The content of the invention
It is a primary object of the present invention to provide a kind of device for converting electric energy based on wireless receiving, it is intended to which solving will be aerialHigh-frequency signal electric energy is converted into carry out the technical problem of wireless charging.
To achieve the above object, it is described to be based on nothing the invention provides a kind of device for converting electric energy based on wireless receivingLine receive device for converting electric energy include reception antenna, frequency selection circuit, rectification circuit and current output terminal, the reception antenna withThe frequency selection circuit series connection, the frequency selection circuit is connected with rectification circuit, and the rectification circuit is connected with the current output terminal；
The reception antenna is used for from the aerial signal for receiving predeterminated frequency and transmits a signal to frequency selection circuit；
The frequency selection circuit is used to the signal of budget frequency being filtered filtering；And
The rectification circuit is used to the signal after the filtering filtering is converted to charging current and exported to electric current to exportPort.
It is preferred that, the frequency selection circuit is composed in series by the first electric capacity and the first inductance.
It is preferred that, the device for converting electric energy based on wireless receiving also includes the second electric capacity, wherein, the frequency selection circuitConnected by second electric capacity with the rectification circuit.
It is preferred that, the rectification circuit includes the first diode, the second diode, the 3rd diode, the 4th diode, theFive diodes, the 6th diode, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity and the 6th electric capacity, wherein, first diode,It is connected in parallel between second diode, the 3rd diode, the 4th diode, the 5th diode, the anode of first diodeBy the 3rd capacitance connection between the negative electrode of the second diode, the anode of second diode and the negative electrode of the 3rd diodeBetween by the 4th capacitance connection, between the anode of the 3rd diode and the negative electrode of the 4th diode pass through the 5th electric capacity connectConnect, by the 6th capacitance connection between the anode of the 4th diode and the negative electrode of the 5th diode, first diode,Second diode, the 3rd diode, the 4th diode, the 5th diode, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity and the 6thThe parallel circuit that electric capacity is formed again with the 6th Diode series, wherein, the 3rd capacity earth and the described 1stThe plus earth of pole pipe.
It is preferred that, the 6th diode is connected with the current output terminal.
It is preferred that, the current output terminal includes charging port and the 7th electric capacity, wherein, the charging port and described theSeven electric capacity are in parallel, one end ground connection of the 7th electric capacity.
It is preferred that, the reception antenna is yagi aerial.
It is preferred that, the receives frequency of the reception antenna is 340 between 570MHz.
The present invention uses above-mentioned technical proposal, and the technique effect brought is：The present invention is by passing through frequency selection circuit and rectificationHigh-frequency signal is converted into electric current by circuit, and the electric current after conversion is inputted to electronic equipment to be charged by current output terminal,So as to realizing aerial remote charging, it is to avoid must be positioned over during electronic equipment wireless charging on coil device, improve nothingThe flexibility of line charging.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction withAccompanying drawing and preferred embodiment, to embodiment, structure, feature and its effect of the present invention, are described in detail as follows.It should manageSolution, the specific embodiments described herein are merely illustrative of the present invention, is not intended to limit the present invention.
Shown in reference picture 1, Fig. 1 is the structural representation of the device for converting electric energy of the invention based on wireless receiving.
Device for converting electric energy 1 of the present invention based on wireless receiving includes reception antenna 210, frequency selection circuit 220, rectificationCircuit 230 and current output terminal 240.The output end of the reception antenna 210 is connected with the input of the frequency selection circuit 220,The output end of the frequency selection circuit 220 is connected with the input of the rectification circuit 230, the output end of the rectification circuit 230Input also with the current output terminal 240 is connected.
The reception antenna 210 is used for from the aerial signal for receiving predeterminated frequency (for example, more than 440MHz frequency) simultaneouslyThe frequency selection circuit 220 is transmitted a signal to, the frequency selection circuit 220 is used to the signal of budget frequency being filtered filtering(for example, the signal of filtering less than 440MHz frequencies), the rectification circuit 230 is used to change the signal after the filtering filteringFor charging current and export to current output terminal mouthfuls 240.
The reception antenna 210 of the device for converting electric energy 20 based on wireless receiving receives aerial high energy signals and productionThe raw electric current for powering.In the present embodiment, the reception antenna 210 is yagi aerial, wherein, the reception antenna 210Receives frequency 340 between 570MHz.
Further, as described in Figure 2, the reception antenna 210 is connected with the frequency selection circuit 220, the frequency selection circuit220 are connected with rectification circuit 230, and the rectification circuit 230 is connected with the current output terminal 240.
Wherein, the frequency selection circuit 220 is composed in series by the first electric capacity C1 and the first inductance L1, wherein, the first electric capacity C1Preferably 100pf, the first inductance L1 are preferably 1300pH, and the first inductance L1 resonant frequency is about 440M.Wherein, described firstInductance L1 one end ground connection.
It is preferred that, the frequency selection circuit 220 selects 440M or so ac signal, completely cuts off direct current by the second electric capacity C2Electricity, is conveyed to rectification circuit 230.I.e. described frequency selection circuit 220 is connected by the second electric capacity C2 with rectification circuit 230.
The rectification circuit 230 includes six diodes (i.e. the first diode, the second diode, the 3rd diode, fourDiode, the 5th diode, the 6th diode) and four electric capacity (i.e. the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity and the 6th electricityHold), wherein, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5Between be connected in parallel, between the anode of the first diode D1 and the second diode D2 negative electrode pass through the 3rd electric capacity C3 connectConnect, the 4th electric capacity C4 connections, the described 3rd are passed through between the anode of the second diode D2 and the 3rd diode D3 negative electrodeBy the 5th electric capacity C5 connections between diode D3 anode and the 4th diode D4 negative electrode, the sun of the 4th diode D4By the 6th electric capacity C6 connections between pole and the 5th diode D5 negative electrode, the first diode D1, the second diode D2,Three diode D3, the 4th diode D4, the 5th diode D5, the 3rd electric capacity C3, the 4th electric capacity C4, the electricity of the 5th electric capacity C5 and the 6thHold the parallel circuits that are formed of C6 connect with the 6th diode D6 again, wherein, the 3rd electric capacity C3 is grounded and described theOne diode D1 plus earth.
The current output terminal 240 includes charging port (i.e. CON1 in Fig. 2) and the 7th electric capacity C7, wherein charging portIt is connected in parallel with the 7th electric capacity C7.Wherein, one end ground connection of the 7th electric capacity C7.The charging port and electronic equipmentConnect to charge to electronic equipment.
In the present embodiment, the rectification circuit 230 is five voltage doubling rectifing circuits, relatively low alternating voltage can be changed intoHigher DC voltage.Wherein, the output voltage of the rectification circuit 230 is 5 times of sizes of input voltage.Then the 6th is passed throughDiode D6 completely cuts off alternating current, and by the electric capacity C7 of electric capacity the 7th of voltage-drop loading to current output terminal 240, electronic equipment is (for exampleMobile phone) two ends be parallel on the electric capacity C7 of electric capacity the 7th of current output terminal 240 can be charged as electronic equipment charging.
It should be noted that C1, C2, C3, C4, C5, C6, C7 are preferably the electric capacity of 100pf sizes in Fig. 2, L1 is preferablyThe inductance of 1300pH sizes；D1, D2, D3, D4, D5, D6 are diode.
The device for converting electric energy 1 based on wireless receiving receives the high-frequency signal by the reception antenna, and leads toCross frequency selection circuit 220 and rectification circuit 230 and high-frequency signal (for example, 440MHz) is converted into electric current, the electric current after conversion passes throughCurrent output terminal 240 inputs to electronic equipment to be charged.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hairEquivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or between or be used in other related skills indirectlyArt field, is included within the scope of the present invention.