CN207625323U - A kind of wireless charging device - Google Patents
A kind of wireless charging device Download PDFInfo
- Publication number
- CN207625323U CN207625323U CN201721697412.0U CN201721697412U CN207625323U CN 207625323 U CN207625323 U CN 207625323U CN 201721697412 U CN201721697412 U CN 201721697412U CN 207625323 U CN207625323 U CN 207625323U
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- China
- Prior art keywords
- shell
- wireless
- charging
- charging device
- wireless charging
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- 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.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The utility model discloses a kind of wireless charging devices, suitable for mobile phone, including wireless transmitting device and radio receiver, the wireless transmitting device includes first shell, the first shell is provided with the charging interface for being connect with power supply for being fixed on the mobile phone back side in the first shell；The radio receiver includes second shell, connecting line and out splice going splice, and the second shell is connect by the connecting line with the out splice going splice, and the front of the second shell is matched with the back side of the first shell.The utility model is related to charging technique field, a kind of wireless charging device realizes being accurately positioned for wireless transmitting device and radio receiver, charge efficiency is high using the first shell and second shell being mutually matched.And user without plugging charging wire repeatedly, it is easy to use.
Description
Technical field
The utility model is related to charging technique field more particularly to a kind of wireless charging devices.
Background technology
With the continuous development of computer technology, information technology, smart mobile phone screen is increasing, processor ability is more next
Stronger, really worse and worse, people frequently encounter the situation of out of power during mobile phone use to the cruising ability of mobile phone, so being in
In, office be usually ready for charger or USB charging wires, but connecting line excessive on office's table allows them again
Feel very complicated, and plug charging wire also allows user to feel put about repeatedly.Wireless charging technology is extensive in the prior art
Using QI (magnetic induction) technology becomes the mainstream in market.And QI (magnetic induction) technology require to be electrically charged in equipment receiving coil with
Transmitting coil height in charging equipment is concentric, and the distance between coil is steady state value, and otherwise charge efficiency can be by very big
Influence.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of wireless charging device, charge efficiency
Height, and it is easy to use.
Technical solution used by the utility model is：A kind of wireless charging device is suitable for mobile phone, including wireless transmission
Equipment and radio receiver, the wireless transmitting device include first shell, be provided in the first shell for electricity
The charging interface of source connection；The radio receiver includes second shell, and out splice going splice, institute are provided in the second shell
It states second shell and is matched with the back side of the second shell for being fixed on the mobile phone back side, the front of the first shell.
As being further improved for said program, charging module and wireless transmission coil are provided in the first shell,
Wireless receiving coil is provided in the second shell, it is described wireless when the first shell is matched with the second shell
The center of transmitting coil is opposite with the center of wireless receiving coil.
As being further improved for said program, the charging interface is arranged in the first shell bottom.
As being further improved for said program, the front of the first shell has groove, the back of the body of the second shell
Face has the convex block with the matching grooves.
As being further improved for said program, the charging interface is that Micro USB charging interfaces or Lighting connect
Mouthful.
As being further improved for said program, the out splice going splice is Micro USB joints or Lighting connectors.
The utility model has the beneficial effects that：
A kind of wireless charging device, using the first shell and second shell being mutually matched, realize wireless transmitting device with
Radio receiver is accurately positioned, and charge efficiency is high.And user without plugging charging wire repeatedly, it is easy to use.
Description of the drawings
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is the utility model wireless charging device and mobile phone connection diagram；
Fig. 2 is the utility model wireless charging device radio receiver and mobile phone connection diagram；
Fig. 3 (a) to Fig. 3 (c) is the utility model wireless charging device charging module circuit diagram.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Fig. 1 is the utility model wireless charging device and mobile phone connection diagram, and Fig. 2 is the utility model wireless charging Denso
Radio receiver and mobile phone connection diagram are set, combined with Figure 1 and Figure 2, a kind of wireless charging device, is suitable for mobile phone, including
Wireless transmitting device and radio receiver.
Wireless transmitting device includes first shell 1, and first shell is arranged for being fixed on the mobile phone back side in first shell 1
There are the charging interface 2 being connect with power supply, charging interface 2 that the bottom sides in first shell 1 are set.In the present embodiment, charging
Mouth 2 is Micro USB charging interfaces, Lighting interfaces etc..Radio receiver includes second shell 3, is set in second shell 3
It is equipped with out splice going splice 5, in the present embodiment, out splice going splice is Micro USB joints or Lighting connectors, and out splice going splice 5 is used for
Connection is matched with the charging interface of mobile phone.The front and the back side of second shell 2 of first shell 1 are provided with the knot being mutually matched
Structure, in the present embodiment, the front of first shell 1 has a groove (being not shown in Fig. 1 and Fig. 2), the back side of second shell 3 have with
The convex block (being not shown in Fig. 1 and Fig. 2) of matching grooves, the groove and the convex block of second shell 2 of first shell 1 match, it is clear that
, can also be the structure that other match.Charging module and wireless transmission coil, second shell 3 are provided in first shell 1
It is inside provided with wireless receiving coil, when the front of first shell 1 is matched with the back side of second shell 3, wireless transmission coil
Center is opposite with the center of wireless receiving coil.
Fig. 3 (a) to Fig. 3 (c) is the utility model wireless charging device charging module circuit diagram, in conjunction with Fig. 3 (a) to Fig. 3
(c), the charging module of the wireless charging device includes power circuit 1, governor circuit 2, driving circuit 3, LC resonance circuit 4, solution
Code Acquisition Circuit 5 and current detection circuit 6.The input terminal of power circuit 1 is connect with power supply, the output end of power circuit 1 with point
It is not connect with the input terminal of the input terminal of governor circuit 2 and driving circuit 3, output end and the LC resonance circuit 4 of driving circuit 3
Input terminal connects, LC resonance circuit 4 for generating inverter voltage, the output end of LC resonance circuit 4 respectively with current detection circuit 6
Input terminal with decoding Acquisition Circuit 5 input terminal connect.
Specifically, governor circuit 2 includes charging chip U2, in the present embodiment, charging chip U2 uses DW540 chips.Nothing
Line transmitting equipment is connect by charging interface with 5V adapters, the input interface J1 connection adapters of power circuit 1, power circuit
1 output end is connect with the vdd terminal of main control chip U2, provides working power to charging chip U2, adapter is input to input and connects
It is filtered by the first capacitance C1 after mouth J1, then gives charging chip U2 to power by first resistor R1 current limlitings.Driving circuit 3 includes the
Three AMOS pipes Q3A, the 3rd BMOS pipes Q3B, the 8th AMOS pipes Q8A and the 3rd BMOS pipe Q3B, 5V adapter are managed to the 3rd AMOS
The 3rd BMOS pipes Q3B, the are given in Q3A and the 3rd BMOS pipes Q3B power supplies, the ends UA, the ends DA, the ends UB and the ends DB of charging chip U2 respectively
Eight BMOS pipes Q8B, the 3rd AMOS pipes Q3A and the 8th AMOS pipes Q8A provide PWM drive waveforms.
Pwm signal is loaded into the base of the base stage of the first triode Q1, the base stage of the second triode Q2, the 4th triode Q4
Pole, the base stage of the 5th triode Q5, the base stage of the 6th triode Q6, the base stage of the 7th triode Q7, the 9th triode Q9 base
The base stage of pole and the tenth triode Q10, wherein the second triode Q2, the 4th triode Q4, the 9th triode Q9 and the 13rd pole
Pipe Q10 composition A bridges drivings, the first triode Q1, the 5th triode Q5, the 6th triode Q6 and the 7th triode Q7 form B bridges
Driving is combined into bipolarity by this 8 triodes and pushes the 3rd AMOS pipes Q3A, the 3rd BMOS pipes Q3B, the 8th AMOS pipes Q8A
With the grid of the 3rd BMOS pipes tetra- metal-oxide-semiconductors of Q3B, which is combined into full-bridge inverting, and output inverter voltage is humorous by LC
Shake 4 resonance of circuit, and LC resonance circuit 4 includes third capacitance C3, the 4th capacitance C4, the 5th capacitance C5 and the 7th capacitance of parallel connection
C7, one end of four capacitances is connect with the drain electrode of the source electrode and the 8th BMOS pipes Q8B of the 3rd BMOS pipes Q3B respectively, the other end divides
It is not connect with one end of one end of the first inductance L1 and the 6th resistance R6, the other end of the first inductance L1 is managed with the 3rd AMOS respectively
The drain electrode of the source electrode of Q3A and the 8th AMOS pipes Q8A connect, and the other end of the 6th resistance R6 is by connecting the first diode and decoding
The input terminal of Acquisition Circuit 5 connects.First inductance L1 is as wireless transmission coil.
6th resistance R6 is used to detect the resonant condition of LC resonance circuit 4, to the voltage commutation of the first inductance L1.Decoding is adopted
Collector 5 includes the 11st metal-oxide-semiconductor Q11, the 22nd resistance R22, storage capacitor C8, the first operational amplifier O1, the 6th electricity
R6 is hindered by the first diode D1 and the 22nd resistance R22, by the voltage-drop loading of the first inductance L1 to the 11st metal-oxide-semiconductor Q11
Drain electrode, the ends TEM_DET of charging chip U2 acquire the voltage on the 11st metal-oxide-semiconductor Q11 source electrodes.It is right that first diode D1 passes through
Voltage energy storage, the normal phase input end of the first operational amplifier O1 are carried out by storage capacitor C8 after the voltage commutation of first inductance L1
It is connect with storage capacitor C8, the voltage of acquisition storage capacitor C8, then voltage output is amplified by first by closed loop operation amplifier.It fills
The ends CODE_DET of electrical chip U2 are connect with the output end of the first operational amplifier O1, for acquiring amplified first amplification electricity
It presses and it is decoded.
Current detection circuit 6 includes second operational amplifier O2 and the 14th resistance R14, the source electrode of the 8th AMOS pipes Q8A
It is connect with one end of the 14th resistance R14 with the source electrode of the 8th BMOS pipes Q8B, the other end connection electricity of the 14th resistance R14
Source, the normal phase input end of second operational amplifier O1 source with the source electrode and the 8th BMOS pipes Q8B of the 8th AMOS pipes Q8A respectively
Pole connects, the voltage for acquiring the 14th resistance R14, by exporting second after second operational amplifier O2 closed loop operation amplifiers
Amplify voltage, and by the second amplification voltage-drop loading to the ends AMP_DET of charging chip U2, U2 pairs second of charging chip amplifies voltage
It is decoded.
It is connected respectively the first LED light S1 and the second LED light S2, this reality on the ends LED1 and the ends LED2 of charging chip U2
It applies in example, the first LED light S1 uses red LED lamp, the second LED light S2 to use blue LED lamp.When wireless transmitting device connects electricity
Source, the first LED light S1 and the second LED light S2 alternately flicker once, when radio receiver does not match access, the first LED light
S1 is always on, and when radio receiver matches access wireless transmitting device, the first inductance L1 electric currents generate variation, are adopted by decoding
Collector 5 is fed back in charging chip U2, and charging chip U2 controls the second LED light S2 and flickers always.
A kind of wireless charging device, using the first shell and second shell being mutually matched, realize wireless transmitting device with
Radio receiver is accurately positioned, and charge efficiency is high.And user without plugging charging wire repeatedly, it is easy to use.
It is to be illustrated to the preferable implementation of the utility model, but the invention is not limited to the reality above
Example is applied, those skilled in the art can also make various equivalent variations without departing from the spirit of the present invention
Or replace, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (6)
1. a kind of wireless charging device is suitable for mobile phone, which is characterized in that it includes that wireless transmitting device and wireless receiving are set
Standby, the wireless transmitting device includes first shell, and the charging interface for being connect with power supply is provided in the first shell；
The radio receiver includes second shell, out splice going splice is provided in the second shell, the second shell is for solid
It is scheduled on the mobile phone back side, the front of the first shell is matched with the back side of the second shell.
2. a kind of wireless charging device according to claim 1, which is characterized in that be provided with charging in the first shell
Module and wireless transmission coil are provided with wireless receiving coil in the second shell, when the first shell and described second
When shell matches, the center of the wireless transmission coil is opposite with the center of wireless receiving coil.
3. a kind of wireless charging device according to claim 2, which is characterized in that charging interface setting is described the
One housing bottom.
4. a kind of wireless charging device according to claim 3, which is characterized in that the front of the first shell has recessed
Slot, the back side of the second shell have the convex block with the matching grooves.
5. a kind of wireless charging device according to any one of claims 1 to 4, which is characterized in that the charging interface is
Micro USB charging interfaces or Lighting interfaces.
6. a kind of wireless charging device according to any one of claims 1 to 4, which is characterized in that the out splice going splice is
Micro USB joints or Lighting connectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721697412.0U CN207625323U (en) | 2017-12-07 | 2017-12-07 | A kind of wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721697412.0U CN207625323U (en) | 2017-12-07 | 2017-12-07 | A kind of wireless charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207625323U true CN207625323U (en) | 2018-07-17 |
Family
ID=62822644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721697412.0U Expired - Fee Related CN207625323U (en) | 2017-12-07 | 2017-12-07 | A kind of wireless charging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207625323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365087A (en) * | 2019-06-19 | 2019-10-22 | 沈阳创智家科技有限公司 | Intelligent closestool wireless charging remote control device |
-
2017
- 2017-12-07 CN CN201721697412.0U patent/CN207625323U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365087A (en) * | 2019-06-19 | 2019-10-22 | 沈阳创智家科技有限公司 | Intelligent closestool wireless charging remote control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |