CN202997923U - Power filter - Google Patents
Power filter Download PDFInfo
- Publication number
- CN202997923U CN202997923U CN 201220666065 CN201220666065U CN202997923U CN 202997923 U CN202997923 U CN 202997923U CN 201220666065 CN201220666065 CN 201220666065 CN 201220666065 U CN201220666065 U CN 201220666065U CN 202997923 U CN202997923 U CN 202997923U
- Authority
- CN
- China
- Prior art keywords
- iron core
- coil holder
- crosspiece
- power
- base
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000000694 effects Effects 0.000 abstract description 4
- 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 abstract 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model provides a power filter comprising an iron core, a coil holder and a pedestal. The middle part of the pedestal is provided with a coil holder groove corresponding to the coil holder; the two sides of the pedestal are provided with iron core grooves corresponding to the iron core; the inner cavity of the iron core is provided with cross pieces, so that the iron core is in a specific shape (see figure1); and the radial width of the cross piece is less than the wall width of the iron core. The power filter is characterized by good electromagnetic compatibility effect and good anti-interference performance.
Description
Technical field
The utility model relates to a kind of filter, relates in particular to a kind of power-supply filter of anti-electromagnetic interference.
Background technology
Power-supply filter is exactly the electric equipment that the frequency beyond the frequency of characteristic frequency in power line or this frequency is carried out effective filtering.The function of power-supply filter by access power-supply filter in power line, obtains the power supply signal of a characteristic frequency exactly, or eliminates a power supply signal after characteristic frequency.Power-supply filter of the prior art mostly is rectangle, door shape and " day " font, and the filter leakage inductance of said structure is less, and the electric capacity that distributes in coil is higher, is unfavorable for the electromagnetic compatibility in circuit, and anti-electromagnetic interference performance is poor.
Summary of the invention
The utility model proposes a kind of power-supply filter for above-mentioned deficiency of the prior art, has solved electromagnetic compatibility weak effect in prior art, the problem that interference free performance is weak.
To achieve these goals, the technical solution of the utility model is as follows:
Comprise iron core, coil holder and base, the middle part of base is provided with the coil holder groove corresponding with coil holder, and the both sides of base are provided with the iron core groove corresponding with iron core; Described iron core inwall cavity arranges crosspiece, and iron core forms " order " character form structure; The radial width of crosspiece is wide less than the wall of iron core.
Described crosspiece is rectangle.
The utlity model has following advantage:
1, iron core by crosspiece is set, forms " order " character form structure, has increased the leakage inductance of iron core, has reduced the inside and outside electric capacity that distributes of coil, has improved effect and the interference free performance of electromagnetic compatibility in the circuit.
2, the wide wall less than iron core in the footpath of crosspiece is wide, has reduced the magnetic resistance in the electromagnetic circuit, has strengthened electromagnetic compatibility effect and interference free performance.
3, crosspiece is set to rectangle, and it is convenient to be combined with coil holder, base, and compares with cylindrical crosspiece, has reduced the magnetic resistance in the electromagnetic circuit, has increased power, has obtained unexpected technique effect.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1, iron core, 2, crosspiece, 3, base.
Embodiment
Referring to accompanying drawing, in conjunction with specific embodiments, describe concrete structure of the present utility model in detail.
Embodiment
As shown in Figure 1, comprise iron core 1, coil holder and base 3, the middle part of base 3 is provided with the coil holder groove corresponding with coil holder, and the both sides of base are provided with the iron core groove corresponding with iron core; Described iron core 1 inwall cavity arranges rectangle crosspiece 2, and iron core forms " order " character form structure; The radial width of crosspiece 2 is wide less than the wall of iron core.
Claims (2)
1. power-supply filter, comprise iron core, coil holder and base, and the middle part of base is provided with the coil holder groove corresponding with coil holder, and the both sides of base are provided with the iron core groove corresponding with iron core; It is characterized in that described iron core inwall cavity arranges crosspiece, iron core forms " order " character form structure; The radial width of crosspiece is wide less than the wall of iron core.
2. power-supply filter according to claim 1, is characterized in that described crosspiece is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220666065 CN202997923U (en) | 2012-12-06 | 2012-12-06 | Power filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220666065 CN202997923U (en) | 2012-12-06 | 2012-12-06 | Power filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202997923U true CN202997923U (en) | 2013-06-12 |
Family
ID=48569049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220666065 Expired - Fee Related CN202997923U (en) | 2012-12-06 | 2012-12-06 | Power filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202997923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023304A (en) * | 2012-12-06 | 2013-04-03 | 辽宁省电力有限公司抚顺供电公司 | Power filter |
-
2012
- 2012-12-06 CN CN 201220666065 patent/CN202997923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023304A (en) * | 2012-12-06 | 2013-04-03 | 辽宁省电力有限公司抚顺供电公司 | Power filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130612 Termination date: 20191206 |