CN104578222B - A kind of wireless charging device and system - Google Patents
A kind of wireless charging device and system Download PDFInfo
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- CN104578222B CN104578222B CN201310516792.3A CN201310516792A CN104578222B CN 104578222 B CN104578222 B CN 104578222B CN 201310516792 A CN201310516792 A CN 201310516792A CN 104578222 B CN104578222 B CN 104578222B
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- 239000003990 capacitor Substances 0.000 claims abstract description 117
- 230000005611 electricity Effects 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 6
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- 238000004519 manufacturing process Methods 0.000 description 2
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- H02J7/025—
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Abstract
Embodiments of the invention provide a kind of wireless charging device and system, it is related to electronic technology field there is provided a kind of wireless charging scheme, solves wireless charging device design thick and heavy, the problem of transmitting terminal is only capable of correspondence single receiving terminal, improves the practicality of equipment wireless charging.Its method is：Correctly aligned by the capacitor plate of wireless charging receiving circuit in the capacitor plate and electronic equipment of wireless charging receiving coil in wireless charging adapter, constitute complete reception electric capacity and constitute receiver with the first inductance coil, rectification circuit, coupled with wireless charging emission source magnetic resonance, receive the electric energy that wireless charging emission source is sent；Again power supply is provided after rectified circuit rectifies for charging equipment load.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of wireless charging device and system.
Background technology
At present, realize that energy is transmitted using capacitive coupling technique more than wireless charging technology, pass through transmitting terminal and receiving terminal group
Close the capacitor formed and transfer energy to receiving side.But this scheme needs the coil received in lateral circuit being integrated in mostly
In charging equipment, while current close coupling scheme will also add shielding magnetic sheet, this not only adds the thickness of equipment, also increase
Added the weight of equipment, and the wireless charging outer casing protective sleeve of some wireless charging accessories, such as mobile phone, it is necessary on the protective sleeve plus
Enter power interface and carry out physical connection with mobile phone, charging could be realized, the increase of protective case volume is also resulted in；In addition existing skill
Transmitting terminal must be corresponded with receiving terminal when art carries out wireless charging, and these problems all reduce equipment and carry out wireless charging
Practicality.
The content of the invention
Embodiments of the invention provide a kind of wireless charging device and system, solve wireless charging device and design thick and heavy,
And a transmitting terminal is the problem of can only correspond to single receiving terminal, so as to improve the practicality that equipment carries out wireless charging.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
First aspect includes there is provided a kind of wireless charging component, the wireless charging component：
Wireless charging receiving coil, wireless charging receiving circuit and wireless charging emission source；
The wireless charging receiving coil includes：First inductance coil, the first capacitor plate and the second capacitor plate, it is described
The first end of first inductance coil is electrically connected with first capacitor plate, the second end of first inductance coil and described the
Two capacitor plates are electrically connected；
The wireless charging receiving circuit includes：Rectification circuit, the 3rd capacitor plate and the 4th capacitor plate, the rectification
The first input end of circuit is electrically connected with the 3rd capacitor plate, the second input of the rectification circuit and the described 4th electricity
Hold pole plate electrical connection；
First capacitor plate constitutes the first electric capacity, second electricity when aligning correct with the 3rd capacitor plate
Hold pole plate and constitute the second electric capacity when aligning correct with the 4th capacitor plate；The contraposition correctly includes：First electricity
The facing area of appearance pole plate and the 3rd capacitor plate is in the first preset threshold range and pole plate spacing is in the second default threshold
In the range of value, the facing area of second capacitor plate and the 4th capacitor plate is in first preset threshold range
And pole plate spacing is in second preset threshold range；
The wireless charging emission source includes：High frequency electric source, transmitting electric capacity and the second inductance coil, second inductor wire
The first end of circle is electrically connected with the first end of the transmitting electric capacity, the second end and the high frequency electric source of second inductance coil
The first output end electrical connection, it is described transmitting electric capacity the second end electrically connected with the second output end of the high frequency electric source；
The transmitting electric capacity constitutes the transmitting resonant network with default resonant frequency with second inductance coil, described
First coil constitutes with first electric capacity, second electric capacity and receives resonant network；If it is described reception resonant network with it is described
Transmitting resonant network meets magnetic resonance condition, and the reception resonant network receives electric energy, the electricity from the transmitting resonant network
DC current output can be transformed to by alternating current by the rectification circuit, be that load to be charged carries out charging.
With reference in a first aspect, in the first possible implementation, it is described wireless that the wireless charging component includes
The quantity of charging receiving coil is at least one, and the quantity of the wireless charging receiving circuit is at least one；
The quantity of the wireless charging receiving coil is equal with the quantity of the wireless charging receiving circuit.
With reference in a first aspect, in second of possible implementation, the wireless charging component also includes：
Compensating electric capacity, the resonant frequency for adjusting the reception resonant network；
The compensating electric capacity is connected between the first end of first inductance coil and first capacitor plate, or,
The compensating electric capacity is connected between the second end of first inductance coil and second capacitor plate；Or,
The compensating electric capacity is connected between the first input end of the rectification circuit and the 3rd capacitor plate, or,
The compensating electric capacity is connected between the second input of the rectification circuit and the 4th capacitor plate, and or, the benefit
Electric capacity is repaid to be connected in parallel between the first input end of the rectification circuit and the second input of the rectification circuit.
Second aspect includes there is provided a kind of wireless charging receiving coil, the wireless charging receiving coil：
First inductance coil, the first capacitor plate and the second capacitor plate, the first end of first inductance coil and institute
The electrical connection of the first capacitor plate is stated, the second end of first inductance coil is electrically connected with second capacitor plate；
First capacitor plate be used for the 3rd capacitor plate in wireless charging receiving circuit align it is correct when group
Into the first electric capacity, second capacitor plate is used to align just with the 4th capacitor plate in the wireless charging receiving circuit
The second electric capacity is constituted when really；
The contraposition correctly includes：The facing area of first capacitor plate and the 3rd capacitor plate is pre- first
If threshold range is interior and pole plate spacing is in the second preset threshold range, second capacitor plate and the 4th capacitor plate
Facing area is in first preset threshold range and pole plate spacing is in second preset threshold range；
First inductance coil, which is used to constitute with first electric capacity, second electric capacity, receives resonant network, if institute
State reception resonant network and meet magnetic resonance condition with the transmitting resonant network, the reception resonant network is from the transmitting resonance
Network receives electric energy.
With reference to second aspect, in the first possible implementation, the wireless charging receiving coil also includes：
Compensating electric capacity, the resonant frequency for adjusting the reception resonant network；
The compensating electric capacity is connected between the first end of first inductance coil and first capacitor plate, or,
The compensating electric capacity is connected between the second end of first inductance coil and second capacitor plate.
The third aspect includes there is provided a kind of wireless charging receiving circuit, the wireless charging receiving circuit：
Rectification circuit, the 3rd capacitor plate and the 4th capacitor plate, the first input end of the rectification circuit and described the
Three capacitor plates are electrically connected, and the second input of the rectification circuit is electrically connected with the 4th capacitor plate；
3rd capacitor plate be used for the first capacitor plate in wireless charging receiving coil align it is correct when group
Into the first electric capacity, the 4th capacitor plate is used to align just with the second capacitor plate in the wireless charging receiving coil
The second electric capacity is constituted when really；
The contraposition correctly includes：The facing area of 3rd capacitor plate and first capacitor plate is pre- first
If threshold range is interior and pole plate spacing is in the second preset threshold range, the 4th capacitor plate and second capacitor plate
Facing area is in first preset threshold range and pole plate spacing is in second preset threshold range；
First electric capacity, second electric capacity are used for and the first inductance coil structure in the wireless charging receiving coil
Into resonant network is received, if the reception resonant network meets magnetic resonance condition with the transmitting resonant network, the reception is humorous
Vibrating network receives electric energy from the transmitting resonant network, and the rectification circuit is used to the electric energy being transformed to directly by alternating current
Electric current output is flowed, is that load to be charged carries out charging.
With reference to the third aspect, in the first possible implementation, the wireless charging receiving circuit also includes：
Compensating electric capacity, the resonant frequency for adjusting the reception resonant network；
The compensating electric capacity is connected between the first input end of the rectification circuit and the 3rd capacitor plate, or,
The compensating electric capacity is connected between the second input of the rectification circuit and the 4th capacitor plate, and or, the benefit
Electric capacity is repaid to be connected in parallel between the first input end of the rectification circuit and the second input of the rectification circuit.
Fourth aspect includes there is provided a kind of wireless charging emission source, the wireless charging emission source：
High frequency electric source, transmitting electric capacity and the second inductance coil, the first end of second inductance coil and the transmitting electricity
The first end electrical connection of appearance, the second end of second inductance coil is electrically connected with the first output end of the high frequency electric source, institute
The second end for stating transmitting electric capacity is electrically connected with the second output end of the high frequency electric source；
The transmitting electric capacity is used to constitute the transmitting resonant network with default resonant frequency with second inductance coil,
In order to be carried out with one or more reception resonant networks being made up of wireless charging receiving coil and wireless charging receiving circuit
Magnetic resonance coupled transfer electric energy.
5th aspect is there is provided a kind of wireless charging adapter, and the wireless charging adapter includes：
Wireless charging as described in one or more the first possible implementation such as second aspect or second aspect
Receiving coil.
With reference to the 5th aspect, in the first possible implementation, the wireless charging adapter also includes：Such as the 4th
Wireless charging emission source described in aspect.
6th aspect is there is provided a kind of electronic equipment, and the electronic equipment includes：
Wireless charging receiving circuit as described in the first possible implementation of the third aspect or the third aspect and negative
Carry；
Rectification circuit output end in the wireless charging receiving circuit is electrically connected with the load.
7th aspect is there is provided a kind of wireless charging system, and the wireless charging system includes：
Wireless charging adapter, the wireless charging emission source as described in fourth aspect, Yi Jiyi as described in terms of the 5th
Individual or multiple electronic equipments as described in terms of the 6th；Or,
Wireless charging adapter as described in the first possible implementation in terms of the 5th and one or more such as the
Electronic equipment described in six aspects.
Embodiments of the invention provide a kind of wireless charging device and system, pass through wireless charging in wireless charging adapter
The capacitor plate of wireless charging receiving circuit is correctly aligned in the capacitor plate and electronic equipment of receiving coil, constitutes complete receive
Electric capacity simultaneously constitutes receiver with the first inductance coil, rectification circuit, is coupled with wireless charging emission source magnetic resonance, receives wireless charging
The electric energy that electric emission source is sent；Again power supply is provided after rectified circuit rectifies for charging equipment load.So, solve wireless
Charging equipment design is thick and heavy, and a transmitting terminal is the problem of can only correspond to single receiving terminal, thus improve equipment carry out it is wireless
The practicality of charging.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of wireless charging component provided in an embodiment of the present invention；
Fig. 2 is a kind of circuit diagram of wireless charging receiving coil provided in an embodiment of the present invention；
Fig. 3 is a kind of circuit diagram of wireless charging receiving circuit provided in an embodiment of the present invention；
Fig. 4 is the electricity that a kind of wireless charging receiving coil provided in an embodiment of the present invention is combined with wireless charging receiving circuit
Road schematic diagram；
Fig. 5 is a kind of circuit diagram of wireless charging emission source provided in an embodiment of the present invention；
Fig. 6 A are a kind of wireless charging receiving coil provided in an embodiment of the present invention, wireless charging receiving circuit, wireless charging
The circuit diagram one of electric emission source combination；
Fig. 6 B are a kind of wireless charging receiving coil provided in an embodiment of the present invention, wireless charging receiving circuit, wireless charging
The circuit diagram two of electric emission source combination；
Fig. 6 C are a kind of wireless charging receiving coil provided in an embodiment of the present invention, wireless charging receiving circuit, wireless charging
The circuit diagram three of electric emission source combination；
Fig. 6 D are a kind of wireless charging receiving coil provided in an embodiment of the present invention, wireless charging receiving circuit, wireless charging
The circuit diagram four of electric emission source combination；
Fig. 7 is a kind of structural representation of wireless charging adapter provided in an embodiment of the present invention；
Fig. 8 is the structural representation of a kind of electronic equipment provided in an embodiment of the present invention；
Fig. 9 is a kind of structural representation of wireless charging system provided in an embodiment of the present invention；
Figure 10 is the structural representation of another wireless charging system provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiments of the invention provide a kind of wireless charging component 00, as shown in figure 1, the wireless charging component 00 includes：
Wireless charging receiving coil 01, wireless charging receiving circuit 02, wireless charging emission source 03.
Wherein, wireless charging receiving coil 01 includes：First inductance coil Ls, the first capacitor plate Cs1pWith the second electric capacity
Pole plate Cs2p；Wireless charging receiving circuit 02 includes：Rectification circuit 021, the 3rd capacitor plate Cs1sWith the 4th capacitor plate Cs2s；
Wireless charging emission source 03 includes：High frequency electric source 031, transmitting electric capacity CpWith the second inductance coil Lp。
Specifically, in wireless charging receiving coil 01, as shown in Fig. 2 the first inductance coil LsFirst end and first
Capacitor plate Cs1pElectrical connection, the first inductance coil LsThe second end and the second capacitor plate Cs2pElectrical connection；
In wireless charging receiving circuit 02, as shown in figure 3, the first input end of rectification circuit 021 and the 3rd capacitance pole
Plate Cs1sElectrical connection, the second input and the 4th capacitor plate C of rectification circuit 021s2sElectrical connection.
First capacitor plate Cs1pWith the 3rd capacitor plate Cs1sFor constituting the first electric capacity C when aligning corrects1, described
Two capacitor plate Cs2pWith the 4th capacitor plate Cs2sThe second electric capacity C is constituted when aligning corrects2；First electric capacity Cs1With the second electricity
Hold Cs2Reception electric capacity C is used as parallel combinations；
Wherein, contraposition correctly includes：The facing area of first capacitor plate and the 3rd capacitor plate is in the first predetermined threshold value
In the range of and pole plate spacing in the second preset threshold range, the facing area of the second capacitor plate and the 4th capacitor plate is
One preset threshold range is interior and pole plate spacing is in the second preset threshold range.
First inductance coil LsFor with receiving electric capacity Cs, rectification circuit 021 constitute receiver 04, as shown in figure 4, receive
Device 04 is included by the first inductance coil LsWith receiving electric capacity CsThe reception resonant network of composition, for from wireless charging emission source 03
Receive electric energy.
Specifically, in wireless charging emission source 03, as shown in figure 5, the second inductance coil LpFirst end with transmitting electricity
Hold CpFirst end electrical connection, the second inductance coil LpThe second end electrically connected with the first output end of high frequency electric source 031, launch
Electric capacity CpThe second end electrically connected with the second output end of high frequency electric source 031, the input of high frequency electric source 031 termination externally fed；
Launch electric capacity CpWith the second inductance coil LpFor constituting the transmitting resonant network with default resonant frequency, to connecing
Receive device 04 and send electric energy.
It is worth mentioning, the transmitting resonant network in wireless charging emission source 03 can have to one receives resonant network
Receiver 04 send electric energy, can also simultaneously to it is multiple have receive resonant network receivers 04 send electric energy.
Optionally, wireless charging component 00 can also include：Compensating electric capacity Cs3, for coordinating the first electricity according to design requirement
Hold Cs1, the second electric capacity Cs2Regulation receives electric capacity Cs, exemplary, compensating electric capacity Cs3Can in wireless charging receiving coil 01,
Can also be in wireless charging receiving circuit 02.
In an embodiment of the present invention, it is exemplary, wireless charging receiving coil 01, wireless charging receiving circuit 02, nothing
The operation principle of line charging emission source 03 is as shown in Figure 6A：
In wireless charging emission source 03, high frequency electric source 031 is powered by outside input, and output provides high-frequency ac current,
By by the second inductance coil LpWith transmitting electric capacity CpThe transmitting resonant network of composition, to preset resonant frequency f0Carry out electromagnetic vibration
Swing and outside radiated electromagnetic wave.Wherein, resonant frequency is：
Corresponding angular frequency, i.e. circuit parameter are：
In the first inductance coil L in wireless charging receiving coil 01sWith receiving electric capacity C in wireless charging receiving circuit 02s
In the receiver 04 constituted, the first inductance coil LsWith receiving electric capacity CsConstitute and receive resonant network, as reception electric capacity CsWith connecing
Take-up circle LsMeet：
Show to launch in now wireless charging emission source 03 resonant network with receiving the resonance of resonant network in receiver 04
Frequency is equal, and wireless charging emission source 03 meets magnetic resonance coupling condition, i.e. receiver 04 with receiver 04 can be by receiving nothing
The electromagnetic wave that line charging emission source 03 is sent obtains electric energy.And the electric energy of acquisition is further passed through into wireless charging receiving circuit 02
In rectification circuit 021 carry out rectification, by alternating current be converted to DC current for load charging equipment carry out charging confession
Electricity, realizes the purpose of wireless charging.
Optionally, as shown in Figure 6B, according to wireless charging receiving coil 01 or wireless charging receiving circuit 02 in design and
The requirement selected during manufacture component, such as product appearance, volume and manufacturing cost factor, by changing capacitor plate just
First electric capacity C is adjusted to area or pole plate spacings1With the second electric capacity Cs2On the basis of capacitance, it can also be connect in wireless charging
Receive and compensating electric capacity C is added in circuit 02s3, make reception electric capacity CsWith the first inductance coil LsMeet：
Show to launch in now wireless charging emission source 03 resonant network with receiving the resonance of resonant network in receiver 04
Frequency is equal, and wireless charging emission source 03 meets magnetic resonance coupling condition with receiver 04, and application mode is same as described above, herein
Repeat no more.
Optionally, as shown in Figure 6 C, compensation electricity can also be added in wireless charging receiving coil 01 according to design requirement
Hold Cs3, make reception electric capacity CsWith the first inductance coil LsMeet：
Show to launch in now wireless charging emission source 03 resonant network with receiving the resonance of resonant network in receiver 04
Frequency is equal, and wireless charging emission source 03 meets magnetic resonance coupling condition with receiver 04, and application mode is same as described above, herein
Repeat no more.
Optionally, as shown in Figure 6 D, compensation electricity can also be added in wireless charging receiving circuit 02 according to design requirement
Hold Cs3, make reception electric capacity CsWith the first inductance coil LsMeet：
Show to launch in now wireless charging emission source 03 resonant network with receiving the resonance of resonant network in receiver 04
Frequency is equal, and wireless charging emission source 03 meets magnetic resonance coupling condition with receiver 04, and application mode is same as described above, herein
Repeat no more.
Embodiments of the invention also provide a kind of wireless charging adapter 05, as shown in fig. 7, the wireless charging adapter 05
Including one or more wireless charging receiving coils 01, receiver 04 is collectively constituted with corresponding electronic equipment.
Optionally, the wireless charging adapter 05 can also include wireless charging emission source 03.
Embodiments of the invention also provide a kind of electronic equipment 06, as shown in figure 8, the electronic equipment 06 includes wireless charging
Receiving circuit 02 and load to be charged, and the output end of rectification circuit 021 in wireless charging receiving circuit 02 and load to be charged
Electrical connection, is output as load supplying to be charged.
Embodiments of the invention also provide a kind of wireless charging system 07, and the wireless charging system 07 includes：Wireless charging
Adapter 05, wireless charging emission source 03, electronic equipment 06.
Exemplary, wireless charging adapter 05 can be wireless charging desk or wireless charging pallet, as shown in figure 9,
Integrated separate emission source 03, one or more wireless charging receiving coils 01, work as collection in the wireless charging desk or pallet
Electronic equipment 06 into respective wireless charging receiving circuit 02 is placed on desktop or tray surface relevant position, makes the first electric capacity
Pole plate Cs1pWith the 3rd capacitor plate Cs1sContraposition is correct, the second capacitor plate Cs2pWith the 4th capacitor plate Cs2sContraposition is correct, nothing
Line charging desk or pallet constitute complete receiver 04 with electronic equipment 06, and electric energy is provided in the normal work of wireless charging emission source 03
In the case of, the electric energy that the wireless receiving wireless charging emission source 03 of receiver 04 is sent, realization is carried out wirelessly to electronic equipment 06
The purpose of charging.And wireless charging emission source 03 can provide electric energy to multiple receivers 04 simultaneously, realize to multiple electronic equipments
06 wireless charging.
Optionally, wireless charging emission source 03 can be integrated in wireless charging desk or pallet, can also be arranged on wireless charging
Outside electric table or pallet, the above-mentioned purpose that wireless charging is carried out to electronic equipment 06 equally can be achieved, can be selected according to design requirement
Select scheme.
Exemplary, wireless charging adapter 05 can also be the outer casing protective sleeve of electronic equipment 06, as shown in Figure 10,
A wireless charging receiving coil 01 is integrated with the outer casing protective sleeve, after electronic equipment 06 is mounted with the outer casing protective sleeve,
Wherein the first capacitor plate C of wireless charging receiving coil 01s1p, the second capacitor plate Cs2pWith wireless charging in electronic equipment 05
3rd capacitor plate C of receiving circuit 02s1s, the 4th capacitor plate Cs2sCorrect, the complete receiver 04 of composition is aligned respectively, works as nothing
Line charging emission source 03 normal work provides electric energy, and receiver 04 is located at the default model centered on wireless charging emission source 03
In enclosing, you can carry out wireless charging to electronic equipment 06, so as to require charging equipment and transmitting terminal when solving wireless charging
Near, the problem of equipment mobile range is small close to distance.
The implementation of above-mentioned wireless charging adapter 05 is exemplary only, includes but is not limited to this.
Embodiments of the invention provide a kind of wireless charging device and system, pass through wireless charging in wireless charging adapter
The capacitor plate of wireless charging receiving circuit is correctly aligned in the capacitor plate and electronic equipment of receiving coil, constitutes complete receive
Electric capacity simultaneously constitutes receiver with the first inductance coil, rectification circuit, is coupled with wireless charging emission source magnetic resonance, receives wireless charging
The electric energy that electric emission source is sent；Again power supply is provided after rectified circuit rectifies for charging equipment load.So, solve wireless
Charging equipment design is thick and heavy, and a transmitting terminal is the problem of can only correspond to single receiving terminal, thus improve equipment carry out it is wireless
The practicality of charging.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (11)
1. a kind of wireless charging component, it is characterised in that the wireless charging component includes：
Wireless charging receiving coil, wireless charging receiving circuit and wireless charging emission source；
The wireless charging receiving coil includes：First inductance coil, the first capacitor plate and the second capacitor plate, described first
The first end of inductance coil is electrically connected with first capacitor plate, the second end of first inductance coil and the described second electricity
Hold pole plate electrical connection；
The wireless charging receiving circuit includes：Rectification circuit, the 3rd capacitor plate and the 4th capacitor plate, the rectification circuit
First input end electrically connected with the 3rd capacitor plate, the second input of the rectification circuit and the 4th capacitance pole
Plate is electrically connected；
First capacitor plate constitutes the first electric capacity, second capacitance pole with the 3rd capacitor plate when aligning correct
Plate constitutes the second electric capacity with the 4th capacitor plate when aligning correct；The contraposition correctly includes：First capacitance pole
Plate and the 3rd capacitor plate facing area is in the first preset threshold range and pole plate spacing is in the second predetermined threshold value model
In enclosing, the facing area of second capacitor plate and the 4th capacitor plate is in first preset threshold range and pole
Plate spacing is in second preset threshold range；
The wireless charging emission source includes：High frequency electric source, transmitting electric capacity and the second inductance coil, second inductance coil
First end electrically connect with the first end of the transmitting electric capacity, and the of the second end of second inductance coil and the high frequency electric source
One output end is electrically connected, and the second end of the transmitting electric capacity is electrically connected with the second output end of the high frequency electric source；
The transmitting electric capacity constitutes the transmitting resonant network with default resonant frequency, described first with second inductance coil
Inductance coil constitutes with first electric capacity, second electric capacity and receives resonant network；If it is described reception resonant network with it is described
Transmitting resonant network meets magnetic resonance condition, and the reception resonant network receives electric energy, the electricity from the transmitting resonant network
DC current output can be transformed to by alternating current by the rectification circuit, be that load to be charged carries out charging.
2. wireless charging component according to claim 1, it is characterised in that the nothing that the wireless charging component includes
The quantity of line charging receiving coil is at least one, and the quantity of the wireless charging receiving circuit is at least one；
The quantity of the wireless charging receiving coil is equal with the quantity of the wireless charging receiving circuit.
3. wireless charging component according to claim 1, it is characterised in that the wireless charging component also includes：
Compensating electric capacity, the resonant frequency for adjusting the reception resonant network；
The compensating electric capacity is connected between the first end of first inductance coil and first capacitor plate, or, described
Compensating electric capacity is connected between the second end of first inductance coil and second capacitor plate；Or,
The compensating electric capacity is connected between the first input end of the rectification circuit and the 3rd capacitor plate, or, described
Compensating electric capacity is connected between the second input of the rectification circuit and the 4th capacitor plate, and or, the compensation electricity
Appearance is connected in parallel between the first input end of the rectification circuit and the second input of the rectification circuit.
4. a kind of wireless charging receiving coil, it is characterised in that the wireless charging receiving coil includes：
First inductance coil, the first capacitor plate and the second capacitor plate, the first end of first inductance coil and described the
One capacitor plate is electrically connected, and the second end of first inductance coil is electrically connected with second capacitor plate；
First capacitor plate is used to constitute the when aligning correct with the 3rd capacitor plate in wireless charging receiving circuit
One electric capacity, second capacitor plate is used for the 4th capacitor plate in the wireless charging receiving circuit when aligning correct
Constitute the second electric capacity；
The contraposition correctly includes：The facing area of first capacitor plate and the 3rd capacitor plate is in the first default threshold
In the range of value and pole plate spacing is in the second preset threshold range, second capacitor plate with the 4th capacitor plate just
To area in first preset threshold range and pole plate spacing is in second preset threshold range；
First inductance coil, which is used to constitute with first electric capacity, second electric capacity, receives resonant network, if described connect
Receive resonant network and meet magnetic resonance condition with transmitting resonant network, the reception resonant network is received from the transmitting resonant network
Electric energy.
5. wireless charging receiving coil according to claim 4, it is characterised in that the wireless charging receiving coil is also wrapped
Include：
Compensating electric capacity, the resonant frequency for adjusting the reception resonant network；
The compensating electric capacity is connected between the first end of first inductance coil and first capacitor plate, or, described
Compensating electric capacity is connected between the second end of first inductance coil and second capacitor plate.
6. a kind of wireless charging receiving circuit, it is characterised in that the wireless charging receiving circuit includes：
Rectification circuit, the 3rd capacitor plate and the 4th capacitor plate, the first input end of the rectification circuit and the described 3rd electricity
Hold pole plate electrical connection, the second input of the rectification circuit is electrically connected with the 4th capacitor plate；
3rd capacitor plate is used to constitute the when aligning correct with the first capacitor plate in wireless charging receiving coil
One electric capacity, the 4th capacitor plate is used for the second capacitor plate in the wireless charging receiving coil when aligning correct
Constitute the second electric capacity；
The contraposition correctly includes：The facing area of 3rd capacitor plate and first capacitor plate is in the first default threshold
In the range of value and pole plate spacing is in the second preset threshold range, the 4th capacitor plate with second capacitor plate just
To area in first preset threshold range and pole plate spacing is in second preset threshold range；
First electric capacity, second electric capacity, which are used to constitute with the first inductance coil in the wireless charging receiving coil, to be connect
Receive resonant network, if the reception resonant network meets magnetic resonance condition with transmitting resonant network, the reception resonant network from
The transmitting resonant network receives electric energy, and the rectification circuit is defeated for the electric energy to be transformed into DC current by alternating current
Go out, be that load to be charged carries out charging.
7. wireless charging receiving circuit according to claim 6, it is characterised in that the wireless charging receiving circuit is also wrapped
Include：
Compensating electric capacity, the resonant frequency for adjusting the reception resonant network；
The compensating electric capacity is connected between the first input end of the rectification circuit and the 3rd capacitor plate, or, described
Compensating electric capacity is connected between the second input of the rectification circuit and the 4th capacitor plate, and or, the compensation electricity
Appearance is connected in parallel between the first input end of the rectification circuit and the second input of the rectification circuit.
8. a kind of wireless charging adapter, it is characterised in that the wireless charging adapter includes：
One or more wireless charging receiving coil as described in claim 4 or 5.
9. wireless charging adapter according to claim 8, it is characterised in that the wireless charging adapter also includes：
Wireless charging emission source.
10. a kind of electronic equipment, it is characterised in that the electronic equipment includes：
Wireless charging receiving circuit as claimed in claims 6 or 7 and load；
Rectification circuit output end in the wireless charging receiving circuit is electrically connected with the load.
11. a kind of wireless charging system, it is characterised in that the wireless charging system includes：
Wireless charging adapter as claimed in claim 8, wireless charging emission source, and it is one or more such as claim 10
Described electronic equipment；Or,
Wireless charging adapter as claimed in claim 9 and one or more electronic equipments as claimed in claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310516792.3A CN104578222B (en) | 2013-10-28 | 2013-10-28 | A kind of wireless charging device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| ITUB20153094A1 (en) * | 2015-08-12 | 2017-02-12 | Eggtronic Eng S R L | Method and apparatus for transferring electric power and data |
| CN107658994B (en) * | 2017-11-13 | 2019-11-08 | 中车青岛四方机车车辆股份有限公司 | A kind of radio energy transmission system |
| CN107733093A (en) * | 2017-11-15 | 2018-02-23 | 哈尔滨理工大学 | A kind of Capacitance Coupled resonance type wireless energy transmission system and method |
| CN107959357A (en) * | 2017-11-29 | 2018-04-24 | 歌尔科技有限公司 | A kind of wireless charging receiving circuit, frequency adjusting method and smart machine |
| CN108297731B (en) * | 2018-03-20 | 2023-10-13 | 广东工业大学华立学院 | Wireless charging system of electric automobile |
| CN108565102B (en) * | 2018-03-28 | 2020-08-14 | 华为技术有限公司 | Coil module, wireless charging transmitting device, wireless charging receiving device, wireless charging system and wireless charging terminal |
| CN108695958A (en) * | 2018-06-05 | 2018-10-23 | 深圳市华星光电技术有限公司 | Wireless charging component and wireless charging system |
| CN109004756B (en) * | 2018-07-17 | 2021-05-07 | Oppo广东移动通信有限公司 | Wireless charging system |
| WO2020237549A1 (en) * | 2019-05-29 | 2020-12-03 | 华为技术有限公司 | Wireless power receiving circuit |
| CN112564295B (en) * | 2019-09-25 | 2023-09-08 | 华为技术有限公司 | Wireless charging system |
| CN111204238B (en) * | 2020-04-16 | 2020-07-28 | 上海纵青新能源科技有限公司 | Wireless charging alignment method and device for automobile, storage medium and terminal |
| CN113839468A (en) * | 2021-09-17 | 2021-12-24 | 许继电源有限公司 | Wireless charging coupling coil for segmented resonance of electric automobile |
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| CN102969802A (en) * | 2012-11-01 | 2013-03-13 | 重庆大学 | Current type wireless power supply system load self-adapting control method |
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| CN101752887A (en) * | 2008-12-11 | 2010-06-23 | 英明 | Wireless charging device |
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