CN209046328U - A kind of double-direction radio charge and discharge device - Google Patents
A kind of double-direction radio charge and discharge device Download PDFInfo
- Publication number
- CN209046328U CN209046328U CN201822100299.4U CN201822100299U CN209046328U CN 209046328 U CN209046328 U CN 209046328U CN 201822100299 U CN201822100299 U CN 201822100299U CN 209046328 U CN209046328 U CN 209046328U
- Authority
- CN
- China
- Prior art keywords
- circuit
- power
- lithium battery
- double
- electrically connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to radio transmission technical fields, in particular to a kind of double-direction radio charge and discharge device, including pcb board, lithium battery, receiving coil and transmitting coil, lithium battery, receiving coil and transmitting coil are electrically connected with pcb board, receiving coil and transmitting coil are respectively arranged at the two sides of lithium battery, it include a two-way wireless charging electric discharge road in pcb board, double-direction radio charge-discharge circuit includes power receiving end, power management chip and power emission end, power receiving end and power emission end are electrically connected with power management chip, power receiving end is also wirelessly connected with external charging equipment, power emission end is also wirelessly connected with electronic equipment, power management chip and lithium battery are electrically connected.Compared with prior art, the double-direction radio charge and discharge device of the utility model realizes the charge mode put when filling, and solves the charging problems that can only individually charge or individually discharge, and output power reaches 15W, effectively shortens the charging time.
Description
[technical field]
The utility model relates to radio transmission technical field, in particular to a kind of double-direction radio charge and discharge device.
[background technique]
Wireless charging device refers to the charger being connected on the terminal device for needing to charge without traditional data line, main
Electromagnetic induction principle is used, by the magnetic field generated between coil, energy coupling is carried out and realizes electric energy transmission.
Existing wireless charging device is usually unidirectionally to carry out wireless charging for electronic equipment, and itself need to pass through data line
Charging is completed, data line is easily lost, once losing, then the wireless charging device is unable to complete itself charging.
[utility model content]
In order to overcome the above problem, the utility model proposes the double-direction radio charge and discharge dresses that one kind can effectively solve the above problems
It sets.
The utility model solves a kind of technical solution that above-mentioned technical problem provides: providing a kind of double-direction radio charge and discharge dress
It sets, including pcb board, lithium battery, receiving coil and transmitting coil, the lithium battery, receiving coil and transmitting coil are and pcb board
Electric connection, receiving coil and transmitting coil are respectively arranged at the two sides of lithium battery, include a two-way wireless charging in the pcb board
Electric discharge road, the double-direction radio charge-discharge circuit includes power receiving end, power management chip and power emission end, and the power connects
Receiving end and power emission end are electrically connected with power management chip, and the power receiving end also wirelessly connects with external charging equipment
It connects, the power emission end is also wirelessly connected with electronic equipment, and the power management chip and lithium battery are electrically connected.
Preferably, the power management chip includes decompression charging circuit, first switch tube, step-up discharge circuit, second
Switching tube, MCU control circuit, third switching tube and lithium battery protection circuit, the first switch tube, second switch, third
Switching tube, lithium battery protection circuit respectively with MCU control circuit be electrically connected, the decompression charging circuit respectively with first switch
Pipe and second switch are electrically connected, and the step-up discharge circuit is electrically connected with first switch tube and third switching tube respectively,
The second switch, third switching tube are electrically connected with lithium battery protection circuit respectively, the lithium battery protection circuit and lithium
Battery is electrically connected.
Preferably, the power receiving end includes that a reception controls chip, the reception control chip and receiving coil electricity
Property connection.
Preferably, the power emission end includes emission control chip and H-bridge drive circuit, the emission control chip and
H-bridge drive circuit is electrically connected, H-bridge drive circuit and transmitting coil.
Preferably, the lithium battery protection circuit includes over-voltage over-current protection circuit, thermal-shutdown circuit and electric power detection
Circuit.
Preferably, the power management chip uses SC9802 model chip.
Preferably, the reception control chip uses CWQ1100 model chip.
Preferably, the emission control chip uses CWQ1000 model chip.
Compared with prior art, the double-direction radio charge and discharge device of the utility model, using integrated decompression charging circuit and liter
The power management chip of discharge circuit is pressed, charging circuit is depressured and step-up discharge circuit is isolated by first switch tube；When
When power management chip opens first switch tube, control decompression charging circuit and step-up discharge circuit are worked at the same time, and realize that side is filled
While the charge mode put, solves the charging problems that existing wireless charging device can only individually charge or individually discharge, and defeated
Power reaches 15W out, meets fast charge requirement, effectively shortens the charging time.
[Detailed description of the invention]
Fig. 1 is a kind of structural schematic diagram of double-direction radio charge and discharge device of the utility model；
Fig. 2 is a kind of double-direction radio charge-discharge circuit block diagram of double-direction radio charge and discharge device of the utility model；
Fig. 3 is a kind of power receiving terminal circuit schematic diagram of double-direction radio charge and discharge device of the utility model；
Fig. 4 is a kind of power management chip structural block diagram of double-direction radio charge and discharge device of the utility model；
Fig. 5 is a kind of power management chip circuit diagram of double-direction radio charge and discharge device of the utility model；
Fig. 6 is a kind of power emission end structure block diagram of double-direction radio charge and discharge device of the utility model；
Fig. 7 is a kind of power emission terminal circuit schematic diagram of double-direction radio charge and discharge device of the utility model.
[specific embodiment]
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used for explaining
The utility model is not used to limit the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only limitted to the relative position in given view, rather than absolute position.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage
Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.It is " more in the description of the present invention,
It is a " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
Referring to Fig. 1, a kind of double-direction radio charge and discharge device of the utility model, including pcb board 100, lithium battery 40, reception
Coil 201 and transmitting coil 503, the lithium battery 40, receiving coil 201 and transmitting coil 503 electrically connect with pcb board 100
It connects, receiving coil 201 and transmitting coil 503 are respectively arranged at the two sides of lithium battery 40.
Referring to Fig. 2, including a two-way wireless charging electric discharge road, the double-direction radio charge-discharge circuit packet in the pcb board 100
Power receiving end 20, power management chip 30 and power emission end 50 are included, the power receiving end 20 and power emission end 50 are equal
It is electrically connected with power management chip 30.The power receiving end 20 is also wirelessly connected with external charging equipment 10, is assisted by QI
View carries out identification, signal connection and power configuration, and after connecting configuration successful, power receiving end 20, which receives, comes from external charging
The power transmission of equipment 10.The power emission end 50 is also wirelessly connected with electronic equipment 60, carries out identity knowledge by QI agreement
Not, signal connection and power configuration, after connecting configuration successful, 50 transmission power of power emission end to electronic equipment 60.The electricity
Source control chip 30 and lithium battery 40 are electrically connected.
Referring to Fig. 3, the power receiving end 20 includes that a reception controls chip, the reception controls chip and receives line
Circle 201 is electrically connected；The receiving coil 201 receives the communication letter from external charging equipment 10 using electromagnetic induction principle
Breath, the reception control chip is communicated using QI agreement with external charging equipment 10, after communicating successfully, receives control chip
The voltage of direct current is limited in 9V at direct current, and by internal circuit by the AC rectification that receiving coil 201 is incuded.Institute
Reception control chip is stated using CWQ1100 model chip.
Fig. 4 and Fig. 5 are please referred to, the power management chip 30 includes decompression charging circuit 301, first switch tube 302, rises
Discharge circuit 303, second switch 304, MCU control circuit 305, third switching tube 306 and lithium battery protection circuit 307 are pressed,
The first switch tube 302, second switch 304, third switching tube 306, lithium battery protection circuit 307 are controlled with MCU respectively
Circuit 305 is electrically connected, and the decompression charging circuit 301 electrically connects with first switch tube 302 and second switch 304 respectively
It connects, the step-up discharge circuit 303 is electrically connected with first switch tube 302 and third switching tube 306 respectively, the second switch
Pipe 304, third switching tube 306 are electrically connected with lithium battery protection circuit 307 respectively, the lithium battery protection circuit 307 and lithium
Battery 40 is electrically connected.
9V direct current is reduced to voltage with the constant Constant Electric Current of load variable-current by the decompression charging circuit 301, through the
One switching tube 302 arrives step-up discharge circuit 303, or carries out constant-current charge through second switch 304 to lithium battery 40；The liter
Press the direct current that the constant current electric boost after decompression is 12V by discharge circuit 303；The MCU control circuit 305 controls first switch
The opening and closing of pipe 302, second switch 304 and third switching tube 306；When the first switch tube 302 is opened, decompression is filled
Circuit 301 and step-up discharge circuit 303 connect, and decompression charging circuit 301 carries out the voltage that power receiving end 20 exports 9V
Decompression, is loaded directly into step-up discharge circuit 303, step-up discharge circuit 303 boosts to direct current, and voltage reaches 12V；Institute
When stating the opening of second switch 304, Constant Electric Current gives lithium battery 40 to charge through lithium battery protection circuit 307, when second switch 304
When closing, lithium battery protection circuit 307 stops lithium battery 40 and charges；When the third switching tube 306 is opened, lithium battery 40 is through lithium
Battery protecting circuit 307 discharges, and when the third switching tube 306 is closed, the stopping of lithium battery protection circuit 307 discharges into boosting and puts
Circuit 303.Power management chip 30 uses SC9802 model chip.
The lithium battery protection circuit 307 includes over-voltage over-current protection circuit, thermal-shutdown circuit and electric power detection electricity
Road.The over-voltage over-current protection circuit is when lithium battery 40 is charged and discharged, when its positive and negative both end voltage and electric current are more than setting
Play a part of to cut off circuit when value；When the thermal-shutdown circuit detects that 40 surface temperature of lithium battery is more than setting value, stop
Lithium battery is charged and discharged, has protective effect to lithium battery 40, extends 40 service life of lithium battery；The electric quantity detecting circuit detection
The size of the positive and negative both end voltage value of lithium battery 40, and then judge the electricity of lithium battery 40, it is aobvious by LED light or digital display tube
Show.The lithium battery protection circuit 307 returns the power supply of MCU control circuit 305.
Fig. 6 and Fig. 7 are please referred to, the power emission end 50 includes emission control chip 501 and H-bridge drive circuit 502, institute
It states emission control chip 501 and H-bridge drive circuit 502 is electrically connected, H-bridge drive circuit 502 and transmitting coil 503, the hair
It penetrates control chip 501 and uses PWM modulation principle, generate the identical pulse pair H-bridge drive circuit 502 in four tunnels and driven, the H
Bridge driving circuit 502 generates inversion, the alternating current for being 12V by the DC inverter of 12V；The transmitting coil 503 is according to electricity
Magnetic induction principle, by alternating current transmission to electronic equipment 60.The emission control chip 501 uses CWQ1000 model chip.
When work, the power management chip 30 is by MCU control circuit 305 to first switch tube 302, second switch
The opening and closing of pipe 304 and third switching tube 306, control decompression charging circuit 301 and the independent work of step-up discharge circuit 303
Make, also two-way can control to work at the same time.When the MCU control circuit 305 opens first switch tube 302, it is depressured charging circuit
301 and step-up discharge circuit 303 connect, decompression charging circuit 301 by power receiving end 20 export 9V voltage be depressured, directly
It connects and is loaded into step-up discharge circuit 303, step-up discharge circuit 303 boosts to direct current, and voltage reaches 12V, the voltage of 12V
It is applied to power emission end 50, realization is put when filling, and the power that power emission end 50 exports can also be realized fast up to 15W
Mold filling formula.
When being put when filling, when the received input power in the power receiving end 20 is greater than the defeated of the power emission end 50
Out when power, the MCU control circuit 305 in power management chip 30 can open second switch 304, and surplus power can be to lithium electricity
It charges in pond 40；When the received input power in the power receiving end 20 is less than the output power at the power emission end 50, electricity
MCU control circuit 305 in source control chip 30 can open third switching tube 306, and lithium battery 40 discharges, lithium battery protection circuit
307 feed sufficient power to power emission end 50.
Compared with prior art, the double-direction radio charge and discharge device of the utility model, using integrated 301 He of decompression charging circuit
The power management chip 30 of step-up discharge circuit 303, is depressured charging circuit 301 and step-up discharge circuit 303 passes through first switch
Pipe 302 is isolated；When power management chip 30 opens first switch tube 302, control decompression charging circuit 301 and boosting are put
Circuit 303 works at the same time, and realizes the charge mode put when filling, solve existing wireless charging device can only individually charge or
The charging problems that person individually discharges, and output power reaches 15W, meets fast charge requirement, effectively shortens the charging time.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
All any modifications made within the design of the utility model, equivalent replacement and improvement etc. should be included in the utility model
Scope of patent protection in.
Claims (8)
1. a kind of double-direction radio charge and discharge device, which is characterized in that including pcb board, lithium battery, receiving coil and transmitting coil, institute
It states lithium battery, receiving coil and transmitting coil to be electrically connected with pcb board, receiving coil and transmitting coil are respectively arranged at lithium electricity
The two sides in pond；
It include a two-way wireless charging electric discharge road in the pcb board, the double-direction radio charge-discharge circuit includes power receiving end, power supply
Managing chip and power emission end, the power receiving end and power emission end are electrically connected with power management chip, described
Power receiving end is also wirelessly connected with external charging equipment, and the power emission end is also wirelessly connected with electronic equipment, the electricity
Source control chip and lithium battery are electrically connected.
2. double-direction radio charge and discharge device as described in claim 1, which is characterized in that the power management chip includes that decompression is filled
Circuit, first switch tube, step-up discharge circuit, second switch, MCU control circuit, third switching tube and li-ion cell protection
Circuit, the first switch tube, second switch, third switching tube, lithium battery protection circuit are electrical with MCU control circuit respectively
Connection, the decompression charging circuit are electrically connected with first switch tube and second switch respectively, the step-up discharge circuit point
Be not electrically connected with first switch tube and third switching tube, the second switch, third switching tube respectively with li-ion cell protection
Circuit is electrically connected, and the lithium battery protection circuit and lithium battery are electrically connected.
3. double-direction radio charge and discharge device as described in claim 1, which is characterized in that the power receiving end includes a reception control
Coremaking piece, the reception control chip and receiving coil are electrically connected.
4. double-direction radio charge and discharge device as described in claim 1, which is characterized in that the power emission end includes emission control
Chip and H-bridge drive circuit, the emission control chip and H-bridge drive circuit are electrically connected, H-bridge drive circuit and emission lines
Circle.
5. double-direction radio charge and discharge device as claimed in claim 2, which is characterized in that the lithium battery protection circuit includes over-voltage
Current foldback circuit, thermal-shutdown circuit and electric quantity detecting circuit.
6. double-direction radio charge and discharge device as claimed in claim 2, which is characterized in that the power management chip uses SC9802
Model chip.
7. double-direction radio charge and discharge device as claimed in claim 3, which is characterized in that the reception control chip uses
CWQ1100 model chip.
8. double-direction radio charge and discharge device as claimed in claim 4, which is characterized in that the emission control chip uses
CWQ1000 model chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822100299.4U CN209046328U (en) | 2018-12-13 | 2018-12-13 | A kind of double-direction radio charge and discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822100299.4U CN209046328U (en) | 2018-12-13 | 2018-12-13 | A kind of double-direction radio charge and discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209046328U true CN209046328U (en) | 2019-06-28 |
Family
ID=67044354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822100299.4U Active CN209046328U (en) | 2018-12-13 | 2018-12-13 | A kind of double-direction radio charge and discharge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209046328U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110198070A (en) * | 2019-07-04 | 2019-09-03 | 深圳致晟文化创新有限公司 | Double-direction radio charging/discharging apparatus |
| CN112590572A (en) * | 2019-09-16 | 2021-04-02 | 联合汽车电子有限公司 | Bilateral protection circuit device and method of wireless electric energy transmission system |
| CN112928785A (en) * | 2019-12-06 | 2021-06-08 | 东莞市盈聚电源有限公司 | Wireless charging system for electric mower |
| WO2022117052A1 (en) * | 2020-12-04 | 2022-06-09 | 华为技术有限公司 | Wireless charging circuit and system, electronic device, and control method |
-
2018
- 2018-12-13 CN CN201822100299.4U patent/CN209046328U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110198070A (en) * | 2019-07-04 | 2019-09-03 | 深圳致晟文化创新有限公司 | Double-direction radio charging/discharging apparatus |
| CN112590572A (en) * | 2019-09-16 | 2021-04-02 | 联合汽车电子有限公司 | Bilateral protection circuit device and method of wireless electric energy transmission system |
| CN112928785A (en) * | 2019-12-06 | 2021-06-08 | 东莞市盈聚电源有限公司 | Wireless charging system for electric mower |
| WO2022117052A1 (en) * | 2020-12-04 | 2022-06-09 | 华为技术有限公司 | Wireless charging circuit and system, electronic device, and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209046328U (en) | A kind of double-direction radio charge and discharge device | |
| CN102882260B (en) | Lithium battery charging control method with temperature detection function and charger for implementing lithium battery charging control method | |
| CN205489660U (en) | Portable power source of USBA type interface with TYPE -C interface and general | |
| CN204190424U (en) | A kind of charge-discharge protection circuit and charge-discharge system | |
| CN205986274U (en) | Multichannel battery charging system | |
| CN203352252U (en) | Intelligent mobile power supply device | |
| CN206378916U (en) | Charge lock set | |
| CN201134686Y (en) | Charging device for lithium ion cell | |
| CN203026997U (en) | Novel portable mobile power supply | |
| CN202333932U (en) | ZIGBEE based energy-saving intelligent wireless charging device | |
| CN201417929Y (en) | Charger protection circuit | |
| CN105140995A (en) | Safe and reliable portable power source | |
| CN107808942A (en) | Self-shield vehicle mounted electric pitches Vehicular battery management system | |
| CN201699253U (en) | Power supply seat with intelligent charging function | |
| CN204903730U (en) | Power fills discharge capacity test circuit | |
| CN210693528U (en) | Portable precious wireless charging and discharging circuit that charges | |
| CN210670645U (en) | Control system for solar street lamp | |
| CN205265284U (en) | Battery charging/ discharging management device and metering device who makes with device | |
| CN106253385A (en) | A kind of battery charger | |
| CN202930977U (en) | Lithium battery charger with temperature detection | |
| CN208522491U (en) | Battery pack balancing device, battery apparatus and battery-powered device | |
| CN208272656U (en) | Lithium titanate battery mould group mends electric power sourced electric system | |
| CN208241371U (en) | A kind of pair is filled wireless charging transmitter | |
| CN204906012U (en) | Wireless power supply's emitter and receiving arrangement | |
| CN202818727U (en) | Work lamp possessing external charging function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |