CN110774908B - Foreign matter monitoring device, and foreign matter monitoring system and method for wireless charging of electric automobile - Google Patents
Foreign matter monitoring device, and foreign matter monitoring system and method for wireless charging of electric automobile Download PDFInfo
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- CN110774908B CN110774908B CN201911139576.5A CN201911139576A CN110774908B CN 110774908 B CN110774908 B CN 110774908B CN 201911139576 A CN201911139576 A CN 201911139576A CN 110774908 B CN110774908 B CN 110774908B
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- beam generator
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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
- B60L53/124—Detection or removal of foreign bodies
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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
- Y02T90/14—Plug-in electric vehicles
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a foreign matter monitoring device, a foreign matter monitoring system wirelessly charged by an electric automobile and a method, wherein the foreign matter monitoring device comprises: a light beam generator for projecting a light beam to the wireless charging transmitting device; the presenter is used for displaying a projection picture of the wireless charging and transmitting device projected by the light beam generator; the image collector is arranged on the same side as the light beam generator and is used for collecting the image of the projection picture displayed on the displayer; the translational motion mechanism can drive the light beam generator and the image collector to perform translational motion relative to the wireless charging and transmitting device; and the first lifting movement mechanism can drive the displayer to carry out lifting movement relative to the wireless charging transmitting device. The foreign matter monitoring device can detect the foreign matters on the wireless charging transmitting device, is simple and convenient, has high detection efficiency, and improves the safety of wireless charging of the electric automobile.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a foreign matter monitoring device, a foreign matter monitoring system for wireless charging of an electric automobile and a foreign matter monitoring method for wireless charging of the electric automobile.
Background
Along with the technical progress and the scientific and technological development, the energy-saving and environment-friendly consciousness of people is gradually enhanced, and more families choose to purchase new energy electric vehicles which do not pollute and influence the atmospheric environment, particularly on the selection of transportation and travel tools.
The existing charging modes of the electric automobile comprise traditional wired charging and emerging wireless charging. The wired charging mode has the problems that the power taking is not flexible, sparks are easy to generate, the charging cable needs to be repeatedly plugged and pulled out, and the like. And the problem of above-mentioned wired charging can be overcome to the wireless mode of charging, sets up wireless transmitting coil that charges usually subaerial, sets up wireless receiving coil that charges on electric automobile, utilizes the wireless transmitting coil magnetic field coupling that charges to realize the electric energy and sees through the air and to the wireless receiving coil transmission that charges, adopts the wireless mode of charging can reduce electric automobile cost, convenient to use, safety.
However, in the wireless charging process, a strong electromagnetic field exists in an air gap between the wireless charging transmitting coil and the wireless charging receiving coil, and if a metal foreign matter exists in the air gap, the metal is heated rapidly due to an eddy current effect, so that potential safety hazards may be caused. In addition, if a large or sharp object exists on the substrate of the wireless charging transmitting coil, the object may be pressed or scraped against the chassis of the electric vehicle or the wireless charging receiving coil on the chassis, thereby causing damage to the chassis of the electric vehicle or the wireless charging receiving coil.
Disclosure of Invention
The embodiment of the invention provides a foreign matter monitoring device, a foreign matter monitoring system for wireless charging of an electric automobile and a method, solves the problems that potential safety hazards are easily caused due to the fact that foreign matters exist on a wireless charging transmitting coil, and a chassis of the electric automobile and a wireless charging receiving coil on the chassis are damaged, and improves the safety of wireless charging of the electric automobile.
In one aspect, an embodiment of the present invention provides a foreign object monitoring apparatus, including:
the light beam generator is arranged on one side of the wireless charging and transmitting device on the ground and used for projecting light beams to the wireless charging and transmitting device;
the presenter is arranged on the other side of the wireless charging and transmitting device, the light beam generator and the presenter are oppositely arranged, and the presenter is used for displaying a projection picture of the wireless charging and transmitting device projected by the light beam generator;
the image collector is arranged on the same side as the light beam generator and is used for collecting the image of the projection picture displayed on the displayer;
the light beam generator and the image collector are connected with the translational motion mechanism, and the translational motion mechanism can drive the light beam generator and the image collector to perform translational motion relative to the wireless charging and transmitting device;
and the displayer is arranged on the first lifting movement mechanism, and the first lifting movement mechanism can drive the displayer to carry out lifting movement relative to the wireless charging transmitting device.
In some embodiments, the foreign object monitoring device further comprises:
second elevating movement mechanism, set up in translational movement mechanism is last, light beam generator with image collector all set up in on the second elevating movement mechanism, second elevating movement mechanism can drive light beam generator with image collector for wireless emitter that charges carries out synchronous elevating movement, so that light beam generator with image collector adjusts to being convenient for the monitoring the high position of wireless emitter that charges's the surface condition.
In some embodiments, the translational movement mechanism comprises:
the first horizontal movement module can drive the light beam generator and the image collector to perform translational movement along a first horizontal direction;
the second horizontal movement module is arranged on the first horizontal movement module, the second lifting movement mechanism is arranged on the second horizontal movement module, and the second horizontal movement module can drive the light beam generator and the image collector to perform translational movement along a second horizontal direction;
the first horizontal direction is not parallel to the second horizontal direction.
In some embodiments, the second lifting motion mechanism is a vertical motion module comprising a vertical rail disposed on the second horizontal motion module; and the sliding part is connected with the vertical track in a sliding way, and the light beam generator and the image collector are arranged on the sliding part.
In some embodiments, the sliding member comprises:
the side part of the mounting box is provided with a sliding block which is in sliding fit with the vertical track;
the rotating shaft is arranged on the outer side wall of the mounting box and is in rotating connection with the light beam generator.
The telescopic rod is arranged in the mounting box, and a telescopic part of the telescopic rod can penetrate out of the mounting box and is hinged with the bottom of the light beam generator;
and the first driving part is connected with the telescopic rod, the first driving part is arranged in the mounting box, and the first driving part is used for driving the telescopic rod to perform telescopic motion so as to drive the light beam generator to rotate around the rotating shaft.
In some embodiments, the first elevating motion mechanism comprises:
a fixed base;
the telescopic vertical rod is arranged on the fixed base, and the displayer is suspended at the top end of the telescopic vertical rod;
and the second driving part is connected with the telescopic vertical rod and is used for driving the telescopic vertical rod to perform telescopic motion so as to drive the displayer to ascend or descend.
In some embodiments, the foreign object monitoring device further comprises: and the foreign matter adsorption machine is arranged on the second lifting motion mechanism, and the second lifting motion mechanism can drive the foreign matter adsorption machine to perform lifting motion so as to adjust the position of the foreign matter adsorption machine and enable the adsorption port of the foreign matter adsorption machine to be flush with the surface of the wireless charging and transmitting device.
In some embodiments, the foreign object monitoring device further comprises:
the first mounting groove is formed in the ground and located on one side of the wireless charging and transmitting device, and the light beam generator, the image collector and the translational movement mechanism are all arranged in the first mounting groove;
and the second mounting groove is formed in the ground and located on the other side of the wireless charging transmitting device, and the presenter and the first lifting movement mechanism are arranged in the second mounting groove.
On the other hand, the embodiment of the invention also provides a foreign matter monitoring system for wireless charging of an electric vehicle, which comprises the foreign matter monitoring device and a monitoring controller connected with the foreign matter monitoring device, wherein the monitoring controller is used for sending a monitoring control signal to the foreign matter monitoring device, and sending a foreign matter removing control signal to the foreign matter monitoring device to remove foreign matters when the surface of the wireless charging transmitting device is determined to have the foreign matters according to the image of the projection picture.
In another aspect, an embodiment of the present invention further provides a foreign object monitoring method for wireless charging of an electric vehicle, including:
receiving a monitoring control signal sent by the monitoring controller;
the second lifting movement mechanism is driven to move so as to drive the light beam generator and the image collector to ascend to a height position convenient for monitoring the surface condition of the wireless charging and transmitting device, and the first lifting movement mechanism is driven to move so as to drive the presenter to ascend to a height threshold position;
the translation movement mechanism is driven to move so as to drive the light beam generator and the image collector to move horizontally, and meanwhile, the light beam generator projects light beams through the wireless charging and transmitting device and the image collector collects images of projection pictures displayed on the displayer;
sending the collected images of the projection pictures to the monitoring controller;
analyzing and processing the image of the projected picture and determining whether foreign matters exist on the surface of the wireless charging and transmitting device;
if foreign matters exist on the surface of the wireless charging and transmitting device, the monitoring controller sends a foreign matter removal control signal to the foreign matter monitoring device;
and driving the foreign matter adsorption machine to work so as to remove the foreign matter existing on the surface of the wireless charging and transmitting device.
The invention has the beneficial effects that:
the foreign matter monitoring device adjusts the light beam generator and the image collector to the position convenient for detecting the foreign matters of the wireless charging and transmitting device through the translation movement mechanism, drives the displayer to ascend and descend to the position convenient for displaying the projection picture of the light beam generator through the first ascending and descending movement mechanism, and collects the image of the projection picture through the image collector so as to determine whether the foreign matters exist on the wireless charging and transmitting device according to the collected image of the projection picture. The foreign matter monitoring device provided by the embodiment of the invention can detect the foreign matters on the wireless charging transmitting device, is simple and convenient, and has high detection efficiency, so that the problems that potential safety hazards are easily caused and the wireless charging receiving coil on the chassis of the electric automobile and the chassis of the electric automobile are damaged due to the foreign matters on the wireless charging transmitting coil are solved, and the safety of wireless charging of the electric automobile is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic structural view of some embodiments of a foreign object monitoring device of the present invention;
FIG. 2 is a schematic structural view of some embodiments of the translational movement mechanism and the second elevating movement mechanism of the foreign object monitoring apparatus of the present invention;
FIG. 3 is a schematic structural view of some embodiments of the sliding member of the foreign object monitoring apparatus of the present invention;
FIG. 4 is a schematic structural view of some embodiments of the first elevating movement mechanism of the foreign matter monitoring apparatus of the present invention;
FIG. 5 is a schematic structural view of another embodiment of the foreign object monitoring apparatus of the present invention;
fig. 6 is a flowchart illustrating a foreign object monitoring method for wireless charging of an electric vehicle according to some embodiments of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes a foreign object monitoring apparatus provided in some embodiments of the present invention.
In one aspect, as shown in fig. 1, a schematic structural diagram of a foreign object monitoring apparatus 100 according to an embodiment of the present invention is shown. The foreign matter monitoring apparatus 100 of the present embodiment includes: a light beam generator 1 disposed at one side of the wireless charging transmitting device 300 on the ground 200 for projecting a light beam to the wireless charging transmitting device 300; the presenter 2 is arranged on the other side of the wireless charging and transmitting device 300, the light beam generator 1 and the presenter 2 are oppositely arranged, and the presenter 2 is used for displaying a projection picture of the wireless charging and transmitting device 300 projected by the light beam generator 1; the image collector 3 is arranged at the same side of the light beam generator 1 and is used for collecting the image of the projection picture displayed on the presenter 2; the translational movement mechanism 4 is connected with the light beam generator 1 and the image collector 3, and the translational movement mechanism 4 can drive the light beam generator 1 and the image collector 3 to perform translational movement relative to the wireless charging and transmitting device 300; and, first elevating movement mechanism 5, presenter 2 set up on first elevating movement mechanism 5, and first elevating movement mechanism 5 can drive presenter 2 and carry out elevating movement for wireless emitter 300 that charges.
The light beam generator 1 may be a projection device, and may be other types of light beam generation devices as long as they can generate a projection light beam, and is not particularly limited herein. By projecting the projected beam generated by the beam generator onto the wireless charging transmitting device 300, an enlarged screen of the foreign matter on the wireless charging transmitting device 300 can be displayed on the presenter. In addition, the presenter may be a curtain, or may be another display device, as long as the presenter can receive and display the projection light beam of the light beam generator, which is not specifically limited herein.
In this embodiment, the image collector 3 may be a common network camera, as long as it can collect the projection image on the presenter 2, and is not specifically limited herein.
The translational movement mechanism 4 in this embodiment is used to drive the light beam generator 1 and the image collector 3 to perform translational movement relative to the wireless charging and transmitting device 300, so as to adjust the positions of the light beam generator 1 and the image collector 3, for example: the light beam generator 1 and the image collector 3 may be close to or far from the wireless charging transmitter 300, or may be moved along one side of the wireless charging transmitter 300 to continuously project the wireless charging transmitter 300 and capture a plurality of images of the projected images, or may be moved in other moving manners, as long as the light beam generator 1 and the image collector 3 can be adjusted to a position convenient for detecting the foreign object 500 on the wireless charging transmitter 300, which is not specifically limited herein. In addition, the specific structural form of the translational movement mechanism 4 is not particularly limited in this embodiment.
In this embodiment, the first lifting mechanism 5 is configured to drive the presenter 2 to perform lifting movement relative to the wireless charging transmission device 300, so as to adjust the height of the presenter 2 according to different situations, lift the presenter 2 when the foreign object 500 needs to be detected, and retract the presenter 2 when the foreign object 500 does not need to be detected, so as to prevent the presenter 2 from being exposed outside for a long time and reducing the service life. It should be noted that, in the present embodiment, there are various specific structures of the first elevating movement mechanism 6, for example: the first lifting and lowering mechanism 5 is composed of a lifting and lowering support rod set, but the first lifting and lowering mechanism 5 may have other structures, which are not illustrated herein.
Therefore, the foreign object monitoring device 100 according to the embodiment of the present invention adjusts the light beam generator 1 and the image collector 3 to the position convenient for detecting the foreign object 500 of the wireless charging and transmitting device 300 through the translational movement mechanism 4, drives the presenter 2 to ascend and descend to the position convenient for displaying the projection picture of the light beam generator 1 through the first ascending and descending movement mechanism 5, collects the image of the projection picture through the image collector 3, and determines whether the foreign object 500 exists on the wireless charging and transmitting device 300 according to the collected image of the projection picture. The foreign object monitoring device 500 of the embodiment of the invention can detect metal foreign objects, non-metal foreign objects, fine foreign objects and foreign objects with larger volume on the wireless charging and transmitting device 300. The foreign matter monitoring device 100 of the embodiment of the invention can detect the foreign matter 500 on the wireless charging transmitting device 300, is simple and convenient, and has high detection efficiency, thereby solving the problems that potential safety hazards are easily caused and the chassis of the electric automobile and the wireless charging receiving coil on the chassis are damaged due to the foreign matter on the wireless charging transmitting coil, and improving the safety of wireless charging of the electric automobile.
In some embodiments, as shown in fig. 1, the foreign object monitoring apparatus 100 further includes: second elevating movement mechanism 6 sets up on translational movement mechanism 4, and light beam generator 1 and image collector 3 all set up on second elevating movement mechanism 6, and second elevating movement mechanism 6 can drive light beam generator 1 and image collector 3 and carry out synchronous elevating movement for wireless emitter 300 that charges to make light beam generator 1 and image collector 3 adjust to the high position of the surface condition of being convenient for monitor wireless emitter 300 that charges. The height position is determined according to specific conditions, and is not specifically limited in this embodiment.
Drive light beam generator 1 and image collector 3 through second elevating movement mechanism 6 in this embodiment and carry out synchronous elevating movement for wireless emitter 300 that charges to make light beam generator 1 and image collector 3 adjust to the high position of the surface condition of being convenient for monitor wireless emitter 300 that charges, with the position of further adjusting light beam generator 1 and image collector 3, and then improve foreign matter 500 detection effect. Optionally, in this embodiment, the lowermost ends of the light beam generator 1 and the image acquirer 3 may be adjusted to a height position flush with the surface of the wireless charging and transmitting device 300, and of course, other height positions may also be used, which is not specifically limited in this embodiment.
It should be noted that there are various specific structures of the second elevating movement mechanism 6 in this embodiment, for example: the second lifting and lowering mechanism 6 is composed of a lifting and lowering support rod set, and of course, the second lifting and lowering mechanism 6 may have other structures, which are not illustrated herein.
In some embodiments, as shown in fig. 2, the translational movement mechanism 4 includes: the first horizontal movement module 41, the first horizontal movement module 41 can drive the light beam generator 1 and the image collector 3 to perform translational movement along the first horizontal direction X; the second horizontal movement module 42 is arranged on the first horizontal movement module 41, the second lifting movement mechanism 6 is arranged on the second horizontal movement module 42, and the second horizontal movement module 42 can drive the light beam generator 1 and the image collector 3 to perform translational movement along the second horizontal direction Y; wherein, the first horizontal direction X is not parallel to the second horizontal direction Y.
Translation motion 4 includes first horizontal motion module 41 in this embodiment, it can drive second horizontal motion module 42, light beam generator 1 and image collector 3 carry out translational motion along first horizontal direction X, and second horizontal motion module 42, it can drive light beam generator 1 and image collector 3 and carry out translational motion along second horizontal direction Y, with the position of adjusting light beam generator 1 and image collector 3 in a plurality of directions, and then find the foreign matter 500 monitoring position of preferred, with the better foreign matter 500 detection effect of realization. It should be noted that, in the present embodiment, the first horizontal direction X is not parallel to the second horizontal direction Y, for example: the included angle between the first direction X and the second direction Y may be 90 °, and may also be other angle values, which are not limited in this embodiment.
In some embodiments, as shown in fig. 2, the second elevating movement mechanism 6 is a vertical movement module, the vertical movement module includes a vertical rail 61, and the vertical rail 61 is disposed on the second horizontal movement module 42; and a slide member 62 slidably connected to the vertical rail 61, the light beam generator 1 and the image pickup 3 being provided on the slide member 62.
In this embodiment, the second lifting mechanism 6 can drive the light beam generator 1 and the image collector 3 to move along the third direction Z, the second lifting mechanism 6 is implemented by using a sliding structure, and of course, the second lifting mechanism 6 may have other structures, which are not illustrated herein.
In some embodiments, as shown in fig. 3, the sliding member 62 includes: a slide block which is in sliding fit with the vertical rail 61 is arranged on the side of the mounting box 621; and a rotating shaft 622 provided on an outer side wall of the mounting case 621, the rotating shaft 622 being rotatably connected to the light beam generator 1. The telescopic rod 623 is arranged in the mounting box 621, and the telescopic part of the telescopic rod 623 can penetrate out of the mounting box 621 and is hinged with the bottom of the light beam generator 1; and a first driving member 624 connected to the telescopic rod 623, the first driving member 624 being disposed in the mounting box 621, the first driving member 624 being configured to drive the telescopic rod 623 to perform a telescopic motion so as to drive the light beam generator 1 to rotate around the rotating shaft 622.
The sliding member 62 in this embodiment includes a mounting box 621, the mounting box 621 is used for mounting a rotating shaft 622, a telescopic rod 623 and a first driving member 624, the light beam generator 1 is arranged on the mounting box 621 through the rotating shaft 622, the telescopic rod 623 is driven to perform telescopic movement through the first driving member 624, and when the telescopic rod 623 extends, the light beam generator 1 is driven to rotate around the rotating shaft 622, so that the projection lens of the light beam generator 1 is oriented to be located at a position convenient for projecting the wireless charging and transmitting device 300.
It should be noted that, in the present embodiment, the image acquirer 3 may be located on the light beam generator 1, or may be arranged on the mounting box 621 side by side with the light beam generator, and is not limited specifically herein. In addition, in this embodiment, the light beam generator 1 and the image collector 3 may also be integrated devices to reduce the number of devices, so that the installation is convenient.
Alternatively, the first driving member 624 may be a motor or a cylinder in this embodiment. Of course, the first driving component 624 of the present embodiment may also be another driving device as long as it can drive the telescopic rod 623 to perform a telescopic motion, which is not illustrated herein.
In some embodiments, as shown in fig. 4, the first elevating movement mechanism 5 includes: a fixed base 51; a telescopic vertical rod 52 arranged on the fixed base 51, and the presenter 2 is suspended at the top end of the telescopic vertical rod 52; and the second driving part 53 is connected with the telescopic vertical rod 52, and the second driving part 53 is used for driving the telescopic vertical rod 52 to perform telescopic motion so as to drive the presenter 2 to ascend or descend.
Alternatively, as shown in fig. 1, the presenter 2 in this embodiment includes a rotating shaft 22 and a screen 21, and the rotating shaft 21 is disposed at the top end of a telescopic vertical rod 52. The second driving part 53 drives the telescopic vertical rod 52 to perform telescopic motion so as to drive the presenter 2 to ascend or descend. In addition, the second driving part 53 may be connected to the rotating shaft 22 for synchronously driving the rotating shaft 22 to rotate, when the telescopic vertical rod 52 is driven to extend, the rotating shaft 22 is simultaneously driven to rotate so as to open the screen 21, and when the telescopic vertical rod 52 is driven to retract, the rotating shaft is simultaneously driven to rotate so as to wind the screen 21.
Alternatively, the second driving part 53 may be a motor or a cylinder in the present embodiment. Of course, the second driving part 53 of the present embodiment may also be another driving device as long as it can drive the telescopic vertical rod 52 to perform telescopic motion, which is not illustrated herein.
In some embodiments, as shown in fig. 3, the foreign object monitoring apparatus 100 further includes: and the foreign matter adsorption machine 7 is arranged on the second lifting movement mechanism 6, and the second lifting movement mechanism 6 can drive the foreign matter adsorption machine 7 to perform lifting movement so as to adjust the position of the foreign matter adsorption machine 7 and enable the adsorption port of the foreign matter adsorption machine 7 to be flush with the surface of the wireless charging emission device 300. Alternatively, in the present embodiment, the foreign matter adsorber 7 may be a dust suction device, and the adsorption power of the dust suction device may be set according to actual needs, as long as the condition of adsorbing the foreign matter on the surface of the wireless charging and transmitting device 300 is satisfied, and the adsorption power is not specifically limited herein. Optionally, the foreign matter adsorption machine 7 further comprises a foreign matter collecting box for accommodating the foreign matters adsorbed by the foreign matter adsorption machine 7 and cleaning the foreign matters in the foreign matter collecting box periodically by manual work.
In this embodiment, when detecting that the foreign object 500 exists on the surface of the wireless charging transmitting device 300, the position of the foreign object adsorber 7 may be adjusted to make the adsorption port of the foreign object adsorber 7 flush with the surface of the wireless charging transmitting device 300, so as to adsorb the foreign object 500 to remove the foreign object 500.
In some embodiments, the foreign object monitoring device 100 further includes: the first installation groove 8 is formed in the ground 200 and is located on one side of the wireless charging and transmitting device 300, and the light beam generator 1, the image collector 3 and the translational movement mechanism 4 are all arranged in the first installation groove 8; and a second mounting groove 9 opened on the ground 200 and located at the other side of the wireless charging transmission device 300, wherein the presenter 2 and the first elevating movement mechanism 5 are both disposed in the second mounting groove 9.
In this embodiment, the foreign object monitoring device 100 is disposed in the first mounting groove 8 and the second mounting groove 9 on the ground at both sides of the wireless charging and transmitting device 300, so that the foreign object monitoring device 100 is protected from being damaged.
Optionally, the foreign object monitoring device 100 of the present embodiment further includes a first protective cover 81 and a second protective cover 91 that are openable and closable and cover the first mounting groove 8 and the second mounting groove 9, respectively. By providing the first protective cover 81 and the second protective cover 91, the light beam generator 1, the presenter 2, the foreign matter adsorbing machine 7, and the like can be protected from damage by a vehicle running on the ground when wireless charging is not performed. It should be noted that, in the present embodiment, the first protective cover 81 and the second protective cover 91 are made of materials with rolling resistance and waterproof characteristics, for example: and (4) tempering the glass.
On the other hand, the embodiment of the present invention further provides a foreign object monitoring system for wireless charging of an electric vehicle, including the foreign object monitoring device 100 described in the above embodiment and a monitoring controller 400 connected to the foreign object monitoring device 100, where the monitoring controller 400 is configured to send a monitoring control signal to the foreign object monitoring device 100, and send a foreign object removal control signal to the foreign object monitoring device 100 to remove the foreign object 500 when it is determined that the foreign object 500 exists on the surface of the wireless charging transmitting device 300 according to the image of the projection screen.
The foreign matter monitoring system for wireless charging of the electric automobile in the embodiment of the invention comprises a foreign matter monitoring device 100 and a monitoring controller 400 connected with the foreign matter monitoring device 100, after receiving the monitoring control signal, the foreign matter monitoring device 100 drives the translational movement mechanism 4 to adjust the light beam generator 1 and the image collector 3 to a position convenient for the detection of the foreign matter 500 of the wireless charging and transmitting device, and drives the first lifting movement mechanism 5 to lift the presenter 2 to a position convenient for displaying the projection picture of the light beam generator 1, starts the image collector 3 to collect the image of the projection picture, and transmits the collected image of the projected picture to the monitoring controller 400, when the monitoring controller 400 determines that the foreign object 500 exists on the wireless charging transmitting device 300 according to the collected image of the projected picture, a foreign matter removal control signal is sent to the foreign matter monitoring device 100 to control the foreign matter adsorption machine 7 to remove the foreign matter 500. The foreign matter monitoring system for the wireless charging of the electric automobile, provided by the embodiment of the invention, can realize the monitoring and removal of the foreign matter 500 on the wireless charging transmitting device 300, so that the problems that potential safety hazards are easily caused and the wireless charging receiving coil on the chassis of the electric automobile and the chassis are damaged due to the foreign matter 500 existing on the wireless charging transmitting coil are solved, and the wireless charging safety of the electric automobile is improved.
Alternatively, the foreign object monitoring apparatus 100 and the monitoring controller 400 according to the embodiment of the present invention may communicate in a wired manner or a wireless manner. Preferably, the foreign object monitoring device 100 and the monitoring controller 400 in the embodiment of the present invention communicate wirelessly, and the communication method may be any one of 3G/4G/5G, WIFI, bluetooth and Zigbee.
In another aspect, as shown in fig. 6, an embodiment of the present invention further provides a method for monitoring a foreign object in a wireless charging of an electric vehicle, including:
step S10: receiving a monitoring control signal sent by the monitoring controller 400;
step S20: the second lifting movement mechanism 6 is driven to move to drive the light beam generator 1 and the image collector 3 to ascend to a height position convenient for monitoring the surface condition of the wireless charging and transmitting device 300, and the first lifting movement mechanism 5 is driven to move to drive the presenter 2 to ascend to a height threshold position;
in this step, the height position convenient for monitoring the surface condition of the wireless charging transmitting device 300 may be a height position at which the lowest end of the light beam generator 1 is adjusted to be flush with the surface of the wireless charging transmitting device 300, or a position slightly lower than the surface of the wireless charging transmitting device 300; the height threshold position is the highest position where the presenter 2 can rise, and here the presenter 2 is directly adjusted to the highest position, so that the repeated adjustment process is omitted.
Step S30: the translational movement mechanism 4 is driven to move so as to drive the light beam generator 1 and the image collector 3 to move horizontally, and meanwhile, the light beam generator 1 projects light beams to the wireless charging and transmitting device 300 and the image collector 3 collects images of projection pictures displayed on the presenter 2;
step S40: transmitting the collected image of the projection screen to the monitoring controller 400;
step S50: analyzing the image of the projected picture and determining whether a foreign object 500400 exists on the surface of the wireless charging transmitting device 300;
step S60: if the foreign object 500 exists on the surface of the wireless charging transmitting device 300, the monitoring controller 400 sends a foreign object removal control signal to the foreign object monitoring device 100;
step S70: the foreign matter adsorber 7 is driven to operate to remove the foreign matter 500 existing on the surface of the wireless charging transmission device 300.
The foreign matter monitoring method for the wireless charging of the electric automobile, provided by the embodiment of the invention, can realize automatic monitoring and removal of the foreign matter 500 on the surface of the wireless charging transmitting device 300, solves the problems that potential safety hazards are easily caused and the wireless charging receiving coil on the chassis and the chassis of the electric automobile is damaged due to the foreign matter on the wireless charging transmitting coil, and improves the safety of the wireless charging of the electric automobile.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A foreign object monitoring device, comprising:
the light beam generator is arranged on one side of the wireless charging and transmitting device on the ground and used for projecting light beams to the wireless charging and transmitting device;
the presenter is arranged on the other side of the wireless charging and transmitting device, the light beam generator and the presenter are oppositely arranged, and the presenter is used for displaying a projection picture of the wireless charging and transmitting device projected by the light beam generator;
the image collector is arranged on the same side as the light beam generator and is used for collecting the image of the projection picture displayed on the displayer;
the light beam generator and the image collector are connected with the translational motion mechanism, and the translational motion mechanism can drive the light beam generator and the image collector to perform translational motion relative to the wireless charging and transmitting device;
and the displayer is arranged on the first lifting movement mechanism, and the first lifting movement mechanism can drive the displayer to carry out lifting movement relative to the wireless charging transmitting device.
2. The foreign object monitoring device according to claim 1, further comprising:
second elevating movement mechanism, set up in translational movement mechanism is last, light beam generator with image collector all set up in on the second elevating movement mechanism, second elevating movement mechanism can drive light beam generator with image collector for wireless emitter that charges carries out synchronous elevating movement, so that light beam generator with image collector adjusts to being convenient for the monitoring the high position of wireless emitter that charges's the surface condition.
3. The foreign object monitoring device according to claim 2, wherein the translational movement mechanism includes:
the first horizontal movement module can drive the light beam generator and the image collector to perform translational movement along a first horizontal direction;
the second horizontal movement module is arranged on the first horizontal movement module, the second lifting movement mechanism is arranged on the second horizontal movement module, and the second horizontal movement module can drive the light beam generator and the image collector to perform translational movement along a second horizontal direction;
the first horizontal direction is not parallel to the second horizontal direction.
4. The foreign object monitoring device of claim 3, wherein the second elevating movement mechanism is a vertical movement module, the vertical movement module including a vertical rail provided on the second horizontal movement module; and the sliding part is connected with the vertical track in a sliding way, and the light beam generator and the image collector are arranged on the sliding part.
5. The foreign object monitoring device according to claim 4, wherein the sliding member includes:
the side part of the mounting box is provided with a sliding block which is in sliding fit with the vertical track;
the rotating shaft is arranged on the outer side wall of the mounting box and is rotationally connected with the light beam generator;
the telescopic rod is arranged in the mounting box, and a telescopic part of the telescopic rod can penetrate out of the mounting box and is hinged with the bottom of the light beam generator;
the first driving part is connected with the telescopic rod, the first driving part is arranged in the mounting box, and the first driving part is used for driving the telescopic rod to perform telescopic motion so as to drive the light beam generator to rotate around the rotating shaft.
6. The foreign object monitoring device according to claim 1, wherein the first elevating movement mechanism includes:
a fixed base;
the telescopic vertical rod is arranged on the fixed base, and the displayer is suspended at the top end of the telescopic vertical rod;
and the second driving part is connected with the telescopic vertical rod and is used for driving the telescopic vertical rod to perform telescopic motion so as to drive the displayer to ascend or descend.
7. The foreign object monitoring device according to claim 2, further comprising: and the foreign matter adsorption machine is arranged on the second lifting motion mechanism, and the second lifting motion mechanism can drive the foreign matter adsorption machine to perform lifting motion so as to adjust the position of the foreign matter adsorption machine and enable the adsorption port of the foreign matter adsorption machine to be flush with the surface of the wireless charging and transmitting device.
8. A foreign matter monitoring device according to any one of claims 1 to 7, characterized by further comprising:
the first mounting groove is formed in the ground and located on one side of the wireless charging and transmitting device, and the light beam generator, the image collector and the translational movement mechanism are all arranged in the first mounting groove;
and the second mounting groove is formed in the ground and located on the other side of the wireless charging transmitting device, and the presenter and the first lifting movement mechanism are arranged in the second mounting groove.
9. A foreign matter monitoring system for wireless charging of an electric automobile, which is characterized by comprising a foreign matter monitoring device according to any one of claims 1 to 8 and a monitoring controller connected with the foreign matter monitoring device, wherein the monitoring controller is used for sending a monitoring control signal to the foreign matter monitoring device and sending a foreign matter removing control signal to the foreign matter monitoring device to remove foreign matters when the foreign matters exist on the surface of the wireless charging transmitting device according to the image of the projection picture.
10. A foreign matter monitoring method for wireless charging of an electric automobile is characterized by comprising the following steps:
receiving a monitoring control signal sent by a monitoring controller;
the second lifting movement mechanism is driven to move so as to drive the light beam generator and the image collector to ascend to a height position convenient for monitoring the surface condition of the wireless charging and transmitting device, and the first lifting movement mechanism is driven to move so as to drive the presenter to ascend to a height threshold position;
the translation movement mechanism is driven to move so as to drive the light beam generator and the image collector to move horizontally, and meanwhile, the light beam generator projects light beams to the wireless charging and transmitting device and the image collector collects images of projection pictures displayed on the presenter;
sending the collected images of the projection pictures to a monitoring controller;
analyzing and processing the image of the projection picture and determining whether foreign matters exist on the surface of the wireless charging and transmitting device;
if foreign matters exist on the surface of the wireless charging transmitting device, the monitoring controller sends a foreign matter removal control signal to the foreign matter monitoring device;
and driving the foreign matter adsorption machine to work so as to remove the foreign matter existing on the surface of the wireless charging and transmitting device.
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| US10668829B2 (en) * | 2018-05-04 | 2020-06-02 | Witricity Corporation | Passive flux bridge for charging electric vehicles |
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