CN104767293A - Dynamic energy emitting-receiving structure of mixed type wireless power transmission system - Google Patents

Abstract

The invention discloses a dynamic energy emitting-receiving structure of a mixed type wireless power transmission system. The dynamic energy emitting-receiving structure comprises an energy emitting structure, a dynamic energy catching structure, a light rotary draught fan and a draught fan rotary matching shaft; the dynamic energy catching structure comprises three multi-turn rectangular copper pipe regions which are the same in structure, the three multi-turn rectangular copper pipe regions are fixedly connected with the draught fan rotary matching shaft through sides which are the same in length, every two multi-turn rectangular copper pipe regions are in 120-degree symmetry with respect to the draught fan rotary matching shaft, and the light rotary draught fan can drive the dynamic energy catching structure to rotate; wireless power supply is carried out on the dynamic energy catching structure by the energy emitting structure through a magnetic resonance mode; the dynamic energy catching structure is driven by the light rotary draught fan to rotate to cut magnetic lines sent by the energy emitting structure, and electromotive force can be generated; accordingly, energy higher than that of a static state can be obtained.

Description

A kind of dynamic power transmitting-receiving structure of hybrid wireless electric energy transmission system

Technical field

The present invention relates to a kind of radio energy transmission system, particularly relate to the dynamic power transmitting-receiving structure of hybrid wireless electric energy transmission system.

Background technology

In recent years, along with people's living standard improve constantly and explore intramundane gradually deeply, people there has also been new requirement to the transmission means of electric energy and transmission quality.Traditional delivery of electrical energy is mainly directly contacted by wire or conductor and carries out, and the spark that contact produces, skimming wear, carbon deposit involve that energized conductor is exposed etc. brings series of problems.Wireless power transmission is a kind of technology utilizing wireless radio transmission electric energy, proposed by Ni Gula tesla the earliest, compared with traditional delivery of electrical energy mode, the direct connection of electricity is there is not between power supply and electricity consumption in the process of wireless power transmission, avoid bare exposed conductor and contact sparking, there is the advantage such as use safety, convenience, thus receive concern and the attention of numerous research workers.Wireless power transmission technical applications widely, particularly in military affairs, mine, under water, be with a wide range of applications under the special and adverse circumstances of medical treatment, oil, traffic etc.Therefore, the research for wireless power transmission technology has very profound significance.

For the DC load having power supply voltage level, when transmitting power has in limited time, as the powerup issue of high-tension line on-line monitoring equipment, the powerup issue etc. of Internet of Things multisensor node, power demands needed for load need be reached by improving efficiency of transmission and other power.

Summary of the invention

Goal of the invention: for above-mentioned prior art, proposes a kind of dynamic power transmitting-receiving structure of hybrid wireless electric energy transmission system, improves the efficiency of transmission of radio energy transmission system and the output power needed for load and charging voltage grade.

Technical scheme: a kind of dynamic power transmitting-receiving structure of hybrid wireless electric energy transmission system, comprises the rotation of energy emitting structural, dynamic power capturing structure, light-duty rotation blower fan and blower fan and join axle; Wherein, described energy emitting structural comprises the first multiturn rectangle copper pipe territory, connects after elementary building-out capacitor and connect external power source in described first multiturn rectangle copper pipe territory; Described dynamic power capturing structure comprises the identical multiturn rectangle copper pipe territory of three structures and three high-frequency rectification stable-pressure devices, three multiturn rectangle copper pipe territories of described dynamic power capturing structure are all rotated by the identical limit of length and described blower fan joins axle and is fixedly connected with, and described three multiturn rectangle copper pipe territories rotate to join by described blower fan and are mutually 120 ° between two centered by axle and are symmetrical arranged; Connect respectively after a secondary compensation electric capacity and connect a high-frequency rectification stable-pressure device in described three multiturn rectangle copper pipe territories, the leading-out terminal of described three high-frequency rectification stable-pressure devices joins end to end successively, forms distributed cascade energy storage for power supply system; Described light-duty rotation blower fan is rotated by drive mechanism connecting fan joins axle, and the electric energy output end of described light-duty rotation blower fan accesses distributed cascade energy storage for power supply system by the 4th rectifying and voltage-stabilizing device.

Further, the length × wide=d in described first multiturn rectangle copper pipe territory ₁× d ₂, the length × wide=d in the total each multiturn rectangle copper pipe territory of described dynamic power capturing structure ₁× d ₃, described parameter d ₂and d ₃meet following relation: wherein N ₁be the coil turn in the first multiturn rectangle copper pipe territory, N ₂for the number of turn of dynamic power capturing structure total each multiturn rectangle copper pipe territory coil.

Beneficial effect: the dynamic power transmitting-receiving structure that the invention provides a kind of hybrid wireless electric energy transmission system, by energy emitting structural, dynamic power capturing structure, light-duty rotation blower fan and join axle, change space form and the trap state of energy capture structure, improve the efficiency of transmission of radio energy transmission system and the output power needed for load and charging voltage grade, improve flexibility and the stability of galvanic load supplying.The multiturn rectangle copper pipe territory that structure in dynamic power capturing structure is identical connects as the high-frequency rectification stable-pressure device that energy acceptance coil is corresponding with it, the rectifying and voltage-stabilizing device that light-duty rotation blower fan output is corresponding with it connects, each single rectifying and voltage-stabilizing device adds with the form para-electric barrier layer of series connection, and be equipped with big capacity electrolyte capacitor energy storage pressure stabilizing, be applicable to the energy storage of any radio energy transmission system, boosting and isolation and amplifier effect.

As the length × wide=d in the multiturn rectangle copper pipe territory in energy emitting structural ₁× d ₂, the length × wide=d in the total each multiturn rectangle copper pipe territory of dynamic power capturing structure ₁× d ₃, parameter d ₂and d ₃meet following relation: time, can realize under any circumstance, dynamic power receives all consistent with energy emitting structural than the size single energy of the energy that obtains of structure, and to receive the energy that structure obtains large.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is distributed cascade energy storage for power supply circuit system schematic diagram in the present invention.

Embodiment

Below in conjunction with accompanying drawing the present invention done and further explain.

As shown in Figure 1, a kind of dynamic power transmitting-receiving structure of hybrid wireless electric energy transmission system, comprises the rotation of energy emitting structural 1, dynamic power capturing structure 2, light-duty rotation blower fan 3 and blower fan and joins axle 4.Wherein, energy emitting structural 1 comprises length × wide=d ₁× d ₂multiturn rectangle copper pipe territory 11 and elementary building-out capacitor 12, connect after elementary building-out capacitor 12 and connect external power source by transmission cable 13 in multiturn rectangle copper pipe territory 11.

Dynamic power capturing structure 2 comprises three separate long × wide=d ₁× d ₃21, three, multiturn rectangle copper pipe territory secondary compensation electric capacity 22 and three high-frequency rectification stable-pressure devices 23.Three multiturn rectangle copper pipe territories 21 are all rotated by the identical limit of length and blower fan joins axle 4 and is fixedly connected with, and three multiturn rectangle copper pipe territories 21 rotate to join by blower fan and are mutually 120 ° between two centered by axle 4 and are symmetrical arranged.Each independently rectangle copper pipe territory is all furnished with small-sized high-frequency rectification stable-pressure device, and namely connect respectively after a secondary compensation electric capacity and connect a high-frequency rectification stable-pressure device in three multiturn rectangle copper pipe territories, forms three supply units.The leading-out terminal of three high-frequency rectification stable-pressure devices joins end to end all between two, and forms distributed cascade energy storage for power supply system.Energy emitting structural 1 and dynamic power capturing structure 2 need satisfied following condition on locus: it is parallel with multiturn rectangle copper pipe territory 11 that axle 4 is joined in blower fan rotation, rotate join axle 4 fixed position mid point vertical line is positioned at multiturn rectangle copper pipe territory 11 geometric center at the vertical point of place, multiturn rectangle copper pipe territory 11 plane through three multiturn rectangle copper pipe territories 21 with blower fan.Multiturn rectangle copper pipe territory 11 in energy emitting structural 1 receives the electric energy of external power source input, is powered by three multiturn rectangle copper pipe territories 21 of magnetic resonance to dynamic power capturing structure 2.

When in dynamic power capturing structure 2 blower fan rotate join axle 4 rotate static time, the total electromotive force of inducting in three multiturn rectangle copper pipe territories 11 in dynamic power capturing structure 2 is E _r.Light-duty rotation blower fan 3 can positive and negative Double-directional rotary when there being free air-flow to move, light-duty rotation blower fan 3 is rotated by drive mechanism connecting fan joins axle 4, in the present embodiment, drive mechanism is 1: 1 rolling bearing, be fixed on the blower fan rotation dynamic power capturing structure 2 of joining on axle 4 by light-duty rotation blower fan 3 drive to rotate, dynamic power capturing structure 2 magnetic line of force that rotation meeting ablation energy emitting structural 1 sends under the drive of light-duty rotation blower fan 3 produces and lively motional electromotive force E _{r '}, can obtain thus and obtain higher energy than during static state.The electric energy output end of light-duty rotation blower fan 3 connects the input of the 4th rectifying and voltage-stabilizing device 4, forms the load supplying output of radio energy transmission system after the output of the 4th rectifying and voltage-stabilizing device 4 and distributed cascade energy storage for power supply Cascade System.Corresponding ENERGY E can be obtained in light-duty rotation blower fan 3 motion process, be connected with the Energy transmission end of dynamic power capturing structure 2 by the 4th rectifying and voltage-stabilizing device 5, make the electromotive force E that light-duty rotation blower fan 3 exports _wGthe electromotive force that all can export with dynamic power capturing structure 2 with power superposes with power serial.

Cloth cascade energy storage for power supply system as shown in Figure 2, high-frequency rectification stable-pressure device wherein all adopts single phase bridge type rectifier circu.The single-phase bridge rectification system that the multiturn rectangle copper pipe territory 21 of dynamic power capturing structure 2 is corresponding with it connects, the single-phase bridge rectification system that light-duty rotation blower fan 2 output is corresponding with it connects, each single-phase bridge rectification system adds with the form para-electric barrier layer of series connection, and be equipped with big capacity electrolyte capacitor 6 energy storage pressure stabilizing, be applicable to the energy storage of any radio energy transmission system, boosting and isolation and amplifier effect.

Rectangle copper pipe domain sizes in energy emitting structural and dynamic power capturing structure meets relation: time, under the condition that transmitting power is identical, the energy that time static, dynamic power capturing structure obtains is greater than the size single energy all consistent with multiturn rectangle copper pipe territory in energy emitting structural with structure and receives the energy that structure obtains.Its principle is: if single energy receives effective receptor area S of structure ₁=d ₁× d ₂, effective receptor area of dynamic power capturing structure is S2=d1 × d3 × [1+abs (cos (2 π/3)+cos (-2 π/3))], supposes power P during single energy reception structure ₁, dynamic power receives power P during structure ₂, the average magnetic field calculated corresponding to dynamic power capturing structure is wherein R is approximately transmission range, μ ₀for magnetic constant, for the current element in multiturn rectangle copper pipe territory 21, for element length points to the unit vector of point of observation, the i.e. source point unit vector of showing up a little, source point is arbitrary in energy emitting structural, field point is any point in space, what calculate is the magnetic field intensity between energy launching and receiving herein, so field point now gets a bit calculating in dynamic power capturing structure; And then calculate $P_1={\left[N_1{d}_1{d}_2\frac{{\mathrm{dB}}_z\left(t\right)}{\mathrm{dt}}\right]}^2\·\frac{r_{\mathrm{eq}}}{{(r_{\mathrm{eq}}+r_s)}^2},P_2={\left[N_2{d}_1{d}_3\frac{{\mathrm{dB}}_z\left(t\right)}{\mathrm{dt}}(1+\mathrm{abs}(2\·\cos \left(\frac{2\mathrm{\π}}{3}\right)))\right]}^2\·\frac{r_{\mathrm{eq}}}{{(r_{\mathrm{eq}}+r_s)}^2},$ Wherein r _sfor the equiva lent impedance of hybrid wireless electric energy transmission system, r _eqfor load equivalent impedance, N ₁be the coil turn in the first multiturn rectangle copper pipe territory, N ₂for the number of turn of dynamic power capturing structure total each multiturn rectangle copper pipe territory coil, B _zt () is z-axis direction induction level, when time, meet P ₂> P ₁, determine d according to practical application space ₂with d ₃and d ₁size.

The dynamic power transmitting-receiving structure of hybrid wireless electric energy transmission system of the present invention has following features: 1, be applicable to long distance, multinode and wireless charging, the power demands of the outdoor small-sized equipment of primary side electricity shortage, as the powerup issue of high-tension line on-line monitoring equipment, the powerup issue etc. of Internet of Things multisensor node; 2, more high efficiencyly under the prerequisite of certain input power filling, for electric flux needed for load can be provided; 3, better regenerative resource can be utilized in conjunction with light-duty rotation blower fan, for outdoor monitoring equipment provides more reliable and more stable energy safeguard; 4, the multiple single-phase bridge rectification systems being applied to system form distributed cascade energy storage for power supply system, can reach the advantage of electromotive force pump liter, energy supply increase.

The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (2)

1. a dynamic power transmitting-receiving structure for hybrid wireless electric energy transmission system, is characterized in that: comprise the rotation of energy emitting structural, dynamic power capturing structure, light-duty rotation blower fan and blower fan and join axle; Wherein, described energy emitting structural comprises the first multiturn rectangle copper pipe territory, connects after elementary building-out capacitor and connect external power source in described first multiturn rectangle copper pipe territory; Described dynamic power capturing structure comprises the identical multiturn rectangle copper pipe territory of three structures and three high-frequency rectification stable-pressure devices, three multiturn rectangle copper pipe territories of described dynamic power capturing structure are all rotated by the identical limit of length and described blower fan joins axle and is fixedly connected with, and described three multiturn rectangle copper pipe territories rotate to join by described blower fan and are mutually 120 ° between two centered by axle and are symmetrical arranged; Connect respectively after a secondary compensation electric capacity and connect a high-frequency rectification stable-pressure device in described three multiturn rectangle copper pipe territories, the leading-out terminal of described three high-frequency rectification stable-pressure devices joins end to end successively, forms distributed cascade energy storage for power supply system; Described light-duty rotation blower fan is rotated by drive mechanism connecting fan joins axle, and the electric energy output end of described light-duty rotation blower fan accesses distributed cascade energy storage for power supply system by the 4th rectifying and voltage-stabilizing device.

2. the dynamic power transmitting-receiving structure of a kind of hybrid wireless electric energy transmission system according to claim 1, is characterized in that: the length × wide=d in described first multiturn rectangle copper pipe territory ₁× d ₂, the length × wide=d in the total each multiturn rectangle copper pipe territory of described dynamic power capturing structure ₁× d ₃, described parameter d ₂and d ₃meet following relation: wherein N ₁be the coil turn in the first multiturn rectangle copper pipe territory, N ₂for the number of turn of dynamic power capturing structure total each multiturn rectangle copper pipe territory coil.