WO2020034640A1 - 管状滤波器 - Google Patents
管状滤波器 Download PDFInfo
- Publication number
- WO2020034640A1 WO2020034640A1 PCT/CN2019/079891 CN2019079891W WO2020034640A1 WO 2020034640 A1 WO2020034640 A1 WO 2020034640A1 CN 2019079891 W CN2019079891 W CN 2019079891W WO 2020034640 A1 WO2020034640 A1 WO 2020034640A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pcb
- tubular filter
- capacitor
- pcb board
- housing
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 96
- 239000003292 glue Substances 0.000 claims description 27
- 239000011324 bead Substances 0.000 claims description 9
- 238000003780 insertion Methods 0.000 abstract description 16
- 230000037431 insertion Effects 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 10
- VAHKBZSAUKPEOV-UHFFFAOYSA-N 1,4-dichloro-2-(4-chlorophenyl)benzene Chemical compound C1=CC(Cl)=CC=C1C1=CC(Cl)=CC=C1Cl VAHKBZSAUKPEOV-UHFFFAOYSA-N 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229920006335 epoxy glue Polymers 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
Definitions
- FIG. 11 is a schematic structural diagram of a PCB capacitor component in a tubular filter provided in Embodiment 4 of the present invention.
- the front side of the PCB 31 is provided with a plurality of pairs of connection electrodes 314 for electrically connecting the chip capacitor 32.
- the connection electrodes 314 are arranged in pairs to connect the two poles of the chip capacitor 32 respectively.
- Each pair of connection electrodes 314 is disposed on the front surface of the PCB board 31 so that the ground electrodes 313 are spaced apart to reduce mutual influence.
- the chip capacitor 32 is a ceramic chip capacitor.
- the number of chip capacitors 32 may be two, three, four, and so on.
- these chip capacitors 32 are arranged on the PCB board 31 in a circular array with the center of the PCB board 31 as the axis of symmetry to better symmetric layout, facilitate design, and reduce Insertion loss.
- the PCB capacitor assembly 30 is located at the first end of the casing 10, and the inductor 23 is located at the second end of the casing 10. In order to facilitate the layout of the PCB capacitor assembly 30 and the inductor 23, the volume of the manufactured tubular filter 100 is reduced.
- a first insulating plate 24 is provided in the casing 10, and the first insulating plate 24 is located at the inductor 23 near the PCB capacitor.
- One side of the assembly 30. The provision of the first insulating plate 24 can better prevent the electromagnetic interference between the PCB capacitor assembly 30 and the inductor 23, reduce the insertion loss, and prevent the PCB capacitor assembly 30 from short-circuiting, thereby improving the stability of the tubular filter 100.
- a second insulating plate 25 is provided in the casing 10, and the second insulating plate 25 is located on the inductor 23 away from the PCB capacitor.
- One side of the assembly 30 By providing the second insulating plate 25, the influence of the outside on the inductor 23 can be reduced, and at the same time, the inductor 23 can be better protected.
- the first insulating plate 24 and the second insulating plate 25 are respectively disposed on both sides of the inductor 23, which can better protect the inductor 23.
- a magnetic bead 26 is provided between the PCB capacitor assembly 30 and the inductor 23, and a magnetic bead 26 is provided for better suppression.
- High-frequency noise and spike interference absorb static pulses and reduce insertion loss.
- the magnetic beads 26 are located at the center of the PCB board 31. In order to facilitate the installation of the magnetic beads 26 and also facilitate the positioning of the magnetic beads 26. Further, the magnetic beads 26 bottom against the first insulating plate 24 to make full use of the space in the housing 10, reduce the volume, and better separate the PCB capacitor assembly 30 from the inductor 23, thereby reducing the PCB capacitor assembly 30. Influence of electromagnetic interference with the inductor 23.
- the first end of the casing 10 is provided with a retaining ring 14, and the outer side of the retaining ring 14 is connected to the inner surface of the casing 10. Therefore, the first insulating glue 211 can be stopped by the retaining ring 14 to better prevent the first insulating glue 211 from falling off, and then better support the first terminal 21.
- a ring groove 141 is provided on the inner surface of the retaining ring 14, and the first insulating glue 211 will fill the ring groove 141 to Better fix the first insulating glue 211.
- the insertion loss index from the frequency range of 10KHz-1GHz can reach the level of using a ceramic through-capacitor, which achieves overall potting, improves product reliability, and reduces product cost. And it can realize the overall potting of the tubular filter 100, anti-rotation and anti-dial of the terminal, improve the anti-vibration and impact resistance of the tubular filter 100, avoid the short-circuit failure problem caused by the direct use of ceramic through-capacitors, and improve the reliability of the product. Meet the test requirements of GJB1518A-2015 and GJB360B.
- the difference between the tubular filter of this embodiment and the tubular filter of the first embodiment is:
- the other structures of the tubular filter of this embodiment are the same as the other structures of the tubular filter of the first embodiment, and details are not described herein again.
- the front side of the PCB board 31 is provided with four pairs of connection electrodes 314, then four PCB capacitors 32 need to be installed on the PCB board 31. Further, the four chip capacitors 32 are arranged in a circular array with the central axis of the PCB board 31 as a symmetry axis.
- the other structures of the tubular filter of this embodiment are the same as the other structures of the tubular filter of the first embodiment, and details are not described herein again.
- tubular filter of this embodiment Please refer to FIG. 10 and FIG. 11.
- tubular filter of the first embodiment is:
- the front side of the PCB board 31 is provided with six pairs of connection electrodes 314, so six PCB capacitors 32 need to be installed on the PCB board 31. Further, the six patch capacitors 32 are arranged in a circular array with the central axis of the PCB board 31 as a symmetry axis.
- connection electrodes 314 6 pairs of connection electrodes 314 form 6 space regions on the front surface of the PCB 31, and two grooves 315 are respectively located in two opposite space regions, and the other Pads 316 are provided on the four space areas to facilitate circuit connection.
- the other structures of the tubular filter of this embodiment are the same as the other structures of the tubular filter of the first embodiment, and details are not described herein again.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Filters And Equalizers (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
- Structure Of Printed Boards (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
Claims (10)
- 管状滤波器,其特征在于:包括具有第一端与第二端的外壳、设于所述外壳中的PCB电容组件、设于所述外壳中的电感器、安装于所述外壳之第一端的第一端子和安装于所述外壳之第二端的第二端子,所述PCB电容组件包括集成有穿心电容的PCB板和安装于所述PCB板上的贴片电容。
- 如权利要求1所述的管状滤波器,其特征在于:所述PCB板为多层印刷电路板,且多层所述印刷电路板形成所述穿心电容。
- 如权利要求2所述的管状滤波器,其特征在于:所述PCB板的中心设有通孔,所述通孔的内壁上设有中心电极,所述PCB板的背面设有接地电极。
- 如权利要求3所述的管状滤波器,其特征在于:所述接地电极为两个,两个所述接地电极沿所述PCB板的周边延伸设置。
- 如权利要求1-4任一项所述的管状滤波器,其特征在于:所述PCB板的正面设有用于电性连接所述贴片电容的若干对连接电极。
- 如权利要求5所述的管状滤波器,其特征在于:所述贴片电容成对设于所述PCB板上,各对所述贴片电容以所述PCB板的中心为对称轴呈环形阵列设于所述PCB板。
- 如权利要求1-4任一项所述的管状滤波器,其特征在于:所述外壳中设有第一绝缘板,所述第一绝缘板位于所述电感器靠近所述PCB电容组件的一面。
- 如权利要求1-4任一项所述的管状滤波器,其特征在于:所述外壳中设有第二绝缘板,所述第二绝缘板位于所述电感器背离所述PCB电容组件的一面。
- 如权利要求1-4任一项所述的管状滤波器,其特征在于:所述PCB电容组件与所述电感器之间设有磁珠。
- 如权利要求1-4任一项所述的管状滤波器,其特征在于:所述外壳中填充有固化胶。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019524057A JP6865279B2 (ja) | 2019-03-14 | 2019-03-27 | 筒状フィルタ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910194190.8 | 2019-03-14 | ||
