CN105913999A - Improved structure of power filter - Google Patents
Improved structure of power filter Download PDFInfo
- Publication number
- CN105913999A CN105913999A CN201610330017.2A CN201610330017A CN105913999A CN 105913999 A CN105913999 A CN 105913999A CN 201610330017 A CN201610330017 A CN 201610330017A CN 105913999 A CN105913999 A CN 105913999A
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- skeleton base
- improved structure
- framework base
- inner cavity
- 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.)
- Granted
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 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
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- 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
- 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
- H01F2017/046—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 helical coil made of flat wire, e.g. with smaller extension of wire cross section in the direction of the longitudinal axis
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Filters And Equalizers (AREA)
Abstract
The invention discloses an improved structure of a power filter. The improved structure of the power filter comprises a framework base and a magnetic core placed in an inner cavity of the framework base. Copper wires are wound on the magnetic core, four pins are arranged at the bottom of the framework base, the magnetic core is in a square shape, the copper wires are flat copper wires, the flat copper wires are connected to two symmetrical side columns of the square-shaped magnetic core in a wound mode respectively, winding positioning holes facilitating automatic winding are formed in the positions, in the centers of the side columns, of the upper end face of the magnetic core, small cylinders are arranged on the side wall of the inner cavity of the framework base and connected in the winding positioning holes in a clamped mode, an orientation groove is formed in the lower end face of the magnetic core, an orientation protrusion matched with the orientation groove is arranged on the side wall of the inner cavity of the framework base, heat dissipation holes are formed in the periphery of the side wall of the inner cavity of the framework base, and the orientation groove is in a trapezoid or triangle shape. The improved structure of the power filter is low in manufacturing cost and good in EMI resistance and shielding effect.
Description
Present patent application is the divisional application of invention and created name " a kind of UC type power-supply filter ",
The filing date of original application December in 2014 5 days, Application No. 2014107339632.
Technical field
The present invention relates to a kind of UC type power-supply filter.
Background technology
At present, power-supply filter is used on transformator, nowadays the sector development comparative maturity, general enterprises
Main development direction trend towards reducing artificial, it is achieved automatization, reduce cost.Power-supply filter is also simultaneously
Often used in the industry such as TV, illumination, and this kind of industry is usually present electromagnetic radiation pollution, so increasing
Add anti-EMI filter and shield effectiveness, become the Main Topics of this kind of power-supply filter.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of power-supply filter improved structure, manufacturing cost
Low, and anti-EMI filter performance and shield effectiveness are good.
The technical scheme is that a kind of power-supply filter improved structure, including skeleton base and be placed on
Magnetic core on skeleton base inner chamber, described magnetic core is wound with copper cash, and the bottom of skeleton base is provided with 4 and draws
Foot, described magnetic core is hollow, and described copper cash is flat copper wire, and flat copper wire is rotating around being connected on a mouthful word
On two symmetrical side columns of type magnetic core, the upper surface of magnetic core is provided with in the center of side column and facilitates automatic winding
Coiling location hole, described skeleton base intracavity sidewall is provided with small column, and small column is connected in coiling
In hole, location, described magnetic core is provided with guide slot in lower surface, and described skeleton base intracavity sidewall is provided with
The locator projections portion mated with guide slot, the intracavity sidewall surrounding of described skeleton base is equipped with louvre,
Described guide slot is shaped as trapezoidal or triangle.
Preferably, described hole, coiling location is rectangle.
Using after the technical program, the winding mode in this programme is hollow magnetic core, than tradition use circle,
EE type magnetic core more easily realizes around line automation, and the magnetic core of hollow is provided with hole, coiling location, coiling
Hole, location is for the locating dowel being directed on spooling equipment, and after having good positioning, rotary magnetic core can be quickly real the most automatically
Existing coiling, it is possible to achieve increasingly automated, reduces cost, and compares than former EE type magnetic core, hollow
Magnetic core more improves magnetic core utilization rate, and secondly using in this programme is flat copper wire, and traditional copper cash is circular,
Flat copper wire is limited in linear distance relative to the advantage of circular copper cash, changes the shape of line, than
The general circular copper cash number of turn can be many around about about 3 times, thus promote the inductance value of entirety, and are conducive to more
Good heat radiation, the copper cash of same sectional area, area of dissipation is significantly increased, additionally, due to more identical than original product
The number of turn can reduce the number of plies, therefore can reduce parasitic capacitance value, product anti-EMI filter performance is greatly improved,
Finally utilize the structure that small column is set on skeleton base, well have matched original coiling in magnetic core fixed
Hole, position, so that magnetic core is more preferable with skeleton base assembling precision, prevents magnetic core from rocking.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic three dimensional views of the present invention；
Accompanying drawing 2 is schematic top plan view of the present invention；
Accompanying drawing 3 is the schematic diagram of skeleton base；
Accompanying drawing 4 is the schematic diagram of magnetic core and copper cash.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further:
As shown in Figures 1 to 4, a kind of UC type power-supply filter, including skeleton base 1 and be placed on skeleton
Magnetic core 2 in pedestal inner chamber, described magnetic core is wound with copper cash 3, and the bottom of skeleton base is provided with 4 pins
11, described magnetic core is hollow, and the magnetic core both sides of hollow are two side columns 21, and described copper cash is flat
Flat copper cash, flat copper wire rotating around on two the symmetrical side columns being connected on hollow magnetic core, the upper surface of magnetic core
The hole 22, coiling location facilitating automatic winding, the position, position in hole, coiling location it is provided with in the center of side column
In axial line and the intersection of magnetic core upper surface of side column, hole, coiling location is for determining of being directed on spooling equipment
Position post, described hole 22, coiling location is preferably rectangular, and rectangular indexing holes mates with rectangle locating dowel and can realize
Circumference is spacing, it is not recommended that use circular port, and circular port cannot realize circumferential spacing with circular locating dowel, when fixed
After position post is fixing with hole, location, open spooling equipment can automatic rotary magnetic core, to realize automatic winding, phase
Convenient automatization is wanted for traditional circular magnetic core, reduces cost, and compare than former EE type magnetic core,
The magnetic core of hollow more improves magnetic core utilization rate, and secondly using in this programme is flat copper wire, traditional copper cash
For circle, flat copper wire is limited in linear distance relative to the advantage of circular copper cash, changes line
Shape, can be many around about about 3 times than the general circular copper cash number of turn, thus promote the inductance value of entirety, and
Being conducive to preferably heat radiation, the copper cash of same sectional area, area of dissipation is significantly increased, former additionally, due to ratio
The number of turn that product is identical can reduce the number of plies, therefore can reduce parasitic capacitance value, product anti-EMI filter is greatly improved
Performance, additionally described skeleton base intracavity sidewall is provided with small column 12, and small column is connected in coiling location
In hole, utilize small column and the cooperation in hole, coiling location, so that magnetic core assembles precision with skeleton base
More preferably, prevent magnetic core from rocking, be particularly suitable for using the power-supply filter installed on the transformer, because transformator
During work, vibration is relatively big, and rocking of magnetic core is the biggest, and utilizes the structure of this programme can avoid this very well
Class problem.
As shown in Figure 2, described magnetic core is provided with guide slot 23, described skeleton base inner chamber in lower surface
Sidewall is provided with the locator projections portion 13 mated with guide slot, and the advantage of this design is to allow operator in reality
The installed surface of magnetic core, because the magnetic core in this programme is hollow magnetic core, both sides can be correctly differentiated during the assembling of border
Column symmetry and set, but reality is different according to working environment, the direction of its coiling is different, exists counterclockwise
Two kinds of different winding modes of coiling and coiling clockwise, but it is less susceptible in appearance differentiate, operator
Easily put back when actual installation, and after being provided with guide slot and locator projections portion, can more intuitively be had
It is oriented assembling to effect, it is to avoid the generation of above-mentioned situation, as preferably, described guide slot 23 is shaped as
Trapezoidal or triangle, trapezoidal or triangle has certain conical surface guide effect, more when actual installation
Add and facilitate para-position；It addition, the intracavity sidewall of described skeleton base is equipped with louvre 14 for 4 weeks, magnetic core with
Copper cash can produce certain heat when real work, the existence of louvre have help by this partial heat as early as possible from
Distribute in skeleton base.
Below only the present invention preferably example is described, but is not to be construed as limitations on claims.
The present invention not only limits to and above example, and its concrete structure allows to change, and those skilled in the art can root
It is variously modified according to the present invention and deforms, without departing from the spirit of the present invention, institute of the present invention all should be belonged to
Scope defined in attached claim.
Claims (2)
1. a power-supply filter improved structure, including skeleton base (1) and be placed on skeleton base inner chamber
In magnetic core (2), described magnetic core is wound with copper cash (3), the bottom of skeleton base is provided with 4 pins (11),
It is characterized in that: described magnetic core is hollow, described copper cash is flat copper wire, flat copper wire rotating around
Being connected on two symmetrical side columns (21) of hollow magnetic core, the upper surface of magnetic core installs at the centre bit of side column
Having coiling hole, location (22) facilitating automatic winding, described skeleton base intracavity sidewall is provided with small column
(12), small column is connected in hole, coiling location, and described magnetic core is provided with guide slot (23), institute in lower surface
The skeleton base intracavity sidewall stated is provided with the locator projections portion (13) mated with guide slot, described skeleton base
The intracavity sidewall surrounding of seat is equipped with louvre (14), and described guide slot (23) is shaped as trapezoidal or three
Dihedral.
A kind of power-supply filter improved structure the most according to claim 1, it is characterised in that: described
Coiling hole, location (22) is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330017.2A CN105913999B (en) | 2014-12-05 | 2014-12-05 | A kind of UC types power-supply filter structure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410733963.2A CN104505216B (en) | 2014-12-05 | 2014-12-05 | A kind of UC type power-supply filter |
| CN201610330017.2A CN105913999B (en) | 2014-12-05 | 2014-12-05 | A kind of UC types power-supply filter structure |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410733963.2A Division CN104505216B (en) | 2014-12-05 | 2014-12-05 | A kind of UC type power-supply filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105913999A true CN105913999A (en) | 2016-08-31 |
| CN105913999B CN105913999B (en) | 2017-12-19 |
Family
ID=52946956
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610330796.6A Active CN105914001B (en) | 2014-12-05 | 2014-12-05 | A kind of UC types power-supply filter structure |
| CN201610330017.2A Active CN105913999B (en) | 2014-12-05 | 2014-12-05 | A kind of UC types power-supply filter structure |
| CN201410733963.2A Active CN104505216B (en) | 2014-12-05 | 2014-12-05 | A kind of UC type power-supply filter |
| CN201610330236.0A Active CN105914000B (en) | 2014-12-05 | 2014-12-05 | A kind of UC types power-supply filter |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610330796.6A Active CN105914001B (en) | 2014-12-05 | 2014-12-05 | A kind of UC types power-supply filter structure |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410733963.2A Active CN104505216B (en) | 2014-12-05 | 2014-12-05 | A kind of UC type power-supply filter |
| CN201610330236.0A Active CN105914000B (en) | 2014-12-05 | 2014-12-05 | A kind of UC types power-supply filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN105914001B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914001B (en) * | 2014-12-05 | 2017-09-08 | 海宁联丰东进电子有限公司 | A kind of UC types power-supply filter structure |
| CN106098321B (en) * | 2016-07-05 | 2017-12-19 | 海宁联丰东进电子有限公司 | A kind of assembly type multifunctional filter |
| CN107093513A (en) * | 2017-06-23 | 2017-08-25 | 太仓市变压器有限公司 | A kind of magnetic core of transformer component |
| CN107545975A (en) * | 2017-08-09 | 2018-01-05 | 海宁联丰东进电子有限公司 | A kind of magnetic core of transformer for increasing inductance value and differential mode sensibility reciprocal |
| CN109102995A (en) * | 2018-09-21 | 2018-12-28 | 无锡晶磊电子有限公司 | A kind of ETC type inductor and its manufacturing method |
| CN112562991B (en) * | 2020-11-04 | 2022-03-04 | 广东电网有限责任公司 | Heat radiator for dry-type transformer coil |
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- 2014-12-05 CN CN201610330796.6A patent/CN105914001B/en active Active
- 2014-12-05 CN CN201610330017.2A patent/CN105913999B/en active Active
- 2014-12-05 CN CN201410733963.2A patent/CN104505216B/en active Active
- 2014-12-05 CN CN201610330236.0A patent/CN105914000B/en active Active
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| CN2745198Y (en) * | 2004-06-28 | 2005-12-07 | 施学铭 | A power filter |
| CN201001041Y (en) * | 2007-01-11 | 2008-01-02 | 范干 | Electric power filter |
| KR200444582Y1 (en) * | 2008-09-04 | 2009-05-25 | 크로바하이텍(주) | Line filter |
| EP2395518A1 (en) * | 2010-06-09 | 2011-12-14 | STS Spezial- Trasformatoren- Stockach GmbH & Co. | Housing for construction of air-gapped cylindrical magnetic cores for inductive components |
| CN202121501U (en) * | 2011-02-17 | 2012-01-18 | 施志豪 | Ultra-thin type multifunctional power supply filter |
| US20120280779A1 (en) * | 2011-05-02 | 2012-11-08 | Hsueh-Ming Shih | Common mode choke emi filter of an led driver |
| CN202887903U (en) * | 2011-09-23 | 2013-04-17 | 昱京科技股份有限公司 | Structure of ultra-thin filter |
| CN202275704U (en) * | 2011-10-19 | 2012-06-13 | 北京瑞阳安科技术有限公司 | I-shaped inductance structure |
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| CN105914001A (en) * | 2014-12-05 | 2016-08-31 | 海宁联丰东进电子有限公司 | UC-type power filter improved structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105914001A (en) | 2016-08-31 |
| CN104505216B (en) | 2016-08-24 |
| CN105914000A (en) | 2016-08-31 |
| CN104505216A (en) | 2015-04-08 |
| CN105913999B (en) | 2017-12-19 |
| CN105914001B (en) | 2017-09-08 |
| CN105914000B (en) | 2017-09-08 |
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