CN211181912U - EI type common-difference mode filter - Google Patents
EI type common-difference mode filter Download PDFInfo
- Publication number
- CN211181912U CN211181912U CN202020327118.6U CN202020327118U CN211181912U CN 211181912 U CN211181912 U CN 211181912U CN 202020327118 U CN202020327118 U CN 202020327118U CN 211181912 U CN211181912 U CN 211181912U
- Authority
- CN
- China
- Prior art keywords
- mode filter
- magnetic core
- groove
- type
- skeleton
- 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 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Landscapes
- Filters And Equalizers (AREA)
Abstract
The utility model relates to a EI type is poor mode filter altogether belongs to the transformer field. Be equipped with skeleton and magnetic core, the magnetic core is E type magnetic core, and two E type magnetic core cartridges have upper groove, mesotrough and time groove at the both ends of skeleton around the processing of skeleton lateral wall, and upper groove and time inslot have the same last winding of number of turns and lower winding by the winding of copper line, and one side processing on the mesotrough inside wall has the fretwork groove, installs I type magnetic core in the fretwork groove. The beneficial effects of the utility model are that, simple structure, common mode filter and the differential mode filter combination that originally do not function in the circuit independent work is a altogether differential mode filter, replaces common mode filter and the differential mode filter of original independent work separately with an EI type altogether differential mode filter, adapts to the miniaturization and the integrated development trend of present power, reduces magnetic components and parts manufacturer's manufacturing cost simultaneously.
Description
Technical Field
The utility model relates to a transformer field says in detail to a EI type common mode filter.
Background
It is known that in order to reduce the influence of the fluctuation of the grid voltage on the operation of the power supply, a common mode filter is required to be configured in a circuit to eliminate the interference of common mode signals and a differential mode filter is required to eliminate the interference of differential mode signals. The traditional common mode filter and the differential mode filter are used as two independent components to play respective roles in a circuit and cannot be replaced mutually.
Disclosure of Invention
In order to overcome the not enough of prior art, the utility model provides a EI type is total to poor mode filter is a total to poor mode filter to the common mode filter and the difference mode filter combination that originally independent work played the effect respectively in the circuit, thereby reduces the components and parts quantity of circuit and reduces power appearance volume, reduces the components and parts purchasing cost of enterprise.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a EI type common mode filter, is equipped with skeleton and magnetic core, its characterized in that, and the magnetic core is E type magnetic core, and two E type magnetic core cartridge have upper groove, well groove and lower groove at the both ends of skeleton around the processing of skeleton lateral wall, and upper groove and lower inslot have the same last winding of number of turns and lower winding by the copper line winding, and one side processing on the well inslot lateral wall has the fretwork groove, installs I type magnetic core in the fretwork groove.
The beneficial effects of the utility model are that, simple structure, common mode filter and the differential mode filter combination that originally do not function in the circuit independent work is a altogether differential mode filter, replaces common mode filter and the differential mode filter of original independent work separately with an EI type altogether differential mode filter, adapts to the miniaturization and the integrated development trend of present power, reduces magnetic components and parts manufacturer's manufacturing cost simultaneously.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of fig. 1.
FIG. 3 is a schematic structural diagram of the skeleton.
Fig. 4 is a left side view of fig. 3.
In the figure, 100 is a framework, 101 is an upper groove, 102 is a middle groove, 103 is a lower groove, 104 is a hollow groove, 109 is an I-shaped magnetic core, 110 is a lower E-shaped magnetic core, 111 is an upper E-shaped magnetic core, 112 is an upper winding, and 113 is a lower winding.
Detailed Description
As shown in the figure, the magnetic core is provided with a framework 100 and magnetic cores, the magnetic cores are E-shaped magnetic cores, the two E-shaped magnetic cores are inserted into two ends of the framework 100, an upper groove 101, a middle groove 102 and a lower groove 103 are processed around the outer side wall of the framework 100, an upper winding 112 and a lower winding 113 with the same number of turns are wound in the upper groove 101 and the lower groove 103 by copper wires, a hollow groove 104 is processed on one side of the inner side wall of the middle groove 102, and an I-shaped magnetic core 109 is installed in the hollow groove 104.
