CN203537079U - Wireless charging receiving device - Google Patents
Wireless charging receiving device Download PDFInfo
- Publication number
- CN203537079U CN203537079U CN201320670479.0U CN201320670479U CN203537079U CN 203537079 U CN203537079 U CN 203537079U CN 201320670479 U CN201320670479 U CN 201320670479U CN 203537079 U CN203537079 U CN 203537079U
- Authority
- CN
- China
- Prior art keywords
- receiving
- wireless charging
- frequency
- antenna
- charging
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 3
- 230000005674 electromagnetic induction Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a wireless charging receiving device. The device is disposed inside a wireless charging device and comprises two or more wireless charging receiving terminals and two or more detection units respectively in correspondence with the receiving terminals, a comparison unit and a control unit. When the wireless charging device is disposed at a transmitting terminal for charging, the detection units in connection with output interfaces of the receiving terminals respectively detect output currents of all the receiving terminals The comparison unit in connection with the detection unit compares the current size of all the output currents and outputs the comparison results to the control unit. The control unit determines the receiving terminal where the output interface having the maximum current is disposed to be a receiving terminal for wireless charging. The receiving device is used for allowing a mobile device to automatically detect charging through a plurality of wireless charging methods, and a mobile terminal device user improves usage experience for wireless charging.
Description
Technical Field
The present disclosure relates to wireless charging technologies, and more particularly, to a wireless charging receiver.
Background
The wireless charging technology adopts a technology of charging equipment in a wireless transmission mode without the help of wire connection. Currently, the mainstream wireless charging technology includes three modes, namely electromagnetic induction, radio waves and magnetic resonance. Wherein,
the principle of electromagnetic induction charging is as follows: the electromagnetic induction energy transfer device mainly comprises an electromagnetic induction sending end and a receiving end, wherein the sending end generates alternating current with certain frequency in a primary coil after being connected with a power supply, and generates certain current in a secondary coil of the receiving end through electromagnetic induction, so that energy is transferred from the sending end to the receiving end.
The principle of radio wave charging is as follows: the microwave power supply mainly comprises a microwave transmitting end and a microwave receiving end, can capture the radio wave energy rebounded from a wall, and keeps stable direct-current voltage of the receiving end while adjusting along with a secondary coil of a load.
The wireless charging principle of the magnetic resonance mode is as follows: the magnetic resonance energy conversion device mainly comprises an energy transmitting end and an energy receiving end, when the transmitting end and the receiving end are adjusted to the same frequency or generate resonance at a specific frequency, electric energy is received through a secondary coil, and mutual energy can be exchanged by utilizing the magnetic resonance.
In the wireless charging solution on the current market, wireless charging is divided into a receiving coil, a matching circuit and an energy conversion circuit at a receiving end. The current three wireless charging standards mainly have three frequency ranges, and the frequency range of the Qi standard is as follows: the frequency range of 100K-205 KHz, Power Matters Alliance (PMA) standard is: 250K-400 KHz, the frequency range of the Alliance for Wireless Power (A4 WP) standard is as follows: 6.78 MHz.
At present, a mobile device can only support a wireless charging mode, if a sending end of a wireless charger used by a user and a receiving end of the mobile device adopt different charging modes, the mobile device cannot be charged, so that the mobile device can only be charged under the condition that the wireless charging modes are the same according to various wireless charging modes, and user experience is influenced.
Disclosure of Invention
In order to solve the problem, the utility model provides a receiving arrangement that wireless charges, through the utility model discloses the device can realize to the arbitrary wireless transmitting terminal that charges, and the receiving arrangement of mobile device can all carry out the electric energy and receive to realize wireless charging.
In order to achieve the utility model discloses a purpose, this application provides a wireless receiving arrangement who charges sets up in wireless charging equipment, including the wireless receiving terminal that charges more than two or two, still include more than two or two, respectively with the detecting element of receiving terminal one-to-one, comparing unit and the control unit:
when the wireless charging device is placed at the transmitting end for charging,
the detection unit is connected with the output interfaces of the receiving ends and respectively detects the output current of each receiving end;
the comparison unit is connected with the detection unit and is used for comparing the magnitude of each output current and outputting the comparison result to the control unit;
the control unit determines the receiving end where the output interface with the maximum output current is located as the receiving end of the current wireless charging.
Further, each receiving end includes: the device comprises a receiving antenna, a matching circuit and an energy conversion circuit.
Further, the receiving antenna is:
a multi-frequency antenna coil; or,
an antenna coil containing a plurality of frequency ranges.
Further, each receiving end includes: a matching circuit and an energy conversion circuit.
Further, the receiving apparatus further includes: a multi-frequency antenna coil; or, two or more antenna coils corresponding to the receiving end one by one and including different frequency ranges.
Further, an antenna feed point for adjusting the reception frequency of the multi-frequency antenna coil is provided in the antenna coil.
The utility model provides a wireless receiving arrangement that charges, a wireless receiving arrangement that charges set up in wireless charging equipment, including the wireless receiving terminal that charges more than two or two, still include more than two or two, respectively with the detecting element of receiving terminal one-to-one, comparing unit and the control unit: when the wireless charging equipment is placed at a sending end for charging, the detection unit connected to the output interface of the receiving end respectively detects the output current of each receiving end; the comparison unit is connected with the detection unit and is used for comparing the magnitude of each output current and outputting the comparison result to the control unit; the control unit determines the receiving end where the output interface with the maximum output current is located as the receiving end of the current wireless charging. Through the utility model discloses realize that mobile device charges through the sending terminal automated inspection of multiple wireless charging mode, improve the mobile terminal user and experience the use of wireless charging.
Drawings
The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.
Fig. 1 is a structure diagram of a wireless charging receiving device of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Fig. 1 is the utility model relates to a wireless receiving arrangement structure of charging, as shown in fig. 1, a wireless receiving arrangement who charges sets up in wireless charging equipment, its characterized in that, including the wireless receiving terminal that charges more than two or two, still include more than two or two, respectively with the detecting element of receiving terminal one-to-one, comparing element and the control unit:
when the wireless charging device is placed at the transmitting end for charging,
and the detection unit is connected with the output interface of the receiving end and respectively detects the output current of each receiving end. The current detection chip can be adopted, or the analog current is converted into a digital signal through a numerical value comparison method and the like, or a resistor with a small resistance value is connected in series in the charging circuit to form voltage drop, and the current is calculated through a voltage detection circuit of a common mobile device. And only when the sending end and the receiving end are in the same wireless charging mode, a large current is generated, but not in the corresponding wireless charging mode, the charging current is small, and the current value is easy to distinguish.
The comparison unit is connected with the detection unit and is used for comparing the magnitude of each output current and outputting the comparison result to the control unit;
the control unit determines the receiving end where the output interface with the maximum output current is located as the receiving end of the current wireless charging. The receiving end corresponding to the output interface is determined to be a wireless charging receiving end, the implementation principle of the wireless charging receiving end is similar to that of the assignment switch, and the control unit assigns the receiving end to be 1, so that the receiving device is switched on.
Each receiving end all includes: the device comprises a receiving antenna, a matching circuit and an energy conversion circuit. Then the receiving antenna at the receiving end is: a multi-frequency antenna coil; or an antenna coil containing multiple frequency ranges.
When each receiving end of the receiving apparatus includes: a matching circuit and an energy conversion circuit. The receiving apparatus further includes: a multi-frequency antenna coil; or, two or more antenna coils corresponding to the receiving end one by one and including different frequency ranges.
An antenna feed point for adjusting the receiving frequency of the multi-frequency antenna coil is arranged in the antenna coil. Frequency adjustment is performed through an antenna feed point using a multi-frequency antenna coil. The antenna feeding point is usually implemented by a digital, analog, or logic circuit switch, and the purpose is to adjust the number of turns of the antenna coil to change the frequency of the coil, and the adjustment of the frequency is implemented by controlling the digital, analog, or logic circuit switch through software or hardware, which is not described herein.
It should be added that after the receiving end of the wireless charging is determined, the detecting unit is fixedly connected to the determined receiving end of the wireless charging mode, if each receiving end adopts a multi-frequency antenna or a group of antennas containing different frequencies, the detecting unit can also detect the receiving end output current of each frequency of the receiving end by adjusting the frequency of the receiving antenna and determine the charging frequency with the maximum output current; and the control unit is also used for setting the charging frequency of the current wireless charging receiving end according to the charging frequency with the maximum output current. At present, three main standards for wireless charging specify the charging frequency used, which are respectively as follows: charging frequency corresponding to Qi standard: 100K-205 KHz, charging frequency corresponding to PMA standard: 250K-400 KHz, charging frequency corresponding to A4WP standard: 6.78 MHz. Within each standard, there may also be multiple configurations with different frequencies, for example, the current Qi standard specifies 18 wirelessly charged transmit configurations that use fixed frequencies, or a segment of frequencies. Therefore, the antenna frequency of the receiving antenna of the receiving end is the same as the antenna frequency of the transmitting antenna of the transmitting end or the optimal charging frequency is obtained by adjusting the frequency again. Therefore, the working efficiency of wireless charging can be improved.
The utility model discloses the method is when in general work life, if only carry out wireless charging with a wireless transmitting terminal that charges, the utility model discloses the device can directly confirm the receiving terminal to charge through manual mode.
Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (6)
1. The utility model provides a receiving arrangement that wireless charges, sets up in wireless charging equipment, its characterized in that, includes two or more than two wireless receiving terminals that charge, still includes two or more than two, respectively with the receiving terminal one-to-one detecting element, comparing element and the control unit:
when the wireless charging device is placed at the transmitting end for charging,
the detection unit is connected with the output interfaces of the receiving ends and respectively detects the output current of each receiving end;
the comparison unit is connected with the detection unit and is used for comparing the magnitude of each output current and outputting the comparison result to the control unit;
the control unit determines the receiving end where the output interface with the maximum output current is located as the receiving end of the current wireless charging.
2. The receiving apparatus according to claim 1, wherein each of the receiving ends comprises: the device comprises a receiving antenna, a matching circuit and an energy conversion circuit.
3. The receiving device of claim 2, wherein the receiving antenna is:
a multi-frequency antenna coil; or,
an antenna coil containing a plurality of frequency ranges.
4. The receiving apparatus according to claim 1, wherein each of the receiving ends comprises: a matching circuit and an energy conversion circuit.
5. The receiving apparatus according to claim 4, wherein the receiving apparatus further comprises: a multi-frequency antenna coil; or, two or more antenna coils corresponding to the receiving end one to one and including different frequency ranges.
6. A receiving device according to claim 3 or 5, wherein an antenna feed point for adjusting the receiving frequency of the multi-frequency antenna coil is provided in the antenna coil.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670479.0U CN203537079U (en) | 2013-10-29 | 2013-10-29 | Wireless charging receiving device |
| PCT/CN2014/080497 WO2015062289A1 (en) | 2013-10-29 | 2014-06-23 | Receiving apparatus for wireless charging and wireless charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670479.0U CN203537079U (en) | 2013-10-29 | 2013-10-29 | Wireless charging receiving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203537079U true CN203537079U (en) | 2014-04-09 |
Family
ID=50423253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320670479.0U Expired - Lifetime CN203537079U (en) | 2013-10-29 | 2013-10-29 | Wireless charging receiving device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203537079U (en) |
| WO (1) | WO2015062289A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015062289A1 (en) * | 2013-10-29 | 2015-05-07 | 中兴通讯股份有限公司 | Receiving apparatus for wireless charging and wireless charging method |
| CN104659499B (en) * | 2015-02-28 | 2017-07-25 | 西安电子科技大学 | A kind of multi-frequency band radio-frequency energy capturing systems |
| CN107591852A (en) * | 2016-07-08 | 2018-01-16 | 财团法人多次元智能It融合系统 | The wireless charging system based on multifrequency for the charging of remote and near radio |
| CN108347101A (en) * | 2017-01-22 | 2018-07-31 | 立锜科技股份有限公司 | Multi-mode radio power supply receiving circuit and its control method |
| CN111404288A (en) * | 2020-04-30 | 2020-07-10 | 维沃移动通信有限公司 | Wireless charging equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330230B (en) * | 2008-04-23 | 2011-08-24 | 深圳大学 | Wireless power supply system and method |
| US8497658B2 (en) * | 2009-01-22 | 2013-07-30 | Qualcomm Incorporated | Adaptive power control for wireless charging of devices |
| CN102714430A (en) * | 2009-11-19 | 2012-10-03 | 捷通国际有限公司 | Multiple use wireless power systems |
| CN202513644U (en) * | 2012-03-23 | 2012-10-31 | 力新创展电子（香港）有限公司 | Portable system capable of achieving wireless charging |
| CN202960456U (en) * | 2012-11-30 | 2013-06-05 | 温州医学院眼视光器械有限公司 | Wireless charging handheld slit lamp |
| CN203537079U (en) * | 2013-10-29 | 2014-04-09 | 中兴通讯股份有限公司 | Wireless charging receiving device |
-
2013
- 2013-10-29 CN CN201320670479.0U patent/CN203537079U/en not_active Expired - Lifetime
-
2014
- 2014-06-23 WO PCT/CN2014/080497 patent/WO2015062289A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015062289A1 (en) * | 2013-10-29 | 2015-05-07 | 中兴通讯股份有限公司 | Receiving apparatus for wireless charging and wireless charging method |
| CN104659499B (en) * | 2015-02-28 | 2017-07-25 | 西安电子科技大学 | A kind of multi-frequency band radio-frequency energy capturing systems |
| CN107591852A (en) * | 2016-07-08 | 2018-01-16 | 财团法人多次元智能It融合系统 | The wireless charging system based on multifrequency for the charging of remote and near radio |
| CN108347101A (en) * | 2017-01-22 | 2018-07-31 | 立锜科技股份有限公司 | Multi-mode radio power supply receiving circuit and its control method |
| CN111404288A (en) * | 2020-04-30 | 2020-07-10 | 维沃移动通信有限公司 | Wireless charging equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015062289A1 (en) | 2015-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |