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CN206237176U - A kind of knapsack built-in wireless Web charging system for being based on nine square emitter coils - Google Patents

A kind of knapsack built-in wireless Web charging system for being based on nine square emitter coils Download PDF

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Publication number
CN206237176U
CN206237176U CN201621371143.4U CN201621371143U CN206237176U CN 206237176 U CN206237176 U CN 206237176U CN 201621371143 U CN201621371143 U CN 201621371143U CN 206237176 U CN206237176 U CN 206237176U
Authority
CN
China
Prior art keywords
module
controller
transmitting coil
knapsack
detection circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201621371143.4U
Other languages
Chinese (zh)
Inventor
李国城
王军华
蔡昌松
胡妹林
方支剑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan University WHU
Original Assignee
Wuhan University WHU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan University WHU filed Critical Wuhan University WHU
Priority to CN201621371143.4U priority Critical patent/CN206237176U/en
Application granted granted Critical
Publication of CN206237176U publication Critical patent/CN206237176U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of knapsack built-in wireless Web charging system for being based on nine square emitter coils, including transmitter unit and receiving unit, transmitter unit further includes an AC DC modules, DC DC modules, high-frequency inversion module, first controller, first detection circuit, second detection circuit and trigger mechanism, trigger mechanism is in series by the first compensating electric capacity and transmitting coil array, transmitting coil array is constituted by being arranged in conplane nine square emitter coils from parallel connection of coils, nine square emitter coils are arranged in the row of three row three, and the sense of current of emission center coil and surrounding transmitting coil is opposite;Receiving unit further includes receiving mechanism, the 2nd AC DC modules, three testing circuit and second controller.The utility model is easy to be embedded in knapsack, portable and safe and efficient;In addition, also add charging area, the coefficient of coup of transmitting coil and receiving coil is improve, so as to improve overall transfer efficiency.

Description

A kind of knapsack built-in wireless Web charging system for being based on nine square emitter coils
Technical field
The utility model is related to magnet coupled resonant type wireless electric energy transmission technology, more particularly to a kind of based on nine square emitters The knapsack built-in wireless Web charging system of coil.
Background technology
Different according to transporting mechanism, wireless power transmission technology is mainly divided into four kinds of forms:Electromagnetic radiation formula, electric field coupling Box-like, magnet coupled resonant type and ultrasonic wave-coupled formula.The utility model is based on magnet coupled resonant type electric energy transmission technology.Magnetic coupling Resonant mode can realize that electric energy has larger transimission power and efficiency of transmission, and centre not by non magnetic in during remote transmission range The influence of barrier, is a kind of novel radio electric energy transmission technology having a extensive future.
The general principle of magnet coupled resonant type wireless electric energy transmission technology is:Direct current is changed by high-frequency inverter circuit It is high-frequency alternating current, two lateral coils of transmitting terminal and receiving terminal are issued in the cooperation of compensating electric capacity is conigenous resonance, makes wire loop Impedance value reaches minimum so that most of energy vibrates back and forth between electric capacity and inductance, while by coil to Emission energy receives energy from the external world.
Traditional contact charging modes are compared to, can be succeeded using magnet coupled resonant type wireless electric energy transmission technology Avoid the mechanical wear of junction that is caused by the plug repeatedly of charging equipment, cause loose contact.Simultaneously as non-connect Tactile characteristic, the potential danger that can be avoided being produced when charger and power supply are connected in conventional contact charging process electric spark and cause Danger.
Utility model content
The purpose of this utility model is to provide a kind of portable and is safely and efficiently based in the knapsack of nine square emitter coils Embedded wireless charging system.
The technical scheme that the utility model is used is:
A kind of knapsack built-in wireless Web charging system for being based on nine square emitter coils, including transmitter unit and reception list Unit:
Described transmitter unit further includes the first AC-DC module, DC-DC module, high-frequency inversion module, the first control Device, first detection circuit, second detection circuit and trigger mechanism, the first AC-DC module, DC-DC module, high-frequency inversion module, Trigger mechanism is sequentially connected;First detection circuit connects the input of high-frequency inversion module, low for detecting high-frequency inversion module Press the electric current of DC side;Second detection circuit connects the output end of high-frequency inversion module, for detecting high-frequency inversion module high frequency The electric current of AC;The input connection first of the first controller detects circuit, the second detection circuit, the output of the first controller End connection DC-DC module, the first controller connects high-frequency inversion module by driver;
Wherein, trigger mechanism is in series by the first compensating electric capacity and transmitting coil array, and transmitting coil array is by arranging Constituted in conplane nine square emitter coils from parallel connection of coils, nine square emitter coils are arranged in the row of three row three, and center The sense of current of transmitting coil and surrounding transmitting coil is opposite;
Described receiving unit further includes receiving mechanism, the second AC-DC module, three testing circuit and the second control Device, receiving mechanism, the second AC-DC module, three testing circuit, second controller are sequentially connected, wherein, receiving mechanism is by second Compensating electric capacity and receiving coil are in series.
Further, the size of nine square emitter coils is identical.
Further, the output end of second controller is also connected with signal of communication modulation circuit.
Further, the second detection circuit further includes current transformer, real effective chip and converter, electric current Transformer, real effective chip, converter are sequentially connected.
Compared to the prior art, the utility model has the following advantages that and beneficial effect:
(1)It is easy to be embedded in knapsack, it is portable and safe and efficient, solve mobile phone, panel computer, LED in living small The problem of the charging inconvenience of the low power electric appliances such as lamp, small fan.
(2)Charging area is increased, the coefficient of coup of transmitting coil and receiving coil is improve, so as to improve overall transfer Efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model transmitter unit;
Fig. 2 is the structural representation of the utility model receiving unit;
Fig. 3 is the structural representation of the utility model transmitting coil array;
Fig. 4 is the specific schematic diagram of the detection circuit of the utility model second and its annexation.
The AC-DC modules of 1- first, 2- DC-DC modules, 3- high-frequency inversion modules, the controllers of 4- first, 5- first detects electricity Road, the detection circuits of 6- second, 7- trigger mechanisms, 8- receiving mechanisms, the AC-DC modules of 9- second, 10- three testing circuits, 11- the Two controllers, 12- signal of communication modulation circuits, 13- charging equipments.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Referring to Fig. 1, in transmitter unit, the first AC-DC module 1 is used for commercial power rectification being direct current that DC-DC module 2 is used Come step voltage before stablizing, and by prime voltage conversion for needed for post-module voltage;High-frequency inversion module 3 is in the first controller 4 Under the driving of the pwm signal of output, the direct current that DC-DC module 2 is exported is converted into high-frequency alternating current, and by trigger mechanism 7 high-frequency alternating currents are launched.The first detection detection circuit 6 of circuit 5 and second detects the low pressure of high-frequency inversion module 3 respectively DC side and the electric current of high-frequency ac side, and will detect that electric current is sent to the first controller 4 after being converted to voltage signal.First control Device processed 4 controls DC-DC module 2 and high-frequency inversion module 3 according to signal is received, to ensure that working frequency is receiving new coil and hair Near the resonant frequency of ray circle.For convenience of drawing, two the first controllers 4 are signified identical in Fig. 1.
Referring to Fig. 2, in receiving unit, the energy of the transmitting of 8 receiver/transmitter structure of receiving mechanism 7, and exported to rear class.Second High-frequency alternating current rectification is turned into direct current by AC-DC module 9, and pair charging equipment 13 being connected with the output end of receiving mechanism 8 enters Row charges.The instantaneous operating conditions of the detection charging equipment 13 of three testing circuit 10 simultaneously send second controller 11 to, described Charging equipment 13 instantaneous operating conditions including charging equipment battery real-time configuration information and communication protocol.Second control Device processed 11 can also connection communication signal modulation circuit 12, its receive charging equipment 13 instantaneous operating conditions can by communication Signal modulation circuit 12 is sent to control centre.
Referring to Fig. 3, in transmitter unit, the transmitting coil array that trigger mechanism 7 is arranged using nine coils, emission center coil Surrounding is uniformly distributed 8 transmitting coils, 9 transmitting coil shape and size all sames.9 transmitting coils are arranged in same flat Face, is easy to be embedded in knapsack bottom, can also increase the sense of current phase of charging area, emission center coil and surrounding transmitting coil Instead, so can not only ensure the uniformity and intensity of transmitting coil surrounding magnetic field, but also chargeable area can be increased.In Fig. 3, Camber line with arrow represents the sense of current.
Referring to Fig. 4, a kind of specific second detection circuit is by the current transformer, real effective chip, the AD that are sequentially connected Converter is constituted.Wherein, current transformer is used for detecting trigger mechanism for detecting the electricity of high-frequency inversion module high-frequency ac side Stream, i.e. electric current in trigger mechanism, and output voltage signal obtains virtual value by real effective chip.A/D converter is effectively Value is converted to digital quantity and is sent to the first controller.First controller control control DC-DC module and high-frequency inversion module, to protect The virtual value for demonstrate,proving transmitting coil electric current is always maximum, you can allow wireless charging system to be operated near resonant frequency.

Claims (4)

1. a kind of knapsack built-in wireless Web charging system for being based on nine square emitter coils, including transmitter unit and receiving unit, It is characterized in that,
Described transmitter unit further include the first AC-DC module, DC-DC module, high-frequency inversion module, the first controller, First detection circuit, the second detection circuit and trigger mechanism, the first AC-DC module, DC-DC module, high-frequency inversion module, transmitting Mechanism is sequentially connected;First detection circuit connects the input of high-frequency inversion module, for detecting the low pressure of high-frequency inversion module The electric current of DC side;Second detection circuit connects the output end of high-frequency inversion module, for detecting the high frequency of high-frequency inversion module The electric current of AC;The input connection first of the first controller detects circuit, the second detection circuit, the output of the first controller End connection DC-DC module, the first controller connects high-frequency inversion module by driver;
Wherein, trigger mechanism is in series by the first compensating electric capacity circuit and transmitting coil array, and transmitting coil array is by arranging Constituted in conplane nine square emitter coils from parallel connection of coils, nine square emitter coils are arranged in the row of three row three, and center The sense of current of transmitting coil and surrounding transmitting coil is opposite;
Described receiving unit further includes receiving mechanism, the second AC-DC module, three testing circuit and second controller, Receiving mechanism, the second AC-DC module, three testing circuit, second controller are sequentially connected, wherein, receiving mechanism is mended by second Repay condenser network and receiving coil is in series.
2. the knapsack built-in wireless Web charging system of nine square emitter coils is based on as claimed in claim 1, it is characterized in that:
In described transmitting coil array, the size of nine square emitter coils is identical.
3. the knapsack built-in wireless Web charging system of nine square emitter coils is based on as claimed in claim 1, it is characterized in that:
The output end of described second controller is also connected with signal of communication modulation circuit.
4. the knapsack built-in wireless Web charging system of nine square emitter coils is based on as claimed in claim 1, it is characterized in that:
Described second detection circuit further includes current transformer, real effective chip and converter, current transformer, Real effective chip, converter are sequentially connected.
CN201621371143.4U 2016-12-14 2016-12-14 A kind of knapsack built-in wireless Web charging system for being based on nine square emitter coils Expired - Fee Related CN206237176U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621371143.4U CN206237176U (en) 2016-12-14 2016-12-14 A kind of knapsack built-in wireless Web charging system for being based on nine square emitter coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621371143.4U CN206237176U (en) 2016-12-14 2016-12-14 A kind of knapsack built-in wireless Web charging system for being based on nine square emitter coils

Publications (1)

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CN206237176U true CN206237176U (en) 2017-06-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109515219A (en) * 2018-12-03 2019-03-26 安徽蓝鹏微电科技股份有限公司 Electric car wireless charging and coil positioning composite array coil design and control
CN113619412A (en) * 2021-10-14 2021-11-09 中国科学院空天信息创新研究院 Energy transmitting device for unmanned aerial vehicle wireless charging platform
WO2023168963A1 (en) * 2022-03-08 2023-09-14 苏州吾线科技开发有限公司 Wireless charging system based on magnetic coupling resonance mode

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109515219A (en) * 2018-12-03 2019-03-26 安徽蓝鹏微电科技股份有限公司 Electric car wireless charging and coil positioning composite array coil design and control
CN113619412A (en) * 2021-10-14 2021-11-09 中国科学院空天信息创新研究院 Energy transmitting device for unmanned aerial vehicle wireless charging platform
WO2023168963A1 (en) * 2022-03-08 2023-09-14 苏州吾线科技开发有限公司 Wireless charging system based on magnetic coupling resonance mode

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170609

Termination date: 20191214