CN107733011A - A kind of vehicle-mounted wireless charging device - Google Patents
A kind of vehicle-mounted wireless charging device Download PDFInfo
- Publication number
- CN107733011A CN107733011A CN201710948419.3A CN201710948419A CN107733011A CN 107733011 A CN107733011 A CN 107733011A CN 201710948419 A CN201710948419 A CN 201710948419A CN 107733011 A CN107733011 A CN 107733011A
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- Prior art keywords
- wireless charging
- planar
- carrier
- planar capacitor
- vehicle
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- 239000003990 capacitor Substances 0.000 claims abstract description 69
- 230000008859 change Effects 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 239000011159 matrix material Substances 0.000 claims description 8
- 230000035945 sensitivity Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 4
- 235000019504 cigarettes Nutrition 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 241000052343 Dares Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
Abstract
The invention discloses a kind of vehicle-mounted wireless charging device, including a carrier for being used to placing the electronic equipment with wireless charging function and wireless charging module on the carrier is set, it is characterised in that：Planar capacitance sensor is additionally provided with the carrier, the planar capacitance sensor includes planar capacitor and the sensor detection circuit being connected with the planar capacitor, two pole plates of the planar capacitor are placed at grade, sensing element of the planar capacitor as the planar capacitance sensor, the sensor detection circuit detects the planar capacitor by the electric capacitance change that electronic equipment is close and brings, and the control signal for controlling the wireless charging module to work is produced according to the electric capacitance change detected.The present invention sets planar capacitance sensor, for the purpose of detecting the electronic equipments such as mobile phone, by being analyzed and processed to planar capacitance sensor measurement data, the close of mobile phone is recognized accurately, being shielded close to information to key, coin, wallet, cigarette and the hand of people etc. simultaneously, efficiently avoid the generation of false triggering.
Description
Technical field
The present invention relates to a kind of vehicle-mounted wireless charging device, more particularly, to a kind of car for being capable of automatic detection electronic equipment
Carry wireless charging device.
Background technology
Auto manufacturing of China, which is in, at present dares to exploration, the new stage of autonomous innovation, and each vehicle factor all is making great efforts to seek
Innovative point is sought, makes comfortable, free, romantic running environments for users, the use presentation of various Intelligence sensors is fast
Violent developing state.Mobile phone has become the necessity that current people carry with, and is to prohibit the use of during driving
The call function of mobile phone, but it is that most of drivers generally use that mobile phone, which is used to navigate,.The wireless charging technology of mobile phone is
Current popular trend, has become the standard configuration of some automobiles, wireless mobile phone charger be can initiative recognition go out
Mobile phone it is close, but be not allow mobile phone wireless charger to be chronically at holding state for new-energy automobile, because
It is excessively severe for such power consumption.The close of mobile phone how is detected under extremely low power dissipation, and wake-up letter is sent to charger
Number, conventional method has two methods of photo-electric or contact-making switch formula, and photo-electric power consumption is also very big, the meaning of no use；Machinery
Although formula switchs idle, abrasion is there are, the shortcomings that difficulty is effectively contacted with mobile phone.Also, both detection modes are equal
The defects of foreign matter false triggering be present, can not accurate judgement be mobile phone either key, wallet, coin.
The content of the invention
The technical problems to be solved by the invention are the deficiency for overcoming above-mentioned prior art, there is provided one kind can accurately be known
Other electronic equipment, the vehicle-mounted wireless charging device for preventing false triggering.
According to a kind of vehicle-mounted wireless charging device provided by the invention, including one is used to place with wireless charging function
The carrier of electronic equipment and wireless charging module on the carrier is set, plane capacitance sensing is additionally provided with the carrier
Device, the planar capacitance sensor include planar capacitor and the sensor detection circuit being connected with the planar capacitor,
Two pole plates of the planar capacitor are placed at grade, and the planar capacitor is as the planar capacitance sensor
Sensing element, the sensor detection circuit detects the planar capacitor by the electric capacity quantitative change that electronic equipment is close and brings
Change, and the control signal for controlling the wireless charging module to work is produced according to the electric capacitance change detected.
Also there is following attached technical characteristic according to a kind of vehicle-mounted wireless charging device provided by the invention：
Further comprise, the planar capacitor is at least two groups, and a spacing is spaced between planar capacitor described in each group
From.
Further comprise, the distance of planar capacitor described in each group is not less than 50mm.
Further comprise, two pole plate spacing of the planar capacitor are equal to or more than the carrier thickness of position
Degree.
Further comprise, the planar capacitor is arranged on the outer surface of the carrier.
Further comprise, the planar capacitor is arranged on a matrix, and described matrix attaches on the carrier.
Further comprise, the carrier is the box body structure with accommodating cavity, and planar capacitor described in one of which is set
On the top of the carrier, planar capacitor described in another group is arranged on the bottom of the carrier.
Further comprise, the carrier is plate armature, and the planar capacitor is arranged on described according to a determining deviation
On the bottom surface of carrier.
Further comprise, the power supply mould that the sensor detection circuit includes MCU module, is connected with the MCU module
Block, LIN transceiver modules and electric capacity data-converting block, the LIN transceiver modules communicate with vehicle-mounted BCM,
Had the following advantages that compared with prior art according to a kind of vehicle-mounted wireless charging device provided by the invention：The present invention
Planar capacitance sensor is set, for the purpose of detecting the electronic equipments such as mobile phone, by entering to planar capacitance sensor measurement data
Row analyzing and processing, the close of mobile phone is recognized accurately, while to key, coin, wallet, cigarette and the hand of people etc.
Shielded close to information, efficiently avoid the generation of false triggering.The characteristics of planar capacitance sensor that the present invention uses, is just
It is that quiescent dissipation is extremely low, less than 0.1mA, this is that other sensors are incomparable.Connect again because capacitance type sensor belongs to non-
Measurement is touched, sensor installation is hidden, does not influence outward appearance, and cost is cheap.Charger in a dormant state, does not enter usually to mobile phone
Row charging or detection, so then power consumption fallen below it is minimum, when mobile phone is put into carrier by user, the plane that is installed on carrier
Capacitor detects mobile phone after, can notify BCM by sensor detection circuit, and charger for mobile phone is waken up to mobile phone by BCM
Carry out wireless charging.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of the present invention；
Fig. 2 is the schematic cross-sectional view of working condition of the present invention.
Fig. 3 is the block diagram that sensor of the invention detects circuit.
Fig. 4 is the schematic cross-sectional view of another embodiment of the present invention.
Fig. 5 is the schematic cross-sectional view of the working condition of another embodiment of the present invention.
Embodiment
For the scheme in the clearly explanation present invention, preferred embodiment is given below and is described with reference to the accompanying drawings.With
Under illustrative in nature on be merely exemplary and be not intended to limit the disclosure application or purposes.It should be appreciated that
In the accompanying drawing of whole, corresponding reference represents identical or corresponding part and feature.
As depicted in figs. 1 and 2, a kind of vehicle-mounted wireless charging device provided by the invention, including one be used for place there is nothing
The carrier 1 of the electronic equipment of micro USB Electricity Functional and wireless charging module on this carrier 1 is set, also set on the carrier 1
Planar capacitance sensor is equipped with, the planar capacitance sensor includes planar capacitor 2 and is connected with the planar capacitor 2
Sensor detection circuit 4, two pole plates of the planar capacitor 2 place at grade, and the planar capacitor 2 is made
For the sensing element of the planar capacitance sensor, the sensor detection circuit 4 detects the planar capacitor 1 and set by electronics
Standby 10 is close and the electric capacitance change brought, and is produced according to the electric capacitance change detected and control the wireless charging module work
The control signal of work.Wireless charging module in the present invention is using ripe prior art, to its operation principle and structure, herein
Repeat no more.The present invention primary object be to be provided with planar capacitance sensor, can root using planar capacitance sensor
The characteristics of carrying out accurate judgement object according to dielectric coefficient, the electronic equipment for needing to carry out wireless charging is detected, so as to
The false triggering of foreign matter is effectively prevented, improves reliability.The work of planar capacitor and sensor detection circuit in the present embodiment
Make principle and may refer to the first CN100571035C patents of invention of the present inventor, these principles are repeated no more herein.
Electronic equipment in the present invention can be the electronic equipment that mobile phone or other needs charge, and these electronic equipments have
Wireless charging module.
Referring to Fig. 1 and Fig. 2, further comprise in above-described embodiment that the present invention provides, the planar capacitor 2 is extremely
It is few two groups, it is spaced apart between planar capacitor 2 described in each group.Multigroup planar capacitor is set effectively to judge electricity
The size of sub- equipment, eliminate the false triggering of small articles.The distance of planar capacitor 2 described in each group is not less than 50mm, meanwhile, should be away from
From being also not more than the length of electronic equipment 10 or width so that electronic equipment 10 can be in the inspection of all planar capacitors 2 simultaneously
In the range of survey.
Referring to Fig. 1 and Fig. 2, further comprise in above-described embodiment that the present invention provides, the two of the planar capacitor 2
Individual pole plate spacing is equal to or more than the thickness of the carrier 1 of position.The magnetic field that the structure can be formed two pole plates is empty
Between penetrate carrier, beneficial to two pole plates hide set, it is protected, prevents from wearing.
Referring to Fig. 1 and Fig. 2, further comprise in above-described embodiment that the present invention provides, the planar capacitor is set
In the outer surface of the carrier 1.Planar capacitor 2 in the present embodiment directly attaches or is embedded in the outer surface of the carrier 1,
Electronic equipment 10 will not directly contact with planar capacitor 2.
Referring to Fig. 1 and Fig. 2, further comprise in above-described embodiment that the present invention provides, the carrier 1 is with accommodating
The box body structure of chamber, planar capacitor 2 described in one of which are arranged on the top of the carrier 1, plane capacitance described in another group
Device 2 is arranged on the bottom of the carrier 1.Carrier 1 is arranged to box body structure by the present embodiment, facilitates mobile phone to be put into, and is not easy
Depart from.By 2 one groups of tops for being arranged on side of planar capacitor, another group of bottom for being arranged on other side, diagonally set,
Preferably electronic equipment can be detected.
Referring to Fig. 3, further comprise that the sensor detection circuit 4 includes in above-described embodiment that the present invention provides
MCU module 41, the power module 42 being connected with the MCU module 41, LIN transceiver modules 43 and electric capacity data-converting block
44, the LIN transceiver modules 43 communicate with vehicle-mounted BCM.The model STM8S103F3 of MCU module, power supply mould in the present embodiment
Block and LIN folding and unfolding modules are integrated, and using the TJA1028 of NXP companies, vehicle supply voltage is transformed into sensor internal
The operating voltage and management power supply that can be used, LIN transceiver modules communicate with BCM, while receive BCM control instructions, realize and pass
The various functions of sensor.Electric capacity data-converting block 44 uses AD7150 chips, binary channels capacitance measurement circuit, and sensing electronics is set
It is standby close, the change of capacitance is produced, and electric capacitance change is converted into data signal.
The operation principle of the present embodiment is：
A. in the case where no object enters state, initial base value state is established, stores base value data；
B. object has just enter into carrier 1, and the dielectric constant of the top planar capacitor 2 of installation site changes, plane capacitance
The acceptance sense first of device 2 should change；
C. object continues into the bottom of carrier 1, and installation site occurs close to the dielectric constant of the planar capacitor 2 of bottom
Change, planar capacitor 2 receive sensing and changed；
D. top planar capacitor 2 and the time difference to be changed close to base plane capacitor 2 are calculated, it is too fast and too slow
By abnormality processing, the random disturbance of the electric capacity caused by environmental change is excluded, avoids judging by accident；
E. quantitative analysis is carried out to top planar capacitor 2 and close to the capacitance of base plane capacitor 2, capacitance becomes
Change too small or excessive, hence it is evident that deviate various mobile phones can product electric capacitance change, be determined as that non-mobile phone enters；
F. after waiting object to place steadily, top planar capacitor 2 and the electricity close to base plane capacitor 2 are differentiated again
Capacity with initially without the capacitance in the case of object compared with, meet threshold value and then confirm that mobile phone enters state, otherwise, build again
Vertical base value state, wait triggering next time.
Referring to Fig. 4 and Fig. 5, in another embodiment that the present invention provides, the planar capacitor 2 is arranged on a matrix 3
On, described matrix 3 attaches on this carrier 1.The carrier 1 is plate armature, and planar capacitor is according to one described in two groups
Determining deviation is arranged on the bottom surface of the carrier 1.It is that carrier is slab construction in place of the main difference of the present embodiment, two groups of planes
Capacitor 2 is arranged in described matrix 3, meanwhile, sensor detection circuit 4 is also integrated on matrix 3 in the present embodiment.So collect
It is easier for installation into structure.Other structures are same as the previously described embodiments, repeat no more.
The Cleaning Principle of the present embodiment：
A. without initial base value state under object state, is established, base value data are stored；
B. electronic equipment approaches in any way, all records the electric capacitance change of two groups of planar capacitors；
C. two groups of planar capacitors allow the change in having time；
D. whole transformation periods of two groups of planar capacitors are detected and judged, are pressed very much abnormality processing slowly soon and too, are excluded nothing
The disturbance of the electric capacity caused by environmental change of rule, avoids judging by accident；
E. quantitative analysis is carried out to the capacitance of two groups of planar capacitors 2, it is allowed to which the capacitance of two groups of planar capacitors 2 is deposited
In difference, but difference can not be excessive, and deviation is excessive, illustrates that dimension of object is not inconsistent with mobile phone, such as key, coin are isometric small
Object can only have an impact to an electric capacity, or all produce minor impact to two electric capacity；
F. after waiting object to place steadily, the capacitance of two groups of planar capacitors 2 is differentiated again and initially without object proximity
In the case of capacitance be compared, meet threshold value and then confirm that mobile phone enters state, otherwise, re-establish base value state, wait
Triggering next time.
In summary, above said content is only embodiments of the invention, is merely to illustrate the principle of the present invention, not uses
In restriction protection scope of the present invention.Within the spirit and principles of the invention, any modification for being made, equivalent substitution, change
Enter, should be included in the scope of the protection.
Claims (9)
1. a kind of vehicle-mounted wireless charging device, including one is used to place the carrier of the electronic equipment with wireless charging function and sets
Put wireless charging module on the carrier, it is characterised in that：Planar capacitance sensor is additionally provided with the carrier, it is described
Planar capacitance sensor includes planar capacitor and the sensor detection circuit being connected with the planar capacitor, the plane
Two pole plates of capacitor are placed at grade, sensitivity member of the planar capacitor as the planar capacitance sensor
Part, the sensor detection circuit detects the planar capacitor by the electric capacitance change that electronic equipment is close and brings, and root
The control signal for controlling the wireless charging module work is produced according to the electric capacitance change detected.
A kind of 2. vehicle-mounted wireless charging device as claimed in claim 1, it is characterised in that：The planar capacitor is at least two
Group, it is spaced apart between planar capacitor described in each group.
A kind of 3. vehicle-mounted wireless charging device as claimed in claim 2, it is characterised in that：Planar capacitor described in each group away from
From not less than 50mm.
A kind of 4. vehicle-mounted wireless charging device as claimed in claim 1, it is characterised in that：Two poles of the planar capacitor
Plate spacing is equal to or more than the carrier thickness of position.
A kind of 5. vehicle-mounted wireless charging device as claimed in claim 1, it is characterised in that：The planar capacitor is arranged on institute
State the outer surface of carrier.
A kind of 6. vehicle-mounted wireless charging device as claimed in claim 1, it is characterised in that：The planar capacitor is arranged on one
On matrix, described matrix attaches on the carrier.
A kind of 7. vehicle-mounted wireless charging device as claimed in claim 2, it is characterised in that：The carrier is with accommodating cavity
Box body structure, planar capacitor described in one of which are arranged on the top of the carrier, and planar capacitor described in another group is set
In the bottom of the carrier.
A kind of 8. vehicle-mounted wireless charging device as claimed in claim 2, it is characterised in that：The carrier is plate armature,
The planar capacitor is arranged on according to a determining deviation on the bottom surface of the carrier.
A kind of 9. vehicle-mounted wireless charging device as claimed in claim 1, it is characterised in that：The sensor detection circuit includes
MCU module, the power module being connected with the MCU module, LIN transceiver modules and electric capacity data-converting block, the LIN are received
Module is sent out to communicate with vehicle-mounted BCM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948419.3A CN107733011A (en) | 2017-10-12 | 2017-10-12 | A kind of vehicle-mounted wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948419.3A CN107733011A (en) | 2017-10-12 | 2017-10-12 | A kind of vehicle-mounted wireless charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107733011A true CN107733011A (en) | 2018-02-23 |
Family
ID=61210517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710948419.3A Pending CN107733011A (en) | 2017-10-12 | 2017-10-12 | A kind of vehicle-mounted wireless charging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107733011A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| WO2014141537A1 (en) * | 2013-03-14 | 2014-09-18 | 日立マクセル株式会社 | Wireless charging module and wireless charging system |
| CN204012802U (en) * | 2014-06-24 | 2014-12-10 | 山东共达电声股份有限公司 | A kind of wireless charging box |
| CN105337332A (en) * | 2014-08-14 | 2016-02-17 | 鸿富锦精密工业（深圳）有限公司 | Vehicle-mounted wireless charging device |
| CN207530561U (en) * | 2017-10-12 | 2018-06-22 | 北京奥特易电子科技有限责任公司 | A kind of vehicle-mounted wireless charging device |
-
2017
- 2017-10-12 CN CN201710948419.3A patent/CN107733011A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1491840A (en) * | 2003-09-19 | 2004-04-28 | 孙滕谌 | Plane capacity type automatic wiper system intelligent sensor for automobile glass |
| CN1491836A (en) * | 2003-09-19 | 2004-04-28 | 孙滕谌 | Plane curve capacity type for removing system intelligent sensor for automobile glass |
| CN2765181Y (en) * | 2005-01-28 | 2006-03-15 | 孙滕谌 | Sensor for automatic rain brush system |
| CN101087135A (en) * | 2006-06-08 | 2007-12-12 | 孙滕谌 | Plane capacitance sensor and method for detecting environmental change of motorcar glass |
| CN103928990A (en) * | 2013-01-15 | 2014-07-16 | 建兴电子科技股份有限公司 | Wireless Charger With Combined Electric Radiation Shielding And Capacitive Sensing Functions |
| WO2014141537A1 (en) * | 2013-03-14 | 2014-09-18 | 日立マクセル株式会社 | Wireless charging module and wireless charging system |
| CN203434702U (en) * | 2013-08-27 | 2014-02-12 | 刘咏裕 | Wireless charging device |
| CN204012802U (en) * | 2014-06-24 | 2014-12-10 | 山东共达电声股份有限公司 | A kind of wireless charging box |
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