CN109450115A - The transmitting terminal of radio energy emitter and wireless charging - Google Patents
The transmitting terminal of radio energy emitter and wireless charging Download PDFInfo
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- CN109450115A CN109450115A CN201811654656.XA CN201811654656A CN109450115A CN 109450115 A CN109450115 A CN 109450115A CN 201811654656 A CN201811654656 A CN 201811654656A CN 109450115 A CN109450115 A CN 109450115A
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- radio energy
- energy emitter
- annular frame
- planar coil
- departure
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- 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
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
- H02J50/23—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
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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 invention discloses a kind of radio energy emitter and the transmitting terminals of wireless charging, the radio energy emitter includes at least three electric energy planes of departure, the electric energy plane of departure is formed by single planar coil, and any two electric energy plane of departure in the electric energy plane of departure intersects and is arranged in three-dimensional structure.Therefore the magnetic field strength in the transmitting and enhancing all directions in all directions of magnetic field strength may be implemented.The present invention is able to solve is wirelessly transferred space compared with minor issue in the prior art.
Description
Technical field
The present invention relates to wireless charging technical field more particularly to the hairs of a kind of radio energy emitter and wireless charging
Penetrate end.
Background technique
Wireless power transmission, also known as wireless power transmission or transmitting non-contact electric energy refer to through specific transmitter
The relaying energy (such as electromagnetism field energy, laser, microwave and mechanical wave) for converting electrical energy into other forms is launched, then passes through
Specific receiver is converted to electric energy for energy is relayed, and realizes wireless power transmission.
According to the difference for relaying form of energy in energy transport, wireless power transmission can be divided into: magnetic (field) manifold type,
Electric (field) manifold type, electromagnetic radiation formula (such as solar radiation), mechanical wave manifold type (ultrasound).Wherein, magnetic coupling type is current (21
Beginning of the century) a kind of research wireless power transmission mode burning the hotest, that is, high frequency electric source is loaded into transmitting coil, make to send out
Ray circle generates high frequency magnetic field under power supply excitation, and receiving coil generates couple current, under the effect of this high frequency magnetic field with this reality
Existing wireless power transmission.
Nowadays, more and more electronic products bring great convenience for the Working Life of people, but traditional electric power
Transmission mode is by conducting wire or socket mostly by power transmission to end product.With mobile device, wireless data transmission, nothing
Line network technology becomes increasingly popular, and it is desirable to get rid of the constraint of conventional electric power transmission mode, releases numerous and disorderly power supply line and brings
Puzzlement.Wireless power transmission technology becomes 21 century technology most worthy of expecting as a result, and the product that wirelessly conducts electricity is closed as people
The new focus of note.
Wireless power transmission technology does not generate radiation, and safety has passed through FCC (Federal Communications
Commission, US Federal Communication Committee), IEEE (Institute of Electrical and Electronics
Engineers, American Institute of Electrical and Electronics Engineers) and CCC (China Compulsory Certification, China
Forcible authentication) etc. standard authentications, will not only generate danger, it is thus also avoided that the equiprobable peace such as hot plugging, power supply line short circuit
Full hidden danger.Under the premise of ensuring safety, wireless power mode can thoroughly solve room wiring it is in disorder, arrester location is solid
Fixed, socket destroys the problems such as house fitting etc., and it is more convenient and beautiful to bring to our life.Importantly, wireless supply
Electricity saves a large amount of wire rod, therefore the either consumption of the metals such as rubber, plastics or copper, tin will all be greatly reduced,
It economizes on resources, reduce pollution, low-carbon environment-friendly.
But wirelessly conducting electricity product, especially low power class product on the market at present, effective propagation path very by
Limit, need radio energy emitter to fit to radio energy reception device just can be carried out electric energy transmission together.Work as radio
Energy reception device once leaves radio energy emitter (more than 3mm distance), and electric energy just stops transmitting.This kind conducts electricity mode,
Can not real meaning accomplish wireless (compared with wireless router or WIFI), contactless power transfer can only be known as
(Contactless Power Transfer).(range that conducts electricity is the transmission line using socket as the center of circle with the transmission of original wired mode
For the sphere of radius) it compares, the product that wirelessly conducts electricity at present (range that conducts electricity is wireless transmission one point of radio energy emitter)
It loses and much has the special feature that originally instead, and have no advantage.
Summary of the invention
The main purpose of the present invention is to provide a kind of radio energy emitters, it is intended to change existing wireless transmission space
Lesser problem.
To achieve the goals above, the present invention provides a kind of radio energy emitter, the radio energy emitter packet
At least three electric energy planes of departure are included, the electric energy plane of departure is formed by single planar coil, at least three electric energy hairs
Any two planar coil penetrated in plane intersects and is arranged in three-dimensional structure.
Preferably, the electric energy plane of departure described in any two in at least three electric energy planes of departure, which just intersects, sets
It sets.
Preferably, each planar coil is rounded or polygon is arranged.
Preferably, the radio energy emitter further includes in the skeleton of three-dimensional structure setting, the skeleton tool
There are three the corresponding winding section being located on tri- Spatial Dimensions of A, B, C, three planar coil correspondences are set around described in three
On winding section；The material of the skeleton is resin, north material, Ferrite Material, ceramic material and Meta Materials substance.
Preferably, the winding section includes annular frame, radiates from the annular frame to the annular frame center
Multiple spokes, by multiple spoke coiling conducting wires to form the planar coil；
Alternatively,
The winding section includes mounting bracket and multiple spokes using the mounting bracket as the centre of sphere to a planar radiation, is led to
It crosses in multiple spoke coiling conducting wires to form the planar coil.
Preferably, multiple spokes are provided with multiple via holes along its radiation direction, so that coiling forms the planar coil
Conducting wire passes through.
Preferably, the contour direction for the planar graph that via hole is formed through spoke.
Preferably, the annular frame is in circular ring shape or polygon.
Preferably, the annular frame is in circular ring shape, radially extend setting of multiple spokes along the annular frame, and phase
The spoke spacing intervals setting of neighbour two.
Preferably, the center of the annular frame is provided with fixed part, and multiple spokes are radiated to the annular
One end of the center of frame is connect with the fixed part.
Preferably, the fixed part is in disk form or circular ring shape.
Preferably, one end that multiple spokes are radiated to the center of the annular frame is connected with each other.
Preferably, each spoke is provided with multiple cableties along its length.
Preferably, three planar lines are formed by the one-to-one coiling on three winding sections of three conducting wires
Circle.
Preferably, each planar coil is planar spiral winding.
Preferably, the material of each planar coil is copper, silver, superconductor and yttrium oxide barium copper；
The conducting wire of the planar coil is single-core line, split conductor and litz wire.
In addition, to achieve the above object, the present invention also provides a kind of transmitting terminal of wireless charging, including control circuit and such as
The upper radio energy emitter.
The present invention is by at least three electric energy planes of departure of setting, by any two electric energy in three electric energy planes of departure
The plane of departure intersects and is arranged in three-dimensional structure, and the electric energy plane of departure is formed by single planar coil.Specifically, it puts down for three
Any two coil intersection in planar coil and in that all coils can be made to be placed in three-dimensional structure after three-dimensional structure setting, when logical
After electricity, the magnetic field that three coils are formed is formed around each coil, and because three planar coils are placed in different dimensions
Three-dimensional space, it can thus be concluded that, the magnetic field that three planar coils are formed is also distributed about in three-dimensional space, and 360 degree launch outward, and
And since magnetic field strength is vector, it is possible to be superimposed in space, therefore, magnetic field range can be beyond under same current strength
The magnetic field propagation distance and range of two-dimensional surface coil.Therefore, it can solve the lesser problem in existing wireless transmission space.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the schematic perspective view of radio energy emitter of the present invention；
Fig. 2 is the top view of radio energy emitter of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
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 embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention provides a kind of radio energy emitter, in the occasion for various chargings.
Referring to figs. 1 to Fig. 2, in one embodiment, which includes three planar coils, three planes
Any two planar coil in coil intersects and is arranged in three-dimensional structure.
In the above-described embodiments, by the way that at least three electric energy planes of departure are arranged, wherein the electric energy plane of departure is by individually putting down
Planar coil 103 is formed, and any two electric energy plane of departure in at least three electric energy planes of departure intersects and sets in three-dimensional structure
It sets or any two planar coil 103 in three planar coils 103 is intersected and is arranged in three-dimensional structure.It has kept away at this time
The coincidence of the electric energy plane of departure or parallel situation that occur where two coils are exempted from.Wherein, appoint in three planar coils 103
Anticipate the intersection of two coils and in all coils being made to be placed in three-dimensional structure after three-dimensional structure setting, after energization, three
The magnetic field that the electric energy plane of departure where coil is formed is around each coil, and because three planar coils 103 are placed in difference
Dimension on, formed three-dimensional space, it can thus be concluded that, three planar coils 103 formed magnetic field be also distributed about in three-dimensional space,
360 degree launch outward, and since magnetic field strength is vector, it is possible to be superimposed in space, therefore, magnetic field range can exceed
The magnetic field propagation distance and range of two-dimensional surface coil 103 under same current strength.So as to solve existing wireless transmission
The lesser problem in space.
Optionally, any two electric energy plane of departure in at least three electric energy planes of departure is just intersecting setting.
In above-described embodiment, after any two electric energy plane of departure just intersects setting, the magnetic field that generates after coil is powered
Only on two-dimensional surface, after the last one plane intersects with the two planes, three coils constitute three-dimensional space,
So that the magnetic field after being powered covers in three-dimensional space, and due to the Overlay of magnetic field strength, so that magnetic comprehensively
Range of the coverage area of field far beyond three-dimensional space.In addition, the just intersection of any two planar coil 103 can make
The magnetic field strength for calculating some empty point of three-dimensional space is more convenient, specific formula for calculation are as follows:
According to the spatial position distance and the first preset formula of the relatively described radio energy emitter of the reception device
Determine the magnetic field strength of reception device；Wherein, first preset formula are as follows:
Wherein, EPRepresent reception device magnetic field strength, μ0For hollow dielectric constant, N is radio energy emitter coil turn
Number, l are distance of the reception device to the magnetic field transmission space origins, IA、IBAnd ICIn coil for tri- directions X, Y, Z
Current strength, θA、θBAnd θCFor the current phase size in the coil in tri- directions X, Y, Z, ω is power frequency, θPTo receive
Device magnetic vector and maximum field angular separation,Angle is projected for reception device and horizontal plane.
And vertical above-mentioned formula later does not need to correct planar coil 103 two-by-two, in the first embodiment, any two
A planar coil 103 intersects and is arranged in three-dimensional structure, if without words perpendicular to each other, if certain need to be calculated using above-mentioned formula
The magnetic field strength of a point, it is also necessary to carry out a certain range of amendment.
Optionally, each 103 place plane of planar coil is rounded or polygon is arranged.
Wherein, when setting that each 103 place plane of planar coil is rounded, the three-dimensional space constituted is ball, corresponding
Magnetic field transmission space be also ball, the radius in magnetic field transmission space is greater than three-dimensional space.When each 103 place plane of planar coil
When being arranged in polygon, the three-dimensional space constituted is corresponding polyhedron, and corresponding magnetic field transmission space is also polyhedron at this time,
The distance at center in three-dimensional space center to any one face of polyhedron is respectively less than the center in magnetic field transmission space and appoints to polyhedron
Anticipate a face center distance.It is worth noting that, the specific range of the three-dimensional space and magnetic field transmission space that constitute at this time
Be also possible to the change due to the size and phase of the electric current for flowing through planar coil 103 and change formation three-dimensional space and magnetic field pass
The size in defeated space, but generally speaking, three-dimensional space is less than the size in magnetic field transmission space.
Optionally, radio energy emitter further includes in the skeleton of three-dimensional structure setting, and there are three right for skeleton tool
The winding section on tri- Spatial Dimensions of A, B, C should be located at, three correspondences of planar coil 103 are set around on three winding sections.
Further, in above-described embodiment, three correspondences of planar coil 103 are set around on three winding sections, Ke Yiqi
To good fixed function.
Optionally, the material of skeleton is the materials such as resin, plastics, Ferrite Material, ceramic material and Meta Materials substance.
It wherein, can preferable fixed pan because it has good preferable hardness using above-mentioned material production skeleton
Coil 103, while these materials have preferable insulating properties.In these materials, " Meta Materials (metamaterial) " is referred to
Some structures with engineer and the composite material for showing extraordinary physical property not available for natural material." super material
Material " a kind of new material that (Metamaterial) has occurred since being 21 century, has particularity not available for natural material
Matter, and these properties are mainly from artificial special construction.On the other hand, since the dielectric constant of these skeletons is larger, also
It can be further improved the intensity in magnetic field caused by planar coil 103.
Optionally, winding section include annular frame 104, radiate from annular frame 104 to 104 center of annular frame it is multiple
Spoke 102, by multiple 102 coiling conducting wires of spoke to form planar coil 103.Or winding section include mounting bracket and with
Mounting bracket is multiple spokes 102 of the centre of sphere to a planar radiation, by described to be formed in multiple spoke coiling conducting wires
Planar coil 103.
Further, in one embodiment, winding section includes annular frame 104, from annular frame 104 to annular frame
104 centers radiation multiple spokes 102, by multiple 102 coiling conducting wires of spoke to form planar coil 103.At this point, in ring
Spoke 102 is set on shape frame 104, distance and path that each coil winding one encloses and entire coil can be set on demand
The style of position and coiling forming facilitates the processing and magnetic field strength of follow-up data to preferably be fixed on a certain position
It calculates and adjusts, further can need to be arranged winding mode and the coiling number of plies according to practical matter, to improve entire nothing
The scope of application of line electric energy transmission device, to be suitable for various occasions.
In another embodiment, winding section includes mounting bracket, using mounting bracket is the centre of sphere to the multiple spokes of a planar radiation
Item 102 is to form a winding section.At this point, spoke 102 still plays the distance and road that the on-demand each coil winding one of setting encloses
The style of the position and coiling forming of diameter and entire coil facilitates follow-up data to preferably be fixed on a certain position
The calculating and adjustment of processing and magnetic field strength.
Optionally, multiple spokes 102 are provided with multiple via holes along its radiation direction, so that coiling forms planar coil 103
Conducting wire pass through.
Wherein, via hole is arranged on spoke 102 makes the position of fixed coil more convenient, and prevents in use process
Since radio energy emitter receives the displacement touched and be likely to occur, sent out so as to cause calculating and regulating and controlling not accurate situation
It is raw.
Optionally, the contour direction for the planar graph that via hole is formed through spoke 102.
Further, the contour direction that via hole runs through the planar graph that spoke 102 is formed can be saved into coiling, so that around
Each circle of manufactured coil is in same plane, and fixed effect is more preferable, and prevents in use process since radio energy is sent out
Injection device receives the displacement touched and be likely to occur, and does not happen accurately so as to cause calculating and regulating and controlling.
Optionally, annular frame 104 is in circular ring shape or polygon.
Wherein, when setting that each 104 place plane of annular frame is rounded, the three-dimensional space constituted is ball, corresponding
Magnetic field transmission space be also ball, radius is greater than three-dimensional space.When each 104 place plane of annular frame is arranged in polygon
When, the three-dimensional space constituted is corresponding polyhedron, and corresponding magnetic field transmission space is also polyhedron, three-dimensional space center at this time
Distance to the center in any one face of polyhedron is respectively less than the center in magnetic field transmission space into any one face of polyhedron
The distance of the heart.It is worth noting that, the specific range of the three-dimensional space and magnetic field transmission space that constitute at this time is also possible to due to stream
The change of the size and phase of electric current through annular frame 104 and change formation three-dimensional space and magnetic field transmission space it is big
It is small, but generally speaking, three-dimensional space is less than the size in magnetic field transmission space.
Optionally, annular frame 104 be in circular ring shape, multiple spokes 102 along annular frame 104 the setting that radially extends, and
The setting of the adjacent interval of two spoke 102.
At this point, being not provided with annular peripheral frame, user can be facilitated on the basis of the present invention to this radio energy emitter
It is further increased or is reduced, be easy to use, the cost and material of production can also be saved.
Optionally, the center of annular frame 104 is provided with fixed part 105, and multiple spokes 102 are radiated to annular frame
One end of 104 center is connect with fixed part 105.
Wherein, the setting of fixed part 105 must can further fix the position of multiple spokes 102, prevent radio energy from sending out
The deformation of injection device improves the stability of structure.
Optionally, fixed part 105 is in disk form or circular ring shape.
Wherein, when fixed part 105 is in disk form or circular ring shape, production materials can be saved to the full extent, reduced
Volume, and will not influence the effect of fixed part 105 simultaneously, it is also possible that the structure of radio energy emitter is more smooth.
Optionally, one end that multiple spokes 102 are radiated to the center of annular frame 104 is connected with each other.
Wherein, multiple spokes 102 interconnect, and the relative position of multiple spokes 102 can be made more firm.
Optionally, each spoke 102 is provided with multiple cableties along its length.
Further, in one embodiment, it is provided with multiple cableties along its length for fixing in each spoke 102
Each circle of coil so that the locality specific of coil, there is the calculating using length of magnetic field, and prevents in use process due to nothing
Line electric energy transmission device receives the displacement touched and be likely to occur, and does not happen accurately so as to cause calculating and regulating and controlling.
Optionally, the material of each planar coil 103 is copper, silver, superconductor and yttrium oxide barium copper.Planar coil 103
Conducting wire is single-core line, split conductor and litz wire.
Optionally, three planar coils are formed by the one-to-one coiling on three winding sections of three conducting wires
103。
Wherein, a conducting wire can also further strengthen flat in a winding section coiling multiturn coil or lattice coil
The magnetic field strength that planar coil 103 generates expands magnetic field range.
Optionally, each planar coil 103 is planar spiral winding.
Wherein, planar spiral winding can make the space of winding section be fully used, so that the magnetic field range generated
It is bigger.
The present invention also provides a kind of transmitting terminal of wireless charging, the transmitting terminal of the wireless charging includes control circuit and wireless
Electric energy transmission device, radio energy emitter connect to the control circuit.The work of the structure of the radio energy emitter is former
Reason can refer to above-described embodiment, and details are not described herein.Naturally, since the transmitting terminal of the wireless charging of the present embodiment uses
The technical solution of above-mentioned radio energy emitter, therefore the transmitting terminal of wireless charging has above-mentioned radio energy emitter
All beneficial effects.
In one embodiment, it is calculated by control circuit and obtains the magnetic field strength of certain point and receiving end in generating device
Position, and the size of current of regulating winding and phase are maximum so as to the position for pinpointing the determining receiving end of orientation
Radio energy is transmitted, transimission power highest at this time can achieve 95%, greatly improve the biography of existing wireless charging technology
Defeated efficiency.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of radio energy emitter, which is characterized in that the radio energy emitter is sent out including at least three electric energy
Plane is penetrated, the electric energy plane of departure is formed by single planar coil, any two in at least three electric energy planes of departure
A electric energy plane of departure intersects and is arranged in three-dimensional structure.
2. radio energy emitter as described in claim 1, which is characterized in that in at least three electric energy planes of departure
Any two described in the electric energy plane of departure just intersecting setting.
3. radio energy emitter as described in claim 1, which is characterized in that each planar coil is rounded or more
The setting of side shape.
4. radio energy emitter as described in claim 1, which is characterized in that the radio energy emitter further includes
In the skeleton that three-dimensional structure is arranged, there are three the skeleton tools corresponds to the winding section being located on tri- Spatial Dimensions of A, B, C,
Three planar coil correspondences are set around on three winding sections；The material of the skeleton is resin, north material, ferrite material
Material, ceramic material and Meta Materials substance.
5. radio energy emitter as described in claim 1, which is characterized in that the winding section include annular frame, from
Multiple spokes that the annular frame is radiated to the annular frame center, by multiple spoke coiling conducting wires to be formed
The planar coil；
Alternatively,
The winding section includes mounting bracket and multiple spokes using the mounting bracket as the centre of sphere to a planar radiation, by
Multiple spoke coiling conducting wires are to form the planar coil.
6. radio energy emitter as claimed in claim 5, which is characterized in that multiple spokes are provided with along its radiation direction
Multiple via holes, so that the conducting wire that coiling forms the planar coil passes through；The contour for the planar graph that via hole is formed through spoke
Direction；The annular frame is in circular ring shape or polygon；Radially extend setting of multiple spokes along the annular frame, and phase
The spoke spacing intervals setting of neighbour two.
7. radio energy emitter as claimed in claim 5, which is characterized in that the center of the annular frame is arranged
There is fixed part, one end that multiple spokes are radiated to the center of the annular frame is connect with the fixed part；It is described
Fixed part is in disk form or circular ring shape；
Alternatively, one end that multiple spokes are radiated to the center of the annular frame is connected with each other；Each spoke
It is provided with multiple cableties along its length.
8. such as the described in any item radio energy emitters of claim 1-7, which is characterized in that one-to-one by three conducting wires
The coiling on three winding sections formed three planar coils.
9. radio energy emitter according to claims 1-8, which is characterized in that the material of each planar coil is
Copper, silver, superconductor and yttrium oxide barium copper；
The conducting wire of the planar coil is single-core line, split conductor and litz wire.
10. a kind of transmitting terminal of wireless charging, which is characterized in that including control circuit and such as claim 1-9 any one institute
The radio energy emitter stated.
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| CN201811654656.XA CN109450115A (en) | 2018-12-29 | 2018-12-29 | The transmitting terminal of radio energy emitter and wireless charging |
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| CN201811654656.XA CN109450115A (en) | 2018-12-29 | 2018-12-29 | The transmitting terminal of radio energy emitter and wireless charging |
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Application publication date: 20190308 |