CN109167421A - A kind of vehicle-mounted wireless charging device based on touch function - Google Patents
A kind of vehicle-mounted wireless charging device based on touch function Download PDFInfo
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- CN109167421A CN109167421A CN201811316149.5A CN201811316149A CN109167421A CN 109167421 A CN109167421 A CN 109167421A CN 201811316149 A CN201811316149 A CN 201811316149A CN 109167421 A CN109167421 A CN 109167421A
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- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 19
- 230000001360 synchronised effect Effects 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 238000004080 punching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- 239000007858 starting material Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
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- H02J7/025—
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of vehicle-mounted wireless charging devices based on touch function, comprising: power module, synchronous buck conversion circuit, operating voltage provided by automotive power supply is converted to first target voltage；LDO linear power supply voltage regulator circuit, the first target voltage is converted to the second target voltage；MCU microcontroller, to detect whether wireless charging device to be charged, full-bridge resonance drive circuit and wireless charging topological circuit, the full-bridge resonance drive circuit has electromagnetic induction transmitter, to the pwm pulse control signal output sine wave exported according to the MCU microcontroller, and sine wave is made to be loaded onto electromagnetic induction transmitter, to drive the wireless charging topological circuit.With convenience, in startup procedure, as long as mobile phone places charged area, charge the phone automatically.
Description
Technical field
The present invention relates to wireless charging fields, more particularly to a kind of vehicle-mounted wireless charging device based on touch function.
Background technique
Machine, automobile have become communication and the vehicles of people's daily life indispensability, are frequently encountering on the run
The problem of cell-phone battery electric-charge quantity deficiency.Driver, which frequently encounters, to be needed to charge to mobile phone in driving process, and at present
Using automobile by data line connecting with external mobile phone sink, in this way in driving procedure, plug data line structure is brought to driver
Certain risk causes certain inconvenience to driver.
Summary of the invention
Based on this, it is necessary to aiming at the problem that vehicle-mounted wired charging brings inconvenience to driver, provide a kind of base
In the vehicle-mounted wireless charging device of touch function.
A kind of vehicle-mounted wireless charging device based on touch function, comprising:
Power module has power filtering unit, the power filtering unit is to mistake to external automobile power supply
Filter the EMI electromagnetism harmonic interference signals of automotive power supply；
Synchronous buck conversion circuit is electrically connected with the power module, to by work provided by automotive power supply
First target voltage is converted to as voltage；
LDO linear power supply voltage regulator circuit is electrically connected with the synchronous buck conversion circuit, to by the first object
Voltage is converted to the second target voltage；
MCU microcontroller is electrically connected with the LDO linear power supply voltage regulator circuit, to be charged to detect whether
Wireless charging device, if so, output pwm pulse controls signal；
Touch control line plate is electrically connected with the MCU microcontroller, induction wireless charging equipment is used for, when nowhere charging
Equipment contacts the touch control line plate, and the MCU microcontroller output pwm pulse controls signal；
Full-bridge resonance drive circuit and wireless charging topological circuit are electrically connected, institute with the synchronous buck conversion circuit
Full-bridge resonance drive circuit is stated with electromagnetic induction transmitter, the full-bridge resonance drive circuit and synchronous buck conversion electricity
Road and the MCU microcontroller are electrically connected, and the pwm pulse control signal to be exported according to the MCU microcontroller is defeated
Sine wave out, and sine wave is made to be loaded onto electromagnetic induction transmitter, to drive the wireless charging topological circuit.
In a wherein preferred embodiment, the vehicle-mounted wireless charging device further include:
QI protocol circuit is electrically connected at the MCU microcontroller, to realize the electromagnetic induction transmitter with
The both-way communication of wireless charging equipment.
In a wherein preferred embodiment, the QI protocol circuit includes:
FOD foreign bodies detection unit, to have detected whether that foreign matter is set in the electromagnetic induction transmitter with wirelessly to be charged
Between standby.
In a wherein preferred embodiment, the wireless charging topological circuit uses MP-A09 topology protocol.
In a wherein preferred embodiment, the wireless charging topological circuit uses the control mode of constant frequency pressure regulating.
In a wherein preferred embodiment, the power module further include:
Reversed polarity protection circuit, to protect the power module when with the reversal connection of the electrode of the automotive power supply.
In a wherein preferred embodiment, the first target voltage is 5V, and second target voltage is 3.3V.
In a wherein preferred embodiment, the vehicle-mounted wireless charging device further include:
Temperature sensor, charging temperature when detection charging, when the charging temperature is except temperature threshold, the MCU
Microcontroller controls the full-bridge resonance drive circuit and stops charging.
In a wherein preferred embodiment, the vehicle-mounted wireless charging device includes:
CAN bus communicating circuit, to acquire vehicle door status, automobile primary circuit state or the automobile key position letter of automobile
Breath.
In a wherein preferred embodiment, the vehicle-mounted wireless charging device further include:
Warning circuit, for working as inspection according to the vehicle door status of automobile, automobile primary circuit state or automobile key location information
When surveying wireless charging device, alarm signal is issued.
Above-mentioned vehicle-mounted wireless charging device in present embodiment has the advantage that
(1) convenience: contactless, one-to-many charging reduces the trouble of plug, keeps away simultaneously compared with general charger
It is not applicable to have exempted from interface, phenomena such as poor contact, in startup procedure, as long as mobile phone places charged area, has been filled automatically to mobile phone
Electricity.
(2) versatility: having a wide range of application, as long as no matter which kind of equipment can carry out using same wireless charging standard
Wireless charging.
(3) novelty, it is convenient to charge: the present cell phone application function the how powerful, and power consumption condition is it is obvious that if in automobile
The a best choice of user can be undoubtedly for mobile phone wireless charging.
Detailed description of the invention
Fig. 1 is a kind of circuit knot of vehicle-mounted wireless charging device based on touch function of a preferred embodiment of the invention
Structure schematic diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1, a preferred embodiment of the invention discloses a kind of onboard wireless charging dress based on touch function
100 are set, the vehicle-mounted wireless charging device 100 is steady including power module 110, synchronous buck conversion module 120, LDO linear power supply
Volt circuit 130, MCU microcontroller 140, touch control line plate 150, full-bridge resonance drive circuit 160, wireless charging topological circuit
170。
Above-mentioned 110 external automobile power supply of power module, the power module 110 have power filtering unit, the power supply
EMI electromagnetism harmonic interference signals of the filter unit to filter above-mentioned automotive power supply.
Specifically, in electricity production source circuit, conducted noise and low frequency radiation noise are mainly caused by differential mode noise, high frequency spoke
Noise is penetrated mainly to be caused by common-mode noise.EMI electromagnetism harmonic noise interferes in above-mentioned power filtering unit main filtration circuit, full
The requirement of sufficient EMC Standard is that product will not generate electromagnetic interference to the other equipment in circuit.
More preferably, above-mentioned power module 110 have reversed polarity protection circuit, the reversed polarity protection circuit to when with it is described
When the electrode reversal connection of automotive power supply, other elements in above-mentioned power module 110 and circuit are protected.In automotive system, take
Line starter prevents battery reversal connection goods harness Opposite direction connection critically important.Purpose be in order in the case where power supply is reversely connected,
Protection product cannot be damaged.
Above-mentioned synchronous buck conversion circuit 120 is electrically connected with above-mentioned power module 110, to by automotive power supply institute
The operating voltage of offer is converted to first target voltage.In present embodiment, from the voltage of above-mentioned power module 110 exported
For+12V, which is converted to the of+5V for the operating voltage for+12V that power module 110 is exported
One target voltage is somebody's turn to do the first target voltage of+5V to power to above-mentioned full-bridge resonance drive circuit 160, so that full-bridge resonance
Driving circuit 160 can work normally.
Specifically, above-mentioned synchronous buck conversion circuit 120 uses LMR33630 voltage-stablizer, which is one
Money synchronous buck DC-DC converter easy to use, it is possible to provide first-class efficiency, the industrial application harsh suitable for condition
In, low-power consumption is a critical issue.The input voltage driving that LMR33630 is able to use up to 36V is up to the load electricity of 3A
Stream.LMR33630 provides outstanding light-load efficiency and output accuracy with minimum solution size.Such as power supply normal condition mark
The characteristics such as will and accurate enable end help to realize flexible and easy-to-use solution-suitable for being widely applied.
LMR33630 is in frequency of turning back automatically at light load to improve efficiency.This device eliminates most of outer sets by integrated technology
Part, and the pin arrangements mode for aiming at and realizing simple PCB layout and designing is provided.Protection feature includes Thermal shutdown, input undervoltage
Locking, Cycle by Cycle current limit and swinging short protection.
Above-mentioned LDO linear power supply voltage regulator circuit 130 is electrically connected with above-mentioned synchronous buck conversion circuit 120, to by institute
It states first target voltage and is converted to the second target voltage.Specifically, the operating voltage that above-mentioned power module 110 is exported is by same
System output+5V voltage after step decompression converting circuit, using the second mesh of LDO linear power supply voltage regulator circuit output+3.3V
Voltage is marked, the second target voltage for being somebody's turn to do+3.3V is used to power to above-mentioned MCU microcontroller 140, to ensure that MCU microcontroller
Device works normally.
In present embodiment, above-mentioned LDO linear power supply voltage regulator circuit 130 uses LP5912-Q1 chip, the LP5912-Q1
Chip is a low noise LDO linear power supply voltage-stablizer that can be provided and be up to 500mA output electric current.Aim at meet radio frequency (RF) and
The requirement of analog circuit and design, have low noise, high PSRR, low quiescent current and the spies such as low route or load transient response
Property.
Above-mentioned MCU microcontroller 140 is electrically connected with above-mentioned LDO linear power supply voltage regulator circuit 130, the LDO linear power supply
Voltage regulator circuit 130 mainly provides operating voltage for MCU microcontroller 140, and the MCU microcontroller 140 is to have detected whether
Wireless charging device to be charged, if so, output pwm pulse controls signal to above-mentioned full-bridge resonance drive circuit 160.
In present embodiment, above-mentioned MCU microcontroller 140 uses NXP WCT101xA microcontroller, the NXP
WCT101xA microcontroller is a wireless power transmitter controller, is integrated with the wireless power hair for meeting WPC " Qi " standard
The institute of emitter design is functional.Charging equipment is detected using periodic scanning simulation PING mode, once detect equipment, it is micro-
Controller will send message and charging equipment is communicated.
Full-bridge resonance drive circuit 160 and wireless charging topological circuit 170, with above-mentioned 120 electricity of synchronous buck conversion circuit
Property connection, above-mentioned full-bridge resonance drive circuit 160 has an electromagnetic induction transmitter, above-mentioned full-bridge resonance drive circuit and above-mentioned same
It walks decompression converting circuit and above-mentioned MCU microcontroller is electrically connected, to the PWM arteries and veins exported according to above-mentioned MCU microcontroller
Punching control signal exports sine wave, and sine wave is made to be loaded onto electromagnetic induction transmitter, to drive above-mentioned wireless charging topology electricity
Road.
Above-mentioned full-bridge resonance drive circuit 160 is controlled by above-mentioned MCU microcontroller 140, generally, the full-bridge resonant drive
Circuit 160 is made of two half-bridge drivers and the mosfet transistor of rear end 4, and the full-bridge resonance drive circuit 160 is by resonance
Coil is adjusted to 127.7KHz sine wave, and then the sine wave is launched using above-mentioned electromagnetic induction transmitter, finally will
Modulated signal transfers out.
Above-mentioned wireless charging topological circuit 170 is used using MP-A9 wireless charging topology, the MP-A9 wireless charging topology
Be constant frequency pressure regulating control mode, have excellent EMC performance.The pwm pulse control of above-mentioned MCU microcontroller output is above-mentioned
Full-bridge resonance drive circuit 160 exports 127.7KHz sine wave by the full-bridge resonance drive circuit 160, and then by the sine
Wave is loaded into electromagnetic induction transmitter and launches.
Charging equipment has wireless charging receiving terminal, and using electromagnetic induction principle, above-mentioned electromagnetic induction transmitter will
The alternating current of above-mentioned 127.7KHz sine wave generates certain electric current in above-mentioned wireless charging receiving terminal by electromagnetic induction, in turn
Above-mentioned wireless charging receiving terminal is transmitted energy to, and then realizes the charging to charging equipment.
Above-mentioned charging equipment can be mobile phone, tablet computer etc..
Above-mentioned touch control line plate 150 is electrically connected with the MCU microcontroller, is used for induction wireless charging equipment, is worked as nothing
Locate charging equipment and contact the touch control line plate, the MCU microcontroller output pwm pulse controls signal, specifically, above-mentioned touching
Controlling wiring board 150 has charged area panel, and when charged area, panel does not place mobile phone, product works in the suspend mode of low-power consumption
Mode；Standby current is less than 100uA.；After charged area panel places mobile phone, touching wiring board 150 can detect immediately, stand
It wakes up main MCU microcontroller to enter and wireless charging function mobile phone is supported mutually to communicate certification, just opens and fill after the completion of certification
Electricity Functional；If panel placement in charged area is other equipment (non-band wireless charging function mobile phone), touch control line plate 150 can also be stood
It wakes up MCU microcontroller and enters mutually communication, because place apparatus is unable to complete communication certification, charge controller judgement is set thus
Standby is non-band charge function, which enters the suspend mode of low-power consumption again.
Existing market onboard wireless charge controller detects charging equipment using periodic scan simulation PING mode, this
Scheme works mode makes the stand-by power consumption of product in 45mA, causes vehicle stand-by power consumption very big, does not meet automotive engineering requirement.And
Touch control line plate 150 utilizes touch sensor detection technique, completely solves the big problem of stand-by power consumption.
The vehicle-mounted wireless charging device 100 further includes QI protocol circuit 180,180 electricity of QI protocol circuit
Property is connected to the MCU microcontroller 140, to realize the two-way of the electromagnetic induction transmitter and wireless charging equipment
News.The receiving end of charging equipment receives the power of charging in measurement, and the information in relation to required power data is sent back
Transmitter.
The vehicle-mounted wireless charging device 100 further includes FOD foreign bodies detection unit, to have detected whether foreign matter described
Between electromagnetic induction transmitter and wireless charging equipment.If any coin or metal among wireless charging module and mobile phone,
Wireless charging module needs detected, and stop charge function.It is required that 1 jiao that foreign matter is coin can be recognized；5 jiaos；The gold such as 1 yuan
Belong to coin.Specifically detection method are as follows:
1, power loss Power Loss:
1) power loss PLOSSIt is defined as transmission power PPTWith reception power PPRBetween difference, i.e. PLOSS=PPT-PPR,
Energy absorption is provided for FOD (foreign bodies detection).
2) Power Loss is defined as (the BPP mode when the difference for receiving power and transmission power is more than the threshold values of setting
Threshold values is 600mW, and EPP mode threshold is 1000mW),
Continuous judgement is multiple, such as three times, if P each timeLOSSValue is more than threshold values, it is believed that there are foreign matters, enter
Foreign matter guard mode.
2, Q value changes detection method:
Q value detection method is defined as MCU and issues a square wave, and square wave vibrates on coil, and generating one has certain proportion
Damped oscillation waveform, if there is foreign matter exists, wave type energy is absorbed by foreign matter, and waveform tends to be straight, and product judges attenuation ratio
It is abnormal, it is believed that with the presence of foreign matter, into foreign matter guard mode.
The threshold value of above-mentioned detection method can be related according to position, the region of equipment actual installation, and therefore, user of service can root
According to the scene of practical application, unused detection threshold value is set.
The vehicle-mounted wireless charging device further includes temperature sensor 181, the filling when temperature sensor 181 detection is charged
Electro-temperature, when the charging temperature is except temperature threshold, the MCU microcontroller controls the full-bridge resonance drive circuit and stops
Only charge.Specifically, it in wireless charging equipment wireless charging process, is worked, is led to by full-bridge resonance circuit driving coil
Coil output energy is crossed, interior of mobile phone wireless charging receiving module is converted to electric energy, is transferred to charging mobile phone battery.So filling
Electric installation surface region is provided with temperature sensor, when temperature reaches 65 degree, suspends charge function, protects charging equipment；When
After the temperature on charging unit surface drops to 45 degree, it is again turned on charge function, is started to charge.
Above-mentioned vehicle-mounted wireless charging device 100 includes CAN bus communicating circuit 190, which uses
To acquire vehicle door status, automobile primary circuit state or the automobile key location information of automobile.Specifically, CAN bus communication electricity
Road 190 acquires the message data of external modules and sends the message data of own module.Receive BCM module CAN bus report
Literary data include: the antitheft working condition of door state detection signal, the working condition of vehicle power supply, vehicle of four car doors, distant
Control device key position request signal etc..
Above-mentioned vehicle-mounted wireless charging device 100 further includes warning circuit 191, and the warning circuit 191 and above-mentioned CAN bus are logical
It interrogates circuit 190 and realizes data communication, for being believed according to the vehicle door status of automobile, automobile primary circuit state or automobile key position
Breath issues alarm signal when detecting wireless charging device.In present embodiment, above-mentioned warning circuit 190 has buzzer,
The buzzer warning forgets prompting function alarm for realizing mobile phone, and buzzer warning output signal is PWM square-wave signal, period
250mS, duty ratio 50%.
Above-mentioned vehicle-mounted wireless charging device 100 in present embodiment has the advantage that
(1) convenience: contactless, one-to-many charging reduces the trouble of plug, keeps away simultaneously compared with general charger
It is not applicable to have exempted from interface, phenomena such as poor contact, in startup procedure, as long as mobile phone places charged area, has been filled automatically to mobile phone
Electricity.
(2) versatility: having a wide range of application, as long as no matter which kind of equipment can carry out using same wireless charging standard
Wireless charging.
(3) novelty, it is convenient to charge: the present cell phone application function the how powerful, and power consumption condition is it is obvious that if in automobile
The a best choice of user can be undoubtedly for mobile phone wireless charging.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of vehicle-mounted wireless charging device based on touch function characterized by comprising
Power module has power filtering unit, the power filtering unit is to filter vapour to external automobile power supply
The EMI electromagnetism harmonic interference signals of vehicle power supply；
Synchronous buck conversion circuit is electrically connected with the power module, to by the electricity that works provided by automotive power supply
Pressure is converted to first target voltage；
LDO linear power supply voltage regulator circuit is electrically connected with the synchronous buck conversion circuit, to by the first target voltage
Be converted to the second target voltage；
MCU microcontroller is electrically connected with the LDO linear power supply voltage regulator circuit, to be charged wireless to detect whether
Charging equipment, if so, output pwm pulse controls signal；
Touch control line plate is electrically connected with the MCU microcontroller, is used for induction wireless charging equipment, when nowhere charging equipment
The touch control line plate is contacted, the MCU microcontroller output pwm pulse controls signal；
Full-bridge resonance drive circuit and wireless charging topological circuit are electrically connected with the synchronous buck conversion circuit, described complete
Bridge resonance drive circuit has an electromagnetic induction transmitter, the full-bridge resonance drive circuit and the synchronous buck conversion circuit with
The MCU microcontroller is electrically connected, and the pwm pulse control signal to be exported according to the MCU microcontroller exports just
String wave, and sine wave is made to be loaded onto electromagnetic induction transmitter, to drive the wireless charging topological circuit.
2. the vehicle-mounted wireless charging device according to claim 1 based on touch function, which is characterized in that the vehicle-mounted nothing
Line charge electric installation further include:
QI protocol circuit is electrically connected at the MCU microcontroller, to realize the electromagnetic induction transmitter and wireless
The both-way communication of charging equipment.
3. the vehicle-mounted wireless charging device according to claim 2 based on touch function, which is characterized in that the QI agreement
Communicating circuit includes:
FOD foreign bodies detection unit, to detect whether foreign matter in the electromagnetic induction transmitter and wireless charging equipment
Between.
4. the vehicle-mounted wireless charging device according to claim 1 based on touch function, which is characterized in that the wireless charging
Electric topological circuit uses MP-A09 topology protocol.
5. the vehicle-mounted wireless charging device according to claim 4 based on touch function, which is characterized in that the wireless charging
Electric topological circuit uses the control mode of constant frequency pressure regulating.
6. the vehicle-mounted wireless charging device according to claim 1 based on touch function, which is characterized in that the power supply mould
Block further include:
Reversed polarity protection circuit, to protect the power module when with the reversal connection of the electrode of the automotive power supply.
7. the vehicle-mounted wireless charging device according to claim 1 based on touch function, which is characterized in that first mesh
Mark voltage is 5V, and second target voltage is 3.3V.
8. the vehicle-mounted wireless charging device according to claim 1 based on touch function, which is characterized in that the vehicle-mounted nothing
Line charge electric installation further include:
Temperature sensor, charging temperature when detection charging, when the charging temperature is except temperature threshold, the MCU micro-control
Device processed controls the full-bridge resonance drive circuit and stops charging.
9. the vehicle-mounted wireless charging device according to claim 1 based on touch function, which is characterized in that the vehicle-mounted nothing
Line charge electric installation includes:
CAN bus communicating circuit, to acquire vehicle door status, automobile primary circuit state or the automobile key location information of automobile.
10. the vehicle-mounted wireless charging device according to claim 9 based on touch function, which is characterized in that described vehicle-mounted
Wireless charging device further include:
Warning circuit, for according to the vehicle door status of automobile, automobile primary circuit state or automobile key location information, when detection nothing
When line charge electric equipment, alarm signal is issued.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811316149.5A CN109167421A (en) | 2018-11-07 | 2018-11-07 | A kind of vehicle-mounted wireless charging device based on touch function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811316149.5A CN109167421A (en) | 2018-11-07 | 2018-11-07 | A kind of vehicle-mounted wireless charging device based on touch function |
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| Publication Number | Publication Date |
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| CN109167421A true CN109167421A (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811316149.5A Pending CN109167421A (en) | 2018-11-07 | 2018-11-07 | A kind of vehicle-mounted wireless charging device based on touch function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11226706B2 (en) | 2020-01-13 | 2022-01-18 | Cypress Semiconductor Corporation | Low-emissions touch controller |
| CN113972703A (en) * | 2020-07-21 | 2022-01-25 | 北京小米移动软件有限公司 | Wireless charging method, device, terminal and storage medium |
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| CN103187751A (en) * | 2011-12-30 | 2013-07-03 | 致伸科技股份有限公司 | Wireless charging device |
| CN106300700A (en) * | 2016-09-26 | 2017-01-04 | 江苏天安智联科技股份有限公司 | A kind of onboard wireless charger |
| CN207398891U (en) * | 2017-11-20 | 2018-05-22 | 台州新立模塑科技股份有限公司 | A kind of wireless charger |
| CN209016749U (en) * | 2018-11-07 | 2019-06-21 | 必赛斯汽车科技(苏州)有限公司 | A kind of vehicle-mounted wireless charging device based on touch function |
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2018
- 2018-11-07 CN CN201811316149.5A patent/CN109167421A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187751A (en) * | 2011-12-30 | 2013-07-03 | 致伸科技股份有限公司 | Wireless charging device |
| CN106300700A (en) * | 2016-09-26 | 2017-01-04 | 江苏天安智联科技股份有限公司 | A kind of onboard wireless charger |
| CN207398891U (en) * | 2017-11-20 | 2018-05-22 | 台州新立模塑科技股份有限公司 | A kind of wireless charger |
| CN209016749U (en) * | 2018-11-07 | 2019-06-21 | 必赛斯汽车科技(苏州)有限公司 | A kind of vehicle-mounted wireless charging device based on touch function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11226706B2 (en) | 2020-01-13 | 2022-01-18 | Cypress Semiconductor Corporation | Low-emissions touch controller |
| CN113972703A (en) * | 2020-07-21 | 2022-01-25 | 北京小米移动软件有限公司 | Wireless charging method, device, terminal and storage medium |
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