CN207150229U

CN207150229U - A kind of wireless power adapter and wireless charging system

Info

Publication number: CN207150229U
Application number: CN201720949027.4U
Authority: CN
Inventors: 黄昌松; 陈林锋; 贾勇
Original assignee: Meizu Technology Co Ltd
Current assignee: Meizu Technology Co Ltd
Priority date: 2017-07-31
Filing date: 2017-07-31
Publication date: 2018-03-27
Anticipated expiration: 2027-07-31

Abstract

The utility model discloses a kind of wireless power adapter and wireless charging system, charging system suitable for including wireless power adapter and terminal device, the terminal device is included comprising one or more charging paths in parallel, and each charging paths includes the charge pump charging submodule of one or more series connection；The wireless power adapter includes power conversion modules, control module, wireless communication module and electric energy transmitter module.Compared to prior art, in the utility model embodiment, the wireless power adapter to corresponding terminal device on the basis of electric energy is sent, it is also equipped with carrying out the function of radio communication with corresponding terminal device, so as to which the output electric energy of itself can not only be adjusted according to the actual demand of terminal device, it can also timely and accurately be responded in terminal equipment failure or wireless charging circuit failure, improve the charge efficiency and charging security of wireless charging.

Description

A kind of wireless power adapter and wireless charging system

Technical field

It the utility model is related to charging technique field, more particularly to a kind of wireless power adapter and wireless charging system.

Background technology

Stronger and stronger with electronic functionalities, the charging technique of electronic equipment is also constantly developed and entered Step, in order to lift the convenience of charging, wireless charging mode has slowly become a kind of new charge trend, radio source has been fitted The research of orchestration also progressively develops into very important problem.

Specifically, it can support that the terminal device of wireless charging is seldom on the market at present, matched radio source Adapter is also few.Under normal circumstances, propping up the wireless charging circuit in these terminal devices generally may include that electric energy connects Take-up circle, Buck converters (buck-converter) and Buck Charger (decompression is charging circuit).Therefore, it is matching Wireless power adapter also mostly just possess by civil power input electric energy electricity is transmitted to by the electric energy transmitter unit of itself The ability of sub- equipment, without possessing the communication capacity between electronic equipment, so that can not be according to the actual demand of electronic equipment The electric energy of itself output being adjusted, and, when electronic equipment breaks down or charging circuit breaks down, can not also make in time And accurately respond, consequently, it is possible to influenceing the efficiency and security of charging.

That is, existing wireless power adapter is present, charge efficiency is relatively low and charging security is relatively low asks Topic.

Utility model content

The utility model embodiment provides a kind of wireless power adapter and wireless charging system, existing to solve Charge efficiency present in wireless power adapter is relatively low and the problem of charging security is relatively low.

The utility model embodiment provides a kind of wireless power adapter, suitable for including wireless power adapter and The charging system of terminal device, the terminal device are included comprising one or more charging paths in parallel, each Charging paths include the charge pump charging submodule of one or more series connection；The wireless power adapter becomes including power Block, control module, wireless communication module and electric energy transmitter module are changed the mold, wherein：

The input of the power conversion modules electrically connects with civil power, output end and the input of the electric energy transmitter module Electrical connection, control terminal electrically connects with the output end of the control module, the alternating current inputted for receiving civil power, and by the friendship The electric energy transmitter module is defeated by stream fax；

The input of the output end of the electric energy transmitter module and the electric energy receiving module of terminal device is of coupled connections, and is used for When terminal device and wireless power adapter are in effective chargeable range, the alternating current is transmitted to the terminal and set Electric energy receiving module in standby；

The output end signal connection of wireless communication module in the input and terminal device of the wireless communication module, it is defeated Go out end to electrically connect with the input of the control module, filled for receiving the terminal device by what communication was sent Electric control information, and the charge control information is sent to the control module；

The control module, for according to the charge control information, adjusting the exchange of the power conversion modules output Electricity, to cause the alternating current to disclosure satisfy that the charge requirement and wireless charging electricity of the battery to be charged in the terminal device Loss demand in road.

Specifically, the control module, specifically for the alternating current exported by adjusting the power conversion modules, so that Obtaining the direct current that the rectification module in the terminal device exports is：

Wherein, the U_{a_out}Represent the voltage of the direct current of the rectification module output；The I_{a_out}Represent the rectification The electric current of the direct current of module output；The M is positive integer, represents the charge pump charging connected in each charging paths The number of module；The U_{c_out}Represent the charging voltage of the battery to be charged；The U_lRepresent the charge pump charging module And the loss pressure drop of circuit；The I_{c_out}Represent the charging current of the battery to be charged.

Alternatively, the power conversion modules include rectifier, AC-DC controllers, switching device, transformer, inverter And optocoupler, wherein：

The input of the rectifier electrically connects with civil power, and output end electrically connects with the input of the transformer, is used for The alternating current of civil power input is received, and the alternating current is converted into DC power transmission to the transformer；

The output end of the transformer electrically connects with the input of the inverter, and control terminal is defeated with the switching device Go out end electrical connection, sent for receiving the direct current, and by the direct current to the inverter；

The output end of the inverter electrically connects with the electric energy transmitter module, for the direct current to be converted into high frequency Alternating current, and the high-frequency alternating current is sent to the electric energy transmitter module；

The input of the optocoupler electrically connects with the control module, and output end is defeated with the AC-DC controllers Enter end electrical connection, sent under the control of the control module, generating corresponding feedback signal, and by the feedback signal To the AC-DC controllers；

The output end of the AC-DC controllers electrically connects with the input of the switching device, for according to the feedback Signal, control the conducting dutycycle of the switching device；

The switching device, for carrying out switch motion according to the conducting dutycycle, adjust the work of the transformer State, to change the direct current of the transformer output.

Further, the wireless power adapter also includes protection module, wherein：

The input of the protection module electrically connects with the output end of the power conversion modules, output end and the electric energy The input electrical connection of transmitter module, for when the real-time working parameter of the wireless power adapter exceedes predetermined threshold value, Abnormal work protection is carried out to the wireless power adapter.

Specifically, the wireless communication module includes bluetooth communication, closely purple honeybee communication module, NFC communication mould Block or infrared communication module.

Further, the wireless communication module, it is additionally operable to receive the wireless communication module in the terminal device and sends , the voltage of the direct current of rectification module output in the terminal device, it is and the rectification module in the terminal device is defeated The voltage of the direct current gone out is sent to the control module；

The control module, the voltage of direct current exported according to the rectification module in the terminal device is additionally operable to, is adjusted The alternating current of whole power conversion modules output, with by the control module in the terminal device determine the terminal device with The wireless power adapter is in effective chargeable range.

Specifically, the control module, specifically for if it is determined that the direct current that the rectification module in the terminal device exports The voltage of electricity then increases the alternating current that the power conversion modules export no more than the minimum voltage threshold of setting；If it is determined that institute The voltage of the direct current of the rectification module output in terminal device is stated not less than the maximum voltage threshold of setting, then reduces the work( The alternating current of rate conversion module output.

Alternatively, the electric energy transmitter module, specifically for being incited somebody to action by electric induction, magnetic induction, magnetic resonance or electromagnetic wave The alternating current is sent to the electric energy receiving module in the terminal device.

Alternatively, the control module is central processor CPU or micro-control unit MCU.

Correspondingly, the utility model embodiment additionally provides a kind of wireless charging system, including the utility model embodiment Described in wireless power adapter and terminal device.

The utility model has the beneficial effect that：

The utility model embodiment provides a kind of wireless power adapter and wireless charging system, suitable for including wireless The charging system of power supply adaptor and terminal device, the terminal device include filling comprising one or more parallel connection Electric branch road, each charging paths include the charge pump charging submodule of one or more series connection；The radio source is fitted Orchestration includes power conversion modules, control module, wireless communication module and electric energy transmitter module, wherein：The power conversion Module, for receiving the alternating current of civil power input, and give the alternating current transmission to the electric energy transmitter module；The electric energy hair Module is penetrated, for when terminal device and wireless power adapter are in effective chargeable range, the alternating current to be launched To the electric energy receiving module in the terminal device；The wireless communication module, for receive the terminal device pass through it is wireless The charge control information that communication mode is sent, and the charge control information is sent to the control module；The control mould Block, for according to the charge control information, the alternating current that the power conversion modules export being adjusted, to cause the alternating current It disclosure satisfy that the loss demand in the charge requirement and wireless charging circuit of the battery to be charged in the terminal device.Compare In prior art, in the utility model embodiment, the wireless power adapter is sending electric energy to corresponding terminal device On the basis of, the function with corresponding terminal device progress radio communication is also equipped with, so that can not only be according to terminal device Actual demand adjusts the output electric energy of itself, moreover it is possible in terminal equipment failure or wireless charging circuit failure, in time simultaneously Respond exactly, improve the charge efficiency and charging security of wireless charging.

Brief description of the drawings

, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model The accompanying drawing to be used is briefly introduced, it should be apparent that, drawings in the following description are only some implementations of the present utility model Example, on the premise of not paying creative work, can also be according to these accompanying drawings for one of ordinary skill in the art Obtain other accompanying drawings.

Fig. 1 show the structural representation of the first wireless power adapter provided in the utility model embodiment one；

Fig. 2 show the structural representation of the charge pump charging module provided in the utility model embodiment one；

Fig. 3 show the first possible circuit of the charge pump charging submodule provided in the utility model embodiment one Structural representation；

Fig. 4 show second of possible circuit of the charge pump charging submodule provided in the utility model embodiment one Structural representation；

Fig. 5 show the structural representation of the first wireless communication module provided in the utility model embodiment one；

Fig. 6 show the structural representation of second of the wireless communication module provided in the utility model embodiment one；

Fig. 7 show the concrete structure schematic diagram of the power conversion modules provided in the utility model embodiment one；

Fig. 8 show the structural representation of second of the wireless power adapter provided in the utility model embodiment one；

Fig. 9 show the structural representation of the third wireless power adapter provided in the utility model embodiment one；

Figure 10 show the internal structure schematic diagram of the wireless power adapter provided in the utility model embodiment one；

Figure 11 show the structural representation of the wireless charging system provided in the utility model embodiment one；

Figure 12 show the schematic flow sheet of the wireless charging method provided in the utility model embodiment one.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with accompanying drawing to this practicality It is new to be described in further detail, it is clear that described embodiment is only the utility model part of the embodiment, rather than Whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work Under the premise of all other embodiment for being obtained, belong to the scope of the utility model protection.

Embodiment one：

In order to solve, charge efficiency present in existing wireless power adapter is relatively low and charging security is relatively low asks Topic, the utility model embodiment one provides a kind of wireless power adapter, as shown in figure 1, it is the utility model embodiment Described in the first wireless power adapter structural representation.Specifically, as shown in Figure 1, in the utility model embodiment The first described wireless power adapter is applied to the charging system for including wireless power adapter and terminal device, described Terminal device is included comprising one or more charging paths in parallel, each charging paths include one or two with The charge pump charging submodule of upper series connection；The wireless power adapter may include power conversion modules 11, control module 12, nothing Line communication module 13 and electric energy transmitter module 14, wherein：

The input of the power conversion modules 11 electrically connects with civil power, and output end is defeated with the electric energy transmitter module 14 Entering end electrical connection, control terminal electrically connects with the output end of the control module 12, available for the alternating current for receiving civil power input, and Give the alternating current transmission to the electric energy transmitter module 14；

The input of the output end of the electric energy transmitter module 14 and the electric energy receiving module of terminal device is of coupled connections, can For when terminal device and wireless power adapter are in effective chargeable range, the alternating current to be transmitted into the end Electric energy receiving module in end equipment；

The output end signal connection of wireless communication module in the input and terminal device of the wireless communication module 13, Output end electrically connects with the input of the control module 12, is sent out available for the terminal device is received by communication The charge control information sent, and the charge control information is sent to the control module 12；

The control module 12, available for according to the charge control information, adjust the power conversion modules 11 and export Alternating current, to cause the alternating current to disclosure satisfy that the charge requirement of the battery to be charged in the terminal device and wireless Loss demand in charging circuit.

That is, in the utility model and embodiment, the wireless power adapter is applicable to include radio The charging system of source adapter and terminal device, the terminal device are included comprising one or more charging in parallel Branch road, each charging paths include the charge pump charging submodule of one or more series connection；The radio source adaptation Device includes power conversion modules, control module, wireless communication module and electric energy transmitter module, wherein：The power conversion mould Block, for receiving the alternating current of civil power input, and give the alternating current transmission to the electric energy transmitter module；The electric energy transmitting Module, for when terminal device and wireless power adapter are in effective chargeable range, the alternating current to be transmitted to Electric energy receiving module in the terminal device；The wireless communication module, pass through channel radio for receiving the terminal device The charge control information that letter mode is sent, and the charge control information is sent to the control module；The control module, For according to the charge control information, the alternating current that the power conversion modules export being adjusted, to cause the AC energy Enough meet the loss demand in the charge requirement and wireless charging circuit of the battery to be charged in the terminal device.Compared to Prior art, in the utility model embodiment, the wireless power adapter is sending electric energy to corresponding terminal device On the basis of, the function with corresponding terminal device progress radio communication is also equipped with, so that can not only be according to the reality of terminal device Border demand adjusts the output electric energy of itself, moreover it is possible in time and accurate in terminal equipment failure or wireless charging circuit failure Really respond, improve the charge efficiency and charging security of wireless charging.

It should be noted that as shown in Fig. 2 it is the charge pump in the terminal device described in the utility model embodiment The structural representation of charging module.Specifically, as shown in Figure 2, the charge pump charging module may include N number of charging branch in parallel Road, M charge pump charging submodule is may include in each charging paths, wherein, N, M are positive integer, and, N, M can it is identical or Person is different.

Wherein, as shown in figure 3, it can for the first of the charge pump charging submodule described in the utility model embodiment The electrical block diagram of energy.Specifically, from the figure 3, it may be seen that in the utility model embodiment, the charge pump charging submodule May actually be charge pump charging circuit of the prior art, i.e., including first switch Q1, second switch Q2, the 3rd switch Q3, 4th switch Q4, the first electric capacity C1 and the second electric capacity C2 Charge Pump Converter circuits, its circuit structure is with showing Have consistent in technology, here is omitted.

It should be noted that charge pump charging submodule in (in 11~NM as shown in Figure 2 any one) The control terminal of each switching device can be electrically connected with corresponding controller or driver, in the controller or drive Conducting or shut-off under the control of dynamic device.For example, receiving the first drive signal of controller or the driver transmission When, the first switch Q1 and second switch Q2 in the charge pump charging submodule are turned on, closes charge pump charging The 3rd switch Q3 and the 4th switch Q4 in module；Receiving the second driving letter of controller or the driver transmission Number when, turn on the 3rd switch Q3 and Q4 in charge pump charging submodule, close in the charge pump charging submodule First switch Q1 and second switch Q2.

Wherein, the controller or driver can be not only software program, can be also corresponding hardware unit, as long as energy It is enough to send corresponding drive signal to the charge pump transform subblock according to actual conditions, for example, a signal week The first half cycle of phase sends first drive signal, and second drive signal is sent in the later half cycle of a signal period Deng；First drive signal and the second drive signal can flexibly be set according to actual conditions, such as can be program code, numeral Signal or level signal etc., as long as disclosure satisfy that actual demand, this is not repeated.

In addition, as shown in figure 4, its be the utility model embodiment described in charge pump charge submodule second in can The electrical block diagram of energy.Specifically, as shown in Figure 4, the 3rd electric capacity C3 is may also include in the charge pump charging submodule, With in the first switch Q1 and second switch Q2 conductings, the 3rd switch Q3 and the 4th switch Q4 shut-offs When, the late-class circuit for the submodule that charged to the charge pump, such as rear class charge pump charging submodule, battery to be charged, carry out Current compensation, this is not repeated.

It should be noted that the electric energy transmitter module 14 generally can be corresponding electric energy transmitting coil, the electric energy hair Ray circle can be the arbitrary shapes such as rectangle, circle or triangle, as long as line can be received with the electric energy in the terminal device Circle matches, and electromagnetic induction occurs therewith.Wherein, the line of the electric energy transmitting coil and the electric energy receiving coil Loop diameter, line warp, material can flexibly be set according to actual conditions, such as may be configured as 100mm (millimeter), 0.5mm (millimeter), paint Copper-clad line etc., this is not repeated.

Specifically, as shown in figure 5, it is the knot of the first wireless communication module 13 described in the utility model embodiment Structure schematic diagram.Specifically, as shown in Figure 5, the first described wireless communication module 13 may include bluetooth communication 131, purple honeybee Communication module 132, (Near Field Communication, near-field communication) communication module 133 or infrared communication module 134。

It should be noted that as shown in fig. 6, it is second of wireless communication module described in the utility model embodiment 13 structural representation.Specifically, from the figure 3, it may be seen that second of wireless communication module 13, above-mentioned each logical except may include Outside one or more in letter module, other wireless communication modules are may also include, such as may include WiFi (WIreless FIdelity, Wireless Fidelity) communication module 135 etc., if can realize and terminal device in wireless communication module between It is in communication with each other, the utility model embodiment is not limited in any way to this.

Further, the wireless communication module 13, it may also be used for receive the wireless communication module in the terminal device The voltage of the direct current of rectification module output in the send, terminal device, and by the rectification mould in the terminal device The voltage of the direct current of block output is sent to the control module 12；

The control module 12, it may also be used for the electricity of the direct current exported according to the rectification module in the terminal device Pressure, the alternating current that the power conversion modules 11 export is adjusted, to determine the end by the control module in the terminal device End equipment is in effective chargeable range with the wireless power adapter.

Specifically, the control module 12, it is particularly used in if it is determined that what the rectification module in the terminal device exported The voltage of direct current then increases the alternating current that the power conversion modules 11 export no more than the minimum voltage threshold of setting；If Determine that the voltage of the direct current of the rectification module output in the terminal device not less than the maximum voltage threshold of setting, then reduces The alternating current that the power conversion modules 11 export.

Wherein, the minimum voltage threshold and the maximum voltage threshold can flexibly be set according to actual conditions, It such as may be configured as 7V and 13V.It should be noted that now, the control in the control module 12 or the terminal device Molding block can prompt user to set corresponding terminal by corresponding interface display information, such as warning light flicker, prompting message Standby or wireless adapter carries out the movement of position so that the wireless adapter is in effectively charging model with the terminal device In enclosing, so as to lift the stability of charging, high efficiency and security.

It should be noted that the control module 12, increases the power specifically for the first stepping according to setting and becomes Change the mold the alternating current that block 11 exports；Or according to setting the second stepping reduce the power conversion modules 11 output friendship Stream electricity.Wherein, first stepping and second stepping can flexibly be set according to actual conditions, and this is not repeated.

Certainly, it is necessary to illustrate, the control module in the control module 12 or the terminal device, can also pass through Other manner judges whether the wireless power adapter is in effective chargeable range with the terminal device, such as：

Judge whether the spacing between the electric energy transmitter module 14 and the electric energy receiving module of the terminal device is not small In the distance threshold of setting；Or

Judge whether is overlapping area between the electric energy transmitter module 14 and the electric energy receiving module of the terminal device Not less than the area threshold of setting.

Wherein, the distance threshold and the area threshold can flexibly be set according to actual conditions, such as may be configured as 10mm (millimeter), 2cm²(square centimeter) etc., as long as the electric energy end described enough received by electric energy receiving module can be ensured Needed for end equipment, this is not repeated.

Alternatively, the control module 12 generally can be the CPU (Central in the wireless power adapter Processing Unit, central processing unit), MCU (Microcontroller Unit, micro-control unit) etc., or can be another The processing unit being arranged on outside in the wireless power adapter or other processing logics, such as program code, as long as can According to the charge control information, the alternating current that the power conversion modules 11 in the wireless power adapter export is adjusted , this is not repeated.

In addition, it is necessary to explanation, the control module 12 can also be aforementioned controllers or driver, for described Each charge pump charging submodule in charge pump charging module sends drive signal, and this is not repeated.

Specifically, the control module 12, be particularly used in adjust alternating current that the power conversion modules 11 export with So that the direct current of the rectification module output in the terminal device is as shown in following formula 1：

It should be noted that the loss pressure drop of charge pump charging module and circuit described herein generally may include terminal The sum of loss pressure drop caused by charge pump charging module in equipment, the other devices in following stage circuit and wire etc..

Wherein, the loss pressure drop caused by described charge pump charging module, other devices and wire etc. can gather respectively, Also can integrally gather.

When needing to gather respectively, can be acquired by following manner：

The first, in real time collection.By taking charge pump charging module as an example, the charge pump charging module both ends are gathered in real time Voltage；Or regard the internal resistance of the charge pump charging module as fixed value, and the charge pump charging mould is flowed through in collection in real time The electric current of block, afterwards, the voltage at the charge pump charging module both ends is calculated according to Ohm's law；

Secondth, gathered every setting time (flexibly being set according to actual conditions).Still by taking charge pump charging module as an example, The voltage at the charge pump charging module both ends is gathered every setting time；Or the internal resistance by the charge pump charging module Regard fixed value as, and the electric current of the charge pump charging module is flowed through every setting time collection, afterwards, according to Ohm's law meter Calculate the voltage at the charge pump charging module both ends.

It should be noted that in the scene higher to required precision, can the real-time acquisition mode of prioritizing selection, to precision It is required that in less high scene, can prioritizing selection every the acquisition mode of setting time, circuit internal resistance is not with changes such as temperature In scene, or in the complex scene of the more convenient current acquisition of voltage acquisition, can prioritizing selection directly obtain electric current, And the mode of voltage is determined based on fixed internal resistance；In labile scene is held in circuit internal resistance, or voltage acquisition compared with For in the relatively simple scene of complicated current acquisition, can prioritizing selection directly obtain the mode of voltage.

When needing overall collection, can be acquired by following manner：

The first, in real time collection.The input of the charge pump charging module is gathered in real time to the input of battery to be charged Voltage between end；Or by equivalent electric between the input of the input of the charge pump charging module to battery to be charged Fixed value is regarded in resistance as, and collection flows into the charging current of the battery to be charged in real time, afterwards, can calculate institute according to Ohm's law The input of charge pump charging module is stated to voltage between the input of battery to be charged；

Secondth, gathered every setting time (flexibly being set according to actual conditions).The electricity is gathered every setting time The input of lotus pump charging module is to the voltage between the input of battery to be charged；Or by the charge pump charging module Input regard fixed value as to equivalent resistance between the input of battery to be charged, and described in flowing into every setting time collection The charging current of battery to be charged, afterwards, the input of the charge pump charging module can be calculated according to Ohm's law to waiting to fill Voltage between the input of battery.

That is, when carrying out the charging of battery to be charged, also need to consider the loss pressure drop occurred in circuit, and need Corresponding compensating operation is carried out to loss pressure drop, such as by the alternating current of adjustment wireless power adapter output, described in adjustment The direct current of sorting module output in terminal device, to be compensated to the charging voltage being input in battery to be charged.When So, it is necessary to illustrate, except the charging of battery to be charged can be compensated by adjusting the output of the wireless power adapter Outside voltage, it can also be compensated by the external power supply set in addition, caused the voltage that external power supply exports for as described in Loss pressure drop of charge pump charging module and circuit etc., is not repeated this.

Alternatively, as shown in fig. 7, it is the concrete structure of the power conversion modules 11 described in the utility model embodiment Schematic diagram.Specifically, as shown in Figure 7, the power conversion modules 11 include rectifier 111, AC-DC controllers 112, derailing switch Part 113, transformer 114, inverter 115 and optocoupler 116, wherein：

The input of the rectifier 111 electrically connects with civil power, and output end and the input of the transformer 114 are electrically connected Connect, available for the alternating current of reception civil power input, and the alternating current is converted into DC power transmission to the transformer 114；

The output end of the transformer 114 electrically connects with the input of the inverter 115, control terminal and the derailing switch The output end electrical connection of part 113, available for receiving the direct current, and the direct current is sent to the inverter 115；

The output end of the inverter 115 electrically connects with the electric energy transmitter module 14, turns available for by the direct current High-frequency alternating current is changed to, and the high-frequency alternating current is sent to the electric energy transmitter module 14；

The input of the optocoupler 116 electrically connects with the control module 12, output end and the AC-DC controllers 112 input electrical connection, available under the control of the control module 12, generating corresponding feedback signal, and will described in Feedback signal is sent to the AC-DC controllers 112；

The output end of the AC-DC controllers 114 electrically connects with the input of the switching device 113, available for basis The feedback signal, control the conducting dutycycle of the switching device 113；

The switching device 113, for carrying out switch motion according to the conducting dutycycle, adjust the transformer 114 Working condition, to change the direct current that the transformer 114 exports.

Alternatively, the rectifier 111 generally may include corresponding rectifier circuit, such as can be halfwave rectifier bridge circuit, Full wave bridge rectifier circuit or bridge rectifier bridge circuit etc..Wherein, the halfwave rectifier bridge circuit, full wave bridge rectifier circuit and Bridge rectifier bridge circuit can be made up of devices such as corresponding diode or IGCTs.Certainly, higher is being required to conversion efficiency Scene in, the device in the rectifier 111 can use metal-oxide-semiconductor.

It should be noted that the rectifier circuit in the rectifier 111 can be also integrated in addition to it can voluntarily build In corresponding logic chip, the utility model embodiment is not limited in any way to this.

Specifically, the primary side winding of the transformer and the turn ratio of the rich ancestral of secondary can flexibly be set according to actual conditions, It such as may be configured as 1:1,2:1, X：Y (wherein, X, Y can be positive integer, and X, Y may be configured as it is identical or different) etc., as long as energy Enough meet the needs of actual, this is not limited in any way.

Preferably, the switching device 113 can be transistor.

Alternatively, the transistor may include triode or FET.

If it should be noted that the switching device is triode, the control terminal of the switching device can be three poles The base stage of pipe, the input of the switching device can be the colelctor electrode (or emitter stage) of triode, the switching device it is defeated Go out the emitter stage (or colelctor electrode) that end can be triode；If the switching device is FET, the switching device Control terminal can be the grid of FET, and the input of the switching device can be the drain electrode (or source electrode) of FET, The output end of the switching device can be the source electrode (or drain electrode) of FET.Certainly, the input of the switching device and Output end can also be intercoursed, and the utility model embodiment is not limited in any way to this.

Still optionally further, the triode may include NPN type triode, PNP type triode, and the FET can wrap N-channel type FET and P-channel type FET etc. are included, the utility model embodiment is not also limited in any way to this.

In addition, it is necessary to explanation, the switching device be able to can also be realized open in addition to it can be transistor to be any The hardware switch of function is closed, such as can be single-pole double-throw switch (SPDT), double-point double-throw switch, the utility model embodiment is not appointed to this What is limited.

Further, as shown in figure 8, it is second of wireless power adapter described in the utility model embodiment Structural representation.Specifically, as shown in Figure 8, second of wireless power adapter may also include protection module 15, wherein：

The input of the protection module 15 electrically connects with the output end of the power conversion modules 11, output end with it is described The input electrical connection of electric energy transmitter module 14, available for the wireless power adapter real-time working parameter exceed it is default During threshold value, abnormal work protection is carried out to the wireless power adapter.

Specifically, the protection module 15 generally can be protection switch, and the protection switch can be with foregoing switching device 113 is identical or different；The protection module 15 may be generally disposed between the transformer 114 and the inverter 115, in institute When stating wireless power adapter and breaking down, the path between the transformer 114 and the inverter 115 is disconnected, so as to right The wireless power adapter and corresponding terminal device are protected, and this is not repeated.

Alternatively, the real-time working parameter of the wireless power adapter exceedes predetermined threshold value, it may include：

The temperature of the wireless power adapter is higher than design temperature threshold value；Or

The voltage of the wireless power adapter is higher than setting overvoltage threshold；Or

The voltage of the wireless power adapter is less than setting brownout threshold；Or

The electric current of the wireless power adapter is higher than setting excessively stream threshold value.

Wherein, the voltage of the wireless power adapter includes input voltage and output voltage, and the radio source is fitted The electric current input current and output current of orchestration, are not repeated this.

It should be noted that the temperature threshold.Overvoltage threshold, brownout threshold and current threshold can be according to actual feelings Condition is flexibly set, as long as can ensure the charging safety of wireless power adapter, this is not repeated.

In addition, it is necessary to explanation, the real-time working parameter of the wireless power adapter exceed predetermined threshold value, can also wrapped The humidity of the wireless power adapter is included higher than humidity threshold etc., as long as the normal work of the wireless power adapter can be limited Including the factor of work may each comprise, this is not limited in any way.

Further, as shown in figure 9, it is the third wireless power adapter described in the utility model embodiment Structural representation.Specifically, as shown in Figure 9, the third described wireless power adapter may also include Anneta module 16：

The Anneta module 16, the charge control information sent available for the Anneta module for receiving the terminal device, and The charge control information is sent to the wireless communication module 13；Or receive the Anneta module hair of the terminal device The second indication information sent, and second indication information is sent to the wireless communication module 13；Or to the terminal The Anneta module of equipment sends first indication information；

The wireless communication module 13, it may also be used for the charge control information is sent to the control module 12, with So that the control module 12 adjusts the alternating current that the power conversion modules 11 export；Or by second indication information Send to the control module 12, to cause the control module according to second indication information and the first indication information, Judge whether the wireless power adapter is in effective chargeable range with the terminal device.

It should be noted that the Anneta module 16 generally may include built-in aerial and/or external antenna, and, it can pass through The mode that the positions such as rear shell, side in the terminal device carry out perforate is set, and this is not repeated.

Below, the specific internal structure of the wireless power adapter described in the utility model embodiment is carried out specifically It is bright：

Specifically, as shown in Figure 10, it is the 4th kind of wireless power adapter described in the utility model embodiment Internal structure schematic diagram.Specifically, as shown in Figure 10, on the one hand, civil power, can be by isolating inverse-excitation type electricity after rectifier Buckling parallel operation Tr, is output to inverter；Inverter can switch to direct current in alternating current, and be loaded into electric energy transmitting after improving frequency On coil, wherein, isolate between inverse-excitation type voltage changer Tr and inverter and be provided with protection switch U1, in abnormality When, disconnect output.On the other hand, Anneta module receives the charge control information of terminal device transmission, and charge control is believed Breath is sent to wireless communication module；Wireless communication module sends charge control information to control module；Control module passes through tune Whole optocoupler G input so that optocoupler G output changes；AC-DC controllers are according to the optocoupler G's Output, adjustment switching device U3 conducting dutycycle, and then adjust isolation inverse-excitation type voltage changer Tr output.

The Action Specification of wherein main devices is as follows：

Electric capacity C11 is connected in parallel in two output ends of rectifier, for the alternating current after rectifier rectification to be converted into directly Stream；Electric capacity C12 is connected in parallel on two ports of the AC-DC controllers so that the power supply of AC-DC controllers is more stable；Resistance R12 concatenations are used as current sense resistor in the loop；Resistance R13 and resistance R14 partial pressures detect for output voltage；Resistance R15 It is voltage detection resistances；Resistance R11 and electric capacity C13 and diode D1 and D2 composition absorbing circuit；U2 is used to isolate inverse-excitation type electricity Buckling parallel operation Tr secondary commutations.

It should be noted that under some scenes, the wireless power adapter shown in Figure 10 can also be split into several portions Divide the design for going to complete power supply adaptor end indirectly, such as a set of voltage dropping power supply system, a set of communication, inversion and line can be done respectively Circle system, this is not repeated.

Similarly, the utility model embodiment additionally provides a kind of wireless mobile power supply, and its internal structure is new with this practicality Wireless power adapter described in type embodiment is similar, and only need to be replaced into direct current in the rectifier in power conversion modules 11 becomes Parallel operation, such as BOOST, and battery is connected in the input of DC converter, the utility model embodiment is not repeated this.

Correspondingly, the utility model embodiment additionally provides a kind of wireless charging system, and as shown in figure 11, it is this practicality The structural representation of wireless charging system described in new embodiment.Specifically, as shown in Figure 11, the wireless charging system It may include the wireless power adapter 1101 and terminal device 1102 described in the utility model embodiment.

Wherein, the radio source adaptation 1101, charges available for the terminal device 1102.

The utility model embodiment one provides a kind of wireless power adapter, wireless mobile power supply and wireless charging system System, the wireless power adapter are applicable to the charging system for including wireless power adapter and terminal device, the end End equipment includes including one or more comprising one or more charging paths in parallel, each charging paths The charge pump charging submodule of series connection；The wireless power adapter includes power conversion modules, control module, radio communication mold Block and electric energy transmitter module, wherein：The power conversion modules, for receiving the alternating current of civil power input, and by the friendship The electric energy transmitter module is defeated by stream fax；The electric energy transmitter module, at terminal device and wireless power adapter When in effective chargeable range, the electric energy receiving module that the alternating current is transmitted in the terminal device；It is described wireless Communication module, the charge control information sent for receiving the terminal device by communication, and by the charging Control information is sent to the control module；The control module, for according to the charge control information, adjusting the power The alternating current of conversion module output, to cause the alternating current to disclosure satisfy that the charging of the battery to be charged in the terminal device Loss demand in demand and wireless charging circuit.It is described wireless in the utility model embodiment compared to prior art Power supply adaptor is also equipped with carrying out channel radio with corresponding terminal device on the basis of electric energy is sent to corresponding terminal device The function of letter, so as to which the output electric energy of itself can not only be adjusted according to the actual demand of terminal device, moreover it is possible to set in terminal When standby failure or wireless charging circuit failure, timely and accurately respond, improve wireless charging charge efficiency and Charging security.

Embodiment two：

Based on conceiving with the identical utility model of the utility model embodiment one, the utility model embodiment two provides one Kind wireless charging method, as shown in figure 12, it is that the flow of the wireless charging method provided in the utility model embodiment one is shown It is intended to.Identical content can be found in the related content in the utility model embodiment one, not make in the utility model embodiment excessive Repeat.Specifically, as shown in Figure 12, the wireless charging method is applicable to include wireless power adapter and terminal device Wireless charging system, may include to include one or more charging paths in parallel in the terminal device, each fills Electric branch road may include the charge pump charging submodule of one or more series connection；The wireless charging method may include：

Step 1201：Receive the alternating current of civil power input；

Step 1202：Receive the charge control information that the terminal device is sent by communication；

Step 1203：According to the charge control information, the alternating current is adjusted, to cause the alternating current disclosure satisfy that Loss demand in the charge requirement and wireless charging circuit of battery to be charged in the terminal device；

Step 1204：The electric energy that alternating current after adjustment is sent to terminal device by electric energy transmitter module receives mould Block.

Wherein, the executive agent of the step 1201 can be the power conversion modules in wireless power adapter, such as power Converter；The executive agent of the step 1202 can be the wireless communication module in wireless power adapter, such as Bluetooth communication mould Block, infrared communication module, WiFi communication module etc.；The executive agent of the step 1203 can be the control in wireless power adapter Molding block such as controller, CPU, MCU etc.；The executive agent of the step 1204 can be the electric energy transmitting in wireless power adapter Module, such as electric energy transmitting coil,

That is, in the utility model embodiment, the alternating current of civil power input can be received；And the terminal can be received The charge control information that equipment is sent by communication；Afterwards, the friendship can be adjusted according to the charge control information Stream electricity, to cause the alternating current to disclosure satisfy that the charge requirement and wireless charging of the battery to be charged in the terminal device Loss demand in circuit；Finally, the alternating current after adjustment can be sent to the electric energy of terminal device by electric energy transmitter module Receiving module.Compared to prior art, in the utility model embodiment, the wireless power adapter is to corresponding terminal On the basis of equipment sends electric energy, it is also equipped with carrying out the function of radio communication with corresponding terminal device, so that can not only root The output electric energy of itself is adjusted according to the actual demand of terminal device, moreover it is possible in terminal equipment failure or wireless charging circuit During failure, timely and accurately respond, improve the charge efficiency and charging security of wireless charging.

Specifically, according to the charge control information, the alternating current is adjusted, to cause the rectification in the terminal device The direct current of module output can be shown in formula 2：

It should be noted that the loss pressure drop of the charge pump charging module and circuit may include the electricity in terminal device Loss pressure drop, is not limited in any way to this caused by lotus pump charging module, the other devices in following stage circuit and circuit.

Further, after the alternating current of civil power input is received, the wireless charging method may also include：

The alternating current is converted into direct current；

The direct current is converted into high-frequency alternating current, and the high-frequency alternating current is sent to the electric energy transmitter module To be sent to the electric energy receiving module of terminal device.

It should be noted that the executive agent that the alternating current is converted to direct current generally can be corresponding rectification Device, it may include corresponding rectifier circuit in the rectifier, as halfwave rectifier bridge circuit, full wave bridge rectifier circuit, bridge-type are whole Flow bridge circuit etc.；It is described that the direct current is converted into high-frequency alternating current, and the high-frequency alternating current is sent to the electric energy Transmitter module generally can be corresponding inverter to be sent to the executive agent of the electric energy receiving module of terminal device.

Further, the wireless charging method may also include：

When the real-time working parameter of the wireless power adapter exceedes predetermined threshold value, to the wireless power adapter Carry out abnormal work protection.

It should be noted that the real-time working parameter may include temperature, voltage or electric current, certainly, may also include wet Degree etc., is not limited in any way to this.

The utility model embodiment two provides a kind of wireless charging method, can receive the alternating current of civil power input；And can Receive the charge control information that the terminal device is sent by communication；Afterwards, can be believed according to the charge control Breath, adjusts the alternating current, and to cause the alternating current disclosure satisfy that, the charging of the battery to be charged in the terminal device needs Ask and wireless charging circuit in loss demand；Finally, the alternating current after adjustment can be sent to by electric energy transmitter module The electric energy receiving module of terminal device.Compared to prior art, in the utility model embodiment, the wireless power adapter On the basis of electric energy is sent to corresponding terminal device, it is also equipped with carrying out the function of radio communication with corresponding terminal device, So that the output electric energy of itself can not only be adjusted according to the actual demand of terminal device, moreover it is possible in terminal equipment failure or During person's wireless charging circuit failure, timely and accurately respond, improve the charge efficiency and charging safety of wireless charging Property.

Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claims and Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these changes and modification.

Claims

1. a kind of wireless power adapter, it is characterised in that suitable for filling including wireless power adapter and terminal device Electric system, the terminal device include including comprising one or more charging paths in parallel, each charging paths The charge pump charging submodule of one or more series connection；The wireless power adapter includes power conversion modules, control Module, wireless communication module and electric energy transmitter module, wherein：

The input of the power conversion modules electrically connects with civil power, and output end and the input of the electric energy transmitter module are electrically connected Connect, control terminal electrically connects with the output end of the control module, for receiving the alternating current of civil power input, and by the alternating current It is transferred to the electric energy transmitter module；

The input of the output end of the electric energy transmitter module and the electric energy receiving module of terminal device is of coupled connections, at end When end equipment is in effective chargeable range with wireless power adapter, the alternating current is transmitted in the terminal device Electric energy receiving module；

The output end signal connection of wireless communication module in the input and terminal device of the wireless communication module, output end Electrically connected with the input of the control module, the charging control sent for receiving the terminal device by communication Information processed, and the charge control information is sent to the control module；

The control module, for according to the charge control information, adjusting the alternating current of the power conversion modules output, with So that the alternating current disclosure satisfy that in the charge requirement and wireless charging circuit of the battery to be charged in the terminal device Loss demand.

2. wireless power adapter as claimed in claim 1, it is characterised in that

The control module, specifically for the alternating current exported by adjusting the power conversion modules, to cause the terminal In equipment rectification module output direct current be：

Wherein, the U_{a_out}Represent the voltage of the direct current of the rectification module output；The I_{a_out}Represent the rectification module The electric current of the direct current of output；The M is positive integer, represents the charge pump charging submodule connected in each charging paths Number；The U_{c_out}Represent the charging voltage of the battery to be charged；The U_lRepresent the charge pump charging module and The loss pressure drop of circuit；The I_{c_out}Represent the charging current of the battery to be charged.

3. wireless power adapter as claimed in claim 2, it is characterised in that the power conversion modules include rectifier, AC-DC controllers, switching device, transformer, inverter and optocoupler, wherein：

The input of the rectifier electrically connects with civil power, and output end electrically connects with the input of the transformer, for receiving The alternating current of civil power input, and the alternating current is converted into DC power transmission to the transformer；

The output end of the transformer electrically connects with the input of the inverter, control terminal and the output end of the switching device Electrical connection, sends to the inverter for receiving the direct current, and by the direct current；

The output end of the inverter electrically connects with the electric energy transmitter module, for the direct current to be converted into high-frequency ac Electricity, and the high-frequency alternating current is sent to the electric energy transmitter module；

The input of the optocoupler electrically connects with the control module, output end and the input of the AC-DC controllers Electrical connection, sends to institute under the control of the control module, generating corresponding feedback signal, and by the feedback signal State AC-DC controllers；

The switching device, for carrying out switch motion according to the conducting dutycycle, the working condition of the transformer is adjusted, To change the direct current of the transformer output.

4. wireless power adapter as claimed in claim 1, it is characterised in that the wireless power adapter also includes protection Module, wherein：

The input of the protection module is electrically connected with the output end of the power conversion modules, and output end is launched with the electric energy The input electrical connection of module, for when the real-time working parameter of the wireless power adapter exceedes predetermined threshold value, to institute State wireless power adapter and carry out abnormal work protection.

5. wireless power adapter as claimed in claim 1, it is characterised in that the wireless communication module includes Bluetooth communication Module, closely purple honeybee communication module, NFC communication module or infrared communication module.

6. wireless power adapter as claimed in claim 1, it is characterised in that

The wireless communication module, it is additionally operable to receive terminal that the wireless communication module in the terminal device is sent, described and sets The voltage for the direct current that standby interior rectification module exports, and the electricity for the direct current that the rectification module in the terminal device is exported The control module is delivered in pressure；

The control module, the voltage of direct current exported according to the rectification module in the terminal device is additionally operable to, adjusts institute State power conversion modules output alternating current, with by the control module in the terminal device determine the terminal device with it is described Wireless power adapter is in effective chargeable range.

7. wireless power adapter as claimed in claim 6, it is characterised in that

The control module, specifically for if it is determined that the voltage for the direct current that the rectification module in the terminal device exports is little In the minimum voltage threshold of setting, then increase the alternating current that the power conversion modules export；If it is determined that in the terminal device Rectification module output direct current voltage not less than setting maximum voltage threshold, then it is defeated to reduce the power conversion modules The alternating current gone out.

8. wireless power adapter as claimed in claim 1, it is characterised in that

The electric energy transmitter module, specifically for being sent out the alternating current by electric induction, magnetic induction, magnetic resonance or electromagnetic wave Give the electric energy receiving module in the terminal device.

9. wireless power adapter as claimed in claim 1, it is characterised in that the control module be central processor CPU, Micro-control unit MCU.

10. a kind of wireless charging system, it is characterised in that including the wireless power adapter described in any one of claim 1~9 And terminal device.