CN103812149A - Wireless charging device, charging system and charging method - Google Patents
Wireless charging device, charging system and charging method Download PDFInfo
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- CN103812149A CN103812149A CN201210444524.0A CN201210444524A CN103812149A CN 103812149 A CN103812149 A CN 103812149A CN 201210444524 A CN201210444524 A CN 201210444524A CN 103812149 A CN103812149 A CN 103812149A
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Abstract
The invention provides a wireless charging device, a charging system and a charging method. The wireless charging device comprises a transmitting coil group, a current detection circuit, a controller and a drive unit, wherein the current detection circuit detects an average current value of all transmitting coils in real time, and sends the average current value to the controller; the controller judges the position and the shape of power receiving equipment according to received average current value, and generates a corresponding drive signal to be sent to the drive unit; and the drive unit drives a transmitting coil corresponding to the position and the shape of the power receiving equipment to perform power transmission on the power receiving equipment, thereby effectively improving charging efficiency, the structure is simple, and the practicability is high.
Description
Technical field
The present invention relates to a kind of wireless charging technology, relate in particular to a kind of wireless charging device, charging system and charging method.
Background technology
At present increasing electronic equipment brings into use the mode of wireless charging charge or power, and this makes user can break away from wired constraint in using product, convenient.
Available technology adopting is wireless charging (power supply) technology more widely, be all by way of electromagnetic induction, but this mode exists some problems: if the position of transmitting coil and receiving coil can not accurately coincide, power supplying efficiency can significantly reduce; If there is foreign matter between transmitting coil and receiving coil, charging device there will be the problem of heating.
Summary of the invention
For the problem that solves transmitting coil in existing wireless charging technology and receiving coil is misfitted or the charge efficiency that exists foreign matter to cause is low, the invention provides a kind of wireless charging device, charging system and charging method, can effectively improve charge efficiency.
A kind of wireless charging device, comprising:
Transmitting winding group, comprises and is multiple transmitting coils that reservation shape is arranged;
Current detection circuit, for detecting in real time the average current value of each transmitting coil, and sends to controller by average current value;
Controller, for according to the average current value receiving, judges position and the shape of power receiving equipment, and the corresponding signal that drives of generation sends to driver element;
Driver element, carries out electric power transfer for the transmitting coil that drives corresponding power receiving equipment position and shape to power receiving equipment.
A kind of wireless charging system, comprises one or more power receiving equipments and above-mentioned wireless charging device, and power receiving equipment comprises:
Multiple receiving coils, for responding to and be coupled as power receiving equipment and charge with transmitting coil.
A kind of wireless charging method, utilizes above-mentioned wireless charging device to charge for power receiving equipment, and described method comprises:
In the time that multiple transmitting coils surface is placed with power receiving equipment, current detection circuit detects respectively the average current value of each transmitting coil, and average current value is sent to controller;
Controller, according to the average current value receiving, is determined position and the shape of power receiving equipment;
Controller is according to determining that result generates control signal and sends to driver element;
It is that power receiving equipment carries out electric power transfer that driver element drives the transmitting coil of corresponding power receiving equipment position and shape according to control signal.
Wireless charging device provided by the invention, charging system and charging method, by detecting position and the shape of power receiving equipment, control transmitting coil and charge according to the shape of corresponding power receiving equipment, effectively improves charge efficiency, and simple in structure, practicality is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of wireless charging device provided by the invention.
Fig. 2 is the structural representation of a kind of embodiment of wireless charging system provided by the invention.
Fig. 3 a is the schematic layout pattern of transmitting coil in a kind of embodiment of wireless charging system provided by the invention.
Fig. 3 b is the schematic layout pattern of receiving coil in a kind of embodiment of wireless charging system provided by the invention.
Fig. 4 is the flow chart of a kind of embodiment of wireless charging method provided by the invention.
Embodiment
Embodiments of the invention are described with reference to the accompanying drawings.The element of describing in an accompanying drawing of the present invention or a kind of execution mode and feature can combine with element and feature shown in one or more other accompanying drawings or execution mode.It should be noted that in order to know object, in accompanying drawing and explanation, omitted expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and processing.
Wireless charging device embodiment:
As shown in Figure 1, a kind of wireless charging device, comprising:
Transmitting winding group, comprises and is multiple transmitting coils 101 that reservation shape is arranged;
Particularly, transmitting coil 101 is electromagnetic induction coil, and shape can be circular or square, can set according to the market demand, the shape of transmitting coil 101 should with power receiving equipment in the shape of receiving coil match.
The average current value that controller 103 received current testing circuits 102 send, and this average current value is compared with predetermined current value, predetermined current value can be set as required voluntarily, usually, predetermined current value is less than transmitting coil and the current value while coupling occurs to respond to receiving coil, in the time that the average current value detecting is greater than predetermined current value, think that this transmitting coil position is the position of power receiving equipment to the receiving coil of corresponding power receiving equipment of transmitting coil 101 that should average current value.
When detecting that a transmitting coil 101 is to there being power receiving equipment, detect the average current value of each transmitting coil adjacent with this transmitting coil, in the time that the average current value detecting is greater than predetermined current value, think that the region that the transmitting coil of all corresponding power receiving equipments surrounds is the shape of power receiving equipment to the receiving coil of corresponding power receiving equipment of transmitting coil 101 that should average current value.
Alternatively, controller 103 can adopt single-chip microcomputer or PLC.
Alternatively, multiple transmitting coils 101 can adopt honeycomb fashion to arrange or matrix is arranged, and arranging density can be set according to actual service condition.
The wireless charging device that the present embodiment provides, by detecting position and the shape of power receiving equipment, controlling transmitting coil charges according to the shape of corresponding power receiving equipment, can effectively solve transmitting coil and receiving coil and misfit the low problem of charge efficiency of also powering and causing, and between transmitting coil and receiving coil, there is foreign matter also to power to cause the problem of heating, effectively improve charge efficiency.
Wireless charging system embodiment:
As shown in Figure 2, wireless charging system provided by the invention, comprises wireless charging device A and power receiving equipment B, and power receiving equipment B can be one or more.
Wireless charging device A comprises multiple transmitting coils 201, current detection circuit 202, controller 203 and driver element 204, and structure and the principle of wireless charging device A are same as the previously described embodiments, are not repeating at this.
Power receiving equipment B comprises multiple receiving coils 205, when receiving coil 205 and the transmitting coil 201 in wireless charging device A coincide and contact, can respond to the generation electromagnetic energy that is coupled.
In addition, power receiving equipment B also comprises rechargeable battery 206 and electric energy converting unit 207, and the electromagnetic energy of responding to coupling generation when receiving coil 205 and transmitting coil 201 converts electric energy to by electric energy converting unit 207, for rechargeable battery 206 carries out electric power transfer.
Fig. 3 a is the schematic layout pattern of the multiple transmitting coils 201 in wireless charging device A, multiple transmitting coils 201 are matrix and arrange, be numbered respectively: 1,2,3,4,5 ... 49, Fig. 3 b is the structural representation of the receiving coil in power receiving equipment B, multiple receiving coils 205 are irregular alignment, number respectively u, v, w, x, y, z.
Power receiving equipment B is placed on to the surface of transmitting coil, when being numbered coincide corresponding with the transmitting coil that is numbered 17 of receiving coil of u, the average current value that is numbered 17 transmitting coil is greater than predetermined current value, when detecting that the average current value of the transmitting coil that is numbered 17 is greater than predetermined current value, think and be numbered 17 position corresponding to transmitting coil and be the position at power receiving equipment B place, controller 203 generates and drives signal to send to driver element 204 to drive to be numbered 17 transmitting coil to carry out electric power transfer accordingly, expand afterwards a circle and detect, detect and adjacent be numbered 9, 10, 11, 16, 18, 23, 24, the average current value of 25 transmitting coil, is numbered 18 when detecting, when the average current value of 25 transmitting coil is greater than predetermined current value, controller 203 is controlled and is driven the transmitting coil that is numbered a to carry out electric power transfer, expanding afterwards a circle detects again, by that analogy, until the average current value detecting is less than predetermined current value, the corresponding region of transmitting coil that average current value is greater than predetermined current value is the shape of power receiving equipment, is numbered 17, 18, 19, 20, 25, 26 transmitting coil.
Power receiving equipment B can be placed on arbitrarily transmitting coil surface, if be only numbered in power receiving equipment B, the receiving coil of u, v, w is corresponding with transmitting coil coincide, and 203 of controllers drive the transmitting coil of corresponding u, v, w to carry out electric power transfer.
Power receiving equipment is charged when wireless charging device detects power receiving equipment, the quantity of transmitting coil is far longer than the quantity of receiving coil, therefore can charge to multiple power receiving equipments simultaneously.
In addition, power receiving equipment B also comprises display unit 208, for showing in the time that transmitting coil 201 produces induction coupling with receiving coil 205, so that learning this wireless charging system, user normally works, if transmitting coil 201 does not produce induction coupling with receiving coil 205, wireless charging device does not detect the position of power receiving equipment, the position of user's capable of regulating power receiving equipment B.
The wireless charging system that the present embodiment provides, adopt wireless charging device, can charge to one or more power receiving equipments simultaneously, and the shape of power receiving equipment is unrestricted, power receiving equipment can be placed on arbitrarily transmitting coil surface, can, by detecting position and the shape of power receiving equipment, control transmitting coil and charge according to the shape of corresponding power receiving equipment, improve to greatest extent charge efficiency.
Wireless charging method embodiment:
As shown in Figure 4, adopting wireless charging device is power receiving equipment charging, and the method comprises:
Step S101: while being placed with power receiving equipment on multiple transmitting coils surface, current detection circuit detects respectively the average current value of each transmitting coil, and average current value is sent to controller;
Step S102: controller, according to the average current value receiving, is determined position and the shape of power receiving equipment;
Step S103: controller is according to determining that result generates control signal and sends to driver element;
Step S104: it is that power receiving equipment carries out electric power transfer that driver element drives the transmitting coil of corresponding power receiving equipment position and shape according to described control signal.
Particularly, the method that judges power receiving equipment position specifically comprises:
The average current value of each transmitting coil and predetermined current value are compared, and when average current value is greater than predetermined current value, the position that this transmitting coil is corresponding is the position of power receiving equipment.
Usually, predetermined current value is less than transmitting coil and the current value while coupling occurs to respond to receiving coil, in the time that the average current value detecting is greater than predetermined current value, think that this transmitting coil position is the position of power receiving equipment to the receiving coil of corresponding power receiving equipment of transmitting coil that should average current value.
The method that judges the shape of power receiving equipment comprises:
When detecting that one of them transmitting coil is to there being power receiving equipment, detect the average current value of the transmitting coil adjacent with this transmitting coil, the corresponding region of transmitting coil that average current value is greater than predetermined current value is the shape of power receiving equipment.
Controller generates corresponding control signal and sends to driver element, the transmitting coil of the corresponding power receiving equipment position of drive unit drives and shape, corresponding transmitting coil and the receiving coil of power receiving equipment produce induction coupling, produce electromagnetic energy, electromagnetic energy converts electric energy to by electric energy converting unit, for the rechargeable battery in power receiving equipment charges.
When detecting that power receiving equipment charges to power receiving equipment, the quantity of transmitting coil is far longer than the quantity of receiving coil, therefore can charge to multiple power receiving equipments simultaneously.
Current detection circuit detects respectively the average current value of each transmitting coil according to level, vertical or Z-shaped direction, as shown in Figure 3 a, detection order can be according to transmitting coil numbering 1-7,8-14 ... horizontal direction sequence detection, also can number 1,8 according to transmitting coil ... 43 the straight sequence detection of vertical direction, can also number 1-7 according to transmitting coil, 13,19 ... the Z-shaped direction order of 43,44-49 detects.
In addition,, in the time the position of power receiving equipment not detected, adjust the position of described power receiving equipment and carry out again step S101.
Power receiving equipment also comprises display unit, be used for showing in the time of transmitting coil and receiving coil generation induction coupling, so that learning this wireless charging system, user normally works, if transmitting coil and receiving coil do not produce induction coupling, wireless charging device does not detect the position of power receiving equipment, the position of user's capable of regulating power receiving equipment, carries out step S101 after adjusting again.
The wireless charging method that the present embodiment provides, can charge to one or more power receiving equipments simultaneously, and the shape of power receiving equipment is unrestricted, power receiving equipment can be placed on arbitrarily transmitting coil surface, by detecting position and the shape of power receiving equipment, controlling transmitting coil charges according to the shape of corresponding power receiving equipment, can effectively solve transmitting coil and receiving coil and misfit the low problem of charge efficiency of also powering and causing, and between transmitting coil and receiving coil, there is foreign matter also to power to cause the problem of heating, effectively improve charge efficiency.
Although described the present invention and advantage thereof in detail, be to be understood that in the case of not exceeding the spirit and scope of the present invention that limited by appended claim and can carry out various changes, alternative and conversion.And the application's scope is not limited only to the specific embodiment of the described process of specification, equipment, means, method and step.One of ordinary skilled in the art will readily appreciate that from disclosure of the present invention, can use carry out with the essentially identical function of corresponding embodiment described herein or obtain process, equipment, means, method or step result essentially identical with it, that existing and will be developed future according to the present invention.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (10)
1. a wireless charging device, is characterized in that, comprising:
Transmitting winding group, comprises and is multiple transmitting coils that reservation shape is arranged;
Current detection circuit, for detecting in real time the average current value of each transmitting coil, and sends to controller by described average current value;
Controller, for according to the average current value receiving, judges position and the shape of power receiving equipment, and the corresponding signal that drives of generation sends to driver element;
Driver element, carries out electric power transfer for the transmitting coil that drives corresponding power receiving equipment position and shape to power receiving equipment.
2. wireless charging device according to claim 1, is characterized in that, described multiple transmitting coils are matrix arrangement or honeycomb fashion is arranged.
3. a wireless charging system, comprises the wireless charging device described in one or more power receiving equipments and claim 1 or 2, it is characterized in that, described power receiving equipment comprises:
Multiple receiving coils, produce electromagnetic energy for responding to coupling with described transmitting coil.
4. wireless charging system according to claim 3, is characterized in that, described power receiving equipment also comprises rechargeable battery and electric energy converting unit, and described electric energy converting unit is that described rechargeable battery carries out electric power transfer for converting described electromagnetic energy to electric energy.
5. wireless charging system according to claim 3, is characterized in that, described multiple receiving coils are matrix arrangement or honeycomb fashion is arranged.
6. wireless charging system according to claim 3, is characterized in that, described power receiving equipment also comprises display unit, shows when producing induction coupling when described transmitting coil and described receiving coil.
7. a wireless charging method, is characterized in that, utilizes wireless charging device described in claim 1 or 2 to charge for power receiving equipment, and described method comprises:
In the time that multiple transmitting coils surface is placed with power receiving equipment, current detection circuit detects respectively the average current value of each transmitting coil, and described average current value is sent to controller;
Controller, according to the average current value receiving, is determined position and the shape of power receiving equipment;
Controller is according to determining that result generates control signal and sends to driver element;
It is that power receiving equipment carries out electric power transfer that described driver element drives the transmitting coil of corresponding power receiving equipment position and shape according to described control signal.
8. wireless charging method according to claim 7, is characterized in that, judges that the method for power receiving equipment position comprises:
The average current value of each transmitting coil and predetermined current value being compared, determine that average current value is greater than the position at the transmitting coil place of predetermined current value, is the position of power receiving equipment.
9. wireless charging method according to claim 8, it is characterized in that, the method that judges the shape of power receiving equipment comprises: when detecting that one of them transmitting coil is to there being power receiving equipment, detect the average current value of the transmitting coil adjacent with this transmitting coil, determining that average current value in described transmitting winding group is greater than the corresponding region of transmitting coil of predetermined current value, is the shape of power receiving equipment.
10. wireless charging method according to claim 7, is characterized in that, described current detection circuit detects respectively the average current value of each transmitting coil according to level, vertical or Z-shaped order.
Priority Applications (1)
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| CN201210444524.0A CN103812149A (en) | 2012-11-09 | 2012-11-09 | Wireless charging device, charging system and charging method |
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| CN201210444524.0A CN103812149A (en) | 2012-11-09 | 2012-11-09 | Wireless charging device, charging system and charging method |
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Cited By (19)
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| CN104362716A (en) * | 2014-12-08 | 2015-02-18 | 联想(北京)有限公司 | Wireless charging method and electronic equipment |
| CN104578349A (en) * | 2015-01-31 | 2015-04-29 | 丰岛电子科技(苏州)有限公司 | Wireless charger and wireless charging system |
| CN104659868A (en) * | 2014-06-05 | 2015-05-27 | 王哲 | Wireless charging functional bag |
| CN104901402A (en) * | 2015-06-03 | 2015-09-09 | 北京有感科技有限责任公司 | Wireless charging system and wireless charging method |
| CN105186617A (en) * | 2015-09-21 | 2015-12-23 | 江苏腾威电子有限公司 | Infrared charging system and infrared charging method |
| CN105429191A (en) * | 2014-09-05 | 2016-03-23 | 纬创资通股份有限公司 | Wireless charging device and wireless charging method |
| CN105529759A (en) * | 2014-12-05 | 2016-04-27 | 比亚迪股份有限公司 | Wireless charger and charging method therefor |
| CN105576846A (en) * | 2016-02-25 | 2016-05-11 | 苏州立感电子科技有限公司 | Wireless charging system and method |
| CN105843353A (en) * | 2016-03-21 | 2016-08-10 | 苏州佳世达电通有限公司 | Wireless charging guidance system and wireless charging guidance device |
| CN106712320A (en) * | 2017-03-06 | 2017-05-24 | 武汉轻工大学 | Wireless charging device based on distributed multi-coil coupling |
| CN107097536A (en) * | 2016-02-22 | 2017-08-29 | 精工爱普生株式会社 | Electronic equipment and posture decision method |
| CN107155384A (en) * | 2014-12-05 | 2017-09-12 | 三菱电机工程技术株式会社 | Mode of resonance power transmission system, dispensing device and power supply position control system |
| CN107204667A (en) * | 2017-06-16 | 2017-09-26 | 宁夏宏海智能科技有限公司 | Intelligent control magnetic field all standing formula wireless charging desk and its method of supplying power to |
| CN108297720A (en) * | 2018-01-08 | 2018-07-20 | 上海理工大学 | Electric vehicle wireless charging localization method |
| CN109631261A (en) * | 2018-12-24 | 2019-04-16 | 广东美的白色家电技术创新中心有限公司 | A kind of fan, humidifier and air handling system |
| CN110040011A (en) * | 2019-04-18 | 2019-07-23 | 浙江吉利控股集团有限公司 | A kind of wireless charging method and control device |
| CN111600398A (en) * | 2019-02-19 | 2020-08-28 | Lg电子株式会社 | Wireless power transmission apparatus and control method thereof |
| CN112491149A (en) * | 2020-12-18 | 2021-03-12 | 上海电机学院 | Box type multi-angle wireless charger and use method |
| US11670972B2 (en) | 2018-09-24 | 2023-06-06 | Apple Inc. | Electronic device having an inductive charging system |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659868A (en) * | 2014-06-05 | 2015-05-27 | 王哲 | Wireless charging functional bag |
| CN105429191A (en) * | 2014-09-05 | 2016-03-23 | 纬创资通股份有限公司 | Wireless charging device and wireless charging method |
| CN105429191B (en) * | 2014-09-05 | 2018-09-14 | 纬创资通股份有限公司 | Wireless charging device and wireless charging method |
| CN107155384A (en) * | 2014-12-05 | 2017-09-12 | 三菱电机工程技术株式会社 | Mode of resonance power transmission system, dispensing device and power supply position control system |
| CN105529759A (en) * | 2014-12-05 | 2016-04-27 | 比亚迪股份有限公司 | Wireless charger and charging method therefor |
| CN104362716A (en) * | 2014-12-08 | 2015-02-18 | 联想(北京)有限公司 | Wireless charging method and electronic equipment |
| CN104578349A (en) * | 2015-01-31 | 2015-04-29 | 丰岛电子科技(苏州)有限公司 | Wireless charger and wireless charging system |
| CN104901402A (en) * | 2015-06-03 | 2015-09-09 | 北京有感科技有限责任公司 | Wireless charging system and wireless charging method |
| CN105186617A (en) * | 2015-09-21 | 2015-12-23 | 江苏腾威电子有限公司 | Infrared charging system and infrared charging method |
| US10291083B2 (en) | 2016-02-22 | 2019-05-14 | Seiko Epson Corporation | Electronic apparatus and orientation determination method |
| CN107097536A (en) * | 2016-02-22 | 2017-08-29 | 精工爱普生株式会社 | Electronic equipment and posture decision method |
| CN107097536B (en) * | 2016-02-22 | 2019-01-08 | 精工爱普生株式会社 | Electronic equipment and posture determination method |
| CN105576846A (en) * | 2016-02-25 | 2016-05-11 | 苏州立感电子科技有限公司 | Wireless charging system and method |
| CN105843353A (en) * | 2016-03-21 | 2016-08-10 | 苏州佳世达电通有限公司 | Wireless charging guidance system and wireless charging guidance device |
| CN105843353B (en) * | 2016-03-21 | 2019-05-24 | 苏州佳世达电通有限公司 | Wireless charging guidance system and guiding device |
| CN106712320A (en) * | 2017-03-06 | 2017-05-24 | 武汉轻工大学 | Wireless charging device based on distributed multi-coil coupling |
| CN106712320B (en) * | 2017-03-06 | 2019-04-30 | 武汉轻工大学 | Wireless charging device based on distributed multi-coil coupling |
| CN107204667A (en) * | 2017-06-16 | 2017-09-26 | 宁夏宏海智能科技有限公司 | Intelligent control magnetic field all standing formula wireless charging desk and its method of supplying power to |
| CN108297720A (en) * | 2018-01-08 | 2018-07-20 | 上海理工大学 | Electric vehicle wireless charging localization method |
| US11670972B2 (en) | 2018-09-24 | 2023-06-06 | Apple Inc. | Electronic device having an inductive charging system |
| CN109631261A (en) * | 2018-12-24 | 2019-04-16 | 广东美的白色家电技术创新中心有限公司 | A kind of fan, humidifier and air handling system |
| CN111600398A (en) * | 2019-02-19 | 2020-08-28 | Lg电子株式会社 | Wireless power transmission apparatus and control method thereof |
| CN111600398B (en) * | 2019-02-19 | 2023-11-14 | Lg电子株式会社 | Wireless power transmission apparatus and control method thereof |
| CN110040011A (en) * | 2019-04-18 | 2019-07-23 | 浙江吉利控股集团有限公司 | A kind of wireless charging method and control device |
| CN112491149A (en) * | 2020-12-18 | 2021-03-12 | 上海电机学院 | Box type multi-angle wireless charger and use method |
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Application publication date: 20140521 |
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