CN113612318A - Wireless charging device, wireless charging base thereof and wireless charging method - Google Patents
Wireless charging device, wireless charging base thereof and wireless charging method Download PDFInfo
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- CN113612318A CN113612318A CN202110896733.8A CN202110896733A CN113612318A CN 113612318 A CN113612318 A CN 113612318A CN 202110896733 A CN202110896733 A CN 202110896733A CN 113612318 A CN113612318 A CN 113612318A
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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
- H02J50/80—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
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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
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses wireless charging device and wireless charging base and wireless charging method thereof, this wireless charging base includes: a switch switching circuit; the wireless charging coil comprises N electrode ends respectively led out from N different coil positions, wherein N is a positive integer greater than 2; and the controller is connected with the switch switching circuit and used for controlling the switch switching circuit to select 2 electrode ends of the wireless charging coil to be connected according to the current information of the charged equipment, so that the charging efficiency of the charged equipment meets the preset requirement. By the scheme, the charging efficiency of wireless charging can be effectively improved.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a wireless charging device, a wireless charging base and a wireless charging method.
Background
With the development of Wireless charging technology, Wireless charging technology is applied to devices such as mobile phones, watches, TWS (True Wireless Stereo) headsets, and the like.
The wireless charging device mainly comprises two parts, wherein one part is a transmitting end of electric energy, namely a wireless charging base, and the other part is a receiving end of the electric energy, namely a wireless charging receiving end circuit. The wireless charging coil in the sending end can connect power supply, and the wireless charging coil in the receiving end circuit can be integrated in by the battery charging outfit. Currently, the devices supporting wireless charging are mainly divided into two types, one is that the devices are provided with a special wireless charging base, and the other is that a general wireless charging base conforming to Qi standard is used.
If put different by battery charging outfit on general wireless charging base, because the size of the coil on general wireless charging base is fixed, and the different size of the wireless charging coil of receiving terminal integrated on by battery charging outfit is inconsistent, just can lead to when the size of the wireless charging coil of receiving terminal by battery charging outfit and wireless charging coil on the wireless charging base differs great, charging efficiency is very low.
In summary, how to effectively improve the charging efficiency of wireless charging is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a wireless charging device, a wireless charging base thereof and a wireless charging method, so as to effectively improve the charging efficiency of wireless charging.
In order to solve the technical problems, the invention provides the following technical scheme:
a wireless charging base, comprising:
a switch switching circuit;
the wireless charging coil comprises N electrode ends respectively led out from N different coil positions, wherein N is a positive integer greater than 2;
and the controller is connected with the switch switching circuit and is used for controlling the switch switching circuit to select 2 electrode ends of the wireless charging coil to be connected according to the current information of the charged equipment, so that the charging efficiency of the charged equipment meets the preset requirement.
Preferably, the 1 st electrode end to the nth electrode end of the wireless charging coil are sequentially arranged at the positions of the N different coils according to a fixed turn interval.
Preferably, the 1 st electrode end of the wireless charging coil is located at the innermost circle of the wireless charging coil, and the N electrode end of the wireless charging coil is located at the outermost circle of the wireless charging coil.
Preferably, the controller includes the 1 st electrode terminal of the wireless charging coil in 2 electrode terminals of arbitrary selection, or, the controller includes the nth electrode terminal of the wireless charging coil in 2 electrode terminals of arbitrary selection.
Preferably, the controller is specifically configured to:
according to the current information of the charged device, the control switch switching circuit selects 2 electrode terminals of the wireless charging coil to connect, so that the charging efficiency of the charged device is higher than that of the charged device adopting other optional selections.
Preferably, the controller is specifically configured to:
receiving first power transmitted by current charged equipment;
sequentially outputting each electrode selection control signal to the switch switching circuit, wherein each output electrode selection control signal lasts for a first duration;
maintaining the receiving power of the charged device as the first power, and sequentially recording the output power of the wireless charging coil under the condition of outputting each electrode selection control signal;
and taking the recorded electrode selection control signal corresponding to the minimum output power of the wireless charging coil as the determined electrode selection control signal, and outputting the determined electrode selection control signal to the switch switching circuit, so that the switch switching circuit selects 2 electrode ends of the wireless charging coil to connect according to the determined electrode selection control signal, and the charged device is charged.
