CN205945249U - Adopt magnetic field principle to carry out wireless charging device who counterpoints - Google Patents
Adopt magnetic field principle to carry out wireless charging device who counterpoints Download PDFInfo
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- CN205945249U CN205945249U CN201620886614.9U CN201620886614U CN205945249U CN 205945249 U CN205945249 U CN 205945249U CN 201620886614 U CN201620886614 U CN 201620886614U CN 205945249 U CN205945249 U CN 205945249U
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Abstract
The utility model belongs to the wireless power supply field especially relates to an adopt magnetic field principle to carry out wireless charging device who counterpoints, the utility model discloses an electric energy transmitting terminal, electric energy receiving terminal, the electric energy transmitting terminal includes transmitting coil controller, transmitting coil, position detecting device, electric energy receiving terminal includes that receiving coil, energy are taked care of and converting circuit, load, it realizes non -touch connection to set up relatively through the clearance between transmitting coil and the receiving coil. When producing high frequency alternating magnetic field between transmitting coil and the receiving coil, according to the counterpoint judgement of accuracy nature of the output voltage of position sensing coil, utilize position sensing coil output voltage's size to judge the distance between transmitting coil and the receiving coil, orientation that the positive negative judgement receiving coil that utilizes position sensing coil output voltage moved for transmitting coil. The utility model discloses from the magnetic field angle, adopt the magnetic field principle to counterpoint, the realization mode is simple, and low cost is reliable and stable, has very strong practical meaning.
Description
Technical field
This utility model belongs to wireless power field, more particularly, to a kind of wireless charging carrying out para-position using magnetic principles
Device.
Background technology
Wireless charging technology, comes from wireless power transmission technology, and low-power wireless charges frequently with induction, such as right
The Qi mode that mobile phone charges, the vicariouss that some electric automobile wireless charging modes adopt at present；High-power wireless charges and often adopts
With resonant mode, most of charging electric vehicle adopts this mode, generally by power supply unit at present（Such as charger）Energy is passed
Deliver to the device of electricity consumption, this device is charged to battery using the energy receiving or is used for itself running.Due to charging
Between device and power device, energy is transmitted with magnetic field, do not run wires between the two, therefore the device of charger and electricity consumption is all
Can accomplish that no conductive junction point exposes.
Compared to wired charging, can accomplish that stealth, equipment attrition rate be low using the equipment of wireless charging, applied range,
The relative reduction of public charged area area, and with high content of technology, easy to operate.Because wireless charging has noncontact, no
Electric wire, the advantage such as removable, this emerging technology is becoming increasingly popular, and starts to be widely used in mobile phone, household electrical appliance, doctor
The fields such as treatment, electric automobile, unmanned plane.
But from the point of view of current situation, one of bottleneck of restriction wireless charging development is exactly that its efficiency is not high enough.Limit wireless
The factor of charge efficiency is many, and principal element therein is exactly distance and transmitting coil and the receiving coil pair of transmission
The accuracy of position.For in theory, the distance of transmission is more remote, two coils（Transmitting coil and receiving coil）The coefficient of coup can get over
Come less, the efficiency of transmission also can be less and less.On the other hand, if the para-position of transmitting coil and receiving coil is forbidden,
Its coefficient of coup can be led to reduce, cause the reduction of efficiency.
For this reason, the method that wants manages to make transmitting coil and receiving coil be in optimum position when wireless charging.Mesh
Before, the various devices being applied to various wireless charging para-positions emerge in an endless stream, but are all to make transformation from machinery mostly, knot
Structure is complicated and transforms highly difficult.
Utility model content
For the deficiencies in the prior art, the utility model proposes a kind of wireless charging Denso carrying out para-position using magnetic principles
Put, solve the problems, such as that wireless charging efficiency is low in the case of position is out-of-alignment, it is reasonable in design, installing engineering amount is little, easy
In realization, cost-effective, intelligence degree is high, sensitivity is high, so that wireless charging device is maintained at high efficiency charged state.
In order to lift wireless power transmission efficiency to greatest extent, this utility model provides one kind to carry out using magnetic principles
The wireless charging device of para-position, including electric energy transmitting terminal（1-1）, electric energy receiving terminal（2-1）, it is characterized in that,
Described electric energy transmitting terminal includes transmitting coil controller（1）, transmitting coil（2）, position detecting device；
Described electric energy receiving terminal includes receiving coil（7）, energy conditioning and change-over circuit（8）, load（9）；
Described transmitting coil controller（1）Outfan and transmitting coil（2）Electrical connection, described energy conditioning and conversion electricity
Road（8）Input and receiving coil（7）Electrical connection；Described energy conditioning and change-over circuit（8）Outfan and load（9）Phase
Even, described transmitting coil（2）And receiving coil（7）Between be oppositely arranged by gap and to realize noncontact and connect；
Described position detecting device includes testing circuit（3）, location sensitive coil（4）, process circuit（5）, signal output
Part（6）, wherein location sensitive coil（4）Transmitting coil is wound on the figure of eight（2）Surface, its area and transmitting coil（2）
Area identical；
Described testing circuit（3）Outfan and segment signal output（6）Input between pass through process circuit（5）Phase
Even, described testing circuit（3）Input and location sensitive coil（4）Electrical connection.
Further, described load（9）For DC load, energy conditioning and change-over circuit（8）Including high-frequency rectification and filter
Wave circuit, described high-frequency rectification and filter circuit are using the fast recovery diode of control switching process, for controlling DC voltage
DC-DC module.
Further, described load（9）For AC load, energy conditioning and change-over circuit（8）Including frequency conversion and change piezoelectricity
Road, described frequency conversion and transforming circuit are AC-DC-AC module.
Further, described location sensitive coil（4）For single turn or multiturn coil, and location sensitive coil（4）Outer
Shape and transmitting coil（2）Profile consistent.
Further, described testing circuit（3）Using voltage peak detection circuit and differential amplifier circuit reduce extraneous because
Element detects the impact of stability to device.
Further, described transmitting coil controller（1）It is connected with power supply, provide high-frequency ac letter including for transmitting coil
Number rectification circuit and inverter circuit.
Further, described process circuit（5）Including ARM single-chip microcomputer, peripheral circuit.
Further, described segment signal output（6）For alarm device or display.
Compared with prior art, this utility model has advantages below：
1st, this utility model, from electromagnetic field angle, analyzes wireless charging device transmitting coil not right with receiving coil
The uneven principle of Distribution of Magnetic Field in the case of standard, only with single location sensitive coil, and coordinates corresponding signal detection electricity
Road, just detects and has told the relative property of both transmitting coil and receiving coil position, compared with other positions detection means,
This device has the advantages that reasonable in design, quantities is little, is easily achieved, cost-effective, intelligence degree is high, sensitivity is high, and
Effectively ensure charge efficiency.
2nd, the wireless charging device carrying out para-position using magnetic principles disclosed in the utility model, can apply to wireless
Charge each occasion applied.For example, after adding this device on the mobile phone wireless popularized now charges, if during charging
Para-position is forbidden, can direct display reminding information on mobile phone screen, or even display path of navigation guide user this how by mobile phone
With transmitting coil be aligned；On the electric automobile using wireless charging, offset information can be shown in department using after this device
On the mobile phone of machine or automobile screen, automobile pool is gone up by guiding driver in place.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2-1 is the location sensitive coil schematic diagram of this utility model embodiment one.
Fig. 2-2 is the location sensitive coil schematic diagram of this utility model embodiment two.
Fig. 2-3 is the part-structure schematic diagram of this utility model embodiment two.
Fig. 3 is the flow chart one that wireless charging para-position realized by this utility model location sensitive coil.
Fig. 4 is the flowchart 2 that wireless charging para-position realized by this utility model location sensitive coil.
Description of symbols：1st, transmitting coil controller, 1-1, electric energy transmitting terminal, 2, transmitting coil, 2-1, electric energy receiving terminal, 3,
Testing circuit, 4, location sensitive coil, 5, process circuit, 6, segment signal output, 7, receiving coil, 8, energy conditioning and changing
Circuit, 9, load.
Specific embodiment
1 to accompanying drawing 4 referring to the drawings, provide specific embodiment of the present utility model, for doing to this utility model
Further illustrate.
Embodiment 1：
As shown in figure 1, the wireless charging device in the present embodiment includes electric energy transmitting terminal 1-1 and electric energy receiving terminal 2-1.Electricity
Transmitting coil controller 1, transmitting coil 2, position detecting device can be included by transmitting terminal 1-1, wherein transmitting coil controller 1 is defeated
Enter end to be electrically connected with 220V city, outfan is connected with transmitting coil 2, transmitting coil controller 1 is internal to include rectification circuit, filtering
The parts such as circuit, inverter circuit, by rectification, are filtered into transmitting coil offer high frequency ac signal.
When will carrying out wireless charging, power to transmitting terminal 1-1 first, the rectification in transmitting coil controller, filter
220V alternating current is become stable DC by ripple part, then through Converting Unit, this direct current is become the height that frequency is kHz or MHz
Frequency exchanges, and this alternating current passes through to generate a high-frequency alternating magnetic field when transmitting coil, now, completes electric field energy and turns
It is changed to the process to emission for the magnetic field energy.
Electric energy receiving terminal includes receiving coil 7, energy conditioning and change-over circuit 8, load 9.Energy conditioning and change-over circuit 8
Input electrically connect with receiving coil 7；The outfan of energy conditioning and change-over circuit 8 is connected with load 9, transmitting coil 2 He
It is oppositely arranged by gap between receiving coil 7 and realize noncontact connection.
If now at receiving coil in place with suitable distance, receiving coil can produce in transmitting coil
Induce electric current in high frequency magnetic field, this electric current is equally the high-frequency alternating current of kHz or MHz, now load supplying just will must
The energy conditioning of correlation must be carried out and change, and energy conditioning and change-over circuit are responsible for the output of receiving coil with load
Join.
Load in the present embodiment is it is desirable that voltage is the unidirectional current of certain value, so load 9 is DC load, energy
Conditioning and change-over circuit 8 then include high-frequency rectification and filter circuit, and now high-frequency rectification circuit must adopt fast recovery diode,
Making diode in switching process have enough time to turn off, if also needing to control DC voltage, DC-DC module must be added.
The position detecting device of electric energy transmitting terminal 1-1 includes testing circuit 3, location sensitive coil 4, process circuit 5, signal
Output par, c 6.It is connected by process circuit 5 between the outfan of testing circuit 3 and the input of segment signal output 6, described
The input of testing circuit 3 is electrically connected with location sensitive coil 4.Testing circuit 3 adopts voltage peak to detect in the present embodiment
Circuit and differential amplifier circuit effectively reduce the impact that extraneous factor detects stability to device, improve the precision of detection.Process
Circuit 5 includes ARM single-chip microcomputer, peripheral circuit, and powerful, processing speed is fast；Process circuit is MCU in the present embodiment.Letter
Number output par, c 6 can be simple report to the police or output para-position cue, adopt in the present embodiment has
The alarm device of warning function.
Location sensitive coil 4 is single turn or multiturn coil, is illustrated with single-turn circular coil in the present embodiment.Position is felt
Coil 4 is answered to be wound on transmitting coil surface with the figure of eight, its area is identical with transmitting coil.The position sense of position detecting device
Answer the shape of coil 4 not to be to determine, change with the change of shape of transmitting coil；Adopt such as accompanying drawing 2-1 in the present embodiment
In square it is also possible to from the circle in accompanying drawing 2-2.Square position detection lines circle and circular position detection lines circle are in knot
Structure be functionally consistent.
Using method refer to the attached drawing 3-4 carrying out para-position of the present embodiment wireless charging device, specially：
During wireless charging, in the case of transmitting, receiving coil be aligned, in transmitting coil, it is passed through high-frequency alternating voltage, meeting
Produce uniform high-frequency alternating magnetic field between transmitting, receiving coil, according to electromagnetic induction principle, this high frequency magnetic field can be at two
Two anti-phase, same to frequencies, the electromotive force of constant amplitude are generated, now this two electromotive force can be mutual in the receiving coil of differential connection
Offset, the output of location sensitive coil is almost 0.
When dispatch coil is not aligned with, the magnetic field intensity at the receiving coil of two differential connections is different, induces
The amplitude of electromotive force is different, and balance is broken, and produces an electric potential difference, and now location sensitive coil output has certain electricity
Pressure, this voltage inputs MPU through circuit such as differential amplification, rectifying and wave-filtering, peakvalue's checking, AD conversion, and MPU is according to the calculation setting
Method correction data simultaneously exports corresponding offset direction and offset distance.MPU is exactly microprocessor unit in the present embodiment, also
It is single-chip microcomputer.
Specifically, set a threshold value first in MPU, the elimination that is disposed to of this threshold value is disturbed, because due to
It also will not be absolute that the reason location sensitive coils such as interference even export in the case of transmitting coil and receiving coil be aligned
0, arrange suitable threshold value just can prevent misoperation；MPU real-time comparison position induction coil in suitable time interval
Output and threshold value relation, once the output of location sensitive coil be more than threshold value, then send alarm signal prompting equipment use
Person's position misalignment, and the direction of positive negative judgement this movement of receiving coil according to the output of location sensitive coil, feel according to position
Answer coil output size judge this movement of receiving coil apart from size, MPU during user movement receiving coil
The output of real-time monitoring location sensitive coil, until its output is less than the threshold value setting.
Compare with other similar devices, this utility model, from electromagnetic field angle, analyzes wireless charging device and sends out
The ray circle principle uneven with Distribution of Magnetic Field under receiving coil misaligned situations, devises the nothing carrying out para-position using magnetic principles
Line charging device, this device has that reasonable in design, quantities is little, implementation is simple, cost-effective, intelligence degree is high, steady
The high advantage of fixed reliability, sensitivity, and effectively ensure charge efficiency.
Embodiment 2：
The wireless charging device adopting in the present embodiment and wireless charging method, similar to embodiment 1, different place
It is that, in the present embodiment, it is desirable that voltage is industrial-frequency alternating current, load 9 is AC load for load, and wherein energy is nursed one's health and changed
Circuit is responsible for the output of receiving coil with load matched；Energy conditioning and change-over circuit 8 then include frequency conversion and transforming circuit, become
Frequency voltage changing module can select AC-DC-AC module.
Using the circle in such as accompanying drawing 2-2, transmitting coil, receiving coil all adopt position detection lines circle in the present embodiment
Circle, in the present embodiment position detection lines circle, transmitting coil, receiving coil annexation as illustrated in figs. 2-3, circular
Position detection lines circle is being structurally and functionally consistent with square position detection lines circle.
Segment signal output 6 exports the cue of para-position by display in the present embodiment, by para-position process middle position
Put the output valve of induction coil, the direction of this movement of receiving coil, this movement of receiving coil give to carry apart from information such as sizes
Show, facilitate equipment user to judge position fixing process.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that the containing of equivalency that will fall in claim
All changes in justice and scope are included in this utility model.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment comprises
One independent technical scheme, only for clarity, those skilled in the art should be by for this narrating mode of description
As an entirety, the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can for description
With the other embodiment understanding.
Claims (7)
1. a kind of wireless charging device carrying out para-position using magnetic principles, including electric energy transmitting terminal（1-1）, electric energy receiving terminal
（2-1）It is characterised in that：
Described electric energy transmitting terminal includes transmitting coil controller（1）, transmitting coil（2）, position detecting device；
Described electric energy receiving terminal includes receiving coil（7）, energy conditioning and change-over circuit（8）, load（9）；
Described transmitting coil controller（1）Outfan and transmitting coil（2）Electrical connection, described energy conditioning and change-over circuit
（8）Input and receiving coil（7）Electrical connection；Described energy conditioning and change-over circuit（8）Outfan and load（9）Phase
Even, described transmitting coil（2）And receiving coil（7）Between be oppositely arranged by gap and to realize noncontact and connect；
Described position detecting device includes testing circuit（3）, location sensitive coil（4）, process circuit（5）, segment signal output
（6）, wherein location sensitive coil（4）Transmitting coil is wound on the figure of eight（2）Surface, its area and transmitting coil（2）Face
Long-pending identical；
Described testing circuit（3）Outfan and segment signal output（6）Input between pass through process circuit（5）It is connected,
Described testing circuit（3）Input and location sensitive coil（4）Electrical connection.
2. as claimed in claim 1 a kind of using magnetic principles carry out para-position wireless charging device it is characterised in that：Described
Load（9）For DC load, energy conditioning and change-over circuit（8）Including high-frequency rectification and filter circuit, described high-frequency rectification and
Filter circuit is using fast recovery diode, the DC-DC module for controlling DC voltage controlling switching process.
3. as claimed in claim 1 a kind of using magnetic principles carry out para-position wireless charging device it is characterised in that：Described
Load（9）For AC load, energy conditioning and change-over circuit（8）Including frequency conversion and transforming circuit, described frequency conversion and transforming circuit
For AC-DC-AC module.
4. as claimed in claim 2 or claim 3 a kind of using magnetic principles carry out para-position wireless charging device it is characterised in that：
Described location sensitive coil（4）For single turn or multiturn coil, and location sensitive coil（4）Profile and transmitting coil（2）'s
Profile is consistent.
5. as claimed in claim 4 a kind of using magnetic principles carry out para-position wireless charging device it is characterised in that：Described
Transmitting coil controller（1）It is connected with power supply, including the rectification circuit providing high frequency ac signal for transmitting coil and inversion electricity
Road.
6. as claimed in claim 5 a kind of using magnetic principles carry out para-position wireless charging device it is characterised in that：Described
Testing circuit（3）The shadow that extraneous factor detects stability to device is reduced using voltage peak detection circuit and differential amplifier circuit
Ring；Described process circuit（5）Including ARM single-chip microcomputer, peripheral circuit.
7. as claimed in claim 6 a kind of using magnetic principles carry out para-position wireless charging device it is characterised in that：Described
Segment signal output（6）For alarm device or display.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160260A (en) * | 2016-08-16 | 2016-11-23 | 中惠创智无线供电技术有限公司 | A kind of wireless charging device using magnetic principles to carry out para-position and method |
| CN106786991A (en) * | 2017-02-16 | 2017-05-31 | 刘崇朴 | A kind of vehicle-mounted unmanned aerial vehicle charging system |
| CN109624763A (en) * | 2019-01-04 | 2019-04-16 | 重庆大学 | A kind of detection coil and the wireless charging guide rail using the coil |
| CN109835201A (en) * | 2019-03-26 | 2019-06-04 | 中国矿业大学 | A kind of wireless charging system for electric automobile electromagnetic mechanism and preparation method thereof |
| CN111220927A (en) * | 2020-03-10 | 2020-06-02 | 中铁电气化局集团有限公司 | Wireless power supply transmission efficiency detection device, system and method |
| CN111371192A (en) * | 2020-03-24 | 2020-07-03 | 山东大学 | Method and system for matching robot wireless charging power and protecting open circuit |
| CN111823916A (en) * | 2019-04-18 | 2020-10-27 | 华为技术有限公司 | Wireless charging alignment method and device, wireless charging system and electric vehicle |
| CN112683151A (en) * | 2020-11-30 | 2021-04-20 | 中车长江车辆有限公司 | Power supply system, mobile device and method for positioning by using power supply network |
| WO2022022153A1 (en) * | 2020-07-28 | 2022-02-03 | Oppo广东移动通信有限公司 | Charging prompt method and apparatus, and device and storage medium |
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2016
- 2016-08-16 CN CN201620886614.9U patent/CN205945249U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160260A (en) * | 2016-08-16 | 2016-11-23 | 中惠创智无线供电技术有限公司 | A kind of wireless charging device using magnetic principles to carry out para-position and method |
| CN106786991A (en) * | 2017-02-16 | 2017-05-31 | 刘崇朴 | A kind of vehicle-mounted unmanned aerial vehicle charging system |
| CN109624763A (en) * | 2019-01-04 | 2019-04-16 | 重庆大学 | A kind of detection coil and the wireless charging guide rail using the coil |
| CN109624763B (en) * | 2019-01-04 | 2023-03-14 | 重庆大学 | Detection coil and wireless charging guide rail adopting same |
| CN109835201B (en) * | 2019-03-26 | 2020-09-04 | 中国矿业大学 | Electromagnetic mechanism of wireless charging system of electric automobile and manufacturing method thereof |
| CN109835201A (en) * | 2019-03-26 | 2019-06-04 | 中国矿业大学 | A kind of wireless charging system for electric automobile electromagnetic mechanism and preparation method thereof |
| CN111823916A (en) * | 2019-04-18 | 2020-10-27 | 华为技术有限公司 | Wireless charging alignment method and device, wireless charging system and electric vehicle |
| CN111220927A (en) * | 2020-03-10 | 2020-06-02 | 中铁电气化局集团有限公司 | Wireless power supply transmission efficiency detection device, system and method |
| CN111371192A (en) * | 2020-03-24 | 2020-07-03 | 山东大学 | Method and system for matching robot wireless charging power and protecting open circuit |
| CN111371192B (en) * | 2020-03-24 | 2022-06-10 | 山东大学 | Method and system for matching robot wireless charging power and protecting open circuit |
| WO2022022153A1 (en) * | 2020-07-28 | 2022-02-03 | Oppo广东移动通信有限公司 | Charging prompt method and apparatus, and device and storage medium |
| CN112683151A (en) * | 2020-11-30 | 2021-04-20 | 中车长江车辆有限公司 | Power supply system, mobile device and method for positioning by using power supply network |
| CN112683151B (en) * | 2020-11-30 | 2023-06-13 | 中车长江车辆有限公司 | Power supply system, mobile device and method for positioning by using power supply network |
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Effective date of registration: 20210317 Address after: 518000 room 133-134, No.1 International Students (Longgang) Pioneer Park, Longcheng street, Longgang District, Shenzhen City, Guangdong Province Patentee after: ZONECHARGE (SHENZHEN) WIRELESS POWER SUPPLY TECHNOLOGY Co.,Ltd. Address before: 264003 Mingda West Road, Laishan District, Yantai, Shandong Province, No. 11 Patentee before: ZHONG HUI POWERISE WIRELESS POWER TECHNOLOGY Ltd. |
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| TR01 | Transfer of patent right |