CN113991891B - Scroll type wireless charging method and wireless charger - Google Patents
Scroll type wireless charging method and wireless charger Download PDFInfo
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- CN113991891B CN113991891B CN202111294541.6A CN202111294541A CN113991891B CN 113991891 B CN113991891 B CN 113991891B CN 202111294541 A CN202111294541 A CN 202111294541A CN 113991891 B CN113991891 B CN 113991891B
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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
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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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
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
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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
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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
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
- H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
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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
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
Abstract
The invention relates to the technical field of wireless charging, in particular to a scroll type wireless charging method and a wireless charger, wherein the method comprises the following steps: the charging coil of the terminal comprises a plurality of channels, the scroll type wireless charger comprises a plurality of charging coils, and each charging coil comprises a plurality of channels; in the wireless charging process, the channels of the terminal, the charging coil of the scroll type wireless charger and the channels of the charging coil are adjusted to carry out cyclic matching, so that each channel of the terminal and each channel of the scroll type wireless charger are matched one by one to form different charging modes, and the charging utilization rate of each charging mode is obtained; and then obtain the biggest charge utilization ratio to adjust the charging coil's of terminal charging coil passageway and spool formula wireless charger charging coil and charging coil's passageway be the charging mode of biggest charge utilization ratio, carry out wireless charging, reduce the electric energy waste that charges, and spool formula wireless charger contains a plurality of charging coil and can solve the single problem of charging coil.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a scroll type wireless charging method and a wireless charger.
Background
With the development of wireless power transmission technology, wireless charging technology is mature, because the wireless charger and the power utilization device transmit energy through a magnetic field, the wireless charger and the power utilization device are not connected through wires, and can be exposed without conductive contacts, and the wireless charging technology is more convenient to use, so that the wireless charging technology is widely applied to various industries.
But in the process of using wireless charging, because wireless charging is lower for wired charging, charging efficiency and charging utilization rate, more electric energy is consumed when the same electric quantity is charged, and the charging efficiency and the charging utilization rate of wireless charging are related to the charging coil arrangement of a scroll type wireless charger and the arrangement of an electric device, the arrangement positions of the electric devices are different, the charging coils of the electric devices are different from the charging coils of the wireless charger, overlapping areas are different, the waste of a part of charging electric energy can be caused, the charging coil arrangement of different electric devices is different, the charging coil arrangement of a single wireless charger cannot meet the charging coil arrangement of different electric devices, the maximum overlapping area cannot be ensured when the electric device is used, the charging efficiency and the charging utilization rate in the charging process are maximized, and the use experience of a user is seriously influenced.
Disclosure of Invention
One of the purposes of the invention is to provide a scroll type wireless charging method, which can solve the problem of single charging coil, automatically find the maximum charging utilization rate for wireless charging, and reduce the waste of charging electric energy.
The basic scheme provided by the invention is as follows: a scroll type wireless charging method comprises the following steps:
the charging coil of the terminal comprises a plurality of channels, the scroll type wireless charger comprises a plurality of charging coils, and each charging coil comprises a plurality of channels;
in the process of wireless charging of the terminal and the scroll wireless charger, adjusting a channel of a charging coil of the terminal, a charging coil of the scroll wireless charger and a channel of the charging coil, and performing cyclic matching to enable each channel of the charging coil of the terminal and each channel of each charging coil of the scroll wireless charger to be matched one by one to form different charging modes, and obtaining charging utilization rate of each charging mode; and obtaining the maximum charging utilization rate according to the charging utilization rate of each charging mode, and adjusting the charging mode of which the channel of the charging coil of the terminal, the charging coil of the reel type wireless charger and the channel of the charging coil are the maximum charging utilization rate to perform wireless charging.
The first basic scheme has the beneficial effects that: the wireless charger of reel formula contains a plurality of charging coil, and every charging coil contains a plurality of passageway, and the charging coil of terminal also contains a plurality of passageway, and when charging between different passageways, the charge utilization rate is different. The terminal can be placed on the reel-type wireless charger in any orientation, and the maximum charging utilization can be obtained not by enabling the maximum channel terminal of the maximum charging coil, but according to the actual maximum charging utilization, because the positions of the terminal placed on the reel-type wireless charger are different.
In the scheme, in the process of wireless charging of the terminal and the scroll type wireless charger, the channels of the charging coil of the terminal, the charging coil of the scroll type wireless charger and the channels of the charging coil are adjusted to be circularly matched, so that each channel of the charging coil of the terminal and each channel of each charging coil of the scroll type wireless charger are matched one by one to form different charging modes, and the charging utilization rate of each charging mode is obtained; according to the charging utilization rate of each charging mode, the maximum charging utilization rate is obtained, the charging mode that the channel of the charging coil of the terminal, the charging coil of the scroll type wireless charger and the channel of the charging coil are the maximum charging utilization rate is adjusted to conduct wireless charging, and then in the subsequent wireless charging process, the charging utilization rates of the terminal and the scroll type wireless charger are always the maximum, so that the waste of charging electric energy is reduced in the charging process. In addition, the spool type wireless charger comprises a plurality of charging coils, so that the problem of singleness of the charging coils can be solved, the coils matched with the different coils of different terminals can be used for charging, and the spool type wireless charger is multiple in charging coils, so that a matching mode of a larger charging utilization rate can be found, and more charging electric energy can be saved.
Further, the loop matching includes:
enabling a channel T1 of the terminal;
the wireless charger of reel type reels to the charging coil A1 and starts the channel S of the charging coil A1 A11 ；
The channel is adjusted step by the reel type wireless charger at preset interval time intervals; if one charging coil is adjusted to the last stage of channel, the interval is preset for an interval time, and the reel type wireless charger reels to the next stage of charging coil; if the last stage charging coil is adjusted to the last stage channel, the interval is preset, the terminal is adjusted to the next stage channel, the reel type wireless charger reels to the charging coil A1 again, and the channel S of the charging coil A1 is started A11 The method comprises the steps of carrying out a first treatment on the surface of the If the terminal is adjusted to the last channel Tn, a plurality of preset interval times of the channels of the interval reel type wireless charger are adjusted, and the gradual adjustment is finished;
the obtaining the maximum charging utilization rate, adjusting the channel, includes:
obtaining the output power P of the reel type wireless charger in each preset interval time ijq And the reception power T of the terminal ijq The method comprises the steps of carrying out a first treatment on the surface of the Wherein i is E [1, n]，j∈[1，r]，q∈[1，m]The method comprises the steps of carrying out a first treatment on the surface of the n is the number of channels of the terminal, r is the number of charging coils of the reel type wireless charger, m is the number of channels of the reel type wireless charger, and q takes different values possibly belonging to different charging coils;
According to P ijq And T ijq Obtaining the charging utilization rate in each preset interval time through P ijq And T ijq Dividing to obtain the charging utilization rate in each preset interval time;
determining the maximum charging utilization rate according to the charging utilization rate in each preset interval time;
according to the maximum charging utilization rate, a channel Tx corresponding to the terminal, a charging coil Ay corresponding to the scroll type wireless charger and a channel S corresponding to the charging coil Ay are obtained Ayz ；
The terminal adjusts the channel to Tx, the reel wireless charger reels the charging coil to the charging coil Ay, and the channel is adjusted to S Ayz 。
The beneficial effects are that: to achieve the above-mentioned cyclic matching, the channel T1 of the terminal is first activated, the reel-type wireless charger reels to the charging coil A1, and the channel S of the charging coil A1 is started A11 The method comprises the steps of carrying out a first treatment on the surface of the Then, circulation adjustment is carried out, specifically: the channel is adjusted step by the reel type wireless charger at preset interval time intervals; if one charging coil is adjusted to the last stage of channel, the interval is preset for an interval time, and the reel type wireless charger reels to the next stage of charging coil; if the last stage charging coil is adjusted to the last stage channel, the interval is preset, the terminal is adjusted to the next stage channel, the reel type wireless charger reels to the charging coil A1 again, and the channel S of the charging coil A1 is started A11 The method comprises the steps of carrying out a first treatment on the surface of the If the terminal is adjusted to the last channel Tn, a plurality of preset interval times of the channels of the interval reel type wireless charger are adjusted, and the gradual adjustment is finished; so that each channel of each charging coil of the reel type wireless charger can be matched with each channel of the terminal and charging is carried out for a preset interval timeTherefore, the output power P of the reel type wireless charger can be obtained in each preset interval time ijq And the reception power T of the terminal ijq Obtaining the charging utilization rate in each preset interval time, and determining the maximum charging utilization rate; according to the maximum charging utilization rate, the channel Tx corresponding to the terminal, the charging coil Ay corresponding to the scroll type wireless charger and the channel S corresponding to the charging coil Ay can be obtained Ayz The method comprises the steps of carrying out a first treatment on the surface of the The terminal adjusts the channel to Tx, the reel wireless charger reels the charging coil to the charging coil Ay, and the channel is adjusted to S Ayz And the subsequent wireless charging is performed, so that the charging utilization rate of the terminal and the scroll type wireless charger is always the maximum in the subsequent wireless charging process, and the waste of charging electric energy is reduced in the charging process. Further, before the terminal enables the channel T1, the method further includes:
starting a reel type wireless charger;
The scroll type wireless charger detects whether a terminal exists in a preset range, if so, out-of-band communication of the terminal is started, and initialization is carried out;
acquiring terminal voltage;
judging whether the terminal voltage is smaller than a preset charging voltage threshold value, if so, starting a maximum channel of a maximum coil to charge, and starting out-of-band communication of the reel wireless charger after the terminal voltage reaches the preset charging voltage threshold value; if not, the out-of-band communication of the scroll type wireless charger is started.
The beneficial effects are that: because the charging process is unidirectional, out-of-band communication is started, so that the terminal and the scroll type wireless charger can carry out bidirectional communication, and partial electric energy can be consumed by the out-of-band communication, so that the terminal voltage is required to be more than or equal to a preset voltage threshold value, and the scroll type wireless charger is ensured to have enough electric energy for information reception.
Further, the reel-type wireless charger is started, and the reel-type wireless charger starts a default charging coil and a default channel.
The beneficial effects are that: the spool type wireless charger starts the default charging coil and the default channel, the default charging coil and the default channel can be the charging coil with the largest area of the spool type wireless charger and the largest channel of the largest charging coil, because the spool type wireless charger is started initially, wireless charging is carried out on the terminal, the charging coil with the largest area and the largest channel are started, and the probability that the terminal voltage reaches the preset charging voltage threshold value as soon as possible can be increased.
Further, the shape of the charging coil includes: any one or more of the combination of round, triangle, quadrangle and polygon, and each charging coil is a coil with a plurality of turns, and each charging coil is provided with a multipath controller port for connecting the fixed electrode.
The beneficial effects are that: the shape of the charging coil can comprise a combination of various shapes, and the combination mode of the charging coil can be parallel arrangement or surrounding arrangement, so that the charging coil can find a relatively optimal channel for charging under the condition that the terminal has more placement modes; the charging coils in each shape are coils with a plurality of turns and are connected to different channels in different bundles and areas, so that a plurality of channels of the charging coils can be formed.
The second purpose of the invention is to provide a scroll type wireless charger, which can solve the problem of single charging coil, automatically find the maximum charging utilization rate for wireless charging, and reduce the waste of charging electric energy.
The invention provides a basic scheme II: a reel-type wireless charger for wirelessly charging a terminal, comprising: the upper surface of the shell is used for placing the terminal, and a scroll, a rotating shaft, a power unit and a control unit are arranged in the shell;
The reel is provided with a plurality of charging coils, each charging coil comprises a plurality of channels, and the charging coils are used for being coupled with the charging coils of the terminal to charge the terminal; the two ends of the reel are connected with a rotating shaft, and the rotating shaft drives the reel to rotate;
the power unit is used for providing power for rotation of the rotating shaft;
the control unit is used for controlling the rotation of the rotating shaft and the opening and closing of the channels of the charging coils, so that each channel of each charging coil is matched with each channel of the charging coil of the terminal one by one to form different charging modes, and the charging utilization rate of each charging mode is obtained; and obtaining the maximum charging utilization rate according to the charging utilization rate of each charging mode, and adjusting the charging mode of which the channel of the charging coil of the terminal, the charging coil of the reel type wireless charger and the channel of the charging coil are the maximum charging utilization rate to perform wireless charging.
The second basic scheme has the beneficial effects that: the reel type wireless charger comprises a shell, a reel, a power unit, a reel, a charging coil, a charging unit and a power unit, wherein the reel is arranged in the shell, the two ends of the reel are connected with a rotating shaft, the power unit provides power for the rotation of the rotating shaft, the rotating shaft drives the reel to rotate, different charging coils are displayed on the reel, and terminals placed on the shell are charged.
Because the spool contains a plurality of charging coil, every charging coil contains a plurality of passageway, and the charging coil of terminal also contains a plurality of passageway, and when charging between different passageways, the charge utilization rate is different. The terminal can be placed on the scroll type wireless charger in any orientation, and the maximum charging utilization rate can be obtained only by selecting a channel with high contact ratio instead of enabling the maximum channel terminal of the maximum charging coil because the positions of the terminal placed on the scroll type wireless charger are different.
The shell of the scroll type wireless charger is also internally provided with a control unit, the control unit controls the rotation of the rotating shaft and the opening and closing of the channels of the charging coils, so that each channel of each charging coil is matched with each channel of the charging coil of the terminal one by one to form different charging modes, and the charging utilization rate of each charging mode is obtained; according to the charging utilization rate of each charging mode, the maximum charging utilization rate is obtained, the charging mode that the channel of the charging coil of the terminal, the charging coil of the scroll type wireless charger and the channel of the charging coil are the maximum charging utilization rate is adjusted to conduct wireless charging, and therefore subsequent wireless charging is conducted, in the subsequent wireless charging process, the charging utilization rates of the terminal and the scroll type wireless charger are always the maximum, and therefore charging electric energy waste is reduced in the charging process. And a plurality of charging coils arranged on the reel can solve the problem of singleness of the charging coils, and the coils matched with the coils can be used for charging different coils of different terminals. The diversified charging coil of the scroll type wireless charger is beneficial to finding a matching mode of a larger charging utilization rate, and further more charging electric energy is saved.
Further, the control unit includes: the device comprises a controller, a multi-way switch control module and a communication module;
the controller is used for generating a terminal channel step-by-step adjustment signal according to the preset interval time, the number of the charging coils on the reel and the channel number of each charging coil, sending the terminal channel step-by-step adjustment signal to the terminal through the communication module, enabling the channel T1 according to the terminal channel step-by-step adjustment signal, and adjusting the channel number of each charging coil on each interval reel to the next channel by multiplying the time of the sum of the preset interval time, if the terminal is adjusted to the last channel Tn, the channel number of the interval reel type wireless charger is preset for the preset interval time, and ending step-by-step adjustment;
the device is also used for controlling the rotating shaft to rotate to drive the reel to rotate to the first-stage charging coil A1 and controlling the multi-way switch control module to start the channel S of the charging coil A1 while the terminal starts the channel T1 A11 And the multi-way switch control module is controlled to adjust the channels step by step at intervals of preset intervals;
when one charging coil is adjusted to the last stage of channel, the interval is preset, and the rotating shaft is controlled to rotate to drive the reel to rotate to the next stage of charging coil;
when the last-stage charging coil is adjusted to the last-stage channel, the rotating shaft is controlled to rotate to drive the reel to rotate to the first-stage charging coil A1 at preset intervals, and the channel S of the charging coil A1 is started A11 ；
The method is also used for obtaining the output power P of the reel type wireless charger in each preset interval time ijq And the reception power T of the terminal ijq And according to P ijq And T ijq Obtaining the charging utilization rate in each preset interval time; wherein i is E [1, n]，j∈[1，r]，q∈[1，m]The method comprises the steps of carrying out a first treatment on the surface of the n is the number of channels of the terminal, r is the scroll type wireless chargingThe number of charging coils of the electric appliance, m is the number of channels of the scroll type wireless charger, and q takes different values and can belong to different charging coils;
the method is also used for determining the maximum charging utilization rate according to the charging utilization rate in each preset interval time, and acquiring a channel Tx corresponding to the terminal, a charging coil Ay corresponding to the scroll type wireless charger and a channel S corresponding to the charging coil Ay according to the maximum charging utilization rate Ayz ；
The channel S is also used for controlling the rotation of the rotating shaft to drive the reel to rotate to the charging coil Ay and controlling the multi-way switch control module to start the charging coil Ay Ayz And transmitting a signal containing Tx information to the terminal through the communication module; the terminal adjusts the channel to be Tx;
the multi-way switch control module is connected with the controller and used for controlling the opening and closing of the channels of the charging coils;
and the communication module is connected with the controller and used for communicating with the terminal.
The beneficial effects are that: the control unit comprises a controller, a multi-way switch control module and a communication module, and the circulation matching between the reel type wireless charger and the terminal is controlled by each module, specifically: generating a terminal channel step-by-step adjustment signal according to the preset interval time, the number of charging coils on the reel and the channel number of each charging coil, transmitting the terminal channel step-by-step adjustment signal to a terminal through a communication module, enabling a channel T1 by the terminal according to the terminal channel step-by-step adjustment signal, and adjusting the channel number of each charging coil on each interval reel by the time of the sum of the preset interval time to the next channel, if the terminal is adjusted to the last channel Tn, then the channel number of the interval reel type wireless charger is preset interval time, and ending step-by-step adjustment; when the terminal starts the channel T1, the rotating shaft is controlled to rotate to drive the reel to rotate to the first-stage charging coil A1, and the multi-way switch control module is controlled to start the channel S of the charging coil A1 A11 And the multi-way switch control module is controlled to adjust the channels step by step at intervals of preset intervals; when one charging coil is adjusted to the last stage of channel, the interval is preset, and the rotating shaft is controlled to rotate to drive the reel to rotate to the next stage of charging coil; last stage charging wireWhen the ring is adjusted to the last channel, the rotating shaft is controlled to rotate to drive the reel to rotate to the first-stage charging coil A1 at preset intervals, and the channel S of the charging coil A1 is started A11 Therefore, each channel of each charging coil of the reel type wireless charger can be matched with each channel of the terminal, and the subsequent acquisition can be finally performed in a wireless charging mode under the maximum charging utilization matching mode.
Further, the communication module comprises an in-band communication sub-module and an out-of-band communication sub-module;
the in-band communication sub-module is used for sending signals to the terminal by the controller;
the out-of-band communication sub-module is used for the controller to send signals to the terminal and for the receiving terminal to send signals to the controller;
the detection unit is used for detecting whether a terminal exists in a preset range, if so, generating an out-of-band communication starting signal, sending the out-of-band communication starting signal to the terminal through the communication module, and triggering the controller to initialize.
The beneficial effects are that: because the charging process is unidirectional, the in-band communication sub-module can only be used for the controller to send signals to the terminal, and the out-of-band communication sub-module is arranged to enable the terminal and the scroll type wireless charger to carry out bidirectional communication.
The controller is also used for generating a terminal voltage inquiry signal, sending the terminal voltage inquiry signal to the terminal through the communication module, and acquiring terminal voltage replied by the terminal through the communication module; the terminal voltage generation circuit is also used for judging whether the terminal voltage is smaller than a preset charging voltage threshold value, if so, starting a maximum channel of a maximum coil to charge, and generating a terminal channel step-by-step adjustment signal after the terminal voltage reaches the preset charging voltage threshold value; if not, generating a terminal channel step-by-step adjustment signal.
The beneficial effects are that: because the out-of-band communication sub-module consumes part of the electric energy, the charging voltage needs to be met and is larger than a preset voltage threshold value, and the wireless charger is ensured to have enough electric energy to receive information.
Further, the shape of the charging coil includes: any one or more of the combination of the round, triangle, quadrangle and polygon, and each charging coil is a coil with a plurality of turns, and each charging coil is provided with a multipath controller port for connecting the fixed electrode.
The beneficial effects are that: the shape of the charging coil can comprise a combination of various shapes, and the combination mode of the charging coil can be parallel arrangement or surrounding arrangement, so that the charging coil can find a relatively optimal channel for charging under the condition that the terminal has more placement modes; the charging coils in each shape are coils with a plurality of turns and are connected to different channels in different bundles and areas, so that a plurality of channels of the charging coils can be formed.
Drawings
FIG. 1 is a schematic flow chart of a scroll type wireless charging method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a reel-type wireless charger according to an embodiment of the present invention;
FIG. 3 is a schematic view of a vertical double-row quadrilateral charging coil in an embodiment of a scroll-type wireless charger according to the present invention;
FIG. 4 is a schematic view of a horizontal double-row quadrilateral charging coil in an embodiment of a scroll-type wireless charger according to the present invention;
FIG. 5 is a schematic diagram of a left-leaning quadrilateral charging coil in an embodiment of a scroll-type wireless charger according to the present invention;
FIG. 6 is a diagram of a right-angled quadrilateral charging coil in an embodiment of a scroll-type wireless charger according to the present invention;
FIG. 7 is a schematic diagram of overlapping quadrilateral charging coils in an embodiment of a scroll-type wireless charger according to the present invention;
Fig. 8 is a logic block diagram of a control unit in an embodiment of a scroll-type wireless charger according to the present invention.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: a housing 1, a reel 2, a rotary shaft 3, and a charging coil 4.
Example 1
The embodiment provides a scroll type wireless charging method, which comprises the following steps:
the charging coil of the terminal comprises a plurality of channels, the scroll type wireless charger comprises a plurality of charging coils, and each charging coil comprises a plurality of channels;
in the process of wireless charging of the terminal and the scroll wireless charger, adjusting a channel of a charging coil of the terminal, a charging coil of the scroll wireless charger and a channel of the charging coil, and performing cyclic matching to enable each channel of the charging coil of the terminal and each channel of each charging coil of the scroll wireless charger to be matched one by one to form different charging modes, and obtaining charging utilization rate of each charging mode; and obtaining the maximum charging utilization rate according to the charging utilization rate of each charging mode, and adjusting the charging mode of which the channel of the charging coil of the terminal, the charging coil of the reel type wireless charger and the channel of the charging coil are the maximum charging utilization rate to perform wireless charging.
The specific process is as shown in fig. 1:
starting a scroll type wireless charger, and starting a default charging coil and a default channel by the scroll type wireless charger; in this embodiment, the charging coil with the largest area and the largest channel thereof are started; the reel type wireless charger is a wireless charger with a plurality of charging coils arranged on a reel, and two ends of the reel rotate, so that different charging coils are unfolded;
the scroll type wireless charger detects whether a terminal exists in a preset range, if so, out-of-band communication of the terminal is started, and initialization is carried out; wherein out-of-band communication refers to information communicated between a transmitting end and a receiving end being completely independent of wireless power transfer processes, such as: NFC, zigbee, bluetooth, BT, WIFI and the like, and the in-band communication adopts the WIFI in the embodiment; in-band communication is a communication mode of the current wireless charging mainstream, wherein the in-band communication means that the transmitted information is bound on the emission of wireless power, and the charging process is unidirectional, so that the in-band communication can only send information to the terminal by the wireless charger, and out-of-band communication is started, so that the terminal and the scroll type wireless charger can carry out bidirectional communication;
acquiring terminal voltage;
Judging whether the terminal voltage is smaller than a preset charging voltage threshold value, if so, starting a maximum channel of a maximum coil to charge, and starting out-of-band communication of the reel wireless charger after the terminal voltage reaches the preset charging voltage threshold value; if not, the out-of-band communication of the scroll type wireless charger is started; because out-of-band communication is started and extra electric energy support is needed for the out-of-band communication, the terminal voltage is required to be more than or equal to a preset voltage threshold value, and the reel type wireless charger is ensured to have enough electric energy for information reception so as to start the out-of-band communication;
enabling a channel T1 of the terminal; the terminal comprises a plurality of channels;
the wireless charger of reel type reels to the charging coil A1 and starts the channel S of the charging coil A1 A11 The method comprises the steps of carrying out a first treatment on the surface of the The reel type wireless charger comprises a plurality of charging coils, and each charging coil comprises a plurality of channels;
the channel is adjusted step by the reel type wireless charger at preset interval time intervals; if one charging coil is adjusted to the last stage of channel, the interval is preset for an interval time, and the reel type wireless charger reels to the next stage of charging coil; if the last stage charging coil is adjusted to the last stage channel, the interval is preset, the terminal is adjusted to the next stage channel, the reel type wireless charger reels to the charging coil A1 again, and the channel S of the charging coil A1 is started A11 The method comprises the steps of carrying out a first treatment on the surface of the If the terminal is adjusted to the last channel Tn, a plurality of preset interval times of the channels of the interval reel type wireless charger are adjusted, and the gradual adjustment is finished; take the example of terminals including channels T1 and T2, and reel-type wireless chargers including charging coils A1 and A2, wherein A1 includes channel S A11 And S is A12 A2 comprises channel S A21 And S is A22 The specific process of loop matching is: t1 and S A11 Matching, and performing wireless charging for a preset interval period; then the channel of the reel type wireless charger is adjusted to S A12 T1 and S A12 Matching, and performing wireless charging for a preset interval period; then the reel type wireless charger reels to the next stage of charging coil A2, starts S A21 T1 andS A21 matching, and performing wireless charging for a preset interval period; then the reel type wireless charger adjusts the channel of A1 to S A22 T1 and S A22 Matching, and performing wireless charging for a preset interval period; then the terminal is adjusted to T2, the reel of the reel type wireless charger is wound to A1, and S is started A11 The same cycle matching as described above is performed, but T1 is replaced with T2;
obtaining the output power P of the reel type wireless charger in each preset interval time ijq And the reception power T of the terminal ijq The method comprises the steps of carrying out a first treatment on the surface of the Wherein i is E [1, n]，j∈[1，r]，q∈[1，m]The method comprises the steps of carrying out a first treatment on the surface of the n is the number of channels of the terminal, r is the number of charging coils of the reel type wireless charger, m is the number of channels of the reel type wireless charger, and q may take different values belonging to different charging coils, for example, channel q=1, q=2, and q=3 is channel S of coil A1 A11 、S A12 And S is A13 Channels q=4 and q=5 are channels S of coil A2 A21 And S is A22 The method comprises the steps of carrying out a first treatment on the surface of the In this embodiment, the reel type wireless charger obtains its own output power P ijq Reception power T transmitted by out-of-band communication reception terminal at the same time ijq ；
According to P ijq And T ijq Obtaining the charging utilization rate in each preset interval time; the method comprises the following steps: p (P) ijq And T ijq Dividing to obtain the charging utilization rate in each preset interval time; in this embodiment the calculation is performed in a reel-type wireless charger;
determining the maximum charging utilization rate according to the charging utilization rate in each preset interval time;
according to the maximum charging utilization rate, a channel Tx corresponding to the terminal, a charging coil Ay corresponding to the scroll type wireless charger and a channel S corresponding to the charging coil Ay are obtained Ayz ；
The terminal adjusts the channel to Tx, the reel wireless charger reels the charging coil to the charging coil Ay, and the channel is adjusted to S Ayz And (5) performing wireless charging. In this embodiment, the reel wireless charger transmits the Tx to the terminal through in-band communication or out-of-band communication, and the terminal acquires the Tx and adjusts the Tx. The above-mentioned chargingThe shape of the electrical coil, comprising: any one or more of the combination of round, triangle, quadrangle and polygon, and each charging coil is a coil with a plurality of turns, and each charging coil is provided with a multipath controller port for connecting the fixed electrode.
After the cyclic matching, the terminal and the scroll type wireless charger adopt a matching mode with the maximum charging utilization rate to carry out wireless charging, so that the waste of charging electric energy is reduced in the charging process. In addition, the spool type wireless charger comprises a plurality of charging coils, the problem that the charging coils are single can be solved, the shapes of the charging coils are various, a plurality of different shapes can be set according to actual demands, different charging coils are set, the coils matched with the different coils of different terminals can be used for charging, and the spool type wireless charger is various in charging coils, so that the spool type wireless charger is favorable for finding a matching mode of larger charging utilization rate, and further more charging electric energy is saved.
Example two
This embodiment is substantially the same as described above, except that: in this embodiment, each channel of the reel-type wireless apparatus is matched with each channel of the terminal one by one, that is, one charging coil of the reel-type wireless apparatus and one channel thereof are fixed, the terminal performs channel-by-channel adjustment, and matches, after the terminal adjusts all channels, the reel-type wireless apparatus adjusts to the next channel, and the terminal performs channel-by-channel adjustment, so that each channel of the reel-type wireless charger and the terminal can also match one by one.
Example III
This embodiment is basically as shown in fig. 2: a reel-type wireless charger for wirelessly charging a terminal, comprising: the device comprises a shell 1, wherein the upper surface of the shell 1 is used for placing a terminal, and a scroll 2, a rotating shaft 3, a power unit, a control unit and a detection unit are arranged in the shell 1;
the reel 2 is provided with a plurality of charging coils 4, and each charging coil 4 comprises a plurality of channels; a charging coil 4 for coupling with a charging coil of the terminal to charge the terminal; the shape of the charging coil 4 includes: any one or more combinations of a circle, a triangle, a quadrangle and a polygon, each charging coil 4 is a coil with a plurality of turns, and each charging coil 4 is provided with a multi-path controller port for connecting a fixed electrode; the present embodiment includes five charging coils 4, and A1 is as described in fig. 3: a vertical double-row quadrangular charging coil 4; a2 is as shown in fig. 4: a horizontal double-row quadrangular charging coil 4; a3 is as shown in fig. 5: a left-leaning quadrilateral charging coil 4; a4 is as shown in fig. 6: a right-leaning quadrangular charging coil 4; a5 is as shown in fig. 7: overlapping the quadrangular charging coil 4;
the two ends of the scroll 2 are connected with a rotating shaft 3, and the rotating shaft 3 drives the scroll 2 to rotate;
A power unit for supplying power to the rotation of the rotation shaft 3; in the implementation, the power unit is a miniature motor, the rotating shafts 3 are arranged at two sides of the interior of the shell 1, one end of the rotating shafts is inserted into an annular groove arranged on the inner wall of the shell 1, the other end of the rotating shafts is provided with a gear meshed with an output gear on an output shaft of the miniature motor, and two ends of the scroll 2 are fixedly connected to the rotating shafts 3 at two sides of the interior of the shell 1, so that gluing can be adopted;
the control unit is used for controlling the rotation of the rotating shaft 3 and the opening and closing of the channels of the charging coils 4, so that each channel of each charging coil 4 is matched with each channel of the charging coil of the terminal one by one to form different charging modes, and the charging utilization rate of each charging mode is obtained; according to the charging utilization rate of each charging mode, the maximum charging utilization rate is obtained, and the charging modes of which the channels of the charging coil of the terminal, the charging coil 4 of the reel type wireless charger and the channel 3 of the charging coil are the maximum charging utilization rate are adjusted to perform wireless charging, specifically: a control unit comprising: the controller, the multi-way switch control module and the communication module are shown in fig. 8;
the controller is used for generating a terminal channel step-by-step adjustment signal according to the preset interval time, the number of the charging coils 4 on the reel 2 and the channel number of each charging coil 4, sending the terminal channel step-by-step adjustment signal to the terminal through the communication module, enabling the channel T1 according to the terminal channel step-by-step adjustment signal by the terminal, and adjusting the channel number of each charging coil on each interval reel 2 to the next channel by the time of the sum of the preset interval time, if the terminal is adjusted to the last channel Tn, the channel number of the interval reel type wireless charger is preset for the preset interval time, and ending the step-by-step adjustment;
The device is also used for enabling the channel T1 at the terminal, controlling the rotation shaft 3 to rotate so as to drive the scroll 2 to rotate to the first-stage charging coil A1 and controlling the multi-way switch control module to enable the channel S of the charging coil A1 A11 And the multi-way switch control module is controlled to adjust the channels step by step at intervals of preset intervals;
when one charging coil 4 is adjusted to the last stage of channel, the interval is preset, and the rotating shaft 3 is controlled to rotate to drive the scroll 2 to rotate to the next stage of charging coil 4;
when the last-stage charging coil 4 is adjusted to the last-stage channel, the rotating shaft 3 is controlled to rotate to drive the scroll 2 to rotate to the first-stage charging coil A1 at preset intervals, and the channel S of the charging coil A1 is started A11 The method comprises the steps of carrying out a first treatment on the surface of the The above cycle matching is exemplified by the terminal including channels T1 and T2, and the reel 2 including charging coils A1 and A2, wherein A1 includes channel S A11 And S is A12 A2 comprises channel S A21 And S is A22 The specific process of loop matching is: t1 and S A11 Matching, and performing wireless charging for a preset interval period; then the controller controls the multi-way switch control module to adjust the channel of A1 to S A12 T1 and S A12 Matching, and performing wireless charging for a preset interval period; then the controller controls the rotation shaft 3 to rotate to lead the reel 2 to reach the next stage of charging coil A2, and S is started A21 T1 and S A21 Matching, and performing wireless charging for a preset interval period; then the controller controls the multi-way switch control module to adjust the channel of A1 to S A22 T1 and S A22 Matching, and performing wireless charging for a preset interval period; then the terminal is adjusted to T2, the controller controls the rotation shaft 3 to rotate to enable the reels 2 to A1, and S is started A11 The same cycle matching as described above is performed, but T1 is replaced with T2;
the method is also used for obtaining the output power P of the reel type wireless charger in each preset interval time ijq And the reception power T of the terminal ijq And according to P ijq And T ijq Obtaining each preset interval timeCharging utilization ratio of (a); wherein i is E [1, n]，j∈[1，r]，q∈[1，m]The method comprises the steps of carrying out a first treatment on the surface of the n is the number of channels of the terminal, r is the number of charging coils of the reel type wireless charger, m is the number of channels of the reel type wireless charger, and q may take different values belonging to different charging coils, for example, channel q=1, q=2, and q=3 is channel S of coil A1 A11 、S A12 And S is A13 Channels q=4 and q=5 are channels S of coil A2 A21 And S is A22 The method comprises the steps of carrying out a first treatment on the surface of the Received power T of terminal ijq Is sent to the reel type wireless charger through the out-of-band communication submodule;
the method is also used for determining the maximum charging utilization rate according to the charging utilization rate in each preset interval time, and acquiring a channel Tx corresponding to the terminal, a charging coil Ay corresponding to the scroll type wireless charger and a channel S corresponding to the charging coil Ay according to the maximum charging utilization rate Ayz ；
The channel S is also used for controlling the rotation shaft 3 to rotate so as to drive the scroll 2 to rotate to the charging coil Ay and controlling the multi-way switch control module to start the charging coil Ay Ayz Transmitting a signal containing the Tx information to the terminal through an out-of-band communication sub-module of the communication module; the terminal adjusts the channel to be Tx;
the multi-way switch control module is connected with the controller and used for controlling the opening and closing of the channels of the charging coils 4;
the communication module is connected with the controller and used for communicating with the terminal and comprises an in-band communication sub-module and an out-of-band communication sub-module;
the in-band communication sub-module is used for sending signals to the terminal by the controller;
the out-of-band communication sub-module is used for the controller to send signals to the terminal and for the receiving terminal to send signals to the controller; wherein out-of-band communication refers to information communicated between a transmitting end and a receiving end being completely independent of wireless power transfer processes, such as: NFC, zigbee, bluetooth, BT, WIFI and the like, and the in-band communication sub-module in the embodiment adopts the antenna sub-module to perform WIFI transmission; in-band communication is a communication mode of the current wireless charging mainstream, wherein the in-band communication means that the transmitted information is bound on the emission of wireless power, and because the charging process is unidirectional, the in-band communication can only be transmitted to the terminal by the wireless charger, so that the in-band communication is started, and an out-band communication sub-module is arranged, so that the terminal and the scroll type wireless charger can carry out bidirectional communication;
The detection unit is used for detecting whether a terminal exists in a preset range, if so, generating an out-of-band communication starting signal, sending the out-of-band communication starting signal to the terminal through the communication module, triggering the controller to initialize, cleaning the last matching cycle information and preparing for new cycle matching;
the controller is also used for generating a terminal voltage inquiry signal, sending the terminal voltage inquiry signal to the terminal through the communication module, and acquiring terminal voltage replied by the terminal through the communication module; the terminal voltage generation circuit is also used for judging whether the terminal voltage is smaller than a preset charging voltage threshold value, if so, starting a maximum channel of a maximum coil to charge, and generating a terminal channel step-by-step adjustment signal after the terminal voltage reaches the preset charging voltage threshold value; if not, generating a terminal channel step-by-step adjustment signal. Because the out-of-band communication sub-module consumes part of the electric energy, the charging voltage needs to be met and is larger than a preset voltage threshold value, and the wireless charger is ensured to have enough electric energy to receive information.
The spool type wireless charger enables the terminal to charge in the matching mode with the largest charging utilization rate through the arrangement, and each charging time can automatically find the matching mode with the largest charging utilization rate for each terminal, so that the waste of charging electric energy is reduced in the charging process. And a plurality of charging coils 4 that set up on spool 2 can solve the single problem of charging coil 4, to the different coils at different terminals, can all have the coil that matches with it to charge. The diversified charging coil 4 of the scroll type wireless charger is beneficial to finding a matching mode of a larger charging utilization rate, and further more charging electric energy is saved.
In addition, the embodiment also provides a scroll type wireless charger for implementing any step of the method described in the second embodiment.
The foregoing is merely an embodiment of the present application, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application date or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (8)
1. A scroll type wireless charging method is characterized in that: the method comprises the following steps:
the charging coil of the terminal comprises a plurality of channels, the scroll type wireless charger comprises a plurality of charging coils, and each charging coil comprises a plurality of channels; in the process of wireless charging of the terminal and the scroll wireless charger, adjusting a channel of a charging coil of the terminal, a charging coil of the scroll wireless charger and a channel of the charging coil, and performing cyclic matching to enable each channel of the charging coil of the terminal and each channel of each charging coil of the scroll wireless charger to be matched one by one to form different charging modes, and obtaining charging utilization rate of each charging mode; obtaining the maximum charging utilization rate according to the charging utilization rate of each charging mode, and adjusting the channel of a charging coil of the terminal, the charging coil of the reel type wireless charger and the channel of the charging coil to be the charging mode with the maximum charging utilization rate for wireless charging;
the loop matching includes: enabling a channel T1 of the terminal;
the reel type wireless charger reels to the charging coil A1 and starts the connection of the charging coil A1Track S A11 ；
The channel is adjusted step by the reel type wireless charger at preset interval time intervals; if one charging coil is adjusted to the last stage of channel, the interval is preset for an interval time, and the reel type wireless charger reels to the next stage of charging coil; if the last stage charging coil is adjusted to the last stage channel, the interval is preset, the terminal is adjusted to the next stage channel, the reel type wireless charger reels to the charging coil A1 again, and the channel S of the charging coil A1 is started A11 The method comprises the steps of carrying out a first treatment on the surface of the If the terminal is adjusted to the last channel Tn, a plurality of preset interval times of the channels of the interval reel type wireless charger are adjusted, and the gradual adjustment is finished;
the obtaining the maximum charging utilization rate, adjusting the channel, includes:
obtaining the output power P of the reel type wireless charger in each preset interval time ijq And the reception power T of the terminal ijq The method comprises the steps of carrying out a first treatment on the surface of the Wherein i is E [1, n] ， j∈ [1，r] ， q∈ [1，m]The method comprises the steps of carrying out a first treatment on the surface of the n is the number of channels of the terminal, r is the number of charging coils of the reel type wireless charger, and m is the number of channels of the reel type wireless charger;
according to P ijq And T ijq Obtaining the charging utilization rate in each preset interval time through P ijq And T ijq Dividing to obtain the charging utilization rate in each preset interval time;
determining the maximum charging utilization rate according to the charging utilization rate in each preset interval time;
according to the maximum charging utilization rate, a channel Tx corresponding to the terminal, a charging coil Ay corresponding to the scroll type wireless charger and a channel S corresponding to the charging coil Ay are obtained Ayz The method comprises the steps of carrying out a first treatment on the surface of the The terminal adjusts the channel to Tx, the reel wireless charger reels the charging coil to the charging coil Ay, and the channel is adjusted to S Ayz 。
2. The reel-to-reel wireless charging method of claim 1, wherein: before the terminal starts the channel T1, the method further includes:
Starting a reel type wireless charger;
the scroll type wireless charger detects whether a terminal exists in a preset range, if so, out-of-band communication of the terminal is started, and initialization is carried out;
acquiring terminal voltage;
judging whether the terminal voltage is smaller than a preset charging voltage threshold value, if so, starting a maximum channel of a maximum coil to charge, and starting out-of-band communication of the reel wireless charger after the terminal voltage reaches the preset charging voltage threshold value; if not, the out-of-band communication of the scroll type wireless charger is started.
3. The reel-to-reel wireless charging method of claim 2, wherein: the scroll type wireless charger is started, and the scroll type wireless charger starts a default charging coil and a default channel.
4. The reel-to-reel wireless charging method of claim 1, wherein: the shape of the charging coil is any one or combination of two of a circle and a polygon, each charging coil is a coil with a plurality of turns, and each charging coil is provided with a multipath controller port for connecting a fixed electrode.
5. A spool formula wireless charger for terminal wireless charging, its characterized in that: comprising the following steps: the upper surface of the shell is used for placing the terminal, and a scroll, a rotating shaft, a power unit and a control unit are arranged in the shell;
The reel is provided with a plurality of charging coils, each charging coil comprises a plurality of channels, and the charging coils are used for being coupled with the charging coils of the terminal to charge the terminal; the two ends of the reel are connected with a rotating shaft, and the rotating shaft drives the reel to rotate;
the power unit is used for providing power for rotation of the rotating shaft;
the control unit is used for controlling the rotation of the rotating shaft and the opening and closing of the channels of the charging coils, so that each channel of each charging coil is matched with each channel of the charging coil of the terminal one by one to form different charging modes, and the charging utilization rate of each charging mode is obtained; obtaining the maximum charging utilization rate according to the charging utilization rate of each charging mode, and adjusting the channel of a charging coil of the terminal, the charging coil of the reel type wireless charger and the channel of the charging coil to be the charging mode with the maximum charging utilization rate for wireless charging;
the control unit further includes: the device comprises a controller, a multi-way switch control module and a communication module;
the controller is used for generating a terminal channel step-by-step adjustment signal according to the preset interval time, the number of the charging coils on the reel and the channel number of each charging coil, sending the terminal channel step-by-step adjustment signal to the terminal through the communication module, enabling the channel T1 according to the terminal channel step-by-step adjustment signal, and adjusting the channel number of each charging coil on each interval reel to the next channel by multiplying the time of the sum of the preset interval time, if the terminal is adjusted to the last channel Tn, the channel number of the interval reel type wireless charger is preset for the preset interval time, and ending step-by-step adjustment;
The device is also used for controlling the rotating shaft to rotate to drive the reel to rotate to the first-stage charging coil A1 and controlling the multi-way switch control module to start the channel S of the charging coil A1 while the terminal starts the channel T1 A11 And the multi-way switch control module is controlled to adjust the channels step by step at intervals of preset intervals;
when one charging coil is adjusted to the last stage of channel, the interval is preset, and the rotating shaft is controlled to rotate to drive the reel to rotate to the next stage of charging coil;
when the last-stage charging coil is adjusted to the last-stage channel, the rotating shaft is controlled to rotate to drive the reel to rotate to the first-stage charging coil A1 at preset intervals, and the channel S of the charging coil A1 is started A11 ；
The method is also used for obtaining the output power P of the reel type wireless charger in each preset interval time ijq And the reception power T of the terminal ijq And according to P ijq And T ijq Obtaining the charging utilization rate in each preset interval time; wherein i is E [1, n] ， j ∈ [1，r] ，q∈ [1，m]The method comprises the steps of carrying out a first treatment on the surface of the n is the number of channels of the terminal, r is the number of charging coils of the reel type wireless charger, and m is the number of channels of the reel type wireless charger;
the method is also used for determining the maximum charging utilization rate according to the charging utilization rate in each preset interval time, and acquiring a channel Tx corresponding to the terminal, a charging coil Ay corresponding to the scroll type wireless charger and a channel S corresponding to the charging coil Ay according to the maximum charging utilization rate Ayz ；
The channel S is also used for controlling the rotation of the rotating shaft to drive the reel to rotate to the charging coil Ay and controlling the multi-way switch control module to start the charging coil Ay Ayz And transmitting a signal containing Tx information to the terminal through the communication module; the terminal adjusts the channel to be Tx;
the multi-way switch control module is connected with the controller and used for controlling the opening and closing of the channels of the charging coils;
and the communication module is connected with the controller and used for communicating with the terminal.
6. The reel-type wireless charger as defined in claim 5, wherein: the communication module comprises an in-band communication sub-module and an out-of-band communication sub-module; the in-band communication sub-module is used for sending signals to the terminal by the controller;
the out-of-band communication sub-module is used for the controller to send signals to the terminal and for the receiving terminal to send signals to the controller.
7. The reel-type wireless charger as defined in claim 6, wherein: the device also comprises a detection unit;
the detection unit is used for detecting whether a terminal exists in a preset range, if so, generating an out-of-band communication starting signal, sending the out-of-band communication starting signal to the terminal through the communication module, and triggering the controller to initialize;
The controller is also used for generating a terminal voltage inquiry signal, sending the terminal voltage inquiry signal to the terminal through the communication module, and acquiring terminal voltage replied by the terminal through the communication module; the terminal voltage generation circuit is also used for judging whether the terminal voltage is smaller than a preset charging voltage threshold value, if so, starting a maximum channel of a maximum coil to charge, and generating a terminal channel step-by-step adjustment signal after the terminal voltage reaches the preset charging voltage threshold value; if not, generating a terminal channel step-by-step adjustment signal.
8. The reel-type wireless charger as defined in claim 5, wherein: the shape of the charging coil is any one or combination of two of a circle and a polygon, each charging coil is a coil with a plurality of turns, and each charging coil is provided with a multipath controller port for connecting a fixed electrode.
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| CN113991891A (en) | 2022-01-28 |
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