CN205754237U - A kind of wide frequency ranges exchange electromagnetic interface filter - Google Patents
A kind of wide frequency ranges exchange electromagnetic interface filter Download PDFInfo
- Publication number
- CN205754237U CN205754237U CN201620566513.3U CN201620566513U CN205754237U CN 205754237 U CN205754237 U CN 205754237U CN 201620566513 U CN201620566513 U CN 201620566513U CN 205754237 U CN205754237 U CN 205754237U
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- Prior art keywords
- iron core
- electromagnetic interface
- interface filter
- common mode
- frequency ranges
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Abstract
This utility model provides a kind of wide frequency ranges exchange electromagnetic interface filter.This wave filter includes the shell sealed and the filtering body being fixed in shell, described filtering body includes three-phase common mode reactor, differential mode capacitor, common mode capacitance, resistance and for connecting described three-phase common mode reactor, differential mode capacitor, common mode capacitance, the triple line of resistance, the iron core of described three-phase common mode reactor includes ferrite and nanocrystalline or permalloy iron core, and described ferrite is superimposed with nanocrystalline or permalloy iron core.The three-phase common mode core of reactor of three-phase alternating current electromagnetic interface filter of the present utility model is made up of with nanocrystalline or permalloy iron core ferrite, can guarantee that have enough inductance value, thus have wider frequency filtering ability under high and low frequency.
Description
Technical field
This utility model relates to filter field, particularly relates to a kind of wide frequency ranges exchange electromagnetic interface filter.
Background technology
The low-pass filter circuit that three-phase alternating current electromagnetic interface filter is made up of current-limiting reactor and shnt capacitor, its effect
It is permission equipment frequency signal access arrangement when normally working, and high frequency disturbs signal have bigger inhibition.
At present, the filter reactor iron core of existing exchange electromagnetic interface filter is made up of the iron core of homogenous material, it is impossible to simultaneously
Ensure, under high and low frequency, there is enough inductance value, thus it cannot be guaranteed that there is wider frequency filtering ability.
Utility model content
This utility model aims to overcome that the deficiency that prior art exists, thus provides a kind of wide frequency ranges exchange
Electromagnetic interface filter.
For achieving the above object, this utility model provides wide frequency ranges exchange electromagnetic interface filter.This wave filter includes close
The shell sealed and the filtering body being fixed in shell, described filtering body includes three-phase common mode reactor, differential mode capacitor, is total to
Mould electric capacity, resistance and for connecting described three-phase common mode reactor, differential mode capacitor, common mode capacitance, the triple line of resistance, described three
The iron core of phase common mode reactor includes that ferrite and nanocrystalline or permalloy iron core, described ferrite close with nanocrystalline or perm
Aufe core is superimposed.
Preferably, described ferrite is superimposed up and down with nanocrystalline or permalloy iron core.
Preferably, in described ferrite is enclosed within nanocrystalline or permalloy iron core.
Preferably, described nanocrystalline or permalloy iron core sleeve is in ferrite.
Preferably, together with described ferrite is screwed in nanocrystalline or permalloy iron core.
Preferably, described ferrite is bonded together by glue with nanocrystalline or permalloy iron core.
Preferably, described shell side is provided with 3 through holes, is respectively used to draw the current input terminal of each phase line, described outside
The opposite side of shell is provided with 3 through holes, is respectively used to draw the current output terminal of each phase line.
Preferably, the thickness of described shell is 1-5 millimeter.
Preferably, the space between described shell and filtering body is filled with by thermal grease.
The three-phase common mode core of reactor of three-phase alternating current electromagnetic interface filter of the present utility model is by ferrite and nanocrystalline or slope
Alloy-iron core composition, not can guarantee that have enough inductance value under high and low frequency, thus has wider frequency filtering energy
Power.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model exchange electromagnetic interface filter；
Fig. 2 is the three-phase common mode reactor iron core structure schematic diagram of the exchange electromagnetic interface filter of this utility model embodiment one；
Fig. 3 is the three-phase common mode reactor iron core structure schematic diagram of the exchange electromagnetic interface filter of this utility model embodiment two；
Fig. 4 is the three-phase common mode reactor iron core structure schematic diagram of the exchange electromagnetic interface filter of this utility model embodiment three；
Fig. 5 is a kind of shell mechanism schematic diagram of this utility model exchange electromagnetic interface filter；
Fig. 6 is the another kind of shell mechanism schematic diagram of this utility model exchange electromagnetic interface filter.
Detailed description of the invention
For the technical scheme making those skilled in the art be better understood from this utility model embodiment, and make this reality
Can become apparent from understandable by the above-mentioned purpose of new embodiment, feature and advantage, below by drawings and Examples, to this reality
It is described in further detail by novel technical scheme.Based on the embodiment in this utility model, ordinary skill people
All other embodiments that member is obtained under not making creative work premise, broadly fall into the model of this utility model protection
Enclose.
Fig. 1 is the structural representation of this utility model exchange electromagnetic interface filter.
As it is shown in figure 1, this utility model exchange electromagnetic interface filter includes the shell 1 sealed and arranges filtering in the enclosure
Body 2.Space between shell 1 and filtering body 2 can be filled with by thermal grease.
Shell 1 side is provided with 3 through holes 13, is respectively used to draw the current input terminal of each phase line, and the opposite side of shell 1 is also
It is provided with 3 through holes 13, is respectively used to draw the current output terminal of each phase line.
Filtering body 2 includes three-phase common mode reactor L1, differential mode capacitor C1, C2, C3, C4, C5, C6, common mode capacitance C7, electricity
Resistance R1, R2, R3, R4, R5, R6 and being used for connect described three-phase common mode reactor L1, differential mode capacitor C1, C2, C3, C4, C5, C6,
Common mode capacitance C7 and the triple line of resistance R1, R2, R3, R4, R5, R6.
Connect three differential mode capacitors C1, C2, C3 before three-phase common mode reactor L1 and constitute differential mode filter circuit, three differential mode electricity
Hold C1, C2, C3 to be connected between triple line in the way of star-like connection.Differential mode capacitor and common mode is connected after three-phase common mode reactor L1
Electric capacity constitutes differential mode common mode hybrid filter IC.Three differential mode capacitors C4, C5, C6 are connected on three-phase input in the way of star-like connection
Between line, its neutral point is again by a common mode capacitance C7 ground connection, and differential mode capacitor C1, C2, C3, C4, C5, C6 is also respectively also simultaneously
Connection resistance R1, R2, R3, R4, R5, R6.
Fig. 2 is the three-phase common mode reactor iron core structure schematic diagram of the exchange electromagnetic interface filter of this utility model embodiment one.
As in figure 2 it is shown, the iron core of three-phase common mode reactor includes ferrite 21 and nanocrystalline or permalloy iron core 22, ferrum
Oxysome 21 is superimposed with nanocrystalline or permalloy iron core about 22.Wherein, described ferrite 21 can be with nanocrystalline or slope
Alloy-iron core 22 is not screwed in together, it is possible to be bonded together by glue.
Fig. 3 is the three-phase common mode reactor iron core structure schematic diagram of the exchange electromagnetic interface filter of this utility model embodiment two.
As it is shown on figure 3, the iron core of three-phase common mode reactor includes ferrite 21 and nanocrystalline or permalloy iron core 22, ferrum
Oxysome 21 is enclosed within nanocrystalline or permalloy iron core 22.Wherein, ferrite 21 can lead to nanocrystalline or permalloy iron core 22
Cross screw to be fixed together, it is possible to be bonded together by glue.
Fig. 4 is the three-phase common mode reactor iron core structure schematic diagram of the exchange electromagnetic interface filter of this utility model embodiment three.
As shown in Figure 4, the iron core of three-phase common mode reactor includes ferrite 21 and nanocrystalline or permalloy iron core 22, receives
Rice is brilliant or permalloy iron core 22 is enclosed within ferrite 21.Wherein, ferrite 21 can lead to nanocrystalline or permalloy iron core 22
Cross screw to be fixed together, it is possible to be bonded together by glue.
Fig. 5 is a kind of shell mechanism schematic diagram of this utility model exchange electromagnetic interface filter.
The shell 1 of the exchange electromagnetic interface filter in the present embodiment is by the anti-electric layer 11 of anti-electric jamming and magnetic-field interference
Anti-magnetosphere 12 is superimposed.Anti-electric layer 11 is inner wall layer, and anti-magnetosphere 12 is outer wall layer.
Wherein, together with anti-electric layer 11 can be screwed in anti-magnetosphere 12.Also can be bonded together by glue.Outward
The thickness of shell 1 is 1-5 millimeter, depending on concrete thickness can be according to interference of electromagnetic field situation.The material of anti-electric layer 11 can use to be had
The aluminum of the ability of anti-electrical interference or copper, the material of anti-magnetosphere 12 can use ferrum or the permalloy of the ability with diamagnetic interference.
Shell 1 side is provided with 3 through holes 13, is respectively used to draw the current input terminal of each phase line, and the opposite side of shell 1 is also
It is provided with 3 through holes 13, is respectively used to draw the current output terminal of each phase line.
Fig. 6 is the another kind of shell mechanism schematic diagram of this utility model exchange electromagnetic interface filter.
As shown in Figure 6, the shell 1 of the exchange electromagnetic interface filter in the present embodiment is by the anti-electric layer 11 of anti-electric jamming and anti-
The anti-magnetosphere 12 of magnetic interference is superimposed.Anti-electric layer 11 is outer wall layer, and anti-magnetosphere 12 is inner wall layer.
Wherein, together with anti-electric layer 11 can be screwed in anti-magnetosphere 12.Also can be bonded together by glue.Outward
The thickness of shell 1 is 1-5 millimeter, depending on concrete thickness can be according to interference of electromagnetic field situation.The material of anti-electric layer 11 can use to be had
The aluminum of the ability of anti-electrical interference or copper, the material of anti-magnetosphere 12 can use ferrum or the permalloy of the ability with diamagnetic interference.
Shell 1 side is provided with 3 through holes 13, is respectively used to draw the current input terminal of each phase line, and the opposite side of shell 1 is also
It is provided with 3 through holes 13, is respectively used to draw the current output terminal of each phase line.
In sum, the three-phase common mode core of reactor of three-phase alternating current electromagnetic interface filter of the present utility model by ferrite with
Nanocrystalline or permalloy iron core forms, and can guarantee that have enough inductance value, thus have wider under high and low frequency
Frequency filtering ability.Additionally shell uses anti-electric layer and anti-magnetosphere, can play the effect of dual anti-electromagnetic interference, anti-electromagnetic interference
Respond well.
Above-described detailed description of the invention, is entered the purpose of this utility model, technical scheme and beneficial effect
One step describes in detail, be it should be understood that and the foregoing is only detailed description of the invention of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all within spirit of the present utility model and principle, any amendment, the equivalent made are replaced
Change, improvement etc., within should be included in protection domain of the present utility model.
Claims (9)
1. a wide frequency ranges exchange electromagnetic interface filter, including the shell sealed and the filtering body being fixed in shell, institute
State filtering body and include three-phase common mode reactor, differential mode capacitor, common mode capacitance, resistance and for connecting described three-phase common mode reactance
Device, differential mode capacitor, common mode capacitance, the triple line of resistance, it is characterised in that the iron core of described three-phase common mode reactor includes ferrum oxygen
Body and nanocrystalline or permalloy iron core, described ferrite is superimposed with nanocrystalline or permalloy iron core.
Wide frequency ranges the most according to claim 1 exchange electromagnetic interface filter, it is characterised in that described ferrite and nanometer
Brilliant or permalloy iron core is superimposed up and down.
Wide frequency ranges the most according to claim 1 exchange electromagnetic interface filter, it is characterised in that described ferrite is enclosed within to be received
In rice crystalline substance or permalloy iron core.
Wide frequency ranges the most according to claim 1 exchange electromagnetic interface filter, it is characterised in that described nanocrystalline or perm
Alloy-iron core is enclosed within ferrite.
5. exchange electromagnetic interface filter according to the wide frequency ranges one of Claims 1-4 Suo Shu, it is characterised in that described ferrite
Together with being screwed in nanocrystalline or permalloy iron core.
6. exchange electromagnetic interface filter according to the wide frequency ranges one of Claims 1-4 Suo Shu, it is characterised in that described ferrite
It is bonded together by glue with nanocrystalline or permalloy iron core.
Wide frequency ranges the most according to claim 1 exchange electromagnetic interface filter, it is characterised in that described shell side is provided with 3
Individual through hole, is respectively used to draw the current input terminal of each phase line, and the opposite side of described shell is provided with 3 through holes, is respectively used to draw
Go out the current output terminal of each phase line.
Wide frequency ranges the most according to claim 1 exchange electromagnetic interface filter, it is characterised in that the thickness of described shell is
1-5 millimeter.
Wide frequency ranges the most according to claim 1 exchange electromagnetic interface filter, it is characterised in that described shell is with filtering originally
Space between body is filled with by thermal grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620566513.3U CN205754237U (en) | 2016-06-14 | 2016-06-14 | A kind of wide frequency ranges exchange electromagnetic interface filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620566513.3U CN205754237U (en) | 2016-06-14 | 2016-06-14 | A kind of wide frequency ranges exchange electromagnetic interface filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205754237U true CN205754237U (en) | 2016-11-30 |
Family
ID=57360204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620566513.3U Expired - Fee Related CN205754237U (en) | 2016-06-14 | 2016-06-14 | A kind of wide frequency ranges exchange electromagnetic interface filter |
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| Country | Link |
|---|---|
| CN (1) | CN205754237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111327285A (en) * | 2020-04-13 | 2020-06-23 | 中国电子科技集团公司第九研究所 | Broadband high-power EMI filter for new energy automobile |
-
2016
- 2016-06-14 CN CN201620566513.3U patent/CN205754237U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111327285A (en) * | 2020-04-13 | 2020-06-23 | 中国电子科技集团公司第九研究所 | Broadband high-power EMI filter for new energy automobile |
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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: 20170619 Address after: 210000 K10 building, Wanshou Road Economic Development Zone, Pukou, Jiangsu, China, No. 15, Patentee after: NANJING JIARUISI ELECTRIC POWER TECHNOLOGY CO., LTD. Address before: 211111, Nanjing, Jiangsu province Jiangning District 2 Ting West Road, 100 Lakes Science and Technology Industrial Park 23 Patentee before: Nanjing Bonawei Electronic Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170614 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |