CN107424776A - A kind of transformer for increasing inductance value and differential mode sensibility reciprocal - Google Patents
A kind of transformer for increasing inductance value and differential mode sensibility reciprocal Download PDFInfo
- Publication number
- CN107424776A CN107424776A CN201710673704.9A CN201710673704A CN107424776A CN 107424776 A CN107424776 A CN 107424776A CN 201710673704 A CN201710673704 A CN 201710673704A CN 107424776 A CN107424776 A CN 107424776A
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- spreader
- differential mode
- transformer
- inductance value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a kind of transformer for increasing inductance value and differential mode sensibility reciprocal, including skeleton base and it is wound with the magnetic cores of coil windings, the bottom of the skeleton base is provided with stitch, the magnetic core includes two spreaders be arrangeding in parallel, connect the center pillar of two spreader middle parts and connect the side column at two spreader both sides positions, separated formation gap in the center pillar, two coil windings are respectively wound around on two side columns, the thickness side of the spreader and center pillar or two side planes are above side column thickness side, the skeleton base is provided with the magnetic core positioning plane of positioning magnetic core, the corner of the skeleton base is provided with the positioning boss at positioning magnetic core spreader both ends.The present invention adds differential mode sensibility reciprocal on the basis of common mode, and can accomplish bigger inductance value and differential mode sensibility reciprocal, is applied to bigger power section.
Description
Technical field
The present invention relates to transformer, more particularly to ultra-thin, miniature transformer suitable for fields such as TV, illuminations.
Background technology
At present, there is higher requirement in the field such as TV, illumination to ultra-thin, miniaturization transformer.Conventional magnetic core of transformer
Using font structure is returned, inductance value and differential mode sensibility reciprocal are smaller, can not be applied to higher power section.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of transformer for increasing inductance value and differential mode sensibility reciprocal, to answer
Use higher power section.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of increase inductance value and differential mode sensibility reciprocal
Transformer, including skeleton base and the magnetic core for being wound with coil windings, the bottom of the skeleton base are provided with stitch, the magnetic
Core includes two spreaders be arrangeding in parallel, the center pillar for connecting two spreader middle parts and the side column for connecting two spreader both sides positions,
Separated formation gap in the center pillar, two coil windings are respectively wound around on two side columns, the spreader and center pillar
Thickness side or two side planes are above side column thickness side, and the magnetic core positioning that the skeleton base is provided with positioning magnetic core is flat
Face, the corner of the skeleton base are provided with the positioning boss at positioning magnetic core spreader both ends.
Preferably, the skeleton base is provided with the groove for accommodating coil windings.
Preferably, the thickness side of the spreader and center pillar or two side planes are concordant with coil windings.
Preferably, the thickness both sides of the spreader are provided with transverse plane, and the transverse plane is put down with center pillar thickness side plane
Together.
Preferably, the coil windings use flat wire coiling.
Preferably, the thickness both sides of the side column are provided with arc surface.
Preferably, the left and right sides of the skeleton base and front side pass through groove provided with the lead for passing through lead.
The technical solution adopted by the present invention, magnetic core is provided with center pillar, and is interspaced among center pillar, so as on the basis of common mode
On, add differential mode sensibility reciprocal.And magnetic core spreader and center pillar thickness side or both sides are increased, and increase the sectional area of magnetic core,
Bigger inductance value and differential mode sensibility reciprocal can be accomplished, be applied to bigger power section.Further, magnetic core spreader and center pillar are increased
Height is contour with coil windings, makes full use of the space of magnetic core, does not interfere with the overall dimensions of existing product.
In addition, coil windings are wound on magnetic core side column using flat wire mode, compared to traditional circular copper wire, flat wire
Advantage is wired in linear distance, around 3 times of the number of turn more than in general copper cash, so as to lift the sensibility reciprocal of product, and
It is more beneficial for radiating；In the case of the identical number of turn, it is possible to reduce the number of plies, parasitic capacitance can be reduced for product, significantly
Lift the anti-EMI filter performance of product.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of magnetic core；
Fig. 3 is the structural representation of skeleton base.
Embodiment
The technical scheme of the embodiment of the present invention is explained and illustrated with reference to the accompanying drawing of the embodiment of the present invention, but under
It is only the preferred embodiments of the present invention to state embodiment, and not all.Based on the embodiment in embodiment, those skilled in the art
Other embodiment is obtained on the premise of creative work is not made, belongs to protection scope of the present invention.
Embodiment 1, as shown in Figure 1 and Figure 2, a kind of transformer for increasing inductance value and differential mode sensibility reciprocal, including skeleton base 3
And the magnetic core 1 of coil windings 2 is wound with, the bottom of the skeleton base is provided with stitch, and the magnetic core be arranged in parallel including two
Spreader 11, connect two spreader middle parts center pillar 12 and connect two spreader both sides positions side column 13, the center pillar
In separated formation gap 121, so as on the basis of common mode, add differential mode sensibility reciprocal.Two coil windings are respectively wound around
On two side columns 13, the thickness side of the spreader and center pillar or two side planes are above side column thickness side, therefore, increase
The sectional area of magnetic core, and the appearance and size of product is not influenceed, while can accomplish bigger inductance value and differential mode sensibility reciprocal, should
Use bigger power section.
The thickness both sides of the spreader 11 and center pillar 12 are provided with transverse plane, the transverse plane and center pillar thickness side plane
Concordantly.The inward flange of the transverse plane of spreader is provided with chamfered transition face 111.It is provided with and spreader end on the outside of the width of the side column 13
The concordant fore-and-aft plane in face, the thickness both sides of the side column are provided with arc surface, to be convenient to coil windings cooperation.
As shown in figure 3, the skeleton base 3 is provided with the magnetic core positioning plane 31 of positioning magnetic core 1, the skeleton base 3
Corner be provided with the positioning boss 33 at the both ends of positioning magnetic core spreader 11.The transverse plane fitting of spreader 11 and center pillar 12 on magnetic core
In magnetic core positioning plane 31, while by the cooperation at positioning boss 33 and spreader both ends, it can be fixed on skeleton base 3
Magnetic core 1, avoid rocking for magnetic core 1.In addition, the skeleton base 3 is provided with the groove 32 for accommodating coil windings 2, coil windings
Higher and when protruding from the transverse plane of spreader and center pillar on magnetic core, projection can be contained in groove 32, so will not
Influence positioning of the magnetic core positioning plane to spreader on magnetic core and the transverse plane of center pillar.
The left and right sides and front side of the skeleton base 3 are provided with the lead for passing through lead and pass through groove 34.Lead is logical
Lead is crossed by being wrapped in after groove 34 on stitch.
Preferably, the coil windings 2 use flat wire coiling.Compared to traditional circular copper wire, the advantage of flat wire is
Wired in linear distance, around 3 times of the number of turn more than in general copper cash, so as to lift the sensibility reciprocal of product, and it is more beneficial for
Radiating；In the case of the identical number of turn, it is possible to reduce the number of plies, parasitic capacitance can be reduced for product, product is substantially improved
Anti-EMI filter performance.
Embodiment 2, it is with the difference of embodiment 1, the thickness side of the spreader 11 and center pillar 12 or two side planes
It is concordant with coil windings 2.The space of magnetic core is made full use of, does not interfere with the overall dimensions of existing product.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, and is familiar with
The those skilled in the art should be understood that the present invention includes but is not limited to accompanying drawing and interior described in embodiment above
Hold.The modification of any function and structure principle without departing from the present invention is intended to be included in the scope of claims.
Claims (7)
1. a kind of transformer for increasing inductance value and differential mode sensibility reciprocal, including skeleton base and the magnetic core for being wound with coil windings,
The bottom of the skeleton base is provided with stitch, it is characterised in that：The magnetic core includes two spreaders be arrangeding in parallel, two spreaders of connection
The center pillar of middle part and the side column for connecting two spreader both sides positions, separated formation gap in the center pillar, two lines
Circle winding is respectively wound around on two side columns, and the thickness side of the spreader and center pillar or two side planes are above side column thickness
Side, the skeleton base are provided with the magnetic core positioning plane of positioning magnetic core, and the corner of the skeleton base is provided with positioning magnetic core
The positioning boss at spreader both ends.
A kind of 2. transformer for increasing inductance value and differential mode sensibility reciprocal according to claim 1, it is characterised in that：The skeleton
Base is provided with the groove for accommodating coil windings.
A kind of 3. transformer for increasing inductance value and differential mode sensibility reciprocal according to claim 1, it is characterised in that：The spreader
It is concordant with coil windings with the thickness side of center pillar or two side planes.
A kind of 4. transformer for increasing inductance value and differential mode sensibility reciprocal according to claim 3, it is characterised in that：The spreader
Thickness both sides be provided with transverse plane, the transverse plane is concordant with center pillar thickness side plane.
A kind of 5. transformer for increasing inductance value and differential mode sensibility reciprocal according to claim 1, it is characterised in that：The coil
Winding uses flat wire coiling.
A kind of 6. transformer for increasing inductance value and differential mode sensibility reciprocal according to claim 1, it is characterised in that：The side column
Thickness both sides be provided with arc surface.
A kind of 7. transformer for increasing inductance value and differential mode sensibility reciprocal according to claim 1, it is characterised in that：The skeleton
The left and right sides and front side of base are provided with the lead for passing through lead and pass through groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710673704.9A CN107424776A (en) | 2017-08-09 | 2017-08-09 | A kind of transformer for increasing inductance value and differential mode sensibility reciprocal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710673704.9A CN107424776A (en) | 2017-08-09 | 2017-08-09 | A kind of transformer for increasing inductance value and differential mode sensibility reciprocal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107424776A true CN107424776A (en) | 2017-12-01 |
Family
ID=60437711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710673704.9A Pending CN107424776A (en) | 2017-08-09 | 2017-08-09 | A kind of transformer for increasing inductance value and differential mode sensibility reciprocal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107424776A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148084A (en) * | 2018-09-14 | 2019-01-04 | 江西欧美亚电子有限公司 | A kind of ultrathin differential mode filter altogether |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005303034A (en) * | 2004-04-13 | 2005-10-27 | Cosel Co Ltd | Inductor and its manufacturing method |
| CN202134365U (en) * | 2011-06-24 | 2012-02-01 | 珠海科德电子有限公司 | EV inductor with high power density |
| CN202816568U (en) * | 2012-08-28 | 2013-03-20 | 比亚迪股份有限公司 | Magnet core and transformer |
| CN203721415U (en) * | 2014-01-06 | 2014-07-16 | 伍尔特电子(深圳)有限公司 | Differential mode and common mode integrated inductor |
| CN104779037A (en) * | 2014-01-09 | 2015-07-15 | 台达电子企业管理（上海）有限公司 | Magnetic core structure and reactor |
| CN205751804U (en) * | 2016-07-05 | 2016-11-30 | 海宁联丰东进电子有限公司 | A kind of assembly type multifunctional filter |
-
2017
- 2017-08-09 CN CN201710673704.9A patent/CN107424776A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005303034A (en) * | 2004-04-13 | 2005-10-27 | Cosel Co Ltd | Inductor and its manufacturing method |
| CN202134365U (en) * | 2011-06-24 | 2012-02-01 | 珠海科德电子有限公司 | EV inductor with high power density |
| CN202816568U (en) * | 2012-08-28 | 2013-03-20 | 比亚迪股份有限公司 | Magnet core and transformer |
| CN203721415U (en) * | 2014-01-06 | 2014-07-16 | 伍尔特电子(深圳)有限公司 | Differential mode and common mode integrated inductor |
| CN104779037A (en) * | 2014-01-09 | 2015-07-15 | 台达电子企业管理（上海）有限公司 | Magnetic core structure and reactor |
| CN205751804U (en) * | 2016-07-05 | 2016-11-30 | 海宁联丰东进电子有限公司 | A kind of assembly type multifunctional filter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148084A (en) * | 2018-09-14 | 2019-01-04 | 江西欧美亚电子有限公司 | A kind of ultrathin differential mode filter altogether |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
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| RJ01 | Rejection of invention patent application after publication |