CN102315691B - Wireless charging system and wireless charging method - Google Patents

Wireless charging system and wireless charging method Download PDF

Info

Publication number
CN102315691B
CN102315691B CN201010225012.6A CN201010225012A CN102315691B CN 102315691 B CN102315691 B CN 102315691B CN 201010225012 A CN201010225012 A CN 201010225012A CN 102315691 B CN102315691 B CN 102315691B
Authority
CN
China
Prior art keywords
module
wireless
control module
wireless charging
power
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.)
Active
Application number
CN201010225012.6A
Other languages
Chinese (zh)
Other versions
CN102315691A (en
Inventor
钟红风
张士松
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.)
Positec Power Tools Suzhou Co Ltd
Original Assignee
Positec Power Tools Suzhou Co Ltd
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 Positec Power Tools Suzhou Co Ltd filed Critical Positec Power Tools Suzhou Co Ltd
Priority to CN201010225012.6A priority Critical patent/CN102315691B/en
Publication of CN102315691A publication Critical patent/CN102315691A/en
Application granted granted Critical
Publication of CN102315691B publication Critical patent/CN102315691B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The present invention relates to a kind of wireless charging system and wireless charging method.This wireless charging system comprises charging device and electric device, wherein charging device comprises AC-DC module, oscillation module, stimulating module, wireless transmission coil, the external ac power source of powering to charging device is converted into galvanic current source by AC-DC module, galvanic current source is converted into high-frequency ac power by oscillation module, stimulating module amplifies high-frequency ac power, the high-frequency ac power that wireless transmission coil transmissions amplifies; Electric device comprises storage capacitance, wireless receive coil, rectification module, secondary regulation and control module, storage capacitance is powered to electric device, wireless receive coil receives the high-frequency ac power of the amplification that described wireless transmitter module is launched, the power rectifier that rectification module receives wireless receive coil, secondary regulation and control module adjustment rectification module exports, and charges to storage capacitance.This wireless charging system and wireless charging method provide a kind of wireless charging mode of contactless, safe and reliable, simple operation.

Description

Wireless charging system and wireless charging method
Technical field
The present invention relates to a kind of wireless charging system and wireless charging method.
Background technology
In recent years, along with the development of capacitor technology, there is the capacitor of the large energy that can store electrostatic charge form, as electrochemical capacitance, super capacitor or pseudo-electric capacity and the other forms of capacitor that can store the large energy of electrostatic charge.Capacitor is the rechargeable device substituted of alternative electrochemical cell, and compared to the battery of common electrochemical type, capacitor can absorb energy fast, and discharges the energy stored fast.
In Chinese patent application 200780018215.4 disclosed in 3 days June in 2009, disclose the screwdriver that a kind of charger based on capacitor and super capacitor are powered.In use, when described screwdriver is mounted to after on described charger, the super capacitor in screwdriver and the electric capacity in charger are electrically connected, and any electric charge on charger electric capacity is distributed in rapidly between two electric capacity, fast to the super capacitor charging in screwdriver, charging current is very large.When adopting high electric current in circuit, need there is good electrical contact between all parts of charging circuit.If the contact between any two parts is undesirable, so high electric current may cause forming electric arc between these components, produces high temperature, may damage these parts.For the charging that achieves a butt joint, charging device and electric device all comprise contact terminal, and by the connection of contact terminal, realize the charging of charging device to electric device.In Long-Time Service and plug, easily cause the contact between contact terminal undesirable, thus cause when high current charges, between contact terminal, produce high temperature even electric arc, cause the further damage to contact terminal, finally cause the inefficacy of whole device.And, the contact terminal that is arranged at charging device and electric device is generally and exposes, the pollution of the contact terminal that may cause due to foreign matter and cause loose contact, or the carelessness of user and being short-circuited, this can cause the electric discharge completely of the capacitor in portable power tool.For solving the problem, CN200780018215.4 provides a kind of electric contact piece, ensures the good contact between screwdriver and charger.But along with the lengthening of service time, friction between the electric contact terminal of screwdriver, electric contact piece, charger three increases, inevitably wear and tear, and then cause contact unreliable, cause the danger such as short circuit, the contact with each other charging modes of formula of this kind uses very inconvenient simultaneously, and screwdriver must be installed on charger by user exactly, charging could be realized, be therefore badly in need of providing a kind of without the need to contact, there is not wearing and tearing, the charging system of simple operation and charging method.
Summary of the invention
The object of the invention is to provide a kind of wireless charging system and wireless charging method, and this wireless charging system and wireless charging method achieve a kind of wireless charging mode of contactless, safe and reliable, simple operation.
For achieving the above object, technical scheme provided by the invention is: a kind of wireless charging system, comprise charging device and electric device, wherein charging device comprises the AC-DC module in order to the external ac power source of powering to charging device to be converted into galvanic current source, electric device comprises the storage capacitance of powering for electric device, described charging device also comprises: oscillation module, in order to described galvanic current source is converted into high-frequency ac power; Stimulating module, in order to amplify described high-frequency ac power; Wireless transmission coil, in order to launch the high-frequency ac power of described amplification; Described electric device also comprises: wireless receive coil, in order to receive the high-frequency ac power of the amplification that described wireless transmitter module is launched; Rectification module, in order to the power rectifier received described wireless receive coil; Secondary regulation and control module, exports in order to adjust described rectification module, charges to described storage capacitance.
Preferably, described charging device also comprises elementary regulation and control module, and described electric device also comprises secondary control module, and described secondary control module is according to the charged state of storage capacitance, send corresponding control signal to elementary regulation and control module, adjust the work of described oscillation module.
Preferably, when described storage capacitance voltage reaches predeterminated voltage, described secondary control module sends control signal, controls oscillation module and quits work.Preferably, the control signal that described secondary control module sends is infrared signal.
Preferably, described electric device also comprises the infrared-emitting diode launching infrared signal, and described charging device also comprises the infrared receiving diode receiving infrared signal.Preferably, described electric device also comprises the first recognition component, and described charging device also comprises the second recognition component, and after the first recognition component and the second recognition component identify mutually, elementary regulation and control module controls oscillation module is started working.Preferably, described first recognition component is magnet steel, and described second recognition component is tongue tube.
Preferably, described electric device is electric tool.
The present invention provides a kind of wireless charging method simultaneously, and the method comprises the steps: external ac power source to be converted into DC power supply; Described DC power supply is converted into high-frequency ac power; Described high-frequency ac power is amplified; The high-frequency ac power of amplification is launched; Receive the high-frequency ac power emitted; The high-frequency ac power of reception is converted into DC power supply; Described DC power supply is utilized to charge to storage capacitance.
The present invention provides another kind of wireless charging system simultaneously, and this wireless charging system comprises charging device and electric device, and electric device comprises for it runs the storage capacitance providing energy, and this charging device is wirelessly the charging of described storage capacitance.
Wireless charging system provided by the invention and wireless charging method, the wearing and tearing avoiding reliable contacts necessary between charging device and electric tool in wired charging modes and cause thus, improve the fail safe of charging device, reliability.Simultaneously due between charging device and electric tool without the need to reliable contacts, therefore user can place electric tool arbitrarily in a big way, but still can realize reliable charging, therefore improves the convenience of user's charging.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the invention will be further described.
Fig. 1 is the schematic diagram of wireless charging system one better embodiment of the present invention;
Fig. 2 is the circuit block diagram of wireless charging system shown in Fig. 1 of the present invention;
Fig. 3 is the workflow block diagram of wireless charging system shown in Fig. 1 of the present invention.
Related elements reference numeral in diagram is as follows:
10 electric device 50 charging devices
11 tool housing 51 infrared receiving diodes
12 pedestal 52 radiating circuit control units
13 storage capacitance 53 second recognition components
14 banded light belt 54 wireless transmission coils
15 infrared-emitting diode 55 square casings
16 first recognition component 56 accepting grooves
17 wireless receive coil 57 stimulating modules
18 receiving circuit control units 58 resonate detection module
19 rectification module 59 feedback modules
The elementary regulation and control module of 20 sampling module 60
21 level control module 61 primary control modules
22 driver module 62 AC-DC module
23 level regulation and control module 63 oscillation modules
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Fig. 1 shows the structural representation of wireless charging system one better embodiment of the present invention.This wireless charging system comprises charging device 50 and electric device 10, and this electric device 10 can be the various electric tools such as screwdriver, electric drill, electric hammer, grass-mowing machine, hay mover.Electric device 10 comprises tool housing 11, be contained in the motor in tool housing 11, be positioned at the pedestal 12 below tool housing 11, be contained in the storage capacitance 13 in pedestal 12, infrared-emitting diode 15, first recognition component 16, receiving circuit control unit 18, wireless receive coil 17, and be positioned at the banded light belt 14 of pedestal 12 periphery.First recognition component 16 can be magnet steel.Storage capacitance 13, infrared-emitting diode 15, wireless receive coil 17 are all electrically connected with receiving circuit control unit 18, banded light belt 14 is along pedestal 12 periphery parcel infrared-emitting diode 15, when infrared-emitting diode 15 is luminous, whole banded light belt 14 all can be luminous, and then can expand infrared-emitting diode 15 light emitting region.
Described charging device 50 is plate shaped, comprise square casing 55, at the accepting groove 56 of the collecting tool base 12 that square casing 55 surface is formed, to be contained in square casing 55 and the wireless transmission coil 54 be positioned at immediately below accepting groove 56, be contained in the second recognition component 53 corresponding with the first recognition component 16 position in square casing 55, to be contained in square casing 55 and to be positioned at the infrared receiving diode 51 with infrared-emitting diode 15 position correspondence position, and connect wireless transmission coil 54, infrared receiving diode 51, the radiating circuit control unit 52 of the second recognition component 53.Second recognition component 53 can be tongue tube.When electric device 10 is positioned in the accepting groove 56 of charging device 50, and the first recognition component 16 and the second recognition component 53 are in when position, under the effect of the first recognition component 16, the second recognition component 53 is in closure state, and radiating circuit control unit 52 is once detect that the second recognition component 53 is in closure state and can starts charging.Composition graphs 2 is described in detail with Fig. 3 by detailed charging control process.
Fig. 2 is the schematic block circuit diagram of wireless charging system of the present invention, and indicate 50 in figure and represent charging device, those skilled in the art are it is easily understood that the electronic devices and components related in charging device 50 are arranged on radiating circuit control unit 52.As shown in the figure, described radiating circuit control unit 52 comprises AC-DC module 62, oscillation module 63, stimulating module 57, resonance detection module 58, feedback module 59, elementary regulation and control module 60, primary control module 61.Wireless transmission coil 54, infrared receiving diode 51 and the second recognition component 53 are all electrically connected with radiating circuit control unit 52.After charging device 50 is connected with AC power supplies, it is each module for power supply in circuit that AC power supplies is converted into DC power supply through AC-DC module 62.It will be appreciated by persons skilled in the art that AC power can be transferred to the DC power supply for needing arbitrarily by AC-DC module 62 as required, as the DC power supply arbitrarily such as 12V, 24V, 28V, 36V, is 12V DC power supply in the present embodiment.The 12V DC power supply exported through AC-DC module 62 rectification is mainly divided into two-way, and a road is supplied to oscillation module 63, through oscillation module 63,12V DC power supply is converted into high frequency square wave.Well known to those skilled in the art is adopt the active crystal oscillator of 2MHz as oscillation module 63, and the square wave that oscillation module 63 exports, through second-order low-pass filter filtering high order harmonic component, obtains stable sinewave output.The stable sine wave that oscillation module 63 exports amplifies through stimulating module 57, and the sine wave after amplification is launched through wireless transmission coil 54.Wireless transmission coil 54 is while launching the sine wave through amplifying, the wireless resonance signal that wireless receive coil 17 is launched can be sensed, the wireless resonance signal detected is passed to feedback module 59 by resonance detection module 58, the signal feedback that resonance detection module 58 detects by feedback module 59 is to elementary regulation and control module 60, and elementary regulation and control module 60 is according to the parameter of oscillation of feedback signal adjustment oscillation module 63.Another road of 12V DC power supply is supplied to primary control module 61.Primary control module 61 is for detecting the operating state of infrared receiving diode 51 and the second recognition component 53, and carry out process judgement according to testing result, finally judged result is sent to elementary regulation and control module 60, controlled by elementary regulation and control module 60 pairs of oscillation modules 63.In addition the charging interval control unit detecting the charging interval is also comprised in primary control module 61, if detect, the charging interval is greater than a certain preset value, sends charging stop signal, and give elementary regulation and control module 60 by signal transmission, control oscillation module 63 by elementary regulation and control module 60 to stop oscillation, thus stop the energy of wireless transmission coil 54 to launch, thus stop the charging process to super capacitor.
Indicate 10 in Fig. 2 and represent electric device, those skilled in the art are it is easily understood that the electronic devices and components related in electric device 10 are arranged on receiving circuit control unit 18.As shown in the figure, receiving circuit control unit 18 comprises rectification module 19, sampling module 20, secondary control module 21, secondary regulation and control module 23, driver module 22.Wireless receive coil 17, storage capacitance 13, infrared-emitting diode 15 and the first recognition component 16 are electrically connected with receiving circuit control unit 18.The high-frequency stabilization sine wave that wireless receive coil 17 is launched for receiving wireless transmission coil 54, and the high-frequency stabilization sine wave received is passed to rectification module 19.Rectification module 19 carries out rectification for the high_frequency sine wave transmitted wireless receive coil 17, and high-frequency stabilization sine wave is converted into direct current.Sampling module 20 and secondary regulation and control module 23 are all electrically connected with rectification module 19, and sampling module 20 and secondary regulation and control module 23 are all electrically connected with secondary control module 21 simultaneously, but rectification module 19 and secondary control module 21 do not have direct electrical connection.Wherein sampling module 20 is for sampling the output state of current rectification module 19, and the output state be sampled to is fed back to secondary control module 21, secondary control module 21 gathers the charged state parameter of current storage capacitance 13 simultaneously, as charging current, charging voltage etc., secondary control module 21 generates according to the electrical property state of current storage capacitance 13 and rectification module 19 operating state that corresponding control signal controls driver module 22 and secondary regulation and control module 23.Another road of rectification module 19 exports, export secondary regulation and control module 23 to, secondary regulation and control module 23, according to the control signal of secondary control module 21, adjusts the output of rectification module 19, it is made to export direct current into adapting to current super capacitance state, for storage capacitance 13 is charged.When electric device 10 is positioned in the accepting groove 56 of charging device 50, and when under the effect of the first recognition component 16, the second recognition component 53 is in closure state, connect ac-input power supply, AC power supplies is converted into DC power supply through AC-DC module 62, through oscillation module 63,12V DC power supply is converted into high frequency square wave, the stable sine wave that oscillation module 63 exports amplifies through stimulating module 57, and the sine wave after amplification is launched through wireless transmission coil 54.Wireless receive coil 17 receives the high-frequency stabilization sine wave that wireless transmission coil 54 is launched, and the high-frequency stabilization sine wave received is passed to rectification module 19, the high_frequency sine wave that rectification module 19 pairs of wireless receive coil 17 transmit carries out rectification, high-frequency stabilization sine wave is converted into direct current, for storage capacitance 13 is charged.Preferably, wireless transmission coil 54 and wireless receive coil 17, just to placement, also can realize charging if wireless transmission coil 54 and wireless receive coil 17 depart from certain position mutually, only can affect the charge efficiency of charging device 50.Along with the carrying out of charging process, the electricity that storage capacitance 13 stores raises gradually, when secondary control module 21 detects that storage capacitance 13 is full of, then close secondary regulation and control module 23, driver module 22 controls infrared-emitting diode 15 luminescence simultaneously, after infrared receiving diode 51 receives the Infrared that infrared-emitting diode 15 sends, the Infrared received is fed back to primary control module 61, namely primary control module 61 exports and stops charging signals controlling oscillation module 63 stop oscillation to elementary regulation and control module 60, and namely charging process stops.Or in charging process, infrared-emitting diode 15 does not launch Infrared, but the timer being positioned at primary control module 61 detects that the charging interval is greater than a certain preset value, charging interval preset value in the present embodiment is 10 seconds, then primary control module 61 can send equally and stop charging signals to elementary regulation and control module 60 to control oscillation module 63 and stop oscillation, and namely charging process stops.Preferably, infrared receiving diode 51 is in the position just right with infrared-emitting diode 15, or the position just right with banded light belt 14, thus infrared receiving diode 51 can receive the Infrared that infrared-emitting diode 15 is launched more exactly.
Figure 3 shows that the workflow diagram of wireless charging system of the present invention, describe the overall process of this wireless charging system work below in conjunction with Fig. 3 in detail.
First according to the position shown in Fig. 1, place charging device 50 and electric device 10, under this position, wireless transmission coil 54 is corresponding with wireless receive coil 17 to be close to, infrared-emitting diode 15 is corresponding with infrared receiver reception diode 51 to be close to, and the first recognition component 16 is corresponding with the second recognition component 53 to be close to.
After as above position places charging device 50 and electric device 10, powered on by charging device 50, AC power supplies inputs, and AC-DC module 62 carries out power conversion, AC power supplies is converted to direct current 12V power supply, and primary control module 61 starts simultaneously.Whether primary control module 61 detects the second recognition component 53 and closes, if the second recognition component 53 disconnects, then proceed to 104 step cycle to detect the second recognition component 53 and whether close, until detect that the second recognition component 53 closes, then control oscillation module 63 by elementary regulation and control module 60 to start, after oscillation module 63 starts, stimulating module 57 starts, and proceeds to next step 108 wireless transmission coil 54 subsequently and sends radio energy.After the wireless receive coil 17 being positioned at electric device 10 receives radio energy, proceed to step rectification module 19 and interchange radio energy is made into direct current, wireless resonance signal is sent after wireless receive coil 17 receives wireless energy simultaneously, after resonance detection module 58 detects wireless resonance signal, proceed to step 112 and feed back detection signal, after resonance signal feeds back to elementary regulation and control module 60, proceed to the elementary regulation and control module 60 of step 109 and control transmitting power, and then control the radio energy of wireless transmission coil 54 transmitting.Wireless receive coil 17 is after the wireless energy receiving wireless transmission coil 54 transmitting, workflow is divided into two steps, one step proceeds to step 203 time level control module 21 and samples, and judge that rectification module 19 has no current to produce, if no current produces, return step 203 and continue sampling, until there is electric current to produce, then proceed to step 205 and open secondary regulation and control module 23, secondary regulation and control module 23 control rectification module 19 export constant current be super capacitor charging, in the present embodiment, constant charging current is 5 amperes (A).Detect storage capacitance 13 voltage in step 207 and whether be more than or equal to predeterminated voltage, the predeterminated voltage that the present embodiment is selected is 5.4 volts (V), if storage capacitance 13 voltage does not reach 5.4 volts (V), continue charging, until storage capacitance 13 voltage is more than or equal to 5.4 volts (V), then proceed to step 208 and close secondary regulation and control module 23, enter step 209 subsequently and open driver module 22, drive infrared-emitting diode 15 luminous, namely send storage capacitance 13 and be full of signal.In step 115, if primary control module 61 detects infrared signal, proceed to step 114 and control elementary regulation and control module 60 and close radio transmission, wireless transmission coil 54 stops radio energy launching.In step 115, if primary control module 61 does not detect infrared signal, then wireless transmission coil 54 continues to launch radio energy, and charging process continues.
Those skilled in the art it is readily understood that, according to design of the present invention, electric device 10 can be also any electric devices such as mobile phone, MP3, panel computer, notebook computer, and its wireless charging principle is conceived substantially identical with method with the present invention.

Claims (8)

1. a wireless charging system, comprise charging device and electric device, wherein charging device comprises the AC-DC module in order to the external ac power source of powering to charging device to be converted into galvanic current source, and electric device comprises the storage capacitance of powering for electric device, it is characterized in that:
Described charging device also comprises:
Oscillation module, in order to be converted into high-frequency ac power by described galvanic current source;
Stimulating module, in order to amplify described high-frequency ac power;
Wireless transmission coil, in order to launch the high-frequency ac power of described amplification;
Described electric device also comprises:
Wireless receive coil, hands in order to the high frequency receiving the amplification that described wireless transmission coil transmissions goes out
Stream power supply;
Rectification module, in order to the power rectifier received described wireless receive coil;
Secondary regulation and control module, exports in order to adjust described rectification module, charges to described storage capacitance.
2. wireless charging system according to claim 1, it is characterized in that: described charging device also comprises elementary regulation and control module, described electric device also comprises secondary control module, described secondary control module is according to the charged state of storage capacitance, send corresponding control signal to elementary regulation and control module, adjust the work of described oscillation module.
3. wireless charging system according to claim 2, is characterized in that: when described storage capacitance voltage reaches predeterminated voltage, and described secondary control module sends control signal, controls oscillation module and quits work.
4. wireless charging system according to claim 3, is characterized in that: the control signal that described secondary control module sends is infrared signal.
5. wireless charging system according to claim 4, is characterized in that: described electric device also comprises the infrared-emitting diode launching infrared signal, and described charging device also comprises the infrared receiving diode receiving infrared signal.
6. wireless charging system according to claim 1, it is characterized in that: described electric device also comprises the first recognition component, described charging device also comprises the second recognition component, and after the first recognition component and the second recognition component identify mutually, elementary regulation and control module controls oscillation module is started working.
7. wireless charging system according to claim 6, is characterized in that: described first recognition component is magnet steel, and described second recognition component is tongue tube.
8. wireless charging system according to claim 1, is characterized in that: described electric device is electric tool.
CN201010225012.6A 2010-07-01 2010-07-01 Wireless charging system and wireless charging method Active CN102315691B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010225012.6A CN102315691B (en) 2010-07-01 2010-07-01 Wireless charging system and wireless charging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010225012.6A CN102315691B (en) 2010-07-01 2010-07-01 Wireless charging system and wireless charging method

Publications (2)

Publication Number Publication Date
CN102315691A CN102315691A (en) 2012-01-11
CN102315691B true CN102315691B (en) 2015-10-21

Family

ID=45428584

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201010225012.6A Active CN102315691B (en) 2010-07-01 2010-07-01 Wireless charging system and wireless charging method

Country Status (1)

Country Link
CN (1) CN102315691B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611175A (en) * 2012-03-15 2012-07-25 李素平 Solar wireless charging circuit
CN103457362B (en) * 2012-06-04 2016-02-03 比亚迪股份有限公司 The dispensing device of wireless charging, wireless charging system and wireless charging control method
CN102709997A (en) * 2012-06-11 2012-10-03 上海第二工业大学 Method for wirelessly transmitting electric energy to charge a plurality of or many kinds of loads
DE102013226231A1 (en) * 2012-12-21 2014-06-26 Robert Bosch Gmbh Induction charger
CN103269131B (en) * 2013-05-23 2015-04-01 东南大学 Electric car wireless charging stall system
CN104868603B (en) * 2014-02-24 2018-04-27 联想(北京)有限公司 Electronic equipment, charging equipment and the method for it
US11161422B2 (en) 2014-08-07 2021-11-02 Positec Power Tools (Suzhou) Co., Ltd. Wireless charging station, automatic mower and automatic mowing system
CN104505898A (en) * 2014-12-31 2015-04-08 南安市高捷电子科技有限公司 Wireless charger for mobile phone
CN105249924A (en) * 2015-08-31 2016-01-20 重庆邮电大学 Remote monitoring system for medicine taking of patient
CN106560904B (en) * 2015-09-29 2019-04-19 比亚迪股份有限公司 Induction coil structure and wireless charging device
CN105406552B (en) * 2015-12-25 2018-10-12 昆山维信诺科技有限公司 Wireless charging device and its charging equipment and power receiving equipment
CN109211004A (en) * 2017-07-07 2019-01-15 杨俊峰 Baton set with wireless charging function
CN107995712A (en) * 2017-12-08 2018-05-04 北京弗圣威尔科技有限公司 Wireless power heating unit and heating means and placement thing and its preparation method
CN110861529B (en) * 2019-11-29 2021-10-22 安徽江淮汽车集团股份有限公司 Charging control method and device and electric automobile
CN112025632A (en) * 2020-09-25 2020-12-04 格力博(江苏)股份有限公司 Electric tool and tool system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1536735A (en) * 2003-04-09 2004-10-13 ���ǵ�����ʽ���� Robot charging system
CN101567570A (en) * 2009-06-01 2009-10-28 南京航空航天大学 Non-contact induction type charging system
CN201504123U (en) * 2009-09-18 2010-06-09 陕西伏特龙电力有限公司 Vehicle-mounted non-contact power supply
CN201510739U (en) * 2009-07-16 2010-06-23 深圳市三子科技有限公司 Gaming device combination capable of being wirelessly charged
CN202068222U (en) * 2010-07-01 2011-12-07 苏州宝时得电动工具有限公司 Wireless charging system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4547387B2 (en) * 2003-12-17 2010-09-22 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Emergency light device and emergency light system
CN101126486A (en) * 2007-09-12 2008-02-20 王亚军 Radio induction charging type multifunctional semiconductor illuminator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1536735A (en) * 2003-04-09 2004-10-13 ���ǵ�����ʽ���� Robot charging system
CN101567570A (en) * 2009-06-01 2009-10-28 南京航空航天大学 Non-contact induction type charging system
CN201510739U (en) * 2009-07-16 2010-06-23 深圳市三子科技有限公司 Gaming device combination capable of being wirelessly charged
CN201504123U (en) * 2009-09-18 2010-06-09 陕西伏特龙电力有限公司 Vehicle-mounted non-contact power supply
CN202068222U (en) * 2010-07-01 2011-12-07 苏州宝时得电动工具有限公司 Wireless charging system

Also Published As

Publication number Publication date
CN102315691A (en) 2012-01-11

Similar Documents

Publication Publication Date Title
CN102315691B (en) Wireless charging system and wireless charging method
US11063635B2 (en) Device and system for power transmission
JP7026646B2 (en) A wireless power transmission control method in a resonance type wireless power transmission system, a wireless power transmission device using the same, and a wireless power receiving device using the same.
JP4956539B2 (en) Contactless charging method and contactless charging system
US20180342908A1 (en) System and method for coded communication signals regulating inductive power transmissions
US8519667B2 (en) Mobile wireless charger system
CN202068222U (en) Wireless charging system
KR100566220B1 (en) Contactless battery charger
US8729852B2 (en) Method for identification of a light inductive charger
CN102138270B (en) Device and method for the generation, storage, and transmission of electric energy
CN103828174A (en) Battery pack having a separate power supply device for a wireless communication device of the battery pack
KR20130020437A (en) Wireless power receiver for controlling wireless power by using switch
WO2014114069A1 (en) Capacitive storage-type rechargeable battery and charging device thereof
CN102725940A (en) Non-contact power transmission system and non-contact power transmission apparatus
CN103166279A (en) Mobile power supply
CN108988511A (en) A kind of efficient wireless charging method and wireless charging device
KR20150124716A (en) wireless charging module-base
US9787104B2 (en) Power transmission system
CN104901372A (en) Wireless charging foreign matter detection apparatus and method
CN202759261U (en) Wireless charging type mobile power supply
CN208272715U (en) A kind of wireless electric energy transmission device with identification and resonance decoupling function
CN202939572U (en) Wireless charging mouse
US20180324930A1 (en) Wall switch base of an electric light
CN208635061U (en) A kind of wireless charging electric light
CN202586464U (en) Wireless charging system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant