FR3112913B1 - Dispositif de filtrage inductif à limitation d’échauffement - Google Patents
Dispositif de filtrage inductif à limitation d’échauffement Download PDFInfo
- Publication number
- FR3112913B1 FR3112913B1 FR2007872A FR2007872A FR3112913B1 FR 3112913 B1 FR3112913 B1 FR 3112913B1 FR 2007872 A FR2007872 A FR 2007872A FR 2007872 A FR2007872 A FR 2007872A FR 3112913 B1 FR3112913 B1 FR 3112913B1
- Authority
- FR
- France
- Prior art keywords
- magnetic core
- screen
- electric cable
- filtering device
- temperature rise
- 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.)
- Active
Links
- 238000001914 filtration Methods 0.000 title abstract 2
- 230000001939 inductive effect Effects 0.000 title abstract 2
- 230000005674 electromagnetic induction Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F17/062—Toroidal core with turns of coil around it
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/288—Shielding
- H01F27/2885—Shielding with shields or electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F2017/065—Core mounted around conductor to absorb noise, e.g. EMI filter
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F2027/348—Preventing eddy currents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
- Filters And Equalizers (AREA)
Abstract
L’invention concerne un dispositif de filtrage inductif comprenant : - un noyau magnétique (12) - au moins un câble électrique (14) enroulé autour du noyau magnétique (12) en formant au moins une spire, le câble électrique (14) étant destiné à véhiculer un signal électrique possédant au moins une composante alternative indésirable se superposant à une fréquence fondamentale du signal électrique et - un écran (20) électriquement conducteur, isolé électriquement du câble électrique (14) et du noyau magnétique (12),l’écran (20) étant disposé entre le noyau magnétique (12) et le câble électrique (14) de façon à permettre la génération dans l’écran (20), par induction électromagnétique, d’un courant dont la fréquence est supérieure à la fréquence fondamentale, l’écran (20) étant configuré de façon à ne pas permettre le circulation d’un courant dans une direction parallèle à celle de la ou des spires formées par l’enroulement du câble électrique (14) autour du noyau magnétique. Figure pour l’abrégé : Fig. 1
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2007872A FR3112913B1 (fr) | 2020-07-27 | 2020-07-27 | Dispositif de filtrage inductif à limitation d’échauffement |
EP21187083.7A EP3945533A1 (fr) | 2020-07-27 | 2021-07-22 | Dispositif de filtrage inductif a limitation d'echauffement |
US17/383,078 US20220028594A1 (en) | 2020-07-27 | 2021-07-22 | Inductive filtering device limiting heat generation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2007872A FR3112913B1 (fr) | 2020-07-27 | 2020-07-27 | Dispositif de filtrage inductif à limitation d’échauffement |
FR2007872 | 2020-07-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3112913A1 FR3112913A1 (fr) | 2022-01-28 |
FR3112913B1 true FR3112913B1 (fr) | 2023-01-27 |
Family
ID=74045525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR2007872A Active FR3112913B1 (fr) | 2020-07-27 | 2020-07-27 | Dispositif de filtrage inductif à limitation d’échauffement |
Country Status (3)
Country | Link |
---|---|
US (1) | US20220028594A1 (fr) |
EP (1) | EP3945533A1 (fr) |
FR (1) | FR3112913B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114242412B (zh) * | 2021-11-04 | 2024-08-27 | 华为数字能源技术有限公司 | 磁元件和电子设备 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4579448B2 (ja) * | 2000-06-12 | 2010-11-10 | マスプロ電工株式会社 | 雑音除去装置 |
JP2017005572A (ja) * | 2015-06-12 | 2017-01-05 | Necトーキン株式会社 | ノイズフィルタ、多段接続lcフィルタ及び医療用機器 |
-
2020
- 2020-07-27 FR FR2007872A patent/FR3112913B1/fr active Active
-
2021
- 2021-07-22 US US17/383,078 patent/US20220028594A1/en active Pending
- 2021-07-22 EP EP21187083.7A patent/EP3945533A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
US20220028594A1 (en) | 2022-01-27 |
EP3945533A1 (fr) | 2022-02-02 |
FR3112913A1 (fr) | 2022-01-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 2 |
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PLSC | Publication of the preliminary search report |
Effective date: 20220128 |
|
PLFP | Fee payment |
Year of fee payment: 3 |
|
PLFP | Fee payment |
Year of fee payment: 4 |
|
PLFP | Fee payment |
Year of fee payment: 5 |