CN106300574A - Wireless charging device and system - Google Patents
Wireless charging device and system Download PDFInfo
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- CN106300574A CN106300574A CN201510295635.3A CN201510295635A CN106300574A CN 106300574 A CN106300574 A CN 106300574A CN 201510295635 A CN201510295635 A CN 201510295635A CN 106300574 A CN106300574 A CN 106300574A
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Abstract
The present invention is about a kind of wireless charging device, and for one or more current-collecting devices are carried out wireless charging, it includes that housing, least one set launch film coil element and shielding element.Housing includes body, and it has can hold accommodation space and the opening receiving electric installation.Launch film coil element be arranged in body and launch the electromagnetic wave of a characteristic frequency or multiple different frequency so that these one or more current-collecting devices to carry out wireless charging, and include that at least one antenna, to receive AC signal, launches this electromagnetic wave.Shielding element is attached at the outer surface of body, or is arranged in this body and covers the antenna launching film coil element at least in part, to stop that electromagnetic wave outside dissipates, and concentrates electromagnetic wave energy in housing, increases charging efficiency.Can simultaneously or timesharing ground and the most simultaneously carry out wireless charging, simple in construction in the accommodation space of this wireless charging device, it is possible to decrease cost, and the convenience of versatility and use can be increased.
Description
Technical field
The present invention about a kind of charging device and system, particularly relate to one can suppress electromagnetic wave divergent and
Electromagnetic wave can be concentrated so that one or more current-collecting devices to carry out the wireless charging device of contactless charging
And wireless charging system.
Background technology
Various portable electronic devices such as mobile phone, panel computer are widely used in daily life,
For providing portable electronic devices running required electric energy, with charger, its internal cell must be charged.By
It is applicable to various use environment in wireless charging device and will not be limited by power line, can be easy to make
User is charged application, and therefore wireless charging device is the most gradually developed replacing wired charger
Use.
Wireless charging also known as induction charging or contactless charging, its wirelessly by energy from confession
Electric installation provides and gives current-collecting device.At present, wireless charging technology is summarized and is divided into three big camps, wireless charging
Electricity Federation alliance WPC (Wireless Power Consortium) (QI), electric utility alliance PMA (Power
Matters Alliance), radio source alliance A4WP (Alliance For Wireless Power), its
In with WPC, A4WP alliance as main flow, the wireless charging mode used then has magnetic induction (low frequency)
Technology difference with magnetic resonance (high frequency).Magnetic induction way is simply possible to use in short-distance transmission and current-collecting device needs
Para-position is attached at electric supply installation, and its energy conversion efficiency is higher, is but difficult to multiple current-collecting device same
Time be charged.Magnetic resonance is then to allow transmitting terminal and receiving terminal reach specific resonant frequency, can allow both sides
Form magnetic resonance phenomenon, reached the purpose of energy transmission by electromagnetic wave.Compared to magnetic induction way,
Magnetic resonance mode can realize longer-distance charging.
Fig. 1 shows that existing wireless charging device carries out the schematic diagram of wireless charging to current-collecting device.Such as Fig. 1
Shown in, wireless charging device 11 wirelessly transmits energy and gives current-collecting device 12, it is however generally that,
The coil part of wireless charging device 11 generally uses multicore copper coil and is arranged at firmly by copper coil
On matter ferrimagnetic oxide substrate and be assemblied in plate shape housing, and current-collecting device 12 is only capable of in wireless charging
It is charged outside the one of electric installation 11.But, the coil part institute of existing wireless charging device 11
The electromagnetic wave launched can be dissipated into surrounding, so will result in user by the possibility of hurt of electromagnetic wave, and
The charge efficiency of wireless charging device 11 cannot effectively promote.Additionally, wireless charging device 11 is only capable of
In a specific distance range of this side, current-collecting device 12 is charged, for avoiding current-collecting device 12 to put
Being placed in the distance and scope that cannot effectively charge, wireless charging device 11 need to increase sensing device prompting to be made
User or utilize the auxiliary positioning current-collecting device 12 of detent mechanism, so will increase wireless charging device 11
Manufacturing cost, and current-collecting device 12 at random cannot be placed and can ensure that wireless charging by user
Carry out, so also reduce the convenience of use.
Additionally, existing wireless charging device is different due to the technology used, the coupling of its coil part
Frequency and transmitting terminal circuit design are the most different, cause the incompatible of product each specification and cannot share
Element.Due to incompatible factor, wireless charging device cannot use identical coil part and circuit
Element so that various portable electronic devices need to use the various self-defined wireless charging device of collocation,
So reduce advantage and the versatility of wireless charging device, and cannot be with single wireless charging device pair
The current-collecting device of multiple employing different radio charging techniques carries out wireless charging.
Summary of the invention
It is an object of the invention to provide a kind of wireless charging device, it can suppress electromagnetic wave divergent with fall
The injury to user of the low electromagnetic wave, and electromagnetic wave can be concentrated with to one or more to a charged area
Current-collecting device carries out contactless charging, and strengthening electromagnetic wave amount is to promote charging efficiency.
Another object of the present invention is to provide a kind of electromagnetic wave launching more than one different frequencies
Wireless charging device, it has an accommodation space and receives same frequency or different frequency for one or more
The current-collecting device of the electromagnetic wave of rate is placed, and can ensure that these one or more current-collecting devices are in this accommodating sky
In can simultaneously or timesharing ground and effectively carry out wireless charging, its simple in construction, it is possible to decrease cost,
And the convenience of versatility and use can be increased.
Another object of the present invention is to provide a kind of wireless charging system, it includes aforementioned wireless charging
Device and one or more current-collecting device, its adaptability or optionally switching use magnetic resonance coupling
Close or magnetic induction way realizes wireless charging, and can reach aforementioned effect.
For reaching above-mentioned purpose, a better embodiment of the present invention is a kind of wireless charging device of offer,
For one or more current-collecting devices are carried out wireless charging, this wireless charging device includes housing, extremely
Launch film coil element and a shielding element for few one group.Housing includes body, and this body has accommodating
Space and opening, this accommodation space holds receives one or more current-collecting devices.Least one set launches thin film
Coil part is arranged in body and for launching a characteristic frequency or the electromagnetic wave of many different frequencies, its
In each group launch film coil element include that at least one antenna, to receive an AC signal, launches this electricity
Magnetic wave.Shielding element is attached at the outer surface of body, or is arranged in body and covers at least in part
Launch the antenna of film coil element, for stopping that electromagnetic wave outside dissipates.
For reaching above-mentioned purpose, another better embodiment of the present invention is a kind of wireless charging system of offer,
It includes wireless charging device and at least one current-collecting device.Wireless charging device includes housing, extremely
Launch film coil element and a shielding element for few one group.Housing includes body, and this body has appearance
Between being empty and opening.Least one set is launched film coil element and is arranged in body, and is used for launching
One characteristic frequency or the electromagnetic wave of many different frequencies, each of which group launch film coil element include to
A few antenna, to receive an AC signal, launches this electromagnetic wave.Shielding element is attached at the appearance of body
Face, or be arranged in body and cover the antenna launching film coil element at least in part, for
Stop that this electromagnetic wave outside dissipates.At least one current-collecting device holds the accommodation space closing at housing, and bag
Include a reception film coil element, this reception film coil element and the transmitting thin film of wireless charging device
Coil part couples, to receive the energy that wireless charging device is transmitted.
The present invention provides a kind of wireless charging device and system, can launch a characteristic frequency or many different frequencies
The electromagnetic wave of rate carries out wireless charging to one or more current-collecting devices, and those electromagnetic waves can be suppressed to send out
Dissipate to reduce the electromagnetic wave injury to user, and electromagnetic wave can be concentrated with to one to a charged area
Or multiple current-collecting device carries out contactless charging, strengthening electromagnetic wave amount is to promote charge efficiency.Can be same
Time or timesharing ground and the most simultaneously carry out wireless charging, its simple in construction, it is possible to decrease cost, and can
Increase versatility and the convenience of use.
Accompanying drawing explanation
Fig. 1 is to show the schematic diagram that existing wireless charging device carries out wireless charging to current-collecting device.
Fig. 2 A is the configuration diagram of the wireless charging system of the present invention.
Fig. 2 B is the configuration diagram of another change case of the wireless charging system of the present invention.
Fig. 3 is the structural representation of the first embodiment of the wireless charging device of the present invention.
Fig. 4 A is that wireless charging device shown in Fig. 3 is in the profile in its AA cross section.
Fig. 4 B is the graph of a relation launching film coil element and shielding element of display Fig. 4 A.
Fig. 5 A is that another change case of wireless charging device of the present invention is in the sectional view of its sidewall.
Fig. 5 B is the graph of a relation launching film coil element and shielding element of display Fig. 5 A.
Fig. 6 A is that another change case of wireless charging device of the present invention is in the sectional view of its sidewall.
Fig. 6 B is the graph of a relation launching film coil element and shielding element of display Fig. 6 A.
Fig. 7 is the structural representation of a demonstration example of shielding element shown in Fig. 3.
Fig. 8 is the circuit block diagram of the transmitter module of wireless charging device shown in Fig. 3.
Fig. 9 is the circuit block diagram of the receiver module of the current-collecting device shown in Fig. 2.
Figure 10 is the structural representation of a demonstration example of the current-collecting device of display Fig. 2.
Figure 11 is the circuit box schematic diagram of a change case of the wireless charging system of the present invention.
Figure 12 is the structural representation of the second embodiment of the wireless charging device of the present invention.
Figure 13 is the structural representation of the 3rd embodiment of the wireless charging device of the present invention.
Figure 14 is the structural representation of the 4th embodiment of the wireless charging device of the present invention.
Figure 15 is the structural representation of the 5th embodiment of the wireless charging device of the present invention.
Description of reference numerals:
11: wireless charging system
12: current-collecting device
2: wireless charging system
3,3a, 3b, 3c, 3d: wireless charging device
4,4 ': current-collecting device
5: power supply
30: housing
31,31a, 31b: launch film coil element
32: transmitter module
33: controller
34: shielding element
35: protective layer
36: the first switching circuits
37: the second switching circuits
301: body
302: lid
303: accommodation space
304: opening
305: sidewall
306: diapire
311: flexible base board
311a: the first
311b: the second
312: starting of oscillation antenna
313: resonant antenna
313a: the first end
313b: the second end
316: capacitor
321: power-switching circuit
322: agitator
323: power amplifier
324: filter circuit
341: the first shielding parts
342: secondary shielding portion
343: grid cell
344,345: the micro-line of metal
4a, 4a ': wireless charging receptor
4b, 4b ': load
41,41 ': receive film coil element
42,42 ': receiver module
43: adapter
421: filter circuit
422: rectification circuit
423: mu balanced circuit
424: DC amplification circuit
C11, C12: the first capacitor
C21, C22: the second capacitor
S11, S12: the first switch element
S21, S22: second switch element
L: central shaft
AA: cross section
B: radially
D: spacing
Detailed description of the invention
Some exemplary embodiments embodying feature of present invention and advantage will be chatted in the explanation of back segment in detail
State.It should be understood that the present invention can have various changes in different modes, its all without departing from
The scope of the present invention, and explanation therein and graphic being illustrated as in itself be used, not for limit
The present invention processed.
Fig. 2 A is the configuration diagram of the wireless charging system of the present invention, and Fig. 2 B is the wireless of the present invention
The configuration diagram of another change case of charging system, Fig. 3 is the knot of the wireless charging device of the present invention
Structure schematic diagram, Fig. 4 A is that wireless charging device shown in Fig. 3 is in the profile in its AA cross section, Fig. 4 B
For the graph of a relation launching film coil element and shielding element of display Fig. 4 A, Fig. 7 is Fig. 3 institute display screen
Cover the structural representation of a demonstration example of element, and Fig. 8 is sending out of wireless charging device shown in Fig. 3
Penetrate the circuit block diagram of module.As Fig. 2 A, 2B, 3,4A, 4B, shown in 7 and 8, the present invention's
Wireless charging system 2 includes wireless charging device 3 and at least one current-collecting device 4, wherein wireless charging
Electric installation 3 is connected to a power supply 5 (such as but not limited to electric main, or external or built-in battery
Unit), and can launch specific (single) frequency or wideband (multiple different frequency) electromagnetic wave (such as but
It is not limited to the frequency range electromagnetic wave between 60Hz to 300GHz), to utilize magnetic resonance (high frequency) or magnetic
Current-collecting device 4 (the example of sensing (low frequency) mode frequency electromagnetic identical or different to one or more receptions
Such as, but not limited to, mobile phone, panel computer, electric equipment products) realize wireless charging.
The wireless charging device 3 of the present invention include housing 30, least one set launch film coil element 31,
Least one set transmitter module 32 and shielding element 34, its middle shell 30 includes body 301 and lid
Body 302.Body 301 has accommodation space 303, opening 304, sidewall 305 and diapire 306,
Lid 302 is for covering the opening 304 of body 301.Accommodation space 303 framework of body 301 is one
Charged area, and the one or more current-collecting devices 4 of receipts can be held to carry out wireless charging.Each group of transmitting
In film coil element 31 is arranged at the sidewall 305 of body 301 or be arranged at sidewall 305 and diapire 306
In, and it is electrically connected at corresponding transmitter module 32, launching film coil element 31 framework is wireless charging
The transmitting terminal of electric installation 3.Transmitter module 32 is electrically connected to the transmitting film coil of power supply 5 and correspondence
Between element 31, to receive electric energy that power supply 5 provided and to produce an AC signal and send out to corresponding
Penetrate film coil element 31.In some embodiments, screening arrangement 34 is attached at body at least in part
The outer surface of the sidewall 305 of 301 or be attached at the outer surface of sidewall 305 and diapire 306, and at least portion
Ground cladding is divided to launch film coil element 31, thereby to stop the electromagnetic wave of transmitting film coil element 31
Outwards dissipate, and make electromagnetic wave can concentrate the accommodation space 303 towards body 301, so that appearance is closed at appearance
Between being empty, the one or more current-collecting devices 4 in 303 carry out wireless charging.In some embodiments,
Wireless charging device 3 also includes protective layer 35, and this protective layer 35 is attached at shielding element at least in part
The outer surface of 34, with guard shield element 34.In some embodiments, protective layer 35 can be by protecting
Coating is constituted, and it is selected from epoxy resin, acryl silica gel, polyurethane adhesive, ethylene-vinyl acetate
Combined polymerization system glue, polyamide-based glue, rubber series glue, polyolefin glue, moisture-curable polyurethane adhesive
Or silica gel, and it is not limited.
In some embodiments, as shown in Figure 2 A, wireless charging device 3 includes that is launched a thin film wire
Coil element 31 and one group of transmitter module 32, thereby wireless charging device 3 can launch a characteristic frequency
Electromagnetic wave is to carry out wireless charging to current-collecting device 4.In other embodiments, as shown in Figure 2 B,
Wireless charging device 3 includes organizing transmitting film coil element 31 and many group transmitter modules 32 more, wherein
Launch film coil element 31 for each group and be electrically connected at the transmitter module 32 of a correspondence, thereby wireless charging
Electric installation 3 can launch a characteristic frequency or the electromagnetic wave of many different frequencies, with simultaneously or timesharing to one
Individual or multiple current-collecting devices 4 receiving same frequency or different frequency electromagnetic wave carry out wireless charging.
In some embodiments, launch film coil element 31 for each group and be flexible and include flexible base board
311, starting of oscillation antenna 312 and resonant antenna 313, wherein starting of oscillation antenna 312 and resonant antenna 313
Being arranged at two opposite faces of flexible base board 311, in detail, flexible base board 311 has first 311a
Relative with second 311b, this first 311a and second 311b, and starting of oscillation antenna 312 is with humorous
The antenna 313 that shakes is respectively arranged at first 311a and second 311b of flexible base board 311.Resonance sky
The two ends (the i.e. first end 313a and the second end 313b) of line 313 connect one or more capacitor 316,
And the two ends of starting of oscillation antenna 312 are connected to transmitter module 32.When wireless charging device 3 is through being transmitted from
Module 32 pass to an AC signal in launch film coil element 31 starting of oscillation antenna 312 time, starting of oscillation
Antenna 312 couples with resonant antenna 313, by the electromagnetic wave of characteristic frequency that emits with by electricity
The reception film coil element 41 of the wireless charging receptor 4a of device 4 produces coupling, and is received
Module 42 conversion electric power exports to loading 4b, it is achieved current-collecting device 4 is carried out wireless charging.
In the present embodiment, by the central axis L of body 301 radially to the outer surface of sidewall 305
Direction (such as label B direction), wireless charging device 3 sequentially includes resonant antenna 313, flexible
Substrate 311, starting of oscillation antenna 312, shielding element 34 and protective layer 35.In other words, thin film is launched
Coil part 31 is arranged in sidewall 305, and resonant antenna 313 is adjacent to accommodation space 303, soft
Property substrate 311 is between resonant antenna 313 and starting of oscillation antenna 312, and starting of oscillation antenna 312 is adjacent to
The outer surface of sidewall 305 and being positioned between resonant antenna 313 and shielding element 34.Shielding element 34
It is attached at the outer surface of sidewall 305 and covers the resonance sky launching film coil element 31 at least in part
Line 313 and starting of oscillation antenna 312.In the present embodiment, as it is shown in fig. 7, shielding element 34 is gold
Belong to grid (Metal mesh) film, be applicable to stop that the electromagnetic wave outside of upper frequency dissipates, such as, hinder
It is more than gear tool the first characteristic frequency that the electromagnetic wave outside of (such as more than 6MHz) dissipates.This metal grill film
Be made up of metal or metallic composite, wherein this metal or metallic composite selected from copper, gold, silver,
Aluminum, tungsten, chromium, titanium, indium, stannum, nickel, ferrum or its at least the two above metal composite formed,
But it is not limited.Metal grill film has lattice, and this lattice includes multiple grid cell
343, the two micro-line of metal 344,345 tools that are adjacent but that do not connect of each of which grid cell 343
Having spacing d, this spacing d is less than the wavelength launching the sent electromagnetic wave of film coil unit 31.In
In other embodiments, shielding element 34 is magnetic conductive film, and this magnetic conductive film is made up of soft magnetic materials, such as
But it is not limited to ferrite (ferrite), zinc-nickel ferrite (NiZn), zinc-manganese ferrite (MgZn) or ferrum sial
Alloy is constituted with binding material, is applicable to stop that the electromagnetic wave outside of lower frequency dissipates, such as, hinders
Gear between the first characteristic frequency and the second characteristic frequency (such as between 60Hz to 20MHz)
Electromagnetic wave outside dissipate.In other embodiments, shielding element 34 combines metal grill for one
Film and the laminated film of magnetic conductive film, can stop that all frequency ranges are (such as between 60Hz to 300GHz
Between) electromagnetic wave outside dissipate.
In some embodiments, shielding element 34 includes the first shielding part 341 and secondary shielding portion
342, wherein the first shielding part 341 be attached at body 301 outer surface and cover launch film coil unit
Part 31, secondary shielding portion 342 is attached at the outer surface of lid 302, to stop that electromagnetic wave is from lid 302
Outwards dissipate.
In some embodiments, first 311a and second 311b of flexible base board 311 wrap respectively
Include a tack coat (not shown), and starting of oscillation antenna 312 is respectively conductive material with resonant antenna 313 and leads to
Cross its tack coat and be arranged at first 311a and second 311b of flexible base board 311.Tack coat can be
One have photocuring (light curing), heat cure (thermal curing) or other there is solidification
The binding material of characteristic, wherein other binding materials with curing characteristics can be but be not limited to ethylene-vinegar
Vinyl acetate combined polymerization system glue, polyamide-based glue, rubber series glue, polyolefin glue or moisture-curable
Polyurethane adhesive etc..In some embodiments, tack coat, in addition to comprising above-mentioned solidification binding material, also may be used
Being mixed with magnetic material, wherein magnetic material can be such as but not limited to being blended in solidification binding material
Ferromagnetic powder.In other embodiments, flexible base board 311 can be replaced by aforesaid tack coat.
In some embodiments, the material of flexible base board 311 is selected from polyethylene terephthalate
(Polyethylene terephthalate, PET), thin glass, PEN
(Polyethylennaphthalat, PEN), polyethers (Polyethersulfone, PES), polyacids methyl ester
(Polymethylmethacrylat, PMMA), polyimides (Polyimide, PI) or polycarbonate
(Polycarbonate, PC), and be not limited.In some embodiments, starting of oscillation antenna 312 is with humorous
The antenna 313 that shakes can be but be not limited to single loop or multiple loop antenna, and the shape of its loop includes and not
It is limited to circle, ellipse or rectangle.Starting of oscillation antenna 312 and resonant antenna 313 are respectively by conductive material
Making, wherein this conductive material is selected from silver (Ag), copper (Cu), gold (Au), aluminum (Al), stannum (Sn)
Or Graphene, and it is not limited.
Fig. 5 A is that another change case of wireless charging device of the present invention is in the sectional view of its sidewall, Yi Jitu
5B shows the graph of a relation launching film coil element and shielding element of Fig. 5 A.In some embodiments,
As shown in Fig. 5 A and 5B, launch film coil element 31 except including flexible base board 311, starting of oscillation antenna
312 and resonant antenna 313 outside, may also include the first protective layer 314 and the second protective layer 315, its
In the first protective layer 314 and the second protective layer 315 be covered each by starting of oscillation antenna 312 and resonant antenna 313,
Namely the first protective layer 314 and the second protective layer 315 lay respectively at starting of oscillation antenna 312 and resonance sky
The outside of line 313.In this embodiment, shielding element 35 may be disposed in body 30 and is positioned at side
In wall 305, and it is positioned at starting of oscillation antenna 312 and the first protective layer 314 launching film coil element 31
Between.Alternatively, as shown in Fig. 6 A and 6B, shielding element 35 may also set up in body 30
And be positioned at sidewall 305, and it is positioned at outside the first protective layer 314 launching film coil element 31
Side.In this embodiment, the material of the first protective layer 314 and the second protective layer 315 can be with aforesaid
Protective layer 35 is identical, repeats no more in this.
In some embodiments, wireless charging device 3 includes one or more groups transmitter module 32, wherein
Each group of transmitter module 32 is electrically connected at the transmitting film coil element 31 of correspondence, and includes that power supply turns
Change circuit 321, agitator 322, power amplifier 323 and filter circuit 324.Power-switching circuit
321 are electrically connected to power supply 5 and are connected to agitator 322 and power amplifier 323, power-switching circuit
The electric energy that power supply 5 is provided is changed and is powered and gives agitator 322 and power amplifier 323 by 321.In
In some embodiments, power-switching circuit 321 includes DC-to-DC converter, AC-AC converter
And/or DC-AC converter.Agitator 322 adjustably exports the AC signal of a characteristic frequency, merit
Rate amplifier 323 is for amplifying the AC signal of this characteristic frequency, and filter circuit 324 is used for filtering
Except harmonic wave and the frequency-portions being not required to of this AC signal, thereby with output to corresponding transmitting thin film wire
The starting of oscillation antenna 312 of coil element 31.
In the present embodiment, each current-collecting device 4 includes a wireless charging receptor 4a and negative
Carry 4b, wherein this wireless charging receptor 4a with load 4b can be in structure separable two devices or
Single device can be integrated into.For example, the wireless charging receptor 4a of current-collecting device 4 can be a nothing
Line charging receives pad, and load 4b can be the mobile phone not having wireless charging function, by by wireless charging
Receive pad to electrically connect with this mobile phone, the mobile phone not having wireless charging function can be made can to realize wireless charging.
In another embodiment, wireless charging receptor 4a also can integrate and be installed on load 4b (such as mobile phone)
Enclosure interior.
Referring again to Fig. 2 A, 2B, 3,4A and 4B, in some embodiments, each is by Denso
The wireless charging receptor 4a putting 4 includes reception film coil element 41 and receiver module 42, its
Middle reception film coil element 41 includes flexible base board, starting of oscillation antenna and resonant antenna, wherein resonance
The two ends of antenna connect one or more capacitors.Receive the flexible base board of film coil element 41, rise
Antenna and the structure of resonant antenna, material and the function of shaking respectively with the transmitting thin film shown in Fig. 4 A and 4B
The flexible base board 311 of coil part 31, starting of oscillation antenna 312 and the structure of resonant antenna 313, material
Identical with function, repeat no more in this.In other embodiments, receive film coil element 41 and remove
Outside flexible base board, starting of oscillation antenna and resonant antenna, it also includes one first protective layer and one
Two protective layers, wherein receive structure and material and Fig. 5 A and 5B or Fig. 6 A of film coil element 41
And the structure launching film coil element 31 shown in 6B is similar to material, repeats no more in this.In
In the present embodiment, receive film coil element 41 and be used for coupling with transmitting film coil element 31, mat
This is to utilize magnetic resonance or the transmitting film coil element 31 of magnetic induction way reception wireless charging device 3
The energy transmitted.In other words, it is positioned over the accommodation space of wireless charging device 3 when current-collecting device 4
303, the film coil element 31 of launching of wireless charging device 3 launches the electromagnetic wave of upper frequency (such as
But be not limited to 6.78MHz) and the reception film coil element 41 of current-collecting device 4 identical with this frequency and connect
When receiving this electromagnetic wave, may utilize magnetic resonance mode by energy by the transmitting thin film wire of wireless charging device 3
Coil element 31 is sent to the reception film coil element 41 of wireless charging receptor 4a.Real in other
Execute in example, when current-collecting device 4 is positioned over the accommodation space 303 of wireless charging device 3, wireless charging Denso
The film coil element 31 of launching putting 3 launches the electromagnetic wave (such as but not limited to 100KHz) of lower frequency
And the reception film coil element 41 of current-collecting device 4 is when receiving this electromagnetic wave, available magnetic induction way
Energy is sent to wireless charging receptor 4a by the transmitting film coil element 31 of wireless charging device 3
Reception film coil element 41.Owing to shielding element 34 can stop transmitting film coil element 31 institute
The electromagnetic wave outside launched dissipates, and electromagnetic wave energy can be concentrated to accommodation space 303, thereby can promote
Charge efficiency.
Fig. 9 is the circuit block diagram of the receiver module of the current-collecting device shown in Fig. 2.In some embodiments
In, as shown in Fig. 2 A, 2B and 9, wireless charging receptor 4a includes one or more groups receiver module
42, each of which group receiver module 42 includes filter circuit 421, rectification circuit 422, mu balanced circuit
423 and DC voltage regulation circuit 424.Filter circuit 421 is electrically connected to receive film coil element
The resonant antenna of 41, and the AC signal that the resonant antenna receiving film coil element 41 is exported
Harmonic filtration.Rectification circuit 422 is electrically connected to filter circuit 421 and mu balanced circuit 423, for inciting somebody to action
AC signal is converted to a DC source.Mu balanced circuit 423 is electrically connected at rectification circuit 422 with straight
Stream voltage regulator circuit 424, is stable at a load voltage value for by this DC source.DC voltage
Regulation circuit 424 is electrically connected to mu balanced circuit 423 and load 4b, so that this DC source is carried out electricity
Pressure adjusts the voltage needed for (such as boosting) extremely load 4b, powers load 4b, the such as electricity to mobile phone
Charge in pond.
Figure 10 is the structural representation of a demonstration example of the current-collecting device of display Fig. 2.Such as Fig. 2 and 10
Shown in, current-collecting device 4 includes wireless charging receptor 4a and load 4b, wherein current-collecting device 4
Wireless charging receptor 4a can be that wireless charging receives pad, and load 4b can be not have wireless charging electric work
The mobile phone of energy.Adapter 43 and load as wireless charging receptor 4a (i.e. wireless charging receives pad)
The corresponding adapter electrical connection of 4b (i.e. mobile phone), by the reception film coil of wireless charging receptor 4a
Element 41 and receiver module 42, can receive transmitting film coil element 31 institute of wireless charging device 3
The energy of transmission, makes the mobile phone not having wireless charging function can realize wireless charging.
Figure 11 is the circuit box schematic diagram of a change case of the wireless charging system of the present invention.Yu Benshi
Executing in example, the wireless charging system 2 of the present invention includes wireless charging device 3 and one or more by electricity
Device 4,4 ', wherein wireless charging device 3 can be according to the wireless charging receptor of current-collecting device 4,4 '
4a, 4a ' specification and characteristic and adaptively or optionally switching use magnetic resonance or the side of magnetic induction
Formula, load 4b, 4b with to current-collecting device 4,4 ' ' carries out wireless charging.In this embodiment, nothing
Line charging device 3 includes launching film coil element 31, transmitter module 32, controller 33, first cutting
Change circuit the 36, second switching circuit 37, multiple first capacitor C11、C12And multiple second electric capacity
Device C21、C22, wherein launch film coil element 31 and the structure of transmitter module 32, function and principle
Similar to previous embodiment, receive film coil element 41,41 ' and receiver module 42,42 ' structure,
Function is identical with previous embodiment with principle, repeats no more in this.Multiple first capacitor C11、C12
It is connected in parallel with the starting of oscillation antenna (not shown) launching film coil element 31 respectively, and multiple first electricity
Container C11、C12It is connected in parallel with each other, for the reception film coil element with current-collecting device 4,4 '
41,41 ' coupling.Multiple second capacitor C21、C22Respectively with outfan and the transmitting of transmitter module 32
The starting of oscillation antenna (not shown) of film coil element 31 is connected in series, and multiple second capacitor C21、C22
It is connected in parallel with each other, couples for transmitter module 32, be filtered promoting charging quality.The
One switching circuit 36 includes multiple first switch element S11、S12, each first switch element S11、
S12The first corresponding with one respectively capacitor C11、C12It is connected in series.Second switching circuit 37 includes many
Individual second switch element S21、S22, each second switch element S21、S22Respectively corresponding with one
Two capacitor C21、C22It is connected in series.Controller 33 is electrically connected at the first switching circuit more than 36
Individual first switch element S11、S12And the second multiple second switch element S of switching circuit 3721、S22,
And foundation represents the wireless charging skill that wireless charging receptor 4a, 4a of current-collecting device 4,4 ' ' is used
The sensing signal of art and produce a control signal in response to ground, to control multiple the of the first switching circuit 36
One switch element S11、S12And the second multiple second switch element S of switching circuit 3721、S22's
Conducting and the switching running of cut-off, thereby make the wireless charging device 3 can be according to the nothing of current-collecting device 4,4 '
Line charging receptor 4a, 4a ' specification and characteristic and adaptively or optionally switching use magnetic resonance
Or load 4b, 4b that the mode of magnetic induction is to current-collecting device 4,4 ' ' carries out wireless charging.
In the present embodiment, wireless charging device 3 and current-collecting device 4, the 4 ' operating frequency in time operating
Can calculate according to following equation (1): fa=1/2 π (LaCa)1/2=1/2 π (LbCb)1/2=fb(1), wherein fa with
Fb is respectively the work of wireless charging receptor 4a, 4a of wireless charging device 3 and current-collecting device 4,4 ' '
Working frequency, CaThe first capacitor C for wireless charging device 311、C12Capacitance, LaFor launching
Inductance value on the starting of oscillation antenna of film coil element 31, CbThe 3rd electric capacity for current-collecting device 4,4 '
Device C3、C3’Capacitance, LbFor receiving the inductance on the starting of oscillation antenna of film coil element 41,41 '
Value.For example, the first capacitor C of wireless charging device 311、C12Capacitance can be respectively
0.5 μ F and 0.1nF, inductance value L launched on the starting of oscillation antenna of film coil element 31 is 5 μ H.When
3rd capacitor C of current-collecting device 43Capacitance be 0.5 μ F, receive film coil element 41 rise
Shake inductance value L on antenna3When being 5 μ H, the controller 33 of wireless charging device 3 sends control letter
Number to the first switching circuit 36 and the second switching circuit 37, to turn on the first switch element S11And second
Switch element S21, and turn off the first switch element S12And second switch element S22, thereby wireless charging
Device 3 changeable selection the first capacitor C11(capacitance is also 0.5 μ F), and launch film coil element
Inductance value L on the starting of oscillation antenna of 31 is also 5 μ H, makes wireless charging device 3 and current-collecting device 4
The operating frequency of wireless charging receptor 4a is all 100KHz, thereby can be with the electromagnetic wave of lower frequency
Magnetic induction way is utilized to carry out wireless charging.The 3rd capacitor C when current-collecting device 4 '3’Capacitance be
0.1nF, receives inductance value L on the starting of oscillation antenna of film coil element 41 '3' when being 5 μ H, wireless charging
The controller 33 of electric installation 3 sends and controls signal to the first switching circuit 36 and the second switching circuit 37,
To turn on the first switch element S12And second switch element S22, and turn off the first switch element S11And the
Two switch element S21, the thereby changeable selection of wireless charging device 3 first capacitor C12(capacitance is also
For 0.1nF), inductance value L launched on the starting of oscillation antenna 311 of film coil element 31 is also 5 μ h,
The operating frequency making the wireless charging receptor 4a ' of wireless charging device 3 and current-collecting device 4 ' is all
6.78MHz, thereby can utilize magnetic resonance mode to carry out wireless charging with the electromagnetic wave of upper frequency.Should note
Meaning, aforementioned operation frequency is only and illustrates, and the technology of the present invention is not with the numerical value of aforementioned operating frequency
It is limited.
In the present embodiment, body 301 is a cylinder, and lid 302 is articulated in body rotationally
301, for the opening 304 covering body 301.Many groups are launched film coil element 31 and are arranged at cylinder
In the sidewall 305 of body.Certainly, the body 301 of wireless charging device 3 is not limited with cylinder, also
Other geometrical forms can be changed to according to reality application.Figure 12 is the wireless charging Denso of the display present invention
The structural representation of the second embodiment put.As shown in figure 12, in this embodiment, wireless charging Denso
Component structure and the function thereof of putting 3a are identical with the wireless charging device 3 shown in first embodiment, and phase
Representing similar elements structure and function with element numbers, repeat no more in this, only the present embodiment is wireless
The body 301 of charging device 3a is a box body, and many groups are launched film coil element 31 and are arranged at box
In the sidewall 305 of body.
Figure 13 is the structural representation of the 3rd embodiment of the wireless charging device of the display present invention.Such as figure
Shown in 13, in this embodiment, the component structure of wireless charging device 3b and function thereof are implemented with first
Wireless charging device 3 shown in example is identical, and similar elements label represents similar elements structure and function,
Repeating no more in this, only the body 301 of the wireless charging device 3b of the present embodiment is a cylinder, and one
Launch film coil element 31 to be arranged in cylinder, wherein launch the resonance sky of film coil element 31
The sidewall 305 of cylinder in line 313 is arranged at the sidewall 305 of cylinder and it is set around with three-dimensional spiral way
In, the starting of oscillation antenna 312 launching film coil element 31 is arranged in the diapire 306 of cylinder.
Figure 14 is the structural representation of the 4th embodiment of the wireless charging device of the display present invention.Such as figure
Shown in 14, in this embodiment, the component structure of wireless charging device 3c and function thereof are implemented with first
Wireless charging device 3 shown in example is identical, and similar elements label represents similar elements structure and function,
Repeating no more in this, only the body 301 of the wireless charging device 3c of the present embodiment is a cylinder, and many
Group is launched film coil element 31 and is arranged in the sidewall 305 of cylinder.Wireless charging device 3c also wraps
Include another two groups and launch film coil element 31a, 31b, wherein launch film coil element 31a and be arranged at
In the diapire 306 of cylinder, launch film coil element 31b and be arranged in lid 302, wherein launch
The component structure of film coil element 31a, 31b is similar to launching film coil element 31 to function,
Repeat no more in this.
Figure 15 is the structural representation of the 5th embodiment of the wireless charging device of the display present invention.Such as figure
Shown in 12, in this embodiment, the component structure of wireless charging device 3d and function thereof are implemented with first
Wireless charging device 3 shown in example is identical, and similar elements label represents similar elements structure and function,
Repeating no more in this, only the body 301 of the wireless charging device 3d of the present embodiment is a U-shaped body structure,
And how group transmitting film coil element 31 is arranged in sidewall 305 and the diapire 306 of U-shaped body structure.
Lid 302 is in box body structure, and can completely cover cladding body 301.First screen of shielding element 34
Cover portion 341 and be attached at the outer surface of body 301, and secondary shielding portion 342 is attached at lid 302
Outer surface.After lid 302 covers cladding body 301, wireless charging device 3 can be by shielding element
The cladding of 34 and can stop that electromagnetic wave outside dissipates, and electromagnetic wave can be made to concentrate on accommodation space 303,
To close at one or more current-collecting devices 4 of accommodation space 303 be charged holding, promote its charging
Efficiency.
In sum, the present invention provides a kind of wireless charging device and system, the wireless charging of the present invention
Device can be launched the electromagnetic wave of a characteristic frequency or many different frequencies and carry out one or more current-collecting devices
Wireless charging, and can suppress those electromagnetic wave divergent to reduce the electromagnetic wave injury to user, and can
Concentrate electromagnetic wave to a charged area one or more current-collecting devices are carried out contactless charging, by force
Change electromagnetic wave amount to promote charge efficiency.The wireless charging device of the present invention has an accommodation space for one
Individual or multiple current-collecting devices are placed, and can ensure that this one or more receives same frequency or different frequency
The current-collecting device of the electromagnetic wave of rate can simultaneously or timesharing ground and the most simultaneously carrying out in this accommodation space
Wireless charging, its simple in construction, it is possible to decrease cost, and the convenience of versatility and use can be increased.
Additionally, the wireless charging system of the present invention includes aforementioned wireless charging device and one or more by electricity
Device, its adaptability or optionally switching use magnetic resonance coupling or magnetic induction way to realize wireless
Charging, and can reach aforementioned effect.
Those skilled in the art make any variation and modification according to technical scheme, do not take off
Claim scope of the claimed from the present invention.
Claims (22)
1. a wireless charging device, for one or more current-collecting devices are carried out wireless charging, it is special
Levying and be, this wireless charging device includes:
One housing, including a body, this body has an accommodation space and an opening, this accommodating sky
Between hold receive these one or more current-collecting devices；
Least one set launches film coil element, is arranged in this body, and for launching a specific frequency
The electromagnetic wave of rate or many different frequencies is to carry out wireless charging to these one or more current-collecting devices, wherein
Each group of this transmitting film coil element includes that at least one antenna, to receive an AC signal, launches this electricity
Magnetic wave；And
One shielding element, is attached at an outer surface of this body, or is arranged in this body and at least portion
Ground is divided to cover this antenna of this transmitting film coil element, for stopping that this electromagnetic wave outside dissipates.
2. wireless charging device as claimed in claim 1, it is characterised in that each group of this transmitting is thin
Film coil part includes a flexible base board, a starting of oscillation antenna and a resonant antenna, this starting of oscillation antenna with
This resonant antenna is positioned at two opposite faces of this flexible base board, and this starting of oscillation antenna receives this AC signal, should
The two ends of resonant antenna are connected to one or more capacitor, and this resonant antenna and this starting of oscillation antenna coupling
Close, to launch this electromagnetic wave.
3. wireless charging device as claimed in claim 2, it is characterised in that each group of this transmitting is thin
Film coil part also includes:
One first protective layer, covers this starting of oscillation antenna；And
One second protective layer, covers this resonant antenna；
Wherein, this shielding element is attached at outside the one of this first protective layer, or is arranged at this first guarantor
Between sheath and this starting of oscillation antenna.
4. wireless charging device as claimed in claim 2, it is characterised in that this flexible base board is
Tack coat, and the material of this tack coat selected from photocuring binding material, thermosetting binder material, be mixed with
The solidification binding material of one magnetic material, ethylene-acetic ethylene ester copolymer system glue, polyamide-based glue,
Rubber series glue, polyolefin glue or moisture-curable polyurethane adhesive.
5. wireless charging device as claimed in claim 2, it is characterised in that this flexible base board has
One first and one second, this first of this flexible base board includes a tack coat respectively with these two,
And this starting of oscillation antenna and this resonant antenna respectively by respectively this tack coat be arranged at this flexible base board this
Simultaneously with this second, wherein the material of this tack coat is selected from photocuring binding material, thermosetting binder
Material, be mixed with the solidification binding material of a magnetic material, ethylene-acetic ethylene ester copolymer system glue,
Polyamide-based glue, rubber series glue, polyolefin glue or moisture-curable polyurethane adhesive.
6. wireless charging device as claimed in claim 2, it is characterised in that this body also includes
Sidewall and a diapire, and this body is a cylinder, wherein this resonance of this transmitting film coil element
Antenna is set around in this sidewall with three-dimensional spiral way, this starting of oscillation antenna of this transmitting film coil element
It is arranged in this diapire.
7. wireless charging device as claimed in claim 1, it is characterised in that this housing also includes
Lid, and this lid covers this opening of this body.
8. wireless charging device as claimed in claim 7, it is characterised in that this shielding element includes:
One first shielding part, is attached at this outer surface of this body and covers this transmitting film coil unit
Part；And
One secondary shielding portion, is attached at an outer surface of this lid.
9. wireless charging device as claimed in claim 7, it is characterised in that this body also includes
Sidewall and a diapire, and this body is a cylinder or a box body, wherein this lid is articulated in this body,
And this least one set transmitting film coil element is arranged in this sidewall of this body.
10. wireless charging device as claimed in claim 9, it is characterised in that also include two groups additionally
Transmitting film coil element, in being respectively arranged at this diapire of this body and in this lid.
11. wireless charging devices as claimed in claim 7, it is characterised in that this body also includes one
Sidewall and a diapire, and this body is a U-shaped body structure, wherein this lid is a box body structure,
This least one set is launched film coil element and is arranged in this sidewall and this diapire, and this lid covers bag
Cover this body.
12. wireless charging devices as claimed in claim 1, it is characterised in that also include a protective layer,
Cover this shielding element at least in part.
13. wireless charging devices as claimed in claim 1, it is characterised in that this shielding element is one
Metal grill film, a magnetic conductive film or a combination thereof.
14. wireless charging devices as claimed in claim 13, it is characterised in that this metal grill film
Material selected from copper, gold, silver, aluminum, tungsten, chromium, titanium, indium, stannum, nickel, ferrum or its at least the two
Above formed metal composite.
15. wireless charging devices as claimed in claim 13, it is characterised in that this metal grill film
Having a lattice, this lattice includes multiple grid cell, this grid cell of each of which
The two micro-lines of metal that are adjacent but that do not connect have a spacing, and this is smaller than a wavelength of this electromagnetic wave.
16. wireless charging devices as claimed in claim 13, it is characterised in that this magnetic conductive film comprises
One soft magnetic materials, this soft magnetic materials is closed by ferrite, zinc-nickel ferrite, zinc-manganese ferrite or ferrum sial
Gold is constituted with a binding material.
17. wireless charging devices as claimed in claim 1, it is characterised in that also include least one set
Transmitter module, this transmitter module is electrically connected at this transmitting film coil element of correspondence and includes:
One power-switching circuit, is electrically connected to a power supply and the electric energy conversion provided by this power supply；
One agitator, is connected to this power-switching circuit and adjustably exports this exchange of a characteristic frequency
Signal；
One power amplifier, is connected to this agitator and this power-switching circuit, and is used for amplifying this friendship
Stream signal；And
One filter circuit, is connected to this power amplifier, and for filtering this AC signal and defeated
Go out this AC signal to this transmitting film coil element.
18. 1 kinds of wireless charging systems, it is characterised in that including:
One wireless charging device, including:
One housing, including a body, this body has an accommodation space and an opening；
Least one set launches film coil element, is arranged in this body, and specific for launching one
Frequency or the electromagnetic wave of many different frequencies, this transmitting film coil element of each of which group includes at least one
Antenna, to receive an AC signal, launches this electromagnetic wave；And
One shielding element, is attached at an outer surface of this body, or is arranged in this body and at least
Partly cover this antenna of this transmitting film coil element, for stopping that this electromagnetic wave outside dissipates；
And
At least one current-collecting device, holds this accommodation space closing at this housing, and includes a reception thin film
Coil part, wherein this reception film coil element and this transmitting film coil of this wireless charging device
Element couples, to receive the energy that this wireless charging device is transmitted.
19. wireless charging systems as claimed in claim 18, it is characterised in that this wireless charging Denso
Each group put this transmitting film coil element includes a flexible base board, a starting of oscillation antenna and a resonance
Antenna, this starting of oscillation antenna and this resonant antenna are positioned at two opposite faces of this flexible base board, this starting of oscillation antenna
Receiving this AC signal, the two ends of this resonant antenna are connected to one or more capacitor, and this resonance
Antenna couples with this starting of oscillation antenna, to launch this electromagnetic wave.
20. wireless charging systems as claimed in claim 19, it is characterised in that this current-collecting device
This transmitting film coil element phase of the structure of this reception film coil element and this wireless charging device
With.
21. wireless charging systems as claimed in claim 18, it is characterised in that this current-collecting device is also
Including a receiver module, it is connected to this reception film coil element, with by this reception film coil element
The energy received is changed, and this receiver module includes:
One filter circuit, is connected to this reception film coil element and to this reception film coil element institute
One AC signal of output is filtered；
One rectification circuit, is connected to this filter circuit, is converted to a direct current for by this AC signal
Power supply；
One mu balanced circuit, is connected to this rectification circuit, specified for this DC source is stable at one
Magnitude of voltage；And
One direct current voltage regulator circuit, is connected to this mu balanced circuit and a load, with to this unidirectional current
Source carries out Voltage Cortrol and exports to this load.
22. wireless charging systems as claimed in claim 18, it is characterised in that this wireless charging Denso
Put and also include a controller, be used for controlling this wireless charging device with magnetic resonance or magnetic coupling mode to this
Current-collecting device carries out wireless charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295635.3A CN106300574A (en) | 2015-06-02 | 2015-06-02 | Wireless charging device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295635.3A CN106300574A (en) | 2015-06-02 | 2015-06-02 | Wireless charging device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106300574A true CN106300574A (en) | 2017-01-04 |
Family
ID=57656543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510295635.3A Pending CN106300574A (en) | 2015-06-02 | 2015-06-02 | Wireless charging device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106300574A (en) |
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| CN106602733A (en) * | 2017-01-13 | 2017-04-26 | 上海蔚来汽车有限公司 | Multi-resonant-circuit-parallel-connection-based magnetic coupling resonant power transmitting terminal, receiving terminal and system |
| CN107659002A (en) * | 2017-09-29 | 2018-02-02 | 郑州携能通信技术有限公司 | A kind of wireless charging emitter, reception device and wireless charging system |
| CN111133656A (en) * | 2017-07-20 | 2020-05-08 | Tdk株式会社 | Primary assembly for wireless power transmission system, positioning system, and method of determining distance between primary assembly and secondary assembly |
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| CN111133656A (en) * | 2017-07-20 | 2020-05-08 | Tdk株式会社 | Primary assembly for wireless power transmission system, positioning system, and method of determining distance between primary assembly and secondary assembly |
| CN107659002A (en) * | 2017-09-29 | 2018-02-02 | 郑州携能通信技术有限公司 | A kind of wireless charging emitter, reception device and wireless charging system |
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