Preferably, the controller is specifically configured to:
sequentially outputting each electrode selection control signal to the switch switching circuit, wherein each output electrode selection control signal lasts for a first duration;
maintaining the output power of the wireless charging coil as a second power, and sequentially recording the receiving power of the charged device under the condition of outputting each electrode selection control signal;
recording an electrode selection control signal corresponding to the maximum receiving power of the charged equipment as a determined electrode selection control signal;
and outputting the determined electrode selection control signal to the switch switching circuit, so that the switch switching circuit selects 2 electrode ends of the wireless charging coil to connect according to the determined electrode selection control signal, and the charged device is charged.
A wireless charging device, comprising: a wireless charging receiving terminal circuit and a wireless charging base as described in any of the above.
A wireless charging method, comprising:
receiving information of a current charged device;
according to the information of the charged equipment, a switch switching circuit is controlled to select 2 electrode ends of the wireless charging coil to be connected, so that the charging efficiency of the charged equipment meets the preset requirement;
the wireless charging coil is provided with N electrode ends respectively led out from N different coil positions, and N is a positive integer larger than 2.
Preferably, the controlling a switch switching circuit to select 2 electrode terminals of the wireless charging coil to connect according to the information of the charged device, so that the charging efficiency of the charged device meets a preset requirement, includes:
and according to the information of the charged equipment, controlling a switch switching circuit to select 2 electrode ends of the wireless charging coil to connect, so that the charging efficiency of the charged equipment is higher than that of the charged equipment adopting other optional options.
By applying the technical scheme provided by the embodiment of the invention, the reason that the charging efficiency is low in the traditional scheme is considered that the wireless charging coil on the wireless charging base is fixed, and the sizes of the wireless charging coils of the receiving ends integrated on different charged devices are different, namely, the wireless charging coil on the charged device cannot be well matched with the wireless charging coil on the wireless charging base. Moreover, inconvenient adjustment is considered by battery charging outfit in this application, consequently, in the scheme of this application, set up the wireless charging base that can adjust wireless charging coil. Specifically, wireless charging coil among the wireless charging base of this application has N electrode terminals of following N different coil position respectively and drawing forth, and N is for being greater than 2 positive integer, because N electrode terminals are drawn forth from N different coil position respectively, consequently, through selecting required electrode terminal, has just realized the selection to the coil number of turns of wireless charging coil, and then adjustment charge efficiency. When selecting, this application obtains current by the information of battery charging outfit through the controller to control switch switching circuit selection wireless charging coil's 2 electrode terminals are connected, so that the charging efficiency by the battery charging outfit satisfies the preset requirement, that is to say, 2 electrode terminals of the wireless charging coil of current selection should be applicable to current by the information of battery charging outfit, ensure charging efficiency effectively.
To sum up, this application can adjust the wireless charging base of wireless charging coil through the setting, can improve wireless charging efficiency who charges effectively.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wireless charging base according to the present invention;
fig. 2 is a schematic diagram of an electrode configuration of a wireless charging coil in accordance with an embodiment of the present invention;
fig. 3 is a flowchart illustrating an implementation of a wireless charging method according to the present invention.
Detailed Description
The core of the invention is to provide a wireless charging base which can effectively improve the charging efficiency of wireless charging.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a wireless charging base according to the present invention, where the wireless charging base may include:
a switch switching circuit 10;
the wireless charging coil 20 comprises N electrode ends respectively led out from N different coil positions, wherein N is a positive integer larger than 2;
and the controller 30 connected with the switch switching circuit 10 is used for controlling the switch switching circuit 10 to select 2 electrode terminals of the wireless charging coil 20 to connect according to the current information of the charged device, so that the charging efficiency of the charged device meets the preset requirement.
Specifically, the specific circuit configuration of the front stage circuit of the switch switching circuit 10 can be set and adjusted according to actual needs, and for example, the front stage circuit can be implemented by using an oscillator circuit driver and a power MOS transistor.
The preceding stage circuit can carry out electric energy conversion with the alternating current and export to switch switching circuit 10, and export to wireless charging coil 20 by switch switching circuit 10 again to make wireless charging coil 20 pass through magnetic field with energy transmission to the receiving end circuit of the equipment of being charged, realize being charged to the equipment of being charged. Hereinafter, the wireless charging coil 20 is referred to as the wireless charging coil 20 in the wireless charging base, unless otherwise specified.
And it can be understood that N electrode terminals are led out from N different coil positions of the wireless charging coil 20, therefore, for the same device to be charged, the charging efficiency will be different depending on the electrode terminal of the wireless charging coil 20 specifically selected.
N is a positive integer greater than 2, and specific values may be set as needed, for example, in the embodiment of fig. 2, N is 4, and the wireless charging coil 20 in this case has a 1 st electrode terminal, a 2 nd electrode terminal, a 3 rd electrode terminal, and a 4 th electrode terminal.
In practical application, the 1 st electrode end to the nth electrode end of the wireless charging coil 20 may be sequentially disposed at N different coil positions according to a fixed turn interval.
In this kind of embodiment, the number of turns interval of wireless charging coil 20 between the adjacent electrode terminals is fixed, is favorable to realizing the even arrangement of each electrode terminal, just also is favorable to different battery charging outfits to both can conveniently find corresponding 2 suitable electrode terminals, realizes efficient charging.
In one embodiment of the present invention, in order to make the entire wireless charging coil 20 have a chance to function, the N electrode terminals include at least an electrode terminal led out from the innermost circumference and an electrode terminal led out from the outermost circumference. That is, in one embodiment of the present invention, the 1 st electrode end of the wireless charging coil 20 may be located at the innermost circle of the wireless charging coil 20, and the N-th electrode end of the wireless charging coil 20 is located at the outermost circle of the wireless charging coil 20. If the aforementioned scheme of uniformly arranging the electrode terminals is combined, N electrode terminals may be uniformly arranged in the entire wireless charging coil 20 at fixed turn intervals.
Of course, in other specific cases, the position and number of each electrode terminal can be adjusted according to actual needs. For example, in an occasion, consider in certain turn interval at wireless charging coil 20, the position of electrode tip is selected and is influenced great to the charging efficiency of different by battery charging outfit, and many types of by battery charging outfit all need choose this turn interval's electrode tip for use, then except in whole wireless charging coil 20 according to a plurality of electrode tip that fixed turn interval evenly set up, can additionally add a plurality of electrode tip to this turn interval, be favorable to further guaranteeing the suitability of the electrode tip of choosing out, just also can effectively ensure the charging efficiency of this application scheme.
The solution of the present application selects 2 suitable electrode tips by the controller 30. Specifically, the controller 30 may control the switch switching circuit 10 to select 2 electrode terminals of the wireless charging coil 20 to connect according to the information of the current device to be charged, so that the charging efficiency of the device to be charged meets the preset requirement.
The electrode selection control signals output from the controller 30 to the switch switching circuit 10 are different, and the states of the switch switching circuit 10 are different.
After determining the required electrode selection control signal, the controller 30 outputs the determined electrode selection control signal to the switch switching circuit 10, so that the switch switching circuit 10 selects 2 electrode terminals of the wireless charging coil 20 to connect according to the determined electrode selection control signal, so as to charge the device to be charged. Of course, after the information of the charged device is updated, the controller 30 may reselect the desired electrode selection control signal, and when removal of the charged device is detected, the circuit may be turned off. The specific form of the electrode selection control signal may be varied and is typically achieved using a simple electrical signal.
The specific circuit configuration of the switch switching circuit 10 may be set as required, as long as the functional requirements of the present application for the switch switching circuit 10 can be met, for example, in practical applications, the switch switching circuit 10 may be implemented based on a MOS transistor, a triode, or other switching devices.
To control the switch switching circuit 10 to select 2 electrode terminals of the wireless charging coil 20 for connection, so that the charging efficiency of the charged device meets the preset requirement, specific means can be set and adjusted as required, for example, in an occasion, switching of the electrode selection control signal is performed randomly, or switching is performed according to a specified sequence, after each switching, calculation of the current charging efficiency is performed, if the charging efficiency exceeds a preset threshold, switching can be stopped, and the current electrode selection control signal is used as a determined electrode selection instruction for enabling the charging efficiency of the charged device to meet the preset requirement, and then output to the switch switching circuit 10. For another example, the area requirement of the corresponding wireless charging coil 20 may be determined according to the current information of the device to be charged, and then 2 electrode terminals of the wireless charging coil 20 are selected according to the area requirement, so that the electrode selection control signal that needs to be output to the switch switching circuit 10 is determined.
In one embodiment of the present invention, the controller 30 is specifically configured to:
according to the current information of the charged device, the control switch switching circuit 10 selects 2 electrode terminals of the wireless charging coil 20 to connect, so that the charging efficiency of the charged device is higher than that of the charged device adopting other optional selections.
In this embodiment, the charging efficiency of the device to be charged can be the highest, that is, when the controller 30 controls the switch switching circuit 10 to select 2 electrode terminals of the wireless charging coil 20 for connection, there may be multiple selection manners, and the charging efficiency of the device to be charged can meet the preset requirement. Such an embodiment is advantageous for maximizing charging efficiency, reducing energy waste as much as possible, and maximally improving the degree of heat generation during wireless charging.
For example, after receiving the first power sent by the current charged device, according to a preset correspondence table, an electrode selection control signal capable of enabling the charging efficiency of the charged device to be the highest is directly determined, and of course, such a manner needs to be prepared in advance, and an unexpected situation that the actually received first power is not in the preset correspondence table may occur.
In one embodiment of the present invention, the controller 30 may be specifically configured to:
receiving first power transmitted by current charged equipment;
sequentially outputting each electrode selection control signal to the switch switching circuit 10, wherein each output electrode selection control signal lasts for a first duration;
maintaining the received power of the charged device as the first power, and sequentially recording the output power of the wireless charging coil 20 under the condition of outputting each electrode selection control signal;
and taking the electrode selection control signal corresponding to the recorded minimum output power of the wireless charging coil 20 as the determined electrode selection control signal, and outputting the determined electrode selection control signal to the switch switching circuit 10, so that the switch switching circuit 10 selects 2 electrode ends of the wireless charging coil 20 to connect according to the determined electrode selection control signal, so as to charge the charged device.
In this embodiment, the most appropriate electrode selection control signal is determined on a trial-by-trial basis. That is, the controller 30 sequentially outputs each electrode selection control signal to the switch switching circuit 10, and each output electrode selection control signal lasts for a first duration, and the specific value of the first duration can be set and adjusted as required.
Under the condition of maintaining the received power of the charged device to be the first power, the controller 30 may sequentially record the output power of the wireless charging coil 20, that is, the output power of the wireless charging base, in the case of outputting each electrode selection control signal. Since the received power of the charged device is maintained at the first power, the recorded electrode selection control signal corresponding to the minimum output power of the wireless charging coil 20 is used as the electrode selection control signal determined by the current charging by the controller 30, as the recorded output power of the wireless charging coil 20 is smaller, which indicates that the charging efficiency is higher.
In one embodiment of the present invention, the controller 30 is specifically configured to:
sequentially outputting each electrode selection control signal to the switch switching circuit 10, wherein each output electrode selection control signal lasts for a first duration;
maintaining the output power of the wireless charging coil 20 as the second power, and sequentially recording the receiving power of the charged device under the condition of outputting each electrode selection control signal;
recording an electrode selection control signal corresponding to the maximum receiving power of the charged equipment as a determined electrode selection control signal;
and outputting the determined electrode selection control signal to the switch switching circuit 10, so that the switch switching circuit 10 selects 2 electrode terminals of the wireless charging coil 20 to connect according to the determined electrode selection control signal, so as to charge the charged device.
In this embodiment, too, the most suitable electrode selection control signal is determined on a trial-by-trial basis. The difference from the above embodiment is that in this embodiment, the output power of the wireless charging coil 20 is not changed, that is, the output power is the preset second power, and at this time, the received power of the device to be charged when outputting each electrode selection control signal is sequentially recorded, and the electrode selection control signal corresponding to the maximum received power of the device to be charged is the electrode selection control signal that is required to maximize the charging efficiency. In practical applications, after the electrode selection control signal is determined, when the device to be charged needs to be charged, the received power of the device to be charged may be maintained as the first power, where the first power may be the received first power currently sent by the device to be charged, and the front-stage circuit may be controlled in a feedback adjustment manner, so that the received power of the device to be charged reaches the first power.
In an embodiment of the present invention, the 2 electrode terminals selected at any time by the controller 30 include the 1 st electrode terminal of the wireless charging coil 20, or the 2 electrode terminals selected at any time by the controller 30 include the nth electrode terminal of the wireless charging coil 20.
The wireless charging coil 20 of this application has set up N electrode terminal, and in this kind of implementation, if considering from the permission choose 2 electrode terminals wantonly to switch on, the design of switch switching circuit 10 can be comparatively complicated, especially when the value of N is great. In addition, if the controller 30 determines the most appropriate electrode selection command by testing one by one according to the foregoing embodiment, this embodiment is equivalent to reducing the number of types of electrode selection control signals, which is advantageous to more quickly determine the most appropriate electrode selection control signal currently required.
In this embodiment, 1 of the 2 selected electrode terminals may be fixed, which may greatly simplify the complexity of the switching circuit 10, and may also facilitate more rapid determination of the currently required most appropriate electrode selection control signal in some cases. Moreover, this kind of fixed electrode terminal of choosing is considered in this kind of implementation, when setting up at the innermost circle or the outermost circle of wireless charging coil 20, be favorable to making whole wireless charging coil 20 all can play a role, ensure wireless charging base's application scope promptly, consequently, in this kind of implementation, all include the 1 st electrode terminal of wireless charging coil 20 in 2 electrode terminals that controller 30 once selected wantonly, the electrode terminal that the innermost circle department of wireless charging coil 20 was drawn forth promptly. Or, the controller 30 includes the nth electrode end of the wireless charging coil 20 in 2 electrode ends selected at any time, that is, the electrode end led out from the outermost circle of the wireless charging coil 20.
In practical application, the electrode terminal of the wireless charging coil 20 may be directly and fixedly connected to the previous stage circuit through a conducting wire of the switch switching circuit 10, and of course, the electrode terminal may also be connected through another means, such as a normally closed relay, so as to allow the controller 30 to still have the ability to control the electrode terminal of the wireless charging coil 20 to be in an off state with the previous stage circuit under special needs.
By applying the technical scheme provided by the embodiment of the invention, the reason that the charging efficiency is low in the conventional scheme is considered that the wireless charging coil 20 on the wireless charging base is fixed, but the sizes of the wireless charging coils of the receiving ends integrated on different charged devices are different, that is, the wireless charging coil on the charged device cannot be well matched with the wireless charging coil 20 on the wireless charging base. Moreover, inconvenient adjustment by the battery charging outfit is considered in this application, therefore, in the scheme of this application, set up the wireless charging base that can adjust wireless charging coil 20. Specifically, wireless charging coil 20 among the wireless charging base of this application has N electrode terminals of following N different coil position respectively and drawing forth, and N is for being greater than 2 positive integer, because N electrode terminals are drawn forth from N different coil position respectively, consequently, through selecting required electrode terminal, has just realized the selection to wireless charging coil 20's the coil number of turns, and then adjustment charge efficiency. When the charging device is selected, the controller 30 obtains the information of the current charged device, so that the switch switching circuit 10 is controlled to select 2 electrode terminals of the wireless charging coil 20 to connect, so that the charging efficiency of the charged device meets the preset requirement, that is, the currently selected 2 electrode terminals of the wireless charging coil 20 should be suitable for the information of the current charged device, and the charging efficiency is effectively guaranteed.
To sum up, this application can adjust wireless charging coil 20's wireless charging base through the setting, can improve wireless charging's charge efficiency effectively.
Corresponding to the above embodiments, an embodiment of the present invention further provides a wireless charging device, including: a wireless charging receiving circuit and a wireless charging base as in any of the above embodiments. The wireless charging receiving terminal circuit may be integrated in a device to be charged, and the wireless charging base may refer to the above description.
Corresponding to the above embodiment, an embodiment of the present invention further provides a wireless charging method, which may refer to fig. 3 and include:
step S301: receiving information of a current charged device;
step S302: according to the information of the charged equipment, the control switch switching circuit selects 2 electrode ends of the wireless charging coil to connect, so that the charging efficiency of the charged equipment meets the preset requirement;
the wireless charging coil is provided with N electrode ends respectively led out from N different coil positions, and N is a positive integer larger than 2.
In an embodiment of the present invention, step S302 may include:
according to the information of the charged device, the control switch switching circuit selects 2 electrode ends of the wireless charging coil to connect, so that the charging efficiency of the charged device is higher than that of the charged device adopting other optional selections.
In one embodiment of the present invention, step S302 includes:
receiving first power transmitted by current charged equipment;
sequentially outputting each electrode selection control signal to a switch switching circuit, wherein each output electrode selection control signal lasts for a first duration;
maintaining the received power of the charged device as a first power, and sequentially recording the output power of the wireless charging coil under the condition of outputting each electrode selection control signal;
and taking the electrode selection control signal corresponding to the recorded minimum output power of the wireless charging coil as the determined electrode selection control signal, and outputting the determined electrode selection control signal to the switch switching circuit, so that the switch switching circuit selects 2 electrode ends of the wireless charging coil to connect according to the determined electrode selection control signal, and the charged equipment is charged.
In one embodiment of the present invention, step S301 includes:
sequentially outputting each electrode selection control signal to a switch switching circuit, wherein each output electrode selection control signal lasts for a first duration;
maintaining the output power of the wireless charging coil as a second power, and sequentially recording the receiving power of the wireless charging coil under the condition of outputting each electrode selection control signal;
recording an electrode selection control signal corresponding to the maximum receiving power of the charged equipment as a determined electrode selection control signal;
and outputting the determined electrode selection control signal to a switch switching circuit so that the switch switching circuit selects 2 electrode ends of the wireless charging coil to connect according to the determined electrode selection control signal, so as to charge the charged equipment.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The principle and the implementation of the present invention are explained in the present application by using specific examples, and the above description of the embodiments is only used to help understanding the technical solution and the core idea of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A wireless charging base, comprising:
a switch switching circuit;
the wireless charging coil comprises N electrode ends respectively led out from N different coil positions, wherein N is a positive integer greater than 2;
and the controller is connected with the switch switching circuit and is used for controlling the switch switching circuit to select 2 electrode ends of the wireless charging coil to be connected according to the current information of the charged equipment, so that the charging efficiency of the charged equipment meets the preset requirement.
2. The wireless charging base of claim 1, wherein the 1 st to nth electrode ends of the wireless charging coil are sequentially disposed at N different coil positions at fixed turn intervals.
3. The wireless charging base of claim 1, wherein the 1 st electrode end of the wireless charging coil is located at the innermost circle of the wireless charging coil, and the N electrode end of the wireless charging coil is located at the outermost circle of the wireless charging coil.
4. The wireless charging base according to claim 3, wherein the 2 electrode terminals selected at any time by the controller comprise the 1 st electrode terminal of the wireless charging coil, or the 2 electrode terminals selected at any time by the controller comprise the N electrode terminal of the wireless charging coil.
5. The wireless charging base of any one of claims 1 to 4, wherein the controller is specifically configured to:
according to the current information of the charged device, the control switch switching circuit selects 2 electrode terminals of the wireless charging coil to connect, so that the charging efficiency of the charged device is higher than that of the charged device adopting other optional selections.
6. The wireless charging base of claim 5, wherein the controller is specifically configured to:
receiving first power transmitted by current charged equipment;
sequentially outputting each electrode selection control signal to the switch switching circuit, wherein each output electrode selection control signal lasts for a first duration;
maintaining the receiving power of the charged device as the first power, and sequentially recording the output power of the wireless charging coil under the condition of outputting each electrode selection control signal;
and taking the recorded electrode selection control signal corresponding to the minimum output power of the wireless charging coil as the determined electrode selection control signal, and outputting the determined electrode selection control signal to the switch switching circuit, so that the switch switching circuit selects 2 electrode ends of the wireless charging coil to connect according to the determined electrode selection control signal, and the charged device is charged.
7. The wireless charging base of claim 5, wherein the controller is specifically configured to:
sequentially outputting each electrode selection control signal to the switch switching circuit, wherein each output electrode selection control signal lasts for a first duration;
maintaining the output power of the wireless charging coil as a second power, and sequentially recording the receiving power of the charged device under the condition of outputting each electrode selection control signal;
recording an electrode selection control signal corresponding to the maximum receiving power of the charged equipment as a determined electrode selection control signal;
and outputting the determined electrode selection control signal to the switch switching circuit, so that the switch switching circuit selects 2 electrode ends of the wireless charging coil to connect according to the determined electrode selection control signal, and the charged device is charged.
8. A wireless charging device, comprising: a wireless charging receiving end circuit and a wireless charging base as claimed in any one of claims 1 to 7.
9. A wireless charging method, comprising:
receiving information of a current charged device;
according to the information of the charged equipment, a switch switching circuit is controlled to select 2 electrode ends of the wireless charging coil to be connected, so that the charging efficiency of the charged equipment meets the preset requirement;
the wireless charging coil is provided with N electrode ends respectively led out from N different coil positions, and N is a positive integer larger than 2.
10. The wireless charging method according to claim 9, wherein the controlling a switch switching circuit to select 2 electrode terminals of the wireless charging coil to connect according to the information of the charged device, so that the charging efficiency of the charged device meets a preset requirement comprises:
and according to the information of the charged equipment, controlling a switch switching circuit to select 2 electrode ends of the wireless charging coil to connect, so that the charging efficiency of the charged equipment is higher than that of the charged equipment adopting other optional options.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110896733.8A CN113612318B (en) | 2021-08-05 | 2021-08-05 | Wireless charging device, wireless charging base thereof and wireless charging method |
| PCT/CN2021/138658 WO2023010761A1 (en) | 2021-08-05 | 2021-12-16 | Wireless charging device, wireless charging base thereof, and wireless charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110896733.8A CN113612318B (en) | 2021-08-05 | 2021-08-05 | Wireless charging device, wireless charging base thereof and wireless charging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113612318A true CN113612318A (en) | 2021-11-05 |
| CN113612318B CN113612318B (en) | 2022-11-22 |
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| WO (1) | WO2023010761A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023010761A1 (en) * | 2021-08-05 | 2023-02-09 | 歌尔股份有限公司 | Wireless charging device, wireless charging base thereof, and wireless charging method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113612318B (en) * | 2021-08-05 | 2022-11-22 | 歌尔科技有限公司 | Wireless charging device, wireless charging base thereof and wireless charging method |
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- 2021-12-16 WO PCT/CN2021/138658 patent/WO2023010761A1/en unknown
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| CN106911191A (en) * | 2015-12-22 | 2017-06-30 | 比亚迪股份有限公司 | Wireless charging emitter, wireless charging system and electric automobile |
| CN105826066A (en) * | 2016-05-16 | 2016-08-03 | 上海墨百意信息科技有限公司 | Coil applied to wireless charging system and inductance adjusting method |
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| WO2023010761A1 (en) * | 2021-08-05 | 2023-02-09 | 歌尔股份有限公司 | Wireless charging device, wireless charging base thereof, and wireless charging method |
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| Publication number | Publication date |
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| WO2023010761A1 (en) | 2023-02-09 |
| CN113612318B (en) | 2022-11-22 |
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