CN103134440B - Circuit board curvature detection device and method - Google Patents
Circuit board curvature detection device and method Download PDFInfo
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- CN103134440B CN103134440B CN201110378927.5A CN201110378927A CN103134440B CN 103134440 B CN103134440 B CN 103134440B CN 201110378927 A CN201110378927 A CN 201110378927A CN 103134440 B CN103134440 B CN 103134440B
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 230000003287 optical Effects 0.000 claims abstract description 98
- 239000004020 conductor Substances 0.000 claims abstract description 70
- 238000005452 bending Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 3
- 230000000149 penetrating Effects 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 description 5
- 230000000051 modifying Effects 0.000 description 5
- 230000000875 corresponding Effects 0.000 description 4
- FKDHHVKWGRFRTG-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine Chemical compound [N-]1OC(=N)C=[N+]1N1CCOCC1 FKDHHVKWGRFRTG-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001702 transmitter Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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Abstract
The present invention provides a kind of circuit board curvature detection device, including: a circuit board；One optical conductor unit, is arranged at foregoing circuit plate, has one first smooth medium, one second smooth medium, a transmitting terminal and a receiving terminal；One optical transmitting set, is used to above-mentioned transmitting terminal and launches a light；And an optical receiver, detect whether above-mentioned receiving terminal receives above-mentioned light, when not receiving above-mentioned light, then produce an alarm signal.Whether the present invention flexibility of testing circuit plate can exceed critical bends angle.
Description
Technical field
The invention mainly relates to a kind of circuit board curvature detection device, particularly to one, there is optical conductor list
The circuit board curvature detection device of unit.
Background technology
At present, smart mobile phone, tablet PC or personal digital assistant (personal digtal assistant)
Can be charged by wireless charging device Deng electronic equipment.In general, wireless charging device is by sensing
Assembly (such as, coil) provide magnetic energy to be charged program, the most charged electronic equipment then by
Inductive component receives the magnetic energy of wireless charging device supply, magnetic energy is converted to AC energy, enters
One step is by rectifier stack etc., it is provided that power supply is to the electronic equipment to be charged.
During additionally, wireless charging device performs charging to electronic equipment, owing to inductive component need to be utilized to be produced
Raw electromagnetic induction, it is therefore necessary to by inductive component and the charged electronic equipment of wireless charging device
Inductive component be positioned as close to and align, thus improve charge efficiency.But, if charged
Electronic equipment be a kind of flexible circuit board of flexible circuit board device or Electronic Paper etc, then may
Because the most smooth part put or bend allows the part inductive component on circuit board and wireless charging
The relative distance of device changes so that charge efficiency reduces, and causes needing the longer charging interval very
Cannot charge to causing.
Summary of the invention
In order to solve the problems referred to above, detect dress according to a kind of circuit board curvature described in one embodiment of the invention
Put, including: a circuit board；One optical conductor unit, is arranged at foregoing circuit plate, and has a transmitting terminal
And a receiving terminal；One optical transmitting set, is used to above-mentioned transmitting terminal and launches a light；And a light-receiving
Device, detects whether above-mentioned receiving terminal receives above-mentioned light, when being not received by above-mentioned light, then produces
A raw alarm signal, wherein when a flexibility of circuit board is more than a critical bends angle, above-mentioned photoconduction
Body unit cannot transmit above-mentioned light.
According to a kind of circuit board curvature detection method described in one embodiment of the invention, including: a light is set
Conductor element is to a circuit board；A transmitting terminal in above-mentioned optical conductor unit launches a light；And detection
Whether one receiving terminal of above-mentioned optical conductor unit receives above-mentioned light, when being not received by above-mentioned light
Time, then produce an alarm signal, wherein when a flexibility of circuit board is more than a critical bends angle,
Above-mentioned optical conductor unit cannot transmit above-mentioned light.
Whether the present invention flexibility of testing circuit plate can exceed critical bends angle.
Accompanying drawing explanation
From read described further below and with the citing of accompanying drawing, can more completely understand the present invention and be taken off
Show, as follows:
Fig. 1 is to show the square according to the circuit board bending degree detecting device described in one embodiment of the invention
Figure.
Fig. 2 A is the generalized section of display optical conductor unit 110-1.
Fig. 2 B is display optical conductor unit 110-1 generalized section in time producing bending.
Fig. 3 is to show to detect device according to the circuit board curvature described in another embodiment of the present invention.
Fig. 4 is the embodiment of the method showing and detecting device according to the circuit board curvature shown in Fig. 3 of the present invention
Flow chart.
Main Reference Numerals illustrates:
100,300～circuit board；
110-1,110-2,310～optical conductor unit；
120,320～wireless charging unit；
130,330～external wireless charging device；
L～light；
M1, m2～light medium；
N, N '～dotted line, normal；
Rx, Rx-1, Rx-2～optical receiver；
Tx, Tx-1, Tx-2～optical transmitting set；
θ、θ1～angle of incidence；
θ2～refraction angle；
Φ～flexibility.
Detailed description of the invention
Display many described below lends the present invention embodiment completed.Its narration is in order to the base that the present invention is described
This concept the connotation without restriction.The scope of the present invention has optimal boundary in the appended claims
Fixed.
Fig. 1 is to show to detect device according to the circuit board curvature described in one embodiment of the invention.Circuit board is bent
Degree detection device includes circuit board 100, optical conductor unit 110-1, optical transmitting set Tx-1, optical receiver
Rx-1, optical conductor unit 110-2, optical transmitting set Tx-2, optical receiver Rx-2 and wireless charging unit
120.Circuit board 100 usually a kind of flexible circuit arrangement, such as flexible circuit board or electronics
Paper.
Optical conductor unit 110-1 longitudinal direction is arranged on circuit board 100 (such as, Y-direction), and photoconduction
Body unit 110-2 transverse direction is arranged on circuit board 100 (such as, X-direction), in order to detect two respectively
The flexibility of individual different directions.Optical transmitting set Tx-1 is arranged at one end of optical conductor unit 110-1, can claim
Make transmitting terminal.Optical receiver Rx-1 is arranged at the other end of optical conductor unit 110-1, can be referred to as receiving terminal.
Similarly, optical transmitting set Tx-2 is arranged at one end of optical conductor unit 110-2, and optical receiver Rx-2 sets
It is placed in the other end of optical conductor unit 110-2.Owing to optical conductor unit is when flexibility is excessive, will result in
Light cannot be sent to the other end (detailed reason is in rear discussion) by one end, therefore can be according to receptor Rx-1
Whether being correspondingly received the light that emitter Tx-1 is launched, receptor Rx-2 the most correspondingly receives
The light launched to emitter Tx-2 is the most excessive with the flexibility detecting all directions respectively, works as reception
Device Rx-1 or Rx-2 produces alarm signal when not receiving corresponding light.In certain embodiments, electricity
Road plate 100 also can by arranging display unit with according to the alarm signal display the most excessive information of flexibility,
Or by arranging loudspeaker unit to send warning sound according to alarm signal.According to aforesaid way, this
Invent by by optical conductor unit along with circuit board bends, also can the flexibility of testing circuit plate whether exceed
Critical bends angle.
Wherein wireless charging unit 120 is in order to receive the electromagnetic signal of external wireless charging device 130 to carry
Power circuit board 100 power supply, such as, charge or directly as power supply supply to the battery of circuit board 100.
In general, when wireless charging, in order to make charging more usefulness, wireless charging unit 120 can be made as far as possible
The distance nearer with the maintenance of the wireless charging unit of external wireless charging device 130, thus laid parallel.
Therefore, if circuit board 100 produces bending and is likely to result in wireless charging unit 120 and external wireless charging
The wireless charging cell mesh of device 130 is distant, it would be possible to charging is not exclusively or waste power supply disappears
Consumption.Therefore when the present invention does not receives corresponding light in receptor Rx-1 or Rx-2, produced police
Show that signal can also stop charging signals for one, by signal transmitter unit, be sent to external wireless and fill
The signal receiving unit of electric installation 130, external recharging apparatus 130 is further according to the stopping charging letter received
Number charge closing mechanism, does not retransmit the electromagnetic signal for charging, and then reduces unnecessary power and disappear
Consumption.In certain embodiments, wireless charging unit 120 can according to alarm signal modulation electromagnetic signal, with
Transmit and stop charging signals, and the wireless charging unit of external recharging apparatus 130 can be according to the tune received
Electromagnetic signal charge closing mechanism after change.
In order to better understand the present invention, below in order to explain that the present invention controls the machine of optical conductor conduction light
System, and owing to the model of action of optical conductor unit 110-2 with 110-1 is identical, in order to simplify following only with
Optical conductor unit 110-1 explains as representing.
Fig. 2 A be display optical conductor unit 110-1 generalized section, it is illustrated that in dotted line N represent this
The normal at interface.Optical conductor unit 110-1 is generally formed by two kinds of different light media, Qi Zhongyi
Individual light medium m1 is positioned at the inside of optical conductor unit 110-1, and another light medium m2 is coated with light medium m1,
It is positioned at the outer layer of optical conductor unit 110-1.When optical transmitting set Tx-1 is in the transmitting of optical conductor unit 110-1
When end launches a light L (such as, infrared ray), and in order to make the light L can be at light medium m1 and light
Between medium m2, reflection is advanced, and refractive index n1 of light medium m1 need to be more than the refractive index of light medium m2
N2, by the formula critical angle θ of total reflectionT=sin-1(n2/n1) can be appreciated that light L is more than at incidence angle θ
Critical angle θTTime incident light conductor element 110-1 internal time by generations total reflection, be therefore able to light L
It is sent to receiving terminal by the transmitting terminal of optical conductor unit 110-1.Therefore can be by the folding changing light medium m1
Penetrate rate n1 and refractive index n2 of light medium m2, may be used to change critical angle θTSize.
Fig. 2 B is display optical conductor unit 110-1 generalized section in time producing bending, it is illustrated that in
Dotted line N represents that the normal of non-curved interface, dotted line N ' then represent the normal of curved interface.Such as Fig. 2 B
Shown in, during interface between light L incident illumination medium m1 and light medium m2, due to optical conductor
Unit 110-1 produces bending, and (incidence angle θ becomes incidence angle θ to cause incident angle to diminish1), now,
If incidence angle θ1Less than critical angle θT, then according to n1sinθ1=n2sinθ2Understand, in this medium intersection meeting
Generation refraction angle is θ2Refraction, then light L wears light transmission medium m2, and light L cannot continue at
In light medium m1, persistently reflection advances to the other end.If it follows that optical conductor unit 110-1's connects
When receiving end cannot receive the light L that transmitting terminal is launched, can represent that optical conductor unit 110-1 at least exists
Wherein the flexibility of a section is excessive, wherein flexibility be Φ be the angle folded by dotted line N and N '.
Additionally, from diagram, incidence angle θ1Flexibility Φ (θ-Φ=θ is deducted equal to former incidence angle θ1), therefore
Can draw and work as sin-1(n2/n1), during ＞ θ-Φ, refraction is not transferred to receiving terminal by light L.Whereby,
The present invention by selecting refractive index n2 of refractive index n1 and light medium m2 of light medium m1 and can enter
Penetrate angle, θ, to control critical bends angle, φT, and then according to the receiving terminal of optical conductor unit 110-1 be
The no light L that receives determines whether flexibility Φ exceedes default critical bends angle, φT.It addition, by
In refractive index and light frequency, there is inverse relation, the most also can be by changing the frequency of light L (such as,
Select the light of different wave length) to determine critical bends angle, φT。
Though the optical conductor unit shown in Fig. 1 is arranged on circuit board, but still may be disposed at circuit board another side
Or be embedded in circuit board and (such as by circuit board manufacturing process technology, optical conductor unit be arranged at electricity
A road plate wherein floor).And in above-described embodiment, although optical conductor unit 110-1 and 110-2 is respectively
It is arranged on circuit board 100 with longitudinal direction and transverse direction, but the present invention is not limited to this, still can root
Optical conductor unit is arranged on any direction, with any shape or number according to the direction of required detection flexibility
Amount is arranged to meet demand.In some embodiments of the invention, optical conductor unit 110-1 and 110-2
Can be a kind of optical fiber, and light L can be a kind of infrared ray.
Fig. 3 is to show to detect device according to the circuit board curvature described in another embodiment of the present invention.This enforcement
In example circuit board curvature detection device include circuit board 300, optical conductor unit 310, optical transmitting set Tx,
Optical receiver Rx and wireless charging unit 320.Circuit board 300 usually a kind of flexible circuit
Device, such as flexible circuit board or Electronic Paper.Wherein optical conductor unit 310 is also same as first enforcement
Example, when flexibility is excessive, will result in light and cannot be sent to the other end by one end, therefore can be according to reception
Whether device Rx is correspondingly received the light that emitter Tx is launched, the flexibility of testing circuit plate 300
The most excessive, alarm signal is produced when receptor Rx does not receives corresponding light.Implement at some
In example, circuit board 300 also can be by arranging display unit with the most excessive according to alarm signal display flexibility
Information, or by arranging loudspeaker unit to send warning sound according to alarm signal.
Wherein wireless charging unit 320 is in order to receive the electromagnetic signal of external wireless charging device 330 to carry
Power circuit board 300 power supply, such as, charge or directly as power supply supply to the battery of circuit board 300.
In general, when wireless charging in order to make charging more usefulness, wireless charging unit 320 can be made as far as possible
The distance nearer with the maintenance of the wireless charging unit of external wireless charging device 330, thus laid parallel.
Therefore, if circuit board 300 produces bending and is likely to result in wireless charging unit 320 and external wireless charging
The wireless charging cell mesh of device 330 is distant, it would be possible to charging is not exclusively or waste power supply disappears
Consumption.Therefore receptor Rx is not when receiving corresponding light, produced alarm signal can also stop for one
Only charging signals, by signal transmitter unit, is sent to external wireless charging device 330, external charging
The signal receiving unit of device 330 is further according to the stopping charging signals charge closing mechanism received, no longer
Send the electromagnetic signal for charging, and then reduce unnecessary power consumption.In certain embodiments,
Wireless charging unit 320 can stop charging signals according to alarm signal modulation electromagnetic signal to transmit, and
The wireless charging unit of external recharging apparatus 330 can be according to electromagnetic signal charge closing after the modulation received
Mechanism.
In this embodiment, the function mode of each assembly the most all with the circuit board in first embodiment
Curvature detection device is identical, and difference is in the present embodiment to complete merely with single optical conductor unit 310
The flexibility detection of both direction, so as to reducing the use of circuit unit and reducing cost.As it can be seen,
Optical conductor unit 310 is staggered to form crosswise in circuit board 300 central authorities, detects two different directions whereby
Flexibility.Owing to optical conductor unit is when flexibility is excessive, also resulting in light cannot be sent to by one end
The other end, optical conductor unit 310 will control in bending in the part that bending is arranged the most in the present embodiment
Degree is less than critical bends degree, to avoid light cannot be sent to receiving terminal by transmitting terminal.The present invention another
In a little embodiments, optical conductor unit 310 may utilize different light medium n1 and n2 group at different sections
Become so that partial sector is different to the sensitivity of flexibility, can make the curved of optical conductor unit 310 whereby
Bent section still can have, with linear section, the critical bends angle, φ being same asT.Special when also
Can be set to spend Φ impact the most by bending at the light medium of the partial sector of optical conductor unit 310, and then make
This section conducts light for total reflection must occur and advances, and to avoid need not the position of detection, borrows
Thus mode, the arrangement mode of optical conductor unit 310 can be more flexible, and does not affect the district of required detection
Section.It addition, the light medium that optical conductor unit 310 can rupture when also can be used in bigger flexibility carrys out group
Become, when circuit board 300 may produce macrobending under the situation being not powered on, optical conductor unit 310
Can therefore rupture, receptor Rx cannot receive light and can produce alarm signal the most after powered up,
Notice user circuit board 300 once produced macrobending whereby, to notify that user circuit board may
Part produces the relevant issues such as damage, or applies on circuit board manufacturing process, so as to superseded because of
Live through macrobending and produce the circuit board of damage with Improving The Quality of Products.
Fig. 4 is the embodiment of the method showing and detecting device according to the circuit board curvature shown in Fig. 3 of the present invention
Flow chart.In step S402, optical transmitting set Tx is in the incident light of transmitting terminal of optical conductor unit 310
Line.Then in step S404, optical receiver Rx continues at the receiving terminal detection of optical conductor unit 310
Whether receive this light, if this light being detected, maintaining the statusquo not do and reacting, if not detection
Step S406 is then entered to this light.In step S406, optical receiver Rx can produce alarm signal
Notice user, such as, can be by arranging display unit with the most excessive according to alarm signal display flexibility
Information, or by arrange loudspeaker unit with according to alarm signal send warning sound notice use
Person, avoids the damage that circuit board 300 overbending causes whereby.This external cooperation external wireless charging dress
Putting 330 when being charged, alarm signal can also stop charging signals as one, launches by signal
Unit, is sent to external wireless charging device 330, and the signal receiving unit of external recharging apparatus 330 is again
According to the stopping charging signals charge closing mechanism received, do not retransmit the electromagnetic signal for charging,
And then reduce unnecessary power consumption.In certain embodiments, wireless charging unit 320 can be according to police
Show modulating signal electromagnetic signal, stop charging signals to transmit, and the wireless charging of external recharging apparatus 330
Electric unit can be according to electromagnetic signal charge closing mechanism after the modulation received.Similarly, Fig. 1 of the present invention
The method flow of shown circuit board curvature detection device is also same as the circuit board curvature detection dress shown in Fig. 3
Putting, difference only detects device in the circuit board curvature shown in Fig. 1 and has two detection different directions flexibility
Optical conductor unit carry out above-mentioned flow process respectively, therefore repeat no more.
Though the present invention has described preferred embodiment as above, it will be appreciated that above-mentioned disclosed and be not used to limit
The embodiment of the present invention.On the contrary, it contains multiple change and similar configuration (ordinary skill people
Member can substantially learn).Additionally, broadest deciphering should be made to comprise on all according to appended claim
The change stated and similar configuration.
Claims (19)
1. a circuit board curvature detection device, including:
One circuit board；
One optical conductor unit, is arranged at foregoing circuit plate, and has a transmitting terminal and a receiving terminal, its
In above-mentioned optical conductor unit there is one first smooth medium and one second smooth medium, above-mentioned first smooth medium position
In the inside of above-mentioned optical conductor unit, the above-mentioned first smooth medium of above-mentioned second smooth media packs is also positioned at above-mentioned
The outer layer of optical conductor unit；
One optical transmitting set, is used to above-mentioned transmitting terminal and launches a light；
One optical receiver, detects whether above-mentioned receiving terminal receives above-mentioned first light, when being not received by
During above-mentioned light, then produce an alarm signal；And
One wireless charging unit, receives the electromagnetic signal of an external wireless charging device to provide power supply supreme
State circuit board；
Wherein when a flexibility of circuit board is more than a critical bends angle, above-mentioned optical conductor unit cannot
Transmit above-mentioned light, when the above-mentioned flexibility of circuit board is not less than above-mentioned critical bends angle, above-mentioned light
Line does not passes through above-mentioned second smooth medium.
2. circuit board curvature detection device as claimed in claim 1, the most above-mentioned optical conductor unit along with
Foregoing circuit plate benging.
3. circuit board curvature detection device as claimed in claim 1, the most above-mentioned first smooth medium, tool
There is one first optical index, and the second smooth medium, there is one second optical index, and above-mentioned first light folding
Rate of penetrating is more than above-mentioned second optical index, when the above-mentioned flexibility of foregoing circuit plate is less than above-mentioned critical bends
During angle, the most above-mentioned light is in above-mentioned first smooth medium, by above-mentioned first smooth medium and above-mentioned second
One interface reflection of light medium is advanced, to conduct to above-mentioned receiving terminal from above-mentioned transmitting terminal, and when above-mentioned electricity
The above-mentioned flexibility of road plate more than above-mentioned critical bends angle time, the most above-mentioned light in above-mentioned interfacial refraction,
To penetrate above-mentioned second smooth medium.
4. circuit board curvature detection device as claimed in claim 3, the most above-mentioned critical bends angle root
Determine according to above-mentioned first optical index and above-mentioned second optical index.
5. circuit board curvature detection device as claimed in claim 3, above-mentioned optical conductor unit also includes one
Curved section, has one the 3rd smooth medium and one the 4th smooth medium, when the above-mentioned bending of foregoing circuit plate
When degree is less than above-mentioned critical bends angle, the most above-mentioned light is in above-mentioned 3rd smooth medium, by above-mentioned the
Three smooth media advance with a bending interface reflection of above-mentioned 4th smooth medium, and work as the above-mentioned of foregoing circuit plate
When flexibility is more than above-mentioned critical bends angle, the most above-mentioned light reflects in above-mentioned curved interface, to penetrate
Above-mentioned 4th smooth medium.
6. circuit board curvature detection device as claimed in claim 1, the most above-mentioned critical bends angle root
Determine according to a wavelength of above-mentioned light.
7. circuit board curvature detection device as claimed in claim 5, the most above-mentioned critical bends angle root
Determine in an angle of incidence of above-mentioned interface according to above-mentioned ray relative.
8. circuit board curvature detection device as claimed in claim 1, wherein, above-mentioned wireless charging unit
A stopping charging signals extremely above-mentioned external wireless charging device is transmitted, outside above-mentioned according to above-mentioned alarm signal
Portion's charging device receives above-mentioned stopping charging signals, then stop sending above-mentioned electromagnetic signal.
9. circuit board curvature detection device as claimed in claim 1, the most above-mentioned light is an infrared ray.
10. circuit board curvature detection device as claimed in claim 1, also includes a display unit, root
A warning message is shown according to above-mentioned alarm signal.
11. 1 kinds of circuit board curvature detection methods, including:
Arranging an optical conductor unit a to circuit board, the most above-mentioned optical conductor unit has one first smooth medium
And one second smooth medium, above-mentioned first smooth medium is positioned at the inside of above-mentioned optical conductor unit, and above-mentioned second
The above-mentioned first smooth medium of light media packs is also positioned at the outer layer of above-mentioned optical conductor unit；
A transmitting terminal in above-mentioned optical conductor unit launches a light；
Whether the receiving terminal detecting above-mentioned optical conductor unit receives above-mentioned light, on being not received by
When stating light, then produce an alarm signal；And
Receive the electromagnetic signal of an external wireless charging device to provide power supply to above-mentioned circuit board；
Wherein when a flexibility of circuit board is more than a critical bends angle, above-mentioned optical conductor unit cannot
Transmit above-mentioned light, when the above-mentioned flexibility of circuit board is not less than above-mentioned critical bends angle, above-mentioned light
Line does not passes through above-mentioned second smooth medium.
12. circuit board curvature detection methods as claimed in claim 11, the most above-mentioned optical conductor unit with
Foregoing circuit plate benging.
13. circuit board curvature detection methods as claimed in claim 11, the most above-mentioned first smooth medium,
There is one first optical index, and the second smooth medium, there is one second optical index, and above-mentioned first light
Refractive index is more than above-mentioned second optical index, when the above-mentioned flexibility of foregoing circuit plate is less than above-mentioned critical curved
During bent angle, the most above-mentioned light is in above-mentioned first smooth medium, by above-mentioned first smooth medium and above-mentioned the
One interface reflection of two smooth media is advanced, to conduct to above-mentioned receiving terminal from above-mentioned transmitting terminal, and when above-mentioned
The above-mentioned flexibility of circuit board more than above-mentioned critical bends angle time, the most above-mentioned light in above-mentioned interfacial refraction,
To penetrate above-mentioned second smooth medium.
14. circuit board curvature detection methods as claimed in claim 13, also include adjusting above-mentioned first light
Refractive index and above-mentioned second optical index are to determine above-mentioned critical bends angle.
15. circuit board curvature detection methods as claimed in claim 13, above-mentioned optical conductor unit also includes
One curved section, has one the 3rd smooth medium and one the 4th smooth medium, above-mentioned curved when foregoing circuit plate
When curvature is less than above-mentioned critical bends angle, the most above-mentioned light is in above-mentioned 3rd smooth medium, by above-mentioned
3rd smooth medium advances with a bending interface reflection of above-mentioned 4th smooth medium, and works as the upper of foregoing circuit plate
When stating flexibility more than above-mentioned critical bends angle, the most above-mentioned light reflects in above-mentioned curved interface, to wear
The most above-mentioned 4th smooth medium.
16. circuit board curvature detection methods as claimed in claim 11, also include adjusting above-mentioned light
One wavelength is to determine above-mentioned critical bends angle.
17. circuit board curvature detection methods as claimed in claim 15, also include adjusting above-mentioned light phase
For an angle of incidence of above-mentioned interface to determine above-mentioned critical bends angle.
18. circuit board curvature detection methods as claimed in claim 11, also include:
When above-mentioned receiving terminal does not receive above-mentioned light, transmit a stopping charging signals to said external
Wireless charging device.
19. circuit board curvature detection methods as claimed in claim 11, also include believing according to above-mentioned warning
Number display one warning message in a display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110378927.5A CN103134440B (en) | 2011-11-21 | Circuit board curvature detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110378927.5A CN103134440B (en) | 2011-11-21 | Circuit board curvature detection device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103134440A CN103134440A (en) | 2013-06-05 |
| CN103134440B true CN103134440B (en) | 2016-11-30 |
Family
ID=
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1128318A2 (en) * | 2000-02-21 | 2001-08-29 | Cyberboard A/S | Position detection device |
| CN2449193Y (en) * | 2000-11-23 | 2001-09-19 | 奇普仕股份有限公司 | Machine for checking planeness of circuit board |
| CN2460967Y (en) * | 2001-01-12 | 2001-11-21 | 劲协企业有限公司 | Plate bending testing machine |
| CN102162716A (en) * | 2011-05-19 | 2011-08-24 | 广东成德电路股份有限公司 | Curvature measuring instrument |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1128318A2 (en) * | 2000-02-21 | 2001-08-29 | Cyberboard A/S | Position detection device |
| CN2449193Y (en) * | 2000-11-23 | 2001-09-19 | 奇普仕股份有限公司 | Machine for checking planeness of circuit board |
| CN2460967Y (en) * | 2001-01-12 | 2001-11-21 | 劲协企业有限公司 | Plate bending testing machine |
| CN102162716A (en) * | 2011-05-19 | 2011-08-24 | 广东成德电路股份有限公司 | Curvature measuring instrument |
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