CN201689786U - Dielectric capacitor for printed circuit board - Google Patents
Dielectric capacitor for printed circuit board Download PDFInfo
- Publication number
- CN201689786U CN201689786U CN 201020199661 CN201020199661U CN201689786U CN 201689786 U CN201689786 U CN 201689786U CN 201020199661 CN201020199661 CN 201020199661 CN 201020199661 U CN201020199661 U CN 201020199661U CN 201689786 U CN201689786 U CN 201689786U
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- CN
- China
- Prior art keywords
- capacitor
- printed circuit
- circuit board
- dielectric
- dielectric capacitor
- 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 - Lifetime
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011889 copper foil Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000013500 data storage Methods 0.000 abstract 1
- 238000007639 printing Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229920004934 Dacron® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Parts Printed On Printed Circuit Boards (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
A dielectric capacitor for a printed circuit board solves the problems of space height requirement on and cost of a high-voltage resistant capacitor in a VoIP system circuit, and supply depending on professional manufacturers. The technical scheme includes that the dielectric capacitor structurally comprises parallel board electrodes and a corresponding pole tip terminal and an interpolar middle dielectric. The parallel board electrodes are copper foils attached onto two corresponding side faces of the printed circuit board, and the pole tip terminal is a part of the capacitor and a corresponding electronic device connection wire. The dielectric capacitor has the advantages that a PCB printed circuit board is utilized as a middle dielectric, leads are led out from a top layer and a bottom layer of the printed circuit board by the copper foils to serve as two ends of the capacitor to be connected between a data storage device and a digital signal coder-decoder module, and the dielectric capacitor conforms to high-voltage resistant requirement, reduces occupied space, has simple structure, and saves production cost.
Description
Technical field
The utility model belongs to the production technical field of dielectric capacitance, and relating to a kind of is the capacitor arrangement of dielectric substance with the printing board PCB, and the utility model is specially adapted to being connected between the DAA and digital signal codec modules among the VoIP.
Background technology
So-called electric capacity holds and discharges the electronic devices and components of electric charge exactly.The basic functional principle of electric capacity is exactly a charging and discharging.The purposes of the effect electric capacity of electric capacity is very many, mainly contains following several: stopping direct current, the logical interchange; Bypass decoupling; Coupling, as the connection between two circuit, allow AC signal by and be transferred to the next stage circuit; Filtering; Temperature-compensating; Timing; Tuning; Rectification; Store electrical energy.Electric capacity mainly is divided into following several: electrochemical capacitor, layered ceramic patch capacitor, leaded multilayer ceramic capacitor, safety electric capacity, electric capacity of the dacron, polyester electric capacity, noninductive electric capacity etc.Two parallel metallic plates promptly constitute a capacitor, and can divide into ceramic condenser, thin-film capacitor, Leaded Ceramic Disc Capacitor etc. according to the employed medium difference in the inside.In the circuit system structure of VoIP, need to carry out coupled signal to next digital signal coding/decoding module after the signal process DAA module with capacitor, signal by capacitor generally all is a high-voltage signal, this just needs capacitor should have very strong voltage endurance capability, at present for high voltage bearing generally be to select high voltage bearing ceramic electrical that the electric capacity production firm by specialty makes perhaps thin-film capacitor or Leaded Ceramic Disc Capacitor for use every straight coupling capacitance, this high pressure resistant electric capacity of being made by electric capacity manufacturer has following shortcoming: the cost height, size of devices is big, supply-demand relationship is difficult stable, it is not convenient to have brought for the staff in VoIP system field, in time changes this present situation and can improve work production efficiency and bring good economic benefit.
Summary of the invention
The purpose of this utility model is that the spatial altitude to high pressure resistant electric capacity requires in the VoIP system circuit in order to solve, cost and the supply and demand problem that relies on professional production manufacturer, designed a kind of PCB-type dielectric capacitor, with the printed circuit board (PCB) is the electric capacity that intermediate medium is made, as the isolation capacitance between DAA in the VoIP system circuit and the digital signal codec modules, simple in structure, production cost is low.
The utility model for realizing the technical scheme that goal of the invention adopts is, a kind of use in printed circuit board dielectric capacitor, comprise parallel-plate electrode and corresponding extreme lead-out wire, interpolar intermediate medium in the structure of above dielectric capacitance, parallel-plate electrode is attached to the Copper Foil on the printed circuit board (PCB) corresponding both faces, and extreme lead-out wire is the part of electric capacity and corresponding electronic device connecting line.
Above-mentioned Copper Foil is circular or oval or rectangle.
The beneficial effects of the utility model are: with the PCB printed circuit board (PCB) is intermediate medium, draw the two ends of lead-in wire with Copper Foil respectively at the top of printed circuit board (PCB) layer and bottom layer as electric capacity, be connected between DAA and the digital signal codec modules, meet high pressure resistant requirement, reduced to take up room, simple in structure, save production cost.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 is the structural representation of PCB type capacitor of the present utility model.
Fig. 2 be among Fig. 1 A-A to schematic cross-section.
Fig. 3 is the embodiment that the utility model is used in VoIP system.
Fig. 4 is the schematic diagram that the top layer of printed circuit board (PCB) increases isolated ground when using in VoIP system.
In the accompanying drawing, PCB is a printed circuit board (PCB), and 1a, 1b are Copper Foils, and 2a, 2b are extreme lead-out wires, the 3rd, and isolated ground, DAA representative data access device, Codec represents the digital signal codec.
Embodiment
A kind of use in printed circuit board dielectric capacitor, comprise parallel-plate electrode and corresponding extreme lead-out wire, interpolar intermediate medium in the structure of above dielectric capacitance, parallel-plate electrode is attached to Copper Foil 1a, 1b on the printing board PCB corresponding both faces, and extreme lead-out wire 2a, 2b are the parts of electric capacity and corresponding electronic device connecting line.
Above-mentioned Copper Foil 1a, 1b is circular or oval or rectangle.
During concrete enforcement, carry out design capacitance according to needed capacitor's capacity, as embodiment, design principle is: according to C=ε π R with the Copper Foil of circle
2/ d (S=π R
2) formula, wherein ε is dielectric dielectric constant, and R is the radius of circular Copper Foil, and d is the distance between Copper Foil 1a and the Copper Foil 1b.1), at first to design and determine the appearance value of needed printing board PCB dielectric capacitance; 2), be chosen at the printing board PCB of required use in the electronic product, can determine thickness d; 3), determine the dielectric constant of the printing board PCB that uses; 4), according to C=ε π R
2The anti-R=√ (Cd/ ε ∏) that releases of/d so just can draw the radius of the circular copper sheet that draws on printing board PCB.
To use capacitor arrangement of the present utility model in the VOIP system, referring to Fig. 3 and Fig. 4, between DAA DAA and digital signal codec modules Codec, need to use electric capacity C1, C2, C3 is coupled, on the top of printing board PCB layer and bottom layer, be spaced a distance respectively Copper Foil 1a is set, 1b, by extreme lead-out wire 2a, 2b is connected between two modules of difference, capacitor C 1, C2, spacing between the C3 meets safety and requires to get final product, in addition, for fear of capacitor C 1, C2, interference between the C3, holding C1, C2, the isolated ground 3 of copper sheet material is set between the C3, when noise, can be coupled to big ground, effectively shield.
Claims (2)
1. use in printed circuit board dielectric capacitor, comprise parallel-plate electrode and corresponding extreme lead-out wire, interpolar intermediate medium in the structure of above dielectric capacitance, it is characterized in that: parallel-plate electrode is attached to the Copper Foil (1a, 1b) on printed circuit board (PCB) (PCB) corresponding both faces, and extreme lead-out wire (2a, 2b) is the part of electric capacity and corresponding electronic device connecting line.
