CN102544756A - Near-field and far-field universal wireless charging tray antenna - Google Patents
Near-field and far-field universal wireless charging tray antenna Download PDFInfo
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- CN102544756A CN102544756A CN2012100406853A CN201210040685A CN102544756A CN 102544756 A CN102544756 A CN 102544756A CN 2012100406853 A CN2012100406853 A CN 2012100406853A CN 201210040685 A CN201210040685 A CN 201210040685A CN 102544756 A CN102544756 A CN 102544756A
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Abstract
The invention discloses a near-field and far-field universal wireless charging tray antenna, which comprises a shell, wherein a main board and a liquid crystal display module are arranged in the shell, the main board is a circuit board which has more than three layers, and a front side comprises patch antennas which are distributed into a matrix, mutual inductors which are alternatively arrayed among the patch antennas and infrared geminate transistors which are respectively arranged in the mutual inductors; a back side comprises a near-field wireless charging module, a far-field wireless charging module, a sensor module and a control module; interlayer circuit boards are all circuit routing layers; the control module is connected with the liquid crystal display module, the near-field wireless charging module, the far-field wireless charging module and the sensor module through data lines; and the front side circuit and the back side circuit of the main board are connected via through holes. The near-field and far-field universal wireless charging tray antenna can make the wireless charging tray antenna have a near-field and far-field charging function. A sensor is used to detect charging equipment, the modules which are not required to work are closed, the energy emission direction of the antenna matrix is controlled, and accordingly, the energy is saved.
Description
Technical field
The present invention relates to the electronic product wireless charging device, be specifically related to a kind of near field and far field wireless universal charging pallet antenna.
Background technology
Maturation along with the wireless charging technology; The raising of wireless charging efficient is added the wireless charging technology and has been exempted the dependence of traditional charging modes to socket, and safety is with convenient more; So increasing product has adopted the wireless charging technology; Estimate that following this wireless charging technology can be widely used in the daily life, such as occasions such as office, airport, hotels, provides great facility to daily life.Yet existing wireless charging is main with the near field charging modes that adopts the coil mutual coupling mainly, adopts the charging device of near field wireless charging technology need equipment to be charged be placed on energy emission source surface, so also has certain inconvenience.
Summary of the invention
In order to overcome the near excessively shortcoming of near field wireless charging device operating distance, make wireless charging device have near field and far field charge function concurrently, the present invention has designed the general wireless charging pallet antenna in a kind of near field and far field.
To achieve these goals, the technical scheme of the present invention's employing is following:
Near field and far field wireless universal charging pallet antenna comprise shell; Enclosure has main circuit board and LCD MODULE; Main circuit board is a circuit board more than three layers, the main circuit board front comprise matrix distribution the paster antenna battle array, be arranged alternately in the mutual inductor between the paster antenna battle array and be arranged on the infrared mutual-tube in the middle of each mutual inductor; The main circuit board back side comprises near field wireless charging module, far field wireless charging module, sensor assembly and control module; All intermediate layer circuit boards are the circuit trace layer; Control module is connected with LCD MODULE through data wire; Control module also is connected through data wire with sensor assembly with near field wireless charging module, far field wireless charging module; Each paster antenna is connected with the far field wireless charging module at the main circuit board back side through through hole separately; The through hole that the two ends of each mutual inductor are passed through separately respectively is connected with the near field wireless charging module at the main circuit board back side, and every pair of infrared mutual-tube is connected with sensor assembly.
Said far field wireless charging module produces sine wave signal by a signal source; After the amplifier amplification; Be divided into ten six road sine wave signals through one minute four power splitter of two-stage again; Each road sine wave signal is all successively through RF switch, controllable phase shifter, power amplifier and band pass filter, and last sine wave signal is passed to paster antenna through microstrip line.
Said near field wireless charging module produces low frequency signal by control module, and through being divided into nine road signals behind the low pass filter, each road signal all passes through a gate-controlled switch, and then passes to mutual inductor after by a N type FET signal being amplified.
Said sensor assembly comprises infrared mutual-tube, and the infrared sensor signal that the circuit that infrared mutual-tube is formed produces is passed to control module through data wire.
Said control module is a fpga chip, and RF switch control signal and phase control signal that fpga chip produces are passed to RF switch and controllable phase shifter in the wireless charging module of far field respectively through data wire; The switch controlling signal that fpga chip produces is passed to the gate-controlled switch in the wireless charging module of near field through data wire, and the low frequency signal that fpga chip produces is as the input signal of near field wireless charging module; The liquid crystal control signal that the FPGAFPGA chip produces is through data wire control LCD MODULE; The push button signalling that infrared sensor signal that sensor assembly produces and key circuit produce is all passed to fpga chip through data wire.
Said pallet upper antenna surface has the layer of transparent protective layer, and its material is glass or polymethyl methacrylate.
The useful effect that the present invention has is:
1, the present invention can make a wireless charging pallet antenna have near field charging and far field charge function concurrently.
2, the present invention is through the sensor charging device, and coil or antenna work that control is corresponding reduce the energy dissipation that causes because of unnecessary parts work.
3, the present invention makes energy towards the assigned direction radiation through the beam direction of control antenna battle array, improves charge efficiency.
Characteristics such as it is simple, powerful that 4, the present invention has use, and applicability is wide.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is the vertical view after the present invention removes the upper surface protective clear layer.
Fig. 4 is the front view of paster antenna among the present invention.
Fig. 5 is the cutaway view of paster antenna A-A face among Fig. 4.
Fig. 6 is the rearview of paster antenna among the present invention.
Fig. 7 is the structure chart of mutual inductor and infrared mutual-tube among the present invention.
Fig. 8 is the theory diagram of far field wireless charging module and control module among the present invention.
Fig. 9 is the theory diagram of wireless charging module near field among the present invention.
Figure 10 is the circuit theory diagrams of sensor assembly among the present invention.
Figure 11 is the circuit theory diagrams of button part among the present invention.
Figure 12 is the theory diagram of display module among the present invention
Among the figure: 1, protective clear layer, 2, shell, 3, main circuit board, 4, the DMF5001 LCD MODULE, 5, data wire; 6, button, 7, paster antenna, 8, mutual inductor, 9, control panel; 10, microstrip line, 11, the intermediate layer circuit board, 12, infrared mutual-tube, 13, through hole.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Like Fig. 1, shown in Figure 2, near field of the present invention and far field wireless universal charging pallet antenna comprise shell 2, and enclosure has main circuit board 3 and DMF5001 LCD MODULE 4, and main circuit board 3 is a circuit board more than three layers; As shown in Figure 3, main circuit board 3 fronts comprise 4 x, 4 matrix distribution 7 gusts of paster antennas, 3 x, 3 matrix distribution mutual inductor 8 and be arranged on the infrared mutual-tube 12 in the middle of each mutual inductor 8, each mutual inductor 8 is in the middle of four adjacent patch antennas 7; Main circuit board 3 back sides comprise near field wireless charging module, far field wireless charging module, sensor assembly and control module; All intermediate layer circuit boards 11 are the circuit trace layer; Control module is connected with DMF5001 LCD MODULE 4 through data wire 5, and control module also is connected through data wire with sensor assembly with near field wireless charging module, far field wireless charging module; Be connected with the far field wireless charging module at main circuit board 3 back sides through through hole 13 warps microstrip line 10 separately separately like Fig. 4, Fig. 5, each paster antenna 7 shown in Figure 6; The through hole 13 that the two ends of each mutual inductor 8 as shown in Figure 7 are passed through separately respectively is connected with the near field wireless charging module at main circuit board 3 back sides, and every pair of infrared mutual-tube 12 is connected with sensor assembly.
As shown in Figure 8; Said far field wireless charging module produces sine wave signal by a signal source; After the amplifier amplification; Be divided into ten six road sine wave signals through one minute four power splitter of two-stage again, each road sine wave signal is all successively through RF switch, controllable phase shifter, power amplifier and band pass filter, and last sine wave signal is passed to paster antenna 7 through microstrip line 10.
As shown in Figure 9; Said near field wireless charging module produces low frequency signal by control module; Through being divided into nine road signals behind the low pass filter, each road signal all passes through a gate-controlled switch, and then passes to mutual inductor 8 after by a N type FET signal being amplified.
Shown in figure 10, said sensor assembly mainly is made up of infrared mutual-tube 12, and the infrared sensor signal that the circuit that infrared mutual-tube 12 is formed produces is passed to control module through data wire.
Like Fig. 8, Figure 11 and shown in Figure 12, said control module is a fpga chip, and RF switch control signal and phase control signal that fpga chip produces are passed to RF switch and controllable phase shifter in the wireless charging module of far field respectively through data wire; The switch controlling signal that fpga chip produces is passed to the gate-controlled switch in the wireless charging module of near field through data wire, and the low frequency signal that fpga chip produces is as the input signal of near field wireless charging module; The liquid crystal control signal that fpga chip produces is through data wire control DMF5001 LCD MODULE 4; The push button signalling that infrared sensor signal that sensor assembly produces and button 6 produce is all passed to fpga chip through data wire.
Said pallet upper antenna surface has layer of transparent protective layer 1, and its material is glass or polymethyl methacrylate.
Operation principle of the present invention is following:
As shown in Figure 6; Under the wireless charging situation of far field; The sine wave signal that signal source produces then is divided into identical ten six road sine wave signals through one minute four power splitter of two-stage after at first amplifying through an amplifier, this ten six road sine wave signal respectively through one by after the RF switch of fpga chip control and the controllable phase shifter by fpga chip control; Amplify through power amplifier again; Through band-pass filter, pass to paster antenna 7 through microstrip line 10 more then, energy is launched by paster antenna 7; The present invention has 16 paster antennas 7 and forms aerial array; Can be through fpga chip control controllable phase shifter; Change the phase place of ten six road signals; Thereby change the radiation direction of the aerial array of 16 paster antennas compositions, make the radiation direction aligning need the equipment of charging, reduce energy loss.
Like Fig. 7 and shown in Figure 8; Under the wireless charging situation of near field; At first through being divided into nine road signals after the low pass filter filtering, each road signal is passed to mutual inductor 8 respectively through a gate-controlled switch by the control of FPGA switch controlling signal after being amplified by a N type FET to the low frequency signal that fpga chip produces again; When gate-controlled switch is closed, the mutual inductor work that this gate-controlled switch is corresponding; When gate-controlled switch separated, the mutual inductor that this gate-controlled switch is corresponding quit work.When an equipment to be charged is placed on the pallet antenna; The infrared reflection that this equipment to be charged sends the infrared emission tube in the infrared mutual-tube is in infrared receiver tube; Make the voltage at infrared receiver tube two ends become low level; Fpga chip detects voltage and changes, so the transmit button control signal makes voltage become the mutual inductor work of low level infrared mutual-tube position to gate-controlled switch; Otherwise; After if equipment to be charged leaves the pallet antenna, the voltage at infrared receiver tube two ends becomes high level, and fpga chip detects voltage and changes; So the transmit button control signal is to gate-controlled switch, the mutual inductor that makes voltage become the infrared mutual-tube position of high level quits work.
As shown in Figure 9, when button was pressed, the push button signalling that is input to fpga chip was a high level signal; When button was upspring, the push button signalling that is input to fpga chip was a low level signal, and fpga chip is through the input state of the change judges of detection level, thus the operating state of change pallet antenna.
Shown in figure 10, fpga chip output liquid crystal control signal can be shown to the operating state of pallet antenna on the LCD screen to the DMF5001 LCD MODULE.
Claims (6)
1. near field and far field wireless universal charging pallet antenna; It is characterized in that: near field and far field wireless universal charging pallet antenna comprise shell; Enclosure has main circuit board and LCD MODULE; Main circuit board is a circuit board more than three layers, the main circuit board front comprise matrix distribution the paster antenna battle array, be arranged alternately in the mutual inductor between the paster antenna battle array and be arranged on the infrared mutual-tube in the middle of each mutual inductor; The main circuit board back side comprises near field wireless charging module, far field wireless charging module, sensor assembly and control module; All intermediate layer circuit boards are the circuit trace layer; Control module is connected with LCD MODULE through data wire; Control module also is connected through data wire with sensor assembly with near field wireless charging module, far field wireless charging module; Each paster antenna is connected with the far field wireless charging module at the main circuit board back side through through hole separately; The through hole that the two ends of each mutual inductor are passed through separately respectively is connected with the near field wireless charging module at the main circuit board back side, and every pair of infrared mutual-tube is connected with sensor assembly.
2. a kind of near field according to claim 1 and far field wireless universal charging pallet antenna; It is characterized in that: said far field wireless charging module produces sine wave signal by a signal source; After the amplifier amplification; Be divided into ten six road sine wave signals through one minute four power splitter of two-stage again, each road sine wave signal is all successively through RF switch, controllable phase shifter, power amplifier and band pass filter, and last sine wave signal is passed to paster antenna through microstrip line.
3. a kind of near field according to claim 1 and far field wireless universal charging pallet antenna; It is characterized in that: said near field wireless charging module produces low frequency signal by control module; Through being divided into nine road signals behind the low pass filter; Each road signal all passes through a gate-controlled switch, and then passes to mutual inductor after by a N type FET signal being amplified.
4. a kind of near field according to claim 1 and far field wireless universal charging pallet antenna; It is characterized in that: said sensor assembly comprises infrared mutual-tube, and the infrared sensor signal that the circuit that infrared mutual-tube is formed produces is passed to control module through data wire.
5. a kind of near field according to claim 1 and far field wireless universal charging pallet antenna; It is characterized in that: said control module is a fpga chip, and RF switch control signal and phase control signal that fpga chip produces are passed to RF switch and controllable phase shifter in the wireless charging module of far field respectively through data wire; The switch controlling signal that fpga chip produces is passed to the gate-controlled switch in the wireless charging module of near field through data wire, and the low frequency signal that fpga chip produces is as the input signal of near field wireless charging module; The liquid crystal control signal that the FPGAFPGA chip produces is through data wire control LCD MODULE; The push button signalling that infrared sensor signal that sensor assembly produces and key circuit produce is all passed to fpga chip through data wire.
6. a kind of near field according to claim 1 and far field wireless universal charging pallet antenna, it is characterized in that: said pallet upper antenna surface has the layer of transparent protective layer, and its material is glass or polymethyl methacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210040685 CN102544756B (en) | 2012-02-22 | 2012-02-22 | Near-field and far-field universal wireless charging tray antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210040685 CN102544756B (en) | 2012-02-22 | 2012-02-22 | Near-field and far-field universal wireless charging tray antenna |
Publications (2)
| Publication Number | Publication Date |
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| CN102544756A true CN102544756A (en) | 2012-07-04 |
| CN102544756B CN102544756B (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210040685 Expired - Fee Related CN102544756B (en) | 2012-02-22 | 2012-02-22 | Near-field and far-field universal wireless charging tray antenna |
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Cited By (2)
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| CN107210523A (en) * | 2015-12-30 | 2017-09-26 | 深圳市大疆创新科技有限公司 | Circuit board and the electronic installation with the circuit board |
| US9882282B2 (en) | 2015-10-23 | 2018-01-30 | Apple Inc. | Wireless charging and communications systems with dual-frequency patch antennas |
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Patent Citations (10)
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| US20070090790A1 (en) * | 2002-06-10 | 2007-04-26 | City University Of Hong Kong | Inductive battery charger system with primary transformer windings formed in a multi-layer structure |
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| Publication number | Publication date |
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| CN102544756B (en) | 2013-10-30 |
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Granted publication date: 20131030 Termination date: 20160222 |