CN107787110A - Circuit board - Google Patents
Circuit board Download PDFInfo
- Publication number
- CN107787110A CN107787110A CN201610717946.9A CN201610717946A CN107787110A CN 107787110 A CN107787110 A CN 107787110A CN 201610717946 A CN201610717946 A CN 201610717946A CN 107787110 A CN107787110 A CN 107787110A
- Authority
- CN
- China
- Prior art keywords
- induction coil
- sound source
- signal line
- source signal
- circuit board
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
- H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
- H05K1/0224—Patterned shielding planes, ground planes or power planes
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
Abstract
A kind of circuit board, it includes induction coil, sound source signal line and ground wire.The induction coil and the sound source signal line are placed in the both sides of the ground wire.The induction coil and the sound source signal line are separated a preset distance by the ground wire, and the preset distance is at least the distance of reaction of the induction coil.The circuit board of the present invention separates the ground wire of a preset distance due to having laid one between induction coil and sound source signal line by induction coil and sound source signal line, eliminate interfering between induction coil and sound source signal line, so as to which induction coil and sound source signal line are layed on same circuit board, avoid and induction coil and sound source signal line are layed in various boards and increase the trouble of cost.
Description
Technical field
The present invention relates to a kind of circuit board.
Background technology
The capacitance key and sound source of existing electronic equipment can interfere, thus be typically all by sound source wire and electricity
Appearance formula button is placed in different flexible circuit boards to avoid disturbing.So, such a mode needs two flexible circuit boards, thus increases
The volume and cost of electronic equipment are added.
The content of the invention
In view of this, it is necessary to provide that a kind of volume is relatively small, lower-cost circuit board, to solve the above problems.
A kind of circuit board, it includes induction coil, sound source signal line and ground wire.The induction coil and the sound source signal
Line is placed in the both sides of the ground wire.The induction coil and the sound source signal line are separated a preset distance by the ground wire,
The preset distance is at least the distance of reaction of the induction coil.
The circuit board of the present invention between induction coil and sound source signal line due to having laid one by induction coil and source of sound
Signal wire separates the ground wire of a preset distance, eliminates interfering between induction coil and sound source signal line, so as to
Induction coil and sound source signal line are layed on same circuit board, avoids and is layed in induction coil and sound source signal line not
With the trouble for increasing cost on circuit board.
Brief description of the drawings
Fig. 1 is the stereogram of circuit board in an embodiment.
Fig. 2 is the exploded view of circuit board in Fig. 1.
Main element symbol description
Circuit board 100
Induction coil 10
Sound source signal line 20
Ground wire 30
Embodiment
Referring to Fig. 1, its stereogram for the circuit board 100 of an embodiment of the present invention.In present embodiment, circuit board
100 be a flexible circuit board, and it is used for the electronic equipment with capacitance key, such as mobile phone, e-book.
Please also refer to Fig. 2, circuit board 100 includes the induction coil 10 of capacitance key, positioned at the lower section of induction coil 10
Sound source signal line 20 and the ground wire 30 between induction coil 10 and sound source signal line 20.
Preferably, width W=distance of reaction S × 1.5 of ground wire 30.Wherein, distance of reaction S is the effective of induction coil 10
Distance of reaction, i.e., in distance of reaction S, induction coil 10 can sense interference signal.In other words, if interference source,
As the distance between the sound source signal line 20 in present embodiment, the induction coil 10 are less than distance of reaction S, then interference source meeting
Interference is produced to the induction coil 10.Therefore, present embodiment preferably using ground wire 30 width W=distance of reaction S ×
1.5 so that the distance between induction coil 10 and sound line 20 are at least 1.5 times of distance of reaction S, so that it is guaranteed that the line of induction
Circle 10 will not be by the interference of the sound source signal line 20.
, will due to having laid one between induction coil 10 and sound source signal line 20 during using circuit board 100 of the invention
Induction coil separates the ground wire 30 of a preset distance with sound source signal line, eliminates between induction coil 10 and sound source signal line 20
Interfere, so as to which induction coil 10 and sound source signal line 20 are layed on same circuit board 100, avoiding to feel
Coil 10 and sound source signal line 20 is answered to be layed in various boards and increase the trouble of cost.
Those skilled in the art it should be appreciated that the embodiment of the above be intended merely to explanation the present invention,
And be not used as limitation of the invention, as long as within the spirit of the present invention, above example is made
It is appropriate to change and change all to fall within the scope of protection of present invention.
Claims (3)
1. a kind of circuit board, it includes induction coil and ground wire, it is characterised in that：The circuit board also includes sound source signal line,
The induction coil and the sound source signal line are placed in the both sides of the ground wire；The ground wire by the induction coil with it is described
Sound source signal line separates a preset distance, and the preset distance is at least the distance of reaction of the induction coil.
2. circuit board as claimed in claim 1, it is characterised in that：The circuit board is a flexible circuit board.
3. circuit board as claimed in claim 1, it is characterised in that：The preset distance be equal to the induction coil sensing away from
From 1.5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717946.9A CN107787110A (en) | 2016-08-24 | 2016-08-24 | Circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717946.9A CN107787110A (en) | 2016-08-24 | 2016-08-24 | Circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107787110A true CN107787110A (en) | 2018-03-09 |
Family
ID=61388600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610717946.9A Withdrawn CN107787110A (en) | 2016-08-24 | 2016-08-24 | Circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107787110A (en) |
-
2016
- 2016-08-24 CN CN201610717946.9A patent/CN107787110A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180309 |
|
| WW01 | Invention patent application withdrawn after publication |