2. a kind of use in printed circuit board dielectric capacitor according to claim 1 is characterized in that: described Copper Foil (1a, 1b) is circular or oval or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020199661 CN201689786U (en) | 2010-05-21 | 2010-05-21 | Dielectric capacitor for printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020199661 CN201689786U (en) | 2010-05-21 | 2010-05-21 | Dielectric capacitor for printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689786U true CN201689786U (en) | 2010-12-29 |
Family
ID=43378064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020199661 Expired - Lifetime CN201689786U (en) | 2010-05-21 | 2010-05-21 | Dielectric capacitor for printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689786U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471408A (en) * | 2016-01-12 | 2016-04-06 | 东莞市讯康实业有限公司 | Network port transformer adopting electronic circuit structure to replace magnetic core coil |
| CN105471273A (en) * | 2016-01-12 | 2016-04-06 | 东莞市讯康实业有限公司 | Ethernet interface transformer achieved through PCB |
| CN109270719A (en) * | 2018-12-12 | 2019-01-25 | 惠科股份有限公司 | Display panel and display device |
| TWI650780B (en) * | 2016-01-29 | 2019-02-11 | 東莞市訊康電子科技股份有限公司 | A port transformer made from pcb |
| CN110087382A (en) * | 2018-01-25 | 2019-08-02 | 好庆科技企业股份有限公司 | Circuit substrate |
| CN110769591A (en) * | 2019-11-04 | 2020-02-07 | 绵阳市维博电子有限责任公司 | Electromagnetic compatibility processing method for replacing high-voltage capacitor and PCB copper coating device |
| CN114464458A (en) * | 2022-02-14 | 2022-05-10 | 安徽启电自动化科技有限公司 | Signal isolation capacitor, PCB and signal isolation transmission device |
| CN115206677A (en) * | 2022-08-08 | 2022-10-18 | 珠海格力电器股份有限公司 | Common mode filter capacitor structure, PCB and wiring method thereof |
-
2010
- 2010-05-21 CN CN 201020199661 patent/CN201689786U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471408A (en) * | 2016-01-12 | 2016-04-06 | 东莞市讯康实业有限公司 | Network port transformer adopting electronic circuit structure to replace magnetic core coil |
| CN105471273A (en) * | 2016-01-12 | 2016-04-06 | 东莞市讯康实业有限公司 | Ethernet interface transformer achieved through PCB |
| TWI650780B (en) * | 2016-01-29 | 2019-02-11 | 東莞市訊康電子科技股份有限公司 | A port transformer made from pcb |
| CN110087382A (en) * | 2018-01-25 | 2019-08-02 | 好庆科技企业股份有限公司 | Circuit substrate |
| CN109270719A (en) * | 2018-12-12 | 2019-01-25 | 惠科股份有限公司 | Display panel and display device |
| CN110769591A (en) * | 2019-11-04 | 2020-02-07 | 绵阳市维博电子有限责任公司 | Electromagnetic compatibility processing method for replacing high-voltage capacitor and PCB copper coating device |
| CN114464458A (en) * | 2022-02-14 | 2022-05-10 | 安徽启电自动化科技有限公司 | Signal isolation capacitor, PCB and signal isolation transmission device |
| CN115206677A (en) * | 2022-08-08 | 2022-10-18 | 珠海格力电器股份有限公司 | Common mode filter capacitor structure, PCB and wiring method thereof |
| CN115206677B (en) * | 2022-08-08 | 2024-07-23 | 珠海格力电器股份有限公司 | Common mode filter capacitor structure, PCB and wiring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN GONGJIN ELECTRONIC CO., LTD. Free format text: FORMER NAME: SHENZHEN GONGJIN ELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518000, Shenzhen, Guangdong province Nanshan District Shekou Nanhai Road 1019, 100 surplus medical instrument Park, two floor Patentee after: Shenzhen Gongjin Electronics Co., Ltd. Address before: 518000, Shenzhen, Guangdong province Nanshan District Shekou Nanhai Road 1019, 100 surplus medical instrument Park, two floor Patentee before: Shenzhen Gongjin Electronics Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |