CN105978115A - Induction charging system and method of electric device - Google Patents
Induction charging system and method of electric device Download PDFInfo
- Publication number
- CN105978115A CN105978115A CN201610303595.7A CN201610303595A CN105978115A CN 105978115 A CN105978115 A CN 105978115A CN 201610303595 A CN201610303595 A CN 201610303595A CN 105978115 A CN105978115 A CN 105978115A
- Authority
- CN
- China
- Prior art keywords
- electronic installation
- coil
- detection module
- charging system
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006698 induction Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 17
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 52
- 230000005611 electricity Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000005674 electromagnetic induction Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
Classifications
-
- H02J7/025—
-
- H02J5/005—
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an induction charging system of an electric device which is applied to the electric device. The electric device at least includes a motor equipped with an inner coil. The induction charging system of the electric device includes a secondary coil arranged at an accessory of the inner coil of the motor and the output terminal of the secondary coil is connected with a battery charge control module. The output terminal of the secondary coil is also provided with a current detection module and a power detection module, wherein the current detection module is used for detecting the current value output by the secondary coil while the power detection module is used for detecting the output power of the secondary power. According to the invention, a magnetic field generated by the coil of the electric device is converted to electric energy and error modification is performed on the output power. Resonance error between the secondary coil and a capacitor is compensated, so that the electric device is charged.
Description
[technical field]
The invention belongs to electronic technology field, particularly relate to a kind of electronic installation induction charging system and method.
[background technology]
Current wireless charging technology the most ripe, most common is when belonging to electromagnetic induction wireless charging technology.Mesh
In front industry, widespread practice is close to the position of bonnet at intelligent electronic device (such as smart mobile phone or wrist-watch)
Install a receiving coil, and provide a wireless charging stake (such as cradle) to user.Charging pile is even
Connecing civil power and be converted into low-voltage AC by built-in rectification module, alternating current is built-in through charging pile
Coil produces magnetic field.When intelligent electronic device is near charging pile, magnetic field is to intelligent electronic device bonnet
Coil produces induction electromotive force thus produces electric current and be charged intelligent electronic device.
But, the drawback of this mode it is clear that user needs to carry a charging pile at any time, and
And need the coil of the bonnet of electronic installation to need to be close to charging pile, and it is not allow for too large deviation, no
Then can affect charge efficiency.
[summary of the invention]
It is an object of the invention to provide a kind of electronic installation induction charging system and method, existing in order to solve
There is wireless charging technique must use the problem that electronic installation is charged by an external charging pile.
For achieving the above object, the electronic installation induction charging system implementing the present invention is applied to electronic installation
On, this electronic installation at least includes a motor, and this motor is provided with an Inside coil, and this electronic installation senses
Charging system includes a secondary coil, is located at the Inside coil adnexa of motor, and the output of secondary wire coil
End is connected with battery charging control module, and the outfan of this secondary wire coil is additionally provided with a current detecting mould
Block and power detection module, wherein current detection module is in order to detect the current value of secondary coil output, and
Function detection module is in order to detect secondary coil output.
According to above-mentioned principal character, this motor Inside coil is connected with motor control module, and motor control
Module is all connected with the control unit of electronic installation with battery charging control module, is controlled by electronic installation
Unit controls.
According to above-mentioned principal character, this secondary coil is a lc circuit.
According to above-mentioned principal character, this electronic installation is smart mobile phone.
For achieving the above object, the method bag that above-mentioned electronic installation induction charging system is charged is utilized
Include following steps:
Electronic installation obtains the current value of secondary coil output in real time to determine whether that electric current exports；
Obtain the output valve of the power detection module of secondary coil；
The Power Theory value of the output valve of power detection module with setting is compared；
As do not met, then the operating frequency adjusting motor carries out error correction.
According to above-mentioned principal character, the method also includes that user opens wireless charging in an electronic and reminds
The step of function, when the output valve of power detection module meets the Power Theory value of setting, then electronics dress
Put pop-up dialogue box display charge capacity.
Compared with prior art, the magnetic that the present invention produces by utilizing the coil of electronic installation self device
Being converted into electric energy, and output is carried out error correction, make up between secondary coil and electric capacity is humorous
Shake error.So work as the specific device (such as motor, speaker) on electronic installation operationally, just
The battery of electronic installation can be charged, although the electricity of charging is the least every time, but electronic installation
The use frequency of upper this kind of device is the highest, and quantitative change causes qualitative change, still can be reached for electronic installation and enter
The purpose of row charging.
[accompanying drawing explanation]
Fig. 1 is the composition frame diagram of the electronic installation induction charging system implementing the present invention.
Fig. 2 is the schematic flow sheet of the electronic installation induction charging method implementing the present invention.
[detailed description of the invention]
The cardinal principle of vicarious wireless charging technology is electromagnetic induction principle, is similar to transformator, is sending out
Sending end and receiving terminal are respectively arranged with a coil, by the alternating current of certain frequency, coil midstream on primary coil
Magnetic field can be produced when crossing alternating current, and secondary coil is according to electromagnetic induction principle, can under the influence of a magnetic field
Produce unidirectional current, thus energy is transferred to receiving terminal from transmitting terminal.
From the foregoing, it will be observed that the core of vicarious wireless charging is electromagnetic induction, as long as the magnetic field changed produces,
Just can carry out energy conversion by the coil on electronic installation, and for the charging for electronic installation.?
On existing electronic installation, there is part of devices the most also can produce the magnetic field of change.If can set
During meter, this partial magnetic field of Appropriate application is also converted into electric energy, is charged for electronic installation, then anticipates
Taste electronic installation and is the most also being charged for oneself work when, although this part electric energy is the least,
But owing to being to be charged for a long time, this part electric energy also has certain quantity after taking care of the pence.
Refer to shown in Fig. 1, for implementing the composition frame diagram of the electronic installation induction charging system of the present invention,
The magnetic field when present invention is the motor operations utilizing electronic installation carries out energy conversion.It is known that motor
Operation principle be in armature coil sensing alternating electromotive force by diverter coordinate brush commutation make
With becoming direct electromotive force..The direction of induction electromotive force determines according to the right-hand rule.So motor is in work
During can produce the magnetic field of change, such as Fig. 1 institute shelves, the present invention is by setting near motor Inside coil
Put a secondary coil for collecting electric energy, and this secondary coil is a lc circuit, and this line
The outfan of coil is additionally provided with a current detection module and power detection module, and wherein current detection module is used
With the current value of detection secondary coil output, and function detection module is in order to detect the merit of secondary coil output
Rate.This motor Inside coil is connected with motor control module, and the outfan of secondary wire coil charges with battery
Control module connects, and motor control module and battery charging control module all with the control list of electronic installation
Unit connects, and is controlled by the control unit of electronic installation.
In the circuit design of upper figure, seem very simple, but be to ensure that the electric energy that secondary coil produces
In the charging module that can be transformed into electronic installation smoothly the battery storing electronic installation, it but it is one
The most difficult technology.Defeated power is uploaded at coil, will be at electric capacity, inductance (line in order to improve efficiency of transmission
Circle) select low-impedance device, quality factor Q made improves.LC is had to constitute in this case
The resonant frequency of resonance circuit is the biggest so that the frequency of system design becomes with the collocation of electric capacity, inductance
Extremely difficult.Owing to electric capacity and inductance exist theoretical error, (error of each components and parts can not
With), then need to add resonance in systems and control round-off error factor.
In EM induction system, the signal amplitude on the coil of transmitting terminal i.e. represents output, and
Coil can be seen that within the specific limits on the resonance curve of capacitor combination, and resonant frequency more high amplitude is more
Low.Maximum amplitude will appear in frequency=1/ (2 π √ (LC)).In the provisioning process, we can allow and be
System is operated on a mid frequency, higher than peak swing frequency.
In order to judge whether the power that secondary coil receives meets the requirements, the present invention increases by one at outfan
Individual high-precision power detection module circuit.If secondary coil output is less than theoretical value, then at the beginning of requiring
Level coil reduces operating frequency, in order to improve output.If output is higher than theoretical value, then want
Primary coil is asked to improve frequency, to reduce output, until output coincidence theory performance number.?
Enforcement needs to judge the output of power detection module, and can carry out with built-in theoretical power (horse-power)
Compare, and change the operating frequency of electronic installation motor according to comparative result.Fill to allow user know
The state of electricity, user can open wireless charging prompting function, after user once opens, often in arranging
Secondary motor vibrations also outputs electric energy to charging module, and software will calculate current charge value, according to detection
To electric current be multiplied by the magnitude of voltage at electric capacity two ends, prompting mode ejects with dialog box, and continues three second time,
Dialog box disappears automatically.Fig. 2 is concrete schematic flow sheet, and the electronic installation sensing implementing the present invention is filled
Method for electrically specifically includes following steps:
User opens wireless charging prompting function in an electronic；
The control unit of electronic installation obtains the current value of current detection module detection in real time and determines whether
Electric current exports；
Obtain the output valve of the power detection module of secondary coil；
The Power Theory value of the output valve of power detection module with setting is compared；
Such as coincidence theory value, then pop-up dialogue box display charge capacity；
As do not met, then the operating frequency adjusting motor carries out error correction.
Compared with prior art, the magnetic that the present invention produces by utilizing the coil of electronic installation self device
Being converted into electric energy, and output is carried out error correction, make up between secondary coil and electric capacity is humorous
Shake error.So work as the specific device on electronic installation operationally, will be to the battery of electronic installation
It is charged, although the electricity of charging is the least every time, but this kind of device (such as horse on electronic installation
Reach, speaker) use frequency the highest, quantitative change causes qualitative change, still can be reached for electronic installation
The purpose being charged.
Those of ordinary skill in the art is it is to be appreciated that combine described by the embodiments described herein
Method step, it is possible to electronic hardware, computer software or the two be implemented in combination in, in order to clearly
Chu's ground explanation hardware and the interchangeability of software, the most retouch in general manner according to function
Composition and the step of each example are stated.These functions perform with hardware or software mode actually, depend on
Application-specific and design constraint in technical scheme.Professional and technical personnel can specifically should to each
With using different methods for realizing described function, but this realization is it is not considered that exceed the present invention
Scope.
The method step described in conjunction with the embodiments described herein can use hardware, processor to perform
Software module, or the two be implemented in combination in.Software module can be placed in random access memory (RAM),
Internal memory, read only memory (ROM), electrically programmable ROM, electrically erasable ROM, deposit
Device, hard disk, CD-ROM or well known in the art other forms any storage medium in.
It is understood that for those of ordinary skills, can be according to the technical side of the present invention
Case and inventive concept thereof in addition equivalent or change, and all these change or replace and all should belong to this
Bright appended scope of the claims.
Claims (6)
1. an electronic installation induction charging system, is applied on electronic installation, and this electronic installation at least wraps
Including a motor, this motor is provided with an Inside coil, it is characterised in that: this electronic installation induction charging system
Including a secondary coil, it is located at the adnexa of the Inside coil of motor, and the outfan of secondary wire coil is with electric
Pond charge control module connects, and the outfan of this secondary wire coil is additionally provided with a current detection module and merit
Rate detection module, wherein current detection module is in order to detect the current value of secondary coil output, and power inspection
Survey module in order to detect the power of secondary coil output.
2. electronic installation induction charging system as claimed in claim 1, it is characterised in that: in this motor
Portion's coil is connected with motor control module, and motor control module is equal with battery charging control module and electronics
The control unit of device connects, and is controlled by the control unit of electronic installation.
3. electronic installation induction charging system as claimed in claim 1, it is characterised in that: this secondary wire
Circle is a lc circuit.
4. electronic installation induction charging system as claimed in claim 1, it is characterised in that: this electronics fills
It is set to smart mobile phone.
5. electronic installation is filled by the electronic installation induction charging system that a kind utilizes described in claim 1
The method of electricity, it is characterised in that the method comprises the steps:
Electronic installation obtains the current value of secondary coil output in real time to determine whether that electric current exports；
Obtain the output valve of the power detection module of secondary coil；
The Power Theory value of the output valve of power detection module with setting is compared；
As do not met, then the operating frequency adjusting motor carries out error correction.
6. the method for claim 1, it is characterised in that: the method also includes that user fills at electronics
Put the step of middle unlatching wireless charging prompting function, when the output valve of power detection module meets the merit of setting
During rate theory value, then electronic installation pop-up dialogue box display charge capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303595.7A CN105978115A (en) | 2016-05-09 | 2016-05-09 | Induction charging system and method of electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303595.7A CN105978115A (en) | 2016-05-09 | 2016-05-09 | Induction charging system and method of electric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105978115A true CN105978115A (en) | 2016-09-28 |
Family
ID=56991428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610303595.7A Pending CN105978115A (en) | 2016-05-09 | 2016-05-09 | Induction charging system and method of electric device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105978115A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035267A (en) * | 2009-10-05 | 2011-04-27 | 索尼公司 | Power transmission apparatus, power reception apparatus and power transmission system |
| CN102651569A (en) * | 2011-02-25 | 2012-08-29 | 固昌通讯股份有限公司 | Electronic device |
| CN102917086A (en) * | 2011-08-04 | 2013-02-06 | 中兴通讯股份有限公司 | Mobile terminal and method for providing electric energy for mobile terminal |
| CN203466609U (en) * | 2013-08-22 | 2014-03-05 | 深圳富泰宏精密工业有限公司 | Charging device and portable electronic apparatus therewith |
| US20140159656A1 (en) * | 2012-08-03 | 2014-06-12 | Mediatek Singapore Pte. Ltd. | Dual-mode wireless power receiver |
-
2016
- 2016-05-09 CN CN201610303595.7A patent/CN105978115A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035267A (en) * | 2009-10-05 | 2011-04-27 | 索尼公司 | Power transmission apparatus, power reception apparatus and power transmission system |
| CN102651569A (en) * | 2011-02-25 | 2012-08-29 | 固昌通讯股份有限公司 | Electronic device |
| CN102917086A (en) * | 2011-08-04 | 2013-02-06 | 中兴通讯股份有限公司 | Mobile terminal and method for providing electric energy for mobile terminal |
| US20140159656A1 (en) * | 2012-08-03 | 2014-06-12 | Mediatek Singapore Pte. Ltd. | Dual-mode wireless power receiver |
| CN203466609U (en) * | 2013-08-22 | 2014-03-05 | 深圳富泰宏精密工业有限公司 | Charging device and portable electronic apparatus therewith |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sun et al. | Technology development of electric vehicles: A review | |
| EP4040627A1 (en) | Apparatus and method for detecting foreign objects in wireless power transmission system | |
| CN104701955B (en) | Wireless charging device | |
| CN103765729A (en) | Power relay | |
| CN103887892B (en) | Induction charging device | |
| CN105958658A (en) | Charging position prompt method and electronic equipment | |
| CN106532989A (en) | Wireless charging control circuit, wireless charging control method and electronic device | |
| CN103219754B (en) | single-loop charging device and single-loop charging method | |
| CN107959357A (en) | A kind of wireless charging receiving circuit, frequency adjusting method and smart machine | |
| US20180262065A1 (en) | System and method for frequency prediction | |
| CN109904884A (en) | Wireless charging method, device, terminal, storage medium and electronic device | |
| CN107154682A (en) | A kind of electronic equipment and its control method | |
| JP5451016B2 (en) | Charging equipment, charging method and program | |
| CN103441580A (en) | Charging equipment, electronic device and wireless charging system | |
| CN104104117A (en) | Storage battery charge and discharge equalization control method and system | |
| CN110212598A (en) | Battery charging management method, apparatus and user equipment | |
| CN204633425U (en) | Intelligent electric automobile charging pile | |
| CN207518358U (en) | A kind of charging circuit, electronic equipment and wireless charging system | |
| CN105978115A (en) | Induction charging system and method of electric device | |
| CN205304357U (en) | Mobile terminal | |
| CN201699441U (en) | Portable electronic equipment charging line and mobile phone | |
| CN103605435A (en) | Mouse combination without external charging requirement | |
| CN105846498A (en) | Wireless charge module, electronic device and wireless charge method | |
| CN215185931U (en) | Charging control circuit of digital potentiometer | |
| CN105449813A (en) | A mobile terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160928 |
|
| RJ01 | Rejection of invention patent application after publication |