CN201910194190.8A CN109935947B (zh) | 2019-03-14 | 2019-03-14 | 管状滤波器 |
Publications (1)
Publication Number | Publication Date |
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WO2020034640A1 true WO2020034640A1 (zh) | 2020-02-20 |
Family
ID=66986928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2019/079891 WO2020034640A1 (zh) | 2019-03-14 | 2019-03-27 | 管状滤波器 |
Country Status (3)
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---|---|
JP (1) | JP6865279B2 (zh) |
CN (1) | CN109935947B (zh) |
WO (1) | WO2020034640A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112469196A (zh) * | 2019-09-06 | 2021-03-09 | 中兴通讯股份有限公司 | 一种主板、噪声降噪方法及终端 |
CN114914645B (zh) * | 2022-05-05 | 2024-07-19 | 福建火炬电子科技股份有限公司 | 一种多芯组电容滤波器及其生产方法 |
Citations (6)
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CN1447358A (zh) * | 2002-03-26 | 2003-10-08 | 株式会社村田制作所 | 两端电容器以及三端电容器的安装结构 |
US20100033893A1 (en) * | 2008-08-08 | 2010-02-11 | Hamilton Sundstrand Corporation | Printed wiring board feed-through capacitor |
CN105592674A (zh) * | 2014-10-21 | 2016-05-18 | 深圳振华富电子有限公司 | 电磁干扰滤波器 |
CN107093992A (zh) * | 2017-05-23 | 2017-08-25 | 深圳振华富电子有限公司 | 滤波器 |
JP2018014430A (ja) * | 2016-07-21 | 2018-01-25 | Tdk株式会社 | 積層貫通コンデンサ及び電子部品装置 |
CN108155888A (zh) * | 2018-01-05 | 2018-06-12 | 北京航天微电科技有限公司 | 一种用于抑制电源电磁干扰的ltcc大功率emi滤波器 |
Family Cites Families (10)
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JPH0669746A (ja) * | 1992-08-18 | 1994-03-11 | Mitsubishi Electric Corp | ノイズフィルタ |
US5959829A (en) * | 1998-02-18 | 1999-09-28 | Maxwell Energy Products, Inc. | Chip capacitor electromagnetic interference filter |
US6999818B2 (en) * | 2003-05-23 | 2006-02-14 | Greatbatch-Sierra, Inc. | Inductor capacitor EMI filter for human implant applications |
KR101034491B1 (ko) * | 2009-03-19 | 2011-05-20 | 성진씨앤티(주) | 방해 전자파 차폐용 컨택트 구조 |
JP2013073951A (ja) * | 2011-09-26 | 2013-04-22 | Tdk Corp | 貫通コンデンサ内蔵多層基板及び貫通コンデンサ内蔵多層基板の実装構造 |
CN204206719U (zh) * | 2014-10-22 | 2015-03-11 | 深圳振华富电子有限公司 | 电磁干扰滤波器 |
CN204289658U (zh) * | 2014-11-20 | 2015-04-22 | 重庆大及电子科技有限公司 | 集成滤波器 |
CN205430887U (zh) * | 2016-03-28 | 2016-08-03 | 山东超越数控电子有限公司 | 一种基于穿心电容的滤波阵列模块 |
CN205945668U (zh) * | 2016-08-22 | 2017-02-08 | 重庆大及电子科技有限公司 | 一种集成式组合滤波板 |
CN207070023U (zh) * | 2017-05-23 | 2018-03-02 | 深圳振华富电子有限公司 | 滤波器 |
-
2019
- 2019-03-14 CN CN201910194190.8A patent/CN109935947B/zh active Active
- 2019-03-27 WO PCT/CN2019/079891 patent/WO2020034640A1/zh active Application Filing
- 2019-03-27 JP JP2019524057A patent/JP6865279B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1447358A (zh) * | 2002-03-26 | 2003-10-08 | 株式会社村田制作所 | 两端电容器以及三端电容器的安装结构 |
US20100033893A1 (en) * | 2008-08-08 | 2010-02-11 | Hamilton Sundstrand Corporation | Printed wiring board feed-through capacitor |
CN105592674A (zh) * | 2014-10-21 | 2016-05-18 | 深圳振华富电子有限公司 | 电磁干扰滤波器 |
JP2018014430A (ja) * | 2016-07-21 | 2018-01-25 | Tdk株式会社 | 積層貫通コンデンサ及び電子部品装置 |
CN107093992A (zh) * | 2017-05-23 | 2017-08-25 | 深圳振华富电子有限公司 | 滤波器 |
CN108155888A (zh) * | 2018-01-05 | 2018-06-12 | 北京航天微电科技有限公司 | 一种用于抑制电源电磁干扰的ltcc大功率emi滤波器 |
Also Published As
Publication number | Publication date |
---|---|
CN109935947B (zh) | 2023-11-10 |
JP2020533780A (ja) | 2020-11-19 |
CN109935947A (zh) | 2019-06-25 |
JP6865279B2 (ja) | 2021-04-28 |
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