CN108199436A - Wireless charging system - Google Patents
Wireless charging system Download PDFInfo
- Publication number
- CN108199436A CN108199436A CN201810035659.9A CN201810035659A CN108199436A CN 108199436 A CN108199436 A CN 108199436A CN 201810035659 A CN201810035659 A CN 201810035659A CN 108199436 A CN108199436 A CN 108199436A
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- Prior art keywords
- wireless charging
- charging system
- coil
- charging
- magnetic
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- 238000007600 charging Methods 0.000 title claims abstract description 120
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims description 14
- 239000000696 magnetic material Substances 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 210000004209 hair Anatomy 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000006698 induction Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 7
- 238000012913 prioritisation Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
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- H02J7/025—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- 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
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to charging technique field more particularly to a kind of wireless charging systems.It solves the prior art and designs the technical problems such as unreasonable.This wireless charging system includes wiring board and the charging mechanism being electrically connected with it, the charging mechanism includes at least one charging transmitter unit, the wiring board is used to control the charging transmitter unit, the charging transmitter unit includes magnetic sheet and the coil being arranged on the magnetic sheet, there is at least one protrusion in the one side of magnetic sheet, the coil is formed by an at least conducting wire around boss coiling.The advantage of the invention is that：Magnetic field intensity higher and at low cost.
Description
Technical field
The invention belongs to charging technique field more particularly to a kind of wireless charging systems.
Background technology
Wireless charging is actually the equipment to be charged using electromagnetic induction principle, similar to transformer, is being sent
Respectively there are one coils with both ends are received, and send end-coil and are connected with line power supply generation electromagnetic signal, the coil-induced transmission of receiving terminal
The electromagnetic signal at end is so as to generate electric current to electrical equipment.As shown in fig. 6, electric current, which flows through coil, can generate magnetic field, other do not lead to
The coil of electricity will generate electric current close to magnetic field, and wireless charging just applies this physical phenomenon.
In the prior art, wireless charging structure includes wiring board, magnetic sheet and coil, and antifreeze plate is set on usual wiring board
(soft magnetic materials), then coil is set on antifreeze plate, wiring board control coil generate electromagnetic field, to charging equipment (internal coil) into
Row charging.
The existing generally planar coil of coil is arranged on plate magnetic sheet, and there are following defects：
1st, coil forms that magnetic circuit is unstable causes effective magnetic circuit longer, virtually reduces charge efficiency.
2nd, effective charged area is smaller, and user needs that charging equipment placement corresponding region could be charged.
Invention content
Regarding the issue above, the present invention provides a kind of charge efficiency higher and wireless charging system at low cost
System.
In order to achieve the above objectives, present invention employs following technical proposals：This wireless charging system include wiring board and with
Its charging mechanism being electrically connected, the charging mechanism include at least one charging transmitter unit, and the wiring board is used to control
The charging transmitter unit is made, the charging transmitter unit includes magnetic sheet and the coil being arranged on the magnetic sheet, the one of magnetic sheet
There is at least one protrusion, the coil is formed and by an at least conducting wire coiling around boss on face.
The protrusion of design can effectively shorten magnetic circuit, so as to further improve charge efficiency.
Secondly, raised its can also further improve magnetic field intensity, so as to further reduce whole volume, design
Design requirement that is more reasonable and meeting current miniaturization.
Also raised design forms the structural strengthening to entire magnetic sheet, avoids buckling phenomenon.
Furthermore the protrusion of design forms the effect of several heat conduction and heat dissipation, can further improve monoblock magnetic sheet
Heat dissipation performance.
In above-mentioned wireless charging system, the magnetic sheet and protrusion are integrally formed.
It is integrally formed, which raises structural strengths and processing and manufacturing easy to produce.
In above-mentioned wireless charging system, the connection structure that projects through is fixed on magnetic sheet.
Connection structure includes grafting or bonding etc. mode.
In above-mentioned wireless charging system, the height of projection is equal or different.
The setting of height can be set according to practical requirement.
In above-mentioned wireless charging system, the projection diameter is equal or differs.
The different designs of diameter are adapted to different coils, to be suitable for various carriers to be charged.
In above-mentioned wireless charging system, the raised lateral cross section is square.
It is, of course, also possible to it is any one in hexagonal, round and diamond shape.
In above-mentioned wireless charging system, being formed together in parallel or series for multiple charging transmitter units is filled
Electric emission matrix.Wiring board can control simultaneously it is each charging transmitter unit work, can also independent control any one charging
The work of transmitter unit.
In above-mentioned wireless charging system, the magnetic sheet that difference charging transmitter unit uses is integrally formed.So as to subtract
Few leakage field, further improves magnetic field intensity.
In above-mentioned wireless charging system, the magnetic sheet and protrusion are made of soft magnetic materials.Soft magnetic materials takes
Material is convenient and processes simpler.Preferably, soft magnetic materials includes but not limited to Ferrite Material, modeling magnetic material and iron powder materials
Deng.
In above-mentioned wireless charging system, when which sets multiple charging transmitter units, formed continuous
Charged area.Since multiple charging transmitter units form trickle charge region, so as to considerably increase effective charged area.
In above-mentioned wireless charging system, position detection unit is further included, the position detection unit is filled for detecting
Location information is simultaneously sent to wiring board by the band of position of electric equipment, and the wiring board controls charging equipment position according to location information
Put the coil working in region and the coil outside the band of position does not work.Due to installation position detection unit, so as to select
Corresponding coil working simultaneously closes other coils, it is not necessary to consume useless energy.
In above-mentioned wireless charging system, when which sets multiple charhing units, between charhing unit
And then formation closed magnetic circuit opposite in the magnetic direction for being spaced apart and being generated between the charhing unit of part.
It just can form the spatial distribution in magnetic field to the structure only with a small amount of several coils, effectively reduce point of coil
Cloth quantity without being respectively arranged coil in each position, effectively reduces manufacture cost.
Alternatively scheme, in above-mentioned wireless charging system, the multiple charging hairs of wireless charging system setting
When penetrating unit, the magnetic direction that closely setting and each charhing unit generate between the transmitter unit that charges is identical and then forms folk prescription
To emission matrix.
In above-mentioned wireless charging system, the coil panel is around the cyclic annular square structure of formation.The design of the structure,
Existing space resources can be made full use of, can in a limited space it is interior provide bigger magnetic field.
Rectangular structure can be fully solved the gap formed between two adjacent coils of circular coil, space point
Cloth is more closely knit and reasonable.
Compared with prior art, it is the advantages of this wireless charging system：
1st, the protrusion of design, can effectively shorten magnetic circuit, so as to further improve charge efficiency.
Secondly, raised its also further improves magnetic field intensity, and so as to further reduce whole volume, design is more
Design requirement that is reasonable and meeting current miniaturization.
2nd, it is simple in structure and cascading expand effective charged area.
Description of the drawings
Fig. 1 is structure diagram provided by the invention.
Fig. 2 is another viewing angle constructions schematic diagram provided by the invention.
Fig. 3 is two structure diagram of embodiment provided by the invention.
Fig. 4 is magnetic direction inverse state schematic diagram provided by the invention.
Fig. 5 is example IV structure diagram provided by the invention.
Fig. 6 is prior art construction schematic diagram provided by the invention.
Fig. 7 is position detection unit block diagram provided by the invention.
In figure, wiring board 1, magnetic sheet 2, coil 3, protrusion 4.
Specific embodiment
It is the specific embodiment of invention and with reference to attached drawing below, technical scheme of the present invention is further described, but
The present invention is not limited to these embodiments.
Embodiment one
As shown in Figs. 1-2, this wireless charging system, the wireless charging system is in the platy structure of hardness or in soft
Sheet mat structure.
Such as wireless charging battery plate or mouse pad etc..
This wireless charging system includes wiring board and the charging mechanism being electrically connected with it, and the charging mechanism is included at least
The charging transmitter unit of one, for wiring board for controlling the charging transmitter unit, the charging transmitter unit includes 2 He of magnetic sheet
The coil 3 being arranged on the magnetic sheet 2 has an at least protrusion 4 in the one side of magnetic sheet 1, and protrusion 4 is in vertical distribution with magnetic sheet 2, this
Structure which raises structural strength, meanwhile, the protrusion of design can effectively shorten magnetic circuit, so as to further improve charging
Efficiency.Secondly, raised its can also further improve magnetic field intensity, and so as to further reduce whole volume, design is more
Adduction is managed and meets the design requirement of current miniaturization.
The coil 3 is formed and by an at least conducting wire coiling around boss.1 control coil of wiring board generates
Magnetic field.
The thickness of coil 3 is less than the height of protrusion.
The magnetic sheet 2 and protrusion 4 of the present embodiment are integrally formed and magnetic sheet 2 is made with protrusion 4 of soft magnetic materials.
Prioritization scheme, 4 height of protrusion of the present embodiment are equal or different.
Prioritization scheme, 4 diameter of protrusion of the present embodiment is equal or differs.
Prioritization scheme, 4 lateral cross section of protrusion of the present embodiment are square.
Prioritization scheme, 3 winding escalator of coil of the present embodiment circlewise square structure.
Prioritization scheme, multiple charging transmitter units of the present embodiment form charging transmitting square together in parallel or series
Battle array.Due to forming the emission matrix that charges, so as to considerably increase effective chargeable range.
Prioritization scheme, the magnetic sheet 2 that difference charging transmitter unit uses are integrally formed.It is integrally formed it and not only increases structure
Intensity further improves production efficiency, but also can reduce leakage field, further improves magnetic field intensity.
When the wireless charging system sets multiple charging transmitter units, trickle charge region is formed.So as to expand charging
Region can simultaneously charge to multiple charging equipments.
Prioritization scheme, this system further include position detection unit, and the position detection unit is used to detect charging equipment
Location information is simultaneously sent to wiring board 1 by the band of position, and the wiring board 1 controls the charging equipment band of position according to location information
Interior coil 3 works and the coil 3 outside the band of position does not work.
In a preferred embodiment, position detection unit includes sense film, which is integrally disposed upon charger
On structure, and the coil for coating each charging transmitter unit forms same level.Capactive film or resistive film may be used in sense film,
Its principle is similar to the touch sensible film for being widely used in smart machine in the prior art, when charging equipment is positioned on sense film
When, due to the difference of placement location, sense film can generate different inductive signals.Wiring board just can be really by detecting inductive signal
Determine charging equipment whether to place on sense film and the specific band of position, so as to accurately control corresponding coil working,
And close other coils.It, can be by the way that multiple charging transmitter units be set to expand charged area, again using above-mentioned technological means
It can achieve the purpose that energy saving.
In another preferred embodiment, as shown in fig. 7, position detection unit further comprises induction module, electric current
Detection module and the induction coil being arranged in each charging transmitter unit, wherein, induction module is connected with wiring board, sense
Module is answered for detecting whether charging equipment is placed in charged area, is produced when detecting that charging equipment is placed on charged area
Raw first inductive signal, wiring board open work simultaneously according to all charging transmitter units of the first actuated signal control；Electric current is examined
It surveys module with induction coil and wiring board to be connected, induction coil is used to generate sensing electric current, current detecting in variation magnetic field
Module is used to detect the sensing electric current of induction coil generation and send to wiring board, and wiring board is generated according to each induction coil
Sensing curent change determines the specific band of position of charging equipment, and corresponding coil is controlled to work on this, simultaneously closes off
Other coils.It, can be by the way that multiple charging transmitter units be set to expand charged area, and can reach using above-mentioned technological means
Energy saving purpose.
Above-mentioned technological means principle is as follows, determines the charging equipment band of position using two-step method, first determines whether charging equipment
Whether it is placed on charging mechanism, only determines that charging equipment is placed on charging mechanism and just open charging mechanism.When coil is opened
When opening work, under the pumping signal of same intensity and frequency, the magnetic field generated is certain, and therefore, induction coil is at this
The sensing electric current generated in magnetic field is also certain, and the sensing current value of charging mechanism light condition is prestored in assist side.
When placing charging equipment on it, due to charge coil built-in in charging equipment, the presence of the charge coil can cause accordingly
The changes of magnetic field in region, the sensing electric current that corresponding induction coil generates can also change, can be determined that and fill by aforesaid way therewith
The band of position of electric equipment, that is, the region where the induction coil of sensing curent change is the specific position of charging equipment
Region., whereas if the sensing electric current that each coil generates is unchanged, then the equipment that explanation is placed on charging unit is not supported
Wireless charging function closes coil.
Further, induction module uses weighing sensor or pressure sensor, can be tightly disposed in charging mechanism
It is beneath, when charging equipment is placed on the top of charging mechanism, gravimetric value or pressure value change and thus generate first
Inductive signal.
Further, current detection module can be wholely set in assist side, corresponding for the setting of each induction coil
Current detection circuit or multiple induction coils pass through selection circuit be multiplexed a current detection circuit.
Further, induction coil is formed by an at least conducting wire around boss coiling.Due to convex design, increase
Big sensing electric current, easily realizes current detecting, while can also reduce the size of induction coil.
As shown in figure 4, when the wireless charging system sets multiple charhing units, in being spaced apart and portion between charhing unit
Divide the magnetic direction generated between charhing unit opposite and then form closed magnetic circuit.
The design of the structure, can be only with a small amount of several coils with regard to that can form the spatial distribution in magnetic field, that is, multiple coils
Between generate the magnetic field of opposed polarity respectively, can form closed magnetic circuit between coil opposite polarity in this way.Effectively reduce line
The distributed quantity of circle without being respectively arranged coil in each position, effectively reduces manufacture cost.
One side of the coil 3 far from magnetic sheet 2 is located in same horizontal plane.
The thickness of coil 3 is equal to the height of protrusion 4.
Embodiment two
As shown in figure 3, the present embodiment is essentially identical with the structure and principle of embodiment one, Gu therefore not to repeat here, without
The same place is：
When the wireless charging system sets multiple charging transmitter units, closely set between the transmitter unit that charges and each fill
The magnetic direction that electric unit generates is identical and then forms one direction emission matrix.More there is choosing, coil panel is cyclic annular rectangular around being formed
Structure.The design of the structure can make full use of existing space resources, can in a limited space it is interior provide bigger magnetic
.
Rectangular structure can be fully solved the gap formed between two adjacent coils of circular coil, space point
Cloth is more closely knit and reasonable.
Embodiment three
The present embodiment is essentially identical with the structure and principle of embodiment one, though therefore not to repeat here, different place
It is：
Protrusion 4 is fixed on by connection structure on magnetic sheet 2.
Example IV
As shown in figure 5, the present embodiment is essentially identical with the structure and principle of embodiment one, Gu therefore not to repeat here, without
The same place is：
Coil 3 is circle and array distribution.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or additions to described specific embodiment or replace in a similar way
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. wireless charging system, the charging mechanism being electrically connected including wiring board and with it, the charging mechanism include at least one
A charging transmitter unit, for the wiring board for controlling the charging transmitter unit, the charging transmitter unit includes magnetic sheet
(2) and the coil (3) that is arranged on the magnetic sheet (2), which is characterized in that have in the one side of the magnetic sheet (1) at least one convex
It rises (4), the coil (3) is formed and by an at least conducting wire coiling around boss.
2. wireless charging system according to claim 1, which is characterized in that the magnetic sheet (2) and raised (4) one into
Type or the protrusion (4) are fixed on by connection structure on magnetic sheet (2).
3. wireless charging system according to claim 1 or 2, which is characterized in that it is multiple charging transmitter units parallel connection or
It is cascaded to form charging emission matrix.
4. wireless charging system according to claim 1 or 2, which is characterized in that the magnetic that difference charging transmitter unit uses
Piece (2) is integrally formed.
5. wireless charging system according to claim 1 or 2, which is characterized in that the magnetic sheet (2) and raised (4) are adopted
It is made of soft magnetic materials.
6. wireless charging system according to claim 1 or 2, which is characterized in that wireless charging system setting is multiple to fill
During electric transmitter unit, trickle charge region is formed.
7. wireless charging system according to claim 6, which is characterized in that further include position detection unit, the position
Detection unit is used to detect the band of position of charging equipment and location information is sent to wiring board (1), wiring board (1) root
According to coil (3) work in the location information control charging equipment band of position, the coil (3) outside the band of position does not work.
8. wireless charging system according to claim 6, which is characterized in that the multiple chargings of wireless charging system setting are single
When first, opposite in the magnetic direction for being spaced apart and being generated between the charhing unit of part between charhing unit and then formation closed magnetic
Road.
9. wireless charging system according to claim 6, which is characterized in that the multiple charging hairs of wireless charging system setting
When penetrating unit, the magnetic direction that closely setting and each charhing unit generate between the transmitter unit that charges is identical and then forms folk prescription
To emission matrix.
10. wireless charging system according to claim 9, which is characterized in that described coil (3) winding escalator is circlewise square
Shape structure；Described protrusion (4) lateral cross section is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035659.9A CN108199436A (en) | 2018-01-15 | 2018-01-15 | Wireless charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035659.9A CN108199436A (en) | 2018-01-15 | 2018-01-15 | Wireless charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108199436A true CN108199436A (en) | 2018-06-22 |
Family
ID=62589500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810035659.9A Pending CN108199436A (en) | 2018-01-15 | 2018-01-15 | Wireless charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108199436A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008002164A1 (en) * | 2006-06-28 | 2008-01-03 | Piotr Musial | A method and system for wireless transfer of electrical power |
| WO2010118191A1 (en) * | 2009-04-08 | 2010-10-14 | Access Business Group International Llc | Selectable coil array |
| WO2012039245A1 (en) * | 2010-09-24 | 2012-03-29 | パナソニック株式会社 | Coil module for contactless electric power transfer, and battery pack and charging device provided with same |
| CN102946154A (en) * | 2012-11-17 | 2013-02-27 | 福州大学 | Wireless electric energy transmission magnetic coupling structure and circuit of wireless electric energy transmission magnetic coupling structure |
| CN103051069A (en) * | 2011-10-14 | 2013-04-17 | Lg伊诺特有限公司 | Wireless power transmitter |
| CN103931075A (en) * | 2011-11-15 | 2014-07-16 | 高通股份有限公司 | Systems and methods for induction charging with a closed magnetic loop |
| EP2824793A1 (en) * | 2012-02-27 | 2015-01-14 | Hitachi Power Solutions Co., Ltd. | Wireless power supply apparatus |
| CN104979913A (en) * | 2014-04-03 | 2015-10-14 | Lg伊诺特有限公司 | Wireless power transmitting apparatus |
| US20160143194A1 (en) * | 2013-07-02 | 2016-05-19 | Yazaki Corporation | Coil unit |
-
2018
- 2018-01-15 CN CN201810035659.9A patent/CN108199436A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008002164A1 (en) * | 2006-06-28 | 2008-01-03 | Piotr Musial | A method and system for wireless transfer of electrical power |
| WO2010118191A1 (en) * | 2009-04-08 | 2010-10-14 | Access Business Group International Llc | Selectable coil array |
| WO2012039245A1 (en) * | 2010-09-24 | 2012-03-29 | パナソニック株式会社 | Coil module for contactless electric power transfer, and battery pack and charging device provided with same |
| CN103051069A (en) * | 2011-10-14 | 2013-04-17 | Lg伊诺特有限公司 | Wireless power transmitter |
| CN103931075A (en) * | 2011-11-15 | 2014-07-16 | 高通股份有限公司 | Systems and methods for induction charging with a closed magnetic loop |
| EP2824793A1 (en) * | 2012-02-27 | 2015-01-14 | Hitachi Power Solutions Co., Ltd. | Wireless power supply apparatus |
| CN102946154A (en) * | 2012-11-17 | 2013-02-27 | 福州大学 | Wireless electric energy transmission magnetic coupling structure and circuit of wireless electric energy transmission magnetic coupling structure |
| US20160143194A1 (en) * | 2013-07-02 | 2016-05-19 | Yazaki Corporation | Coil unit |
| CN104979913A (en) * | 2014-04-03 | 2015-10-14 | Lg伊诺特有限公司 | Wireless power transmitting apparatus |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |
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