CN202978451U - Wireless charging device for mobile phone - Google Patents
Wireless charging device for mobile phone Download PDFInfo
- Publication number
- CN202978451U CN202978451U CN2012206874227U CN201220687422U CN202978451U CN 202978451 U CN202978451 U CN 202978451U CN 2012206874227 U CN2012206874227 U CN 2012206874227U CN 201220687422 U CN201220687422 U CN 201220687422U CN 202978451 U CN202978451 U CN 202978451U
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- coil
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- transmitting coil
- wireless charging
- mobile phone
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Abstract
The utility model discloses a wireless charging device for a mobile phone. The wireless charging device comprises a wireless transmitting module and a wireless receiving module; and the wireless transmitting module is connected to a power end, and the wireless receiving module is connected to a receiving end of the mobile phone and comprises a receiving coil. The wireless charging device is characterized in that the wireless transmitting module comprises a power input port, a control circuit and a plurality of transmitting coil power supply units, each transmitting coil power supply unit comprises a transmitting coil, the various transmitting coils are respectively arranged in different directions, each transmitting coil power supply unit is connected with the power input port and the control circuit, the control circuit is used for controlling the certain transmitting coil to charge the receiving coil, and the electromagnetic coupling degree between the certain transmitting coil and the receiving coil is the highest.
Description
Technical field
The utility model relates to a kind of Mobile phone wireless charging device.
Background technology
At present, the product that utilizes electromagnetic induction to carry out the mobile phone wireless charging is all the single transmit coil version, and as shown in Figure 1, an expelling plate only has a transmitting coil.The user needs the transmitting coil position placement of the receiving coil aligning transmitting terminal of catcher machine receiving terminal just can charge when using wireless charging.The user carries out wireless charging at every turn all to need deliberately to go to aim at, very inconvenient in use.
The utility model content
The purpose of this utility model is exactly in order to overcome the deficiencies in the prior art, provides a kind of receiving coil easily effectively to aim at transmitting coil, the Mobile phone wireless charging device that is user-friendly to.
For achieving the above object, the utility model is by the following technical solutions:
a kind of Mobile phone wireless charging device, comprise the wireless receiving module that is connected in the mobile phone receiving terminal and the wireless transmitter module that is connected in power end, described wireless receiving module comprises receiving coil, described wireless transmitter module comprises the power input mouth, control circuit and contain separately many groups transmitting coil power supply unit of a transmitting coil, each transmitting coil is arranged in respectively different orientation, every group of transmitting coil power supply unit respectively with described power input mouth be connected control circuit and be connected, described control circuit be used for to be controlled by charging to described receiving coil with the best transmitting coil of described receiving coil electromagnetic coupled degree.
Can further adopt following technical schemes:
Each transmitting coil power supply unit comprises transmitting coil, drive circuit and inverter circuit, described power input mouth connects the power input of each drive circuit and inverter circuit, the output of described drive circuit connects the drive end of described inverter circuit, the output of described inverter circuit connects described transmitting coil, and the output of described control circuit connects the control end of described drive circuit.
Described control circuit comprises wireless charging transmitting terminal driving governor and microcontroller, described wireless charging transmitting terminal driving governor is connected with each drive circuit and provides PWM to drive signal, and described microcontroller is connected with each drive circuit and controls drive circuit works or quit work.
A plurality of transmitting coil honeycomb fashions are arranged.
A plurality of transmitting coils are arranged to towards different directions.
The technique effect that the utility model is useful is:
By a plurality of transmitting coils are set in wireless transmitter module, each transmitting coil is arranged in respectively different orientation, the alternation at ordinary times of a plurality of transmitting coils, so the mobile phone that the user does not need deliberately to be connected to receiving coil as in the past removes to aim at unique transmitting coil, but more optionally holding mobile telephone charges, and is user-friendly to.
Description of drawings
Fig. 1 is the structural representation of traditional Mobile phone wireless charging device;
Fig. 2 is the structural representation of an embodiment of the utility model Mobile phone wireless charging device.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail by the following examples.
See also Fig. 2, in some embodiments, utilize the Mobile phone wireless charging device of electromagnetic induction to comprise the wireless receiving module that is connected in the mobile phone receiving terminal and the wireless transmitter module that is connected in power end, described wireless receiving module comprises receiving coil, described wireless transmitter module comprises power input mouth, control circuit and contains separately many groups transmitting coil power supply unit of a transmitting coil, each transmitting coil is arranged in respectively different orientation, every group of transmitting coil power supply unit respectively with described power input mouth be connected control circuit and be connected.
For a plurality of transmitting coils, described control circuit is selected by charging to receiving coil with best that transmitting coil of receiving coil electromagnetic coupled degree.Make each transmitting coil wheel flow-thru electrode under holding state, in the time of near receiving coil being placed on transmitter module, owing to each transmitting coil orientation differing, the electric current that control circuit can detect by the detection means of routine on different transmitting coils is different, the electric current maximum namely show this transmitting coil and the receiving coil degree of coupling best, thereby select this transmitting coil to implement charging.A plurality of transmitting coils can adopt honeycomb fashion to arrange, towards the same face but the position is different.A plurality of transmitting coils also can be arranged to towards different directions.A plurality of transmitting coils also can be configured to the position and towards all not identical.
In specific embodiment as shown in Figure 2, wireless transmitter module comprises two groups of transmitting coil power supply units, and each is organized the transmitting coil power supply unit and includes an inverter circuit, provides a drive IC that drives signal and a transmitting coil of powering by inverter circuit to inverter circuit.The power input mouth connects the power input of each drive IC and inverter circuit.Control circuit comprises wireless charging transmitting terminal drive IC and microcontroller, and wireless charging transmitting terminal drive IC is connected with each drive IC and provides PWM to drive signal, and MCU is connected with each drive IC and controls drive IC work or quit work.
Wireless charging transmitting terminal drive IC can be that drive IC (1) and drive IC (2) provide PWM to drive signal to two drive IC on the one hand, can provide wireless charging transmitting terminal working state signal, i.e. STATUS signal to MCU according to the working condition of transmitting coil on the other hand.MCU detects the STATUS signal that wireless charging transmitting terminal drive IC provides, and identifies the work at present state, judgement be to two drive IC alternately provide enable signal or only wherein a drive circuit enable signal is provided.In enable signal COIL_EN_1, COIL_EN_2, two signals simultaneously can only one be height, and one is low.For example, when COIL_EN_1=" 1 ", COIL_EN_2=" 0 ", COIL_1 work is controlled in expression, controls COIL_2 and closes.The control of the enable signal by MCU, can make periodically alternation (being equivalent to " standby " state) of transmitting coil COIL_1 and transmitting coil COIL_2, also can make one of them transmitting coil keep the charging operating state, and another transmitting coil quits work, until stop charging, reenter " standby " state.
Workflow is described as follows:
(1) after transmitting terminal (being wireless transmitter module) powers on, when MCU detects STATUS for " standby " state, MCU controls the periodic alternation of COIL_1, COIL_2, and Real Time Monitoring STATUS signal, if do not have the wireless charging receiving terminal to be positioned over transmitting terminal, transmitting coil COIL_1, COIL_2 are in the state of this standby always.
(2) if near transmitting terminal holding mobile telephone wireless charging receiving terminal (being wireless receiving module), when one of them transmitting coil COIL_1 enters the work charged state, it is that transmitting coil COIL_1 enters the work charged state that MCU detects that the STATUS signal enters " charging " state and learn, MCU controls transmitting coil COIL_1, COIL_2 and stops alternation, transmitting coil COIL_1 is fixed on operating state, closes transmitting coil COIL_2.
(3) when MCU detects the STATUS signal and is in " stopping ", MCU controls COIL_1, COIL_2 and restarts alternation, reenters " standby " state.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (5)
1. Mobile phone wireless charging device, utilize electromagnetic induction charged, described device comprises the wireless transmitter module that is connected in power end and is connected in the wireless receiving module of mobile phone receiving terminal, described wireless receiving module comprises receiving coil, it is characterized in that, described wireless transmitter module comprises the power input mouth, control circuit and contain separately many groups transmitting coil power supply unit of a transmitting coil, each transmitting coil is arranged in respectively different orientation, described many group transmitting coil power supply units respectively with described power input mouth be connected control circuit and be connected, described control circuit be used for to be controlled by charging to described receiving coil with the best transmitting coil of described receiving coil electromagnetic coupled degree.
2. Mobile phone wireless charging device as claimed in claim 1, it is characterized in that, each transmitting coil power supply unit comprises transmitting coil, drive circuit and inverter circuit, described power input mouth connects the power input of each drive circuit and inverter circuit, the output of described drive circuit connects the drive end of described inverter circuit, the output of described inverter circuit connects described transmitting coil, and the output of described control circuit connects the control end of described drive circuit.
3. Mobile phone wireless charging device as claimed in claim 2, it is characterized in that, described control circuit comprises wireless charging transmitting terminal driving governor and microcontroller, described wireless charging transmitting terminal driving governor is connected with each drive circuit and provides PWM to drive signal, and described microcontroller is connected with each drive circuit and controls drive circuit works or quit work.
4. Mobile phone wireless charging device as claimed in claim 1 or 2, is characterized in that, a plurality of transmitting coil honeycomb fashions are arranged.
5. Mobile phone wireless charging device as claimed in claim 1 or 2, is characterized in that, a plurality of transmitting coils are arranged to towards different directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206874227U CN202978451U (en) | 2012-12-13 | 2012-12-13 | Wireless charging device for mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206874227U CN202978451U (en) | 2012-12-13 | 2012-12-13 | Wireless charging device for mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978451U true CN202978451U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206874227U Expired - Lifetime CN202978451U (en) | 2012-12-13 | 2012-12-13 | Wireless charging device for mobile phone |
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| Country | Link |
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| CN (1) | CN202978451U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638695A (en) * | 2013-11-11 | 2015-05-20 | 中兴通讯股份有限公司 | Mobile terminal wireless charging method, transmission panel and device |
| CN105529792A (en) * | 2014-12-16 | 2016-04-27 | 比亚迪股份有限公司 | Wireless charging system and wireless charging apparatus |
| CN105529759A (en) * | 2014-12-05 | 2016-04-27 | 比亚迪股份有限公司 | Wireless charger and charging method therefor |
| CN106356917A (en) * | 2016-08-30 | 2017-01-25 | 于士博 | Wireless charging transmitting device |
| CN107332363A (en) * | 2017-08-21 | 2017-11-07 | 京东方科技集团股份有限公司 | Wireless charging system and its control method |
| CN108923509A (en) * | 2018-07-06 | 2018-11-30 | 维沃移动通信有限公司 | A kind of wireless charging transmit circuit, wireless charging receive circuit and method |
| CN110994751A (en) * | 2019-11-19 | 2020-04-10 | 歌尔股份有限公司 | Vehicle-mounted charging circuit, module, automobile and vehicle-mounted charging system |
| CN112260419A (en) * | 2020-10-13 | 2021-01-22 | 南京和若源电气有限公司 | Wireless power transmission system and start-stop method |
-
2012
- 2012-12-13 CN CN2012206874227U patent/CN202978451U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638695A (en) * | 2013-11-11 | 2015-05-20 | 中兴通讯股份有限公司 | Mobile terminal wireless charging method, transmission panel and device |
| CN105529759A (en) * | 2014-12-05 | 2016-04-27 | 比亚迪股份有限公司 | Wireless charger and charging method therefor |
| CN105529792A (en) * | 2014-12-16 | 2016-04-27 | 比亚迪股份有限公司 | Wireless charging system and wireless charging apparatus |
| CN106356917A (en) * | 2016-08-30 | 2017-01-25 | 于士博 | Wireless charging transmitting device |
| CN107332363A (en) * | 2017-08-21 | 2017-11-07 | 京东方科技集团股份有限公司 | Wireless charging system and its control method |
| CN107332363B (en) * | 2017-08-21 | 2020-08-25 | 京东方科技集团股份有限公司 | Wireless charging system and control method thereof |
| CN108923509A (en) * | 2018-07-06 | 2018-11-30 | 维沃移动通信有限公司 | A kind of wireless charging transmit circuit, wireless charging receive circuit and method |
| US12107439B2 (en) | 2018-07-06 | 2024-10-01 | Vivo Mobile Communication Co., Ltd. | Wireless charging transmitting circuit, wireless charging receiving circuit, and method |
| CN110994751A (en) * | 2019-11-19 | 2020-04-10 | 歌尔股份有限公司 | Vehicle-mounted charging circuit, module, automobile and vehicle-mounted charging system |
| CN112260419A (en) * | 2020-10-13 | 2021-01-22 | 南京和若源电气有限公司 | Wireless power transmission system and start-stop method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |