CN109378871A - Vehicle-mounted wireless charging device - Google Patents
Vehicle-mounted wireless charging device Download PDFInfo
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- CN109378871A CN109378871A CN201811162011.4A CN201811162011A CN109378871A CN 109378871 A CN109378871 A CN 109378871A CN 201811162011 A CN201811162011 A CN 201811162011A CN 109378871 A CN109378871 A CN 109378871A
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- 230000001939 inductive effect Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims description 24
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005669 field effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002463 transducing effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000032258 transport 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
- H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/04—Supports for telephone transmitters or receivers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of vehicle-mounted wireless charging device, including driving unit, transmission component, the first clamping limb, the second clamping limb, the first sensing unit, control unit and current sense unit, relative distance between first sensing unit senses and mobile terminal, and the first inductive signal is exported when relative distance is first distance；First sensing unit exports the second inductive signal when relative distance is second distance；Control unit drives transmission component according to the first inductive signal or the second actuated signal control driving unit, so that the first clamping limb and the second clamping limb are moved to direction that is close to each other or being located remotely from each other, to grip or discharge mobile terminal；The operating current of current sense unit detecting driving unit；Control unit control driving unit when operating current is greater than pre-set current value stops driving.In this way, can automatically grip or discharge mobile terminal, it is easy to use.
Description
Technical field
The present invention relates to a kind of vehicle-mounted wireless charging devices.
Background technique
In general, onboard wireless charger is by two clamping limbs on bracket to the peace of mobile phone and other electronic products
Dress is fixed.If user is when mobile phone will be taken out from onboard wireless charger on the way by driving, needs both hands to press onboard wireless and fill
The key switch of electric appliance could release mobile phone from two clamping limbs.In this way, causing traveling to pacify in driving process to user
Full hidden danger, it has not been convenient to use.
Summary of the invention
In view of above content, it is necessary to provide a kind of vehicle-mounted wireless charging device.
A kind of vehicle-mounted wireless charging device, including driving unit, transmission component, the first clamping limb and the second clamping limb, institute
It states the first clamping limb and the second clamping limb and transmission component is sequentially connected, the vehicle-mounted wireless charging device further include:
First sensing unit, first sensing unit are used to sense the relative distance between mobile terminal in real time, and
The first inductive signal is exported when the relative distance is first distance；First sensing unit be also used to it is described it is opposite away from
From to export the second inductive signal when second distance；
Control unit, described control unit is for receiving first inductive signal or second inductive signal, and root
The transmission component is driven according to driving unit described in first inductive signal or the second actuated signal control, so that described first
Clamping limb and second clamping limb are moved to direction that is close to each other or being located remotely from each other, to grip or discharge mobile whole
End；And
Current sense unit, the current sense unit are used to detect the operating current of the driving unit；When the work
When making electric current greater than the pre-set current value, described control unit controls the driving unit and stops driving.
Further, the vehicle-mounted wireless charging device further includes the second sensing unit, and second sensing unit is used for
Relative distance between sensing and sensed object in real time；When the relative distance between first sensing unit and mobile terminal is
When second distance, whether the relative distance between second sensing unit judgement and sensed object is first distance, and with
Relative distance between sensed object exports third sensing signal to described control unit, described control unit when being first distance
The driving unit is controlled according to the third sensing signal and drives the transmission component, so that first clamping limb and described
Second clamping limb moves in the direction away from each other, to discharge the mobile terminal.
Further, the first distance is greater than the second distance.
Further, the first distance is 3cm, and the second distance is 5mm.
Further, the vehicle-mounted wireless charging device further includes wireless charging unit, and the wireless charging unit is used for
Wireless charging is carried out for the mobile terminal.
Further, described control unit includes control chip, and the driving unit includes driving chip, motor, first
Resistance, second resistance, 3rd resistor, first capacitor, the second capacitor and third capacitor, the first signal input of the driving chip
Pin and second signal input pin are separately connected the first universal input output pin of the control chip and second general defeated
Enter output pin, the first signal input pin of the driving chip is also grounded by the first resistor, the driving chip
Second signal input pin be also grounded by the second resistance, the first signal output pin of the driving chip and second
Signal output pin is separately connected the both ends of the motor, and the first signal output pin of the driving chip also passes through described
Second signal output pin described in one capacitance connection；The grounding pin of the driving chip is grounded, the power supply of the driving chip
Pin connects the first end of the 3rd resistor, and the second end of the 3rd resistor is connected to the first power supply and by described second
Capacity earth, the second end of the 3rd resistor also pass through the third capacity earth.
Further, the current sense unit includes detecting chip, the 4th resistance, the 5th resistance, the 5th capacitor and the
Six capacitors, the first input pin of the detecting chip are connected to the electricity of the second end and the driving chip of the 3rd resistor
Second input pin of the first node between source pin, the detecting chip passes through the 4th capacity earth, the detecting chip
The second input pin also pass through the 4th resistance eutral grounding, the first end of the 5th resistance connects the of the detecting chip
Two input pins, the second end of the 5th resistance connect first power supply and pass through the 5th capacity earth.
Further, the current sense unit further include electronic switch, the 6th resistance, the 7th resistance, the 8th resistance and
The power pins of 6th capacitor, the detecting chip connect first power supply and pass sequentially through the 6th resistance and the 7th resistance connects
Ground, the power pins of the detecting chip also pass through the 6th capacity earth, the grounding pin ground connection of the detecting chip, institute
The output pin of detecting chip is stated by the 7th resistance eutral grounding, the output pin of the detecting chip is additionally coupled to the electricity
The first end of sub switch, the second end ground connection of the electronic switch, the third end of the electronic switch passes through the 8th resistance
It is connected to second source, the second node between the third end of the electronic switch and the 8th resistance is connected to the control
The third universal input output pin of chip.
Further, described control unit further includes the 9th resistance and the tenth resistance, and the control chip further includes clock
The clock pins of pin and data pin, the control chip are connected to first sensing unit and the second sensing unit, institute
The clock pins for stating control chip are also connected to third power supply by the 9th resistance, and the data pin of the control chip connects
It is connected to first sensing unit and the second sensing unit, the data pin of the control chip also passes through the tenth resistance and connects
It is connected to third power supply.
Further, first sensing unit and second sensing unit pass through I2C bus and the control is single
Member establishes communication connection.
In above-mentioned vehicle-mounted wireless charging device, through the first sensing unit senses at a distance from mobile terminal, and pass through
Control unit controls the direction movement of the first clamping limb and the second clamping limb.When the first sensing unit is blocked by mobile terminal,
Inductive signal is generated by second sensing unit, with the movement of the direction of the first clamping limb of corresponding control and the second clamping limb.
In this way, which movement can be automatically gripped or discharged according to the inductive signal of the first sensing unit and the second sensing unit
Terminal is easy to use.
Detailed description of the invention
Fig. 1 is the block diagram of the better embodiment of vehicle-mounted wireless charging device and mobile terminal.
Fig. 2 is the module map of the better embodiment of vehicle-mounted wireless charging device and mobile terminal.
Fig. 3 is the circuit diagram of the better embodiment of vehicle-mounted wireless charging device.
Main element symbol description
Vehicle-mounted wireless charging device 100
Mobile terminal 200
Driving unit 10
Motor 12
Transmission component 20
First clamping limb 30
Second clamping limb 32
First sensing unit 40
Control unit 50
Current sense unit 60
Second sensing unit 70
Wireless charging unit 80
Control chip U1
Driving chip U2
Detect chip U3
Resistance R1-R10
Capacitor C1-C6
Power supply V1, V2, V3
Electronic switch Q1
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.
It in order to make the objectives, technical solutions, and advantages of the present invention clearer, below will be in conjunction with attached drawing and implementation
Mode, is described in further detail the vehicle-mounted wireless charging device in the present invention and related description.
Please refer to Fig. 1 and Fig. 2, in an of the invention better embodiment, a kind of vehicle-mounted wireless charging device 100 to for
Mobile terminal 200 carries out wireless charging.In the present embodiment, the mobile terminal 200 is mobile phone.
In a specific embodiment, the vehicle-mounted wireless charging device 100 include driving unit 10, transmission component 20,
First clamping limb 30, the second clamping limb 32, the first sensing unit 40, control unit 50 and current sense unit 60.
In a better embodiment, the vehicle-mounted wireless charging device 100 further includes wireless charging unit 80, the vehicle
It is that the mobile terminal 200 carries out wireless charging that wireless charging device 100, which is carried, by the wireless charging unit 80.
Further, the vehicle-mounted wireless charging device 100 further comprises shell (not shown), the driving unit 10,
Transmission component 20, the first sensing unit 40, control unit 50 and current sense unit 60 are arranged in shell, first clamping
Arm 30, the second clamping limb 32 stretch out shell.First clamping limb 30 and the second clamping limb 32 are sequentially connected with transmission component 20,
The driving unit 10 drives the first clamping limb 30 and the under the control of described control unit 50, through the transmission component 20
Two clamping limbs 32 movement, to grip or discharge the mobile terminal 200 for being placed on surface of shell.The mobile terminal
200 can be the electronic products such as mobile phone, tablet computer.
The driving unit 10 connects the transmission component 20, the transmission component 20 connect first clamping limb 30 and
Second clamping limb 32.The driving unit 10 is for driving the transmission component 20, so that first clamping limb 30
It is moved with second clamping limb 32 to direction that is close to each other or being located remotely from each other.
First sensing unit 40 in real time sense the mobile terminal 200 between relative distance, and
The relative distance exports the first inductive signal when being first distance.First sensing unit 40 be also used to it is described it is opposite away from
From exporting the second inductive signal when being second distance.
For example, close in the mobile terminal 200 when user carries out wireless charging to the mobile terminal 200
During first sensing unit 40, first sensing unit 40 will sense and the mobile terminal 200 in real time
Between relative distance.When the mobile terminal 200 apart from first sensing unit 40 be 3cm when, first sensing is single
Member 40 will export the first inductive signal to described control unit 50.When the mobile terminal 200 is single apart from first sensing
When member 40 is 5mm, whether the relative distance for judging 5mm has been maintained the 3s time by first sensing unit 40, if dimension
It has held the 3s time, first sensing unit 40 will export the second inductive signal to described control unit 50.
Described control unit 50 is for receiving first inductive signal or second inductive signal, and according to described the
Driving unit 10 described in one inductive signal or the second actuated signal control drives the transmission component 20, so that first clamping
Arm 30 and second clamping limb 32 are moved to direction that is close to each other or being located remotely from each other, to grip or discharge the shifting
Dynamic terminal 200.
For example, when described control unit 50 receives the first transducing signal, described control unit 50 will be controlled
The driving unit 10 drives the transmission component 20 so that first clamping limb 30 and second clamping limb 32 to
The direction movement being located remotely from each other.At this point, first clamping limb 30 and the releasable mobile terminal of second clamping limb 32
200.When described control unit 50 receives the second transducing signal, described control unit 50 will control the driving unit 10
The transmission component 20 is driven, so that first clamping limb 30 and second clamping limb 32 are to direction close to each other
Movement.At this point, first clamping limb 30 and second clamping limb 32 can grip the mobile terminal 200.
The current sense unit 60 is used to detect the operating current of the driving unit 10.When the operating current is greater than
When the pre-set current value, described control unit 50 controls the driving unit 10 and stops driving.
For example, drive the first clamping limb 30 and second clamping limb 32 to close to each other in the driving unit 10
Or during the direction movement being located remotely from each other, when first clamping limb 30 and the second clamping limb 32 reach predetermined position,
When motor in the driving unit 10 will enter locked rotor condition, the operating current of the driving unit 10 will quickly increase
Greatly.At this point, whether the operating current for judging the driving unit 10 is greater than predetermined current by the current sense unit 60.If
The operating current is greater than the predetermined current, and described control unit 50 will export stalling control signal to the driving unit
10, stop driving to control motor, to realize motor power-off positioning.
In this way, control described first when first distance apart from first sensing unit 40 in mobile terminal 200
Clamping limb 30 and second clamping limb 32 move in the direction away from each other, mobile terminal 200 can be placed in two folders at this time
Between gripping arm.When mobile terminal 200 is that second distance and the second distance remain default apart from first sensing unit 40
When the time, described control unit controls first clamping limb 30 and second clamping limb 32 and transports to direction close to each other
It is dynamic.At this point, mobile terminal 200 can be gripped, it is easy to use.
In a better embodiment, the vehicle-mounted wireless charging device 100 can also further comprise the second sensing unit
70。
Second sensing unit 70 for sensing the relative distance between sensed object (such as palm) in real time.Work as movement
Terminal 200 is placed in when charging on the vehicle-mounted wireless charging device 100, i.e., described first sensing unit 40 sense with it is mobile
The relative distance of terminal 200 is second distance (such as 5mm).At this point, second sensing unit 70 is the in the relative distance
Third sensing signal is exported when one distance (such as 3cm) to described control unit 50, described control unit 50 is according to the third sense
It surveys the signal control driving unit 10 and drives the transmission component 20, so that first clamping limb 30 and second clamping
Arm 32 moves in the direction away from each other, to discharge the mobile terminal 200.
Further, the first distance is greater than the second distance.In the present embodiment, the first distance is 3cm,
Second distance is 5mm.
In a better embodiment, the vehicle-mounted wireless charging device 100 further comprises charhing unit (not shown),
The vehicle-mounted wireless charging device 100 is that the mobile terminal 200 carries out wireless charging by the charhing unit.
Further, first sensing unit 40 and second sensing unit 70 include that (figure is not for range sensor
Show).
Fig. 3 is the partial circuit diagram of vehicle-mounted wireless charging device 100, and described control unit 50 can further comprise control core
Piece U1, the driving unit 10 include driving chip U2, motor 12, resistance R1-R3, capacitor C1-C3.The control chip U1 packet
Universal input output pin GPIO1-GPIO3 is included, the driving chip U2 includes signal input pin INA, signal input pin
INB, signal output pin OUTA, signal output pin OUTB, power pins VDD, grounding pin GND.
The signal input pin INA and signal input pin INB of the driving chip U2 is separately connected the control chip
The universal input output pin GPIO1 and universal input output pin GPIO2 of U1, the signal input pin of the driving chip U2
INA also passes through the resistance R1 ground connection, and the signal input pin INB of the driving chip U2 also passes through the resistance R2 ground connection,
The signal output pin OUTA and signal output pin OUTB of the driving chip U2 are separately connected the both ends of the motor 12, institute
The signal output pin OUTA of driving chip U2 is stated also by the capacitor C1 connection signal output pin OUTB, the drive
The grounding pin GND ground connection of dynamic chip U2, the power pins VDD of the driving chip U2 connect the first end of the resistance R3,
The second end of the resistance R3 is connected to power supply V1, and is grounded by the capacitor C2, and the second end of the resistance R3 also passes through
The capacitor C3 ground connection.
The current sense unit 60 may include detecting chip U3, resistance R4-R5, capacitor C4-C5.The detecting chip U3
Including input pin INPUT_A, input pin INPUT_B, power pins VCC, grounding pin GND and output pin OUT_A.
It is described detecting chip U3 input pin INPUT_A be connected to the resistance R3 second end and the driving chip
Node P1 between the power pins VDD of U2.The input pin INPUT_B of the detecting chip U3 is grounded by capacitor C4, institute
The input pin INPUT_B for stating detecting chip U3 also passes through the resistance R4 ground connection.Described in the first end connection of the resistance R5
The second end for detecting the input pin INPUT_B, the resistance R5 of chip U3 connects the power supply V1, and passes through the capacitor C5
Ground connection.
The current sense unit can also further comprise electronic switch Q1, resistance R6-R8 and capacitor C6.
The power pins VCC connection power supply V1 of the detecting chip U3, and pass sequentially through the resistance R6 and resistance
R7 ground connection.The power pins VCC of the detecting chip U3 also passes through the capacitor C6 ground connection, the grounding lead of the detecting chip U3
Foot GND ground connection.The output pin OUT_A of the detecting chip U3 is grounded by the resistance R7, and the detecting chip U3's is defeated
Pin OUT_A is additionally coupled to the first end of the electronic switch Q1, the second end ground connection of the electronic switch Q2, the electronics out
The third end of switch Q1 is connected to power supply V2 by the resistance R8, the third end of the electronic switch Q1 and the resistance R8 it
Between node P2 be connected to it is described control chip U1 universal input output pin GPIO3.
Further, the electronic switch Q1 is field-effect tube, first end, second end and the third of the electronic switch Q1
End is respectively grid, source electrode and the drain electrode of the field-effect tube.
Described control unit 50 further includes resistance R9 and resistance R10, and the control chip U1 further includes clock pins SCL_
28 and data pin SDA_28.
The clock pins SCL_28 of the control chip U1 is connected to first sensing unit 40 and the second sensing unit
70, the clock pins SCL_28 of the control chip U1 also passes through the resistance R9 and is connected to power supply V3.The control chip U1
Data pin SDA_28 be connected to first sensing unit 40 and the second sensing unit 70, the data of the control chip U1
Pin SDA_28 also passes through the resistance R10 and is connected to power supply V3.
When carrying out wireless charging to mobile terminal 200, the mobile terminal 200 is constantly close to first sensing unit
40, first sensing unit 40 senses the relative distance between the mobile terminal 200 in real time at this time.In mobile terminal
200 apart from first sensing unit 40 be 3cm when, first sensing unit 40 exports the first inductive signal to the control
Unit 50, described control unit 50 control the driving unit 10, by first clamping limb 30 and second clamping limb
32 move in the direction away from each other, and mobile terminal 200 can be so placed in first clamping limb 30 and described second
Between clamping limb 32.
Then, first sensing unit 40 continues to sense and judge the relative distance between mobile terminal 200.
When be placed on the shell of vehicle-mounted wireless charging device 100 such as mobile terminal 200, mobile terminal 200 and first sensing are single
The distance between member 40 will be in 5mm or so.At this point, first sensing unit 40 will export the second inductive signal to described
Control unit 50, described control unit 50 control the driving unit 10, by first clamping limb 30 and second folder
Gripping arm 32 is moved to direction close to each other, can so be gripped mobile terminal 200.At this point, the wireless charging list
Member can carry out wireless charging to mobile terminal.
When user needs to take out mobile terminal 200 from vehicle-mounted wireless charging device 100, due to first sensing
Unit 40 is blocked by mobile terminal 200, so can not export the first inductive signal so that first clamping limb 30 and institute
The second clamping limb 32 is stated to move in the direction away from each other.At this point, user only need to be by palm or other inductors described second
Sensing unit 70 is nearby incuded, so that second sensing unit 70 generates third inductive signal, described control unit 50
It will be according to driving unit 10 described in third actuated signal control, so that first clamping limb 30 and second clamping limb 32
It moves in the direction away from each other, to discharge the mobile terminal 200, user can take from vehicle-mounted wireless charging device 100
Mobile terminal 200 out.
In above-mentioned vehicle-mounted wireless charging device 100, by first sensing unit 40 sensing and mobile terminal 200 away from
From, and moved by the direction that control unit 50 controls the first clamping limb 30 and the second clamping limb 32.In the first sensing unit 40
When being blocked by mobile terminal 200, inductive signal is generated by second sensing unit 70, controls the first clamping limb 30 with corresponding
It is moved with the direction of the second clamping limb 32.In this way, can be according to the induction of the first sensing unit 40 and the second sensing unit 70
Signal is easy to use with automatically gripping or discharging mobile terminal 200.
Finally it should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although reference
Preferred embodiment describes the invention in detail.Those skilled in the art should understand that can be to of the invention
Technical solution is modified or equivalent replacement, without departing from the spirit and scope of the technical solution of the present invention.Also, based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, will all belong to the scope of protection of the invention.
Claims (10)
1. a kind of vehicle-mounted wireless charging device, including driving unit, transmission component, the first clamping limb and the second clamping limb, described
First clamping limb and the second clamping limb and transmission component are sequentially connected, which is characterized in that the vehicle-mounted wireless charging device also wraps
It includes:
First sensing unit, first sensing unit are used to sense the relative distance between mobile terminal in real time, and in institute
It states when relative distance is first distance and exports the first inductive signal；First sensing unit is also used to
The second inductive signal is exported when second distance；
Control unit, described control unit are used to receive first inductive signal or second inductive signal, and according to institute
It states driving unit described in the first inductive signal or the second actuated signal control and drives the transmission component, so that first clamping
Arm and second clamping limb are moved to direction that is close to each other or being located remotely from each other, to grip or discharge mobile terminal；
And
Current sense unit, the current sense unit are used to detect the operating current of the driving unit；When the work electricity
When stream is greater than the pre-set current value, described control unit controls the driving unit and stops driving.
2. vehicle-mounted wireless charging device as described in claim 1, which is characterized in that the vehicle-mounted wireless charging device further includes
Second sensing unit, second sensing unit for sensing the relative distance between sensed object in real time；When described first
When relative distance between sensing unit and mobile terminal is second distance, the second sensing unit judgement and sensed object it
Between relative distance whether be first distance, and the relative distance between sensed object be first distance when export third sense
Signal is surveyed to described control unit, described control unit is according to the third sensing signal control driving unit driving
Transmission component, so that first clamping limb and second clamping limb move in the direction away from each other, thus described in release
Mobile terminal.
3. vehicle-mounted wireless charging device as claimed in claim 2, which is characterized in that the first distance be greater than described second away from
From.
4. vehicle-mounted wireless charging device as claimed in claim 3, which is characterized in that the first distance be 3cm, described second
Distance is 5mm.
5. vehicle-mounted wireless charging device as claimed in claim 4, which is characterized in that the vehicle-mounted wireless charging device further includes
Wireless charging unit, the wireless charging unit are used to carry out wireless charging for the mobile terminal.
6. vehicle-mounted wireless charging device as described in claim 1, which is characterized in that described control unit includes control chip,
The driving unit include driving chip, motor, first resistor, second resistance, 3rd resistor, first capacitor, the second capacitor and
Third capacitor, the first signal input pin and second signal input pin of the driving chip are separately connected the control chip
The first universal input output pin and the second universal input output pin, the first signal input pin of the driving chip is also
It is grounded by the first resistor, the second signal input pin of the driving chip is also grounded by the second resistance, institute
The first signal output pin and second signal output pin of stating driving chip are separately connected the both ends of the motor, the driving
First signal output pin of chip also connects the second signal output pin by the first capacitor；The driving chip
Grounding pin ground connection, the power pins of the driving chip connect the first end of the 3rd resistor, the 3rd resistor
Second end is connected to the first power supply and by second capacity earth, and the second end of the 3rd resistor also passes through the third
Capacity earth.
7. vehicle-mounted wireless charging device as claimed in claim 6, which is characterized in that the current sense unit includes detecting core
Piece, the 4th resistance, the 5th resistance, the 5th capacitor and the 6th capacitor, the first input pin of the detecting chip are connected to described
First node between the second end of 3rd resistor and the power pins of the driving chip, the second input of the detecting chip
For pin by the 4th capacity earth, the second input pin of the detecting chip also passes through the 4th resistance eutral grounding, and described the
The first end of five resistance connects the second input pin of the detecting chip, the second end connection described first of the 5th resistance
Power supply simultaneously passes through the 5th capacity earth.
8. vehicle-mounted wireless charging device as claimed in claim 7, which is characterized in that the current sense unit further includes electronics
Switch, the 6th resistance, the 7th resistance, the 8th resistance and the 6th capacitor, the power pins connection described first of the detecting chip
Power supply simultaneously passes sequentially through the 6th resistance and the 7th resistance eutral grounding, and the power pins of the detecting chip also pass through the 6th capacitor
The output pin of ground connection, the grounding pin ground connection of the detecting chip, the detecting chip passes through the 7th resistance eutral grounding, institute
The output pin for stating detecting chip is additionally coupled to the first end of the electronic switch, the second end ground connection of the electronic switch, institute
It states the third end of electronic switch and second source is connected to by the 8th resistance, the third end of the electronic switch and described the
Second node between eight resistance is connected to the third universal input output pin of the control chip.
9. vehicle-mounted wireless charging device as claimed in claim 8, which is characterized in that described control unit further includes the 9th resistance
And the tenth resistance, the control chip further include clock pins and data pin, the clock pins of the control chip are connected to
First sensing unit and the second sensing unit, the clock pins of the control chip also pass through the 9th resistance and are connected to
The data pin of third power supply, the control chip is connected to first sensing unit and the second sensing unit, the control
The data pin of chip is also connected to third power supply by the tenth resistance.
10. vehicle-mounted wireless charging device as claimed in claim 2, which is characterized in that first sensing unit and described
Two sensing units pass through I2C bus and described control unit is established and communicated to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811162011.4A CN109378871A (en) | 2018-09-30 | 2018-09-30 | Vehicle-mounted wireless charging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811162011.4A CN109378871A (en) | 2018-09-30 | 2018-09-30 | Vehicle-mounted wireless charging device |
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| CN109378871A true CN109378871A (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811162011.4A Pending CN109378871A (en) | 2018-09-30 | 2018-09-30 | Vehicle-mounted wireless charging device |
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| CN107690014A (en) * | 2017-09-29 | 2018-02-13 | 深圳市科信朗科技有限公司 | A kind of intelligent electric support and its operating method |
| CN207573432U (en) * | 2017-12-19 | 2018-07-03 | 宋敏 | A kind of Automatic-clamping handset bracket |
| CN207790525U (en) * | 2017-12-29 | 2018-08-31 | 深圳市一讯达科技有限公司 | A kind of vehicle-mounted bracket |
| CN209184265U (en) * | 2018-09-30 | 2019-07-30 | 深圳市立誉信科技有限公司 | Vehicle-mounted wireless charging device |
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