CN109742868A - A kind of one-to-many wireless charging emitter and wireless charging method of supplying power to - Google Patents
A kind of one-to-many wireless charging emitter and wireless charging method of supplying power to Download PDFInfo
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- CN109742868A CN109742868A CN201910161535.XA CN201910161535A CN109742868A CN 109742868 A CN109742868 A CN 109742868A CN 201910161535 A CN201910161535 A CN 201910161535A CN 109742868 A CN109742868 A CN 109742868A
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Abstract
The invention belongs to wireless power technical fields, and in particular to a kind of one-to-many wireless charging emitter and wireless charging method of supplying power to.Emitter includes transmit circuit, exclusive circuit, the emission matrix of multiple transmitting units is wherein provided in the transmit circuit, each transmitting unit is by resonant network auxiliary node switch in parallel, the resonant network is formed by transmitting coil, resonant capacitance, host node switch series connection, it is realized and is connected in series by respective auxiliary node switch between the multiple transmitting unit, the host node switch allows electric current to pass through, and the auxiliary node switch allows signal to pass through.The present invention can realize that a transmitting equipment corresponds to the control mode of multiple receiving devices during wireless charging, while increase the mode of locking, and when the transmitting coil of transmitting equipment being avoided not work all, power supply system malfunction causes power supply system to be burnt.
Description
Technical field
The invention belongs to wireless power technical fields, and in particular to a kind of one-to-many wireless charging emitter and wireless
Charging method.
Background technique
Powering mode of the wireless power as safe ready can realize short distance nothing without any connection physically
Electric energy is transferred to load by contact, during wireless charging, needs to adjust the size of electric current in transmitting coil, control coil
The size of electric current is certain value, and receiving end can be realized by the way of series resonance and is powered to different loads.Mesh
It is usually one or more as the receiving end for receiving electric energy in preceding wireless charging system, and the transmitting terminal for emitting electric energy is then only deposited
At one, and most of that take is all transmitting equipment one receiving device " one-to-one " mode of correspondence, Ke Yiman
Power supply of the foot to current receiving device.If necessary to charge simultaneously to multiple receiving devices, then can not by a transmitting equipment
It realizes, it is necessary to which multiple transmitting equipment are set, and being also the mode for emitting the corresponding accepting device of equipment could be real
Now to the charging of each accepting device.Although such power supply mode can embody the advantage of wireless power, for one-to-one
Unlimited powering mode for, multiple transmitting equipment, higher cost are set, and feeder ear the space occupied is big.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of one-to-many wireless charging emitter and wireless charging
Method of supplying power to can realize that a transmitting equipment corresponds to the control mode of multiple receiving devices, simultaneously during wireless charging
The mode for increasing locking, when the transmitting coil of transmitting equipment being avoided not work all, power supply system malfunction leads to power supply system
It burns.
To achieve the above object, the present invention is achieved by the following technical solutions:
The present invention provides a kind of one-to-many wireless charging emitter, is characterized in that
It is provided with transmit circuit in the emitter, wherein being provided with the transmitting of multiple transmitting units in the transmit circuit
Matrix, each transmitting unit are made of a resonance circuit, and the resonance circuit is by transmitting coil, resonant capacitance, host node
Switch series connection is formed, and is connected in series to form resonant network between the multiple resonance circuit.
Further, the transmitting coil of each transmitting unit is identical with the intrinsic frequency of resonant capacitance.
Further, high frequency constant current output unit, the high frequency constant current output unit are additionally provided in the transmit circuit
Output end and emission matrix input terminal between be connected with electric current detecting coil.
Further, each resonance circuit is parallel with auxiliary node switch, passes through auxiliary between multiple resonance circuits
Node Switch carries out being connected in series to form resonant network.
Further, after multiple auxiliary node switch series connection, it is connected with photoelectrical coupler by limiting resistance R1, passes through light
Electric coupler output signal.
The present invention provides a kind of one-to-many wireless charging method of supplying power to, is characterized in that
It connects to form resonant network using multiple resonance circuits, when multiple resonance circuits are also turned on, to multiple receiving devices
Or the part receiving device in multiple receiving devices carries out wireless power simultaneously.
Further, each resonance circuit is parallel with auxiliary node switch respectively, passes through control auxiliary node switch
On-off is realized to the part receiving device in multiple receiving devices or multiple receiving devices while carrying out wireless power.
Further, multiple auxiliary node switch series connection access photoelectrical coupler to the auxiliary node switch after series connection,
Multiple auxiliary nodes switch under equal closed state, are to judge wireless charging emitter according to the signal that photoelectrical coupler generates
It is no to be in blocking.
Compared with prior art, the present invention it has the beneficial effect that the present invention can be realized a transmitting equipment to multiple
The power supply of receiving device, plurality of receiving device can charge simultaneously or charge to part receiving device therein.
System malfunction causes system to be burnt when not working all in order to avoid transmitting coil simultaneously, joined the side of locking in the present invention
Formula.In the present invention by do not need transmission power resonant network it is corresponding close the switch, reduce magnetic field to environment
It influences, improves the overall efficiency of system, reduce the cost of power supply system.
Detailed description of the invention
Fig. 1 is transmit circuit the general frame of the invention；
Fig. 2 is the general frame of emission matrix in transmit circuit in Fig. 1；
Fig. 3 is the operation principle schematic diagram that the present invention has blocking function.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
One step it is described in detail.
Embodiment 1
It is humorous using connecting in receiving end by controlling the size of electric current in transmitting coil in transmitting terminal during wireless charging
The mode of vibration can be realized to be powered to different loads, the application transmitting terminal take be also series resonance mode into
Row wireless power.It is main in the present embodiment to realize how a transmitting equipment sets to multiple receiving devices or multiple receptions simultaneously
Part receiving device power supply in standby.
Emitter is as transmitting terminal in the present embodiment, be provided with high frequency constant current output unit, electric current detecting coil with
And the transmit circuit that emission matrix is formed, wherein the output end of high frequency constant current output unit is connected by electric current detecting coil and is emitted
The output of the input terminal of matrix, the application high frequency constant current output unit is constant current, and high frequency constant current output unit is according to current detecting
The signal of coil feedback determines whether electric current output reaches desired value, it is contemplated that value is then to wish the size of current exported, if reached
Size of current less than anticipated output just increases output electric current by way of continuing boosting.If it exceeds the electric current of anticipated output
Size just passes through decompression and reduces output electric current.
Emission matrix is power output part, passes through multiple transmitting units series connection shape in the present embodiment for emission matrix
At, such as it is provided with N number of transmitting unit, wherein the value of N is 1,2 ... n, and each transmitting unit is interior by a series circuit
Composition, each resonance circuit are formed by transmitting coil, resonant capacitance, host node switch series connection, and n resonance circuit connects to form string
Join resonant network, the transmitting coil of each resonance circuit and the intrinsic frequency of resonant capacitance are all the same in transmitting unit, are denoted as
ω。
Such as Fig. 2, it is provided with n resonance circuit, by taking resonance circuit 1 as an example, including a transmitting coil L1, a resonance electricity
Hold C1, a host node switch S1, L1, C1, S1 connect, similar with this, each resonance circuit connection type thus, Zhi Houxie
Shake circuit 1, resonance circuit 2, until resonance circuit n connects to form resonant network.
When carrying out wireless power, corresponding receiving end is corresponding with for each resonance circuit, n reception is corresponding with and sets
It is standby, it is closed the host node switch of each resonance circuit, all resonance circuits in resonant network are in working condition, realization pair
N receiving device carries out wireless power simultaneously.
Wireless power can also be carried out simultaneously to the part receiving device in n receiving device for the present embodiment, still
At least there is a resonance circuit in running order, idle resonant element is equivalent to the network from entire transmit circuit
Middle deletion.With reference to Fig. 2, such as there are 3 resonance circuits, after first closes the switch, there are also the hairs of subsequent two resonance circuits
Penetrating transmitting is in circuit.
Embodiment 2
It is realized in embodiment 1 and wireless power base is carried out simultaneously to the part receiving device in n receiving device or n receiving device
On plinth, increases auxiliary node switch and photoelectrical coupler, there is blocking function at the same time, transmitting coil is avoided not work all
When system malfunction cause system to be burnt.
The auxiliary node switch in parallel in each resonance circuit, such as Fig. 2, the auxiliary section in parallel in resonance circuit 1
Point switch K1, similar with this, until auxiliary node switch Kn in parallel in resonance circuit n, by K1 to Kn series connection, host node is opened
Close has high current to flow through in closure, and auxiliary node switch is signal node, uses for being latched, is not involved in resonance.
Auxiliary node switch can detecte whether the auxiliary contact switch is closed with auxiliary contact, and this makes it possible to need
The corresponding host node switch of the resonance circuit of transmission power is wanted to disconnect, the corresponding main section of resonant network for not needing transmission power
Point switches closure, to reduce system cost, and the corresponding host node of the resonant network for not needing transmission power is opened
Pass closes the switch, and reduces influence of the magnetic field to environment, improves the overall efficiency of power supply system.
For example, such as needing 5 resonance circuit work, it is only necessary to by the master of n-5 resonance circuit for n resonance circuit
It is equivalent to after Node Switch closure and corresponding resonance circuit is deleted from entire transmit circuit.
It is connected with photoelectrical coupler formation exclusive circuit by limiting resistance R1 after n auxiliary node switch series connection, is passed through
Photoelectrical coupler output signal.When all auxiliary node switch all lockings, there is electric current to flow through in optocoupler, in Fig. 3
SIGNAL signal be it is low, do not allow to emit at this time.
When in use, the auxiliary node of auxiliary node switch is identical as the host node position of the switch, is normally opened node, works as master
When Node Switch is closed, auxiliary node switch is closed at.
Auxiliary node switch can detecte whether the switch is closed with auxiliary contact, thus needing transmission power
The corresponding switch of resonant network disconnects, and closes the switch the resonant network for not needing transmission power is corresponding.
When leading to all close the switch due to factors such as external interferences, function at this time can be issued without resonant element
Rate.Since all auxiliary nodes are also closed, signal signal is lower by height, and what this signal can be used as transmission power forbids letter
Number, improve the safety of system.That is when all corresponding host node switches are all closed, it is equivalently employed without resonant network
Work, transmit circuit short circuit, at this time must have signal detection.Generating signal with photoelectrical coupler is exactly to be used to indicate whether
All switches are all closed, if short circuit.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment includes
One independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should incite somebody to action
As a whole, the technical solutions in the various embodiments may also be suitably combined for specification, and forming those skilled in the art can
With the other embodiments of understanding.
Claims (8)
1. a kind of one-to-many wireless charging emitter, it is characterised in that:
It is provided with transmit circuit in the emitter, wherein being provided with the transmitting of multiple transmitting units in the transmit circuit
Matrix, each transmitting unit are made of a resonance circuit, and the resonance circuit is by transmitting coil, resonant capacitance, host node
Switch series connection is formed, and is connected in series to form resonant network between the multiple resonance circuit.
2. a kind of one-to-many wireless charging emitter as described in claim 1, it is characterised in that:
The transmitting coil of each transmitting unit is identical with the intrinsic frequency of resonant capacitance.
3. a kind of one-to-many wireless charging emitter as claimed in claim 2, it is characterised in that:
High frequency constant current output unit, the output end of the high frequency constant current output unit and transmitting are additionally provided in the transmit circuit
Electric current detecting coil is connected between the input terminal of matrix.
4. a kind of one-to-many wireless charging emitter as claimed in claim 3, it is characterised in that:
Each resonance circuit is parallel with auxiliary node switch, is gone here and there between multiple resonance circuits by auxiliary node switch
Connection connection forms resonant network.
5. a kind of one-to-many wireless charging emitter as claimed in claim 4, it is characterised in that: multiple auxiliary nodes are opened
After closing series connection, it is connected with photoelectrical coupler by limiting resistance R1, passes through photoelectrical coupler output signal.
6. a kind of one-to-many wireless charging method of supplying power to, it is characterised in that:
It connects to form resonant network using multiple resonance circuits, when multiple resonance circuits are also turned on, to multiple receiving devices
Or the part receiving device in multiple receiving devices carries out wireless power simultaneously.
7. a kind of one-to-many wireless charging method of supplying power to as claimed in claim 6, it is characterised in that:
Each resonance circuit is parallel with auxiliary node switch respectively, is switched on-off by control auxiliary node to realize to more
Part receiving device in a receiving device or multiple receiving devices carries out wireless power simultaneously.
8. a kind of one-to-many wireless charging method of supplying power to as claimed in claim 7, it is characterised in that:
Multiple auxiliary node switch series connection, to the auxiliary node switch access photoelectrical coupler after series connection, in multiple auxiliary nodes
It switchs under equal closed state, judges whether wireless charging emitter is in latch like according to the signal that photoelectrical coupler generates
State.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910161535.XA CN109742868A (en) | 2019-03-04 | 2019-03-04 | A kind of one-to-many wireless charging emitter and wireless charging method of supplying power to |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910161535.XA CN109742868A (en) | 2019-03-04 | 2019-03-04 | A kind of one-to-many wireless charging emitter and wireless charging method of supplying power to |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313564A (en) * | 2020-02-18 | 2020-06-19 | 湖南大学 | Wireless power transmission system of underwater unmanned underwater vehicle and control method |
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