CN104065145B - Wireless charging device and its charging method - Google Patents
Wireless charging device and its charging method Download PDFInfo
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- CN104065145B CN104065145B CN201310089626.XA CN201310089626A CN104065145B CN 104065145 B CN104065145 B CN 104065145B CN 201310089626 A CN201310089626 A CN 201310089626A CN 104065145 B CN104065145 B CN 104065145B
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Abstract
A kind of method to be charged using wireless charging device, the wireless charging device are connect with wireless charging energy emitting device and electronic device, and this method includes：The radio frequency transmitted by the RF energy converting unit reception wireless charging energy emitting device in wireless charging device, and generate alternating current；The alternating current transmitted by the voltage conversion unit reception RF energy converting unit in wireless charging device, and direct current is converted thereof into, so as to be charged with direct current to electronic device.The present invention also provides a kind of wireless charging devices.The electronic equipment for being unable to wireless charging can be enabled to realize wireless charging using the present invention, facilitate user.
Description
Technical field
The present invention relates to a kind of wireless charging device and its charging methods.
Background technology
Electronic device currently on the market（For example, the devices such as mobile phone, digital camera, MP3 player）It is most of all to make
With the mode of cable（USB line charger）It charges, if user uses more electronic devices, and charge electronic devices specification is not
Together, then it must retain various types of cable chargers, thus cause the frustration of user, if wherein charging for example, losing
Device then needs to buy the charger again to charge to corresponding electronic device.
Invention content
In view of the foregoing, it is necessary to a kind of wireless charging device be provided, the electronics for being unable to wireless charging can be caused to set
It is standby to realize wireless charging, facilitate user.
In view of the foregoing, it there is a need to and a kind of method to be charged using wireless charging device be provided, can cause
Wireless charging can be realized by being unable to the electronic equipment of wireless charging, facilitate user.
A kind of wireless charging device, the wireless charging device are connect with wireless charging energy emitting device and electronic device,
The wireless charging device includes：RF energy converting unit is penetrated for receive that wireless charging energy emitting device transmits
Frequently, and alternating current is generated；Voltage conversion unit, for receiving the alternating current that RF energy converting unit transmits, and by its
Direct current is converted into, so as to charge with direct current to electronic device.
A kind of method to be charged using wireless charging device, the wireless charging device are filled with wireless charging energy transmitting
It puts and electronic device connection, this method includes：Wireless charging is received by the RF energy converting unit in wireless charging device
The radio frequency that energy emitting device transmits, and generate alternating current；It is received by the voltage conversion unit in wireless charging device
The alternating current that RF energy converting unit transmits, and convert thereof into direct current, so as to direct current to electronic device into
Row charging.
Compared to the prior art, using the wireless charging device and its charging method, can be unable to wireless charging
The electronic equipment of electricity can realize wireless charging, facilitate user.
Description of the drawings
Fig. 1 is the applied environment figure of wireless charging device preferred embodiment of the present invention.
Fig. 2 is a kind of internal structure chart of wireless charging device in Fig. 1 of the present invention.
Fig. 3 is the flow chart of method preferred embodiment that the present invention is charged using the wireless charging device in Fig. 2.
Fig. 4 is another internal structure chart of wireless charging device in Fig. 1 of the present invention.
Fig. 5 is the flow chart of method preferred embodiment that the present invention is charged using the wireless charging device in Fig. 4.
Main element symbol description
| Wireless charging energy emitting device | 1 |
| Wireless charging device | 2 |
| Electronic device | 3 |
| RF energy converting unit | 20 |
| Voltage conversion unit | 22 |
| Power change-over switch | 24 |
| Voltage sensor | 26 |
| First switch | 240 |
| Second switch | 242 |
| Interface | 28 |
| Wired charger | 4 |
Following specific embodiment will be further illustrated the present invention with reference to above-mentioned attached drawing.
Specific embodiment
As shown in Figure 1, it is the applied environment figure of wireless charging device preferred embodiment of the present invention.
The wireless charging device 2 is connect respectively with wireless charging energy emitting device 1 and electronic device 3, wherein wireless charging
Electric installation 2 and wireless charging energy emitting device 1 carry out wireless connection, and wireless charging device 2 carried out with electronic device 3 it is wired
Connection.The electronic device 3 may be, but not limited to, the devices such as mobile phone, digital camera and tablet computer.The wireless charging
Device 2 can be directly attached on electronic device 3, for example, the protective shell that can surround electronic device 3 is made, thus, protect
Electronic device 3 is protected, and there can be wireless charging function.
The wireless charging energy emitting device 1 passes through plug and power grid（For example, 220 volts of household electricity）Connected
It connects, which can generate radio frequency, by generated radio frequency transmission to wireless charging device 2（It will
Wireless charging device 2 is close to wireless charging energy emitting device 1 to obtain radio frequency）So that wireless charging device 2 generates electricity, from
And realize the charging to electronic device 3.
As shown in Fig. 2, it is a kind of internal structure chart of wireless charging device in Fig. 1 of the present invention.
The wireless charging device 2 includes RF energy converting unit 20 and voltage conversion unit 22.Wherein, the radio frequency
Energy conversion unit 20 is connect with the voltage conversion unit 22, and the voltage conversion unit 22 is attached with electronic device 3.
The RF energy converting unit 20 is used to receive the radio frequency that wireless charging energy emitting device 1 transmits, and
Generate alternating current.In this preferred embodiment, the RF energy converting unit 20 includes a coil.In general, electronics fills
Putting 3 needs direct current to charge, and therefore, it is necessary to alternating current caused by RF energy converting unit 20 is converted into direct current
Electricity.The voltage conversion unit 22 receives the alternating current that RF energy converting unit 20 transmits, and converts thereof into direct current
Electricity, so as to be charged with direct current to electronic device 3.In this preferred embodiment, the voltage conversion unit 22 includes one
Motor-generator set.The voltage conversion unit 22 is additionally operable to, when the battery of electronic device 3 is fully charged, stop filling electronic device 3
Electricity.
As shown in figure 3, it is the stream of method preferred embodiment that the present invention is charged using the wireless charging device in Fig. 2
Cheng Tu.
Step S10, RF energy converting unit 20 receive the radio frequency that wireless charging energy emitting device 1 transmits, and
Generate alternating current.In this preferred embodiment, the RF energy converting unit 20 includes a coil, to generate alternating current.
Step S12, voltage conversion unit 22 receive the alternating current that RF energy converting unit 20 transmits, and by its turn
Change direct current into.In addition, the voltage for the direct current converted is identical with the charging voltage of electronic device 3.In this preferred embodiment
In, the voltage conversion unit 22 includes a motor-generator set, and direct current is converted alternating current to realize.
Step S14, voltage conversion unit 22 charge to electronic device 3 by direct current.
Step S16, when the battery of electronic device 3 is fully charged, voltage conversion unit 22 stops filling electronic device 3
Electricity.Specifically, voltage when whether the cell voltage in 22 detection electronic installation 3 of voltage conversion unit is fully charged, if electric
Voltage when cell voltage in sub-device 3 is fully charged, then voltage conversion unit 22 it is single to send instructions to RF energy conversion
Member 20 makes RF energy converting unit 20 stop generating alternating current or send instructions to voltage conversion unit 22, turns voltage
Unit 22 is changed to stop supplying direct current to electronic device 3.
As shown in figure 4, it is another internal structure chart of wireless charging device in Fig. 1 of the present invention.
The wireless charging device 2 includes RF energy converting unit 20, voltage conversion unit 22, power change-over switch
24th, voltage sensor 26 and interface 28.The power change-over switch 24 includes first switch 240 and second switch 242.Wherein,
The RF energy converting unit 20 is connect with the voltage conversion unit 22, and the voltage conversion unit 22 is opened with power supply switching
The first switch 240 of pass 24 connects, voltage sensor 26 and RF energy converting unit 20, power change-over switch 24 and interface 28
Connection, the interface 28 are connect with the second switch 242 and wired charger 4 of power change-over switch 24, power change-over switch 24
First switch 240 and second switch 242 be also attached with electronic device 3, to charge to electronic device 3.
The RF energy converting unit 20 is used to receive the radio frequency that wireless charging energy emitting device 1 transmits, and
Generate alternating current.In this preferred embodiment, the RF energy converting unit 20 is coil.
In general, electronic device 3 needs direct current to charge, therefore, it is necessary to by 20 institute of RF energy converting unit
The alternating current of generation is converted into direct current.The voltage conversion unit 22 receives the friendship that RF energy converting unit 20 transmits
Galvanic electricity, and convert thereof into direct current.In this preferred embodiment, the voltage conversion unit 22 includes a motor-generator set.
When first switch 240 is closed and second switch 242 disconnects, electronic device 3 is carried out by wireless charging device 2
Charging when first switch 240 disconnects and second switch 242 is closed, charges to electronic device 3 by wired charger 4.
Voltage sensor 26 is for detecting whether RF energy converting unit 20 and interface 28 have voltage, if RF energy turns
Changing unit 20 has voltage, shows to charge to electronic device 3 by wireless charging device 2, then voltage sensor
26 send instructions to power change-over switch 24, to be closed first switch 240.If interface 28 has voltage, showing can be by wired
Charger 4 charges to electronic device 3, then voltage sensor 26 sends instructions to power change-over switch 24, to be closed second
Switch 242.It should be noted that if RF energy converting unit 20 and interface 28 have voltage simultaneously, in order to avoid conflicting, usually
A kind of mode therein is selected to charge electronic device.In this preferred embodiment, due to the charging of wireless charging device 2
Efficiency is lower than the efficiency to be charged by wired charger 4 to electronic device 3, therefore, in RF energy converting unit 20 and
In the case that interface 28 has voltage simultaneously, wired charger 4 is selected to charge electronic device 3（I.e. voltage sensor 26 is sent out
Instruction is sent to close first switch 240, and open second switch 242 to power change-over switch 24）.
The power change-over switch 24 is additionally operable to, when the battery of electronic device 3 is fully charged, stop carrying out electronic device 3
Charging.Specifically, when the battery of electronic device 3 is fully charged, first switch 240 and second switch 242 are disconnected, is stopped to electricity
Sub-device 3 supplies direct current.In other embodiments, RF energy converting unit 20 can also be sent instructions to stop generating
Exchange, and stop the charge function of interface 28.
As shown in figure 5, it is the stream of method preferred embodiment that the present invention is charged using the wireless charging device in Fig. 4
Cheng Tu.
Step S20, RF energy converting unit 20 receive the radio frequency that wireless charging energy emitting device 1 transmits, and
Generate alternating current.In this preferred embodiment, the RF energy converting unit 20 includes a coil, to generate alternating current.
Step S21, voltage conversion unit 22 receive the alternating current that RF energy converting unit 20 transmits, and by its turn
Change direct current into.In addition, the voltage for the direct current converted is identical with the charging voltage of electronic device 3.In this preferred embodiment
In, the voltage conversion unit 22 includes a motor-generator set, and direct current is converted alternating current to realize.
Step S22, voltage sensor 26 detect whether the interface 28 being connect with wired charger 4 has voltage.When interface 28
When not having voltage, flow enters step S23.When interface 28 has voltage, flow enters step S24.
Step S23, voltage sensor 26 detect whether RF energy converting unit 20 has voltage.When RF energy converts list
Member 20 has voltage, and flow enters step S25.When RF energy converting unit 20 is without voltage, directly terminate flow.
Step S24, voltage sensor 26 send instructions to power change-over switch 24, are closed second switch 242, and disconnect the
One switch 240, to be charged by wired charger 4 to electronic device 3.
Step S25, voltage sensor 26 send instructions to power change-over switch 24, are closed first switch 240, and disconnect the
Two switches 242, to be charged by wireless charging device 2 to electronic device 3.
Step S26, when the battery of electronic device 3 is fully charged, power change-over switch 24 stops filling electronic device 3
Electricity.Specifically, when the battery of electronic device 3 is fully charged, first switch 240 and second switch 242 are disconnected, is stopped to electronics
Device 3 supplies direct current.In other embodiments, RF energy converting unit 20 can also be sent instructions to stop generating friendship
Stream, and stop the charge function of interface 28.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to more than preferred embodiment pair
The present invention is described in detail, it will be understood by those of ordinary skill in the art that, technical scheme of the present invention can be carried out
Modification or equivalent replacement should not all be detached from the spirit and scope of technical solution of the present invention.
Claims (12)
1. a kind of wireless charging device, which is characterized in that the wireless charging device and wireless charging energy emitting device and electronics
Device connects, which includes：
RF energy converting unit for receiving the radio frequency that wireless charging energy emitting device transmits, and generates alternating current；
And
Voltage conversion unit for receiving the alternating current that RF energy converting unit transmits, and converts thereof into direct current,
So as to be charged with direct current to electronic device；
The wireless charging device further includes power change-over switch, voltage sensor and interface, wherein, the RF energy conversion
Unit is connect with the voltage conversion unit, and the voltage conversion unit is connect with power change-over switch, voltage sensor and institute
State RF energy converting unit, the power change-over switch and interface connection, the interface and the power change-over switch
And wired charger connection, the power change-over switch are also attached with the electronic device；
The power change-over switch includes first switch and second switch, wherein, the first switch and voltage conversion are single
First and described electronic device connection, the second switch are connect with the interface and the electronic device；
Wherein, the voltage sensor sends instructions to the electricity when detecting that the RF energy converting unit has voltage
Source switching switch is closed the first switch, and disconnects the second switch, with by the wireless charging device to the electricity
Sub-device charges；
The voltage sensor sends instructions to the power change-over switch when detecting that the interface has voltage, is closed institute
State second switch, and disconnect the first switch, with by the wired charger to the charge electronic devices.
2. wireless charging device as described in claim 1, which is characterized in that described when the battery of electronic device is fully charged
Voltage conversion unit stopping charges to electronic device.
3. wireless charging device as described in claim 1, which is characterized in that when the battery of the electronic device is fully charged,
The voltage conversion unit sends instructions to the RF energy converting unit, and RF energy converting unit is made to stop generating exchange
Electricity.
4. wireless charging device as described in claim 1, which is characterized in that the RF energy converting unit is coil.
5. wireless charging device as described in claim 1, which is characterized in that the voltage conversion unit includes a motor-generator set.
6. wireless charging device as described in claim 1, which is characterized in that when the battery of the electronic device is fully charged,
The first switch and second switch are disconnected, stops supplying direct current to the electronic device.
7. a kind of method that wireless charging device using in claim 1 charges, which is characterized in that this method includes：
It is penetrated by what the RF energy converting unit reception wireless charging energy emitting device in wireless charging device transmitted
Frequently, and alternating current is generated；
The alternating current transmitted by the voltage conversion unit reception RF energy converting unit in wireless charging device, and will
It is converted into direct current, so as to be charged with direct current to electronic device；
The wireless charging device further includes power change-over switch, voltage sensor and interface, wherein, the RF energy conversion
Unit is connect with the voltage conversion unit, and the voltage conversion unit is connect with power change-over switch, voltage sensor and institute
State RF energy converting unit, the power change-over switch and interface connection, the interface and the power change-over switch
And wired charger connection, the power change-over switch are also attached with the electronic device；
The power change-over switch includes first switch and second switch, wherein, the first switch and voltage conversion are single
First and described electronic device connection, the second switch are connect with the interface and the electronic device；
This method further includes step：
The voltage sensor sends instructions to the power supply switching when detecting that the RF energy converting unit has voltage
Switch, be closed the first switch, and disconnect the second switch, with by the wireless charging device to the electronic device
It charges；And
The voltage sensor sends instructions to the power change-over switch when detecting that the interface has voltage, is closed institute
State second switch, and disconnect the first switch, with by the wired charger to the charge electronic devices.
8. the method as claimed in claim 7 to be charged using wireless charging device, which is characterized in that this method further includes
Step：
When the battery of electronic device is fully charged, charged by voltage conversion unit stopping to electronic device.
9. the method as claimed in claim 7 to be charged using wireless charging device, which is characterized in that when the electronics fills
When the battery put is fully charged, the voltage conversion unit sends instructions to the RF energy converting unit, turns RF energy
Unit is changed to stop generating alternating current.
10. the method as claimed in claim 7 to be charged using wireless charging device, the RF energy converting unit are
Coil.
11. the method as claimed in claim 7 to be charged using wireless charging device, which is characterized in that the voltage turns
It changes unit and includes a motor-generator set.
12. the method as claimed in claim 7 to be charged using wireless charging device, which is characterized in that when the electronics
When the battery of device is fully charged, the first switch and second switch are disconnected, stops supplying direct current to the electronic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089626.XA CN104065145B (en) | 2013-03-20 | 2013-03-20 | Wireless charging device and its charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089626.XA CN104065145B (en) | 2013-03-20 | 2013-03-20 | Wireless charging device and its charging method |
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| CN104065145A CN104065145A (en) | 2014-09-24 |
| CN104065145B true CN104065145B (en) | 2018-06-19 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529754B (en) * | 2014-09-29 | 2019-01-04 | 南京德朔实业有限公司 | A kind of battery pack and its charging method and electric tool using the battery pack |
| CN105529752B (en) * | 2014-09-29 | 2020-01-31 | 南京德朔实业有限公司 | kinds of battery pack and electric tool adopting same |
| CN105529802B (en) * | 2014-09-29 | 2019-01-04 | 南京德朔实业有限公司 | A kind of charging system |
| CN105529801B (en) * | 2014-09-29 | 2020-01-31 | 南京德朔实业有限公司 | Charging system and charging method thereof |
| CN106549445B (en) * | 2016-10-28 | 2020-11-27 | 太仓市昊博技术服务有限公司 | Mobile terminal and charging switching control method |
| CN106532824B (en) * | 2016-11-15 | 2019-11-05 | 努比亚技术有限公司 | Mobile terminal and charging method for handover control |
| US10447068B2 (en) * | 2017-04-03 | 2019-10-15 | Nxp B.V. | Power management circuit |
| CN107294162B (en) * | 2017-07-05 | 2024-04-16 | 深圳传音控股股份有限公司 | Wireless charging device and charging method thereof |
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