CN107534318A - Power transmission device, current-collecting device and electrical power transmission system - Google Patents
Power transmission device, current-collecting device and electrical power transmission system Download PDFInfo
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- CN107534318A CN107534318A CN201680021293.9A CN201680021293A CN107534318A CN 107534318 A CN107534318 A CN 107534318A CN 201680021293 A CN201680021293 A CN 201680021293A CN 107534318 A CN107534318 A CN 107534318A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
Power transmission device (101) possesses：Inverter circuit (110), there is provided alternating electromotive force；Coil (L1), from inverter circuit (110) provide alternating electromotive force, and with current-collecting device (201) possessed by coil (L2) magnetic coupling；With current detecting part (112), the electric current for flowing through coil (L1) is detected.Coil (L1) is that coil (L11, L12) is connected in series and formed.Current detecting part (112) is arranged in series between coil (L11, L12).Thus, there is provided a kind of that the power transmission device of current detecting, current-collecting device are carried out in the case of without using the detection means of high voltage patience and possesses its electrical power transmission system.
Description
Technical field
The present invention relates to transmit the power transmission device of electric power to current-collecting device via magnetic coupling, via magnetic coupling from power transmission
Device transmits the current-collecting device of electric power and possesses its electrical power transmission system.
Background technology
In patent document 1, describe loaded from power transmission device to connecting using resonance in the state of non-contact
Current-collecting device transmits the electrical power transmission system of electric power.In the electrical power transmission system, in the case of the impedance increase of load, make
The output current of high frequency electric source is reduced, and the destruction of the circuit of high frequency electric source etc. is prevented trouble before it happens.In patent document 1, in order to
The impedance of load is determined, the output current of high frequency electric source is detected.
Citation
Patent document
Patent document 1：TOHKEMY 2014-217120 publications
The content of the invention
- the invention problem to be solved-
However, because the power transmission under non-contact is carried out under high voltages, therefore high electricity is needed in current sensing means
Press patience.As a result, the problem of current sensing means maximizes, power transmission device also maximizes in itself be present.
Therefore, enter it is an object of the present invention to provide a kind of in the case of without using the detection means of high voltage patience
The power transmission device of row current detecting, current-collecting device and possesses its electrical power transmission system.
- the means to solve the problem-
Power transmission device involved in the present invention is characterised by possessing：Power supply circuit, there is provided alternating electromotive force；Power transmission side line
Circle, by from the power supply circuit provide alternating electromotive force, with current-collecting device possessed by power side coil magnetic field couple；Examined with electric current
Survey portion, the electric current for flowing through the power transmission lateral coil is detected, the power transmission lateral coil is that the 1st coil is gone here and there with the 2nd coil
What connection was connected and formed, the current detecting part is arranged in series between the 1st coil and the 2nd coil.
In this composition, carry out flowing through power transmission lateral coil between the 1st coil and the 2nd coil of power transmission lateral coil is formed
The detection of electric current.In the case where applying differential voltage to the both ends of power transmission lateral coil, the connection of the 1st coil and the 2nd coil
The potential change of point is smaller.Therefore, it is possible to make the voltage for putting on current detecting part relatively low.Therefore, current detecting part is pressure-resistant
Produce it is abundant, furthermore it is possible to which the superposition of suppression common mode voltage, can reduce noise.Furthermore it is possible to make current detecting part small-sized
Change, as a result, possessing its power transmission device can also minimize.
Can also the 1st coil and the 2nd coil there is identical inductance.
In this composition, in the case where applying differential voltage to the both ends of power transmission lateral coil, the coils of the 1st coil と the 2nd
Tie point variation in voltage it is smaller.It therefore, there is no need to improve the voltage patience with ground connection of current detecting part.
Can also the 1st coil and the 2nd coil construction it is all identical.
In this composition, in the case where applying symmetrical differential voltage to the both ends of power transmission lateral coil, the 1st coil and the
The variation in voltage of the tie point of 2 coils is smaller.It therefore, there is no need to improve the voltage patience relative to ground connection of current detecting part.
Can also possess the electric capacity being arranged between the 1st coil and the tie point of the 2nd coil and ground connection
Device.
In this composition, the potential change of the tie point of the 1st coil and the 2nd coil can be reduced.
Can also the capacitor have than the 1st coil and the 2nd coil respectively between ground connection caused by
The big electric capacity of electric capacity.
In this composition, in the case where the respective balance to ground capacity of the 1st coil and the 2nd coil is destroyed, energy
Enough reduce the influence to the potential change at the tie point of the 1st coil and the 2nd coil.Therefore, the tie point is provided with electricity
In the case of flowing test section, it is not necessary to excessively improve the voltage patience with ground connection of current detecting part, current detecting can be suppressed
The maximization in portion.
Current-collecting device involved in the present invention is characterised by possessing：Power side coil, with power transmission device possessed by give
Electric lateral coil magnetic coupling；Parasite power supplier, the voltage sensed in the power side coil is supplied to load；And current detecting
Portion, the electric current for flowing through the power side coil is detected, the power side coil is that the 1st coil is connected with the 2nd coil
Connect and form, the current detecting part is arranged in series between the 1st coil and the 2nd coil.
In this composition, carry out flowing through power side coil between the 1st coil and the 2nd coil of power side coil is formed
The detection of electric current.In the case where applying differential voltage to the both ends of power side coil, the electricity between the 1st coil and the 2nd coil
Position changes smaller.It therefore, there is no need to excessively improve the voltage patience of current detecting part.Therefore, it is possible to make current detecting part small-sized
Change, as a result, possessing its current-collecting device can also minimize.
The present invention is a kind of electrical power transmission system, it is characterised in that is possessed：Current-collecting device with power side coil；With
The power transmission device of the power supply circuit of alternating electromotive force, the power transmission are provided with power transmission lateral coil and to the power transmission lateral coil
Lateral coil is coupled with the power side coil magnetic field, and electric power is transmitted from the power transmission device to the current-collecting device, wherein, it is described
Power transmission device possesses：The current detecting part detected to the electric current for flowing through the power transmission lateral coil, the power transmission lateral coil are
1st coil and the 2nd coil are connected in series and formed, and the current detecting part is arranged in series in the 1st coil and institute
State between the 2nd coil.
In this composition, carry out flowing through power transmission lateral coil between the 1st coil and the 2nd coil of power transmission lateral coil is formed
The detection of electric current.In the case where applying differential voltage to the both ends of power transmission lateral coil, the electricity between the 1st coil and the 2nd coil
Position changes smaller.It therefore, there is no need to excessively improve the voltage patience of current detecting part.Therefore, it is possible to make current detecting part small-sized
Change, as a result, possessing its power transmission device can also minimize.
- invention effect-
It is right by setting current detecting part between less 1st coil of variation in voltage and the 2nd coil according to the present invention
The electric current for flowing through power transmission lateral coil is detected, the voltage patience without excessively improving current detecting part.Therefore, it is possible to
Minimize current detecting part, as a result, possessing its power transmission device can also minimize.
Brief description of the drawings
Fig. 1 is the circuit diagram of the electrical power transmission system involved by present embodiment.
Fig. 2 is the figure for being illustrated to the composition of current detecting part.
Fig. 3 is the figure for being illustrated to the composition of coil.
Fig. 4 is the figure for the voltage's distribiuting for representing coil.
Fig. 5 is the figure illustrated for the composition of the connecting portion to coil.
Fig. 6 is the figure for the voltage's distribiuting for representing coil.
Fig. 7 is the figure of another of the composition for representing coil.
Fig. 8 is the figure of another of the composition for representing coil.
Fig. 9 be current-collecting device coil be provided with current detecting part electrical power transmission system circuit diagram.
Embodiment
(embodiment 1)
Fig. 1 is the circuit diagram of the electrical power transmission system 1 involved by present embodiment.Electrical power transmission system 1 possesses power transmission dress
Put 101 and current-collecting device 201.In electrical power transmission system 1, power transmission device 101 and the magnetic coupling of current-collecting device 201, electric power lead to
Magnetic coupling (electromagnetic induction) mode is crossed wirelessly to transmit from power transmission device 101 to current-collecting device 201.In addition, in power transmission
In system 1, respectively in power transmission device 101 and current-collecting device 201, efficiency of transmission, electrical power transmission system 1 are improved by resonance
And so-called magnetic resonance mode.
Power transmission device 101 possesses：Inverter circuit 110, resonance circuit 111, current detecting part 112 and voltage detection department
113。
The DC voltage inputted from dc source Vin is changed into alternating voltage by inverter circuit 110, and exports the exchange
Voltage.The alternating voltage exported from inverter circuit 110 is relative to the symmetrical differential voltage of earth level.Inverter circuit
110 be an example of " power supply circuit " involved in the present invention.
Resonance circuit 111 is made up of capacitor C11, C12 and coil L1.Coil L1 is " power transmission involved in the present invention
One example of lateral coil ".Apply the alternating voltage (differential voltage) exported from inverter circuit 110 to resonance circuit 111.Line
It is that coil L11, L12 are connected in series and formed to enclose L1.Coil L11, L12 are " the 1st coil " involved in the present invention and "
One example of 2 coils ".
Current detecting part 112 is arranged in series between coil L11, L12 in resonance circuit 111, to flowing through coil L1
Electric current detected.The electric current for flowing through coil L1 is the electric current that resonance circuit 111 is flowed to from inverter circuit 110.
Fig. 2 is the figure for being illustrated to the composition of current detecting part 112.
Current detecting part 112 has：Inductor L31, inductor L32, capacitor C3 and load R.Inductor L31 is line
Enclose the inductance composition of L11, L12 connection line, inductor L32 and inductor L31 magnetic couplings.Capacitor C3 and load R
It is connected in parallel in inductor L32.Generally, inductor L31 inductance is set to relatively low relative to coil L1 inductance.Inductor
L31 inductance is lower than coil L1 inductance, thus, it is possible to improve the coupled systemes with the current-collecting device 201 as power transmission object
Number, the efficiency of transmission between power transmission device 101 and current-collecting device 201 improve.
In the case where electric current flows through coil L1, electric current is also flowed through in inductor L31, in the inductance coupled via magnetic field
Device L32 produces induced electromotive force.Induced electromotive force is produced in inductor L32, so as to be flowed through in inductor L32 and load R
Induced-current, the voltage based on voltage drop is produced in load R.Also, R voltage is loaded by detecting, can detect and flow through electricity
Sensor L31 (coil L1) electric current.
Voltage detection department 113 for example with voltage dividing resistance circuit, detects to the voltage for putting on resonance circuit 111.
Current-collecting device 201 possesses：Parasite power supplier 210, resonance circuit 211 and load RL.
By the coil L1 of power transmission device 101 and current-collecting device 201 coil L2 magnetic couplings, so as to from power transmission device
101 transmit electric power to current-collecting device 201.Coil L2 is an example of " power side coil " involved in the present invention.It is in addition, humorous
The circuit 211 that shakes has coil L2 and capacitor C2.Pass through resonance circuit 111 and current-collecting device 201 with power transmission device 101
Resonance circuit 211, can efficiently carry out power transmission.Parasite power supplier 210 is to caused by the voltage that senses in coil L2
Voltage and electric current carry out rectification and smooth, and are supplied to load RL.It is, for example, secondary cell etc. to load RL.
In the electrical power transmission system 1, in power transmission device 101, by using current detecting part 112 and voltage detection department
113, the electric current and voltage for putting on resonance circuit 111 are detected, so as to detect from inverter circuit 110
Impedance in the case of the side of current-collecting device 201.By detecting impedance, such as can determine that whether power transmission device 101 is placed with
Current-collecting device 201.In the case of current-collecting device 201 is placed with power transmission device 101, power transmission device 101 and current-collecting device 201
Resonance circuit coupling, there is the frequency peak based on composite resonant.Also, by detecting the frequency characteristic of impedance, to frequency
The presence or absence of peak value is detected, and can determine that the mounting for whetheing there is current-collecting device 201.
Hereinafter, the coil L1 of power transmission device 101 composition is illustrated.
Fig. 3 is the figure for being illustrated to coil L1 composition.
Coil L1 is that coil L11, L12 are connected in series and formed.Coil L11 one end is connected with capacitor C11.Line
The circle L11 other end is connected with coil L12 one end.In more detail, the coil L11 other end via current detecting part 112 and
It is connected with coil L12.In addition, the coil L12 other end is connected with capacitor C12.
Coil L11, L12 make wireline reel consistent and are configured, and coiling direction is formed as identical.In addition, coil
L11, L12 loop length, coil aperture and the number of turn are formed as identical, and have identical inductance.That is, coil
L11, L12 construction are all identical.Here, if the circular direction for being connected as flowing through coil L11, L12 electric current is identical court
To, then from magnetic flux caused by coil L11, L12 and winding direction of principal axis be same phase.If coil L11, L12 wireline reel it is consistent and
The circular direction of electric current is identical direction, then mutually strengthens from magnetic flux caused by coil L11, L12, mutually carry out magnetic coupling
To cause combination inductance to strengthen.Therefore, if coil L11 approaches with coil L12, coil L11 and coil L12 can substantially be handled
For the coil with the equal inductance of a coil being added of the number of turn for the number of turn being coil L11 and coil L12.
It is connected in addition, though coil L1 is coiling direction consistent coil L11 and coil L12, but is not limited to this.
It is to flow through the direction of coil by electric current to determine, if therefore suitably to flow through coil by electric current and the direction of caused magnetic flux
Select coil L11 and coil L12 coiling direction and closure, it becomes possible to form the coil L1 with desired characteristic.
In addition, coil L11, L12 are not required to intercouple.
Capacitor C11, C12 and coil L11, L12 form resonance circuit 111.Also, coil L11, L12 inductance phase
Together.Therefore, capacitor C11, C12 electric capacity is identical.That is, resonance circuit 111 is capacitor C11 and coil L11, electricity
Container C12 and coil L12 balancing circuitry.Apply differential voltage from inverter circuit 110 to the resonance circuit 111.
Fig. 4 is the figure for the voltage's distribiuting for representing coil L1.
As described above, resonance circuit 111 is the balancing circuitry centered on coil L11, L12 tie point A.Humorous to this
In the case that the circuit 111 that shakes applies differential voltage, it is minimum in tie point A to apply alive amplitude.That is, at tie point A
Potential change it is smaller relative to the input voltage to resonance circuit 111.Therefore, current detecting part 112 is set in tie point A
In the case of, it is not necessary to the voltage patience relative to ground connection of current detecting part 112 is improved, current detecting part 112 can be suppressed
Maximization.In addition, so-called differential voltage here, refers to a little positive and negative more asynchronous with 2 points of respective current potential
With 2 points of potential difference.
Further, since resonance circuit 111 is balancing circuitry, it can be ensured that the balance of circuit, therefore common mode can be prevented
The intrusion or generation of noise.Further, since in the case where resonance circuit 111 is balancing circuitry, coil L11, L12 inductance
Identical, current detecting part 112 is configured between coil L11, L12, therefore can be in the feelings for the balance for not destroying resonance circuit
Formed under condition.Further, because the potential change of current detecting part 112 is smaller, therefore can suppress to be based on current detecting part
The influence of 112 parasitic capacitance, for example, being become based on the loss on the transmission line caused by the inefficient power of parasitic capacitance, frequency
It is dynamic.
Furthermore, it is not necessary that coil L11, L12 inductance, loop length, coil aperture and umber of turn difference are identical, this
Outside, it is not required that capacitor C11, C12 electric capacity difference are identical.But if coil L11, L12 inductance (loop length and
Umber of turn) and capacitor C11, C12 electric capacity it is identical, then put on coil L11, L12 the balance of voltage (it is differential and
Size is identical) in the case of, the minimum position of potential change be present in coil L11 and coil L12 tie point, therefore further
The voltage patience relative to ground connection of current detecting part 112 need not excessively be improved.
(embodiment 2)
Hereinafter, the electrical power transmission system involved by embodiment 2 is illustrated.Electric power involved by present embodiment passes
Defeated system transmits electric power from power transmission device to current-collecting device in the same manner as embodiment 1, by magnetic coupling.Present embodiment institute
The power transmission device being related to coil L11, L12 tie point and grounding connection this respect, it is different from embodiment 1.Hereinafter, to this
Difference illustrates.In addition, other compositions are identical with embodiment 1.
Fig. 5 is the figure illustrated for the composition of the connecting portion to coil L11, L12.Cg1, Cg2 shown in Fig. 5 are lines
Enclose L11, L12 to ground capacity.Coil L11, L12 construction are all identical, to the size substantially phase of ground capacity Cg1, Cg2
Together.
In the same manner as embodiment 1, current detecting part 112 is set in coil L11, L12 connecting portion.The current detecting part
112 both ends are connected via capacitor C41, C42 with the reference potential of power transmission device.Capacitor C41, C42 are set as comparing coil
L11, L12 electric capacity big to ground capacity Cg1, Cg2.Apply differential electricity from inverter circuit 110 to the resonance circuit 111
Pressure.
Fig. 6 is the figure for the voltage's distribiuting for representing coil L1.Capacitor Cz shown in Fig. 6 is Fig. 5 capacitor C41, C42
Combined capacity.
As explanation in embodiment 1, resonance circuit 111 is the balance centered on coil L11, L12 tie point A
Circuit.In the case where applying differential voltage to the resonance circuit 111, it is minimum in tie point A to apply alive amplitude.However,
(situation about being destroyed to the balance of ground capacity Cg1, Cg2 in the case of balance in resonance circuit 111 is destroyed and is changed into unbalanced
Under), have an impact to the potential change at tie point A.Therefore, by that by tie point A and grounding connection, can make tie point A's
Potential change is smaller relative to the input voltage to resonance circuit 111, can reduce the influence of the destruction based on balance.Therefore,
In the case where the connecting portion is provided with current detecting part 112, it is not necessary to excessively improve the electricity with ground connection of current detecting part 112
Patience is pressed, the maximization of current detecting part 112 can be suppressed.
In the present embodiment, capacitor C41, C42 reactance is set to the electricity of the connection line than coil L11, L12
Anti- composition (the inductor L31 shown in Fig. 2) is big.Thus, the electric current for flowing through coil L1 flows to ground connection, energy from capacitor C41, C42
Enough prevent from not flowing to current detecting part 112.
In addition, in embodiment 1,2, coil L1 is symmetrical between wireline reel consistent coil L11 and coil L12
Face, coil L11 and coil L12 is configured as symmetrically, but is not limited to this.
Fig. 7 and Fig. 8 is the figure of another of the composition for representing coil.
For example, it is also possible to it is configured as making wireline reel be parallel to each other.Further, the wireline reel of coil can not also be parallel
(can also be configured as orthogonal or with angled).
Coil L13, L14 shown in Fig. 7 are configured as wireline reel and are parallel to each other, and it is not overlapping to overlook lower coil opening.In addition,
Coil L13, L14 are formed and are connected as overlooking lower electric current to be flowed in the same direction, and caused magnetic flux is oriented identical
Towards (for example, the direction of arrow in figure).In this case, due to that can be that coil aperture is larger by coil L13, L14 processing
One coil, therefore the position skew of power transmission device 101 and current-collecting device 201 becomes strong.
It is mutually flat to be configured as wireline reel in the same manner as coil L13, L14 shown in Fig. 7 by coil L15, L16 shown in Fig. 8
OK, it is not overlapping to overlook lower coil opening.Flowed in the opposite direction in addition, coil L15, L16 are formed and are connected as overlooking lower electric current
Dynamic, being oriented for caused magnetic flux is oppositely directed to (for example, the direction of arrow in figure).In this case, due to coil L15, L16 phase
Mutual magnetic field couples, therefore combination inductance becomes big.Further, since the transverse direction between coil L15, L16 (winds the orthogonal of direction of principal axis
Direction) magnetic flux is produced, therefore in the case that the wireline reel of power transmission device 101 and the coil of current-collecting device 201 is orthogonal,
Two coils also couple.
In addition, though in embodiment 1,2, the coil L1 that current detecting part 112 is configured in power transmission device 101 is had
Between 2 coils L11, L12 having, but current detecting part 112 can also be configured to the coil L2 of current-collecting device 102.
Fig. 9 is the circuit diagram that the electrical power transmission system 1A of current detecting part is set in the coil L2 of current-collecting device.In the feelings
Under condition, coil L2 is that 2 coils L21, L22 are connected in series and formed.Also, electric current is set between coil L21, L22
Test section 212.Thus, detected, such as can be detected as negative by the electric current of the coil L2 to flowing through current-collecting device 102
Carry the state of RL secondary cell.
In addition, in embodiment 1,2, current detecting part 112 is arranged in series between coil L11, L12, and this refers to
It is connected in series on equivalent circuit.For example, using to due to flow through the electric current of circuit and around circuit caused magnetic
In transformer that (magnetic flux) is detected, current detecting part of Hall element etc., current detecting part need not directly connect with circuit
Connect, by current detecting part close to circuit, electric current can be detected.But even if in these cases, it can also be considered as and wait
The current detecting part of the current detecting position comprising circuit is connected with detection object circuit connected in series on effect circuit.
- symbol description-
A... tie point
C11, C12... capacitor
C2... capacitor
C3... capacitor
C41, C42... capacitor
Cg1, Cg2... are to ground capacity
Cz... capacitor
L1... coil (power transmission lateral coil)
L11, L12... coil (the 1st coil, the 2nd coil)
L2... coil (power side coil)
L31, L32... inductor
R... load
RL... load
Vin... dc source
1st, 1A... electrical power transmission systems
101... power transmission device
110... inverter circuit
111... resonance circuit
112nd, 212... current detecting parts
113... voltage detection department
201... current-collecting device
210... parasite power supplier
211... resonance circuit
Claims (7)
1. a kind of power transmission device, possesses：
Power supply circuit, there is provided alternating electromotive force；
Power transmission lateral coil, by from the power supply circuit provide alternating electromotive force, with current-collecting device possessed by power side coil magnetic field
Coupling；With
Current detecting part, the electric current for flowing through the power transmission lateral coil is detected,
The power transmission lateral coil is that the 1st coil is connected in series and formed with the 2nd coil,
The current detecting part is arranged in series between the 1st coil and the 2nd coil.
2. power transmission device according to claim 1, wherein,
1st coil and the 2nd coil have identical inductance.
3. power transmission device according to claim 1 or 2, wherein,
The construction of 1st coil and the 2nd coil is all identical.
4. the power transmission device according to any one of claims 1 to 3, wherein,
The power transmission device possesses capacitor, and the capacitor is arranged at the tie point of the 1st coil and the 2nd coil
Between ground connection.
5. power transmission device according to claim 4, wherein,
The capacitor has that caused electric capacity is also big between ground connection respectively than the 1st coil and the 2nd coil
Electric capacity.
6. a kind of current-collecting device, possesses：
Power side coil, with power transmission device possessed by power transmission side coil magnetic field couple；
Parasite power supplier, the voltage induced in the power side coil is supplied to load；With
Current detecting part, the electric current for flowing through the power side coil is detected,
The power side coil is that the 1st coil is connected in series and formed with the 2nd coil,
The current detecting part is arranged in series between the 1st coil and the 2nd coil.
7. a kind of electrical power transmission system, possesses：Current-collecting device with power side coil；With with power transmission lateral coil, Yi Jixiang
The power transmission lateral coil provides the power transmission device of the power supply circuit of alternating electromotive force, the power transmission lateral coil and the power side coil
Magnetic coupling, electric power is transmitted from the power transmission device to the current-collecting device, wherein,
The power transmission device possesses：
The current detecting part detected to the electric current for flowing through the power transmission lateral coil,
The power transmission lateral coil is that the 1st coil is connected in series and formed with the 2nd coil,
The current detecting part is arranged in series between the 1st coil and the 2nd coil.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015128213 | 2015-06-26 | ||
| JP2015-128213 | 2015-06-26 | ||
| PCT/JP2016/067163 WO2016208402A1 (en) | 2015-06-26 | 2016-06-09 | Power transmitting device, power receiving device, and power transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107534318A true CN107534318A (en) | 2018-01-02 |
Family
ID=57585638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680021293.9A Pending CN107534318A (en) | 2015-06-26 | 2016-06-09 | Power transmission device, current-collecting device and electrical power transmission system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107534318A (en) |
| WO (1) | WO2016208402A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258242A (en) * | 2021-06-22 | 2021-08-13 | 之江实验室 | Eight-path orthogonal power combiner based on transformer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111937271A (en) * | 2018-03-29 | 2020-11-13 | 松下知识产权经营株式会社 | Power transmission module, power transmission device, and wireless power transmission system |
| JP7051649B2 (en) * | 2018-09-07 | 2022-04-11 | 株式会社東芝 | Magnetic coupling device and communication system |
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| JP2008236917A (en) * | 2007-03-20 | 2008-10-02 | Seiko Epson Corp | Non-contact power transmission apparatus |
| JP2008283791A (en) * | 2007-05-10 | 2008-11-20 | Olympus Corp | Radio power feeding system |
| JP2012139011A (en) * | 2010-12-27 | 2012-07-19 | Contec Co Ltd | Secondary power reception circuit of non-contact power supply facility |
| CN104167823A (en) * | 2013-05-16 | 2014-11-26 | 索尼公司 | Detecting device, power supply system, and detecting device control method |
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| CN113258242A (en) * | 2021-06-22 | 2021-08-13 | 之江实验室 | Eight-path orthogonal power combiner based on transformer |
| CN113258242B (en) * | 2021-06-22 | 2021-10-01 | 之江实验室 | Eight-path orthogonal power combiner based on transformer |
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