CN203859778U - Wireless charging power supply mobile phone back cover - Google Patents
Wireless charging power supply mobile phone back cover Download PDFInfo
- Publication number
- CN203859778U CN203859778U CN201420132708.8U CN201420132708U CN203859778U CN 203859778 U CN203859778 U CN 203859778U CN 201420132708 U CN201420132708 U CN 201420132708U CN 203859778 U CN203859778 U CN 203859778U
- Authority
- CN
- China
- Prior art keywords
- circuit
- wireless power
- power supply
- mobile phone
- wireless
- 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.)
- Expired - Fee Related
Links
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000007726 management method Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a wireless charging power supply mobile phone back cover. A widely used mobile phone is used to supply electricity for various low power consumption electronic equipment with a wireless power transmission function, the mobile phone can be cooperated to supply electricity for an outdoor electronic map, a bus query device, a library microcomputer query device, and a dinner table order device, the information coverage rate is improved, and the cost and overhead of power supply are reduced. The wireless charging power supply mobile phone back cover comprises a receiving coil, a rectifying and voltage stabilizing circuit, a battery charging management circuit, a lithium battery circuit, a voltage stabilizing circuit, a wireless power supply driving circuit, a wireless power supply control circuit and a transmission resonance coil. The receiving coil, the rectifying and voltage stabilizing circuit, the battery charging management circuit, the lithium battery circuit, the voltage stabilizing circuit, the wireless power supply driving circuit, and the transmission resonance coil are orderly connected in series. The output end of the transmission resonance coil is connected with the input end of the wireless power supply control circuit. The output end of the wireless power supply control circuit is connected to the wireless power supply driving circuit.
Description
Technical field
The utility model relates to wireless charging field, particularly a kind of wireless charging powered mobile phone bonnet.
Background technology
Today of development of information, electronic equipment is widely used in the every field of life.Tradition supply power mode adopts wired power transmission, need to lay special transmission line, needs circuit design in advance, revises difficulty and cost is large afterwards.In remote place, capacity utilization is lower, and laying-out cost is high.Meanwhile, in order to meet the different need for electricity of various electronic equipments, need to configure power supply adaptor, civil power is changed into low-voltage DC.Especially, as bus station from far-off regions, utilization rate is lower, adopts wired supply power mode cost higher; Electronics food-ordering device as on dining table, need to often move, and sweeps, and uses wired power supply can bring a lot of inconvenience; As library's inquiry unit, planning as complete in previous shortage is difficult to newly-increased wired power supply unit afterwards.
Utility model content
The utility model discloses a kind of wireless charging powered mobile phone bonnet, utilize the mobile phone of extensive use, can be various low power dissipation electron equipment power supplies of being furnished with wireless transmission of electricity function, can matching with mobile phone be outdoor electronic chart, public transportation enquiry device, and library's microcomputer inquiry unit, the power supply of dining table food-ordering device, improve information-based coverage rate, reduce power supply cost expense.
The technical solution of the utility model is achieved in that
A wireless charging powered mobile phone bonnet, comprises receiving coil, regulator rectifier circuit, battery charging management circuit, lithium battery circuit, voltage stabilizing circuit, wireless power drive circuit, wireless power control circuit and transmitting resonance coil; Described take-up circle, described regulator rectifier circuit, described battery charging management circuit, described lithium battery circuit, described voltage stabilizing circuit, described wireless power drive circuit, described transmitting resonance coil are connected successively, described transmitting resonance coil output is connected with described wireless power control circuit input, and the output of described wireless power control circuit is connected into described wireless power drive circuit.
Further, described battery charging management circuit comprises testing circuit, constant-current circuit and constant voltage circuit.
Further, described wireless power drive circuit comprises oscillating circuit and power amplifier.
Further, described wireless power control circuit comprises auxiliary circuit, control circuit and testing circuit.
From above-mentioned, to description of the present utility model, compared to the prior art, the utlity model has following advantage:
The utility model provides a kind of wireless charging powered mobile phone bonnet, can be by extensive universal mobile phone, and for the high equipment of various power supply costs provides a kind of low-cost power supply plan, practicality is high, is conducive to economize on resources.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model syndeton schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1, a kind of wireless charging powered mobile phone bonnet, comprises receiving coil 1, regulator rectifier circuit 2, battery charging management circuit 3, lithium battery circuit 4, voltage stabilizing circuit 5, wireless power drive circuit 6, wireless power control circuit 7 and transmitting resonance coil 8; Described take-up circle 1, described regulator rectifier circuit 2, described battery charging management circuit 3, described lithium battery circuit 4, described voltage stabilizing circuit 5, described wireless power drive circuit 6, described transmitting resonance coil 8 are connected successively, described transmitting resonance coil 8 outputs are connected with described wireless power control circuit 7 inputs, and the output of described wireless power control circuit 7 is connected into described wireless power drive circuit 6.
Described battery charging management circuit 3 comprises testing circuit 30, constant-current circuit 31 and constant voltage circuit 32.
Described wireless power drive circuit 6 comprises oscillating circuit 60 and power amplifier 61.
Described wireless power control circuit 7 comprises auxiliary circuit 70, control circuit 71 and testing circuit 72.
During charging, receiving coil is sent out coil excitation resonance, produce alternating voltage, and provide galvanic current by regulator rectifier circuit for rear class battery charging management circuit, battery charging management circuit is by detecting electric current and voltage, charging voltage and current is precisely controlled, and safety and Health ground is battery charging.
During power supply, voltage stabilizing circuit stable cell voltage, wireless charging drive circuit converts direct current to high-frequency impulse circuit, and by sending the resonance of coil excitation receiving coil, for load provides electric energy.
In the present embodiment, when the AC matching with this device input coil turns DC wireless charger place in circuit, AC turns the coil of DC wireless charger to this device coil wireless power, because this device adopts magnetic coupling resonance technique, during transmission, can not produce the electromagnetic field of radiation, efficiency of transmission is high, there is no to external world electromagnetic interference.Now, regulator rectifier circuit transfers the alternating current in receiving coil to the direct current of voltage stabilization, and offer battery charging management circuit, battery charging management circuit accumulators provides electric energy, and the voltage and current in charging process is monitored, and select suitable charging voltage and current, be storage battery safety charging.
When mate with this device output winding extraneous power consumption equipment place in circuit time, wireless power control circuit enables electric energy output, cell voltage is through voltage stabilizing circuit voltage stabilizing, offer wireless power drive circuit, wherein, oscillating circuit converts the direct current of input to dither electric current, and is amplified and be transferred to resonance coil by power amplifier
Wireless power control circuit detects and control coil electric current, and frequency interferences is suppressed.Load coupling coil, by electromagnetic field " coupling ", is accepted the electric energy from power supply coil, and by offering power consumption equipment after rectifying and voltage-stabilizing.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. a wireless charging powered mobile phone bonnet, is characterized in that: comprise receiving coil, regulator rectifier circuit, battery charging management circuit, lithium battery circuit, voltage stabilizing circuit, wireless power drive circuit, wireless power control circuit and transmitting resonance coil; Described take-up circle, described regulator rectifier circuit, described battery charging management circuit, described lithium battery circuit, described voltage stabilizing circuit, described wireless power drive circuit, described transmitting resonance coil are connected successively, described transmitting resonance coil output is connected with described wireless power control circuit input, and the output of described wireless power control circuit is connected into described wireless power drive circuit.
2. a kind of wireless charging powered mobile phone bonnet as claimed in claim 1, is characterized in that: described battery charging management circuit comprises testing circuit, constant-current circuit and constant voltage circuit.
3. a kind of wireless charging powered mobile phone bonnet as claimed in claim 1, is characterized in that: described wireless power drive circuit comprises oscillating circuit and power amplifier.
4. a kind of wireless charging powered mobile phone bonnet as claimed in claim 1, is characterized in that: described wireless power control circuit comprises auxiliary circuit, control circuit and testing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132708.8U CN203859778U (en) | 2014-03-21 | 2014-03-21 | Wireless charging power supply mobile phone back cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132708.8U CN203859778U (en) | 2014-03-21 | 2014-03-21 | Wireless charging power supply mobile phone back cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859778U true CN203859778U (en) | 2014-10-01 |
Family
ID=51609622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420132708.8U Expired - Fee Related CN203859778U (en) | 2014-03-21 | 2014-03-21 | Wireless charging power supply mobile phone back cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203859778U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553121A (en) * | 2015-08-21 | 2016-05-04 | 南阳市信利佳电子有限责任公司 | Low-power wireless power supply system |
| CN111049243A (en) * | 2020-01-06 | 2020-04-21 | 北京航天自动控制研究所 | Wireless power supply system and aircraft |
-
2014
- 2014-03-21 CN CN201420132708.8U patent/CN203859778U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553121A (en) * | 2015-08-21 | 2016-05-04 | 南阳市信利佳电子有限责任公司 | Low-power wireless power supply system |
| CN111049243A (en) * | 2020-01-06 | 2020-04-21 | 北京航天自动控制研究所 | Wireless power supply system and aircraft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20160321 |