CN113937902B - Wireless charging foreign matter removing device, foreign matter removing method, electronic equipment and storage medium - Google Patents

Wireless charging foreign matter removing device, foreign matter removing method, electronic equipment and storage medium Download PDF

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Publication number
CN113937902B
CN113937902B CN202111269938.XA CN202111269938A CN113937902B CN 113937902 B CN113937902 B CN 113937902B CN 202111269938 A CN202111269938 A CN 202111269938A CN 113937902 B CN113937902 B CN 113937902B
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CN
China
Prior art keywords
electromagnetic driving
foreign matter
power supply
coil
driving piece
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Application number
CN202111269938.XA
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Chinese (zh)
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CN113937902A (en
Inventor
谢芳
牛段段
王宁
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Dongfeng Nissan Passenger Vehicle Co
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Dongfeng Nissan Passenger Vehicle Co
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Priority to CN202111269938.XA priority Critical patent/CN113937902B/en
Publication of CN113937902A publication Critical patent/CN113937902A/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • 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
    • 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
    • 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
    • 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
    • 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

Abstract

The invention discloses a wireless charging foreign matter removing device, a foreign matter removing method, electronic equipment and a storage medium. The device comprises: the device comprises a power supply module, a foreign matter removing module and a control module, wherein the foreign matter removing module is arranged above a ground end charging coil; the foreign matter removal module comprises a first surface structure and a third surface structure, wherein the first surface structure is provided with a first electromagnetic driving piece, and a second electromagnetic driving piece is arranged at a position, corresponding to the first electromagnetic driving piece, of the third surface structure; when the power module is electrically connected with the first electromagnetic driving piece and/or the second electromagnetic driving piece, the first electromagnetic driving piece and/or the second electromagnetic driving piece intermittently generate electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece. According to the invention, foreign matters of the wireless charging system are removed through the electrical performance, so that the problem of aging of the spring is avoided, and meanwhile, the metal spring can be prevented from being heated at the wireless charging ground terminal.

Description

Wireless charging foreign matter removing device, foreign matter removing method, electronic equipment and storage medium
Technical Field
The invention relates to the technical field of automobiles, in particular to a wireless charging foreign matter removing device, a foreign matter removing method, electronic equipment and a storage medium.
Background
When the wireless charging function of the electric automobile is started, foreign matters possibly exist between a power transmission unit and a power receiving unit of the wireless charging equipment, foreign matters interfere with the power transmission unit and the power receiving unit to reduce the charging efficiency, and the metal foreign matters are affected by a magnetic field to heat, so that potential safety hazards such as smoke generation and fire are caused.
Accordingly, the prior art provides a wireless charging foreign matter removal device for removing foreign matters on a wireless charging apparatus. However, the existing wireless charged foreign matter removing device performs foreign matter removal by generating mechanical vibration through motor driving through the cooperation of a spring and a motor. Therefore, the existing foreign matter removing device is complex in structure and low in reliability and service life.
Disclosure of Invention
Based on this, it is necessary to provide a wireless charging foreign matter removing device, a foreign matter removing method, an electronic apparatus and a storage medium, which solve the technical problems of complicated structure, low reliability and short lifetime of the wireless charging foreign matter removing device in the prior art.
The invention provides a wireless charging foreign matter removing device, comprising: the device comprises a power supply module, a foreign matter removal module and a control module, wherein the foreign matter removal module is arranged above a ground end charging coil;
The foreign matter removal module comprises a first surface structure and a third surface structure, the first surface structure is arranged above the third surface structure, the first surface structure is provided with a first electromagnetic driving piece, and a second electromagnetic driving piece is arranged at a position, corresponding to the first electromagnetic driving piece, of the third surface structure;
the control module controls the on-off of the power module and the first electromagnetic driving piece and/or the second electromagnetic driving piece, and when the power module is electrically connected with the first electromagnetic driving piece and/or the second electromagnetic driving piece, the first electromagnetic driving piece and/or the second electromagnetic driving piece intermittently generates electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece.
Further, the device further comprises a second surface structure arranged between the first surface structure and the third surface structure, the second surface structure is tightly attached to the first surface structure, the first electromagnetic driving piece is arranged between the first surface structure and the second surface structure, and the second electromagnetic driving piece is arranged between the second surface structure and the third surface structure.
Further, the first surface structure and the second surface structure are made of flexible and stretchable materials, and the third surface structure is made of nonmetallic hard materials.
Further, the first side of the upper surface of the first surface structure is connected with the first side of the lower surface of the third surface structure, the first electromagnetic driving parts are multiple, part of the first electromagnetic driving parts are arranged close to the first side of the upper surface, the other part of the first electromagnetic driving parts are far away from the first side of the upper surface, the second electromagnetic driving parts are multiple, part of the second electromagnetic driving parts are arranged close to the first side of the lower surface, and the other part of the second electromagnetic driving parts are far away from the first side of the lower surface;
the number of the first electromagnetic driving members arranged away from the first edge of the upper surface is greater than the number of the first electromagnetic driving members arranged close to the first edge of the upper surface;
the number of the second electromagnetic driving members disposed away from the first side of the lower surface is greater than the number of the second electromagnetic driving members disposed close to the first side of the lower surface.
Further, the foreign matter removal module has an inclination angle with the ground.
Still further, the angle of the tilt angle is determined based on the number of first electromagnetic drives, the number of second electromagnetic drives, the softness of the first surface structure, the surface friction of the first surface structure, and/or the characteristic parameters of the power module.
Further:
the first electromagnetic driving piece is a first coil, the second electromagnetic driving piece is a second coil, the power module comprises a first power supply connected or disconnected with the first coil and a second power supply connected or disconnected with the second coil, the first power supply is connected with the first coil, and when the second power supply is connected with the second coil, the first power supply provides first alternating current for the first coil, the second power supply provides second alternating current for the second coil, and the phase difference of the first alternating current and the second alternating current is preset.
Further, the power module comprises a main power supply and a power supply phase shifter electrically connected with the main power supply;
the total power supply is used as the first power supply, and the output power supply of the power supply phase shifter is used as the second power supply; or alternatively
The total power supply is used as the second power supply, and the output power supply of the power supply phase shifter is used as the first power supply.
Further:
the first electromagnetic driving piece is a first coil, the second electromagnetic driving piece is a second coil, and the power supply module comprises a first power supply connected or disconnected with the first coil and a second power supply connected or disconnected with the second coil;
the first power supply is connected with the first coil, and when the second power supply is connected with the second coil, the first power supply provides alternating current for the first coil, and the second power supply provides direct current for the second coil; or alternatively
The first power supply is connected with the first coil, and when the second power supply is connected with the second coil, the first power supply provides direct current for the first coil, and the second power supply provides alternating current for the second coil.
Further:
the first electromagnetic driving piece is a first coil, the second electromagnetic driving piece is a magnet, and the power module comprises a third power supply connected with or disconnected from the first coil, and the third power supply provides alternating current.
Further:
the first electromagnetic driving piece is a first coil, the second electromagnetic driving piece is a magnet, the power module comprises a fourth power supply connected with or disconnected from the first coil, the fourth power supply outputs square wave current, and the square wave current drives the first coil to generate electromagnetic force for repelling the magnet.
Still further, still include: and the foreign matter detection module is used for detecting whether foreign matters exist or not, and the foreign matter detection module is in communication connection with the control module.
The invention provides a foreign matter removing method of a wireless charging foreign matter removing device, comprising the following steps:
detecting whether a foreign object exists in response to a wireless charging request of the vehicle;
if it is determined that a foreign object exists, performing a foreign object removal operation until detection determines that no foreign object exists, wherein the foreign object removal operation includes: the control power supply module is electrically connected with the first electromagnetic driving piece and/or the second electromagnetic driving piece, and in a first time period, the control power supply module outputs current to drive the first electromagnetic driving piece and the second electromagnetic driving piece to intermittently generate electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece, and after the first time period, the control power supply module stops outputting current and detects whether foreign matters exist again;
and if no foreign matter is judged, controlling the vehicle to start wireless charging.
Further, the judging whether to detect the foreign matter specifically includes:
controlling the vehicle to perform wireless charging within a preset second time;
after the preset second time, stopping wireless charging to obtain the temperature distribution of the ground end surface;
And if the temperature distribution meets the preset foreign matter temperature distribution condition, judging that the foreign matter exists, otherwise, judging that the foreign matter does not exist.
The present invention provides an electronic device including:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to at least one of the processors; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by at least one of the processors to enable the at least one processor to perform a foreign object removal method of a wireless charging foreign object removal device as previously described.
The present invention provides a storage medium storing computer instructions that, when executed by a computer, perform all the steps of a foreign matter removal method of a wireless charging foreign matter removal device as described above.
According to the invention, electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece is intermittently generated between the first electromagnetic driving piece and the second electromagnetic driving piece, so that vibration is generated between the first electromagnetic driving piece and the second electromagnetic driving piece, and the first surface structure is driven to vibrate, so that surface foreign matters are removed. According to the invention, the foreign matters of the wireless charging system are removed through the electrical performance, the system vibration is not needed to be realized through the spring, the problem of spring aging is avoided, and meanwhile, the problem that the metal spring is heated at the wireless charging ground terminal is avoided.
Drawings
FIG. 1 is a schematic diagram of a wireless charging foreign matter removal device according to the present invention;
FIG. 2 is a schematic diagram of a wireless charging foreign matter removal device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating electromagnetic forces generated by the first electromagnetic driving member and the second electromagnetic driving member according to an embodiment of the present invention;
FIG. 4 is a flowchart of a method for removing foreign matters from a wireless charging foreign matter removal device according to the present invention;
FIG. 5 is a flowchart of a method for removing foreign matters from a wireless charging foreign matter removal device according to a preferred embodiment of the present invention;
fig. 6 is a schematic diagram of a hardware structure of an electronic device according to the present invention.
Description of the marking
1-a power module; 11-total power supply; 12-a power supply phase shifter; 2-a foreign matter removal module; 200-coil mounting modules; 201-a foreign matter removal coil module; 21-a first surface structure; 210-an upper surface first side; 22-a second surface structure; 23-a third surface structure; 230-a lower surface first edge; 24-a first electromagnetic drive; 241-a first drive coil; 242-a second drive coil; 243-a third drive coil; 244-fourth drive coils; 25-a second electromagnetic drive; 251-a first power coil; 252-a second power coil; 253-a third power coil; 254-fourth power coil; 26-a first alternating current; 27-a second alternating current; 3-a foreign matter detection module; 4-a control module; 41-a first relay module; 42-a second relay module; 43-relay control module; 44-a ground end controller main control chip; 5-a vehicle-mounted end charging coil; 6-a vehicle-mounted end base; 7-a ground end charging coil; 8-a ground end base; 9-a shell.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
Example 1
Fig. 1 is a schematic structural diagram of a wireless charging foreign matter removing apparatus according to the present invention, including: a power module 1, a foreign matter removal module 2 and a control module 4, wherein the foreign matter removal module 2 is arranged above a ground end charging coil 7;
the foreign matter removal module 2 comprises a first surface structure 21 and a third surface structure 23, wherein the first surface structure 21 is arranged above the third surface structure 23, the first surface structure 21 is provided with a first electromagnetic driving piece 24, and a second electromagnetic driving piece 25 is arranged at a position of the third surface structure 23 corresponding to the first electromagnetic driving piece 24;
the control module 4 controls the on-off of the power module 1 and the first electromagnetic driving piece 24 and/or the second electromagnetic driving piece 25, and when the power module 1 is electrically connected with the first electromagnetic driving piece 24 and/or the second electromagnetic driving piece 25, the first electromagnetic driving piece 24 and the second electromagnetic driving piece 25 intermittently generate electromagnetic force for driving the first electromagnetic driving piece 24 to be far away from the second electromagnetic driving piece 25.
Specifically, the ground-side charging coil 7 is placed on the ground-side base 8, and the foreign matter removal module 2 is placed above the ground-side charging coil 7. Preferably, a housing 9 may be provided, the housing 9 being fixed above the ground-side charging coil 7, and the third surface structure 23 of the foreign matter removal module 2 being fixed above the housing 9. The power module 1 and the control module 4 may be disposed above the ground-side charging coil 7 together with the foreign matter removal module 2, or may be disposed at other positions. The power module 1, the foreign matter removal module 2, and the control module 4 may be placed within the housing 9. The vehicle-mounted terminal charging coil 5 is arranged in the vehicle-mounted terminal base 6 and is fixed at the bottom of the vehicle. When the vehicle is charged, the foreign matter removal module 2 will be located between the vehicle-mounted end charging coil 5 and the ground end charging coil 7. Since the foreign matter removal module 2 is located above the ground end charging coil 7, foreign matters will be blocked by the foreign matter removal module 2. The power module 1 is controlled by the control module 4 to be communicated with the first electromagnetic driving piece 24 and/or the second electromagnetic driving piece 25, so that electromagnetic force for driving the first electromagnetic driving piece 24 to be far away from the second electromagnetic driving piece 25 is intermittently generated, when electromagnetic force for driving the first electromagnetic driving piece 24 to be far away from the second electromagnetic driving piece 25 is generated, the first electromagnetic driving piece 24 is separated from the second electromagnetic driving piece 25, and drives the first surface structure 21 to rotate upwards so as to be separated from the third surface structure 23, and when electromagnetic force for driving the first electromagnetic driving piece 24 to be far away from the second electromagnetic driving piece 25 is not generated, the first surface structure 21 rotates downwards again under the action of gravity so as to be in contact with the third surface structure 23. Therefore, when the electromagnetic force for driving the first electromagnetic driving member 24 away from the second electromagnetic driving member 25 is intermittently generated, the first surface structure 21 is intermittently separated from the third surface structure 23, thereby generating vibration to remove foreign materials on the surface of the first surface structure 21. To avoid movement of the third surface structure 23 during vibration, the third surface structure may be fixed within the housing 9 and the housing 9 may be fixed above the ground-side charging coil 7, for example on the ground-side base 8.
The first electromagnetic driving member 24 and the second electromagnetic driving member 25 may be coils or magnets. And the power module 1 may supply alternating current or direct current. Vibration is realized by alternating magnetic fields of the coils.
As shown in fig. 2, the control module 4 may include a first relay module 41, a second relay module 42, a relay control module 43, and a ground controller main control chip 44, where the first relay module 41 controls on-off of the first electromagnetic driving member 24 and the power module 1, and the second relay module 42 controls on-off of the second electromagnetic driving member 25 and the power module 1. The relay control module 43 can simultaneously control the on and off of the first relay module 41 and the second relay module 42, and the relay control module 43 is connected with the ground end controller main control chip 44. Correspondingly, when the foreign matter is removed, the ground end controller main control chip 44 controls the first relay module 41 and the second relay module 42 to be closed through the relay control module 43, and foreign matter removal is started. After the foreign matter removal is finished, the ground end controller main control chip 44 controls the first relay module 41 and the second relay module 42 to be disconnected through the relay control module 43, and the formal charging flow is entered.
In one embodiment, the first electromagnetic driving member 24 is a first coil, the second electromagnetic driving member 25 is a second coil, the power module 1 includes a first power source connected to or disconnected from the first coil, and a second power source connected to or disconnected from the second coil, and when the first power source is connected to the first coil and the second power source is connected to the second coil, the first power source provides a first alternating current to the first coil, the second power source provides a second alternating current to the second coil, and the phase difference between the first alternating current and the second alternating current is preset.
Specifically, the first power supply provides a first alternating current and the second power supply provides a second alternating current. The phases of the first alternating current and the second alternating current differ by a preset phase difference value, for example by 1/2 pi. Thus, the magnetic force generated by the first coil and the second coil makes the first coil and the second coil alternately attract or repel each other, so that vibration is realized. As shown in fig. 3, the first alternating current 26 and the second alternating current 27 differ in phase by 1/2 pi. In the phase diagram, the area a corresponds to the attractive state of the N pole and the S pole in fig. 3, and the area B corresponds to the repulsive state of the N pole and the N pole in fig. 3. Therefore, the attractive and repulsive electromagnetic forces are alternately generated between the first coil and the second coil, so that vibration is realized.
In one embodiment, the power module 1 includes a main power supply 11 and a power supply phase shifter 12 electrically connected to the main power supply 11;
the total power supply 11 is used as the first power supply, and the output power supply of the power supply phase shifter 12 is used as the second power supply; or alternatively
The total power supply 11 serves as the second power supply, and the output power of the power supply phase shifter 12 serves as the first power supply.
As shown in fig. 3, the phase of the total power supply 11 is shifted by the power supply phase shifter 12 so that the phase of the alternating current outputted from the total power supply 11 has a preset phase difference value from the phase of the alternating current outputted from the power supply phase shifter 12.
In one embodiment, the first electromagnetic driving member 24 is a first coil, the second electromagnetic driving member 25 is a second coil, and the power module 1 includes a first power source connected to or disconnected from the first coil, and a second power source connected to or disconnected from the second coil;
the first power supply is connected with the first coil, and when the second power supply is connected with the second coil, the first power supply provides alternating current for the first coil, and the second power supply provides direct current for the second coil; or alternatively
The first power supply is connected with the first coil, and when the second power supply is connected with the second coil, the first power supply provides direct current for the first coil, and the second power supply provides alternating current for the second coil.
Specifically, the first electromagnetic driving element 24 and the second electromagnetic driving element 25 are coils, and when alternating current is supplied to one of the coils, the magnetic field directions of the coils are alternately reversed, and when direct current is supplied to the other coil, the magnetic field directions of the coils are fixed. Therefore, the magnetic field directions of the two coils are the same and opposite alternately, so that the attractive and repulsive electromagnetic forces are alternately generated between the first coil and the second coil, and vibration is realized.
In one embodiment:
the first electromagnetic driving member 24 is a first coil, the second electromagnetic driving member 25 is a magnet, and the power module 1 includes a third power source connected to or disconnected from the first coil, and the third power source provides an alternating current.
Specifically, in the present embodiment, the first electromagnetic driving element 24 is a coil, the second electromagnetic driving element 25 is a magnet, and when alternating current is supplied to the coil, the magnetic field directions of the coils are alternately opposite, and the magnetic field directions of the magnet are fixed. Therefore, the magnetic field directions of the two electromagnetic driving pieces are the same and opposite alternately, so that attractive and repulsive acting forces are alternately generated between the first electromagnetic driving piece and the second electromagnetic driving piece, and vibration is realized.
In one embodiment:
the first electromagnetic driving member 24 is a first coil, the second electromagnetic driving member 25 is a magnet, the power module 1 includes a fourth power source connected to or disconnected from the first coil, the fourth power source outputs a square wave current, and the square wave current drives the first coil to generate electromagnetic force for repelling the magnet.
Specifically, in this embodiment, the first electromagnetic driving member 24 is a coil, the second electromagnetic driving member 25 is a magnet, and a square wave current is output to the coil, for example, by pulse width modulation (PWM, pulse Width Modulation), since the magnet provides a stable magnetic field, it is possible to determine a current direction in which an electromagnetic force that repels the magnet is generated in the magnetic field according to a winding direction of the first coil, and output a square wave current to the coil according to the current direction, so that when the square wave is at a high level, the first coil is energized, generating an upward electromagnetic force that repels the magnet. Then, when the square wave is at a low level, the first coil is de-energized, the electromagnetic force is removed, and the first surface structure 21 rotates downward again under the action of gravity, so as to contact with the third surface structure 23, thereby realizing vibration.
According to the invention, electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece is intermittently generated between the first electromagnetic driving piece and the second electromagnetic driving piece, so that vibration is generated between the first electromagnetic driving piece and the second electromagnetic driving piece, and the first surface structure is driven to vibrate relative to the third surface structure, so that surface foreign matters are removed. According to the invention, the foreign matters of the wireless charging system are removed through the electrical performance, the system vibration is not needed to be realized through the spring, the problem of spring aging is avoided, and meanwhile, the problem that the metal spring is heated at the wireless charging ground terminal is avoided.
Example two
As shown in fig. 1 and 2, a wireless charging foreign matter removal device includes: a power module 1, a foreign matter removal module 2 and a control module 4, wherein the foreign matter removal module 2 is arranged above a ground end charging coil 7;
the foreign matter removal module 2 comprises a first surface structure 21, a second surface structure 22 and a third surface structure 23, wherein the first surface structure 21 is arranged above the third surface structure 23, the second surface structure 22 is arranged between the first surface structure 21 and the third surface structure 23, the second surface structure 22 is closely attached to the first surface structure 21, the first edge 210 of the upper surface of the first surface structure 21 is connected with the first edge 230 of the lower surface of the third surface structure 23, the first surface structure 21 is provided with a first electromagnetic driving piece 24, and the position of the third surface structure 23 corresponding to the first electromagnetic driving piece 24 is provided with a second electromagnetic driving piece 25;
The control module 4 controls the on-off of the power module 1 and the first electromagnetic driving piece 24 and/or the second electromagnetic driving piece 25, and when the power module 1 is electrically connected with the first electromagnetic driving piece 24 and/or the second electromagnetic driving piece 25, the first electromagnetic driving piece 24 and/or the second electromagnetic driving piece 25 intermittently generates electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece;
the first electromagnetic driving member 24 is disposed between the first surface structure 21 and the second surface structure 22, the second electromagnetic driving member 25 is disposed between the second surface structure 22 and the third surface structure 23, the materials of the first surface structure 21 and the second surface structure 22 are flexible and stretchable materials, and the material of the third surface structure 23 is a nonmetallic hard material;
the first electromagnetic driving members 24 are plural, a part of the first electromagnetic driving members 24 are disposed near the first edge 210 of the upper surface, another part of the first electromagnetic driving members 24 are disposed far away from the first edge 210 of the upper surface, a part of the second electromagnetic driving members 25 are disposed near the first edge 230 of the lower surface, and another part of the second electromagnetic driving members 25 are disposed far away from the first edge 230 of the lower surface;
The number of the first electromagnetic drivers 24 disposed away from the upper surface first side 210 is greater than the number of the first electromagnetic drivers 24 disposed proximate to the upper surface first side 210;
the number of the second electromagnetic driving members 25 disposed away from the lower surface first edge 230 is greater than the number of the second electromagnetic driving members 25 disposed close to the lower surface first edge 230;
the foreign matter removal module 2 has an inclination angle with the ground, the angle of the inclination angle being determined according to the number of the first electromagnetic driving pieces 24, the number of the second electromagnetic driving pieces 25, the softness of the first surface structure 21, the surface friction of the first surface structure 21, and/or the characteristic parameters of the power supply module 1;
the wireless foreign matter clearing device that charges still includes: a foreign matter detection module 3 for detecting foreign matters, wherein the foreign matter detection module 3 is in communication connection with the control module 4.
Specifically, the foreign matter removal module 2 is mounted on the housing 9, and a foreign matter removal driving coil is mounted on the foreign matter removal module 2 as a first electromagnetic driving member 24, and a power transmitting coil is mounted as a second electromagnetic driving member 25, the driving coil being disposed opposite to the power transmitting coil. In the working process, the driving coil and the power coil are respectively electrified, and alternating acting force is generated between the driving coil and the power coil by controlling parameters such as current direction and the like, so that vibration is realized. Optionally, the shell can directly install the magnet without using a coil, and still vibration can be realized through the magnetic field alternation of the power coil.
The foreign matter removing module comprises a coil mounting module 200 and a foreign matter removing coil module 201, and the wireless charging foreign matter removing device further comprises a power module 1, a foreign matter detecting module 3 and a control module 4. The coil mounting module 200 is located on the surface of the ground end base 8 and includes a first surface structure 21, a second surface structure 22 and a third surface structure 23. The first surface structure 21 and the second surface structure 22 are made of flexible and telescopic materials, the third surface structure 23 is made of nonmetal hard materials, and the first surface structure 21, the second surface structure 22 and the third surface structure 23 are closely attached and form an alpha inclination angle with the ground end base 8. Preferably, a housing 9 may be provided, the housing 9 being secured over the floor end base 8, the third surface structure 23 of the foreign body removal module 2 being secured over the housing 9. The first surface structure 21, the second surface structure 22 and the third surface structure 23 may be sheet-like structures of various shapes. The second surface structure 22 and the third surface structure 23 have a certain gap in the area other than the upper surface first side 210 and the lower surface first side 230. The first electromagnetic drive 24 is fixed between the first surface structure 21, the second surface structure 22, for example the first electromagnetic drive 24 is fixed between the first surface structure 21, the second surface structure 22 by means of an adhesive material. The second electromagnetic drive 25 is fixed to the third surface structure 23 between the second surface structure 22 and the third surface structure 23. The second electromagnetic drive 25 may be fixed to the third surface structure 23 by means of, for example, adhesive bonding or bolting. Preferably, the first electromagnetic driving member 24 and the second electromagnetic driving member 25 are foreign matter removal coils. Specifically, the first electromagnetic driving member 24 includes a first driving coil 241, a second driving coil 242, a third driving coil 243, and a fourth driving coil 244, wherein the first driving coil 241, the second driving coil 242, and the third driving coil 243 are far from the bottom side line position, i.e., far from the upper surface first side 210, and the fourth driving coil 244 is near the bottom side line position, i.e., near the upper surface first side 210. Optionally, the number of coils may be adjustable. Preferably, the second electromagnetic driving member 25 includes a first power coil 251, a second power coil 252, a third power coil 253, and a fourth power coil 254, which are in one-to-one correspondence in position with the first driving coil 241, the second driving coil 242, the third driving coil 243, and the fourth driving coil 244. Thus, the first power coil 251, the second power coil 252, and the third power coil 253 are located away from the bottom edge line position, i.e., away from the lower surface first side 230, and the fourth power coil 254 is located near the bottom edge line position, i.e., near the lower surface first side 230. The first driving coil 241, the second driving coil 242, the third driving coil 243, and the fourth driving coil 244 are connected in series and then connected to the control module 4 and the power module 1, and the first power coil 251, the second power coil 252, the third power coil 253, and the fourth power coil 254 are connected in series and then connected to the control module 4 and the power module 1.
Wherein the upper surface first side 210 of the first surface structure 21 is connected to the lower surface first side 230 of the third surface structure 23, and the other sides of the first surface structure 21 are not connected to the other sides of the third surface structure 23. The connection mode can adopt an adhesive bonding mode or a bolt connection mode. Therefore, when the first electromagnetic driving member 24 is separated from the second electromagnetic driving member 25, the edges of the first surface structure 21 other than the upper surface first edge 210 are separated from the third surface structure 23, so that the first surface structure 21 is driven to rotate upwards by taking the upper surface first edge 210 as a rotation axis. The first surface structure 21 is closely adhered to the second surface structure 22, and preferably, the first surface structure 21 and the second surface structure 22 may be adhered, so that the first electromagnetic driving member 24 is accommodated between the first surface structure 21 and the second surface structure 22. The first electromagnetic driving member 24 may be connected to the first surface structure 21 or the second surface structure 22 by various connection methods, for example, by bonding, pivoting, or the like, and thus the first surface structure 21 and the second surface structure 22 are driven to move.
The foreign matter removal module 2 has an inclination angle α with the ground, and when the foreign matter removal module 2 is mounted on the housing 9, the inclination angle of the foreign matter removal module 2 with the ground is the inclination angle of the housing 9. The related factors of the inclination angle alpha are the number x of foreign matter removal coils, the flexibility r of the surface flexible material on the ground end, the surface friction force f0 and the characteristic parameters Ua of an alternating current/direct current power supply, the corresponding alpha size calculation formula is alpha=γf (x, r, f0, ua), the gamma is a calibration parameter, and optionally, the gamma can be calibrated according to the corresponding debugging result. The characteristic parameter of the power supply may be a voltage value or a current value. f is a fitting function, and can be obtained through multiple times of experimental data fitting.
Since the foreign matter removal module 2 is located between the ground-side charging coil 7 and the vehicle-mounted-end charging coil 5. In order to avoid the generation of induced current in the foreign matter removal coil during the primary charging process, heat generation occurs. Accordingly, the present embodiment designs the control module 4 of the foreign matter removal coil. The control module 4 may include a first relay module 41, a second relay module 42, a relay control module 43, and a ground controller main control chip 44, where the first relay module 41 controls on-off of the first electromagnetic driving member 24 and the power module 1, and the second relay module 42 controls on-off of the second electromagnetic driving member 25 and the power module 1. The relay control module 43 can simultaneously control the on and off of the first relay module 41 and the second relay module 42, and the relay control module 43 is connected with the ground end controller main control chip 44. Correspondingly, when the foreign matter is removed, the ground end controller main control chip 44 controls the first relay module 41 and the second relay module 42 to be closed through the relay control module 43, and foreign matter removal is started. After the foreign matter removal is finished, the ground end controller main control chip 44 controls the first relay module 41 and the second relay module 42 to be disconnected through the relay control module 43, and the formal charging flow is entered.
The power module 1 includes a main power supply 11 and a power supply phase shifter 12. The total power supply 11 may be an ac power supply or a dc power supply. Preferably, the power module 1 can be realized by connecting an external power supply, and can also be connected to the ground end power supply controller corresponding to the output end of the inverter. The power phase shifter 12 is mounted on the front side of the first electromagnetic driving member 24 or the second electromagnetic driving member 25 such that the phases of the driving coils and the power coils are different, for example, 1/2 pi, so that the magnetic forces generated by the two coils alternately attract or repel each other, thereby achieving vibration.
Alternatively, the driving coil may be connected to a direct current, the magnetic field direction of which is different, and the power coil may be connected to an alternating current, so that the magnetic field is alternately changed, and the vibration may be also realized.
The foreign matter detection module 3 may adopt various foreign matter detection modes, for example, a camera is used for shooting, and then through image recognition, whether a foreign matter exists is judged. Specifically, it is determined whether or not there is a foreign matter on the first surface structure 21. In one embodiment, the foreign matter detection module 3 employs infrared detection, and a plurality of infrared sensors are uniformly arranged on the upper surface of the ground end, for example, on the first surface structure 21. The foreign matter detection function and the foreign matter removal function form a closed loop, and before foreign matter removal, the distribution condition of the surface temperature of the ground end is detected after the pre-charging Xmin, so that whether the foreign matter exists or not is judged. After the foreign matter is removed, the system detects again to judge whether the foreign matter is removed or not, so that smooth charging is ensured. The foreign matter detection module 3 may also include a plurality of temperature sensors uniformly arranged to detect the distribution of the rise in the surface temperature of the ground end surface, specifically the first surface structure 21.
In this embodiment, more electromagnetic driving members are disposed on the first side far away from the connection, so that the acting force far away from the connection position is greater, thereby improving the vibration efficiency. Meanwhile, the foreign matter detection module is added in the embodiment, so that a closed loop is formed between the foreign matter detection and foreign matter removal functions, and smooth charging is guaranteed.
Example III
Fig. 4 is a flowchart of a foreign matter removal method of the wireless charging foreign matter removal device according to the present invention, which includes:
step S401, in response to a wireless charging request of a vehicle, detecting whether foreign matters exist;
step S402, if it is determined that there is a foreign object, performing a foreign object removal operation until it is detected that there is no foreign object, wherein the foreign object removal operation includes: the control power module 1 is electrically connected with the first electromagnetic driving piece 24 and/or the second electromagnetic driving piece 25, in a first time period, the control power module 1 outputs current, drives the first electromagnetic driving piece 24 and the second electromagnetic driving piece 25 to intermittently generate electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece, and after the first time period, the control power module 1 stops outputting current and detects whether foreign matters exist again;
In step S403, if it is determined that there is no foreign object, the vehicle is controlled to start wireless charging.
In particular, the present invention may be applied to a control module of a wireless charging foreign matter removal device as described above, such as the ground side controller main control chip 44 of the control module 4. When a wireless charging request of the vehicle is received, step S401 is triggered to detect whether a foreign object exists. The detection of the presence or absence of the foreign matter may be to determine whether the first surface structure 21 has the foreign matter or whether the ground end base 8 has the foreign matter. If it is determined that there is no foreign matter, in step S403, if it is determined that there is foreign matter, step S402 is performed to energize the first electromagnetic driving member 24 and/or the second electromagnetic driving member 25 for a first time, so that the first surface structure 21 and the third surface structure 23 vibrate, and the foreign matter is removed. After the first time, the power supply is stopped, whether the foreign matter exists is detected again, if the foreign matter exists, the step S402 is executed again until the foreign matter does not exist, and in the triggering step S403, the vehicle is controlled to start wireless charging.
When foreign matters exist, electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece is intermittently generated between the first electromagnetic driving piece and the second electromagnetic driving piece, so that vibration is generated between the first electromagnetic driving piece and the second electromagnetic driving piece, and the first surface structure is driven to vibrate relative to the third surface structure, so that the foreign matters on the surface are removed. According to the invention, the foreign matters of the wireless charging system are removed through the electrical performance, the system vibration is not needed to be realized through the spring, the problem of spring aging is avoided, and meanwhile, the problem that the metal spring is heated at the wireless charging ground terminal is avoided.
In one embodiment, the determining whether to detect the foreign object specifically includes:
controlling the vehicle to perform wireless charging within a preset second time;
after the preset second time, stopping wireless charging to obtain the temperature distribution of the ground end surface;
and if the temperature distribution meets the preset foreign matter temperature distribution condition, judging that the foreign matter exists, otherwise, judging that the foreign matter does not exist.
Specifically, the foreign matter may be detected by the foreign matter detection module 3 communicatively connected to the control module 4. Preferably, the foreign matter detection module 3 detects whether there is a foreign matter on the first surface structure 21. The foreign matter detection module 3 may employ infrared detection, and a plurality of infrared sensors are uniformly arranged on the upper surface of the ground end, for example, on the first surface structure 21. The foreign matter detection function and the foreign matter removal function form a closed loop, and before foreign matter removal, the temperature distribution condition of the ground end surface is detected after the pre-charging Xmin, so that whether the foreign matter exists or not is judged. The ground end surface temperature distribution may be a surface temperature distribution of the first surface structure 21. After the foreign matter is removed, the system detects again to judge whether the foreign matter is removed or not, so that smooth charging is ensured. The foreign matter detection module 3 may also include a plurality of temperature sensors uniformly arranged to detect the distribution of the rise in the surface temperature of the ground end surface, specifically the first surface structure 21.
The foreign matter temperature distribution condition may be: if the temperature of any position of the first surface structure is greater than a preset temperature threshold value, the foreign matter is judged to exist, or if the number of positions of the first surface structure, the temperature of which is greater than the preset temperature threshold value, exceeds a preset number threshold value, the foreign matter is judged to exist. And if the temperature of each position of the surface of the first surface structure is less than or equal to a preset temperature threshold value, judging that no foreign matter exists.
As shown in fig. 5, according to a preferred embodiment of the present invention, a foreign matter removal method of a wireless charging foreign matter removal device as shown in fig. 1 and 2, the method comprises:
step S501, a vehicle is driven into a charging area;
step S502, wireless charging and pre-charging Xmin;
step S503, infrared ray detects the temperature distribution of the ground end surface;
step S504, if the temperature distribution is not uniform, step S505 is performed, otherwise step S509 is performed;
step S505, closing the first relay module and the second relay module;
step S506, removing foreign matters;
step S507, prompting the vehicle to charge later in foreign matter removal;
step S508, after Ymin, disconnecting the first relay module and the second relay module, and executing step S502;
step S509, no foreign matter or removal of foreign matter is completed, and the formal charge is started.
Example IV
Fig. 6 is a schematic diagram of a hardware structure of an electronic device according to the present application, including:
at least one processor 601; the method comprises the steps of,
a memory 602 communicatively coupled to at least one of the processors 601; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory 602 stores instructions executable by at least one of the processors to enable the at least one processor to perform a foreign object removal method of a wireless charging foreign object removal device as previously described.
One processor 601 is illustrated in fig. 6.
The electronic device may further include: an input device 603 and a display device 604.
The processor 601, memory 602, input device 603 and display device 604 may be connected by a bus or other means, the connection being illustrated by a bus.
The memory 602 is used as a non-volatile computer readable storage medium for storing a non-volatile software program, a non-volatile computer executable program, and modules, such as program instructions/modules corresponding to a foreign object removal method of a wireless charging foreign object removal device in an embodiment of the present application, for example, a method flow shown in fig. 4. The processor 601 executes various functional applications and data processing by running nonvolatile software programs, instructions and modules stored in the memory 602, i.e., implements the foreign matter removal method of the wireless charging foreign matter removal device in the above-described embodiment.
The memory 602 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data or the like created according to the use of the foreign matter removal method of the wireless charging foreign matter removal device. In addition, the memory 602 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, memory 602 optionally includes memory remotely located relative to processor 601, which may be connected via a network to a device performing the foreign object removal method of the wireless charging foreign object removal device. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 603 may receive input user clicks and generate signal inputs related to user settings and function control of the foreign object removal method of the wireless charging foreign object removal device. The display 604 may include a display device such as a display screen.
The foreign object removal method of the wireless charging foreign object removal device in any of the method embodiments described above is performed when the one or more modules are stored in the memory 602 and executed by the one or more processors 601.
When foreign matters exist, electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece is intermittently generated between the first electromagnetic driving piece and the second electromagnetic driving piece, so that vibration is generated between the first electromagnetic driving piece and the second electromagnetic driving piece, and the first surface structure is driven to vibrate relative to the third surface structure, so that the foreign matters on the surface are removed. According to the invention, the foreign matters of the wireless charging system are removed through the electrical performance, the system vibration is not needed to be realized through the spring, the problem of spring aging is avoided, and meanwhile, the problem that the metal spring is heated at the wireless charging ground terminal is avoided.
An embodiment of the present invention provides a storage medium storing computer instructions that, when executed by a computer, perform all the steps of a foreign matter removal method of a wireless charging foreign matter removal device as described above.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (16)

1. A wireless charging foreign matter removal device, comprising: the device comprises a power supply module (1), a foreign matter removal module (2) and a control module (4), wherein the foreign matter removal module (2) is arranged above a ground end charging coil (7);
the foreign matter removal module (2) comprises a first surface structure (21) and a third surface structure (23), wherein the first surface structure (21) is arranged above the third surface structure (23), the first surface structure (21) is provided with a first electromagnetic driving piece (24), and a second electromagnetic driving piece (25) is arranged at a position, corresponding to the first electromagnetic driving piece (24), of the third surface structure (23);
the control module (4) controls the on-off of the power module (1) and the first electromagnetic driving piece (24) and/or the second electromagnetic driving piece (25), and when the power module (1) is electrically connected with the first electromagnetic driving piece (24) and/or the second electromagnetic driving piece (25), the first electromagnetic driving piece (24) and/or the second electromagnetic driving piece (25) intermittently generate electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece.
2. The wireless charging foreign matter removal device according to claim 1, further comprising a second surface structure (22) provided between the first surface structure (21) and the third surface structure (23), the second surface structure (22) being in close contact with the first surface structure (21), the first electromagnetic driving member (24) being provided between the first surface structure (21) and the second surface structure (22), the second electromagnetic driving member (25) being provided between the second surface structure (22) and the third surface structure (23).
3. The wireless charging foreign matter removal device according to claim 2, wherein the first surface structure (21) and the second surface structure (22) are made of flexible and stretchable materials, and the third surface structure (23) is made of a nonmetallic hard material.
4. The wireless charging foreign matter removal device according to claim 1, wherein an upper surface first side (210) of the first surface structure (21) is connected to a lower surface first side (230) of the third surface structure (23), the first electromagnetic driving members (24) are plural, a part of the first electromagnetic driving members (24) are disposed near the upper surface first side (210), another part of the first electromagnetic driving members (24) are disposed away from the upper surface first side (210), the second electromagnetic driving members (25) are plural, a part of the second electromagnetic driving members (25) are disposed near the lower surface first side (230), and another part of the second electromagnetic driving members (25) are disposed away from the lower surface first side (230);
the number of the first electromagnetic driving members (24) arranged away from the upper surface first side (210) is greater than the number of the first electromagnetic driving members (24) arranged close to the upper surface first side (210);
The number of the second electromagnetic driving members (25) disposed away from the lower surface first side (230) is greater than the number of the second electromagnetic driving members (25) disposed close to the lower surface first side (230).
5. The wireless charging foreign matter removal device according to claim 1, wherein the foreign matter removal module (2) has an inclination angle with the ground.
6. The wireless charging foreign matter removal device according to claim 5, wherein the angle of the tilt angle is determined according to the number of first electromagnetic driving members (24), the number of second electromagnetic driving members (25), the softness of the first surface structure (21), the surface friction of the first surface structure (21), and/or the characteristic parameters of the power supply module (1).
7. The wireless charging foreign matter removal device of claim 1, wherein:
the first electromagnetic driving piece (24) is a first coil, the second electromagnetic driving piece (25) is a second coil, the power module (1) comprises a first power supply connected or disconnected with the first coil and a second power supply connected or disconnected with the second coil, the first power supply is connected with the first coil, and when the second power supply is connected with the second coil, the first power supply provides first alternating current for the first coil, the second power supply provides second alternating current for the second coil, and the phase difference of the first alternating current and the second alternating current is preset.
8. The wireless charging foreign matter removal device according to claim 7, wherein the power supply module (1) includes a main power supply (11) and a power supply phase shifter (12) electrically connected to the main power supply (11);
-said total power supply (11) being said first power supply and said power supply phase shifter (12) being said second power supply; or alternatively
The total power supply (11) is used as the second power supply, and the output power supply of the power supply phase shifter (12) is used as the first power supply.
9. The wireless charging foreign matter removal device of claim 1, wherein:
the first electromagnetic driving piece (24) is a first coil, the second electromagnetic driving piece (25) is a second coil, and the power module (1) comprises a first power supply connected with or disconnected from the first coil and a second power supply connected with or disconnected from the second coil;
the first power supply is connected with the first coil, and when the second power supply is connected with the second coil, the first power supply provides alternating current for the first coil, and the second power supply provides direct current for the second coil; or alternatively
The first power supply is connected with the first coil, and when the second power supply is connected with the second coil, the first power supply provides direct current for the first coil, and the second power supply provides alternating current for the second coil.
10. The wireless charging foreign matter removal device of claim 1, wherein:
the first electromagnetic driving piece (24) is a first coil, the second electromagnetic driving piece (25) is a magnet, and the power module (1) comprises a third power supply connected with or disconnected from the first coil, and the third power supply provides alternating current.
11. The wireless charging foreign matter removal device of claim 1, wherein:
the first electromagnetic driving piece (24) is a first coil, the second electromagnetic driving piece (25) is a magnet, the power module (1) comprises a fourth power supply connected with or disconnected from the first coil, the fourth power supply outputs square wave current, and the square wave current drives the first coil to generate electromagnetic force for repelling the magnet.
12. The wireless charging foreign matter removal device of claim 1, further comprising: and the foreign matter detection module (3) is used for detecting foreign matters, and the foreign matter detection module (3) is in communication connection with the control module (4).
13. A foreign matter removal method of a wireless charging foreign matter removal device according to any one of claims 1 to 12, comprising:
detecting whether a foreign object exists in response to a wireless charging request of the vehicle;
If it is determined that a foreign object exists, performing a foreign object removal operation until detection determines that no foreign object exists, wherein the foreign object removal operation includes: the control power supply module (1) is electrically connected with the first electromagnetic driving piece (24) and/or the second electromagnetic driving piece (25), in a first time period, the control power supply module (1) outputs current, the first electromagnetic driving piece (24) and the second electromagnetic driving piece (25) are driven to intermittently generate electromagnetic force for driving the first electromagnetic driving piece to be far away from the second electromagnetic driving piece, and after the first time period, the control power supply module (1) stops outputting current and detects whether foreign matters exist again;
and if no foreign matter is judged, controlling the vehicle to start wireless charging.
14. The method for removing foreign matter of the wireless charging foreign matter removal device of claim 13, wherein the determining whether to detect the foreign matter specifically includes:
controlling the vehicle to perform wireless charging within a preset second time;
after the preset second time, stopping wireless charging to obtain the temperature distribution of the ground end surface;
and if the temperature distribution meets the preset foreign matter temperature distribution condition, judging that the foreign matter exists, otherwise, judging that the foreign matter does not exist.
15. An electronic device, comprising:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to at least one of the processors; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by at least one of the processors to enable the at least one of the processors to perform the foreign matter removal method of the wireless charging foreign matter removal device of any one of claims 13 to 14.
16. A storage medium storing computer instructions which, when executed by a computer, perform all the steps of the foreign object removal method of the wireless charging foreign object removal device of any one of claims 13 to 14.
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