CN110601313A - Wireless charger with movable coil - Google Patents
Wireless charger with movable coil Download PDFInfo
- Publication number
- CN110601313A CN110601313A CN201910984477.0A CN201910984477A CN110601313A CN 110601313 A CN110601313 A CN 110601313A CN 201910984477 A CN201910984477 A CN 201910984477A CN 110601313 A CN110601313 A CN 110601313A
- Authority
- CN
- China
- Prior art keywords
- detection
- transmitting coil
- driving
- module
- guide rail
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims abstract description 88
- 230000006698 induction Effects 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 239000010949 copper Substances 0.000 abstract description 6
- 230000005284 excitation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- JAYCNKDKIKZTAF-UHFFFAOYSA-N 1-chloro-2-(2-chlorophenyl)benzene Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1Cl JAYCNKDKIKZTAF-UHFFFAOYSA-N 0.000 description 3
- 101100084627 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) pcb-4 gene Proteins 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000003071 polychlorinated biphenyls Chemical group 0.000 description 2
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
Classifications
-
- 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
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the technical field of wireless charging, in particular to a wireless charger with a movable coil, which comprises: the detection component is used for detecting the position of a receiving coil of a device to be charged and forming a detection signal, and comprises a plurality of induction coils which are crossed to form a detection area corresponding to the charging area; the driving part is connected with a transmitting coil and is used for moving the position of the transmitting coil; the control part receives the detection signal fed back by the detection part, calculates the position of the receiving coil according to the detection signal and forms a control signal, and the driving part moves the transmitting coil to the position corresponding to the receiving coil according to the control signal; the control part is a PCB board, and the transmitting coil is welded on the PCB board. Has the advantages that: the plurality of induction coils of the detection part are distributed in a crossed manner, so that copper laying in a detection area is reduced, and the charging efficiency is improved; the transmitting coil is directly welded on the PCB, so that the internal resistance of the transmitting coil is reduced.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a wireless charger with a movable coil.
Background
With the rapid development of wireless charging technology, the use of wireless chargers is more and more common, and wireless chargers may be used for electronic devices such as mobile phones, tablet computers, digital cameras and the like. The wireless charger is a device which utilizes the principle of electromagnetic induction to charge, the principle is that a coil is respectively arranged at a transmitting end and a receiving end, the coil of the transmitting end sends out electromagnetic signals to the outside under the action of electric power, and the coil of the receiving end receives the electromagnetic signals and converts the electromagnetic signals into current, so that the purpose of wireless charging is achieved. Therefore, the relative positions of the transmitting-side coil and the receiving-side coil greatly affect the efficiency of charging.
In the existing wireless charger, the position of the transmitting end coil in the wireless charger is relatively fixed, and the wireless charger cannot automatically adapt to the position of the receiving end coil, so that a detection component needs to be additionally arranged to detect the position of the receiving end coil, and an MCU (Micro-controller Unit) adjusts the position of the transmitting end coil according to the position of the receiving end coil. The existing wireless charger still has the following problems: (1) the problem that the efficiency of wireless charging is affected by the copper laying in the detection area is more, as shown in fig. 1, the detection part is usually arranged on the back of the charging area, the detection part comprises a detection area formed by sequentially arranging a plurality of induction coils, and the copper laying area is larger; (2) the PCB and the transmitting coil need to be connected through a long FPC (Flexible Printed Circuit), so that the internal resistance of the transmitting coil is increased, the charging time of the transmitting coil is increased due to serious heating of the transmitting coil, and meanwhile, the packet loss probability is increased during communication due to the fact that the distance between the transmitting coil and the PCB is increased, and therefore the wireless charger stops charging.
Disclosure of Invention
In view of the above problems in the prior art, a wireless charger with a movable coil is provided.
The specific technical scheme is as follows:
the invention relates to a wireless charger with a movable coil, which comprises:
the detection component is used for detecting the position of a receiving coil of a device to be charged and forming a detection signal, and comprises a plurality of induction coils which are crossed to form a detection area corresponding to the charging area;
the driving part is connected with a transmitting coil and is used for moving the position of the transmitting coil;
the control component is respectively connected with the transmitting coil, the detection component and the driving component, receives the detection signal fed back by the detection component, calculates the position of the receiving coil according to the detection signal and forms a control signal, and the driving component moves the transmitting coil to the position corresponding to the receiving coil according to the control signal;
the control component is a PCB board, and the transmitting coil is welded on the PCB board, so that the PCB board and the transmitting coil form an integral movable wireless charging module.
Preferably, the control means includes:
the control component is connected with the detection component through the detection processing module, and the detection processing module is used for processing the detection signal fed back by the detection component;
the operation module is connected with the detection processing module and used for calculating the position of the receiving coil according to the processed detection signal;
the driving module is connected with the operation module, the control part is connected with the driving part through the driving module, and the control module is used for forming a control signal according to the operation result of the operation module and sending the control signal to the driving part;
and the control component is connected with the transmitting coil through the charging control module and is used for starting the transmitting coil after the operation result output by the operation module shows that the transmitting coil and the receiving coil are positioned so as to charge the equipment to be charged.
Preferably, the detection processing module includes an operational amplifier for amplifying the detection signal.
Preferably, the driving part includes:
the wireless charging module is movably arranged on the guide rail;
the two ends of the guide rail are respectively arranged on a pair of parallel sliding rods, and the guide rail can move on the pair of sliding rods.
Preferably, the driving part further includes:
the first driving unit is connected with the wireless charging module and used for driving the wireless charging module to move on the guide rail;
and the second driving unit is connected with the guide rail and is used for driving the guide rail to move on the pair of slide bars.
Preferably, the first driving unit includes a gear and a first motor, the edge of the guide rail is provided with a saw tooth engaged with the gear, and the first motor is used for driving the gear to rotate so as to drive the wireless charging module to move on the guide rail.
Preferably, the second driving unit includes a transmission belt and a second motor, the transmission belt is disposed below the guide rail and contacts with the lower surface of the guide rail, and the second motor is used for driving the transmission belt, so that the transmission belt drives the guide rail to move on the pair of slide bars.
The technical scheme of the invention has the beneficial effects that: the plurality of induction coils of the detection part are distributed in a crossed manner, so that copper laying in a detection area is reduced, and the charging efficiency is improved; the transmitting coil is directly welded on the PCB, FPC connection is not used, internal resistance of the transmitting coil is reduced, heating of the transmitting coil is reduced, meanwhile, the packet loss probability of the transmitting coil and the PCB during communication is reduced, and the stability of the wireless charger is improved.
Drawings
Embodiments of the present invention will be described more fully with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and are not restrictive of the scope of the invention.
FIG. 1 is a schematic diagram of a prior art sensing assembly;
FIG. 2 is a schematic structural diagram of a wireless charger according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a detecting unit according to an embodiment of the present invention;
fig. 4 is a schematic block diagram of a wireless charger in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The present invention includes a wireless charger with a movable coil, as shown in fig. 4, including:
the detection component 1 is used for detecting the position of a receiving coil of a device to be charged and forming a detection signal, and the detection component 1 comprises a plurality of induction coils which are crossed to form a detection area corresponding to the charging area;
a driving part 2 connected with a transmitting coil 3, wherein the driving part 2 is used for moving the position of the transmitting coil 3;
the control part 4 is respectively connected with the transmitting coil 3, the detection part 1 and the driving part 2, the control part 4 receives a detection signal fed back by the detection part, calculates the position of the receiving coil according to the detection signal and forms a control signal, and the driving part moves the transmitting coil 3 to the position corresponding to the receiving coil according to the control signal;
the control component is a PCB board, and the transmitting coil 3 is welded on the PCB board 4, so that the PCB board 4 and the transmitting coil 3 form an integral movable wireless charging module.
Specifically, in the present embodiment, as shown in fig. 3, the detection unit includes a plurality of induction coils distributed in a cross manner, a plurality of induction coils are disposed in both the X direction and the Y direction of the detection area, for example, X1, X2, X3, X4, X5, and X6 are disposed in the X direction, Y1, Y2, Y3, Y4, Y5, and Y6 are disposed in the Y direction, the induction coils in the X direction and the induction coils in the Y direction cross each other perpendicularly to form the detection area, and the induction coils may be arranged in an overlapping manner according to the requirement of detection accuracy.
Specifically, the process of detecting the position of the receiving coil includes: the control part sequentially sends detection excitation signals, such as 3.3V/50 KHz/3% + duty (duty ratio), to the induction coil in the X direction, and the detection excitation signals are sent out and then delayed for a period of time to form echo signals in the X direction; the control part sequentially sends detection excitation signals, such as 3.3V/50 KHz/3% + duty, to the induction coil in the Y direction, and delays for a period of time after sending the detection excitation signals to form echo signals in the Y direction; the echo signal in the X direction and the return signal in the Y direction form a detection signal, the control part calculates the current position of a receiving coil of the device to be charged by calculating the detection signal, and then controls the transmitting coil to transmit the current position of the receiving coil, so that the positioning of the transmitting coil and the receiving coil is completed. The control part 4 accurately judges the position of the receiving coil by receiving the magnitude of the detection signal fed back by the induction coil. In comparison, compared with the detection component in fig. 1, the detection component in this embodiment can effectively reduce the area of copper paving, and improve the charging performance of the wireless charger.
Specifically, in this embodiment, as shown in fig. 2, the transmitting coil 3 is directly welded on the PCB 4, so that the PCB 4 and the transmitting coil 3 form an integral movable wireless charging module, and the FPC is not used for connection, thereby reducing the internal resistance of the transmitting coil, reducing the heat generation of the transmitting coil, and at the same time, reducing the packet loss probability when the transmitting coil communicates with the PCB, and improving the stability of the wireless charger.
In a preferred embodiment, as shown in fig. 4, the control unit 4 comprises:
the detection processing module 401, the control component 4 is connected with the detection component 1 through the detection processing module 401, and the detection processing module 401 is used for processing the detection signal fed back by the detection component;
the operation module 402 is connected with the detection processing module 401 and used for calculating the position of the receiving coil according to the processed detection signal;
the driving module 403 is connected with the operation module 402, and the control component 4 is connected with the driving component 2 through the driving module 403, and is used for forming a control signal according to the operation result of the operation module 402 and sending the control signal to the driving component 2;
and the charging control module 404 is respectively connected with the operation module 402 and the transmitting coil 3, and the control component 4 is connected with the transmitting coil 3 through the charging control module 404, and is used for starting the transmitting coil 3 after the operation result output by the operation module 402 indicates that the transmitting coil 3 and the receiving coil are positioned, so as to charge the device to be charged.
Specifically, the control component 4 is a PCB board, and a plurality of functional modules are integrated on the PCB board, and mainly include a detection processing module 401, an operation module 402, a driving module 403, and a charging control module 404. The detection processing module 401 is configured to process the detection signal, in this embodiment, the detection processing module 401 is an operational amplifier, the detection signal is amplified by a low-noise operational amplifier with a higher bandwidth and then output to a detection pin of the control unit, and the operational module calculates the position of the receiving coil according to the magnitude of the feedback detection signal. The control part sends detection excitation signals (such as 3.3V/50 KHz/3% + duty, but not limited to the signals can be modified according to actual conditions) to each induction coil of the detection part in turn through the analog switch, if a receiving coil for placing equipment to be charged is arranged near the induction coil, the excitation signals can generate echo signals to return back, and the echo signals are stronger when the receiving coil is closer to the detection coil.
In a preferred embodiment, as shown in fig. 2, the drive member 2 comprises:
the wireless charging module is movably arranged on the guide rail 201;
two ends of the guide rail 201 are respectively arranged on a pair of parallel sliding rods 202, and the guide rail can move on the pair of sliding rods 202;
the first driving unit is connected with the wireless charging module and used for driving the wireless charging module to move on the guide rail;
the second driving unit is connected with the guide rail and is used for driving the guide rail to move on the pair of slide bars;
the first driving unit comprises a gear and a first motor, sawteeth meshed with the gear are arranged on the edge of the guide rail, and the first motor is used for driving the gear to rotate so as to drive the wireless charging module to move on the guide rail;
the second driving unit comprises a transmission belt and a second motor, the transmission belt is arranged below the guide rail and contacts with the lower surface of the guide rail, and the second motor is used for driving the transmission belt so that the transmission belt drives the guide rail to move on the pair of slide bars.
Specifically, as shown in fig. 2, the first driving unit is configured to drive the wireless charging module (the transmitting coil 3+ the PCB 4) to slide on the guide rail 201, so as to adjust the position of the transmitting coil in the X direction, and the guide rail 201 can also slide on the pair of sliding rods, so as to drive the wireless charging module to move in the Y direction. By means of the combination of the two drive units, the transmitter coil can be moved arbitrarily in the examination area.
The technical scheme of the invention has the beneficial effects that: the plurality of induction coils of the detection part are distributed in a crossed manner, so that copper laying in a detection area is reduced, and the charging efficiency is improved; the transmitting coil is directly welded on the PCB, FPC connection is not used, internal resistance of the transmitting coil is reduced, heating of the transmitting coil is reduced, meanwhile, the packet loss probability of the transmitting coil and the PCB during communication is reduced, and the stability of the wireless charger is improved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. A coil-movable wireless charger, comprising:
the detection component is used for detecting the position of a receiving coil of a device to be charged and forming a detection signal, and comprises a plurality of induction coils which are crossed to form a detection area corresponding to the charging area;
the driving part is connected with a transmitting coil and is used for moving the position of the transmitting coil;
the control component is respectively connected with the transmitting coil, the detection component and the driving component, receives the detection signal fed back by the detection component, calculates the position of the receiving coil according to the detection signal and forms a control signal, and the driving component moves the transmitting coil to the position corresponding to the receiving coil according to the control signal;
the control component is a PCB board, and the transmitting coil is welded on the PCB board, so that the PCB board and the transmitting coil form an integral movable wireless charging module.
2. The wireless charger according to claim 1, wherein the control means comprises:
the control component is connected with the detection component through the detection processing module, and the detection processing module is used for processing the detection signal fed back by the detection component;
the operation module is connected with the detection processing module and used for calculating the position of the receiving coil according to the processed detection signal;
the driving module is connected with the operation module, the control part is connected with the driving part through the driving module, and the control module is used for forming a control signal according to the operation result of the operation module and sending the control signal to the driving part;
and the control component is connected with the transmitting coil through the charging control module and is used for starting the transmitting coil after the operation result output by the operation module shows that the transmitting coil and the receiving coil are positioned so as to charge the equipment to be charged.
3. The wireless charger according to claim 2, wherein the detection processing module comprises an operational amplifier for amplifying the detection signal.
4. The wireless charger according to claim 1, wherein the driving part comprises:
the wireless charging module is movably arranged on the guide rail;
the two ends of the guide rail are respectively arranged on a pair of parallel sliding rods, and the guide rail can move on the pair of sliding rods.
5. The wireless charger of claim 4, wherein the driving member further comprises:
the first driving unit is connected with the wireless charging module and used for driving the wireless charging module to move on the guide rail;
and the second driving unit is connected with the guide rail and is used for driving the guide rail to move on the pair of slide bars.
6. The wireless charger according to claim 5, wherein the first driving unit comprises a gear and a first motor, the edge of the guide rail is provided with a saw tooth engaged with the gear, and the first motor is used for driving the gear to rotate so as to drive the wireless charging module to move on the guide rail.
7. The wireless charger according to claim 5, wherein the second driving unit comprises a transmission belt and a second motor, the transmission belt is disposed below the guide rail and contacts with a lower surface of the guide rail, and the second motor is configured to drive the transmission belt, so that the transmission belt drives the guide rail to move on the pair of sliding rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984477.0A CN110601313A (en) | 2019-10-16 | 2019-10-16 | Wireless charger with movable coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984477.0A CN110601313A (en) | 2019-10-16 | 2019-10-16 | Wireless charger with movable coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110601313A true CN110601313A (en) | 2019-12-20 |
Family
ID=68867639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910984477.0A Pending CN110601313A (en) | 2019-10-16 | 2019-10-16 | Wireless charger with movable coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110601313A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884360A (en) * | 2020-07-13 | 2020-11-03 | Oppo广东移动通信有限公司 | Wireless charging seat and charging method using same |
| CN112531917A (en) * | 2020-11-23 | 2021-03-19 | 歌尔光学科技有限公司 | Wireless charging receiving device and electronic equipment |
| CN112886723A (en) * | 2021-01-25 | 2021-06-01 | 深圳市威尔丽斯科技有限公司 | Wireless charger capable of automatically positioning charging and implementation method |
| WO2021143342A1 (en) * | 2020-01-17 | 2021-07-22 | 深圳市一讯达科技有限公司 | Wireless charger and wireless charging control method |
| CN117404574A (en) * | 2023-12-15 | 2024-01-16 | 凯晖科技股份有限公司 | Unlimited rotation charging flat plate support |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090153098A1 (en) * | 2007-12-18 | 2009-06-18 | Shoichi Toya | Battery charger cradle |
| US20100315038A1 (en) * | 2009-06-16 | 2010-12-16 | Kyozo Terao | Battery charging pad employing magnetic induction |
| CN105006893A (en) * | 2015-05-25 | 2015-10-28 | 福建联迪商用设备有限公司 | Charging system of wireless password keyboard, and charging base |
| CN206117316U (en) * | 2016-05-30 | 2017-04-19 | 成都利弗德科技有限公司 | From centering electric automobile wireless charging device |
| CN108988499A (en) * | 2018-06-20 | 2018-12-11 | 欧格仕（厦门）科技有限公司 | Charging equipment |
| CN109983649A (en) * | 2016-11-29 | 2019-07-05 | 法国大陆汽车公司 | Be intended for motor vehicles, to user equipment carry out induction charging device |
-
2019
- 2019-10-16 CN CN201910984477.0A patent/CN110601313A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090153098A1 (en) * | 2007-12-18 | 2009-06-18 | Shoichi Toya | Battery charger cradle |
| US20100315038A1 (en) * | 2009-06-16 | 2010-12-16 | Kyozo Terao | Battery charging pad employing magnetic induction |
| CN105006893A (en) * | 2015-05-25 | 2015-10-28 | 福建联迪商用设备有限公司 | Charging system of wireless password keyboard, and charging base |
| CN206117316U (en) * | 2016-05-30 | 2017-04-19 | 成都利弗德科技有限公司 | From centering electric automobile wireless charging device |
| CN109983649A (en) * | 2016-11-29 | 2019-07-05 | 法国大陆汽车公司 | Be intended for motor vehicles, to user equipment carry out induction charging device |
| CN108988499A (en) * | 2018-06-20 | 2018-12-11 | 欧格仕（厦门）科技有限公司 | Charging equipment |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143342A1 (en) * | 2020-01-17 | 2021-07-22 | 深圳市一讯达科技有限公司 | Wireless charger and wireless charging control method |
| CN111884360A (en) * | 2020-07-13 | 2020-11-03 | Oppo广东移动通信有限公司 | Wireless charging seat and charging method using same |
| CN112531917A (en) * | 2020-11-23 | 2021-03-19 | 歌尔光学科技有限公司 | Wireless charging receiving device and electronic equipment |
| CN112531917B (en) * | 2020-11-23 | 2022-12-09 | 歌尔光学科技有限公司 | Wireless charging receiving device and electronic equipment |
| CN112886723A (en) * | 2021-01-25 | 2021-06-01 | 深圳市威尔丽斯科技有限公司 | Wireless charger capable of automatically positioning charging and implementation method |
| CN117404574A (en) * | 2023-12-15 | 2024-01-16 | 凯晖科技股份有限公司 | Unlimited rotation charging flat plate support |
| CN117404574B (en) * | 2023-12-15 | 2024-03-08 | 凯晖科技股份有限公司 | Unlimited rotation charging flat plate support |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110601313A (en) | Wireless charger with movable coil | |
| US9601946B2 (en) | Wireless power transmitter, wireless power receiver and wireless power transmission method | |
| US9812893B2 (en) | Wireless power receiver | |
| US9558884B2 (en) | Power transmission apparatus | |
| CN102882286B (en) | Electric field coupling-based wireless power transmission system | |
| CN102694425B (en) | Wireless power receiving apparatus and power control method thereof | |
| CN103545937A (en) | Apparatus and method for detecting foreign objects in wireless power transmission system | |
| CN105226845A (en) | Power transmission device and wireless power transmission system | |
| CN206004327U (en) | Transmitter device and vicariouss energy transmission system | |
| US20120161529A1 (en) | Power feeding device, power receiving device, and wireless power feed system | |
| CN105471116A (en) | Wireless Charging Transmission Device | |
| CN210608613U (en) | Wireless charger with movable coil | |
| JP2012135117A (en) | Non-contact power transmission system | |
| CN108072314A (en) | Arranged on the receiving terminal position detecting device and its detection method of wireless charging transmitting terminal | |
| US20230113295A1 (en) | Control system and control method | |
| WO2020259095A1 (en) | Wireless charger and control method therefor | |
| US8981713B2 (en) | Charging apparatus using pad type electrode contact point | |
| CN105914905B (en) | Detection wireless charging receiving device is placed in the method and device of wireless charging transmitter | |
| KR101222777B1 (en) | Coil structure for wireless chargement and wireless charging apparatus having the same | |
| TW201429110A (en) | Power feeding device and wireless power feeding system | |
| CN107276255B (en) | Wireless charger and charging control method thereof | |
| CN210669643U (en) | Control system of wireless charger | |
| WO2016140463A1 (en) | Wireless power transmission/reception device | |
| CN102856947A (en) | Non-contact and contact power charging device and controlling method thereof | |
| CN109193974A (en) | A method of optimization wireless charging stability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |