CN201248193Y - Printed circuit board and electronic equipment - Google Patents
Printed circuit board and electronic equipment Download PDFInfo
- Publication number
- CN201248193Y CN201248193Y CNU2008201099885U CN200820109988U CN201248193Y CN 201248193 Y CN201248193 Y CN 201248193Y CN U2008201099885 U CNU2008201099885 U CN U2008201099885U CN 200820109988 U CN200820109988 U CN 200820109988U CN 201248193 Y CN201248193 Y CN 201248193Y
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- Prior art keywords
- circuit board
- printed circuit
- signal
- conductor
- ground
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- Expired - Lifetime
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- 239000004020 conductor Substances 0.000 claims abstract description 29
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000452 restraining effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010992 reflux Methods 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
The utility model discloses a printed circuit board (PCB) and electronic equipment. The PCB comprises a signal line and a conductor, wherein the signal line passes through a non-reference-plane area or a discontinuous reference plane area, and the conductor spans on the ground at two sides of the signal line. The electronic equipment comprises the PCB. The utility model enables the ground of the non-reference-plane area or the discontinuous reference plane area to communicate through spanning the conductor on the ground at two sides of the signal line to avoid the circumambulation of return-current signals, thereby achieving the purpose of improving the return current characteristic with lower cost and shorter period, and achieving the effect of restraining the electromagnetic interference.
Description
Technical Field
The utility model relates to an electronic circuit field, in particular to printed circuit board and electronic equipment.
Background
With the development and popularization of terminal electronic products, the price is lower and lower. In order for an end product developer to profit in a low price environment, the end product developer must reduce costs while ensuring product quality. Therefore, many terminal electronic products are designed using low-cost single-sided or double-sided PCB (Printed Circuit Board) boards.
However, the PCB often has the phenomena of ground dispersion and incomplete ground plane due to the routing, which may cause the bypassing of the return signal, increase the loop inductance or capacitance, and may cause adverse effects such as resonance.
At present, the prior art often adopts a method of adding a ground plane layer to a PCB board to solve the problem of ground reference and ground backflow. The ground plane layer can provide a reference plane for the element layer, provides a return path for the return signal and reduces crosstalk between the PCB routing wires.
In the process of implementing the present invention, the inventor finds that the prior art has at least the following problems:
the method of adding ground plane layer to printed circuit board solves the problem of ground reflux, increases the production cost and lengthens the production period.
SUMMERY OF THE UTILITY MODEL
In order to save the cost, shorten the preparation cycle, the embodiment of the utility model provides a printed circuit board and electronic equipment. The technical scheme is as follows:
a printed circuit board, characterized in that the printed circuit board (10) comprises: a signal trace (101) and a conductor (102); wherein,
the signal routing (101) passes through a region without a reference surface or a reference surface discontinuous region;
the conductor (102) is bridged with the ground at two sides of the signal trace (101).
An electronic device, characterized in that the electronic device comprises: a printed circuit board (10), the printed circuit board (10) comprising: a signal trace (101) and a conductor (102); wherein,
the signal routing (101) passes through a region without a reference surface or a reference surface discontinuous region;
the conductor (102) is bridged with the ground at two sides of the signal trace (101).
The embodiment of the utility model provides a technical scheme's beneficial effect is:
the ground of the reference surface-free area or the reference surface discontinuous area is communicated by bridging the conductor with the ground at the two sides of the signal wire, thereby avoiding the bypassing of the backflow signal, achieving the purpose of improving the backflow characteristic with lower cost and shorter period,
drawings
Fig. 1 is a schematic structural diagram of a printed circuit board according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the present embodiment provides a printed circuit board 10 including: signal trace 101, conductor 102; wherein,
the signal routing 101 passes through a non-reference surface area or a reference surface discontinuous area;
the conductor 102 is connected across the ground on both sides of the signal trace 101.
In another embodiment of the present invention, the printed circuit board 10 may be a single-sided printed circuit board, which has no ground plane layer as a reference surface, and the conductive wires can only be concentrated on one side of the printed circuit board; the printed circuit board 10 may be a double-sided printed circuit board, and the conductive wires may be present on both sides of the printed circuit board, wherein one side is a ground plane layer as a reference surface, but due to the routing and the like, there may be a reference surface discontinuous region; when the signal trace 101 passes through the non-reference-surface area or the reference-surface discontinuous area, the signal will detour, and the reflow characteristic is not good.
The signal traces 101 may be high current traces or high speed signal traces, which may generate strong electromagnetic interference to other traces and electronic components on the printed circuit board.
The conductor 102 may be a resistor or a hardware structure, and the resistor or the hardware structure is bridged to the ground on both sides of the signal trace, so that the backflow characteristic can be improved, a large current or a high-speed signal is prevented from bypassing, and the effect of suppressing electromagnetic interference can be achieved. In order to ensure good reflow characteristics and electromagnetic interference suppression characteristics, a resistor device or a hardware structural member with good equivalent parameters can be selected. The good equivalent parameter means that when the frequency is high, the equivalent inductance and the equivalent capacitance of the resistor device are both small, the resistance characteristic is shown, and the effect of better improving the backflow and inhibiting the electromagnetic interference can be achieved by using the conductor with the good equivalent parameter.
In addition, a plurality of conductors may be connected across the grounds on both sides of the signal trace, see fig. 1, and three conductors may be connected across the grounds on both sides of the interference signal trace. Although the ground can be connected to only one conductor across the ground, the effect of the connection and the effect of suppressing electromagnetic interference are not good.
The utility model discloses a cross over the conductor in the ground of signal wiring both sides, make the ground that does not have the reference surface region or reference surface discontinuous region communicate, avoided the detour of backward flow signal, reached with lower cost, the purpose of reflux characteristic is improved to shorter cycle, has still played the effect that restraines electromagnetic interference simultaneously, specifically as follows:
1. improve signal quality and better implement back flow
The PCB provided by the embodiment connects the ground with broken routing, provides a better ground return path for signals and improves the signal quality.
2. Low cost and short production period
Compared with the method of increasing the ground plane layer, the method has the advantages that the reflux characteristic can be improved by connecting conductors (such as a resistor device, a hardware structural member and the like) on the ground at the two sides of the signal routing, but the manufacturing period is shorter, the cost is lower, and the price competitiveness of the product is stronger.
3. Shielding signal wiring and suppressing electromagnetic interference
The conductor is bridged on the ground at the two sides of the signal wiring, and the purposes of shielding the interference signal wiring and inhibiting electromagnetic interference are achieved. Compared with the method for solving the electromagnetic interference by adopting the shielding case in the prior art, the cross-over conductor (such as a resistor or a hardware structural part) has no influence on the layout of the single board and the scheme of the whole product, and the layout and the wiring are very flexible; the resistor device and the hardware structural member are small in size and can be flexibly placed, so that the space of a terminal electronic product is saved, and the product is smaller and more portable.
Correspondingly, this embodiment provides an electronic device, which includes a printed circuit board, where the printed circuit board may specifically be the printed circuit board provided in the foregoing embodiment, and includes: signal traces 101 and conductors 102; wherein,
the signal routing 101 passes through a non-reference surface area or a reference surface discontinuous area;
the conductor 102 is connected across the ground on both sides of the signal trace 101.
Accordingly, the signal traces 101 and the conductors 102 may be signal traces and conductors provided in the above-mentioned embodiment of the printed circuit board, and are not described herein again.
The electronic equipment provided by the embodiment has the advantages of low cost, short manufacturing period, good backflow characteristic, flexible wiring, small volume, portability and the like, and has stronger price competitiveness in the field of electronic products.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A printed circuit board, characterized in that the printed circuit board (10) comprises: a signal trace (101) and a conductor (102); wherein,
the signal routing (101) passes through a region without a reference surface or a reference surface discontinuous region;
the conductor (102) is bridged with the ground at two sides of the signal trace (101).
2. The printed circuit board of claim 1, wherein the printed circuit board (10) is a single-sided printed circuit board, the signal traces (101) passing through the no-reference area.
3. The printed circuit board of claim 1, wherein the printed circuit board (10) is a double-sided printed circuit board, the signal traces (101) passing through the reference plane discontinuity areas.
4. A printed circuit board according to any of claims 1 to 3, wherein the signal tracks (101) are high current tracks or high speed signal tracks.
5. A printed circuit board according to any of claims 1 to 3, characterized in that the conductor (102) is a resistor device or a hardware structure.
6. An electronic device, characterized in that the electronic device comprises: a printed circuit board (10), the printed circuit board (10) comprising: a signal trace (101) and a conductor (102); wherein,
the signal routing (101) passes through a region without a reference surface or a reference surface discontinuous region;
the conductor (102) is bridged with the ground at two sides of the signal trace (101).
7. The electronic device of claim 6, wherein the printed circuit board (10) is a single-sided printed circuit board, the signal traces (101) passing through the no-reference-plane area.
8. The electronic device of claim 6, wherein the printed circuit board (10) is a double-sided printed circuit board, the signal traces (101) passing through the reference plane discontinuity areas.
9. The electronic device according to any of the claims 6 to 8, wherein the signal traces (101) are high current traces or high speed signal traces.
10. An electronic device according to any one of claims 6 to 8, characterized in that the conductor (102) is a resistor device or a hardware structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201099885U CN201248193Y (en) | 2008-08-28 | 2008-08-28 | Printed circuit board and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201099885U CN201248193Y (en) | 2008-08-28 | 2008-08-28 | Printed circuit board and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201248193Y true CN201248193Y (en) | 2009-05-27 |
Family
ID=40732020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201099885U Expired - Lifetime CN201248193Y (en) | 2008-08-28 | 2008-08-28 | Printed circuit board and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201248193Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103889140A (en) * | 2012-12-20 | 2014-06-25 | 深圳市共进电子股份有限公司 | Wiring method for double-face printed circuit board |
| CN104967426A (en) * | 2015-04-29 | 2015-10-07 | 福州瑞芯微电子有限公司 | Impedance assembling device of differential signal not having reference plane and impedance control method of differential signal not having reference plane |
-
2008
- 2008-08-28 CN CNU2008201099885U patent/CN201248193Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103889140A (en) * | 2012-12-20 | 2014-06-25 | 深圳市共进电子股份有限公司 | Wiring method for double-face printed circuit board |
| CN104967426A (en) * | 2015-04-29 | 2015-10-07 | 福州瑞芯微电子有限公司 | Impedance assembling device of differential signal not having reference plane and impedance control method of differential signal not having reference plane |
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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: HUAWEI DEVICE CO., LTD. Free format text: FORMER NAME: SHENZHEN HUAWEI TECHNOLOGY CO. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee after: Huawei Device Co., Ltd. Address before: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee before: Shenzhen Huawei Communication Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171106 Address after: Metro Songshan Lake high tech Industrial Development Zone, Guangdong Province, Dongguan City Road 523808 No. 2 South Factory (1) project B2 -5 production workshop Patentee after: HUAWEI terminal (Dongguan) Co., Ltd. Address before: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee before: Huawei Device Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090527 |