CN102544756B - 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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- CN102544756B CN102544756B CN 201210040685 CN201210040685A CN102544756B CN 102544756 B CN102544756 B CN 102544756B CN 201210040685 CN201210040685 CN 201210040685 CN 201210040685 A CN201210040685 A CN 201210040685A CN 102544756 B CN102544756 B CN 102544756B
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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 universal wireless charging tray antenna.
Background technology
Maturation along with the wireless charging technology, the raising of wireless charging efficient, add the wireless charging technology and exempted traditional charging modes to the dependence of socket, safety is with convenient more, so increasing product has adopted the wireless charging technology, this wireless charging technology of future can be widely used in the daily life, such as occasions such as office, airport, hotels, provides a great convenience to daily life.Yet existing wireless charging mainly take the near field charging modes that adopts the coil mutual coupling as main, adopts the charging device of near field wireless charging technology charging equipment need to be placed on energy emission source surface, so also has certain inconvenience.
Summary of the invention
In order to overcome the excessively near 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 tray antenna in a kind of near field and far field.
To achieve these goals, the technical solution used in the present invention is as follows:
Near field and far-field universal wireless charging tray antenna comprise shell, enclosure has main circuit board and LCD MODULE, main circuit board is circuit board more than three layers, the main circuit board front comprise matrix distribution patch antenna array, be arranged alternately in the mutual inductor between patch antenna array and be arranged on 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 by data wire, control module also is connected data wire with near field wireless charging module, far field wireless charging module with sensor assembly and is connected, each paster antenna is connected with the far field wireless charging module at the main circuit board back side by through hole separately, and 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.
Described 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 radio-frequency (RF) switch, controllable phase shifter, power amplifier and band pass filter, and last sine wave signal is passed to paster antenna by microstrip line.
Described 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 field effect transistor signal being amplified.
Described sensor assembly comprises infrared mutual-tube, and the infrared sensor signal that the circuit that infrared mutual-tube forms produces is passed to control module by data wire.
Described control module is a fpga chip, and the radio-frequency (RF) switch control signal that fpga chip produces and phase control signal are passed to respectively radio-frequency (RF) switch and controllable phase shifter in the wireless charging module of far field by data wire; The switch controlling signal that fpga chip produces is passed to gate-controlled switch in the wireless charging module of near field by 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 controlled LCD MODULE by data wire; The push button signalling that the infrared sensor signal that sensor assembly produces and key circuit produce is all passed to fpga chip by data wire.
Described tray antenna upper 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 tray antenna have near field charging and far field charge function concurrently.
2, the present invention detects charging device by transducer, 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 by the beam direction of control antenna battle array, improves charge efficiency.
The characteristics such as it is simple, powerful that 4, the present invention has use, and applicability is wide.
Description of drawings
Fig. 1 is 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 near field wireless charging module 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 key 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
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1 and Figure 2, near field of the present invention and far-field universal wireless charging tray antenna comprise shell 2, and enclosure has main circuit board 3 and DMF5001 LCD MODULE 4, and main circuit board 3 is 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 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 by data wire 5, and control module also is connected data wire with near field wireless charging module, far field wireless charging module with sensor assembly and is connected; Be connected with the far field wireless charging module at main circuit board 3 back sides through separately microstrip line 10 such as Fig. 4, Fig. 5, each paster antenna shown in Figure 67 through hole 13 by separately; As shown in Figure 7 the two ends of each mutual inductor 8 respectively the through hole 13 by separately be connected with the near field wireless charging module at main circuit board 3 back sides.
As shown in Figure 8, described 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 radio-frequency (RF) switch, controllable phase shifter, power amplifier and band pass filter, and last sine wave signal is passed to paster antenna 7 by microstrip line 10.
As shown in Figure 9, described 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 field effect transistor signal being amplified.
As shown in figure 10, described sensor assembly mainly is comprised of infrared mutual-tube 12, and the infrared sensor signal that the circuit that infrared mutual-tube 12 forms produces is passed to control module by data wire.
Such as Fig. 8, Figure 11 and shown in Figure 12, described control module is a fpga chip, and the radio-frequency (RF) switch control signal that fpga chip produces and phase control signal are passed to respectively radio-frequency (RF) switch and controllable phase shifter in the wireless charging module of far field by data wire; The switch controlling signal that fpga chip produces is passed to gate-controlled switch in the wireless charging module of near field by 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 by data wire control DMF5001 LCD MODULE 4; The push button signalling that the infrared sensor signal that sensor assembly produces and button 6 produce is all passed to fpga chip by data wire.
Described tray antenna upper surface has layer of transparent protective layer 1, and its material is glass or polymethyl methacrylate.
Operation principle of the present invention is as follows:
As shown in Figure 6, in the wireless charging situation of far field, after the sine wave signal of a signal source generation at first amplifies by an amplifier, then be divided into identical ten six road sine wave signals through one minute four power splitter of two-stage, this ten six road sine wave signal respectively by one by after the radio-frequency (RF) switch of fpga chip control and the controllable phase shifter by fpga chip control, amplify through power amplifier again, then through band pass filter filtering, pass to paster antenna 7 by microstrip line 10 again, by paster antenna 7 energy is launched; The present invention has 16 paster antennas 7 and forms aerial array, can control controllable phase shifter by fpga chip, 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 equipment that radiation direction is aimed at needs charging, reduce energy loss.
As shown in Figure 7 and Figure 8, in the wireless charging situation of near field, the low frequency signal that fpga chip produces is at first by being divided into nine road signals after the low pass filter filtering, each road signal is respectively by a gate-controlled switch by the control of FPGA switch controlling signal, pass to mutual inductor 8 after being amplified by a N-type field effect transistor 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 having a charging equipment to be placed on the tray antenna, the infrared reflection that this charging equipment 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 charging equipment leaves tray 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 high level signal; When button was upspring, the push button signalling that is input to fpga chip was low level signal, and fpga chip is judged user's input state by the change that detects level, thereby changed the operating state of tray antenna.
As shown in figure 10, fpga chip output liquid crystal control signal can be shown to the operating state of tray antenna on the LCD screen to the DMF5001 LCD MODULE.
Claims (6)
1. a near field and far-field universal wireless charging tray antenna, it is characterized in that: near field and far-field universal wireless charging tray antenna comprise shell, enclosure has main circuit board and LCD MODULE, main circuit board is circuit board more than three layers, the main circuit board front comprise matrix distribution patch antenna array, be arranged alternately in the mutual inductor between patch antenna array and be arranged on 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 by data wire, control module also is connected data wire with near field wireless charging module, far field wireless charging module with sensor assembly and is connected, each paster antenna is connected with the far field wireless charging module at the main circuit board back side by through hole separately, and 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.
2. a kind of near field according to claim 1 and far-field universal wireless charging tray antenna, it is characterized in that: described 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 radio-frequency (RF) switch, controllable phase shifter, power amplifier and band pass filter, and last sine wave signal is passed to paster antenna by microstrip line.
3. a kind of near field according to claim 1 and far-field universal wireless charging tray antenna, it is characterized in that: described 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 field effect transistor signal being amplified.
4. a kind of near field according to claim 1 and far-field universal wireless charging tray antenna, it is characterized in that: described sensor assembly comprises infrared mutual-tube, and the infrared sensor signal that the circuit that infrared mutual-tube forms produces is passed to control module by data wire.
5. a kind of near field according to claim 1 and far-field universal wireless charging tray antenna, it is characterized in that: described control module is a fpga chip, and the radio-frequency (RF) switch control signal that fpga chip produces and phase control signal are passed to respectively radio-frequency (RF) switch and controllable phase shifter in the wireless charging module of far field by data wire; The switch controlling signal that fpga chip produces is passed to gate-controlled switch in the wireless charging module of near field by 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 controlled LCD MODULE by data wire; The push button signalling that the infrared sensor signal that sensor assembly produces and key circuit produce is all passed to fpga chip by data wire.
6. a kind of near field according to claim 1 and far-field universal wireless charging tray antenna, it is characterized in that: described tray antenna upper 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 |
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| Publication Number | Publication Date |
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| CN102544756A CN102544756A (en) | 2012-07-04 |
| CN102544756B true CN102544756B (en) | 2013-10-30 |
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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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9882282B2 (en) | 2015-10-23 | 2018-01-30 | Apple Inc. | Wireless charging and communications systems with dual-frequency patch antennas |
| CN107210523B (en) * | 2015-12-30 | 2019-07-19 | 深圳市大疆创新科技有限公司 | Circuit board and electronic device with the circuit board |
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| CN101385202A (en) * | 2005-12-14 | 2009-03-11 | 堪萨斯州立大学 | Microstrip antenna for rfid device |
| CN101425148A (en) * | 2007-10-30 | 2009-05-06 | 美国博通公司 | Multi-mode rfid tag architecture |
| CN101536344A (en) * | 2006-08-01 | 2009-09-16 | 新加坡科技研究局 | Antenna for near field and far field radio frequency identification |
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| CN101971453A (en) * | 2007-05-08 | 2011-02-09 | 莫琼移动股份有限公司 | System and method for inductive charging of portable devices |
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| WO2011156519A2 (en) * | 2010-06-08 | 2011-12-15 | Pacific Integrated Energy, Inc. | Optical antennas with enhanced fields and electron emission |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1547222B1 (en) * | 2002-06-10 | 2018-10-03 | City University of Hong Kong | Planar inductive battery charger |
| US7796041B2 (en) * | 2008-01-18 | 2010-09-14 | Laird Technologies, Inc. | Planar distributed radio-frequency identification (RFID) antenna assemblies |
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2012
- 2012-02-22 CN CN 201210040685 patent/CN102544756B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101385202A (en) * | 2005-12-14 | 2009-03-11 | 堪萨斯州立大学 | Microstrip antenna for rfid device |
| CN101371216A (en) * | 2005-12-20 | 2009-02-18 | 埃森哲环球服务有限公司 | Wireless handheld device and method with GUI control |
| CN101536344A (en) * | 2006-08-01 | 2009-09-16 | 新加坡科技研究局 | Antenna for near field and far field radio frequency identification |
| CN101669265A (en) * | 2007-04-23 | 2010-03-10 | 伊斯曼柯达公司 | Charging display system |
| CN101971453A (en) * | 2007-05-08 | 2011-02-09 | 莫琼移动股份有限公司 | System and method for inductive charging of portable devices |
| CN101425148A (en) * | 2007-10-30 | 2009-05-06 | 美国博通公司 | Multi-mode rfid tag architecture |
| WO2011156519A2 (en) * | 2010-06-08 | 2011-12-15 | Pacific Integrated Energy, Inc. | Optical antennas with enhanced fields and electron emission |
| CN201917963U (en) * | 2010-12-21 | 2011-08-03 | 北京同方微电子有限公司 | Safety terminal device used for mobile payment |
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| CN102544756A (en) | 2012-07-04 |
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