CN210129418U - Flattening filter - Google Patents
Flattening filter Download PDFInfo
- Publication number
- CN210129418U CN210129418U CN201920311502.4U CN201920311502U CN210129418U CN 210129418 U CN210129418 U CN 210129418U CN 201920311502 U CN201920311502 U CN 201920311502U CN 210129418 U CN210129418 U CN 210129418U
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- CN
- China
- Prior art keywords
- magnetic core
- mounting base
- flattening filter
- winding
- primary winding
- 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.)
- Expired - Fee Related
Links
- 238000004804 winding Methods 0.000 claims abstract description 32
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 208000032365 Electromagnetic interference Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model discloses a flattening filter, including mouthful style of calligraphy magnetic core, twine in the primary winding of the magnetic core left and right sides, secondary respectively, on the mounting base was located to the magnetic core, primary winding, secondary's leading-out terminal linked to each other with pin foot. The utility model discloses simple structure adopts the mouth style of calligraphy magnetic core, and the enameled wire directly twines in the magnetic core both sides, does not use the skeleton, effectively reduces the wave filter height.
Description
Technical Field
The utility model relates to a wave filter, especially a flattening wave filter.
Background
Television sets and displays have been developed over the years, and have evolved from CRT televisions, CRT displays, and LCD liquid crystal televisions, LCD liquid crystal displays, to current LED televisions and LED displays. By using the LED technology, the display effect which is thinner, brighter and clearer than that of the LCD can be manufactured, and the LED display device has wide application prospect. However, the conventional television has many power filter coils and large size, and the reduction of the overall thickness of the LED television and the LED display is restricted. Meanwhile, due to the thinning of the product, various electronic elements are mounted more compactly, so that the requirement of the whole machine on EMI (electro-magnetic interference) is higher. In order to meet the thin design requirements of televisions and displays and provide good EMI effects, a flat high-performance filter applied to LED televisions and displays is needed.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects of the prior art, the utility model provides a can effectively improve space utilization's flattening wave filter.
The technical scheme is as follows: a flattening filter comprises a square magnetic core, a primary winding and a secondary winding, wherein the primary winding and the secondary winding are wound on the left side and the right side of the magnetic core respectively, the magnetic core is arranged on a mounting base, and the wire outlet ends of the primary winding and the secondary winding are connected with a pin. The utility model discloses simple structure adopts the mouth style of calligraphy magnetic core, and the enameled wire directly twines in the magnetic core both sides, does not use the skeleton, effectively reduces the wave filter height.
The winding coil is a flat enameled wire.
The mounting base is a sinking type mounting base, the bottom plate of the mounting base is arranged at the bottom of the mounting base, the magnetic core is mounted on the bottom plate, and the magnetic core and the winding wound on the two sides of the magnetic core are embedded into the mounting base.
The middle of the mounting base is provided with a positioning rod, and the positioning rod penetrates through a through hole in the middle of the square magnetic core.
The pin is in a hook shape.
The magnetic core is ferrite magnetic core.
Has the advantages that: the utility model discloses a flattening wave filter has following advantage:
1. flattening: the utility model adopts the magnetic core shaped like a Chinese character kou, the enameled wire is directly wound on the two sides of the magnetic core, the framework is not used, the height of the filter is effectively reduced, and the height of the filter is further reduced because the mounting base adopted by the utility model is a sunken mounting base, the magnetic core and the windings wound on the two sides of the magnetic core are embedded into the mounting base;
2. and (4) fixing the position: the positioning rod is arranged in the middle of the mounting base of the utility model, and the positioning rod passes through the through hole in the middle of the square magnetic core, so that the position of the magnetic core can be fixed;
3. the utility model discloses a flat wire twines on the magnetic core, can effectively reduce the parasitic parameter between the circle, improves the high frequency characteristic of wave filter.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a schematic view of a square-shaped magnetic core;
FIG. 3 is a schematic view of a mounting base structure;
wherein: 1. magnetic core, 21 primary winding, 22 secondary winding, 3 mounting base, 31 bottom plate, 32 positioning rod.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 3, a flattening filter includes a square magnetic core 1, a primary winding 21 and a secondary winding 22 wound around the left and right sides of the magnetic core 1, respectively, the magnetic core 1 is disposed on a mounting base 3, and the outlet ends of the primary winding 21 and the secondary winding 22 are connected to a pin; and the coil of the winding 2 is a flat enameled wire. The utility model has simple structure, adopts the square magnetic core 1, the enameled wire is directly wound on the two sides of the magnetic core 1, no framework is used, and the height of the filter is effectively reduced; the mounting base 3 is a sinking type mounting base 3, a bottom plate 31 of the mounting base 3 is arranged at the bottom of the mounting base 3, the magnetic core 1 is mounted on the bottom plate 31, and the magnetic core 1 and the winding 2 wound on two sides of the magnetic core are embedded into the mounting base 3; a positioning rod 32 is arranged in the middle of the mounting base 3, and the positioning rod 32 penetrates through a through hole in the middle of the square magnetic core 1; the pin is in a hook shape; the magnetic core 1 is a ferrite magnetic core 1.
Examples
A flattening filter is 10.0mm max. in design height, 30mH min. in inductance and 1.0A in rated current; the filter comprises a square magnetic core 1, a primary winding 2 and a secondary winding 2 are respectively wound on the left side and the right side of the magnetic core 1, a framework is not used, and the height of the filter is effectively reduced;
the winding 2 coil is a flat enameled wire, the flat enameled wire is adopted, the winding is tightly wound, turn-to-turn parasitic parameters can be effectively reduced, the high-frequency characteristic of the filter is improved, and the magnetic core 1 is a ferrite magnetic core 1.
The mounting base 3 is a sinking type mounting base 3, the bottom plate 31 of the mounting base is arranged at the bottom of the mounting base 3, the magnetic core 1 is mounted on the bottom plate 31, the magnetic core 1 and the winding 2 wound on the two sides of the magnetic core are embedded into the mounting base 3, the overall height of the filter can be further reduced, the outgoing line ends of the primary winding 2 and the secondary winding 2 are connected with pin pins, and the pin pins are hook-shaped.
A positioning rod 32 is arranged in the middle of the mounting base 3, the cross section area of the positioning rod 32 is smaller than the area of a through hole between the square magnetic cores 1, and the magnetic cores 1 can be fixed by penetrating through the through hole in the middle of the square magnetic cores 1.
The embodiments of the present invention have been described in detail with reference to the drawings and examples, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. A flattening filter, characterized by: including square magnetic core (1), twine primary winding (21), secondary winding (22) in magnetic core (1) left and right sides respectively, on installation base was located in magnetic core (1), primary winding (21), secondary winding (22) the leading-out terminal and pin foot link to each other.
2. A flattening filter according to claim 1, characterized in that: the winding is a flat enameled wire.
3. A flattening filter according to claim 1, characterized in that: the mounting base is a sinking type mounting base, the bottom plate of the mounting base is arranged at the bottom of the mounting base, the magnetic core (1) is mounted on the bottom plate, and the magnetic core (1) and windings wound on the two sides of the magnetic core are embedded into the mounting base.
4. A flattening filter according to claim 1, characterized in that: a positioning rod (32) is arranged in the middle of the mounting base, and the positioning rod (32) penetrates through a through hole in the middle of the square magnetic core (1).
5. A flattening filter according to claim 1, characterized in that: the pin is in a hook shape.
6. A flattening filter according to claim 1, characterized in that: the magnetic core (1) is a ferrite magnetic core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920311502.4U CN210129418U (en) | 2019-03-12 | 2019-03-12 | Flattening filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920311502.4U CN210129418U (en) | 2019-03-12 | 2019-03-12 | Flattening filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210129418U true CN210129418U (en) | 2020-03-06 |
Family
ID=69660128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920311502.4U Expired - Fee Related CN210129418U (en) | 2019-03-12 | 2019-03-12 | Flattening filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210129418U (en) |
-
2019
- 2019-03-12 CN CN201920311502.4U patent/CN210129418U/en not_active Expired - Fee Related
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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: 20200306 |