CN113964959A - Wireless charging method and wireless charging device - Google Patents
Wireless charging method and wireless charging device Download PDFInfo
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- CN113964959A CN113964959A CN202111415265.4A CN202111415265A CN113964959A CN 113964959 A CN113964959 A CN 113964959A CN 202111415265 A CN202111415265 A CN 202111415265A CN 113964959 A CN113964959 A CN 113964959A
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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
- H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a wireless charging method and a wireless charging device, wherein the method comprises the following steps: the charging control module detects the Q value of the charging coil module in the process that the charging coil module sends electromagnetic waves; the charging control module judges whether metal foreign matter exists on the charging coil module according to the Q value of the charging coil module; if so, the charging control module controls the charging coil module to stop sending electromagnetic waves; if not, the charging control module controls the charging coil module to continue to send electromagnetic waves. According to the invention, the Q value of the charging coil module is detected by the charging control module in the process of sending electromagnetic waves by the charging coil module, so that whether metal foreign matters exist on the charging coil module can be judged, the charging energy loss is reduced, safety accidents caused by high temperature generated by the metal foreign matters can be effectively avoided, and the safety of wireless charging is improved.
Description
Technical Field
The present invention relates to the field of wireless charging technologies, and in particular, to a wireless charging method and a wireless charging device.
Background
The wireless charging technology is a novel technology for charging by utilizing the electromagnetic induction principle. The existing wireless charging technology generally includes a transmitting coil and a receiving coil, wherein the transmitting coil is connected to a wired power supply and converts electric energy into electromagnetic energy, and the receiving coil receives the electromagnetic energy from the transmitting coil through electromagnetic induction, so as to generate current for charging a battery or supplying power to equipment. Nowadays, charging technology of more and more electronic products, such as smart phones, tablet computers, wireless headsets, smart watches, etc., gradually develops to be wireless.
At present, if an electronic product with a receiving coil but a metal foreign body (including metal, ferromagnetic material and the like) is placed on a transmitting coil, eddy current loss and hysteresis loss of the transmitting coil can be caused, so that the transmitting coil is heated, and certain potential safety hazard is brought.
Therefore, it is necessary to detect the metallic foreign matter before wireless charging.
The above information is given as background information only to aid in understanding the present disclosure, and no determination or admission is made as to whether any of the above is available as prior art against the present disclosure.
Disclosure of Invention
The invention provides a wireless charging method and a wireless charging device, which are used for solving the defects of the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, an embodiment of the present invention provides a wireless charging method, which is applied to a wireless charging device, where the wireless charging device includes a charging coil module, a charging connection line, and a charging control module, which are connected in sequence, and the method includes:
the charging control module detects the Q value of the charging coil module in the process that the charging coil module sends electromagnetic waves;
the charging control module judges whether metal foreign matter exists on the charging coil module according to the Q value of the charging coil module;
if so, the charging control module controls the charging coil module to stop sending electromagnetic waves;
if not, the charging control module controls the charging coil module to continue to send electromagnetic waves.
Further, in the wireless charging method, the charging coil module is a charging coil module capable of being charged on both sides;
then, the step of the charging control module controlling the charging coil module to stop transmitting electromagnetic waves includes:
the charging control module judges which surface of the charging coil module has metal foreign matters;
the charging control module controls the surface of the charging coil module, on which the metal foreign matter exists, to stop sending the electromagnetic wave.
Further, in the wireless charging method, the charging control module has a near field communication chip;
then, the step of the charging control module controlling the charging coil module to continue transmitting the electromagnetic wave includes:
the charging control module acquires ID identity information corresponding to an electronic product through the near field communication chip;
the charging control module acquires charging power matched with the ID identity information from a database according to the ID identity information;
and the charging control module controls the charging coil module to continuously send electromagnetic waves and charges the electronic product according to the charging power.
Further, in the wireless charging method, the charging control module has a communication interface, and establishes a connection with the vehicle machine through the communication interface;
then, after the step of controlling, by the charging control module, the charging coil module to continue sending electromagnetic waves and charging the electronic product according to the charging power, the method further includes:
and the charging control module sends the ID identity information to a vehicle machine through the communication interface so as to trigger the vehicle machine to start a vehicle and/or adjust the personalized configuration of the vehicle according to the ID identity information.
Further, in the wireless charging method, after the step of the charging control module controlling the charging coil module to stop transmitting electromagnetic waves, the method further includes:
the charging module controls the result of detecting the metal foreign bodies to be sent to the car machine through the communication interface so as to trigger the car machine to send an alarm prompt for removing the metal foreign bodies.
In a second aspect, an embodiment of the present invention provides a wireless charging device, including a charging coil module, a charging connection line, and a charging control module, which are connected in sequence;
the charging control module is used for detecting the Q value of the charging coil module in the process of sending electromagnetic waves by the charging coil module;
the charging control module is used for judging whether metal foreign matters exist on the charging coil module according to the Q value of the charging coil module;
if yes, the charging control module is used for controlling the charging coil module to stop sending electromagnetic waves;
and if not, the charging control module is used for controlling the charging coil module to continuously send the electromagnetic waves.
Furthermore, in the wireless charging device, the charging coil module is a charging coil module capable of being charged on both sides;
then, the step executed by the charging control module to control the charging coil module to stop sending electromagnetic waves includes:
the charging control module judges which surface of the charging coil module has metal foreign matters;
the charging control module controls the surface of the charging coil module, on which the metal foreign matter exists, to stop sending the electromagnetic wave.
Further, in the wireless charging device, the charging control module has a near field communication chip;
then, the step executed by the charging control module to control the charging coil module to continue sending electromagnetic waves includes:
the charging control module acquires ID identity information corresponding to an electronic product through the near field communication chip;
the charging control module acquires charging power matched with the ID identity information from a database according to the ID identity information;
and the charging control module controls the charging coil module to continuously send electromagnetic waves and charges the electronic product according to the charging power.
Further, in the wireless charging device, the charging control module has a communication interface, and establishes a connection with the vehicle machine through the communication interface;
and the charging control module is further configured to, after the step of controlling the charging coil module to continue sending electromagnetic waves and charging the electronic product according to the charging power is executed, send the ID information to the in-vehicle device through the communication interface, so as to trigger the in-vehicle device to start the vehicle and/or adjust the personalized configuration of the vehicle according to the ID information.
Further, in the wireless charging device, the charging module control is further configured to send a result of detecting the metal foreign object to a vehicle machine through the communication interface after executing the step of controlling the charging coil module to stop sending electromagnetic waves, so as to trigger the vehicle machine to send an alarm prompt for removing the metal foreign object.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the wireless charging method and the wireless charging device provided by the embodiment of the invention, the Q value of the charging coil module is detected through the charging control module in the process of sending electromagnetic waves by the charging coil module, whether metal foreign matters exist on the charging coil module can be judged, the charging energy loss is reduced, safety accidents caused by high temperature generated by the metal foreign matters can be effectively avoided, and the safety of wireless charging is improved.
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, and 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 these drawings without inventive exercise.
Fig. 1 is a schematic flowchart of a wireless charging method according to an embodiment of the present invention;
fig. 2 is a schematic structural bottom view of a wireless charging device according to an embodiment of the present invention;
fig. 3 is a schematic structural side view of a wireless charging device according to an embodiment of the present invention;
fig. 4 is a schematic top view illustrating a structure of a wireless charging device according to an embodiment of the present invention.
Reference numerals:
the charging coil module 10, the charging connecting wire 20 and the charging control module 30;
ferrite 11, charging coil 12;
the device comprises an aluminum alloy shell 31, a circuit board 32, a microprocessor 33, a near field communication chip 34, a CAN bus interface 35 and a LIN bus interface 36.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
In view of the above-mentioned drawbacks of the conventional wireless charging technology, the applicant of the present invention has made extensive practical experience and professional knowledge in many years based on the field design and manufacture, and has actively researched and innovated in cooperation with the application of theory, so as to hopefully create a technology capable of solving the drawbacks of the conventional technology, and make the wireless charging technology more practical. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.
The embodiment of the invention provides a wireless charging method, which is suitable for a scene that an electronic product is charged by utilizing a wireless charging technology, and is applied to a wireless charging device, wherein the wireless charging device comprises a charging coil module 10, a charging connecting wire 20 and a charging control module 30 which are sequentially connected, and the device can be realized by software and/or hardware.
As shown in fig. 2, the charging coil module 10 includes ferrite 11 and the charging coil 12 disposed on the ferrite 11, the number of the charging coil 12 is three, three the charging coil 12 is overlapped and arranged, compared with the conventional single coil, not only the charging range is widened, but also the charging effect of smooth and uninterrupted charging of each coil is realized, some special scenes are avoided, for example, the problem of accidental charging interruption caused by the fact that a mobile phone deviates from the charging coil 12 when the vehicle bumps, and the stability of wireless charging is ensured. Of course, the number of the charging coils 12 may be two or more.
In a specific application, such as an automobile, the charging coil module 10 is not convenient to be combined with the charging control module 30 due to the compact and narrow interior space of the automobile, so the present embodiment considers that the charging coil module 10 and the charging control module 30 are deployed in a remote distribution manner, i.e., a remote connection is realized through the charging connection line 20.
The charging control module 30 includes an aluminum alloy housing 31, a circuit board 32, and a microprocessor 33; the circuit board 32 and the microprocessor 33 are disposed in the aluminum alloy case 31, and the microprocessor 33 is disposed on the circuit board 32. Compared with the traditional plastic shell, the aluminum alloy shell 31 not only optimizes heat dissipation so as to improve the stability of the system, but also conforms to the EMC electromagnetic compatibility radiation specification of the automobile.
Referring to fig. 1, fig. 1 is a schematic flow chart of a wireless charging method according to an embodiment of the present invention, where the method specifically includes the following steps:
s101, the charging control module detects the Q value of the charging coil module in the process that the charging coil module sends electromagnetic waves.
S102, the charging control module judges whether metal foreign matter exists on the charging coil module according to the Q value of the charging coil module. If yes, step S103 is executed, and if no, step S104 is executed.
S103, the charging control module controls the charging coil module to stop sending electromagnetic waves.
In this embodiment, the charging coil module 10 is a charging coil module capable of being charged on both sides; namely, both faces of the ferrite 11 are provided with the charging coils 12;
then, the step S103 can be further detailed as:
the charging control module judges which surface of the charging coil module has metal foreign matters;
the charging control module controls the surface of the charging coil module, on which the metal foreign matter exists, to stop sending the electromagnetic wave.
It should be noted that, in order not to affect the normal charging of the surface without the metallic foreign object, in this embodiment, after the metallic foreign object is detected, the charging control module determines which surface of the charging coil module has the metallic foreign object, and then only controls the surface of the charging coil module having the metallic foreign object to stop sending the electromagnetic wave.
In addition, the microprocessor controls the MOSFET array or the IGBT array to drive the charging coil module, and the 15W wireless flash charging function with two sides not interfering with each other and being independent is achieved.
And S104, the charging control module controls the charging coil module to continuously send electromagnetic waves.
In the present embodiment, the charging control module has a near field communication chip 34; namely, the circuit board 32 is further provided with the near field communication chip 34;
then, the step S104 can be further detailed as:
the charging control module acquires ID identity information corresponding to an electronic product through the near field communication chip;
the charging control module acquires charging power matched with the ID identity information from a database according to the ID identity information;
and the charging control module controls the charging coil module to continuously send electromagnetic waves and charges the electronic product according to the charging power.
It should be noted that, in this embodiment, for the charged electronic products, the charging power most suitable for the charged electronic products is recorded, so that when the wireless charging service is provided for the electronic products again in the following, the charging power associated with the ID information can be automatically determined according to the unique ID information corresponding to the electronic products, and the electronic products are charged according to the charging power.
In this embodiment, the charging control module has a communication interface, and establishes a connection with the vehicle device through the communication interface; preferably, the communication interface CAN select the CAN bus interface 35 and/or the LIN bus interface 36; namely, the CAN bus interface 35 and/or the LIN bus interface 36 are/is further arranged on the circuit board 32;
then, after the step of controlling, by the charging control module, the charging coil module to continue sending electromagnetic waves and charging the electronic product according to the charging power, the method further includes:
and the charging control module sends the ID identity information to a vehicle machine through the communication interface so as to trigger the vehicle machine to start a vehicle and/or adjust the personalized configuration of the vehicle according to the ID identity information.
It should be noted that, in this embodiment, the wireless charging state information and/or the ID information may be sent to the vehicle-to-vehicle interconnection of the vehicle through the 1-way CAN bus or the 1-way LIN bus. The ID information can be used as a certificate for whether the vehicle can be legally started or not, or can provide a better use experience for a user, such as personalized configuration of automatically adjusting the seat width, the color of a lamp in an automobile interior range, the height of an active air suspension and the like.
In this embodiment, after the step S103, the method may further include the following steps:
the charging module controls the result of detecting the metal foreign bodies to be sent to the car machine through the communication interface so as to trigger the car machine to send an alarm prompt for removing the metal foreign bodies.
Of course, the wireless charging device may also be provided with a speaker for warning.
According to the wireless charging method provided by the embodiment of the invention, the Q value of the charging coil module is detected by the charging control module in the process of sending electromagnetic waves by the charging coil module, so that whether metal foreign matters exist on the charging coil module can be judged, the charging energy loss is reduced, safety accidents caused by high temperature generated by the metal foreign matters can be effectively avoided, and the safety of wireless charging is improved.
Example four
Fig. 2 to 4 are schematic structural diagrams of a wireless charging device according to a fourth embodiment of the present invention, which is suitable for executing the wireless charging method according to the fourth embodiment of the present invention. The wireless charging device comprises a charging coil module 10, a charging connecting wire 20 and a charging control module 30 which are connected in sequence;
the charging coil module 10 comprises a ferrite 11 and a charging coil 12 arranged on the ferrite 11; the quantity of charging coil 12 is three, three charging coil 12 overlap arranges, for traditional single coil, not only charging range becomes wide, has realized the smooth and smooth uninterrupted effect of charging of each coil moreover, has avoided some special scenes, for example the vehicle meets the problem that the mobile phone deviates charging coil 12 and unexpected charging was interrupted when jolting, has ensured wireless stability of charging. Of course, the number of the charging coils 12 may be two or more.
The charging control module 30 includes an aluminum alloy housing 31, a circuit board 32, and a microprocessor 33; the circuit board 32 and the microprocessor 33 are disposed in the aluminum alloy case 31, and the microprocessor 33 is disposed on the circuit board 32. Compared with the traditional plastic shell, the aluminum alloy shell 31 not only optimizes the heat dissipation, thereby improving the system stability, but also conforms to the EMC electromagnetic compatibility radiation specification of the automobile;
the charging control module 30 is configured to detect a Q value of the charging coil module 10 in a process that the charging coil module 10 transmits electromagnetic waves;
the charging control module 30 is configured to determine whether a metal foreign object exists on the charging coil module 10 according to a Q value of the charging coil module 10;
if yes, the charging control module 30 is configured to control the charging coil module 10 to stop sending electromagnetic waves;
if not, the charging control module 30 is configured to control the charging coil module 10 to continue sending electromagnetic waves.
Preferably, the charging coil module 10 is a double-sided chargeable charging coil module 10; namely, both faces of the ferrite 11 are provided with the charging coils 12;
then, the step of controlling the charging coil module 10 to stop transmitting electromagnetic waves, which is performed by the charging control module 30, includes:
the charging control module 30 determines which surface of the charging coil module 10 has a metal foreign object;
the charging control module 30 controls the side of the charging coil module 10 where the metallic foreign matter exists to stop transmitting the electromagnetic wave.
Preferably, the charging control module 30 has a near field communication chip 34; namely, the circuit board 32 is further provided with the near field communication chip 34;
then, the step of controlling the charging coil module 10 to continue transmitting electromagnetic waves, which is performed by the charging control module 30, includes:
the charging control module 30 obtains ID information corresponding to the electronic product through the near field communication chip;
the charging control module 30 obtains the charging power matched with the ID information from a database according to the ID information;
the charging control module 30 controls the charging coil module 10 to continue sending electromagnetic waves, and charges the electronic product according to the charging power.
Preferably, the charging control module 30 has a communication interface, and establishes a connection with the car machine through the communication interface; the communication interface CAN select a CAN bus interface 35 and/or a LIN bus interface 36; namely, the CAN bus interface 35 and/or the LIN bus interface 36 are/is further arranged on the circuit board 32;
then, the charging control module 30 is further configured to, after executing the step of controlling the charging coil module 10 to continue sending electromagnetic waves and charging electronic products according to the charging power, send the ID information to the vehicle-mounted device through the communication interface, so as to trigger the vehicle-mounted device to start a vehicle and/or adjust personalized configuration of the vehicle according to the ID information.
Preferably, the charging module control is further configured to, after the step of controlling the charging coil module 10 to stop sending electromagnetic waves is executed, send a result of detecting the metallic foreign object to a vehicle machine through the communication interface, so as to trigger the vehicle machine to send an alarm prompt for removing the metallic foreign object.
According to the wireless charging device provided by the embodiment of the invention, the Q value of the charging coil module is detected by the charging control module in the process of sending electromagnetic waves by the charging coil module, whether metal foreign matters exist on the charging coil module can be judged, so that the charging energy loss is reduced, safety accidents caused by high temperature generated by the metal foreign matters can be effectively avoided, and the safety of wireless charging is improved.
The foregoing description of the embodiments has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same elements or features may also vary in many respects. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous details are set forth, such as examples of specific parts, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and "comprising" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.
When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
Spatially relative terms, such as "inner," "outer," "below," "… …," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted.
Claims (10)
1. The wireless charging method is applied to a wireless charging device, the wireless charging device comprises a charging coil module, a charging connecting wire and a charging control module which are sequentially connected, and the wireless charging method is characterized by comprising the following steps of:
the charging control module detects the Q value of the charging coil module in the process that the charging coil module sends electromagnetic waves;
the charging control module judges whether metal foreign matter exists on the charging coil module according to the Q value of the charging coil module;
if so, the charging control module controls the charging coil module to stop sending electromagnetic waves;
if not, the charging control module controls the charging coil module to continue to send electromagnetic waves.
2. The wireless charging method according to claim 1, wherein the charging coil module is a double-sided chargeable charging coil module;
then, the step of the charging control module controlling the charging coil module to stop transmitting electromagnetic waves includes:
the charging control module judges which surface of the charging coil module has metal foreign matters;
the charging control module controls the surface of the charging coil module, on which the metal foreign matter exists, to stop sending the electromagnetic wave.
3. The wireless charging method according to claim 1, wherein the charging control module has a near field communication chip;
then, the step of the charging control module controlling the charging coil module to continue transmitting the electromagnetic wave includes:
the charging control module acquires ID identity information corresponding to an electronic product through the near field communication chip;
the charging control module acquires charging power matched with the ID identity information from a database according to the ID identity information;
and the charging control module controls the charging coil module to continuously send electromagnetic waves and charges the electronic product according to the charging power.
4. The wireless charging method according to claim 3, wherein the charging control module has a communication interface and establishes a connection with a vehicle machine through the communication interface;
then, after the step of controlling, by the charging control module, the charging coil module to continue sending electromagnetic waves and charging the electronic product according to the charging power, the method further includes:
and the charging control module sends the ID identity information to a vehicle machine through the communication interface so as to trigger the vehicle machine to start a vehicle and/or adjust the personalized configuration of the vehicle according to the ID identity information.
5. The wireless charging method according to claim 4, wherein after the step of the charging control module controlling the charging coil module to stop transmitting electromagnetic waves, the method further comprises:
the charging module controls the result of detecting the metal foreign bodies to be sent to the car machine through the communication interface so as to trigger the car machine to send an alarm prompt for removing the metal foreign bodies.
6. A wireless charging device is characterized by comprising a charging coil module, a charging connecting wire and a charging control module which are sequentially connected;
the charging control module is used for detecting the Q value of the charging coil module in the process of sending electromagnetic waves by the charging coil module;
the charging control module is used for judging whether metal foreign matters exist on the charging coil module according to the Q value of the charging coil module;
if yes, the charging control module is used for controlling the charging coil module to stop sending electromagnetic waves;
and if not, the charging control module is used for controlling the charging coil module to continuously send the electromagnetic waves.
7. The wireless charging device of claim 6, wherein the charging coil module is a double-sided chargeable charging coil module;
then, the step executed by the charging control module to control the charging coil module to stop sending electromagnetic waves includes:
the charging control module judges which surface of the charging coil module has metal foreign matters;
the charging control module controls the surface of the charging coil module, on which the metal foreign matter exists, to stop sending the electromagnetic wave.
8. The wireless charging device of claim 7, wherein the charging control module has a near field communication chip;
then, the step executed by the charging control module to control the charging coil module to continue sending electromagnetic waves includes:
the charging control module acquires ID identity information corresponding to an electronic product through the near field communication chip;
the charging control module acquires charging power matched with the ID identity information from a database according to the ID identity information;
and the charging control module controls the charging coil module to continuously send electromagnetic waves and charges the electronic product according to the charging power.
9. The wireless charging device of claim 8, wherein the charging control module has a communication interface and establishes a connection with a vehicle machine through the communication interface;
and the charging control module is further configured to, after the step of controlling the charging coil module to continue sending electromagnetic waves and charging the electronic product according to the charging power is executed, send the ID information to the in-vehicle device through the communication interface, so as to trigger the in-vehicle device to start the vehicle and/or adjust the personalized configuration of the vehicle according to the ID information.
10. The wireless charging device according to claim 9, wherein the charging module control is further configured to send a result of detecting the metallic foreign object to a vehicle machine through the communication interface after the step of controlling the charging coil module to stop sending the electromagnetic wave is performed, so as to trigger the vehicle machine to send an alarm prompt for removing the metallic foreign object.
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