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CN101594010A - Energy transmission system and energy transmission end device - Google Patents

Energy transmission system and energy transmission end device Download PDF

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Publication number
CN101594010A
CN101594010A CNA2009101456186A CN200910145618A CN101594010A CN 101594010 A CN101594010 A CN 101594010A CN A2009101456186 A CNA2009101456186 A CN A2009101456186A CN 200910145618 A CN200910145618 A CN 200910145618A CN 101594010 A CN101594010 A CN 101594010A
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resonator
energy
signal
metal coil
energy signal
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何闿廷
林志隆
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Darfon Electronics Suzhou Co Ltd
Darfon Electronics Corp
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Darfon Electronics Suzhou Co Ltd
Darfon Electronics Corp
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Priority to CNA2009101456186A priority patent/CN101594010A/en
Publication of CN101594010A publication Critical patent/CN101594010A/en
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Abstract

能量传输系统与能量传输端装置，该能量传输系统包括一能量传输端装置，其包括第一金属线圈，该第一部份以第一方向绕制，且具有N匝，该第二部份以一第二方向绕制，且具有M匝，该第一部份与该第二部份相邻，该第一金属线圈用以实现等效电感及第一耦合电路；第一电容，接收一输入能量讯号，该等效电感与该第一电容形成电感电容谐振器，及第一共振器，该第一耦合电路上的该第一内部能量讯号耦合至该第一共振器，以使该第一共振器具有一第二内部能量讯号；以及能量接收端装置，该第二内部能量讯号耦合至该能量接收端装置，使得该能量接收端装置具有第三内部能量讯号。

Figure 200910145618

An energy transmission system and an energy transmission end device, the energy transmission system includes an energy transmission end device, which includes a first metal coil, the first part is wound in a first direction and has N turns, the second part is Wound in a second direction and has M turns, the first part is adjacent to the second part, the first metal coil is used to realize the equivalent inductance and the first coupling circuit; the first capacitor receives an input energy signal, the equivalent inductance and the first capacitance form an inductance-capacitance resonator, and the first resonator, the first internal energy signal on the first coupling circuit is coupled to the first resonator, so that the first The resonator has a second internal energy signal; and an energy receiving device, the second internal energy signal is coupled to the energy receiving device such that the energy receiving device has a third internal energy signal.

Figure 200910145618

Description

Energy transmission system and energy transmission end device
Technical field
The invention relates to a kind of energy transmission system and energy transmission end device, and particularly relevant for a kind of energy transmission system and energy transmission end device with smaller size smaller.
Background technology
Science and technology is maked rapid progress, and human development goes out a feast for the eyes electronic product satisfying its demand, yet many electronic products system provides its required power supply by the energy transmission system of wire transmission mode, and for example transformer etc. is real not convenient.In order to allow the user can unconstrained use electronic product, the energy transmission system of wireless transmission method constantly be developed, and how to promote the efficiency of transmission of energy transmission system, becomes one of many targets of being pursued.
In an example, comprise resonator, feed in winding and resonator or the like in the energy transmission end device of energy transmission system.When the energy transmission end device transmission of power signal of energy transmission system, the energy signal can see through resonator go out required frequency with resonance, and by feed in winding the energy signal is coupled to resonator.Resonator again with the energy signal wirelessly transferring to the energy receiving end device of energy transmission system, so that electronic product obtains the energy signal.Yet in transmission course, the inductor of resonator can cause energy loss, therefore inductor and feed in winding is integrated into wire coil.
Yet, wire coil is to satisfy the inductance value of inductor to increase its number of turn, so, will the magnetic flux of wire coil relatively be risen, and mutual inductance value between wire coil and resonator and the coupling quantitative change between wire coil and resonator are big, have caused wire coil and resonator impedance not to match.If will reach impedance matching, certainly will increase the spacing of wire coil and resonator, reduce the mutual inductance value of wire coil and resonator, so increased the volume of energy transmission system also.
Summary of the invention
In view of this, purpose of the present invention is for proposing a kind of energy transmission system.Energy transmission system is integrated into wire coil with feed in winding and inductor, and wire coil is divided into two partly, and respectively with the different directions coiling, behind galvanization to reduce the equivalent magnetic flux of wire coil.So, under the situation of the spacing that need not increase wire coil and resonator, make that the impedance between wire coil and the resonator is mated mutually, further can reduce the volume of energy transmission system.
According to an aspect of the present invention, a kind of energy transmission system is proposed.Energy transmission system comprises energy transmission end device and energy receiving end device, and energy transmission end device comprises first wire coil, first electric capacity and first resonator.First wire coil has first part and second part, first partly with the first direction coiling, and has the N circle, second partly with the second direction coiling, and has the M circle, first is partly partly adjacent with second, and first wire coil is in order to realize the equivalent inductance and first coupling circuit, and N and M are arithmetic number.First electric capacity is in order to receiving the intake signal, and first electric capacity and equivalent inductance formation inductance capacitance resonator in order to being converted to the first internal energy signal according to the intake signal, and provide first internal energy signal to the first coupling circuit.The first internal energy signal on first coupling circuit is coupled to first resonator, so that first resonator has the second internal energy signal.The second internal energy signal is coupled to the energy receiving end device, makes the energy receiving end device have the 3rd internal energy signal.
According to a further aspect in the invention, a kind of energy transform device is proposed, in order to wirelessly to provide output energy signal to the energy receiving end device.Energy transmission end device comprises first wire coil, first electric capacity and first resonator.First wire coil has first part and second part, and first partly with the first direction coiling, and has the N circle, second partly with the second direction coiling, and has the M circle, and first is partly partly adjacent with second, first wire coil is realized an equivalent inductance and first coupling circuit, and N and M are arithmetic number.First electric capacity receives the intake signal, and first electric capacity and equivalent inductance formation inductance capacitance resonator in order to being converted to the first internal energy signal according to the intake signal, and provide first internal energy signal to the first coupling circuit.First resonator, the first internal energy signal on first coupling circuit is coupled to first resonator, so that first resonator has the second internal energy signal.Wherein, the second internal energy signal on first resonator more is coupled to the energy receiving end device, to provide output energy signal to the energy receiving end device.For foregoing of the present invention can be become apparent, hereinafter for embodiment, and the conjunction with figs. formula, be described in detail below.
Description of drawings
Fig. 1 is the block diagram of the energy transmission system of one embodiment of the invention.
Fig. 2 is the circuit diagram of the energy transmission system of application drawing 1.
Fig. 3 A is an example of wire coil among Fig. 2.
Fig. 3 B be among Fig. 2 wire coil in the end view of an example of resonator one side.
Fig. 4 be among Fig. 2 wire coil in another routine end view of resonator one side.
Embodiment
The present invention proposes a kind of energy transmission system, comprise energy transmission end device and draw together the energy receiving end device.Energy transmission end device comprises first wire coil, first electric capacity and first resonator.First wire coil has first part and second part, first partly with the first direction coiling, and has the N circle, second partly with the second direction coiling, and has the M circle, first is partly partly adjacent with second, and first wire coil is in order to realize the equivalent inductance and first coupling circuit, and N and M are arithmetic number.First electric capacity receives the intake signal, and first electric capacity and equivalent inductance formation inductance capacitance resonator in order to being converted to the first internal energy signal according to the intake signal, and provide first internal energy signal to the first coupling circuit.First resonator, the first internal energy signal on first coupling circuit is coupled to first resonator, so that first resonator has the second internal energy signal.The energy receiving end device, the second internal energy signal is coupled to the energy receiving end device, makes the energy receiving end device have the 3rd internal energy signal.Now be described as follows for an embodiment.
Please refer to Fig. 1, it is the block diagram of the energy transmission system of one embodiment of the invention.Energy transmission system 100 comprises energy transmission end device 10 and energy receiving end device 30.Energy transmission end device 10 comprises wire coil M1, capacitor C 1 and resonator 12.Capacitor C 1 is coupled to each other with wire coil M1, and capacitor C 1 receives intake signal Pi.For instance, intake signal Pi is a rectangular energy signal.
Please refer to Fig. 2, it is the detailed circuit diagram of energy transmission system among Fig. 1.Wire coil M1 is for example in order to realize equivalent inductance L1 and coupling circuit Cp1.Equivalent inductance L1 and capacitor C 1 forms inductance capacitance resonator 14, in order to being converted to internal energy signal Pa according to intake signal Pi, and internal energy signal Pa provided to coupling circuit Cp1.For instance, internal energy signal Pa is a string wave energy signal.The intake signal of present embodiment is not as restriction, and in other example, energy signal Pa also can be the signal of triangular wave or other waveform.
Energy signal Pa on the coupling circuit Cp1 is coupled to resonator 12, makes resonator 12 have internal energy signal Pb.For instance, resonator 12 comprises wire coil M2 and capacitor C 2.The end of wire coil M2 is coupled to an end of capacitor C 2, and the other end of wire coil M2 and capacitor C 2 is coupled to contact A1 and contact A2 respectively.Wherein, contact A1 and contact A2 can be connected to ground, and in another example, contact A1 and contact A2 also can be not attached to ground.Wire coil M2 realizes equivalent inductance, forms the inductance capacitance resonator with capacitor C 2.
Internal energy signal Pb on the resonator 12 more is coupled to energy receiving end device 30, makes energy receiving end device 30 have the internal energy signal.For instance, energy receiving end device 30 comprises resonator 32 and coupling circuit 34.Internal energy signal Pb on the resonator 12 is coupled to the resonator 32 of energy receiving end device 30, makes resonator 32 have internal energy signal Pc.Internal energy signal Pc on the resonator 32 is coupled to coupling circuit 34, and so, coupling circuit 34 can provide output energy signal Po accordingly.
For instance, resonator 32 comprises wire coil M3 and capacitor C 3.The end of wire coil M3 is coupled to an end of capacitor C 3, and the other end of wire coil M3 and capacitor C 3 is coupled to contact A3 and contact A4 respectively.Wherein, contact A3 and contact A4 can be connected to ground, and in another example, contact A3 and contact A4 also can be not attached to ground.Wire coil M3 realizes equivalent inductance, forms the inductance capacitance resonator with capacitor C 3.
For instance, wire coil M1 need have higher coil turn to realize equivalent inductance L1 and coupling circuit Cp1 effectively.Traditionally, to produce higher magnetic flux after having the wire coil energising of higher coil turn, for keeping the mutual inductance value between wire coil and resonator, the coupling amount needs decline accordingly, the impedance of wire coil and resonator promptly must increase spacing accordingly, so that can be mated mutually.In an example, wire coil M1 is divided into two partly coilings with different directions, to reduce the equivalent magnetic flux that wire coil M1 produces.So, keeping under the same mutual inductance value, because of the decline of coupling amount, apart from can descending accordingly, and wire coil M1 and resonator 12 still can reach impedance matching between 12 of wire coil M1 and the resonators.Next, lift a for example explanation down now.
Please refer to Fig. 3 A, it is an example of wire coil among Fig. 2.Wire coil M1 has the first partly S1 and second S2 partly, first partly S1 and have the N circle with direction D1 coiling, second partly with direction D2 coiling, and has the M circle, first partly S1 is adjacent with the second part S2, N and M are arithmetic number.For instance, if wire coil M1 originally had five circles, it is divided into partly S2 of the first part S1 and second, and it have three circles and two circles respectively.The direction D2 of the coiling direction D1 of the first part S1 and the second part S2 is for example opposite each other.
When electric current flows in the initiating terminal T1 of the first part S1 and by direction D1, and in the terminal T2 of the second part S2 and after by direction D2 outflow, first partly S1 be opposite with the second part magnetic flux that S2 produced, make the equivalent magnetic flux of wire coil M1 correspond to the magnetic flux of a circle wire coil in fact.So, because of the decline of coupling amount, spacing can descend accordingly between wire coil M1 and the resonator 12, and wire coil M1 still equates because of the mutual inductance value with resonator 12 thereby can reach impedance matching.
Though, present embodiment first partly S1 and the second part S2 be inequality with the number of turn that has be that example explains, so not as restriction.For instance, first partly the number of turn that has of S1 and the second part S2 also can be identical.When the first part S1 had the identical number of turn with the second part S2, the equivalent magnetic flux that wire coil M1 produces was near zero.So, can make energy transmission end device 10 have lower electromagnetic energy on the whole.So, can make easier electromagnetic interference (Electro Magnetic Interference, regulation EMI) that meets Related product of energy transmission end device 10 energy.Now lifting an example is described in detail as follows.
Please be simultaneously with reference to Fig. 2 and Fig. 3 B, Fig. 3 B be among Fig. 2 wire coil in the end view of an example of resonator one side.Resonator 12 is positioned on the isoplanar with wire coil M1, and the spacing of wire coil M1 and resonator 12 is essentially zero.The axis parallel of the axle center of resonator 12 and wire coil M1, for example the axle center of resonator 12 is parallel in fact with the axle center of the second part S2 with the first part S1 of wire coil M1, but not as restriction.
For instance, the wire coil M2 of resonator 12 is identical with the sense of current of the first part S1 of wire coil M1, and it produces the magnetic flux of first direction.Wire coil M2 is opposite with the first part S1 (promptly being the sense of current of wire coil M2) with the sense of current of the second part S2 of wire coil M1, it produces the magnetic flux of second direction and the magnetic flux of first direction respectively, wherein first and second direction rightabout each other each other.In this example, the magnetic energy coupling amount of the magnetic flux that direction is identical generation positive polarity coupled to each other, and the magnetic energy coupling amount of the opposite magnetic flux generation negative polarity coupled to each other of direction.For instance, first partly the magnetic energy coupling amount that produces of the regional b of S1 and wire coil M2 definition and by second partly the magnetic energy coupling amount of the regional d generation that defines of S2 and wire coil M2 have first polarity (for example being positive polarity) accordingly.By first partly the magnetic energy coupling amount that produces of the regional a of S1 and wire coil M2 definition with by second partly S2 and by second partly the magnetic energy coupling amount of the regional c generation that defines of S2 and wire coil M2 have second polarity (for example being negative polarity) accordingly.The magnetic energy coupling amount that the equivalent coupled amount of wire coil M1 and M2 is produced by aforementioned each regional a-d and decide, and see through the big I of the area corresponding change wire coil M1 of adjustment region a-d and the equivalent magnetic energy coupling amount of M2.Yet, more can see through the area of adjusting wire coil M2 coiling, relatively change the polarity of the magnetic energy coupling amount of regional a-d generation, and then change the equivalent magnetic energy coupling amount of wire coil M1 and M2.Now lifting another example is described as follows.
Please refer to Fig. 4, its be among Fig. 2 wire coil in another routine end view of resonator one side.Please be simultaneously with reference to Fig. 3 B and Fig. 4, for instance, suppose that the sense of current and Fig. 3 are described identical, compared to regional a and regional b, the regional a1 of wire coil M2A and the S1A of first definition only has single polarity (for example being positive polarity), compared to regional c and regional d, the regional a2 of wire coil M2A and second portion S1A definition has single polarity (for example being negative polarity), so, the magnetic energy coupling amount that produces by aforesaid regional a1, regional a2 of the equivalent coupled amount of wire coil M1A and M2A and decide.Though present embodiment explains as example, not as restriction, as long as wire coil M1A first partly S1A with second partly the zone that defines of S2A and wire coil M2A can be along with needed coupling amount adjustment person, all within the scope of the invention.
The wire coil of disclosed energy transmission system of the above embodiment of the present invention and energy transmission end device can reduce equivalent magnetic flux, make mutual inductance value between wire coil and resonator and spacing relatively descend and still can effectively reach impedance matching, and then dwindle the volume of energy transform device and system, increase its application category.

Claims (12)

1.一种能量传输系统，其特征在于包括：1. An energy transmission system, characterized in that it comprises: 一能量传输端装置，包括：An energy transmission end device, comprising: 第一金属线圈，具有第一部份与第二部份，该第一部份以第一方向绕制，且具有N匝，该第二部份以一第二方向绕制，且具有M匝，该第一部份与该第二部份相邻，该第一金属线圈用以实现等效电感及第一耦合电路，N与M为正实数；The first metal coil has a first part and a second part, the first part is wound in a first direction and has N turns, the second part is wound in a second direction and has M turns , the first part is adjacent to the second part, the first metal coil is used to realize the equivalent inductance and the first coupling circuit, N and M are positive real numbers; 第一电容，接收一输入能量讯号，该等效电感与该第一电容形成电感电容谐振器，用以根据该输入能量讯号转换得到第一内部能量讯号，并提供该第一内部能量讯号至该第一耦合电路；及The first capacitor receives an input energy signal, the equivalent inductance and the first capacitor form an inductance-capacitance resonator, which is used to convert the input energy signal to obtain a first internal energy signal, and provide the first internal energy signal to the a first coupling circuit; and 第一共振器，该第一耦合电路上的该第一内部能量讯号耦合至该第一共振器，以使该第一共振器具有一第二内部能量讯号；以及a first resonator to which the first internal energy signal on the first coupling circuit is coupled such that the first resonator has a second internal energy signal; and 能量接收端装置，该第二内部能量讯号耦合至该能量接收端装置，使得该能量接收端装置具有第三内部能量讯号。The energy receiving device, the second internal energy signal is coupled to the energy receiving device, so that the energy receiving device has a third internal energy signal. 2.如权利要求1所述的能量传输系统，其特征在于该第一共振器包括：2. The energy transfer system of claim 1, wherein the first resonator comprises: 第二金属线圈，该第二金属线圈的一端接地；以及a second metal coil having one end grounded; and 第二电容，该第二电容的一端电性连接该第二金属线圈的另一端，该第二电容的另一端接地。A second capacitor, one end of the second capacitor is electrically connected to the other end of the second metal coil, and the other end of the second capacitor is grounded. 3.如权利要求1所述的能量传输系统，其特征在于该能量接收端装置包括：3. The energy transmission system according to claim 1, characterized in that the energy receiving end device comprises: 第二共振器，该第一共振器上的该第二内部能量讯号系耦合至该第二共振器，以使该第二共振器具有该第三内部能量讯号；以及a second resonator to which the second internal energy signal on the first resonator is coupled such that the second resonator has the third internal energy signal; and 第二耦合电路，该第二共振器上的该第三内部能量讯号耦合至该第二耦合电路，以输出一输出能量讯号。The second coupling circuit, the third internal energy signal on the second resonator is coupled to the second coupling circuit to output an output energy signal. 4.如权利要求1所述的能量传输系统，其特征在于该第二共振器包括：4. The energy transfer system of claim 1, wherein the second resonator comprises: 第三金属线圈，该第三金属线圈的一端接地；以及a third metal coil, one end of which is grounded; and 第三电容，该第三电容的一端电性连接该第三金属线圈的另一端，该第三电容的另一端接地。A third capacitor, one end of the third capacitor is electrically connected to the other end of the third metal coil, and the other end of the third capacitor is grounded. 5.如权利要求1所述的能量传输系统，其特征在于该输入能量讯号为一方波讯号，该方波讯号经由该电感电容谐振器以形成一弦波讯号。5. The energy transmission system according to claim 1, wherein the input energy signal is a square wave signal, and the square wave signal passes through the LC resonator to form a sine wave signal. 6.如权利要求1所述的能量传输装置，其特征在于该第一金属线圈位于该第一共振器的一侧，并且相隔一间距；该间距的大小与该第一金属线圈的该第二部份的磁通量相关。6. The energy transmission device according to claim 1, wherein the first metal coil is located on one side of the first resonator, and is separated by a distance; the size of the distance is the same as that of the second metal coil of the first metal coil. Part of the magnetic flux is related. 7.如权利要求1所述的能量传输装置，其中，该第一共振器的轴心与该第一金属线圈的轴心实质上平行。7. The energy transmission device as claimed in claim 1, wherein an axis of the first resonator is substantially parallel to an axis of the first metal coil. 8.一种能量传输端装置，用以无线地提供一输出能量讯号至一能量接收端装置，其特征在于该能量传输端装置包括：8. An energy transmission device for wirelessly providing an output energy signal to an energy receiving device, characterized in that the energy transmission device includes: 第一金属线圈，具有第一部份与第二部份，该第一部份以第一方向绕制，且具有N匝，该第二部份以第二方向绕制，且具有M匝，该第一部份与该第二部份相邻，该第一金属线圈并用以接收实现等效电感及第一耦合电路，N与M为正实数；The first metal coil has a first part and a second part, the first part is wound in a first direction and has N turns, the second part is wound in a second direction and has M turns, The first part is adjacent to the second part, and the first metal coil is used to receive and implement an equivalent inductance and a first coupling circuit, and N and M are positive real numbers; 第一电容，用以接收一输入能量讯号，该等效电感与该第一电容形成电感电容谐振器，用以根据该输入能量讯号转换得到第一内部能量讯号，并提供该第一内部能量讯号至该第一耦合电路；以及The first capacitor is used to receive an input energy signal, and the equivalent inductance and the first capacitor form an inductance-capacitance resonator, which is used to convert the input energy signal to obtain a first internal energy signal and provide the first internal energy signal to the first coupling circuit; and 第一共振器，该第一耦合电路上的该第一内部能量讯号耦合至该第一共振器，以使该第一共振器具有一第二内部能量讯号；a first resonator, the first internal energy signal on the first coupling circuit is coupled to the first resonator, so that the first resonator has a second internal energy signal; 其中，该第一共振器上的该第二内部能量讯号更耦合至该能量接收端装置，以提供该输出能量讯号至该能量接收端装置。Wherein, the second internal energy signal on the first resonator is further coupled to the energy receiving device to provide the output energy signal to the energy receiving device. 9.如权利要求8所述的能量传输端装置，其特征在于该第一共振器包括：9. The energy transmission device according to claim 8, wherein the first resonator comprises: 第二金属线圈，该第二金属线圈的一端接地；以及a second metal coil having one end grounded; and 第二电容，该第二电容的一端电性连接该第二金属线圈的另一端，该第二电容的另一端系接地。A second capacitor, one end of the second capacitor is electrically connected to the other end of the second metal coil, and the other end of the second capacitor is grounded. 10.如权利要求8所述的能量传输端装置，其特征在于该输入能量讯号为一方波讯号，该方波讯号经由该电感电容谐振器以形成一弦波讯号。10. The energy transmission terminal device according to claim 8, wherein the input energy signal is a square wave signal, and the square wave signal passes through the LC resonator to form a sine wave signal. 11.如权利要求8所述的能量传输端装置，其特征在于，该第一金属线圈位于该第一共振器的一侧，并且相隔一间距；该间距的大小与该第一金属线圈的该第二部份的磁通量相关。11. The energy transmission terminal device according to claim 8, wherein the first metal coil is located on one side of the first resonator and separated by a distance; the size of the distance is the same as that of the first metal coil The second part is related to the magnetic flux. 12.如权利要求8所述的能量传输端装置，其特征在于该第一共振器的轴心与该第一金属线圈的轴心平行。12. The energy transmission end device as claimed in claim 8, wherein the axis of the first resonator is parallel to the axis of the first metal coil.
CNA2009101456186A 2009-04-24 2009-05-15 Energy transmission system and energy transmission end device Pending CN101594010A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101854086A (en) * 2010-04-30 2010-10-06 中山大学 A wireless energy transmission device with high quality factor
CN103370850A (en) * 2011-02-04 2013-10-23 日东电工株式会社 Wireless power-supply system
CN103915907A (en) * 2014-03-25 2014-07-09 复旦大学 Primary-secondary self-coupling magnetic resonance wireless power transmission device and operation method thereof
CN106374636A (en) * 2016-10-28 2017-02-01 天津工业大学 A novel mid-distance resonant wireless power transmission method and device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101854086A (en) * 2010-04-30 2010-10-06 中山大学 A wireless energy transmission device with high quality factor
CN103370850A (en) * 2011-02-04 2013-10-23 日东电工株式会社 Wireless power-supply system
US9461506B2 (en) 2011-02-04 2016-10-04 Nitto Denko Corporation Wireless power-supply system
CN103915907A (en) * 2014-03-25 2014-07-09 复旦大学 Primary-secondary self-coupling magnetic resonance wireless power transmission device and operation method thereof
CN106374636A (en) * 2016-10-28 2017-02-01 天津工业大学 A novel mid-distance resonant wireless power transmission method and device
CN106374636B (en) * 2016-10-28 2019-11-12 天津工业大学 Method and device for mid-distance resonant wireless power transmission

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