CN206353727U - Point-to-point wireless power coil coupling model and point-to-point wireless power supply system - Google Patents
Point-to-point wireless power coil coupling model and point-to-point wireless power supply system Download PDFInfo
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- CN206353727U CN206353727U CN201620670826.3U CN201620670826U CN206353727U CN 206353727 U CN206353727 U CN 206353727U CN 201620670826 U CN201620670826 U CN 201620670826U CN 206353727 U CN206353727 U CN 206353727U
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
- H01F2038/146—Inductive couplings in combination with capacitive coupling
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Abstract
This application discloses a kind of point-to-point wireless power coil coupling model and point-to-point wireless power supply system, wherein, the point-to-point wireless power coil coupling model includes：Launch resonant ring and receive resonant ring；In the point-to-point wireless power coil coupling model transmitting resonant ring with it is described reception resonant ring it is coupled to each other and it is described transmitting resonant ring resonant frequency with it is described receive resonant ring resonant frequency it is identical, i.e. described transmitting resonant ring and the reception resonant ring are under magnetic resonance state, and the transmitting resonant ring and reception resonant ring under magnetic resonance state can improve the efficiency of transmission during wireless power.
Description
This application claims submit Patent Office of the People's Republic of China, Application No. 201610122657.4, invention name on March 4th, 2016
The referred to as priority of the Chinese patent application of " coupling model of point-to-point wireless power resonance coil ", entire contents are by drawing
With being incorporated in the present application.Other the application also requires to submit Patent Office of the People's Republic of China, Application No. on March 4th, 2016
201620165451.5th, the domestic applications of utility model entitled " coupling model of point-to-point wireless power resonance coil " is excellent
First weigh, entire contents are hereby incorporated by reference in the application.
Technical field
The application is related to wireless power technical field, is coupled more specifically to a kind of point-to-point wireless power coil
Model and point-to-point wireless power supply system.
Background technology
Wireless power refers to the electric energy transmission means contacted by non-physical, is after wireless telecommunications, wireless network
Third time Wireless revolution, a frontier science and technology with base application meaning are considered as by industry.Wireless power technology is from 2007
Year has been born since laboratory, by the optimization of several years, has been able on probation in mobile phone wireless charging and automobile wireless charging.
Wireless power technology of the prior art is based primarily upon electromagnetic induction principle, and transmitting coil is produced in surrounding space
Alternating magnetic field B, the magnetic field of change induces induction field E again, and this process is provided by Maxwell equation：Passing
During defeated, receiving coil is in the ring electric field that alternating magnetic field B is induced, and obtains induced electromotive force ε (i.e. open-circuit voltage),
This is relevant with the change of the magnetic flux through the receiving coil：So far electric energy is completed from the transmitting
The process that coil is wirelessly transferred to the receiving coil.
But the efficiency of transmission that the wireless power technology of electric energy transmission is carried out based on traditional magnetic induction principle is relatively low so that
The wireless power technology is difficult to the requirement for meeting practical application.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of point-to-point wireless power coil coupling model and point
To a wireless power supply system, to realize the purpose of the efficiency of transmission during raising wireless power.
To realize above-mentioned technical purpose, the utility model embodiment provides following technical scheme：
A kind of point-to-point wireless power coil coupling model, including：Launch resonant ring and receive resonant ring；Wherein,
The transmitting resonant ring includes the first electric capacity and at least two emission lines with the first electric capacity serial or parallel connection
Circle；
The resonant ring that receives includes the second electric capacity and receives line with least two of the second electric capacity serial or parallel connection
Circle；
The transmitting resonant ring and the reception resonant ring are coupled to each other, and resonant frequency and the institute of the transmitting resonant ring
The resonant frequency for stating reception resonant ring is identical.
It is preferred that, the transmitting coil and the receiving coil are close type coil or loose type coil.
It is preferred that, in addition to：First magnetic core and the second magnetic core；
First magnetic core is used for the magnetic flux density for lifting at least two transmitting coil；
Second magnetic core is used for the magnetic flux density for lifting at least two receiving coil.
It is preferred that, first magnetic core is bar-shaped magnet, is arranged at the transmitting coil away from the receiving coil side；
Second magnetic core is bar-shaped magnet, is arranged at the receiving coil away from the transmitting coil side.
It is preferred that, first magnetic core is U-shaped magnet, is set around the transmitting coil；
Second magnetic core is U-shaped magnet, is set around the receiving coil.
It is preferred that, at least two transmitting coil is in same plane；
At least two receiving coil be in same plane, and at least two receiving coil where plane with it is described
Plane where at least two transmitting coils is parallel to each other.
It is preferred that, plane where each transmitting coil is parallel with a receiving coil plane, and it is described at least
Two transmitting coils are not at same plane.
It is preferred that, the point-to-point wireless power coil coupling model also includes：First U-shaped magnetic core；
The resonant ring that receives includes the second electric capacity, two receiving coils with the second electric capacity serial or parallel connection, institute
State the anti-phase concatenation of two receiving coils；
The transmitting resonant ring includes the first electric capacity, two transmitting coils with the first electric capacity serial or parallel connection, institute
State the anti-phase concatenation of two transmitting coils；
The first U-shaped magnetic core is used to lift described two transmitting coils and the magnetic flux of described two receiving coils is close
Degree.
It is preferred that, the transmitting coil is oval coil or trapezoidal coil or square coil or triangular coils or semicircle
Shape coil；
The receiving coil is oval coil or trapezoidal coil or square coil or triangular coils or semicircular.
A kind of point-to-point wireless power supply system, including：Wireless power transmitter and wireless power receiver；Wherein, it is described
The point-to-point wireless power line as described in above-mentioned any embodiment is provided with wireless power transmitter and wireless power receiver
Enclose coupling model.
It is preferred that, in addition to answer back code dispensing device and multiple identification code dispensing devices；Wherein,
The quantity of the multiple identification code dispensing device and the transmitting in the point-to-point wireless power coil coupling model
Number of coils is identical, and each identification code dispensing device and a transmitting coil are bound, for sending identification code, and
The transmitting coil that control is bound with it after the answer back code that the answer back code dispensing device is sent is received is started working；
The answer back code dispensing device is bound with the receiving coil in the point-to-point wireless power coil coupling model, is used
In sending answer back code after the identification code is received.
It can be seen from the above technical proposal that the utility model embodiment provides a kind of point-to-point wireless power coil coupling
Matched moulds type and point-to-point wireless power supply system, wherein, the transmitting resonant ring in the point-to-point wireless power coil coupling model
Resonant ring coupled to each other is received with described and the resonant frequency for launching resonant ring and the resonant frequency of the reception resonant ring
Identical, i.e., described transmitting resonant ring and the reception resonant ring are under magnetic resonance state, and the hair under magnetic resonance state
The efficiency of transmission during wireless power can be improved by penetrating resonant ring and receiving resonant ring.Because being wirelessly transferred in electric energy
During energy density S determined (S=E × H) by the electric-field intensity E and magnetic field intensity H of induction field, and resonant process then can times
Increase loop current, strengthen the induction field in space and magnetic field, so as to greatly promote energy-flux density S, and then lift electric energy in nothing
Efficiency of transmission in line transmitting procedure；And magnetic resonance can well attract and assemble the magnetic line of force of surrounding effectively to capture
More electromagnetic energies, and then further efficiency of transmission of the lifting electric energy during being wirelessly transferred.
At least two transmittings due to the transmitting resonant ring by the first electric capacity and with the first electric capacity serial or parallel connection
Coil is constituted, and the resonance in LC loops is beneficial to the higher harmonic components for filtering out input signal well, so improves biography
Defeated efficiency, can reduce high frequency spurs radiation, reduce the electromagnetic pollution to environment again, meet very much environmental protection reason now
Read.
And have extremely due to having in the reception resonant ring at least two receiving coils, and the transmitting resonant ring
Few two transmitting coils so that the electric energy that the reception resonant ring is received is evenly distributed and the transmitting resonant ring hair inside it
The electric energy sent is evenly distributed inside it, so as to reduce caloric value；And the composition of multiple receiving coils make it that the reception is humorous
The scope that the ring that shakes can sense the induction field that the transmitting resonant ring is produced becomes big, and accordingly, the composition of multiple transmitting coils makes
Transmitting resonant ring scope that electric energy can be transmitted becomes big, so as to reduce the transmitting resonant ring and the reception resonance
The coupling accuracy requirement of ring, the site error of the transmitting resonant ring allowed in other words and the reception resonant ring increases, drop
The low design requirement of the point-to-point wireless power coil coupling model.
Further, can be by inciting somebody to action in the actual application of the point-to-point wireless power coil coupling model
Constitute one or more of at least two receiving coils for receiving resonant ring receiving coil and list is carried out in the way of bypassing
The switching of individual receiving coil working condition, or at least two transmitting coils by the transmitting resonant ring is constituted can also be passed through
One or more of transmitting coil the switching of single transmitting coil working condition is carried out in the way of bypassing, so as to realize output
The grading control of power, and then make it that the scope of application of the point-to-point wireless power coil coupling model is more extensive.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
A kind of point-to-point wireless power coil coupling model that Fig. 1 (a) and (b) provide for one embodiment of the application
Connection diagram；
The model schematic for the LC concussions that Fig. 2 provides for the embodiment of the present application；
Fig. 3 and Fig. 4 is the curve synoptic diagram of two kinds of representations of Q values in magnetic resonance resonant tank；
Resonance curve when Fig. 5 (a) is parallel resonance；
Resonance curve when Fig. 5 (b) is series resonance；
Fig. 6 is the impedance operator that resonant ring parallel connection method is shown；
Fig. 7 is the impedance operator that resonant ring tandem-type connection is shown；
Fig. 8 is the magnetization curve of soft magnetic materials；
Fig. 9 and Figure 10 is the schematic diagram of two kinds of set-up modes of magnetic core；
The connection of transmitting coil in the twin coil dipole model that Figure 11 (a) provides for the specific embodiment of the application
Schematic diagram；
The connection of receiving coil in the twin coil dipole model that Figure 11 (b) provides for the specific embodiment of the application
Schematic diagram；
Figure 12 (a) be twin coil dipole model in receiving coil along X-direction move when connecting curve；
Figure 12 (b) be twin coil dipole model in receiving coil along Y direction move when connecting curve；
Figure 13 is inductance value schematic diagram in twin coil dipole model；
Figure 14 is the set-up mode schematic diagram of the first U-shaped magnetic core in twin coil dipole model；
Figure 15 (a) and (b) include two receiving coils and two transmittings for what the specific embodiment of the application was provided
The connection diagram of the point-to-point wireless power coil coupling model of coil
Figure 16 includes the point-to-point of two receiving coils and two transmitting coils for what one embodiment of the application was provided
The position relationship schematic diagram of wireless power coil coupling model；
Figure 17 includes the point pair of two receiving coils and two transmitting coils for what another embodiment of the application was provided
The position relationship schematic diagram of point wireless power coil coupling model；
Figure 18 for the specific embodiment of the application provide after three sub- resonant rings are connected with full bridge rectifier
The connected mode schematic diagram for the reception resonant ring that series connection is formed；
Figure 19 for the specific embodiment of the application provide after three sub- resonant rings are connected with full bridge rectifier
The connected mode schematic diagram for the reception resonant ring that parallel connection is formed；
Figure 20 is the output characteristic curve of the reception resonant ring connected as shown in figure 18；
Figure 21 is the output characteristic curve of the reception resonant ring connected as shown in figure 19；
The circuit diagram for three kinds of wireless power transmitters that Figure 22,24 and 26 provide for the embodiment of the present application；
Figure 23 (a) is the schematic diagram of the direct current supply waveform of wireless power transmitter as shown in figure 22；
Figure 23 (b) is the schematic diagram of the transmission output waveform of wireless power transmitter as shown in figure 22；
Figure 25 (a) is the schematic diagram of the direct current supply waveform of wireless power transmitter as of fig. 24；
Figure 25 (b) is the schematic diagram of the transmitting output waveform of wireless power transmitter as of fig. 24；
Figure 27 (a) is the schematic diagram of the direct current supply waveform of wireless power transmitter as shown in figure 26；
Figure 27 (b) is the schematic diagram of the transmitting output waveform of wireless power transmitter as shown in figure 26；
Figure 28 is wireless power transmitter output duty cycle schematic diagram；
The structural representation for two kinds of feasible wireless power receivers that Figure 29 and 30 provides for the embodiment of the present application；
A kind of identification transmission schematic diagram for point-to-point wireless power supply system that Figure 31 provides for one embodiment of the application.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
The embodiment of the present application provides a kind of point-to-point wireless power coil coupling model, such as Fig. 1 (a) and Fig. 1 (b) institutes
Show, including：Launch resonant ring and receive resonant ring；Wherein,
The transmitting resonant ring includes the first electric capacity C1 and at least two hairs with the first electric capacity C1 serial or parallel connections
Ray circle (L11, L12 ... L1N)；
The reception resonant ring includes the second electric capacity C2 and connect with least two of the second electric capacity C2 serial or parallel connections
Take-up circle (L21, L22 ... L2N)；
The transmitting resonant ring and the reception resonant ring are coupled to each other, and resonant frequency and the institute of the transmitting resonant ring
The resonant frequency for stating reception resonant ring is identical.
Fig. 1 (a) is at least two receiving coil and the second electric capacity C2 reception resonant rings in series
Structural representation；Fig. 1 (b), which is that at least two receiving coil is in parallel with the second electric capacity C2, constitutes the reception resonance
The structural representation of ring.Accordingly, at least two transmitting coil is in series or in parallel to form described with the first electric capacity C1
The mode for launching resonant ring is in series or in parallel to form the reception with least two receiving coil with the second electric capacity C2
The mode of resonant ring is similar, and the application will not be described here.
It should be noted that in this application, we are defined as below：
1st, according to the difference of winding method, coil can be divided into loose type coil and close type coil by we, if line
There is space between each circle coiling in circle, then be called loose type coil；, whereas if each circle in coil is adjacent
Coiling is all close to, and is called close type coil.In this application, the transmitting coil and the receiving coil can be described
Close type coil, or the loose type coil.Specific kind of the application to the transmitting coil and the receiving coil
Class is not limited, specifically depending on actual conditions.
2nd, the transmitting resonant ring mode coupled to each other with the reception resonant ring can couple to be unilateral, can also be
Periphery is coupled；Wherein, the unilateral coupling refers to the coupling that one side of the transmitting coil and one side of the receiving coil are pressed close to
Conjunction mode；The periphery coupling refers to the coupling side that the surrounding of the transmitting coil and the surrounding of the receiving coil are pressed close to
Formula.The application concrete mode coupled to each other with the reception resonant ring to the transmitting resonant ring is not limited, and is specifically regarded
Depending on actual conditions.
3rd, the transmitting resonant ring and the reception resonant ring belong to resonant ring in this application, refer to by electric capacity and electricity
Feel and there is series resonance in the loop structure being in series or in parallel to form, resonant ring in series, in the resonant ring that parallel connection is constituted
There is parallel resonance；At least two resonant rings in wireless power supply system, one is exactly the transmitting resonant ring, and another is exactly
The reception resonant ring.
4th, equivalent coil refers to the coil being in series or in parallel to form by two or more coils in this application, it
Can be equivalent transmitting coil or equivalent received coil；The first electric capacity and the second electric capacity in this application can in addition
To refer to single electric capacity, the capacitance structure being in series or in parallel to form by two or more single electric capacity can also be referred to；
If the 5th, only one of which transmitting resonant ring and a reception resonant ring in a wireless power supply system, this is wireless
Electric power system is referred to as point-to-point wireless power supply system；It is as defined above, if transmitting resonant ring is by an equivalent transmitting coil
Be in series or in parallel to form with an equivalent capacity, receive resonant ring by an equivalent received coil and the series connection of equivalent capacity or
Parallel connection is constituted, and the wireless power supply system being made up of the two resonant rings falls within point-to-point wireless power supply system.
It should also be noted that, in embodiments herein, the transmitting resonant ring under magnetic resonance state with
The reception resonant ring meets following condition：
The product of the first electric capacity C1 of transmitting resonant ring capacity and the inductance value of the transmitting coil is constituted, is equal to
The product of the equivalent electric sensibility reciprocal of receiving coil described in the capacity and at least two of the second electric capacity C2 for receiving resonant ring is constituted,
This product is we term it LC constants, i.e.,：L1 × C1=L2 × C2=J=1/ ω2, wherein, L1 is at least two emission lines
The equivalent electric sensibility reciprocal of circle, L2 is the equivalent electric sensibility reciprocal of receiving coil described at least two, and J represents the LC constants, and ω represents institute
State the resonance angular frequency of transmitting resonant ring or the reception resonant ring.
We are analyzed electric energy transmission (electric energy under magnetic resonance state is transmitted) process under LC resonant conditions below：
Characteristic of the capacitor under magnetic resonance state：Wherein,icRepresent to pass through the electricity
The equivalent current of container；U represents the voltage at capacitor two ends；Q is the electricity that capacitor is stored；
Characteristic of the inductor under magnetic resonance state：Wherein, φ represents magnetic flux；i
Represent the electric current by the inductor；ucRepresent inductor both end voltage；
As shown in Fig. 2 when capacitor C is connected with inductor L two ends：(it is assumed to be a preferable closed state, initially
Condition：T=0, uc=U0, U0For the voltage for the radiating circuit that electric energy is provided to the transmitting resonant ring；)
ic=iL=i；Then obtain：
uc+uL=0 (t=0, uc=U0)
The solution of this differential equation is resonance function：
ic-iL=0
Likewise, the equation that can obtain electric current is：
The solution of gained is：iL(t)=U0Cω0sin(ω0t)。
Energy exchange is carried out between capacitor C and inductor L：Energy is in the form of electric field when voltage (absolute value) is maximum
It is stored in capacitor C；Energy is in the form of magnetic field to be stored in inductor L when voltage is zero, and now electric current (absolute value) is most
Greatly；The phase difference of electric current and voltage is 1/2 π.Each charging-discharging cycleIn have the conversion of four energy：Wherein, WCRepresent the energy in capacitor C；WLRepresent in inductor L
Energy；C represents capacitor C capacity, and L represents inductor L inductance value.
In real work, radiating circuit be continuously it is described transmitting resonant ring resonant tank provide energy, with supplement because
Outflow is lost and the electric energy of reduction, maintains stable LC concussions.The resonant frequency for receiving resonant ring and the transmitting are humorous
Shake ring resonant frequency it is identical, it is described transmitting resonant ring produce alternating electromagnetic field in, be capable of the absorption electromagnetism of amplitude peak
Energy and cause simultaneous resonance (i.e. magnetic resonance), and can also it is described reception resonant ring in take out enough electric energy for load
Power supply, and launched the alternating electromagnetic field that resonant ring is provided since receiving the maintenance concussion then in loop.There are some researches show because of same frequency magnetic
The electric energy chain for resonating and maintaining spatially has bigger work accommodation scope.
And the transmitting resonant ring and reception resonant ring under magnetic resonance state can be improved during wireless power
Efficiency of transmission.Because energy density S is strong by the electric-field intensity E of induction field and magnetic field during being wirelessly transferred of electric energy
Spend H and determine (S=E × H), and resonant process can then double loop current, strengthen the induction field in space and magnetic field, so that greatly
Big lifting energy-flux density S, and then lift efficiency of transmission of the electric energy during being wirelessly transferred；And magnetic resonance can inhale well
Draw and assemble the magnetic line of force of surrounding so as to effectively capture more electromagnetic energies, and then further lifting electric energy is being wirelessly transferred
During efficiency of transmission.
Due to it is described transmitting resonant ring by the first electric capacity C1 and with the first electric capacity C1 serial or parallel connections at least two
Transmitting coil is constituted, and the resonance in LC loops is beneficial to the higher harmonic components for filtering out input signal well, is so improved
Efficiency of transmission, can reduce high frequency spurs radiation, reduce the electromagnetic pollution to environment, meet very much green ring now again
Factoring is read.
And have extremely due to having in the reception resonant ring at least two receiving coils, and the transmitting resonant ring
Few two transmitting coils so that the electric energy that the reception resonant ring is received is evenly distributed and the transmitting resonant ring hair inside it
The electric energy sent is evenly distributed inside it, so as to reduce caloric value；And the composition of multiple receiving coils make it that the reception is humorous
The scope that the ring that shakes can sense the induction field that the transmitting resonant ring is produced becomes big, and accordingly, the composition of multiple transmitting coils makes
Transmitting resonant ring scope that electric energy can be transmitted becomes big, so as to reduce the transmitting resonant ring and the reception resonance
The coupling accuracy requirement of ring, the site error of the transmitting resonant ring allowed in other words and the reception resonant ring increases, drop
The low design requirement of the point-to-point wireless power coil coupling model.
Further, can be by inciting somebody to action in the actual application of the point-to-point wireless power coil coupling model
The mode of one or more of described at least two receiving coils for receiving resonant ring of composition receiving coil bypass carries out single
The switching of receiving coil working condition, or can also be by by least two transmitting coils for constituting the transmitting resonant ring
One or more transmitting coils the switching of single transmitting coil working condition is carried out in the way of bypassing, so as to realize output work
The grading control of rate, and then make it that the scope of application of the point-to-point wireless power coil coupling model is more extensive.
On the basis of above-described embodiment, in the preferred embodiment of the application, the point-to-point wireless power line
Circle coupling model also includes：First magnetic core and the second magnetic core；
First magnetic core is used for the magnetic flux density for lifting at least two transmitting coil；
Second magnetic core is used for the magnetic flux density for lifting at least two receiving coil.
It should be noted that for magnetic resonance resonant tank (for the reception resonant ring), such as
Shown in Fig. 3, the increase of Q values can also be obviously improved electric energy efficiency of transmission, and Q=ω L/R, wherein R are the equivalent electric in resonant tank
Resistance, includes the summation of D.C. resistance and various A.C.power loss, typically in (the LC=1/ ω when ω is constant2) can be by increasing electricity
Sense L lifts Q values with reduction capacitance C method.As shown in figure 4, Q values are also denoted as：Q=ω0/ 2 △ ω, its
In, ω0Resonant frequency is represented, requires that inductance L and capacitance C product accuracy is just high (such as in parallel humorous when Q values are larger
Shake), require that inductance L and capacitance C product precision is just low (such as series resonance) when Q values are smaller.
At parallel resonance (connection), shown in such as Fig. 5 (a), because transmission of electricity (transmitting) is connected to power taking (reception) circuit
Coil two ends, very little are damped in short arc, the Q values of resonant tank will be very high；And (transmitting terminal) is inputted (to receive with output
End) damping it is also larger.Required precision simultaneously to the resonant capacitance value in resonant tank is also higher (within ± 5%).
At series resonance (connection), shown in such as Fig. 5 (b), due to radiating circuit and receiving circuit and resonant tank etc.
Imitate loss resistance series connection, its Q value is substantially reduced (typically below 5), transmitting terminal input impedance and receiving terminal output impedance compared with
It is small；Series resonance can be selected in Low ESR application, show as resonant capacitance value it is insensitive to resonance amplitude (tolerance is reachable ±
20%).
Therefore can be according to the different electrical parameter characteristics for receiving load, to select the company of proper transmitting resonant ring
Connect mode and receive the connected mode (serial or parallel connection) of resonant ring, the wireless power demand of various equipment can be met.
Impedance operator that the parallel connection method of resonant ring (resonance coil and electric capacity) is shown as shown in fig. 6, resonance coil and
The impedance operator that the tandem-type connection of electric capacity is shown is as shown in Figure 7；It can be seen from figures 6 and 7 that being needed in zero load special
Note considering the impedance operator that resonance coil and electric capacity are shown, either as transmitting terminal or receiving terminal, parallel resonance
The low impedance characteristic that high-impedance behavior and series resonance are shown provides alternative for practical application：Less than resonance frequency
Rate ω0When all show as capacitive, all show as perception during higher than resonant frequency, but the resonant ring of parallel connection method and tandem-type connection
Impedance rate of change is opposite.
Because the magnetic permeability μ of magnetic material (such as ferrite)rTypically all more than 1000, so magnetic core can be by coil
Magnetic flux density B (B=μ H=μ0μrH) being promoted to thousand times, (magnetic field intensity H is unrelated with medium, μrFor dielectric permeability, μ0For vacuum
Middle magnetic conductivity), the magnetic line of force that magnetic core can largely in collection space reduces magnetic resistance, improves power capacity.
Magnetic flux density B increase causes magnetic flux to increase (φ=∫s), therefore inductance L BdsAlso increase therewith
Add, this is conducive to the size for reducing inductance coil, is conducive to reducing the chi of the point-to-point wireless power coil coupling model
It is very little, realize the miniaturization of the point-to-point wireless power coil coupling model.
During the wireless power of relatively high power (more than 100W), (equipment can be significantly reduced to improve power density
Volume), the method that the magnetic flux density of inductance coil (transmitting coil and receiving coil) can be lifted by using magnetic core.This
Sample can have greatly improved to the efficiency of transmission of wireless power, and add the inductance value of inductance coil, improve its Q
Value, makes the coefficient of coup also further increase, usually using the method for setting iron core in powerful application.
But the working condition and scope of inductance coil (receiving coil or transmitting coil) are should be noted during using magnetic core, keep away
Exempt from inductance coil and enter saturation region, as shown in figure 8, the inductance of the inductance coil in saturation region is nonlinear, i.e. inductance value
It can change, so as to cause operation irregularity (such as heating, power reduction).The occurrence of magnetic saturation, tests mainly due to magnetic core
It is improper, will now there is obvious magneto-striction phenomenon, and produce hazardous noise and mechanical oscillation.
In this application, the mode of magnetic core is set mainly to divide three types, the first is as shown in figure 9, first magnetic core
For bar-shaped magnet, the transmitting coil is arranged at away from the receiving coil side；
Second magnetic core is bar-shaped magnet, is arranged at the receiving coil away from the transmitting coil side.
This set method is mainly used in the wireless power transmission system of smaller power, is so provided with two mainly
Effect：One is to shield the magnetic field of coil side by magnetic conductance principle so as to realize that the energy of orientation is transmitted, and is had to efficiency of transmission
Very big lifting；Two be the inductance value that first magnetic core and the second magnetic core add the receiving coil and the transmitting coil,
Q values are improved, the coefficient of coup between them is also further increased, this is usually used during powerful wireless power
Plant magnetic core method to set up.
Second as shown in Figure 10, and first magnetic core is U-shaped magnet, is set around the transmitting coil；
Second magnetic core is U-shaped magnet, is set around the receiving coil.
This iron core method to set up is mainly used in high-power wireless power transmission system, and U-shaped magnet can increase institute
The magnetic flux density of transmitting coil and the receiving coil is stated, so as to improve transimission power.
The third is mainly used in twin coil dipole model, and the first U-shaped magnetic core is also included in this model；
The resonant ring that receives includes the second electric capacity, two receiving coils with the second electric capacity serial or parallel connection, institute
State the anti-phase concatenation of two receiving coils；
The transmitting resonant ring includes the first electric capacity, two transmitting coils with the first electric capacity serial or parallel connection, institute
State the anti-phase concatenation of two transmitting coils；
The connected mode of the described two anti-phase concatenations of transmitting coil and the anti-phase concatenation of described two receiving coils is shown in Figure 11
(a) with Figure 11 (b).In this model, if being used as described two emission lines using two inductance coils shown in Figure 11 (b)
Circle, then the receiving coil connecting curve when appropriate height is moved along X-axis and Y direction respectively point shown in Figure 11 (a)
Not as shown in Figure 12 (a) and Figure 12 (b).
The characteristics of this model is can be seen that from Figure 12 (a) and Figure 12 (b) is the effective working distance of Y direction
The free degree is larger, the characteristics of this has benefited from its work magnetic circuit：Because there was only one kind along the vertical magnetic circuit that Y-axis is found, be not in
The phenomenon that intersects and cause excess-attenuation, so connecting curve is very flat in Y direction moving process, operation interval compared with
It is wide.
As shown in figure 13, in this model, because described two receiving coils are connected in series, and described two transmittings
Coil is also to be connected in series, and adds mutual inductance each other, and total inductance amount is about four times of single coil.
In this model, the set-up mode of the described first U-shaped magnetic core is as shown in figure 14.Magnetic circuit collection can be made by so setting
In inside inductance coil, few leakage field is adapted to the efficient wireless power of super high power with higher power density to be transmitted.
On the basis of above-described embodiment, in the specific embodiment of the application, at least two transmitting coil
In same plane；
At least two receiving coil be in same plane, and at least two receiving coil where plane with it is described
Plane where at least two transmitting coils is parallel to each other.
On the basis of above-described embodiment, in another specific embodiment of the application, each transmitting coil institute
It is parallel with a receiving coil plane in plane, and at least two transmitting coil is not at same plane.
Specifically, in the specific embodiment of the application, as shown in Figure 15 (a), Figure 15 (b) and Figure 16,
The reception resonant ring is made up of two receiving coils (L21 and L22) serial or parallel connection, and their catenation principle is shown in
Figure 15 (a) and Figure 15 (b), the transmitting resonant ring is by two transmitting coils (L11 and L12) series connection (Figure 15 (a)) or (figure in parallel
15 (b)) constitute, its catenation principle is similar to the reception resonant ring, and the application will not be described here.Constitute the transmitting resonance
The product of first electric capacity C1 of ring capacity and the inductance value of the transmitting coil, it is described equal to composition to receive the second of resonant ring
The product of the equivalent electric sensibility reciprocal of receiving coil described in electric capacity C2 capacity and at least two, this product is normal we term it LC
Number, i.e.,：L1 × C1=L2 × C2=J=1/ ω2, wherein, L1 is equivalent electric sensibility reciprocal (L1=during series connection of two transmitting coils
L11+L12, L1=L11L12/ (L11+L12) when in parallel), L2 is the equivalent electric sensibility reciprocal of two receiving coils (during series connection
L2=L21+L22, L2=L21L22/ (L21+L22) when in parallel), J represents the LC constants, and ω represents the transmitting resonance
The resonance angular frequency of ring or the reception resonant ring.
The position relationship of described two transmitting coils and described two receiving coils is as shown in figure 16.
But in another embodiment of the application, the position of described two transmitting coils and described two receiving coils is closed
System can also be as shown in figure 17.
The application launches resonant ring and the specific set-up mode and relative position for receiving resonant ring not to described
Limit, specifically depending on actual conditions.
In the present embodiment, in addition to common reception energy that L21, L22 and L23 are together in series, side can also be passed through
Road L21 or bypass L22 or bypass L23 mode realize the grading control of transimission power.Accordingly, except by L11, L12 and L13
It is together in series beyond common transmission energy, transmission work(can also be realized by way of bypassing L11 or bypass L12 or bypass L13
The grading control of rate.
On the basis of above-described embodiment, in the particular preferred embodiment of the application, the second electric capacity C2 by
Constituted with the sub- electric capacity of at least two receiving coils quantity identical；
Each sub- electric capacity and a receiving coil constitute a sub- resonant ring；
The reception resonant ring is in series or in parallel to form between the sub- resonant ring.
In order to more clearly be illustrated to the present embodiment, illustrate, such as schemed by taking three receiving coils as an example below
18 be the reception resonant ring of formation of being connected after three sub- resonant rings be connecteds with full bridge rectifier, Figure 20 for three sub- resonant rings and
The translation connecting curve for the reception resonant ring that series connection is formed after full bridge rectifier connection, it can be seen in figure 20 that three sons
The reception resonant ring that series connection is formed after resonant ring is connected with full bridge rectifier has the output characteristics close to straight line in workspace, former
Because being that different output winding output voltages can be superimposed when the receiving coil interlocks, only occur on full bridge rectifier
Micro loss；If Figure 19 is the reception resonant ring in parallel formed, Figure 21 after three sub- resonant rings are connected with full bridge rectifier
The translation connecting curve of the reception resonant ring in parallel formed after being connected for three sub- resonant rings with full bridge rectifier, from Figure 21
It can be seen that, although output has a Gu Feng change, but advantage is to be lost lower, and nonclient area output winding avoids output completely
Loop, efficient electric energy transmission can be being realized in a big way and in the wireless power application of drive apparatus；Full-bridge therein
Rectification circuit is used to carry out rectifying and wave-filtering to the voltage of the sub- resonant ring conversion.
In the present embodiment, this connected mode can greatly improve the efficiency of transmission of wireless power, again can be according to reality
Border needs to increase working region, and the coil away from workspace reduces or completely eliminates unnecessary energy loss, and can lead to
Cross and bypass the modes of wherein one or more sub- resonant rings and carry out the grading control of power output, it is succinct and efficiently, in movement
Advantage can be highlighted in wireless power.
On the basis of any of the above-described embodiment, in one embodiment of the application, the transmitting coil is ellipse
Coil or trapezoidal coil or square coil or triangular coils or semicircular；
The receiving coil is oval coil or trapezoidal coil or square coil or triangular coils or semicircular.
The application is not limited the concrete shape of the transmitting coil and receiving coil, specifically regard actual conditions and
It is fixed.
In summary, the embodiment of the present application provides a kind of point-to-point wireless power coil coupling model, wherein, the point
Coupled to each other to the transmitting resonant ring in a wireless power coil coupling model and the reception resonant ring and described transmitting resonance
The resonant frequency of ring is identical with the resonant frequency of the reception resonant ring, i.e., at described transmitting resonant ring and the reception resonant ring
Wireless power process can be improved in the transmitting resonant ring under magnetic resonance state, and under magnetic resonance state and reception resonant ring
In efficiency of transmission.Because during being wirelessly transferred of electric energy energy density S by induction field electric-field intensity E and magnetic
Field intensity H determines (S=E × H), and resonant process can then double loop current, strengthens the induction field in space and magnetic field,
So as to greatly promote energy-flux density S, and then lift efficiency of transmission of the electric energy during being wirelessly transferred；And magnetic resonance can be very
Attract well and assemble the magnetic line of force of surrounding so as to effectively capture more electromagnetic energies, and then further lift electric energy in nothing
Efficiency of transmission in line transmitting procedure.
Due to it is described transmitting resonant ring by the first electric capacity C1 and with the first electric capacity C1 serial or parallel connections at least two
Transmitting coil is constituted, and the resonance in LC loops is beneficial to the higher harmonic components for filtering out input signal well, is so improved
Efficiency of transmission, can reduce high frequency spurs radiation, reduce the electromagnetic pollution to environment, meet very much green ring now again
Factoring is read.
And have extremely due to having in the reception resonant ring at least two receiving coils, and the transmitting resonant ring
Few two transmitting coils so that the electric energy that the reception resonant ring is received is evenly distributed and the transmitting resonant ring hair inside it
The electric energy sent is evenly distributed inside it, so as to reduce caloric value；And the composition of multiple receiving coils make it that the reception is humorous
The scope that the ring that shakes can sense the induction field that the transmitting resonant ring is produced becomes big, and accordingly, the composition of multiple transmitting coils makes
Transmitting resonant ring scope that electric energy can be transmitted becomes big, so as to reduce the transmitting resonant ring and the reception resonance
The coupling accuracy requirement of ring, the site error of the transmitting resonant ring allowed in other words and the reception resonant ring increases, drop
The low design requirement of the point-to-point wireless power coil coupling model.
Further, can be by inciting somebody to action in the actual application of the point-to-point wireless power coil coupling model
The mode of one or more of described at least two receiving coils for receiving resonant ring of composition receiving coil bypass carries out single
The switching of receiving coil working condition, or can also be by by least two transmitting coils for constituting the transmitting resonant ring
One or more transmitting coils the switching of single transmitting coil working condition is carried out in the way of bypassing, so as to realize output work
The grading control of rate, and then make it that the scope of application of the point-to-point wireless power coil coupling model is more extensive.
Accordingly, the embodiment of the present application additionally provides a kind of point-to-point wireless power supply system, including：Wireless power transmitter
With wireless power receiver；Wherein, it is provided with any reality as described above in the wireless power transmitter and wireless power receiver
Apply the point-to-point wireless power coil coupling model described in example.
It should be noted that the transmitting resonant ring in the point-to-point wireless power coil coupling model is arranged at the nothing
Line is powered in transmitter；Reception resonant ring in the point-to-point wireless power coil coupling model is arranged at the wireless power
In receiver.
On the basis of above-described embodiment, one embodiment of the application provides a kind of specific wireless power transmitter
Structural representation, as shown in figure 22, civil power 220V exchange process rectification circuit obtain pulse direct current, then with less
Capacitor filtering bypass carries out decoupling to transmitting working frequency, without handling fluctuation voltage, directly feeds the transmitting humorous
Shake ring (not shown in Figure 22)；The power factor of the wireless power transmitter of this structure is relatively good, can due to 0.95, and
Circuit is simply with low cost, is adapted to middle low power (below 500W) and requires relatively low wireless powering device, such as illuminates and generate heat
Electrical equipment etc..Figure 23 (a) and Figure 23 (b) are respectively the direct current supply waveform and hair in wireless power transmitter described in the present embodiment
Send the schematic diagram of output waveform.
On the basis of above-described embodiment, the application's launches another embodiment provides for a kind of specific wireless power
The structural representation of device, as shown in figure 24, adds PFC electronic power factor correcting circuits, by school on the basis of Figure 22
Just later DC voltage is steady, there is good power factor again.This will improve the wireless power transmitter it is overall into
This, but excellent working performance and powerful is wirelessly transferred the higher power supply unit of suitable requirement.Such as Figure 25 (a) and figure
25 (b) is respectively signal of the direct current supply waveform with sending output waveform in wireless power transmitter described in the present embodiment
Figure.
On the basis of above-described embodiment, another embodiment of the application provides a kind of specific wireless power transmitting
The structural representation of device, as shown in figure 26, in the present embodiment, the wireless power transmitter be applied to it is more high-power (5KW with
On) wireless power transmission, at this moment can be from three-phase industrial electro because civil power has been insufficient for higher power termination requirement
Net obtains more powerful electric power resource.Such as Figure 27 (a) and Figure 27 (b) are respectively shown in, and the direct current fluctuation after over commutation is little,
Less capacitor filtering can just meet requirement, but have enough decouplings to sending working frequency.
According to the size of transimission power, the output duty cycle of the wireless power transmitter should be arranged on suitable position
Put, as shown in figure 28, in requisition for larger duty cycle rates when loading larger.When dutycycle exceedes certain value, receiving power will
(this is relevant with resonance characteristic) is not further added by, and open circuit loss can become larger.Launching the inside of resonant ring described in transmitting terminal
Energy is not suddenly to lean on the front edge portion of radiating circuit pulse to provide, and continuing increase pulse width when pulsewidth is enough then can be right
Power output is not contributed.So when dutycycle is located at specific power output maximum in practical application for dutycycle bigger one
At the position of point, civil power excursion is also taken into account certainly.
On the basis of above-described embodiment, one embodiment of the application provides a kind of specific wireless power receiver
Structural representation, the present embodiment provide the wireless power receiver be applied to middle low power, using as shown in figure 29
Half-bridge structure can meet requirement, one end connection half-bridge output end for receiving resonant ring (not shown in Figure 29), the other end
It is connected on the centre of the filter capacitor of two series connection.
The wireless power receiver of full bridge structure can be used more powerful when, as shown in figure 30, so exported
Voltage magnitude can be doubled, and meet higher demanded power output.
On the basis of above-described embodiment, in the preferred embodiment of the application, the point-to-point wireless power system
System also includes answer back code dispensing device and multiple identification code dispensing devices；Wherein,
The quantity of the multiple identification code dispensing device and the transmitting in the point-to-point wireless power coil coupling model
Number of coils is identical, and each identification code dispensing device and a transmitting coil are bound, for sending identification code, and
The transmitting coil that control is bound with it after the answer back code that the answer back code dispensing device is sent is received is started working；
The answer back code dispensing device is bound with the receiving coil in the point-to-point wireless power coil coupling model, is used
In sending answer back code after the identification code is received.
As shown in figure 31 (by taking the transmitting resonant ring that three described transmitting coil L11, L12 and L13 are constituted as an example, and Figure 31
In illustrate only it is described reception resonant ring in a receiving coil), in the present embodiment, with the point-to-point wireless power line
The identification code dispensing device for each transmitting coil binding enclosed in the transmitting resonant ring in coupling model can be by being sent out
The mode of identification code scans the position of the receiving coil L2 in the reception resonant ring, when the hair near the receiving coil L2
Ray circle sets up transmissions links (i.e. after receiving the answer back code that the answer back code dispensing device bound with the receiving coil L2 is sent
The identification code dispensing device control for receiving the answer back code binds transmitting coil start-up operation with it), so as to start wireless confession
The transmission of electricity.The transmitting coil in optimum position can be allowed to work in this way, optimal electric energy transmitting-receiving can be formed
Link, can expand the working region scope of the point-to-point wireless power supply system, efficiency of transmission can be improved again.
The answer back code that the identification code and the answer back code dispensing device that the identification code dispensing device is sent are sent
To be realized by way of carrier wave, such as infrared ray, bluetooth and Wi-Fi, the application is not limited this, specific to regard real
Depending on the situation of border.
In summary, the embodiment of the present application provides a kind of point-to-point wireless power coil coupling model and point-to-point wireless
Electric power system, wherein, transmitting resonant ring in the point-to-point wireless power coil coupling model and the reception resonant ring that
The resonant frequency of this coupling and the transmitting resonant ring is identical with the resonant frequency of the reception resonant ring, i.e., described transmitting resonance
Ring and the reception resonant ring are under magnetic resonance state, and transmitting resonant ring and reception resonant ring under magnetic resonance state
The efficiency of transmission during wireless power can be improved.Because energy density S is by feeling during being wirelessly transferred of electric energy
The electric-field intensity E and magnetic field intensity H of electric field is answered to determine (S=E × H), and resonant process can then double loop current, strengthen space
In induction field and magnetic field, so as to greatly promote energy-flux density S, and then lift transmission effect of the electric energy during being wirelessly transferred
Rate；And magnetic resonance can well attract and assemble the magnetic line of force of surrounding so as to effectively capture more electromagnetic energies, and then
Further lift efficiency of transmission of the electric energy during being wirelessly transferred.
Due to it is described transmitting resonant ring by the first electric capacity C1 and with the first electric capacity C1 serial or parallel connections at least two
Transmitting coil is constituted, and the resonance in LC loops is beneficial to the higher harmonic components for filtering out input signal well, is so improved
Efficiency of transmission, can reduce high frequency spurs radiation, reduce the electromagnetic pollution to environment, meet very much green ring now again
Factoring is read.
And have extremely due to having in the reception resonant ring at least two receiving coils, and the transmitting resonant ring
Few two transmitting coils so that the electric energy that the reception resonant ring is received is evenly distributed and the transmitting resonant ring hair inside it
The electric energy sent is evenly distributed inside it, so as to reduce caloric value；And the composition of multiple receiving coils make it that the reception is humorous
The scope that the ring that shakes can sense the induction field that the transmitting resonant ring is produced becomes big, and accordingly, the composition of multiple transmitting coils makes
Transmitting resonant ring scope that electric energy can be transmitted becomes big, so as to reduce the transmitting resonant ring and the reception resonance
The coupling accuracy requirement of ring, the site error of the transmitting resonant ring allowed in other words and the reception resonant ring increases, drop
The low design requirement of the point-to-point wireless power coil coupling model.
Further, can be by inciting somebody to action in the actual application of the point-to-point wireless power coil coupling model
The mode of one or more of described at least two receiving coils for receiving resonant ring of composition receiving coil bypass carries out single
The switching of receiving coil working condition, or can also be by by least two transmitting coils for constituting the transmitting resonant ring
One or more transmitting coils the switching of single transmitting coil working condition is carried out in the way of bypassing, so as to realize output work
The grading control of rate, and then make it that the scope of application of the point-to-point wireless power coil coupling model is more extensive.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (11)
1. a kind of point-to-point wireless power coil coupling model, it is characterised in that including：Launch resonant ring and receive resonant ring；
Wherein,
The transmitting resonant ring includes the first electric capacity and at least two transmitting coils with the first electric capacity serial or parallel connection；
The reception resonant ring includes the second electric capacity and at least two receiving coils with the second electric capacity serial or parallel connection；
The transmitting resonant ring and the reception resonant ring are coupled to each other, and the resonant frequency of the transmitting resonant ring connects with described
The resonant frequency for receiving resonant ring is identical.
2. point-to-point wireless power coil coupling model according to claim 1, it is characterised in that the transmitting coil and
The receiving coil is close type coil or loose type coil.
3. point-to-point wireless power coil coupling model according to claim 1, it is characterised in that also include：First magnetic
Core and the second magnetic core；
First magnetic core is used for the magnetic flux density for lifting at least two transmitting coil；
Second magnetic core is used for the magnetic flux density for lifting at least two receiving coil.
4. point-to-point wireless power coil coupling model according to claim 3, it is characterised in that first magnetic core is
Bar-shaped magnet, is arranged at the transmitting coil away from the receiving coil side；
Second magnetic core is bar-shaped magnet, is arranged at the receiving coil away from the transmitting coil side.
5. point-to-point wireless power coil coupling model according to claim 3, it is characterised in that first magnetic core is
U-shaped magnet, is set around the transmitting coil；
Second magnetic core is U-shaped magnet, is set around the receiving coil.
6. point-to-point wireless power coil coupling model according to claim 1, it is characterised in that at least two hair
Ray circle is in same plane；
At least two receiving coil be in same plane, and at least two receiving coil where plane with it is described at least
Plane where two transmitting coils is parallel to each other.
7. point-to-point wireless power coil coupling model according to claim 1, it is characterised in that each emission lines
Plane where circle is parallel with a receiving coil plane, and at least two transmitting coil is not at same plane.
8. point-to-point wireless power coil coupling model according to claim 1, it is characterised in that described point-to-point wireless
Power coil coupling model also includes：First U-shaped magnetic core；
The resonant ring that receives includes the second electric capacity, two receiving coils with the second electric capacity serial or parallel connection, described two
The anti-phase concatenation of individual receiving coil；
The transmitting resonant ring includes the first electric capacity, two transmitting coils with the first electric capacity serial or parallel connection, described two
The anti-phase concatenation of individual transmitting coil；
The first U-shaped magnetic core is used for the magnetic flux density for lifting described two transmitting coils and described two receiving coils.
9. the point-to-point wireless power coil coupling model according to claim any one of 1-8, it is characterised in that the hair
Ray circle is oval coil or trapezoidal coil or square coil or triangular coils or semicircular；
The receiving coil is oval coil or trapezoidal coil or square coil or triangular coils or semicircular.
10. a kind of point-to-point wireless power supply system, it is characterised in that including：Wireless power transmitter and wireless power receiver；
Wherein, set in the wireless power transmitter and wireless power receiver just like the point pair described in claim any one of 1-9
Point wireless power coil coupling model.
11. point-to-point wireless power supply system according to claim 10, it is characterised in that also including answer back code dispensing device
With multiple identification code dispensing devices；Wherein,
The quantity of the multiple identification code dispensing device and the transmitting coil in the point-to-point wireless power coil coupling model
Quantity is identical, and each identification code dispensing device and a transmitting coil are bound, and for sending identification code, and are being connect
The transmitting coil that control is bound with it after the answer back code that the answer back code dispensing device is sent is received to start working；
Receiving coil in the answer back code dispensing device and the point-to-point wireless power coil coupling model is bound, for
Answer back code is sent after receiving the identification code.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620165451 | 2016-03-04 | ||
| CN201610122657 | 2016-03-04 | ||
| CN2016101226574 | 2016-03-04 | ||
| CN2016201654515 | 2016-03-04 |
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| CN201610497600.2A Pending CN105932788A (en) | 2016-03-04 | 2016-06-29 | Point-to-point wireless power supply coil coupling model and point-to-point wireless power supply system |
| CN201620678186.0U Active CN206060362U (en) | 2016-03-04 | 2016-06-29 | Point-to-point wireless power coil coupling model and point-to-point wireless power supply system |
| CN201620678197.9U Active CN206226129U (en) | 2016-03-04 | 2016-06-29 | Point-to-point wireless power coil coupling model and point-to-point wireless power supply system |
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| CN201620678186.0U Active CN206060362U (en) | 2016-03-04 | 2016-06-29 | Point-to-point wireless power coil coupling model and point-to-point wireless power supply system |
| CN201620678197.9U Active CN206226129U (en) | 2016-03-04 | 2016-06-29 | Point-to-point wireless power coil coupling model and point-to-point wireless power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106230126A (en) * | 2016-03-04 | 2016-12-14 | 中惠创智无线供电技术有限公司 | Point-to-point wireless power coil coupling model and point-to-point wireless power supply system |
| TWI694656B (en) * | 2018-06-12 | 2020-05-21 | 崑山科技大學 | Interleaved wireless high frequency pulsed battery charger |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109300665A (en) * | 2018-10-30 | 2019-02-01 | 上海奕征新能源技术有限公司 | Wireless charging coil |
| CN111245076B (en) * | 2020-04-23 | 2020-08-18 | 成都斯普奥汀科技有限公司 | Multi-transmit multi-receive magnetic resonance wireless charging system for medium power electronic equipment |
| CN112265890B (en) * | 2020-10-22 | 2022-06-03 | 重庆前卫无线电能传输研究院有限公司 | Wireless power-taking type elevator power supply system |
| CN113629893B (en) * | 2021-07-28 | 2023-08-22 | 广西电网有限责任公司电力科学研究院 | Wireless charging coupling mechanism, wireless power transmission system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102593962B (en) * | 2012-03-13 | 2014-05-14 | 崔玉龙 | Device for transmitting kilowatt wireless power at moderate distance |
| CN203233242U (en) * | 2013-04-19 | 2013-10-09 | 美的集团股份有限公司 | Wireless electric power transmission system |
| JP5889249B2 (en) * | 2013-07-12 | 2016-03-22 | 東芝テック株式会社 | Power transmission device, power transmission device for power transmission device |
-
2016
- 2016-06-29 CN CN201620670826.3U patent/CN206353727U/en active Active
- 2016-06-29 CN CN201610497600.2A patent/CN105932788A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230126A (en) * | 2016-03-04 | 2016-12-14 | 中惠创智无线供电技术有限公司 | Point-to-point wireless power coil coupling model and point-to-point wireless power supply system |
| TWI694656B (en) * | 2018-06-12 | 2020-05-21 | 崑山科技大學 | Interleaved wireless high frequency pulsed battery charger |
Also Published As
| Publication number | Publication date |
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| CN105932788A (en) | 2016-09-07 |
| CN206060362U (en) | 2017-03-29 |
| CN206226129U (en) | 2017-06-06 |
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