The utility model discloses a concrete manufacture process does, twine the copper line that the number of turns is the same in the last groove 101 of skeleton 100 and lower groove 103 earlier to go up winding 112 and lower winding 113 around making, do not twine the copper line in well groove 102, and well groove 102 one side is fretwork groove 104, then insert the combination together from the upper end and the lower extreme of skeleton 100 respectively to last E type magnetic core 111 and lower E type magnetic core 110, then to I type magnetic core 109 gomphosis in the fretwork groove 104 position of well groove 102, need play insulating and fixed action with the high temperature sticky tape in the peripheral 3 rings of winding of E magnetic core next. At the moment, the filter plays a role of a common mode filter through the E-shaped magnetic cores on the two sides, meanwhile, the I-shaped magnetic core and the two E-shaped magnetic cores form a magnetic loop, leakage inductance parameters of the filter are enhanced, and the circuit is used for filtering differential mode signals after acquiring the leakage inductance parameters and plays a role of a differential mode filter. According to the scheme, the EI type common-mode and differential-mode filter can be provided after the whole process is implemented, and the common-mode filter and the differential-mode filter which work independently and respectively function in the circuit are combined into the common-mode and differential-mode filter. The embodiment is a vertical three-groove framework, and the same principle can be applied to a horizontal three-groove framework.
Claims (1)
1. The utility model provides a EI type common mode filter, is equipped with skeleton and magnetic core, its characterized in that, and the magnetic core is E type magnetic core, and two E type magnetic core cartridge have upper groove, well groove and lower groove at the both ends of skeleton around the processing of skeleton lateral wall, and upper groove and lower inslot have the same last winding of number of turns and lower winding by the copper line winding, and one side processing on the well inslot lateral wall has the fretwork groove, installs I type magnetic core in the fretwork groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020327118.6U CN211181912U (en) | 2020-03-17 | 2020-03-17 | EI type common-difference mode filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020327118.6U CN211181912U (en) | 2020-03-17 | 2020-03-17 | EI type common-difference mode filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211181912U true CN211181912U (en) | 2020-08-04 |
Family
ID=71807060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020327118.6U Expired - Fee Related CN211181912U (en) | 2020-03-17 | 2020-03-17 | EI type common-difference mode filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211181912U (en) |
-
2020
- 2020-03-17 CN CN202020327118.6U patent/CN211181912U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106205978B (en) | A kind of LLC transformers and its processing technology | |
| CN1391334A (en) | Differential mode and common mode integrated filter | |
| CN106960715A (en) | Common-mode filter | |
| CN202584976U (en) | Magnetic core | |
| CN211181912U (en) | EI type common-difference mode filter | |
| CN206076023U (en) | A kind of LLC transformators | |
| CN104157420A (en) | ED type combined resonance transformer | |
| CN111199823A (en) | EI type common-difference mode filter | |
| CN211045224U (en) | Common-differential-mode integrated inductor convenient to assemble | |
| CN201796674U (en) | Improved structure of common mode coil | |
| CN106373734B (en) | High frequency transformer | |
| CN208422613U (en) | A kind of digital power amplifier inductance | |
| CN205303125U (en) | Telescopic EEI makes up magnetic core | |
| CN109102988B (en) | Common-mode and differential-mode integrated reactor | |
| CN208922859U (en) | A kind of inductance core, common mode inductance, electromagnetic interface filter and Switching Power Supply | |
| CN210403487U (en) | Common mode inductor and power supply integrating differential mode | |
| CN206236521U (en) | High frequency transformer | |
| CN209461263U (en) | The combined magnet core of ease of assembly | |
| CN213601714U (en) | PFC inductance | |
| CN219066589U (en) | Symmetrical split type inductance structure | |
| CN220856298U (en) | Inductance for integrated coil module | |
| CN209133319U (en) | Integrated loop construction | |
| CN101110292A (en) | Filter element and manufacturing method thereof | |
| CN209133320U (en) | The reinforced superposing type high current filter inductance of pedestal | |
| CN203895230U (en) | Novel UUI magnetic core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |