙华政
黎添雄
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Dongguan Mentech Optical and Magnetic Co Ltd
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Dongguan Mentech Optical and Magnetic Co Ltd
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Priority to CN201621404034.8U priority Critical patent/CN206271516U/en
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Abstract

This application discloses a kind of paster magnetic element, including:Offer the column magnetic core of the first winding slot and the second winding slot successively along short transverse, first winding slot and described second are provided with default spacing between groove;It is wound in the first winding in first winding slot;It is wound in the second winding in second winding slot;Wherein, first winding and the number of turns ratio of second winding are 1:1 or 1:N(N>1).Magnetic element can also also useful is identical form construction design as transformer as inductor, only by the first winding of adjustment and the turn ratio of the second winding, i.e., when the first winding is 1 with the number of turns ratio of second winding:1, the magnetic element as inductor, when the first winding is 1 with the number of turns ratio of second winding:N(N>1) transformer, is can be adjusted to, is conducive to the standard of device to design and produce the public of equipment, reduce design cost and production cost.

Description

A kind of magnetic element
Technical field
The utility model is related to electronic component technology field, more specifically to a kind of magnetic element.
Background technology
Magnetic element is generally made up of winding and magnetic core, it be filtering, energy storage, energy conversion and electrical isolation essential to Power electronic devices, mainly includes transformer and the major class of inductor two.Transformer plays the effect of transformation, inductance energy in power supply In terms of enough solving the problems, such as EMI, so magnetic element is critically important, its basic consumption is accounted between 1/4 to the 1/5 of whole power supply.It is several In all power circuits, all be unable to do without magnetic elements, magnetic element be the most important part of Power Electronic Technique it One.Wherein, inductor (Inductor) is the element that electric energy can be converted into magnetic energy and be stored.The structure class of inductor Transformer, but only one of which winding or two windings are similar to, and transformer is then two windings or more.Inductor has one Fixed inductance, it only hinders the change of electric current.If inductor is in the state of no electric current passes through, it will examination when circuit is connected Figure hinders electric current to flow through it;If inductor is in the state of having electric current to pass through, it will attempt to maintain electric current not when circuit disconnects Become.Inductor is also known as choke, reactor, dynamic reactor.
Magnetic element is usually the design that transformer is individually separated with inductor, and it is all customization part that transformer is most of.By In the power and structural requirement of electronic product, product miniaturization and it is integrated be referred to as new trend, therefore, how by transformer with Inductor is integrated to be structure as a whole, and reduces the volume of magnetic element, and reduces cost is that those skilled in the art are badly in need of solving Technical problem.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of magnetic element, transformer is used into phase with inductor Design is standardized with construction packages, is easy to reduce design cost, and can be produced into so as to reduce with public production equipment This.
To achieve the above object, the utility model provides following technical scheme:
A kind of paster magnetic element, including:
Offer the column magnetic core of the first winding slot and the second winding slot successively along short transverse, first winding slot with Default spacing is provided between second winding slot;
It is wound in the first winding in first winding slot;
It is wound in the second winding in second winding slot;
Wherein, first winding and the number of turns ratio of second winding are 1:1 or 1:N(N>1).
Preferably, in above-mentioned paster magnetic element, the column magnetic core is that cross section is octagonal column magnetic core.
Preferably, in above-mentioned paster magnetic element, first winding slot and second winding slot are circular The ring winding groove that the column magnetic core is opened up.
Preferably, in above-mentioned paster magnetic element, the bottom surface of the column magnetic core is provided with wire lead slot, the wire lead slot With the electrode surface for being electrically connected with printed circuit board (PCB).
Preferably, in above-mentioned paster magnetic element, the also magnetic cover including being sheathed on outside the magnetic core.
Preferably, in above-mentioned paster magnetic element, the magnetic cover is cube-shaped magnetic cover, and its volume range is 8mm* 8mm*6mm-9mm*9mm*7mm。
Preferably, in above-mentioned paster magnetic element, four corners of the magnetic cover bottom are provided with described for making The projection that column magnetic core is centered about.
Preferably, in above-mentioned paster magnetic element, the column magnetic core is soft magnetic metal or nonmetallic soft magnetism material Column magnetic core, the magnetic cover is the magnetic cover of soft magnetic metal or nonmetallic soft magnetism material.
Preferably, in above-mentioned paster magnetic element, the top surface of the column magnetic core is offered for placing winding leads Groove.
From above-mentioned technical proposal as can be seen that a kind of paster magnetic element provided by the utility model, including:Along height Direction offers the column magnetic core of the first winding slot and the second winding slot, first winding slot and second winding slot successively Between be provided with default spacing;It is wound in the first winding in first winding slot;It is wound in second winding slot Second winding;Wherein, first winding and the number of turns ratio of second winding are 1:1 or 1:N(N>1).In order to more preferably full Sufficient high-volume automated production and general, the reduces cost of automatic production line, the magnetic element that the utility model is provided are based on Identical form construction design, only by the first winding of adjustment and the turn ratio of the second winding, realization can be used as transformer Can also be as the purpose of inductor, i.e., when the first winding is 1 with the number of turns ratio of second winding:1, the magnetic element conduct Inductor, when the first winding is 1 with the number of turns ratio of second winding:N(N>1), can be adjusted to transformer.The utility model will Transformer is standardized design with inductor using identical construction packages, while reducing the volume of magnetic element, reduces cost.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also Other accompanying drawings can be obtained according to the accompanying drawing for providing.
A kind of column core structure schematic diagram that Fig. 1 is provided for the utility model embodiment;
A kind of column magnetic core bottom view that Fig. 2 is provided for the utility model embodiment;
A kind of magnetic cover structure schematic diagram that Fig. 3 is provided for the utility model embodiment;
A kind of magnetic element schematic diagram that Fig. 4 is provided for the utility model embodiment;
A kind of magnetic element sectional view that Fig. 5 is provided for the utility model embodiment;
A kind of magnetic element bottom view that Fig. 6 is provided for the utility model embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to, a kind of column core structure schematic diagram that Fig. 1 is provided for the utility model embodiment;Fig. 2 is this practicality A kind of column magnetic core bottom view that new embodiment is provided.Fig. 3 shows for a kind of magnetic cover structure that the utility model embodiment is provided It is intended to;A kind of magnetic element schematic diagram that Fig. 4 is provided for the utility model embodiment;Fig. 5 is provided for the utility model embodiment A kind of magnetic element sectional view;A kind of magnetic element bottom view that Fig. 6 is provided for the utility model embodiment.
In a kind of specific embodiment, there is provided a kind of magnetic element, including:
Offer the column magnetic core 01 of the first winding slot and the second winding slot, first winding slot successively along short transverse Default spacing is provided between second winding slot;
It is wound in the first winding 03 in first winding slot;
It is wound in the second winding 04 in second winding slot, the circle of first winding 03 and second winding 04 Number is than being 1:1 or 1:N(N>1).
Wherein, in the present embodiment, as illustrated in fig. 1 and 2, because column magnetic core 01 is offering along central axis direction successively One winding slot and the second winding slot, the first winding slot and the second winding slot surround the annular groove of the central shaft of column magnetic core 01, I-shaped magnetic core is formed, default spacing, i.e. the first winding slot and described second are provided between the first winding slot and the second winding slot Isolated by magnetic core between winding slot, purpose is in isolated windings, so that the resistance to pressure request between improving winding.The coiling in winding slot, The number of turns compares 1:1 or 1:N(N>1).After coiling, coiling group is wrapped up into insulating tape, insulating properties are improved, using hot dipping process of tin Scolding tin is carried out, or, coiling group is wrapped up into glue, such as epoxy glue or silica gel, substituting insulating tape using insulative glue adopts Scolding tin is carried out with hot dipping process of tin.
The magnetic element that the utility model is provided can also use identical as transformer as inductor Form construction design, only by adjustment the first winding 03 and the second winding 04 turn ratio, i.e., when the first winding 03 with it is described The number of turns ratio of the second winding 04 is 1:1, the magnetic element is used as inductor, transformer, common mode inductance etc., when the first winding 03 is 1 with the number of turns ratio of second winding 04:N(N>1) the anti-driver transformer that, can be adjusted to insulation high is used, height insulation It is required that 1500Vdc is structure as a whole transformer and inductor are integrated, while reducing the volume of magnetic element, reduces cost.
It is pointed out that the conductor in coiling group can be not specifically limited, in protection domain with round wires or lenticular wire It is interior.
Further, in above-mentioned magnetic element, the column magnetic core 01 is that cross section is octagonal column magnetic core 01.
Wherein, the cross section of column magnetic core 01 can be octagon, or it is circular or oval etc. any one Shape, is not specifically limited, and is configured as the case may be, in protection domain.
On the basis of above-mentioned magnetic element, first winding slot and second winding slot are around the post The ring winding groove that shape magnetic core 01 is opened up.
Wherein, the medial surface of ring winding groove can rectangular plane, it is also possible in curved surface, is not specifically limited, and exists In protection domain.
On the basis of above-mentioned magnetic element, the bottom surface of the column magnetic core 01 is provided with wire lead slot, the wire lead slot tool There is the electrode surface 06 for being electrically connected with printed circuit board (PCB).
Wherein, the bottom surface of column magnetic core 01 is usually provided with four wire lead slots of plating, and wire lead slot electroplating surface is welded Can be connected with printed circuit board (PCB) as electrode surface 06, electrode surface 06 after tin, it is middle compared with the prior art electrically to be connected using contact pin Connect, more firmly, reduce volume.
On the basis of above-mentioned magnetic element, also including being sheathed on the magnetic core outside magnetic cover 02.
Wherein, the effect of magnetic cover 02 is that the magnetic flux that magnetic core is produced is bound by within the scope of magnetic cover 02, while conduct Shielding construction, effectively reduces electromagnetic interference, and the volume size and shape of magnetic cover 02 are simultaneously not specifically limited, can be by column magnetic Core 01 is fitted into magnetic cover 02, for example, magnetic cover 02 can be with square, cylinder of center hollow out etc. in protection domain It is interior.
Further, the magnetic cover 02 is cube-shaped magnetic cover, and volume range is 8mm*8mm*6mm-9mm*9mm*7mm.
It is pointed out that the volume range of magnetic cover 02 includes but is not limited to above range, set according to actual conditions Meter, in protection domain.
Further, in above-mentioned magnetic element, the bottom of magnetic cover 02 it is fixed between two parties for making the column magnetic core 01 Raised the 05 of position.
Wherein, four corners of magnetic cover 02 are provided with raised 05, and raised 05 effect is fixed and adjusted rod core 01 and exists Position in magnetic cover 02, is allowed to placed in the middle, the effective magnetic circuit length of device is not changed, and can effectively control inductance value, and Extra frock clamp need not be used.
Further, in above-mentioned magnetic element, the column magnetic core 01 is soft magnetic metal or nonmetallic soft magnetism material Column magnetic core, the magnetic cover 02 is the magnetic cover of soft magnetic metal or nonmetallic soft magnetism material.
Further, in above-mentioned magnetic element, the top surface of the column magnetic core 01 is offered for placing winding leads Groove.Groove is used in the end insertion groove of lead, carries out scolding tin using hot dipping process of tin afterwards.It is pointed out that The shape of cross section of groove does not do specific setting, is set according to lead shape in itself, in protection domain.
The magnetic element structure design uniqueness of the utility model offer, volume miniaturization, good reliability, insulation high, height are resistance to Pressure, the magnetic element can be applied to various circuits as common mode inductance or two-way integrated inductor or anti-driver transformer Flyback encourages change-over circuit, aids in the reduction voltage circuit of output, can be applied to the plurality of application scenes such as SEPIC circuits, ZETA circuits.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can in other embodiments be realized in the case where spirit or scope of the present utility model are not departed from.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (9)

1. a kind of paster magnetic element, it is characterised in that including:
Offer the column magnetic core of the first winding slot and the second winding slot successively along short transverse, first winding slot with it is described Default spacing is provided between second winding slot;
It is wound in the first winding in first winding slot;
It is wound in the second winding in second winding slot;
Wherein, first winding and the number of turns ratio of second winding are 1:1 or 1:N(N>1).
2. paster magnetic element as claimed in claim 1, it is characterised in that the column magnetic core is cross section for octagonal Column magnetic core.
3. paster magnetic element as claimed in claim 2, it is characterised in that first winding slot and second coiling Groove is the ring winding groove opened up around the column magnetic core.
4. paster magnetic element as claimed in claim 3, it is characterised in that the bottom surface of the column magnetic core sets leaded Groove, the wire lead slot has the electrode surface for being electrically connected with printed circuit board (PCB).
5. paster magnetic element as claimed in claim 4, it is characterised in that the also magnetic including being sheathed on outside the magnetic core Cover.
6. paster magnetic element as claimed in claim 5, it is characterised in that the magnetic cover is cube-shaped magnetic cover, its volume Scope is 8mm*8mm*6mm-9mm*9mm*7mm.
7. paster magnetic element as claimed in claim 6, it is characterised in that four corners of the magnetic cover bottom are provided with For the projection for being centered about the column magnetic core.
8. paster magnetic element as claimed in claim 7, it is characterised in that the column magnetic core is soft magnetic metal or non-gold Belong to the column magnetic core of soft magnetism material, the magnetic cover is the magnetic cover of soft magnetic metal or nonmetallic soft magnetism material.
9. paster magnetic element as claimed in claim 8, it is characterised in that the top surface of the column magnetic core is offered for putting Put the groove of winding leads.
CN201621404034.8U 2016-12-20 2016-12-20 A kind of magnetic element Active CN206271516U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621404034.8U CN206271516U (en) 2016-12-20 2016-12-20 A kind of magnetic element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621404034.8U CN206271516U (en) 2016-12-20 2016-12-20 A kind of magnetic element

Publications (1)

Publication Number Publication Date
CN206271516U true CN206271516U (en) 2017-06-20

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CN201621404034.8U Active CN206271516U (en) 2016-12-20 2016-12-20 A kind of magnetic element

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110853904A (en) * 2018-07-27 2020-02-28 昆山同凯电子有限公司 Novel winding magnetic shielding inductor and production method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110853904A (en) * 2018-07-27 2020-02-28 昆山同凯电子有限公司 Novel winding magnetic shielding inductor and production method thereof

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