CN205863985U - A kind of wireless charging output device - Google Patents
A kind of wireless charging output device Download PDFInfo
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- CN205863985U CN205863985U CN201620751999.8U CN201620751999U CN205863985U CN 205863985 U CN205863985 U CN 205863985U CN 201620751999 U CN201620751999 U CN 201620751999U CN 205863985 U CN205863985 U CN 205863985U
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- numerical control
- wireless charging
- isolating transformer
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Abstract
This utility model relates to wireless charging field, is specifically related to a kind of wireless charging output device, including: isolating transformer, the primary side of this isolating transformer is connected with DC supply input end；First numerical control switch unit, the first numerical control switch unit is by being switched on or switched off in the primary side of isolating transformer generation alternating current；Wireless coil module, the externally AC energy needed for output wireless charging；Information extraction unit, it is thus achieved that corresponding real time information, and be transferred in processor unit；Processor unit, this processor unit obtains control signal according to real time information and controls the first numerical control switch cell operation.This utility model, by a kind of wireless charging output device of design, is removed the module of tradition large volume high power consumption high cost, is simplified circuit, thus reach to reduce power attenuation, promote the whole efficiency of wireless charging output device, cost is greatly lowered simultaneously, reduces small product size.
Description
Technical field
This utility model relates to wireless charging field, is specifically related to a kind of wireless charging output device.
Background technology
The technology of wireless charging system realizes, including wireless charging output submodule group and wireless charging input submodule two
Point, described wireless charging output submodule group produces the alternating current needed for wireless charging, then by the alternating current needed for wireless charging
Drive the wireless charging output winding module transmission alternating electromagnetism to give wireless charging input coil module, will sense the most again
Alternating current turns direct current and is powered to equipment.
Wireless charging output the implementing of submodule group, it is generally divided into power module, low-frequency current power transmission line, wireless
Charging output circuit module, four parts of transmitting coil module, and power supply is divided into two classes: and a class is industrial-frequency alternating current,
Another kind of is possible be with the unidirectional current of interference signal.Interference signal on the unidirectional current of described interference signal includes 10-300Hz
The big voltage AC signal of frequency range and the small voltage AC signal of 300Hz-10Khz frequency range, the big electricity of described 10-300Hz frequency range
Pressure AC signal can cause direct current power source voltage change greatly, causes wireless charging output unbalance or lost efficacy, and described
The small voltage AC signal of 300Hz-10Khz frequency range can disturb the signal of communication of wireless charging system operation, causes wireless
Cannot proper communication and inefficacy during charging.
In first kind wireless charging output submodule group, the power module of first kind wireless charging output submodule group is generally
Industrial-frequency alternating current is converted to the power supply adaptor of low-voltage DC；Described low-frequency current power transmission line is straight for being only suitable for conducted power
Stream electricity and the conventional electric wire less than 1Khz AC energy, such as USB line；Described wireless charging output circuit module comprises by control
The bridge inverter main circuit that device IC processed controls, described bridge inverter main circuit is at least made up of, by described the gate-controlled switch of two series connection
Controller IC controls order and the time of switch, and the contact that is electrically connected at the gate-controlled switch of two described series connection produces and meets demand
Alternating current；The alternating current that described wireless charging output circuit module produces is changed into alternation magnetic by described transmitting coil module
?.Described wireless charging output circuit module and two parts of described transmitting coil module typically can be arranged in same shell
Make wireless charging emitter product, or few in the case of be mounted in that be divided into two or more part but close mechanical
In the assembly housing linked together.
First, industrial-frequency alternating current is converted to the Circuits System of low-voltage DC by power supply adaptor, including for inversion
Switch is with for exporting the circuit that half bridge rectifier two parts height of low-voltage DC is lost, and overall efficiency is usually no more than
90%.
Secondly, low-voltage DC is converted to the circuit system of wireless charging alternating current by wireless charging output circuit module
System, including the circuit of this parameter dominant loss of numerical control bridge inverter main circuit, its efficiency is typically not over 90%.
Thus, it is supposed that the work effect of power supply adaptor is 85%, and low-voltage DC is passed by wireless charging mode
Passing wireless charging and receive the efficiency in device procedures also about 85%, the efficiency of the most whole wireless charging system is only
72.25%, therefore this can cause energy dissipation and produce substantial amounts of heat.
And in reality, the heat that the wireless charging output subsystem system of output 5W produces is generally 2W, and if upgrading
For the wireless charging system of 20W, the heat of generation will reach 12W, or the skin temperature of about 120 DEG C, and this will be ten
Divide danger.
When wireless charging output device power is less than 5W when, described low-frequency current power transmission line, wireless charging output electricity
The cost of the wireless charging emitter product of road module, transmitting coil module composition is relatively low, about 5-6 U.S. dollar, but when output
When power is increased to 20W, described wireless charging emitter product cost can reach 20 U.S. dollars.And export the power supply adaptor of 5W with
The power supply adaptor of output 20W, its cost is 1 U.S. dollar and 2 U.S. dollars respectively.Therefore prior art is used to realize wireless charging output
Submodule group, it will high power wireless charging system can not be promoted because of high cost.
Owing to described wireless charging output submodule group can produce substantial amounts of heat, to such an extent as to wireless charging is caused to receive equipment
Such as mobile phone crash, damage, therefore use traditional approach realize wireless charger in order in realizing high-output power and also low
Temperature, necessarily uses and adds the mode such as large volume and cooling surface area, addition radiator fan, isolation thermal source, which results in product body
Long-pending very big, mechanical structured member cost increases considerably, thus is unfavorable for producing and transport.Therefore, high in the first kind to be popularized
Power wireless charging system, needs to solve the efficiency of wireless charging output sub-module, volume, Cost Problems.
In Equations of The Second Kind wireless charging output submodule group, the power module of Equations of The Second Kind wireless charging output submodule group is generally
DC/DC power circuit, its function is that the unidirectional current of the fluctuation of input is converted to preferable muting constant voltage DC electricity.Second
Class wireless charging output submodule group is generally used in the occasion that high capacity cell is powered, such as automobile.
But, the described general efficiency of DC/DC power circuit only has about 90%, therefore at output relatively high power wireless charging
Also huge heat can be produced when energy.And described DC/DC power circuit quality more high cost is the highest, and quality is the highest
Volume is the biggest.
Meanwhile, the bridge inverter main circuit that traditional wireless charging output circuit module comprises operationally is waited, in order to improve
Efficiency reduces heat, and the time needing the gate-controlled switch of described series connection to simultaneously close off is the shortest general according to practical situation
For 50-300ns, in other words will produce the interference signal of about 1.6-10Mhz, then be passed by described DC/DC power circuit
Lead on power supply, other carries are produced impact at the equipment of identical power supply.On automobile, the data of CAN
Communication frequency is usually 1-10Mhz, is the most easily affected by the interference signal of this power-type, causes brake failure, control
The serious consequences such as inefficacy.Especially on motor bus, lay a wireless charging output device due to needs for each seat, then
Risk is the highest.
Therefore, high power wireless charging system in Equations of The Second Kind to be popularized, need to solve the effect of wireless charging output sub-module
Rate, cost, anti-external interference and the problem producing super interference.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, it is provided that a kind of wireless charging
Electricity output device, need solve first kind wireless charging output sub-module efficiency, volume and Cost Problems, and Equations of The Second Kind without
The line charging efficiency of output sub-module, cost, anti-external interference and the problem producing signal disturbing.
This utility model solves its technical problem and be the technical scheme is that a kind of wireless charging output device of offer,
Including:
DC supply input end；
Isolating transformer, the primary side of this isolating transformer is connected with DC supply input end；
First numerical control switch unit, this first numerical control switch unit is arranged on the master of DC supply input end and isolating transformer
Between level side, the first numerical control switch unit is by being switched on or switched off in the primary side of isolating transformer generation alternating current；
Wireless coil module, this wireless coil module is connected with the primary side of isolating transformer, and externally exports wireless charging
AC energy needed for electricity；
Information extraction unit, this information extraction unit is connected with isolating transformer, this information extraction unit for extract every
From, filter and nurse one's health the current information on transformator, it is thus achieved that corresponding real time information, and being transferred in processor unit；
Processor unit, this processor unit is connected, at this with the first numerical control switch unit and information extraction unit respectively
Reason device unit obtains control signal according to real time information and controls the first numerical control switch cell operation.
Wherein, preferred version is: this first numerical control switch unit includes that the first numerical control switch and the first numerical control drive module,
This first numerical control switch is arranged between DC supply input end and the primary side of isolating transformer, this first numerical control drive module with
Processor unit connects, and this processor unit produces and includes that switch frequency signal, duty cycle of switching information and power adjust letter
Number, this first numerical control drives module to drive the first numerical control switch to be switched on or switched off according to above-mentioned signal.
Wherein, preferred version is: this processor unit and information extraction unit are arranged at the primary side of isolating transformer；
This wireless charging output device also includes an isolated form signal transmission unit, and this isolated form signal transmission unit becomes with isolation respectively
Depressor, processor unit and the first numerical control drive module to connect, this isolated form signal transmission unit for by switch frequency signal,
The first numerical control that duty cycle of switching information and power adjustment signal are transferred to primary side from isolating transformer primary side drives mould
In block.
Wherein, preferred version is: this processor unit and information extraction unit are arranged at the primary side of isolating transformer；
This first numerical control switch unit includes the first numerical control switch, and this first numerical control switch is connected with processor unit, this processor list
Unit produces and includes switch frequency signal, duty cycle of switching information and power adjustment signal, and this processor unit is according to above-mentioned letter
Number drive the first numerical control switch be switched on or switched off.
Wherein, preferred version is: this first numerical control drives module to include that one connects Electric drive module, and this connects Electric drive module bag
Including a driving signal preset, this connects Electric drive module and is just connecing electricity and do not receiving switch frequency signal and duty cycle of switching letter
During breath, the first numerical control switch is driven to be switched on or switched off according to default driving signal.
Wherein, preferred version is: this DC supply input end is rectification energy-storage module, and this rectification energy-storage module includes an electricity
Holding, the input of this rectification energy-storage module electrically connects with industrial frequency AC, the outfan of this rectification energy-storage module and isolating transformer
Primary side connect, this rectification energy-storage module is for being unidirectional current by industrial frequency AC electric rectification, and is stored in electric capacity.
Wherein, preferred version is: this wireless charging output device also include AC power adapter higher than 1Khz and
AC power transmission cable higher than 1Khz, should higher than AC power adapter of 1Khz be arranged on respectively with isolation transformation
The primary side of device and the AC power transmission cable higher than 1Khz connect, should AC power transmission cable higher than 1Khz with
Wireless coil module connects, and should be used for being easy to remote by isolating transformer generation by the AC power transmission cable higher than 1Khz
The alternating current of transmission is also delivered to remote outer wireless coil module.
Wherein, preferred version is: this wireless charging output device includes numerical control gating switch and isolating transformer primary side
Second rectifying and voltage-stabilizing module, this numerical control gating switch respectively with primary side, the isolating transformer primary side second of isolating transformer
Rectifying and voltage-stabilizing module, processor unit and wireless coil module connect；This processor unit produces and selects signal and be transferred to number
In control gating switch, the alternating current transmission that the primary side of isolating transformer exports is arrived by this numerical control gating switch according to selection signal
In isolating transformer primary side the second rectifying and voltage-stabilizing module or wireless coil module；This isolating transformer primary side second rectification is steady
Die block is for being unidirectional current by AC rectification and storing, and exports in direct current power receiving equipment.
Wherein, preferred version is: this wireless charging output device also includes that the second numerical control switch and alternating current-direct current power connect
Device, this second numerical control switch respectively with isolating transformer primary side the second rectifying and voltage-stabilizing module, alternating current-direct current power connector and place
Reason device unit connects；This second numerical control switch is switched on or switched off according to processor unit, and this alternating current-direct current power connector is used
In output AC electricity and unidirectional current, this alternating current-direct current power connector is connected with wireless coil module or direct current power receiving equipment.
Wherein, preferred version is: also include filter unit between this DC supply input end and primary side of isolating transformer,
This filter unit is high pass filter or envelope filtering circuit, and this filter unit is for by the height of the electric current on DC supply input end
Filter in 10Hz and less than the ripple of 10Khz frequency, it is to avoid be crosstalked into the primary side of isolating transformer and at information retrieval
Noise jamming is produced on unit.
The beneficial effects of the utility model are, compared with prior art, this utility model is by a kind of wireless charging of design
Electricity output device, removes the module of tradition large volume high power consumption high cost, simplifies circuit, thus reaches to reduce power attenuation, carries
Rise the whole efficiency of wireless charging output device, cost is greatly lowered simultaneously, reduces small product size；And by the first numerical control
The cooperation of switch element, information extraction unit and processor unit, it is achieved that outside improving efficiency, reducing cost and volume, filter
Boundary's noise and avoid produce interference signal purpose.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the electrical block diagram of this utility model a kind of wireless charging output device；
Fig. 2 is the electricity that this utility model has the wireless charging output device of the AC power transmission cable higher than 1Khz
Line structure schematic diagram；
Fig. 3 is the electrical block diagram that this utility model has the wireless charging output device of numerical control gating switch；
Fig. 4 is the electrical block diagram that this utility model has the wireless charging output device of the second numerical control switch；
Fig. 5 is the electrical block diagram that this utility model has the wireless charging output device of high pass filter；
Fig. 6 is the electrical block diagram that this utility model has the wireless charging output device of envelope filtering circuit；
Fig. 7 is the electrical block diagram of this utility model wireless charging another embodiment of output device.
Detailed description of the invention
In conjunction with accompanying drawing, preferred embodiment of the present utility model is elaborated.
As it is shown in figure 1, this utility model provides the preferred embodiment of a kind of wireless charging output device.
A kind of wireless charging output device, including DC supply input end, isolating transformer 12, wireless coil module 13, the
The master of one numerical control switch unit 14, information extraction unit 15 and processor unit 16, DC supply input end and isolating transformer 12
Level side connects, and wireless coil module 13 is connected with the primary side of isolating transformer 12, and the first numerical control switch unit 14 is arranged on directly
Between stream electrical input and the primary side of isolating transformer 12, information extraction unit 15 is connected with isolating transformer 12, processor
Unit 16 is connected with the first numerical control switch unit 14 and information extraction unit 15 respectively, is described in detail below:
In the DC supply input end of the present embodiment, DC supply input end, for input dc power I1, by the first numerical control
Switch element 14 is converted into the alternating current V1 higher than 1Khz, and is input in the primary side of isolating transformer 12.
Further, this DC supply input end is rectification energy-storage module 11, and this rectification energy-storage module 11 includes an electric capacity C1,
The input of this rectification energy-storage module 11 is connected with industrial-frequency alternating current V0, the outfan of this rectification energy-storage module 11 and isolation transformation
The primary side of device 12 connects, and this rectification energy-storage module 11 is used for industrial-frequency alternating current V0 rectification being unidirectional current I1 ', i.e. unidirectional current
I1, and be temporarily stored in electric capacity C1.Wherein, the two ends of rectification energy-storage module 11 respectively with the primary side of isolating transformer 12
Two ends connect, and electric capacity C1 is connected in parallel on the two ends of rectification energy-storage module 11.
In the isolating transformer 12 of the present embodiment, the primary side of isolating transformer 12 accesses the alternating current higher than 1Khz
V1, the output of its primary side higher than the alternating current V2 of 1Khz, isolating transformer 12 refer to input winding and output winding strap electrically every
From transformator, isolating transformer 12 accidentally touches electrical body in order to avoiding simultaneously, the isolation of transformator be isolate former secondary around
The respective electric current of coil.
Further, isolating transformer 12 has multichannel winding, and wherein a road winding is that the first numerical control switch unit 14 carries
Energizing quantity；Wire in multichannel winding uses multiply enamel-covered wire or the flat cable realization reducing the Kelvin effect higher than 1Khz,
The radius of enamel-covered wire or the half of the thickness of flat cable, less than the skin depth under the upper limit operation frequency set.
In the first numerical control switch unit 14 of the present embodiment, this first numerical control switch unit 14 is arranged on DC supply input
Between end and the primary side of isolating transformer 12, the first numerical control switch unit 14 is by being switched on or switched off at isolating transformer 12
The alternating current V1 higher than 1Khz is produced in primary side.
Further, the first numerical control switch unit 14 includes that the first numerical control switch 141 and the first numerical control drive module 142,
This first numerical control switch 141 is arranged between the primary side of DC supply input end and isolating transformer 12, and this first numerical control drives
Module 142 is connected with processor unit 16, this processor unit 16 produce include switch frequency signal, duty cycle of switching information with
And the control signal such as power adjustment signal, this first numerical control drives module 142 to drive the first numerical control switch 141 according to control signal
It is switched on or switched off.Wherein, the first numerical control switch 141 is arranged on one end of DC supply input end and the master of isolating transformer 12
In one end of level side, it is preferably provided in the outfan of the input of DC supply input end and the primary side of isolating transformer 12.
Further, this first numerical control drives module 142 to include that one connects Electric drive module, and this connects Electric drive module and includes one
The driving signal preset, this connects Electric drive module and is just connecing electricity and do not receiving switch frequency signal and duty cycle of switching information
Time, drive the first numerical control switch 141 to be switched on or switched off according to default driving signal.Specifically, 1, processor unit is worked as
After 16 do not have the time width of output switch frequency signal and duty cycle of switching information to exceed default time T1, connect electric drive mould
Block can be according to the driving signal preset, and output frequency F1 gives described first numerical control switch 141 voluntarily, for driving the first numerical control to open
Close 141 to be operated；2 and when processor unit 16 has output switch frequency signal and duty cycle of switching information to connecing electric drive
During module, connecing Electric drive module will drive according to the switch frequency signal of processor unit 16 output and duty cycle of switching information
Dynamic first numerical control switch 141 is operated.
Preferably, drive signal be with processor unit 16 output signal with frequency with dutycycle low and high level signal,
Divide low and high level signal or the low and high level signal through digital decoding.
Wherein, the power supply electric energy of Electric drive module is connect from DC supply input end or the primary side of described isolating transformer 12
The energy of rectification output.
In the wireless coil module 13 of the present embodiment, this wireless coil module 13 connects with the primary side of isolating transformer 12
Connect, and externally export the alternating current V2 higher than 1Khz needed for wireless charging.
In the information extraction unit 15 of the present embodiment, this information extraction unit 15 is connected with isolating transformer 12, this letter
Breath extraction unit 15 is for extracting the current information on Isolation and conditioning transformator, it is thus achieved that corresponding real time information, and passes
It is passed in processor unit 16.
Specifically, described information extraction unit 15 is realized with signal conditioning circuit by sampling sensor, such as resistance, filtering,
Have and extract ac current signal, the ability of average DC current signal from the primary side of isolating transformer 12, and from wireless
The power of the external wireless device sensed in coil module 13 adjusts the ability of digital signal, and is transferred to processor unit 16
In.
In the processor unit 16 of the present embodiment, this processor unit 16 respectively with the first numerical control switch unit 14 and letter
Breath extraction unit 15 connects, and this processor unit 16 obtains control signal according to real time information and controls the first numerical control switch unit
14 work.
Wherein, processor unit 16 includes following functions: 1, monitor the primary side output voltage of isolating transformer 12；2, read
Take the signal of information extraction unit 15 output；3, decoding power adjusts digital signal；4 calculate present output power needs with next step
Power to be exported；5, isolated form signal transmission unit output power signal is driven；6, drive the transmission of isolated form signal single
Signal of communication, to outside wireless charging device, is transmitted in unit；7, detection external wireless charger signal is produced；8, outside determining whether
Portion's wireless charging device；9, metallic foreign body is determined whether.
Further, processor unit 16 and information extraction unit 15 are arranged at the primary side of isolating transformer 12；Should
Wireless charging output device also includes an isolated form signal transmission unit, this isolated form signal transmission unit respectively with isolation transformation
Device 12, processor unit 16 and the first numerical control drive module 142 to connect, and this isolated form signal transmission unit is for by control signal
The first numerical control being transferred to primary side from isolating transformer 12 primary side drives module 142.
Preferably, isolated form signal transmission unit is that digital optocoupler part, electric capacity C1 or numeral magnetic coupling device are arbitrary
A kind of.
In the present embodiment, wireless charging output device also includes isolating transformer primary side the first rectifying and voltage-stabilizing module
18, power rectification Voltage stabilizing module is connected with the primary side of isolating transformer 12, isolating transformer primary side the first rectifying and voltage-stabilizing mould
Block 18 includes that regulator rectifier circuit 181 and an external circuit thereof, isolating transformer primary side the first rectifying and voltage-stabilizing module 18 are used for
The output of the primary side of isolating transformer 12 is carried out rectification and voltage stabilizing, produces the DC voltage set, and be transferred to processor
In unit 16, power for processor unit 16.
In the present embodiment, wireless charging output device includes two kinds of working methods.
Working method one, for detecting power receiving equipment state:
When detecting power receiving equipment state, processor unit 16 controls wireless coil module 13 and produces detectable signal, if
At the signal of time width T2 internal information extraction unit 15 feedback set, processor unit 16 is allowed to be judged as not having the external world to set
Standby, after processor unit 16 will be according to setting wait certain time interval T 2 ', restart detection.
Working method two, for power output state:
Under detection mode, when the signal of information extraction unit 15 feedback, processor unit 16 is allowed to judge there is external device,
And be placed in the induction range of wireless coil module 13, it is defeated that processor unit 16 controls wireless charging output device ingoing power
Do well, and attempt communicating with external device, and after communicating successfully, confirm that external device is exactly wireless charging input
Equipment, and be that wireless charging input equipment carries out wireless charging according to agreement.
When wireless charging input equipment does not exists, or after being removed, it is defeated that processor unit 16 controls wireless charging again
Go out device and enter detection power receiving equipment state.
As in figure 2 it is shown, this utility model provides the wireless charging output of a kind of power transmission cable having higher than 1Khz
The preferred embodiment of device.
Wireless charging output device also includes the AC power adapter 21 higher than 1Khz and the alternating current higher than 1Khz
Power transmission cable 22, should higher than AC power adapter 21 of 1Khz be arranged on respectively with the primary side of isolating transformer 12
Connect with the AC power transmission cable 22 higher than 1Khz, the AC power transmission cable 22 of 1Khz and wireless line should be higher than
Circle module 13 connects, and should be used for being easy to remote by isolating transformer 12 generation by the AC power transmission cable 22 higher than 1Khz
It is delivered to remote outer wireless coil module 13 to the alternating current V2 higher than 1Khz of transmission low-loss.Wherein, it is higher than
The AC power transmission cable 22 of 1Khz has the feature of the extremely low loss transmission AC energy higher than 1Khz.
As it is shown on figure 3, this utility model provides the preferable of a kind of wireless charging output device with numerical control gating switch
Embodiment.
Wireless charging output device includes numerical control gating switch 31 and isolating transformer primary side the second rectifying and voltage-stabilizing module
32, this numerical control gating switch 31 respectively with primary side, isolating transformer primary side the second rectifying and voltage-stabilizing mould of isolating transformer 12
Block 32, processor unit 16 and wireless coil module 13 connect；This processor unit 16 produces and selects signal and be transferred to numerical control
In gating switch 31, this numerical control gating switch 31 according to select that the primary side of isolating transformer 12 exports by signal higher than 1Khz
Alternating current V2 be transferred in isolating transformer primary side the second rectifying and voltage-stabilizing module 32 or wireless coil module 13；This isolation becomes
Depressor primary side the second rectifying and voltage-stabilizing module 32 is the unidirectional current I2 higher than 1Khz for will be above the alternating current V2 rectification of 1Khz
Electricity and storing, and exports in direct current power receiving equipment.
Wherein, the unidirectional current I2 higher than 1Khz of isolating transformer primary side the second rectifying and voltage-stabilizing module 32 output is to processing
In device unit 16, processor unit 16 monitor in real time isolating transformer primary side the second rectifying and voltage-stabilizing module 32 higher than 1Khz's
The voltage signal of unidirectional current I2.
Further, wireless charging output device also includes alternating current-direct current power connector 33, this alternating current-direct current power connector
33 for the low-loss ground output alternating current V2 higher than 1Khz and the unidirectional current I2 higher than 1Khz, this alternating current-direct current power connector 33
It is connected with wireless coil module 13 or direct current power receiving equipment.Wherein, alternating current-direct current power connector 33 includes some COM1s, logical
Letter port is connected with processor unit 16.
Further, the exchange of the primary side that the public input of numerical control gating switch 31 is connected to isolating transformer 12 is defeated
Going out end, the first outfan of numerical control gating switch 31 connects the ac input end of wireless coil module 13, numerical control gating switch 31
Second outfan connect isolating transformer primary side the second rectifying and voltage-stabilizing module 32 input, the control of numerical control gating switch 31
Signal input part processed is connected to processor unit 16, processor unit 16 control the public input electricity of numerical control gating switch 31
It is connected to which outfan.
In the present embodiment, wireless charging output device includes two kinds of working methods.
Working method one, for alternately detecting power receiving equipment state:
When alternately detection power receiving equipment state, processor unit 16, according to setting timesharing, controls numerical control gating switch 31
Carry out output switching；At a time numerical control gating switch 31 output is to wireless coil module 13, and processor unit 16 is controlled
Wireless charging output device processed passes through wireless coil module 13, sends and detects the signal with or without external device.
If the signal of signal extraction unit feedback is judged as nothing by processor unit 16 in the time width T2 set
External device is placed on by Wireless charging coil module, and processor unit 16 will control numerical control gating switch 31 and will be outputted to
Isolating transformer primary side the second rectifying and voltage-stabilizing module 32, then processor unit 16 controls wireless charging output device in isolation
Transformer secondary the second rectifying and voltage-stabilizing module 32 produces the DC voltage set.
If the signal of signal extraction unit feedback in the time width T3 set, or isolating transformer primary side the
The output end voltage variable signal of two rectifying and voltage-stabilizing modules 32, or the signal COM1 of alternating current-direct current power connector 33 is logical
Know that processor unit 16 has the appearance of direct current power receiving equipment, be all judged as isolating transformer primary side second by processor unit 16
Rectifying and voltage-stabilizing module 32 outfan does not connect direct current power receiving equipment, then processor unit 16 will control numerical control choosing again
Open up pass 31 output to wireless coil module 13.
Repeat the process of above-mentioned alternately detection.
Working method two, for power output state:
If when detecting external device by wireless coil module 13, processor unit 16 judges wireless coil module 13
Induction range in occur in that external device, then processor unit 16 will keep numerical control gating switch 31 output connect shape
State is constant, and performs handover to described power output state according to setting wireless charging output device, starts according to setting
Mode attempts carrying out wireless charging output energy supply.
Direct current is being detected by electricity by isolating transformer primary side the second rectifying and voltage-stabilizing module 32 or signal extraction unit
During equipment, processor unit 16 judges that described outfan connects a upper direct current power receiving equipment, then processor unit 16 will
The output connection status keeping numerical control gating switch 31 is constant, and switches over according to setup control wireless charging output device
To described power output state, the mode according to setting that starts attempts carrying out direct current supply.
Processor unit 16 can also be according to the current signal of signal extraction unit feedback according to setting fine setting isolation transformation
The output voltage values V1 of device primary side the second rectifying and voltage-stabilizing module 32, to offset isolating transformer primary side the second rectifying and voltage-stabilizing mould
Block 32 output is to direct current cables loss during direct current power receiving equipment so that the voltage reaching direct current power receiving equipment is close or equal to
The purpose of target voltage.The letter that processor unit 16 can also feed back according to the signal COM1 of alternating current-direct current power connector 33
Breath, adjusts the magnitude of voltage V1 of isolating transformer primary side the second rectifying and voltage-stabilizing module 32 output, meets setting of described power receiving equipment
Meter requirement.
When processor unit 16 judges that power receiving equipment has been removed, wireless charging output device will be controlled and return to alternately
Detection power receiving equipment state.
As shown in Figure 4, this utility model provides the preferable of a kind of wireless charging output device with the second numerical control switch
Embodiment.
This wireless charging output device also includes the second numerical control switch 41, this second numerical control switch 41 respectively with isolation transformation
Device primary side the second rectifying and voltage-stabilizing module 32, alternating current-direct current power connector 33 and processor unit 16 connect；This second numerical control is opened
Closing 41 to be switched on or switched off according to processor unit 16, this alternating current-direct current power connector 33 is higher than for the output of low-loss ground
The alternating current V2 of 1Khz and the unidirectional current I2 higher than 1Khz, this alternating current-direct current power connector 33 and wireless coil module 13 or direct current
Power receiving equipment connects.
The input of alternating current-direct current power connector 33 is connected to the public output of the second numerical control switch 41, and alternating current-direct current merit
The outfan of rate adapter 33 is connected in information extraction unit 15, and alternating current-direct current power connector 33 also includes some communication
Port, COM1 is connected to processor unit 16.The first input end of the second numerical control switch 41 is connected to isolating transformer 12
Secondary side output terminal, the second input of the second numerical control switch 41 is connected to isolating transformer primary side the second rectifying and voltage-stabilizing mould
The outfan of block 32.The input of numerical control gating switch 31 is connected to the secondary side output terminal of isolating transformer 12, and numerical control gates
The outfan of switch 31 is connected to the input of isolating transformer primary side the second rectifying and voltage-stabilizing module 32.Numerical control gating switch 31
With the second numerical control switch 41 by there being processor unit 16 to be controlled.
In the present embodiment, wireless charging output device includes three kinds of working methods.
Working method one, it is judged that way of output state:
When wireless charging output device does not has external output, information extraction unit 15 can feed back corresponding signal to
Processor unit 16, enters judge way of output state when at this time processor unit 16 controls wireless charging output device, and
And be defaulted as detecting under direct current supply mode the state of external device, control simultaneously numerical control gating switch 31 turn on, the second numerical control
The public output of switch 41 is connected to the second input, and controls wireless charging output device in isolating transformer primary side
Default magnitude of voltage V1 is exported in second rectifying and voltage-stabilizing module 32.
Under judging way of output state, if inserting special wireless coil module on alternating current-direct current power connector 33
13, then information extraction unit 15 will produce one and meet default signal S1 to processor unit 16, or straight by handing over
The COM1 notifier processes device unit 16 of stream power connector 33 so that processor unit 16 is by wireless charging output device
Mode of operation switches to the pattern of output wireless charging energy, and enters detection external device under corresponding wireless charging mode
State.If information extraction unit 15 produces another meets default signal S2 to processor unit 16 or straight by handing over
The COM1 notifier processes device unit 16 of stream power connector 33 so that processor unit 16 is by wireless charging output device
Mode of operation switches to the pattern of output DC energy, and enters the shape detecting external device under corresponding direct current supply mode
State.
Working method two, detection power receiving equipment and power output state under direct current supply mode:
Under direct current supply mode, under the state of detection external device, if the outfan of alternating current-direct current power connector 33
It is connected to a direct current power receiving equipment, then information extraction unit 15 will produce one and meet intended signal S3 to processor
Unit 16, or the magnitude of voltage variable signal that system exports in isolating transformer primary side the second rectifying and voltage-stabilizing module 32 exceedes
One preset value VT1, or by the COM1 notifier processes device unit 16 of alternating current-direct current power connector 33, processor unit
The 16 power output states that wireless charging output device can be switched to DC power output.
Working method three, detection power receiving equipment state and power output state under wireless charging mode:
When detecting the state of external device under wireless charging output device is in wireless charging mode, processor unit 16
Wireless charging output device can be controlled and send detectable signal according to setting, if information extraction unit 15 produces effectively detects knot
Really signal, reminds processor unit 16 wireless charging output winding module side to have external device, processor unit 16 to control
Wireless charging output device enters the power output state of wireless charging and attempts carrying out wireless charging according to the mode of setting
Output energy supply.
When special wireless coil module 13 is removed, information extraction unit 15 will detection external device state or
Producing corresponding signal under power output state, processor unit 16 will control wireless charging output device and return to the straight of acquiescence
The state of external device is detected under stream power supply mode.
In the present embodiment, wireless charging output device includes two kinds of mode of operations, and wherein, the first is that wireless charging is defeated
Exit pattern, the second is direct current supply output mode:
After wireless coil module 13 is started working, under original state, control the first numerical control switch can be set according to predetermined
141 work and then the alternating current V2 higher than 1Khz of the primary side generation needs at isolating transformer 12, control the first number simultaneously
Control gating switch 31 gates the second outfan, and the second numerical control switch 41 turns on simultaneously, and processor unit 16 reads signal in real time and carries
Take the signal of unit feedback.
After alternating current-direct current power connector 33 electrically connects with wireless coil module 13, wireless coil module 13 can feed back one
First useful signal so that processor unit 16 controls the first numerical control gating switch 31 and gates the first outfan, simultaneously the second number
Control switch 41 cuts off, and processor unit 16 controls wireless coil module 13 and enters wireless charging mode of operation, for wireless charging
Electricity input equipment provides energy, and the first useful signal is included on signal extraction unit the pulse signal of generation, passes through alternating current-direct current
The identification signal of the secondary signal COM1 transmission of power connector 33.
When, after the electrical connection that alternating current-direct current power connector 33 disconnects with wireless coil module 13, processor unit 16 would not
Receive the first useful signal so that processor unit 16 controls wireless coil module 13 and returns to original state.
When alternating current-direct current power connector 33 electrically connects with direct current power receiving equipment, signal extraction unit, isolating transformer are secondary
Side the second rectifying and voltage-stabilizing module 32 or alternating current-direct current power connector 33 can provide the second useful signal to processor unit 16, process
Device unit 16 can keep current first numerical control gating switch 31 constant with the state of the second numerical control switch 41, and according in advance
Setup control controls wireless coil module 13 and enters direct current supply output mode, and for direct current supplying power for powered device, second has
Effect signal is included on signal extraction unit the current changing signal of generation, at isolating transformer primary side the second rectifying and voltage-stabilizing mould
The voltage change signal produced on block 32 outfan, the knowledge transmitted by the small-signal COM1 of alternating current-direct current power connector 33
Level signal,
When alternating current-direct current power connector 33 disconnects the electrical connection with direct current power receiving equipment, and processor unit 16 would not receive
Second useful signal so that processor unit 16 controls wireless coil module 13 and returns to original state.
As shown in Figure 5 and Figure 6, this utility model provides the preferable of a kind of wireless charging output device with filter unit
Embodiment.
Also including filter unit between this DC supply input end and primary side of isolating transformer 12, this filter unit is high
Bandpass filter 51 or envelope filtering circuit 52, this filter unit for by the electric current on DC supply input end higher than 10Hz and low
Ripple in 10Khz frequency filters, it is to avoid be crosstalked into the primary side of isolating transformer 12 and in information extraction unit 15
Produce noise jamming.
Wherein, high pass filter 51 is connected between the primary side of DC supply input end and isolating transformer 12；Envelope is filtered
Wave circuit 52 includes diode and electric capacity.
This filter unit also includes common mode/differential mode low pass filter.
As it is shown in fig. 7, this utility model provides the preferred embodiment of a kind of wireless charging output device.
Further, processor unit 16 and information extraction unit 15 are arranged at the primary side of isolating transformer 12；Should
First numerical control switch unit 14 includes the first numerical control switch 141, and this first numerical control switch 141 is connected with processor unit 16, should
Processor unit 16 produces and includes switching frequency, the control signal of duty cycle of switching information, and this processor unit 16 is according to control
Signal drives the first numerical control switch 141 to be switched on or switched off.
As described above, only this utility model most preferred embodiment, it is not intended to limit scope of the present utility model,
All equivalence changes made according to this utility model claim or modification, be all this utility model and contained.
Claims (10)
1. a wireless charging output device, it is characterised in that including:
DC supply input end；
Isolating transformer, the primary side of this isolating transformer is connected with DC supply input end；
First numerical control switch unit, this first numerical control switch unit is arranged on the primary side of DC supply input end and isolating transformer
Between, the first numerical control switch unit is by being switched on or switched off in the primary side of isolating transformer generation alternating current；
Wireless coil module, this wireless coil module is connected with the primary side of isolating transformer, and externally output wireless charging institute
The AC energy needed；
Information extraction unit, this information extraction unit is connected with isolating transformer, and this information extraction unit is used for extracting isolation, filter
Involve the current information on conditioning transformator, it is thus achieved that corresponding real time information, and be transferred in processor unit；
Processor unit, this processor unit is connected with the first numerical control switch unit and information extraction unit respectively, this processor
Unit obtains control signal according to real time information and controls the first numerical control switch cell operation.
Wireless charging output device the most according to claim 1, it is characterised in that: this first numerical control switch unit includes
One numerical control switch and the first numerical control drive module, and this first numerical control switch is arranged on the master of DC supply input end and isolating transformer
Level side between, this first numerical control drive module be connected with processor unit, this processor unit generation include switch frequency signal,
Duty cycle of switching information and power adjustment signal, this first numerical control drives module to drive the first numerical control switch according to above-mentioned signal
It is switched on or switched off.
Wireless charging output device the most according to claim 2, it is characterised in that:
This processor unit and information extraction unit are arranged at the primary side of isolating transformer；
This wireless charging output device also includes an isolated form signal transmission unit, this isolated form signal transmission unit respectively with every
Driving module to connect from transformator, processor unit and the first numerical control, this isolated form signal transmission unit is for by switching frequency
The first numerical control that signal, duty cycle of switching information and power adjustment signal are transferred to primary side from isolating transformer primary side is driven
In dynamic model block.
Wireless charging output device the most according to claim 1, it is characterised in that:
This processor unit and information extraction unit are arranged at the primary side of isolating transformer；
This first numerical control switch unit includes the first numerical control switch, and this first numerical control switch is connected with processor unit, this process
Device unit produces and includes switch frequency signal, duty cycle of switching information and power adjustment signal, and this processor unit is according to upper
Stating signal drives the first numerical control switch to be switched on or switched off.
Wireless charging output device the most according to claim 2, it is characterised in that: this first numerical control drives module to include one
Connecing Electric drive module, this connects Electric drive module and includes a driving signal preset, and this connects Electric drive module and is just connecing electricity and do not connecing
When receiving switch frequency signal and duty cycle of switching information, the first numerical control switch is driven to connect according to default driving signal
Or disconnect.
Wireless charging output device the most according to claim 1, it is characterised in that: this DC supply input end is rectification energy storage
Module, this rectification energy-storage module includes an electric capacity, and the input of this rectification energy-storage module electrically connects with industrial frequency AC, and this rectification is stored up
Can be connected with the primary side of isolating transformer by the outfan of module, it is straight that this rectification energy-storage module is used for industrial frequency AC electric rectification
Stream electricity, and be stored in electric capacity.
Wireless charging output device the most according to claim 1, it is characterised in that: this wireless charging output device also includes
AC power adapter higher than 1Khz and the AC power transmission cable higher than 1Khz, should be higher than the exchange electric work of 1Khz
Rate adapter is arranged on and is connected with the primary side of isolating transformer and the AC power transmission cable higher than 1Khz respectively, this height
AC power transmission cable in 1Khz is connected with wireless coil module, should use by the AC power transmission cable higher than 1Khz
In isolating transformer being produced the alternating current being easy to long-distance transmissions and being delivered to remote outer wireless coil module.
Wireless charging output device the most according to claim 1, it is characterised in that: this wireless charging output device includes number
Control gating switch and isolating transformer primary side the second rectifying and voltage-stabilizing module, this numerical control gating switch respectively with isolating transformer
Primary side, isolating transformer primary side the second rectifying and voltage-stabilizing module, processor unit and wireless coil module connect；
This processor unit produces and selects signal and be transferred in numerical control gating switch, and this numerical control gating switch is according to selecting signal
The alternating current transmission primary side of isolating transformer exported is to isolating transformer primary side the second rectifying and voltage-stabilizing module or wireless
In coil module；
This isolating transformer primary side the second rectifying and voltage-stabilizing module is for being unidirectional current by AC rectification and storing and defeated
Go out in direct current power receiving equipment.
Wireless charging output device the most according to claim 8, it is characterised in that: this wireless charging output device also includes
Second numerical control switch and alternating current-direct current power connector, this second numerical control switch is steady with the second rectification of isolating transformer primary side respectively
Die block, alternating current-direct current power connector and processor unit connect；This second numerical control switch is connected according to processor unit
Or disconnect, this alternating current-direct current power connector is for output AC electricity and unidirectional current, this alternating current-direct current power connector and wireless coil
Module or direct current power receiving equipment connect.
Wireless charging output device the most according to claim 1, it is characterised in that: this DC supply input end becomes with isolation
Also including filter unit between the primary side of depressor, this filter unit is high pass filter or envelope filtering circuit, this filtering list
Unit is for filtering the electric current on DC supply input end higher than 10Hz and less than the ripple of 10Khz, it is to avoid be crosstalked into every
From the primary side of transformator and in information extraction unit produce noise jamming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620751999.8U CN205863985U (en) | 2016-07-14 | 2016-07-14 | A kind of wireless charging output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620751999.8U CN205863985U (en) | 2016-07-14 | 2016-07-14 | A kind of wireless charging output device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205863985U true CN205863985U (en) | 2017-01-04 |
Family
ID=57646989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620751999.8U Withdrawn - After Issue CN205863985U (en) | 2016-07-14 | 2016-07-14 | A kind of wireless charging output device |
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| Country | Link |
|---|---|
| CN (1) | CN205863985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160086A (en) * | 2016-07-14 | 2016-11-23 | 邢益涛 | A kind of wireless charging output device |
-
2016
- 2016-07-14 CN CN201620751999.8U patent/CN205863985U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160086A (en) * | 2016-07-14 | 2016-11-23 | 邢益涛 | A kind of wireless charging output device |
| WO2018010538A1 (en) * | 2016-07-14 | 2018-01-18 | 深圳市特斯拉无线设备有限公司 | Output device for wireless charging |
| CN106160086B (en) * | 2016-07-14 | 2019-10-15 | 深圳市禾家欢科技有限公司 | A kind of wireless charging output device |
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Effective date of registration: 20170323 Address after: Shenzhen Nanshan District City, Guangdong province 518000 Liuxian Avenue Road North Industrial Zone, Ping Shan Da Yuan two building 9 306 Valley Patentee after: SHENZHEN TESILA WIRELESS EQUIPMENT CO., LTD. Address before: Jinxin Road, Baiyun District of Guangzhou City, Guangdong Province, No. 125 -906 510000 Patentee before: Xing Yitao |
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Effective date of registration: 20190108 Address after: 518000 Sculpture Home West 32 Floor, No. 8 Zhongkangnan Road, Meilin Street, Futian District, Shenzhen City, Guangdong Province Patentee after: Shenzhen legislative Advisory Management Service Co., Ltd. Address before: 518000 Guangdong Province Nanshan District Liuxian Avenue Pingshan Road Industrial Park North District Yungu Phase II 9 Building 306 Patentee before: SHENZHEN TESILA WIRELESS EQUIPMENT CO., LTD. |
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Effective date of registration: 20190124 Address after: 518000 Dongjiaotou Community, Shekou Street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Hejiahuan Technology Co., Ltd. Address before: 518000 Sculpture Home West 32 Floor, No. 8 Zhongkangnan Road, Meilin Street, Futian District, Shenzhen City, Guangdong Province Patentee before: Shenzhen legislative Advisory Management Service Co., Ltd. |
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