CN204906863U - Utilize inductor and wave filter of printed circuit board preparation - Google Patents
Utilize inductor and wave filter of printed circuit board preparation Download PDFInfo
- Publication number
- CN204906863U CN204906863U CN201520396508.8U CN201520396508U CN204906863U CN 204906863 U CN204906863 U CN 204906863U CN 201520396508 U CN201520396508 U CN 201520396508U CN 204906863 U CN204906863 U CN 204906863U
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- inductor
- pcb board
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Abstract
The utility model discloses an utilize the inductor and the wave filter of printed circuit board preparation. Wherein the inductor requires with the PCB board preparation more than two -layer at least. Arranged many printed conductor sections on the different conducting layers of PCB board, the head and the tail both ends of every section printed conductor set up the through -hole, and the printed conductor section that is located different layers is the heliciform through through -hole head and the tail zigzag connection in proper order, forms a wire -wound inductance coils in other words. Owing to utilized the planar through -hole of perpendicular to PCB board wire -wound partly as every circle, plane conducting layer on the unnecessary absorb PCB board of each circle coil conductor, but therefore less area is required, make things convenient for the components and parts overall arrangement, practice thrift the area of PCB board, reduce cost.
Description
Technical field
The utility model relate to a kind of utilize printed substrate to make inductor and filter.
Background technology
Inductor is the important passive component in electronic circuit.Inductor, normally by coil winding, also has partial inductance device to be utilize the deposited copper conductive layer on pcb board to be obtained by suitable wiring in addition, but due to conductive layer be plane, the inductor obtained also can only be film inductor.The inductor of this planar structure needs to take larger pcb board area.When having larger inductance value and a higher figure of merit to ask inductor, need wire must be roomy, the area at this moment taking pcb board will be larger, and can interfere with the layout of components and parts undoubtedly, larger pcb board also can cause cost increase.
In addition, in automobile remote controllers and tire pressure alarm system, the carrier frequency of signal transmission adopts 433.92MHz usually.In order to prevent electromagnetic noise to the interference of receiver, have employed the ceramic Surface Acoustic Wave Filter (SAW filter) for this reason designed and produced specially, be applied in automobile remote controllers and tire pressure alarm system, its price is relatively expensive.In addition, because SAW filter is a kind of electrostatic sensitivity device, when it is connected with receiver antenna, in order to prevent the high-pressure electrostatic from antenna from damaging device, also must be protected at its input adjunction Anti-static device.Cost when these factors cause SAW filter to be applied can raise further.
Utility model content
The utility model provides a kind of inductor utilizing printed substrate to make, and the filter be made up of this inductor.This inductor and filter small volume, cost are lower.
The inductor utilizing printed substrate to make described in the utility model, adopt at least two-layer above pcb board, every layer of pcb board is distributed with many printed circuit cable sections, pcb board is provided with through hole at the head and the tail two ends of every bar printed circuit cable section, the printed circuit cable section being positioned at different layers is cross-linked in the shape of a spiral by the through hole on pcb board successively head and the tail, forms the inductance coil of a coiling.
Owing to make use of through hole perpendicular to pcb board plane as the part of every circle coiling, each circle coil-conductor all need not take the plane conductive layer on pcb board, thus can reduce area occupied, facilitate components' placement, saves the area of pcb board, reduces costs.
The utility model additionally provides a kind of filter, and comprise two above-mentioned inductors, be respectively the first inductor and the second inductor, the first inductor and the second inductor respectively have one end ground connection; First inductor and the second inductor respectively have a tap; The tap of the first inductor is as signal input part, and the tap of the second inductor is as signal output part.
Described filter, by adjustment tap position, can mate with the impedance of source or load easily; Be parallel with electric capacity respectively between two inductor upper ends and ground, by adjustment capacitance, the centre frequency of adjustable filter, is suitable for automobile remote controllers/tire pressure alarm system or other different occasion to make it.
In addition, the direct ground connection of filter first inductor, can prevent antenna from accumulating electrostatic, between itself and the second inductor, signal transmission passes through magnetic Field Coupling, can ensure the good insulation between antenna and receiver, therefore filter itself is again the Anti-static device of excellent performance.Anti-static device need not be added in addition, be conducive to reducing production cost.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the inductor utilizing printed substrate to make.
Fig. 2 is a kind of structural representation of filter.
Embodiment
embodiment 1, the inductor utilizing printed substrate to make as shown in Figure 1, adopt double-layer PCB board, every layer of pcb board is distributed with four sections of printed circuit cables 1, on pcb board, the length of every bar printed circuit cable is consistent, and between two between keeping parallelism, pcb board is provided with through hole 2 at the head and the tail two ends of every bar printed circuit cable, the tail end of the Article 1 printed circuit cable on ground floor pcb board is connected by the head end of through hole with the Article 1 printed circuit cable on second layer pcb board, the tail end of the Article 1 printed circuit cable on second layer pcb board is connected by the head end of through hole with the Article 2 printed circuit cable on ground floor pcb board, the tail end of the Article 2 printed circuit cable on ground floor pcb board is connected by the head end of through hole with the Article 2 printed circuit cable on second layer pcb board, the like.The printed circuit cable being positioned at different layers is cross-linked in the shape of a spiral by the through hole on pcb board successively head and the tail, thus forms an inductor utilizing pcb board to be made.
embodiment 2.A kind of filter as shown in Figure 2, comprise two inductors mentioned above, be respectively the first inductor and the second inductor, the first inductor and the second inductor respectively have one end ground connection (c1; A2); First inductor and the second inductor are respectively provided with tap, and the tap b1 of the first inductor is as signal input part (being connected with source), and the tap b2 of the second inductor is as signal output part.Adjustment tap position, can easily with the impedance matching of source or load; First inductor and be parallel with electric capacity respectively between the second inductor upper end (a1, a2) and ground (capacity is c), by adjustment capacitance, the centre frequency of adjustable filter, with the instructions for use making it be applicable to automobile remote controllers/tire pressure alarm system or other different occasion.
In addition, the direct ground connection of filter first inductor, can prevent the accumulation of static electricity of antenna, and between itself and the second inductor, signal transmission passes through magnetic Field Coupling, can ensure the good insulation between antenna and receiver, therefore filter itself is again the Anti-static device of excellent performance.
Claims (3)
1. the inductor utilizing printed substrate to make, is characterized in that: adopt the pcb board of at least two-layer above conductive layer to make; Pcb board different conductive layers is furnished with many printed circuit cable sections, and the head and the tail two ends of every section of printed circuit cable arrange through hole, and the printed circuit cable section being positioned at different layers is cross-linked in the shape of a spiral by through hole successively head and the tail, forms the inductance coil of a coiling.
2. a filter, comprise two inductors as claimed in claim 1, be respectively the first inductor and the second inductor, it is characterized in that: the first inductor and the second inductor respectively have one end ground connection, the printed circuit cable of the first inductor and the second inductor is respectively provided with tap, the tap of the first inductor is as signal input part, and the tap of the second inductor is as signal output part.
3. filter according to claim 2, is characterized in that: the first inductor and be parallel with electric capacity respectively between the second inductor upper end and ground, by adjustment capacitance, and the centre frequency of adjustment filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520396508.8U CN204906863U (en) | 2015-06-10 | 2015-06-10 | Utilize inductor and wave filter of printed circuit board preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520396508.8U CN204906863U (en) | 2015-06-10 | 2015-06-10 | Utilize inductor and wave filter of printed circuit board preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204906863U true CN204906863U (en) | 2015-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520396508.8U Active CN204906863U (en) | 2015-06-10 | 2015-06-10 | Utilize inductor and wave filter of printed circuit board preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204906863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957691A (en) * | 2016-07-15 | 2016-09-21 | 中国电子科技集团公司第十三研究所 | Three-dimensional winding inductor, transformer, equalizer and LC filter |
| CN114169486A (en) * | 2021-12-10 | 2022-03-11 | 深圳市华鼎星科技有限公司 | NFC transparent sensor, display device and manufacturing method of transparent sensor |
-
2015
- 2015-06-10 CN CN201520396508.8U patent/CN204906863U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957691A (en) * | 2016-07-15 | 2016-09-21 | 中国电子科技集团公司第十三研究所 | Three-dimensional winding inductor, transformer, equalizer and LC filter |
| CN114169486A (en) * | 2021-12-10 | 2022-03-11 | 深圳市华鼎星科技有限公司 | NFC transparent sensor, display device and manufacturing method of transparent sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |