CN105405574A - EQV type common mode filter - Google Patents
EQV type common mode filter Download PDFInfo
- Publication number
- CN105405574A CN105405574A CN201511000246.XA CN201511000246A CN105405574A CN 105405574 A CN105405574 A CN 105405574A CN 201511000246 A CN201511000246 A CN 201511000246A CN 105405574 A CN105405574 A CN 105405574A
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- China
- Prior art keywords
- winding section
- eqv
- coil
- section
- mode filter
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- Pending
Links
- 238000004804 winding Methods 0.000 claims abstract description 79
- 238000003491 array Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 4
- 239000013256 coordination polymer Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
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- 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
- H02M1/126—Arrangements for reducing harmonics from ac input or output using passive filters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Filters And Equalizers (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention relates to an EQV type common mode filter, which comprises a wire winding framework, a first coil, a second coil and two magnetic core bodies, wherein the first coil is wound at the first wire winding part of the wire winding framework through an automatic wire winding machine; and the second coil is wound at the second wire winding part of the wire winding framework through the automatic wire winding machine. The wire winding framework with the wound coils is arranged at the two magnetic core bodies, wherein the cross section shape in the two magnetic core bodies is identical to the cross section shape of the wire winding framework; and the wire winding framework with the maximum dimension can be accommodated at the inside. The EQV type common mode filter has the advantages that the size is small; meanwhile, a good filtering effect can also be achieved; the coils are not manually wound; and the manufacturing cost of the EQV type common mode filter is effectively reduced.
Description
Technical field
The present invention relates to a kind of wave filter technology field, particularly relate to the EQV type common-mode filter that a kind of switching power circuit uses.
Background technology
The common-mode filter used in Switching Power Supply, for the electromagnetic interference signal of filtering common mode.Vital part indispensable in switching power circuit, thus consumption and huge.Now each large TV and monitor producer are kept in contradictions in the use of power-supply filter.Its repugnance: in order to make its electromagnetic compatibility filter effect reach preassigned, best is chosen as loop filter, and the disadvantage of loop filter needs hand wound exactly.Result in the product supply of material when pure hand wound not in time, the arrangement of the interim plan for adjustment of frequent Hui Shi complete machine producer, this situation is the common fault of industry, comprises overseas LG and Samsung.Except the problems referred to above, hand wound will cause the raising of cost of labor, also cause the manufacturing cost of common-mode filter to improve.
Therefore, use matrix type common-mode filter can be paid the utmost attention to when the Switching Power Supply design of often kind of type.Matrix type common-mode filter can not occupy the too many area of printed circuit board, its volume can not be too large, and the thickness of LED television can not be too thick, therefore the height of matrix type common-mode filter can not be too high, can meet above-mentioned, the common-mode filter of general size as UU type common-mode filter, the filter effect of matrix type common-mode filter like this is barely satisfactory, also can only be confined to undersized LED television.
Summary of the invention
For deficiency of the prior art, the object of this invention is to provide a kind of EQV type common-mode filter.
In order to solve the problems of the technologies described above, this application discloses a kind of EQV type common-mode filter, it is characterized in that, comprise bobbin, the first coil, the second coil and two magnetic core arrays, described bobbin comprises the first electrode section, the first winding section, the second winding section and the second electrode section, described first winding section and the second winding section are cylinder and are connected, described first electrode section and the second electrode section are connected to the lateral surface of described first winding section and the second winding section, and described first electrode section and the second electrode section have two pins respectively, described first coil is set around described first winding section, and its two ends are connected to two pins of described first electrode section, and described second coil is set around described second winding section, and its two ends are connected to two pins of described second electrode section, described two magnetic core arrays are arranged at described bobbin, the cross sectional shape of described magnetic core array meets the cross sectional shape of described bobbin, the point of contact line of described first winding section and the second winding section upper edge and the first outer surface of described two magnetic cores in the same plane, the first opening is formed in described first outer surface, described first accommodating described first winding section of opening and the second winding section upper edge, under described first winding section and the second winding section, the point of contact line of ora terminalis and the second outer surface of described two magnetic cores are positioned at same plane, the second opening is formed in described second outer surface, ora terminalis under described second accommodating described first winding section of opening and the second winding section, described first electrode section and the second electrode area are on two magnetic core arrays of described second opening both sides.
According to an execution mode of the application, the material of above-mentioned two magnetic core arrays is ferrite.
According to an execution mode of the application, the magnetic permeability of above-mentioned two magnetic core arrays is between 5000 μ and 15000 μ.
According to an execution mode of the application, above-mentioned multiple pin is CP pin.
According to an execution mode of the application, the cross sectional shape of above-mentioned multiple pin is square.
According to an execution mode of the application, the height of above-mentioned two magnetic core arrays is less than 13mm.
According to an execution mode of the application, above-mentioned first coil and the second coil are wound in described first winding section and the second winding section by automatic coil winding machine.
According to an execution mode of the application, above-mentioned control device also comprises power connector and starting switch, and power connector and starting switch are arranged at left base or right base, and connection control circuit board.
Compared with prior art, the application can obtain and comprise following technique effect:
The core volume of the EQV type common-mode filter of the application is little, and its inside is provided with the space of accommodating maximum bobbin, so obtains volume little and have the EQV type common-mode filter of good filter effect.
The coil of the EQV type common-mode filter of the application utilizes automatic coil winding machine to be wound in bobbin, reaches automatic winding coil, need not use artificial coiling, reduces cost of labor, reaches the manufacturing cost reducing EQV type common-mode filter.
The pin of the EQV type common-mode filter of the application uses square pin, avoids in automatic winding process, and the problem easily come off from pin occurs at the two ends of coil.
Accompanying drawing explanation
Fig. 1 is the stereogram of the EQV type common-mode filter of an execution mode of the application.
Fig. 2 is another stereogram of the EQV type common-mode filter of an execution mode of the application.
Fig. 3 is the stereogram of the bobbin of an execution mode of the application.
Fig. 4 is the stereogram of the magnetic core of an execution mode of the application.
Embodiment
Below by with multiple execution modes of graphic exposure the application, as clearly stated, the details in many practices will be explained in the following description.But should be appreciated that, the details in these practices is not applied to limit the application.That is, in the some embodiments of the application, the details in these practices is non-essential.In addition, for the purpose of simplicity of illustration, some known usual structures and assembly illustrate it by the mode simply illustrated in the drawings.
About used herein it " ＂, " the 2nd ＂ etc., the not special meaning of censuring order or cis-position, is also not used to limit the application, and it is only used to distinguish the assembly or operation that describe with constructed term.
Refer to Fig. 1 to Fig. 4, it is the stereogram of the EQV type common-mode filter of the application one execution mode, the stereogram of bobbin and the stereogram of magnetic core; As shown in the figure, the application provides a kind of EQV type common-mode filter 1, and it comprises bobbin 10, first coil 11, second coil 12 and two magnetic cores 13.Bobbin 10 comprises the first winding section, electrode section 101, first winding section 102, second 103 and the second electrode section 104, first winding section 102 and the second winding section 103 are respectively cylinder, first winding section 102 is connected with the second winding section 103, and the center of the first winding section 102 and the second winding section 103 has magnetic core perforation 105.First electrode section 101 is arranged at the lateral surface of the first winding section 102 and toward extension, the second electrode section 104 is arranged at the lateral surface of the second winding section 103 and toward extension, the second electrode section 104 is relative with the first electrode section 101.First electrode section 101 and the second electrode section 104 have two pins 106 respectively, and wherein pin 106 is CP pin.First coil 11 and the second coil 12 are arranged at the first winding section 102 and the second winding section 103 respectively, the two ends of the first coil 11 are connected to two pins 106 of the first electrode section 101, similarly, the two ends of the second coil 12 are connected to two pins 106 of the second electrode section 104.
Consult Fig. 4 again, the ferrite of the materials'use high magnetic conductance of two magnetic core arrays 13 of the application, its magnetic permeability is between 5000 μ and 15000 μ.Two magnetic core arrays 13 are installed in bobbin 10, the lateral surface of its coated bobbin 10 and the magnetic core perforation 105 through bobbin 10.The cross sectional shape of two magnetic core arrays 13 and the cross sectional shape consistent size of bobbin 10, also represent when two magnetic core arrays 13 are installed in bobbin 10, bobbin 10 is just placed in the space that two magnetic core arrays 13 are formed, and does not have other wastes spatially.Each magnetic core array 13 has the first outer surface 131 and second outer surface 132 relative with the first outer surface 131, when bobbin 10 is arranged at two magnetic core arrays 13, first outer surface 131 of each magnetic core array 13 is connected, and its second outer surface 132 is connected, as shown in Figures 1 and 2.First winding section 102 of bobbin 10 and the point of contact line C1 of the second winding section 103 upper edge and the first outer surface 131 in the same plane, two the first outer surfaces 131 of two magnetic core arrays 13 like this have the upper edge of accommodating first winding section 102 of the first opening 133, first opening 133 and the second winding section 103.Similarly, first winding section 102 of bobbin 10 and the point of contact line C2 of the second 103 times ora terminalis in winding section and the second outer surface 132 in the same plane, two the second outer surfaces 132 of two magnetic core arrays 13 like this have the second opening 134, the lower ora terminalis of accommodating first winding section 102 of the second opening 134 and the second winding section 103, the first electrode section 101 and the second electrode section 104 lay respectively on two magnetic core array 13 sidewalls of the second opening 134 both sides.The height of two magnetic core arrays 13 of the application is less than 13mm, when bobbin 10 is installed in two magnetic core arrays 13, the height of whole EQV type common-mode filter 1 is about 13mm, in other words, the volume of the EQV type common-mode filter 1 of the application is minimum, and be provided with in the inner can the space of bobbin 10 of accommodating maximum volume, so obtain volume little and there is the EQV type common-mode filter 1 of good filter effect, and be applicable to LED television.
First coil 11 of the application and the second coil 12 use fully automatic wire winding machine to be wound in the first winding section 102 and the second winding section 103, the two ends of the first coil 11 connect two pins 106 of the first electrode section 101 respectively, the two ends of the second coil 12 connect two pins 106 of the second electrode section 104 respectively, so hand wound need not be used, reduce cost of labor, and then reduce the manufacturing cost of the EQV type common-mode filter 1 manufacturing the application.The cross sectional shape of multiple pins 106 of the application is square, the problem that improvement had previously used circular pin easily to come off because of factors such as winding tension and enamelled wire intensity at automatic winding process coil two ends.
In sum, in one or more execution mode of the application, the core volume of the EQV type common-mode filter of the application is little, and its inside is provided with the space of accommodating maximum bobbin, so obtains volume little and have the EQV type common-mode filter of good filter effect.
The coil of the EQV type common-mode filter of the application utilizes automatic coil winding machine to be wound in bobbin, reaches automatic winding coil, need not use artificial coiling, reduces cost of labor, reaches the manufacturing cost reducing EQV type common-mode filter.The pin of the EQV type common-mode filter of the application uses square pin, avoids in automatic winding process, and the problem easily come off from pin occurs at the two ends of coil.
Be only the execution mode of the application described in upper, be not limited to the application.To those skilled in the art, the application can have various modifications and variations.Any amendment done in all spirit in the application and principle, equivalent replacement, improvement etc., within the right that all should be included in the application.
Claims (7)
1. an EQV type common-mode filter, it is characterized in that, comprise bobbin, the first coil, the second coil and two magnetic core arrays, described bobbin comprises the first electrode section, the first winding section, the second winding section and the second electrode section, described first winding section and the second winding section are cylinder and are connected, described first electrode section and the second electrode section are connected to the lateral surface of described first winding section and the second winding section, and described first electrode section and the second electrode section have two pins respectively, described first coil is set around described first winding section, and its two ends are connected to two pins of described first electrode section, and described second coil is set around described second winding section, and its two ends are connected to two pins of described second electrode section, described two magnetic core arrays are arranged at described bobbin, the cross sectional shape of described magnetic core array is identical with the cross sectional shape of described bobbin, the point of contact line of described first winding section and the second winding section upper edge and the first outer surface of described two magnetic cores in the same plane, the first opening is formed in described first outer surface, described first accommodating described first winding section of opening and the second winding section upper edge, under described first winding section and the second winding section the point of contact line of ora terminalis and the second outer surface of described two magnetic cores in the same plane, the second opening is formed in described second outer surface, ora terminalis under described second accommodating described first winding section of opening and the second winding section, described first electrode section and the second electrode area are on two magnetic core arrays of described second opening both sides.
2. EQV type common-mode filter according to claim 1, is characterized in that, the material of described two magnetic core arrays is ferrite.
3. EQV type common-mode filter according to claim 1, is characterized in that, the magnetic permeability of described two magnetic core arrays is between 5000 μ and 15000 μ.
4. EQV type common-mode filter according to claim 1, is characterized in that, described multiple pin is CP pin.
5. EQV type common-mode filter according to claim 1, is characterized in that, the cross sectional shape of described multiple pin is square.
6. EQV type common-mode filter according to claim 1, is characterized in that, the height of described two magnetic core arrays is less than 13mm.
7. EQV type common-mode filter according to claim 1, is characterized in that, described first coil and the second coil are wound in described first winding section and the second winding section by automatic coil winding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000246.XA CN105405574A (en) | 2015-12-28 | 2015-12-28 | EQV type common mode filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000246.XA CN105405574A (en) | 2015-12-28 | 2015-12-28 | EQV type common mode filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105405574A true CN105405574A (en) | 2016-03-16 |
Family
ID=55470998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511000246.XA Pending CN105405574A (en) | 2015-12-28 | 2015-12-28 | EQV type common mode filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN105405574A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT526570A1 (en) * | 2022-10-04 | 2024-04-15 | Egston System Electronics Eggenburg Gmbh | COIL ARRANGEMENT |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558428A (en) * | 2004-01-14 | 2004-12-29 | 台达电子工业股份有限公司 | Voltage transformer arrangement |
| CN202332538U (en) * | 2011-11-23 | 2012-07-11 | 深圳市普惠照明有限公司 | Common mode choke |
| CN202332542U (en) * | 2011-12-07 | 2012-07-11 | 一诺科技股份有限公司 | Core winding for fixing coil |
| CN202816539U (en) * | 2012-08-28 | 2013-03-20 | 珠海科德电子有限公司 | High power density electron volt (EV) type inductor |
| CN103839659A (en) * | 2012-11-21 | 2014-06-04 | 台达电子工业股份有限公司 | Magnetic core, winding frame and transformer |
| CN203673942U (en) * | 2014-01-23 | 2014-06-25 | 深圳市雅玛西电子有限公司 | Ultrathin common mode inductor capable of resisting direct current components |
| CN104505229A (en) * | 2014-12-25 | 2015-04-08 | 广州金升阳科技有限公司 | Wire leading frame, manufacturing method bobbin based on wire leading frame and bobbin |
| CN104835615A (en) * | 2015-05-29 | 2015-08-12 | 徐梁冰 | Small-sized common mode inductor |
-
2015
- 2015-12-28 CN CN201511000246.XA patent/CN105405574A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558428A (en) * | 2004-01-14 | 2004-12-29 | 台达电子工业股份有限公司 | Voltage transformer arrangement |
| CN202332538U (en) * | 2011-11-23 | 2012-07-11 | 深圳市普惠照明有限公司 | Common mode choke |
| CN202332542U (en) * | 2011-12-07 | 2012-07-11 | 一诺科技股份有限公司 | Core winding for fixing coil |
| CN202816539U (en) * | 2012-08-28 | 2013-03-20 | 珠海科德电子有限公司 | High power density electron volt (EV) type inductor |
| CN103839659A (en) * | 2012-11-21 | 2014-06-04 | 台达电子工业股份有限公司 | Magnetic core, winding frame and transformer |
| CN203673942U (en) * | 2014-01-23 | 2014-06-25 | 深圳市雅玛西电子有限公司 | Ultrathin common mode inductor capable of resisting direct current components |
| CN104505229A (en) * | 2014-12-25 | 2015-04-08 | 广州金升阳科技有限公司 | Wire leading frame, manufacturing method bobbin based on wire leading frame and bobbin |
| CN104835615A (en) * | 2015-05-29 | 2015-08-12 | 徐梁冰 | Small-sized common mode inductor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT526570A1 (en) * | 2022-10-04 | 2024-04-15 | Egston System Electronics Eggenburg Gmbh | COIL ARRANGEMENT |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |
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