CN204190606U - A kind of current transformer electromagnetic interface filter - Google Patents
A kind of current transformer electromagnetic interface filter Download PDFInfo
- Publication number
- CN204190606U CN204190606U CN201420646183.XU CN201420646183U CN204190606U CN 204190606 U CN204190606 U CN 204190606U CN 201420646183 U CN201420646183 U CN 201420646183U CN 204190606 U CN204190606 U CN 204190606U
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- magnet ring
- current transformer
- encapsulating structure
- electromagnetic interface
- electric capacity
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Abstract
The utility model discloses a kind of current transformer electromagnetic interface filter, comprise magnet ring and the electric capacity mounting panel being laid with capacitance component, described magnet ring adopts insulated leg to fix and carries out encapsulation formation magnet ring encapsulating structure, and this magnet ring encapsulating structure is provided with the electrical connector for overlapping with current transformer; Described electric capacity mounting panel is provided with the binding post for being connected with magnet ring encapsulating structure.The utility model current transformer electromagnetic interface filter adopts magnet ring+electric capacity mounting plates structure, magnet ring uses insulated leg to fix, the outside structural member that uses encapsulates, it is outside that electric capacity mounting panel is placed in electromagnetic interface filter encapsulating structure, use the terminal mode of connection to be connected with the magnet ring encapsulating structure of filter, to be convenient for changing and current transformer runs on-the-spot after-sales service.The structure of this filter is simple, reduces the cost of current transformer simultaneously.
Description
Technical field
The utility model relates to a kind of current transformer electromagnetic interface filter.
Background technology
The low-pass filter circuit that electromagnetic interface filter is made up of series inductance and shunt capacitance usually, its effect is the frequency signal access arrangement of permission equipment when normally working, and has larger inhibition to the interference signal of high frequency.Magnetic ring filter and common mode inductance are a kind of EMI devices, are mainly used in High frequency filter, are the main auxiliary equipments of various Switching Power Supply.It is high that magnetic ring filter has reliability, and inductance value scope is large, and rated current is high.Existing electromagnetic interface filter structure is comparatively complicated, according to the requirement of the market demand and current transformer cost declining, needs the structure simplifying current transformer electromagnetic interface filter.
Utility model content
The purpose of this utility model is to provide a kind of current transformer electromagnetic interface filter, to reduce the cost of current transformer, simplifies the structure of filter.
In order to realize above object, the technical scheme that the utility model adopts is: a kind of current transformer electromagnetic interface filter, comprise magnet ring and the electric capacity mounting panel being laid with capacitance component, described magnet ring adopts insulated leg to fix and carries out encapsulation formation magnet ring encapsulating structure, and this magnet ring encapsulating structure is provided with the electrical connector for overlapping with current transformer; Described electric capacity mounting panel is provided with the binding post for being connected with magnet ring encapsulating structure.
Described electric capacity mounting panel is fixed on magnet ring encapsulating structure by insulation column.
Described electrical connector is outlet copper bar, and described outlet copper bar is fixed on the inside of magnet ring encapsulating structure by copper bar bearing.
This filter outside adopts metallic plate to encapsulate.
The utility model current transformer electromagnetic interface filter adopts magnet ring+electric capacity mounting plates structure, magnet ring uses insulated leg to fix, the outside structural member that uses encapsulates, it is outside that electric capacity mounting panel is placed in electromagnetic interface filter encapsulating structure, use the terminal mode of connection to be connected with the magnet ring encapsulating structure of filter, to be convenient for changing and current transformer runs on-the-spot after-sales service.The structure of this filter is simple, reduces the cost of current transformer simultaneously.
In addition, current transformer exchanges electromagnetic interface filter and direct current electromagnetic interface filter and all uses outlet copper bar and current transformer DC side and AC to overlap, can to shield body existing structure completely compatible with current transformer.
Construction packages is carried out in filter outside can better protecting filter magnet ring; simultaneously filter internal outlet copper bar uses copper bar bearing to fix, and can effectively avoid electromagnetic interface filter to occur magnet ring or capacitor board damaged condition because copper bar rocks shielding in body copper bar overlap joint process with current transformer.
Accompanying drawing explanation
Fig. 1 is for exchanging electromagnetic interface filter schematic diagram;
Fig. 2 is for exchanging electromagnetic interface filter capacitor board schematic diagram;
Fig. 3 is direct current electromagnetic interface filter schematic diagram;
Fig. 4 is direct current EMI capacitor board theory diagram;
Fig. 5 is direct current electromagnetic interface filter structural representation;
Fig. 6 is magnet ring and capacitor board fixed structure chart.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
Be illustrated in figure 1 current transformer and exchange electromagnetic interface filter schematic diagram, as seen from the figure, this filter adopts secondary filter scheme, has Y capacitance over the ground.Inductance L 1A magnet ring and L2A magnet ring, X electric capacity and Y capacitance form current transformer and exchange and hold filter circuit.
Be illustrated in figure 3 current transformer direct current electromagnetic interface filter schematic diagram, as seen from the figure, this filter also adopts secondary filter scheme, over the ground no Y capacitance.Magnet ring LA, X electric capacity composition current transformer DC terminal filter circuit.
No matter be exchange electromagnetic interface filter, direct current electromagnetic interface filter, its capacitance component adopts electric capacity mounting plates structure, and the electric capacity mounting panel that the interchange electromagnetic interface filter of the present embodiment uses comprises C1, C2, C3 tri-parts, as shown in Figure 1; The electric capacity mounting panel that direct current electromagnetic interface filter uses comprises C1, C2 two parts, as shown in Figure 3.
As shown in Figure 6, magnet ring 1 adopts insulated leg 3 to fix and carries out encapsulation and forms magnet ring encapsulating structure 2, and this magnet ring encapsulating structure 2 is provided with the electrical connector for overlapping with current transformer; Electric capacity mounting panel 4 is provided with the binding post for being connected with magnet ring encapsulating structure 2, the direct current binding post J1 in as sub-in the AC terminal in Fig. 2 J1, J2 and Fig. 4.
The electric capacity mounting panel 4 of the present embodiment is fixed on magnet ring encapsulating structure 2 by insulation column 5, as shown in Figure 5.Outlet copper bar is fixed on the inside of magnet ring encapsulating structure by copper bar bearing.
In addition, current transformer electromagnetic interface filter outside uses metallic plate (can for corrosion resistant plate) to carry out construction packages, can better protecting filter magnet ring; Electrical connector adopts outlet copper bar simultaneously, this outlet copper bar uses copper bar bearing to be fixed in encapsulating structure inside, can effectively avoid corresponding electromagnetic interface filter shielding in body copper bar overlap joint process because copper bar rocks the situation occurring that magnet ring or electric capacity mounting panel damage with current transformer.
Above embodiment only understands core concept of the present utility model for helping; the utility model can not be limited with this; for those skilled in the art; every according to thought of the present utility model; the utility model is modified or equivalent replacement; any change done in specific embodiments and applications, all should be included within protection range of the present utility model.
Claims (4)
1. a current transformer electromagnetic interface filter, it is characterized in that: comprise magnet ring and the electric capacity mounting panel being laid with capacitance component, described magnet ring adopts insulated leg to fix and carries out encapsulation formation magnet ring encapsulating structure, and this magnet ring encapsulating structure is provided with the electrical connector for overlapping with current transformer; Described electric capacity mounting panel is provided with the binding post for being connected with magnet ring encapsulating structure.
2. current transformer electromagnetic interface filter according to claim 1, is characterized in that: described electric capacity mounting panel is fixed on magnet ring encapsulating structure by insulation column.
3. current transformer electromagnetic interface filter according to claim 1, is characterized in that: described electrical connector is outlet copper bar, and described outlet copper bar is fixed on the inside of magnet ring encapsulating structure by copper bar bearing.
4. the current transformer electromagnetic interface filter according to claims 1 to 3 any one, is characterized in that: this filter outside adopts metallic plate to encapsulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646183.XU CN204190606U (en) | 2014-10-31 | 2014-10-31 | A kind of current transformer electromagnetic interface filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646183.XU CN204190606U (en) | 2014-10-31 | 2014-10-31 | A kind of current transformer electromagnetic interface filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190606U true CN204190606U (en) | 2015-03-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420646183.XU Active CN204190606U (en) | 2014-10-31 | 2014-10-31 | A kind of current transformer electromagnetic interface filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190606U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431496A (en) * | 2020-03-27 | 2020-07-17 | 一巨自动化装备（上海）有限公司 | Multistage filtering EMC structure |
-
2014
- 2014-10-31 CN CN201420646183.XU patent/CN204190606U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431496A (en) * | 2020-03-27 | 2020-07-17 | 一巨自动化装备（上海）有限公司 | Multistage filtering EMC structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221101 Address after: No. 4138, Sunshine Avenue, Xuchang Economic Development Zone, Henan 461000 Patentee after: Henan Xuji Power Electronics Co.,Ltd. Patentee after: XJ ELECTRIC Co.,Ltd. Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee before: XJ ELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right |