CN203838665U - Proximity induction device and mobile terminal provided with same - Google Patents
Proximity induction device and mobile terminal provided with same Download PDFInfo
- Publication number
- CN203838665U CN203838665U CN201320828233.1U CN201320828233U CN203838665U CN 203838665 U CN203838665 U CN 203838665U CN 201320828233 U CN201320828233 U CN 201320828233U CN 203838665 U CN203838665 U CN 203838665U
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- fpc
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- proximity induction
- induction device
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- 230000006698 induction Effects 0.000 title claims abstract description 49
- 239000004020 conductor Substances 0.000 claims abstract description 56
- 230000008859 change Effects 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 23
- 230000008569 process Effects 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Abstract
The utility model provides a proximity induction device which comprises a flexible printed circuit board (FPC), a detector and a judging module, wherein conductive materials are laid on a preset area of at least one of the front side and back side of the FPC, capacitance is generated between the FPC and a conductor which is close to the FPC, the detector is used for detecting the variation of the capacitance between the FPC and the conductor and is connected with the FPC, and the judging module is connected with the detector and is used for judging whether a conductor is close to the FPC according to the variation of the capacitance between the FPC and the conductor. According to the proximity induction device, due to the fact that the conductive materials are laid on the preset area of at least one of the front side and back side of the FPC, spare space of the FPC is utilized ingeniously, and the accuracy of proximity induction judgment is improved on the premise that cost is not increased. The utility model further discloses a mobile terminal.
Description
Technical field
The utility model relates to induction detection technique field, relates in particular to a kind of proximity induction device and a kind of mobile terminal with this proximity induction device.
Background technology
Proximity induction technology refers to a technology that determines whether object proximity by sensor, and a lot of smart mobile phones all have proximity induction function.At present, the method that realizes proximity induction mainly contains following two kinds:
The first is by add induction proximity sensor near the receiver of smart mobile phone, wherein, the induction proximity sensor adding is generally infrared ray sensor, its cardinal principle is that infrarede emitting diode is launched infrared ray, when infrared ray runs into after barrier, infrared ray sensor can receive the part infrared ray being reflected by barrier, and detects and determined whether object proximity with this.
The second is by the sensitivity of a pair of induction channels in the touch sensor of lifting smart mobile phone, its principle is when conductor is gradually when the induction channels, the capacitance change of induction channels changes from small to big gradually, until conductor reaches maximal value while touching induction channels, determining thus the process that capacitance change reaches before maximal value is the process of closing on.Particularly, induction channels should take a decision as to whether touch process and also will take a decision as to whether the process of closing on.At conductor, move closer in the process of induction channels, can set in advance three threshold values to the capacitance change of induction channels, be respectively noise threshold, close on threshold value and touch threshold.When capacitance change≤noise threshold, system does not respond; When noise threshold < capacitance change≤close on threshold value, system is judged to be the approaching process of conductor; When capacitance change >=touch threshold, system is judged to be touch process, and quotes touch coordinate simultaneously.
But, above-mentioned two kinds of equal Shortcomings of method.In first method, because infrared light-emitting diode belongs to pointolite, so proximity induction effective coverage is smaller, sometimes cannot sense approaching object, and error rate is higher.In addition, near the receiver of smart mobile phone, add infrared ray sensor, not only increased power consumption, also improved cost.In second method, owing to can having certain error in actual conditions, therefore can improve noise threshold, to guarantee that system does not produce response to noise.Touch threshold is also as a same reason, reduces touch threshold (but must much larger than noise threshold), so that system can accurately be identified each touch process.Can only be between touch threshold and noise threshold and close on threshold value, if close on the too close noise threshold of threshold value setting, real noise may, over closing on threshold value, close on process and cause erroneous judgement thereby trigger.If noise threshold arranges too close touch threshold, be first that the distance that triggers of the process of closing on is too small, be secondly in noisy situation, capacitance change may surpass touch threshold, thus triggering touch process.Therefore, by promotion feeling, answer the method accuracy of channel sensitivity low, poor user experience.
Utility model content
The utility model is intended at least one of solve the problems of the technologies described above.
For this reason, first object of the present utility model is to propose a kind of proximity induction device.This device is laid conductive material by the predeterminable area of at least one side in flexible PCB FPC tow sides, and the ingenious redundant space that utilizes flexible PCB FPC, when not increasing cost, has improved the accuracy that proximity induction is judged.
Second object of the present utility model is to propose a kind of mobile terminal.
To achieve these goals, the proximity induction device that the utility model first aspect proposes, comprise: flexible PCB FPC, the predeterminable area of at least one side in described FPC tow sides is laid conductive material, wherein, when having the contiguous described FPC of conductor, between described FPC and described conductor, produce electric capacity; For detection of the detecting device of capacitance change between described FPC and described conductor, described detecting device is connected with described FPC; Determination module, described determination module is connected with described detecting device, and described determination module judges according to the described FPC and the capacitance change between described conductor that detect whether described conductor closes on described FPC.
According to the proximity induction device the utility model proposes, predeterminable area by least one side in flexible PCB FPC tow sides is laid conductive material, the ingenious redundant space that utilizes flexible PCB FPC, can determine exactly conductor and whether close on FPC, when not increasing cost, improved the accuracy that proximity induction is judged.
To achieve these goals, the mobile terminal that the utility model second aspect proposes, comprises proximity induction device as above.
The mobile terminal the utility model proposes, predeterminable area by least one side in the flexible PCB FPC tow sides in proximity induction device is laid conductive material, the ingenious redundant space that utilizes flexible PCB FPC, can determine exactly conductor and whether close on FPC, can be when not increasing cost, improve the accuracy that proximity induction is judged, improved user's experience.
The aspect that the utility model is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the utility model and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein,
Fig. 1 is according to the structural representation of the proximity induction device of an embodiment of the utility model;
Fig. 2 is according to the front schematic view of the flexible PCB FPC copper paving area of an embodiment of the utility model;
Fig. 3 is according to the schematic rear view of the flexible PCB FPC copper paving area of an embodiment of the utility model;
Fig. 4 is according to the front schematic view of the mobile terminal of an embodiment of the utility model;
Fig. 5 is according to the side schematic view of the mobile terminal of an embodiment of the utility model.
Embodiment
Describe embodiment of the present utility model below in detail, the example of embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.On the contrary, embodiment of the present utility model comprises spirit and all changes within the scope of intension, modification and the equivalent that falls into additional claims.
In description of the present utility model, it will be appreciated that, term " first ", " second " etc. are only for describing object, and can not be interpreted as indication or hint relative importance.In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connects integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.In addition,, in description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
In process flow diagram or any process of otherwise describing at this or method describe and can be understood to, represent to comprise that one or more is for realizing the module of code of executable instruction of the step of specific logical function or process, fragment or part, and the scope of preferred implementation of the present utility model comprises other realization, wherein can be not according to order shown or that discuss, comprise according to related function by the mode of basic while or by contrary order, carry out function, this should be understood by embodiment person of ordinary skill in the field of the present utility model.
Below with reference to accompanying drawing, the proximity induction device proposing according to the utility model embodiment and the mobile terminal with this proximity induction device are described.
The accuracy of judging for improving proximity induction, embodiment of the present utility model has proposed a kind of proximity induction device.
Fig. 1 is according to the structural representation of the proximity induction device of an embodiment of the utility model.
As shown in Figure 1, the proximity induction device proposing according to the utility model embodiment, comprising: FPC(Flexible Printed Circuit, flexible PCB) 100, detecting device 200 and determination module 300.
Wherein, the predeterminable area of at least one side in flexible PCB FPC tow sides is laid conductive material.Particularly, predeterminable area is at least not wiring region of one side in flexible PCB FPC tow sides.Wherein, conductive material can be copper material.As shown in Figure 2 and Figure 3, copper material can be according to the wiring situation of flexible PCB FPC, not having the region of wiring to lay, to avoid short circuit phenomenon.Therefore, copper material can be arbitrary shape.Be understandable that, conductive material can be all materials that can conduct electricity, such as: the metals such as iron, aluminium.That is to say, as shown in Figure 2 or Figure 3, can not carry out large area paving copper in cabling region at FPC tow sides, wherein copper material can be the paving copper that real copper also can be other shapes, and the region 1000 of paving copper as shown in Figure 2 or Figure 3.
When conductor 400 contiguous flexible PCB FPC, conductor 400 forms plate condenser with FPC.Therefore,, when conductor 400 contiguous flexible PCB FPC, between flexible PCB FPC and conductor 400, produce electric capacity, so that detecting device 200 can detect capacitance change between flexible PCB FPC and conductor 400.
As shown in Figure 1, detecting device 200 is connected with flexible PCB FPC, and detecting device 200 is for detection of capacitance change, the i.e. capacitance change of plate condenser between flexible PCB FPC and conductor 400.And detecting device 200 is connected with flexible PCB FPC.Distance size between the electric capacity of plate condenser and flexible PCB FPC and conductor 400 is inverse ratio.Distance between flexible PCB FPC and conductor 400 is larger, and the electric capacity of plate condenser is less.Otherwise the distance between flexible PCB FPC and conductor 400 is less, the electric capacity of plate condenser is larger.
Determination module 300 is connected with detecting device 200, and determination module 300 is according to the flexible PCB FPC detecting and the capacitance change between conductor 400, and the capacitance change of plate condenser, judges whether conductor 400 closes on flexible PCB FPC.Particularly, when capacitance change is less than or equal to noise threshold, be judged to be noise; When capacitance change is greater than noise threshold, judge that conductor 400 closes on flexible PCB FPC.
In embodiment of the present utility model, copper paving area on flexible PCB FPC is equivalent to an electrode of plate condenser, adjacent conductors 400 is equivalent to another electrode of plate condenser, when conductor 400 moves closer to flexible PCB FPC, according to the theoretical model of capacity plate antenna, know, electric capacity between the two can become greatly, when this variable quantity is greater than noise threshold, thereby determination module 300 will be judged to be the process of closing on, response occurs to make.
The proximity induction device of the utility model embodiment, predeterminable area by least one side in flexible PCB FPC tow sides is laid conductive material, the ingenious redundant space that utilizes flexible PCB FPC, can determine exactly conductor and whether close on FPC, when not increasing cost, improved the accuracy that proximity induction is judged.
In addition, the utility model embodiment has also proposed a kind of mobile terminal, and it comprises the proximity induction device that above-described embodiment is described.
Wherein, Fig. 4 is the front schematic view of the mobile terminal of an embodiment of the utility model.As shown in Figure 4, flexible PCB FPC is arranged near the receiver 20 of mobile terminal 10, as induction proximity sensor.Fig. 5 is the side schematic view of the mobile terminal of an embodiment of the utility model.As shown in Figure 5, flexible PCB FPC is arranged between touch panel 110 and touch sensor base material 120.
Particularly, when communicating by letter with host computer, the touch-screen in mobile terminal 10 must be connected by flexible PCB FPC, and flexible PCB FPC always has a face of flexible PCB FPC to press close to the touch panel 110 of mobile terminal 10 when being connected with touch-screen, so just the region of the not cabling of flexible PCB FPC part is all spread to copper and is connected on a capacitance detecting passage and using and judge as proximity induction.Its principle is as follows: when conductor (such as: people's face) gradually when the flexible PCB FPC, between the large area paving copper of conductor and flexible PCB FPC, form electric capacity, according to the principle of electric capacity, distance between the two-plate of capacitance C and electric capacity (being equivalent to people's face and flexible PCB FPC paving copper) is inversely proportional to, that is distance is less, capacitance is larger.And flexible PCB FPC paving copper of the present utility model is directly connected with a capacitance detecting passage in detecting device, thereby detecting device can detect conductor, (such as capacitance change people's face) and between flexible PCB FPC paving copper, thereby determination module can be realized the judgement of the process of closing on.
The mobile terminal the utility model proposes, predeterminable area by least one side in the flexible PCB FPC tow sides in proximity induction device is laid conductive material, the ingenious redundant space that utilizes flexible PCB FPC, can determine exactly conductor and whether close on FPC, can be when not increasing cost, improve the accuracy that proximity induction is judged, improved user's experience.
Should be appreciated that each several part of the present utility model can realize with hardware, software, firmware or their combination.In the above-described embodiment, a plurality of steps or method can realize with being stored in storer and by software or the firmware of suitable instruction execution system execution.For example, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: have for data-signal being realized to the discrete logic of the logic gates of logic function, the special IC with suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (6)
1. a proximity induction device, is characterized in that, comprising:
Flexible PCB FPC, the predeterminable area of at least one side in described FPC tow sides is laid conductive material, wherein, when having the contiguous described FPC of conductor, between described FPC and described conductor, produces electric capacity;
For detection of the detecting device of capacitance change between described FPC and described conductor, described detecting device is connected with described FPC;
Determination module, described determination module is connected with described detecting device, and described determination module judges according to the described FPC and the capacitance change between described conductor that detect whether described conductor closes on described FPC.
2. proximity induction device as claimed in claim 1, is characterized in that, when the contiguous described FPC of described conductor, described conductor and described FPC form plate condenser.
3. proximity induction device as claimed in claim 2, is characterized in that, the distance size between the electric capacity of described plate condenser and described FPC and described conductor is inverse ratio.
4. proximity induction device as claimed in claim 1, is characterized in that, described conductive material is laid at least not wiring region of one side in described FPC tow sides.
5. the proximity induction device as described in any one in claim 1-4, is characterized in that, described conductive material is copper material.
6. a mobile terminal, is characterized in that, comprises the proximity induction device as described in any one in claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828233.1U CN203838665U (en) | 2013-12-13 | 2013-12-13 | Proximity induction device and mobile terminal provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828233.1U CN203838665U (en) | 2013-12-13 | 2013-12-13 | Proximity induction device and mobile terminal provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838665U true CN203838665U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320828233.1U Expired - Lifetime CN203838665U (en) | 2013-12-13 | 2013-12-13 | Proximity induction device and mobile terminal provided with same |
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| CN (1) | CN203838665U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767890A (en) * | 2015-04-23 | 2015-07-08 | 广东欧珀移动通信有限公司 | Alarm clock control method and device based on handheld device |
| WO2018068240A1 (en) * | 2016-10-12 | 2018-04-19 | 华为技术有限公司 | Electronic device and method for detecting proximity of object |
| WO2021072982A1 (en) * | 2019-10-16 | 2021-04-22 | 北京小米移动软件有限公司 | Human body distance detection module of electronic device, electronic device and control method therefor |
-
2013
- 2013-12-13 CN CN201320828233.1U patent/CN203838665U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767890A (en) * | 2015-04-23 | 2015-07-08 | 广东欧珀移动通信有限公司 | Alarm clock control method and device based on handheld device |
| CN104767890B (en) * | 2015-04-23 | 2017-11-07 | 广东欧珀移动通信有限公司 | Alarm clock control method and device based on handheld device |
| WO2018068240A1 (en) * | 2016-10-12 | 2018-04-19 | 华为技术有限公司 | Electronic device and method for detecting proximity of object |
| CN109804338A (en) * | 2016-10-12 | 2019-05-24 | 华为技术有限公司 | The electronic device close for detecting object, method |
| CN109804338B (en) * | 2016-10-12 | 2020-11-10 | 华为技术有限公司 | Electronic device and method for detecting the approach of an object |
| WO2021072982A1 (en) * | 2019-10-16 | 2021-04-22 | 北京小米移动软件有限公司 | Human body distance detection module of electronic device, electronic device and control method therefor |
| US11085756B2 (en) | 2019-10-16 | 2021-08-10 | Beijing Xiaomi Mobile Software Co., Ltd. | Human body distance detection module for electronic device, electronic device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191227 Address after: 518119 1 Yanan Road, Kwai Chung street, Dapeng New District, Shenzhen, Guangdong Patentee after: SHENZHEN BYD MICROELECTRONICS Co.,Ltd. Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009 Patentee before: BYD Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee after: BYD Semiconductor Co.,Ltd. Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee before: BYD Semiconductor Co.,Ltd. Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee after: BYD Semiconductor Co.,Ltd. Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN BYD MICROELECTRONICS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |
|
| CX01 | Expiry of patent term |