CN204206608U - A kind of FPC plate - Google Patents
A kind of FPC plate Download PDFInfo
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- CN204206608U CN204206608U CN201420764505.0U CN201420764505U CN204206608U CN 204206608 U CN204206608 U CN 204206608U CN 201420764505 U CN201420764505 U CN 201420764505U CN 204206608 U CN204206608 U CN 204206608U
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Abstract
The utility model relates to a kind of FPC plate; there is plate body; plate body comprises upper surface protective layer and lower surface protective layer; first line layer and the second line layer, insulating protective layer, positive pole connects electric electrical contact and negative pole connects electric electrical contact; and power electrical contact and negative pole of positive pole is powered electrical contact; first line layer comprises the first sub-line layer, the second sub-line layer, the first sub-line layer and the second sub-line layer electric insulation.FPC plate of the present utility model is by being divided into upper and lower two-layer line layer by line layer, the first sub-line layer is the positive pole line layer be connected with positive source, and the second line layer and the second sub-line layer are the negative pole line layer be connected with power cathode.This design reduces electric current by current field effect during line layer, and negative pole line layer is contrary with the sense of current of positive pole line layer, cancel out each other in the magnetic field that these two line layers produce, make negative pole line layer as screen, make FPC plate of the present utility model have Magnetic Shielding Effectiveness, can not disturb electric component generation around.
Description
Technical field
The utility model relates to a kind of FPC plate, belongs to art of printed circuit boards.
Background technology
FPC plate (flexible PCB) is that the one made for base material with polyimides or polyester film has height reliability, excellent flexible printed circuit, the carrier be electrically connected between Chang Zuowei electronic devices and components.FPC plate (flexible PCB) mainly comprises: for conduct electricity conductive layer (being generally Copper Foil), surface and plurality of conductive layers between the protective layer for insulating; for the strengthening course of the mechanical strength of reinforcement FPC plate, copper clad laminate, protection film and reinforced rubber sheet are bonded to one to form platy structure.
Existing FPC wiring board generally includes one or more layers conductive layer, every one deck conductive layer is responsible for conducting one or more circuit again, because wiring board energising after-current can produce magnetic field, magnetic field then can produce interference to the electric component of periphery, particularly micro-burst motor, because micro-burst motor produces vibration by magnetic fields between vibrating mass and permanent magnet, the magnetic field that thus FPC plate produces easily impacts the vibration of micro-burst motor.
Utility model content
For this reason, technical problem to be solved in the utility model be FPC wiring board of the prior art energising can produce magnetic field and to around electric component produce the problem of interference, thus provide a kind of that there is Magnetic Shielding Effectiveness, interference can not be produced to around electric component FPC plate.
For solving the problems of the technologies described above, a kind of FPC plate of the present utility model, there is plate body, described plate body comprises the upper surface protective layer and lower surface protective layer that are positioned at surface, first line layer between upper surface protective layer and lower surface protective layer and the second line layer, insulating protective layer between described first line layer and the second line layer, the positive pole be connected with power electric for introducing from electric current to FPC plate connects electric electrical contact and negative pole connects electric electrical contact, and power electrical contact and negative pole of the positive pole for extracted current to be electrically connected with power consumption equipment is powered electrical contact, described first line layer comprises and to connect electric electrical contact and positive pole with positive pole and to power the first sub-line layer that electrical contact is electrically connected, and connect with negative pole the second sub-line layer that electric electrical contact and the second line layer be electrically connected, second line layer and negative pole electrical contact of powering is electrically connected, described first sub-line layer and the second sub-line layer electric insulation.
FPC plate of the present utility model, the area of described first sub-line layer is not more than the area of the second sub-line layer.
FPC plate of the present utility model, the area of the second sub-line layer and the second line layer and 2.5 times of the area that is at least described first sub-line layer.
FPC plate of the present utility model, described plate body extends protuberance to side on the whole, and the end coplanar of described protuberance arranges power electrical contact and described negative pole of described positive pole and to power electrical contact.
FPC plate of the present utility model, described positive pole electrical contact and negative pole electrical contact of powering of powering is arranged on the upper surface protective layer of described protuberance and upper simultaneously, or is arranged on lower surface protective layer simultaneously.
FPC plate of the present utility model, described second sub-line layer realizes being electrically connected by groups of vias with the second line layer.
FPC plate of the present utility model, described groups of vias comprises the first groups of vias and the second groups of vias, second sub-line layer forms protruding end near the position of the first sub-line layer, described first groups of vias is molded on described protruding end, described second groups of vias is molded on described second sub-line layer, comprise two via holes respectively in described first groups of vias and described second groups of vias, the line of two via holes in the line of two via holes in described first groups of vias and described second groups of vias is perpendicular.
FPC plate of the present utility model, is also provided with electromagnetic shielding film on described upper surface protective layer and/or on described lower surface protective layer.
FPC plate of the present utility model, described positive pole electrical contact and negative pole electrical contact of powering of powering be arranged in parallel and is positioned at the centre position of described upper surface protective layer.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) FPC plate of the present utility model is by being divided into upper and lower two-layer line layer by line layer, and the first sub-line layer is the positive pole line layer be connected with positive source, and the second line layer and the second sub-line layer are the negative pole line layer be connected with power cathode.This design reduces electric current by current field effect during line layer, and negative pole line layer is contrary with the sense of current of positive pole line layer, cancel out each other in the magnetic field that these two line layers produce, make negative pole line layer as screen, thus make FPC plate of the present utility model have Magnetic Shielding Effectiveness, can not disturb electric component generation around.
(2) FPC plate of the present utility model, by arranging the proportionate relationship of negative pole line layer and positive pole line layer, has considered the manufacturing cost of Magnetic Shielding Effectiveness and FPC plate, and make while guarantee Magnetic Shielding Effectiveness, manufacturing cost is unlikely to too high.
(3) FPC plate of the present utility model, described upper surface protective layer and lower surface protective layer are also provided with electromagnetic shielding film outward.The effectiveness of FPC plate of the present utility model can be improved further after electromagnetic shielding film is set.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the structural representation of the utility model embodiment 1FPC plate;
Fig. 2 is the structural representation of the utility model embodiment 1 first line layer;
Fig. 3 is the structural representation of the utility model embodiment 1 second line layer.
In figure, Reference numeral is expressed as: 11-positive pole connects electric electrical contact, and 12-negative pole connects electric electrical contact; 21-positive pole is powered electrical contact, and 22-negative pole is powered electrical contact; 3-first line layer, the sub-line layer of 31-first, the sub-line layer of 32-second; 4-second line layer; 5-protuberance; 61-first groups of vias; 62-second groups of vias.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and embodiment of the present utility model is described.
As Figure 1-3, the present embodiment provides a kind of FPC plate, there is plate body, described plate body comprises the upper surface protective layer and lower surface protective layer that are positioned at surface, first line layer 3 between upper surface protective layer and lower surface protective layer and the second line layer 4, insulating protective layer between described first line layer 3 and the second line layer 4, the positive pole be connected with power electric for introducing from electric current to FPC plate connects electric electrical contact 11 and negative pole connects electric electrical contact 12, and power electrical contact 21 and negative pole of the positive pole for extracted current to be electrically connected with power consumption equipment is powered electrical contact 22, described first line layer 3 comprises and to connect electric electrical contact 11 and positive pole with positive pole and to power the first sub-line layer 31 that electrical contact 21 is electrically connected, and connect with negative pole the second sub-line layer 32 that electric electrical contact 12 and the second line layer 4 be electrically connected, second line layer 4 and negative pole electrical contact 22 of powering is electrically connected, described first sub-line layer 31 and the second sub-line layer 32 electric insulation.The power consumption equipment of the FPC plate of the present embodiment is flat electric machine, can certainly be other the electronic device to magnetic-field-sensitive.First line layer 3 and the second line layer 4 are conductive layer, wherein the second line layer 4 is that a unitary conductive thin slice forms (being generally Copper Foil), first line layer 3 is divided into first sub-line layer 31 and the second sub-line layer 32 two pieces of conductive foils, and the second line layer 4 can cover the orthographic projection of the first sub-line layer 31 and the second sub-line layer 32 completely.
The FPC plate of the present embodiment is by being divided into upper and lower two-layer line layer by line layer, the first sub-line layer 31 is the positive pole line layer be connected with positive source, and the second line layer 4 is the negative pole line layer be connected with power cathode with the second sub-line layer 32.This design reduces electric current by current field effect during line layer, and negative pole line layer is contrary with the sense of current of positive pole line layer, cancel out each other in the magnetic field that these two line layers produce, make negative pole line layer as screen, thus make the FPC plate of the present embodiment have Magnetic Shielding Effectiveness, can not disturb electric component generation around.
The FPC plate of the present embodiment, the area of described first sub-line layer 31 equals the area of the second sub-line layer 32.Certainly, also the area of the first sub-line layer 31 can be set to the area being less than the second sub-line layer 32.
The FPC plate of the present embodiment, the area of the second sub-line layer 32 and the second line layer 4 and be preferably 2.5 times for the area of described first sub-line layer 31.Certainly, the area of the second sub-line layer 32 and the second line layer 4 and 2.5 times of the area that also can exceed described first sub-line layer 31, as 3 times, 3.5 times, 4 times etc.
It is pointed out that the area of the first sub-line layer 32 of sub-line layer 31, second and the second line layer 4 refers to the area on the surface paralleled of the first sub-line layer 32 of sub-line layer 31, second and the second line layer 4 and plate body upper surface or lower surface.
By arranging the proportionate relationship of negative pole line layer and positive pole line layer, considered the manufacturing cost of Magnetic Shielding Effectiveness and FPC plate, make while guarantee Magnetic Shielding Effectiveness, manufacturing cost is unlikely to too high.
The FPC plate of the present embodiment, described plate body extends protuberance 5 to side on the whole, and power electrical contact 21 and negative pole of described positive pole is powered on upper surface protective layer and lower surface protective layer that electrical contact 22 is arranged on described protuberance 5 simultaneously.Certain positive pole power electrical contact 21 and negative pole power electrical contact 22 also can be only coplanar be arranged on upper surface protective layer or lower surface protective layer, this position mainly with the wiring contact needing power consumption equipment is relevant.
The FPC plate of the present embodiment, described second sub-line layer 32 realizes being electrically connected by groups of vias with the second line layer 4.
The FPC plate of the present embodiment, described groups of vias comprises the first groups of vias and the second groups of vias, second sub-line layer 32 forms protruding end 31a near the position of the first sub-line layer 31, described first groups of vias 61 is molded on described protruding end 31a, described second groups of vias 62 is molded on described second sub-line layer 32, comprise two via holes respectively in described first groups of vias 61 and described second groups of vias 62, the line of two via holes in the line of two via holes in described first groups of vias 61 and described second groups of vias 62 is perpendicular.
Reducing electrical potential difference between the second sub-line layer 32 and the second line layer 4 by arranging multiple via hole, making the electric current flowing through the second sub-line layer 32 and the second line layer 4 substantially equal, reducing self electric energy loss of FPC plate circuit.
The FPC plate of the present embodiment, is also provided with electromagnetic shielding film on described upper surface protective layer He on described lower surface protective layer.If only need there is high magnetic screen requirement to one side, electromagnetic shielding film also can only be arranged on the protective layer of upper surface protective layer upper or lower surface, can improve the effectiveness of the FPC plate of the present embodiment after arranging electromagnetic shielding film further.
The FPC plate of the present embodiment, described positive pole electrical contact 21 and negative pole electrical contact 22 of powering of powering be arranged in parallel and is positioned at the centre position of described upper surface protective layer.By be arranged on centre position can conveniently with the connection of external power source, and make the first sub-line layer 31 identical with the sense of current of the second sub-line layer 32 and contrary with the sense of current of the second line layer 4.
The flow direction of the FPC plate of the present embodiment operationally electric current is, external power supply positive pole--positive pole connect electric electrical contact 11--first sub-line layer 31--positive pole power electrical contact 21--power consumption equipment--, and negative pole powers that the sub-line layer 32--negative pole of electrical contact 22--second line layer 4--second connects electric electrical contact 12--external power supply negative pole.
Obviously, above-described embodiment is only for clearly example being described, the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range that the utility model creates.
Claims (9)
1. a FPC plate, there is plate body, described plate body comprises the upper surface protective layer and lower surface protective layer that are positioned at surface, first line layer (3) between upper surface protective layer and lower surface protective layer and the second line layer (4), be positioned at the insulating protective layer between described first line layer (3) and the second line layer (4), the positive pole be connected with power electric connects electric electrical contact (11) and negative pole connects electric electrical contact (12), and power electrical contact (21) and negative pole of the positive pole to be electrically connected with power consumption equipment is powered electrical contact (22), it is characterized in that, described first line layer (3) comprises and to connect electric electrical contact (11) and positive pole with positive pole and to power the first sub-line layer (31) that electrical contact (21) is electrically connected, and connect with negative pole the second sub-line layer (32) that electric electrical contact (12) and the second line layer (4) be electrically connected, second line layer (4) and negative pole electrical contact (22) of powering is electrically connected, described first sub-line layer (31) and the second sub-line layer (32) electric insulation.
2. FPC plate according to claim 1, is characterized in that, the area of described first sub-line layer (31) is not more than the area of the second sub-line layer (32).
3. FPC plate according to claim 1 and 2, is characterized in that, the area of the second sub-line layer (32) and the second line layer (4) and 2.5 times of the area that is at least described first sub-line layer (31).
4. FPC plate according to claim 3, it is characterized in that, described plate body extends protuberance (5) on the whole to side, the end coplanar of described protuberance (5) arranges power electrical contact (21) and described negative pole of described positive pole and to power electrical contact (22).
5. FPC plate according to claim 4; it is characterized in that; described positive pole electrical contact (21) and negative pole electrical contact (22) of powering of powering is arranged on the upper surface protective layer of described protuberance (5) simultaneously, or is arranged on lower surface protective layer simultaneously.
6. FPC plate according to claim 5, is characterized in that, described second sub-line layer (32) realizes being electrically connected by groups of vias with the second line layer (4).
7. FPC plate according to claim 6, it is characterized in that, described groups of vias comprises the first groups of vias (61) and the second groups of vias (62), second sub-line layer (32) forms protruding end (31a) near the position of the first sub-line layer (31), described first groups of vias (61) is molded on described protruding end (31a), described second groups of vias (62) is molded on described second sub-line layer (32), two via holes are comprised respectively in described first groups of vias (61) and described second groups of vias (62), the line of two via holes in the line of two via holes in described first groups of vias (61) and described second groups of vias (62) is perpendicular.
8. FPC plate according to claim 7, is characterized in that, is also provided with electromagnetic shielding film on described upper surface protective layer and/or on described lower surface protective layer.
9. the FPC plate according to claim 1 or 2 or 4 or 5 or 6 or 7 or 8, is characterized in that, described positive pole electrical contact (21) and negative pole electrical contact (22) of powering of powering be arranged in parallel and is positioned at the centre position of described upper surface protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420764505.0U CN204206608U (en) | 2014-12-08 | 2014-12-08 | A kind of FPC plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420764505.0U CN204206608U (en) | 2014-12-08 | 2014-12-08 | A kind of FPC plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204206608U true CN204206608U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420764505.0U Active CN204206608U (en) | 2014-12-08 | 2014-12-08 | A kind of FPC plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204206608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340513A (en) * | 2015-07-09 | 2017-01-18 | 台达电子工业股份有限公司 | Power module for integrated control circuit |
| WO2023125614A1 (en) * | 2021-12-29 | 2023-07-06 | 长春捷翼汽车科技股份有限公司 | Pcb with low electromagnetic interference, power source distribution unit, and vehicle |
-
2014
- 2014-12-08 CN CN201420764505.0U patent/CN204206608U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340513A (en) * | 2015-07-09 | 2017-01-18 | 台达电子工业股份有限公司 | Power module for integrated control circuit |
| CN106340513B (en) * | 2015-07-09 | 2019-03-15 | 台达电子工业股份有限公司 | A kind of power module of integral control circuit |
| WO2023125614A1 (en) * | 2021-12-29 | 2023-07-06 | 长春捷翼汽车科技股份有限公司 | Pcb with low electromagnetic interference, power source distribution unit, and vehicle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |