CN207251456U - A kind of plate type common mode differential mode magnetic integrated filter - Google Patents
A kind of plate type common mode differential mode magnetic integrated filter Download PDFInfo
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- CN207251456U CN207251456U CN201721242725.7U CN201721242725U CN207251456U CN 207251456 U CN207251456 U CN 207251456U CN 201721242725 U CN201721242725 U CN 201721242725U CN 207251456 U CN207251456 U CN 207251456U
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- magnetic pole
- yoke
- plate type
- differential mode
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Abstract
The utility model discloses a kind of plate type common mode differential mode magnetic integrated filter, including a symmetrically arranged left side, right yoke, it is left, the first magnetic pole is connected between right yoke side by side, second magnetic pole and the 3rd magnetic pole, second magnetic pole and first, spacing is equal between 3rd magnetic pole, the first winding is wound with first magnetic pole, the second winding is wound with 3rd magnetic pole, first, second winding material is identical and number of turns is identical, not coiling in second magnetic pole, first, each two line ends are connected second winding with the electric connection terminal set in corresponding direction yoke respectively, back magnetic core is connected to a left side, right yoke top surface simultaneously covers a left side, right yoke and three groups of magnetic poles.The utility model realizes that the magnetic of common-mode filter and differential mode filter integrates, be applicable to the portable set of continuous miniaturization densification installation, realize magnetic core largely share, coil all share, be conducive to control product height, easy to tandem mounting, be conducive to magnetic field shielding.
Description
Technical field
Circuit filter field is the utility model is related to, is specifically a kind of plate type common mode differential mode magnetic integrated filter.
Background technology
A single-phase common-mode filter and a differential mode filter are usually required in circuit, is disturbed respectively to suppression common mode
And DM EMI.Existing single-phase common-mode filter, usually there is four wire connection terminals, energy suppression common mode interference, but differential mode is done
Disturb unrestraint effect；Existing differential mode filter, usually only two wire connection terminals, can suppress DM EMI, but to common mode interference
Unrestraint acts on.And single-phase common-mode filter and differential mode filter are provided separately in circuit and is unfavorable for continuous miniaturization
The densification installation of portable set, there are volume is big, weight is heavy, the shortcomings of big, of high cost is lost.
Utility model content the purpose of this utility model is to provide a kind of plate type common mode differential mode magnetic integrated filter, with solution
Certainly be provided separately in prior art circuits single-phase common-mode filter and differential mode filter be unfavorable for electronic equipment lightweight requirements and
The problem of densification installation requirement.
In order to achieve the above object, technical solution is used by the utility model：
A kind of plate type common mode differential mode magnetic integrated filter, it is characterised in that：It is left and right including symmetrically arranged left and right yoke
Magnetic yoke structure is identical and high magnetic permeability soft magnetic materials is respectively adopted is made, and is connected with the first magnetic pole, between left and right yoke side by side
Two magnetic poles and the 3rd magnetic pole, three groups of magnetic poles are respectively along the linearly extended right cylinder in left and right horizontal direction, wherein the first magnetic pole and the
Three magnetic poles are symmetrical, the second magnetic pole between the first, the 3rd magnetic pole, and between the second magnetic pole and the first, the 3rd magnetic pole between
Away from equal, the first magnetic pole, the 3rd magnetic pole structure are identical and high magnetic permeability soft magnetic materials is respectively adopted is made, and the second magnetic pole is using opening
The high magnetic permeability soft magnetic materials for having air gap or the low magnetic permeability soft magnetic materials for not opening air gap are made, be wound with the first magnetic pole first around
Group, is wound with the second winding in the 3rd magnetic pole, and first, second winding material is identical and number of turns is identical, in the second magnetic pole not around
Line, each two line ends are connected first, second winding with the electric connection terminal set in corresponding direction yoke respectively, further include the back of the body
Portion's magnetic core, back magnetic core are made of high magnetic permeability soft magnetic materials, back magnetic core be connected to left and right yoke top surface and cover it is left,
Right yoke and three groups of magnetic poles.
A kind of plate type common mode differential mode magnetic integrated filter, it is characterised in that：The left yoke, right yoke are square
Shape slab construction or elliptical plate structure.
A kind of plate type common mode differential mode magnetic integrated filter, it is characterised in that：First magnetic pole, the 3rd magnetic pole are equal
For square section column construction or circular section column construction or oval cross section column construction.
A kind of plate type common mode differential mode magnetic integrated filter, it is characterised in that：Second magnetic pole is square plate
Structure.
A kind of plate type common mode differential mode magnetic integrated filter, it is characterised in that：First winding, the second winding are equal
For enamel covered wire or enamel insulated aluminium wire or flat copper wire or flat type aluminum wire.
A kind of plate type common mode differential mode magnetic integrated filter, it is characterised in that：In the left yoke, right yoke respectively
Electroplating metal material forms pad structure, and electric connection terminal is used as using pad structure.
In the utility model, when flowing into common mode current, back magnetic core, a left side in plate type common mode differential mode magnetic integrated filter
Yoke, right yoke, the first magnetic pole, the 3rd magnetic pole play a major role, and are contributed larger common since magnetic core uses high-permeability material
Mould inductance.
In the utility model, when flowing into differential-mode current, left yoke, right magnetic in plate type common mode differential mode magnetic integrated filter
Yoke, the first magnetic pole, the second magnetic pole, the 3rd magnetic pole form magnetic circuit play a major role, due to the second magnetic pole Effective permeability compared with
Ability that is low and possessing stronger anti-current saturation, contributes larger differential mode inductance.
Compared with the prior art, the beneficial effects of the utility model are embodied in：
1st, the utility model realizes that the magnetic of common-mode filter and differential mode filter integrates, and is applicable to continuous miniaturization
Portable set densification installation, solve existing equipment usually using a common-mode filter and a differential mode filter
Respectively suppression common mode interference and DM EMI and existing volume is big, weight weight, it is of high cost the shortcomings of.
2nd, the utility model realizes that the magnetic of common-mode filter and differential mode filter integrates, with existing equipment usually using one
Common-mode filter and a differential mode filter are distinguished suppression common mode interference and are compared with DM EMI, realize magnetic core largely altogether
All shared with, coil, save magnetic core and copper wire, reduce magnetic loss and copper loss.
3rd, the utility model common mode differential mode magnetic integrated filter electric connection terminal for left yoke, plating metal material in right yoke
Expect the pad structure formed, be conducive to control product height, easy to tandem mounting.
4th, the utility model common mode differential mode magnetic integrated filter, left yoke, right yoke, the first magnetic pole, the second magnetic pole, the 3rd
Back magnetic core is stamped in magnetic pole, reduces leakage field, is conducive to magnetic field shielding.
Brief description of the drawings
Fig. 1 is the utility model structure front view.
Fig. 2 is the utility model structure bottom view.
Embodiment
As shown in Figure 1, a kind of plate type common mode differential mode magnetic integrated filter, including symmetrically arranged left and right yoke 2,3, left,
Right yoke 2,3 structures are identical and high magnetic permeability soft magnetic materials is respectively adopted is made, and are connected between left and right yoke 2,3 side by side
One magnetic pole 4, the second magnetic pole 5 and the 3rd magnetic pole 6, three groups of magnetic poles 4,5,6 be respectively along the linearly extended right cylinder in left and right horizontal direction,
Symmetrically, the second magnetic pole 5 is between the first, the 3rd magnetic pole 4,6, and the second magnetic pole for wherein the first magnetic pole 4 and the 3rd magnetic pole 6
Spacing is equal between 5 and the first, the 3rd magnetic pole 4,6, and the first magnetic pole 4,6 structure of the 3rd magnetic pole is identical and high magnetic permeability is respectively adopted
Soft magnetic materials is made, and the use of the second magnetic pole 5 is provided with the high magnetic permeability soft magnetic materials of air gap or does not open the low magnetic permeability soft magnetism of air gap
Material is made, and the first winding 7 is wound with the first magnetic pole 4, the second winding 8, first, second winding material are wound with the 3rd magnetic pole 6
7th, 8 is identical and number of turns is identical, not coiling in the second magnetic pole 5, first, second winding 7,8 respective two line ends respectively with it is right
Answer the electric connection terminal 9 set in direction yoke 2,3 to connect, further include back magnetic core 1, back magnetic core 1 is soft using high magnetic permeability
Magnetic material is made, and back magnetic core 1 is connected to left and right yoke 2,3 top surfaces and covers left and right yoke 2,3 and three groups of magnetic poles 4,5,6.
Left yoke 2, right yoke 3 are rectangular flat structure or elliptical plate structure.
First magnetic pole 4, the 3rd magnetic pole 6 are square section column construction or circular section column construction or oval cross section cylindricality
Structure.
Second magnetic pole 5 is square plate structure.
First winding 7, the second winding 8 are enamel covered wire or enamel insulated aluminium wire or flat copper wire or flat type aluminum wire.
Electroplating metal material is distinguished in left yoke 2, right yoke 3 and forms pad structure, electric connecting terminal is used as using pad structure
Son 9.
Claims (6)
- A kind of 1. plate type common mode differential mode magnetic integrated filter, it is characterised in that：Including symmetrically arranged left and right yoke, left and right magnetic Yoke structure is identical and high magnetic permeability soft magnetic materials is respectively adopted is made, and is connected with the first magnetic pole, second between left and right yoke side by side Magnetic pole and the 3rd magnetic pole, three groups of magnetic poles are respectively along the linearly extended right cylinder in left and right horizontal direction, wherein the first magnetic pole and the 3rd Magnetic pole is symmetrical, and the second magnetic pole is between the first, the 3rd magnetic pole, and spacing between the second magnetic pole and the first, the 3rd magnetic pole Equal, the first magnetic pole, the 3rd magnetic pole structure are identical and high magnetic permeability soft magnetic materials is respectively adopted is made, and the second magnetic pole is using being provided with The high magnetic permeability soft magnetic materials of air gap is not opened the low magnetic permeability soft magnetic materials of air gap and is made, be wound with the first magnetic pole first around Group, is wound with the second winding in the 3rd magnetic pole, and first, second winding material is identical and number of turns is identical, in the second magnetic pole not around Line, each two line ends are connected first, second winding with the electric connection terminal set in corresponding direction yoke respectively, further include the back of the body Portion's magnetic core, back magnetic core are made of high magnetic permeability soft magnetic materials, back magnetic core be connected to left and right yoke top surface and cover it is left, Right yoke and three groups of magnetic poles.
- A kind of 2. plate type common mode differential mode magnetic integrated filter according to claim 1, it is characterised in that：The left yoke, Right yoke is rectangular flat structure or elliptical plate structure.
- A kind of 3. plate type common mode differential mode magnetic integrated filter according to claim 1, it is characterised in that：First magnetic Column, the 3rd magnetic pole are square section column construction or circular section column construction or oval cross section column construction.
- A kind of 4. plate type common mode differential mode magnetic integrated filter according to claim 1, it is characterised in that：Second magnetic pole For square plate structure.
- A kind of 5. plate type common mode differential mode magnetic integrated filter according to claim 1, it is characterised in that：Described first around Group, the second winding are enamel covered wire or enamel insulated aluminium wire or flat copper wire or flat type aluminum wire.
- A kind of 6. plate type common mode differential mode magnetic integrated filter according to claim 1, it is characterised in that：The left yoke, Electroplating metal material is distinguished in right yoke and forms pad structure, electric connection terminal is used as using pad structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721242725.7U CN207251456U (en) | 2017-09-26 | 2017-09-26 | A kind of plate type common mode differential mode magnetic integrated filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721242725.7U CN207251456U (en) | 2017-09-26 | 2017-09-26 | A kind of plate type common mode differential mode magnetic integrated filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207251456U true CN207251456U (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721242725.7U Expired - Fee Related CN207251456U (en) | 2017-09-26 | 2017-09-26 | A kind of plate type common mode differential mode magnetic integrated filter |
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| Country | Link |
|---|---|
| CN (1) | CN207251456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659129A (en) * | 2017-09-26 | 2018-02-02 | 安徽大学 | A kind of plate type common mode differential mode magnetic integrated filter |
-
2017
- 2017-09-26 CN CN201721242725.7U patent/CN207251456U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659129A (en) * | 2017-09-26 | 2018-02-02 | 安徽大学 | A kind of plate type common mode differential mode magnetic integrated filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20200926 |