CN113370809B - Wireless charging device capable of identifying position of electric automobile - Google Patents
Wireless charging device capable of identifying position of electric automobile Download PDFInfo
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- CN113370809B CN113370809B CN202110853147.5A CN202110853147A CN113370809B CN 113370809 B CN113370809 B CN 113370809B CN 202110853147 A CN202110853147 A CN 202110853147A CN 113370809 B CN113370809 B CN 113370809B
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- wireless charging
- plate
- lifting
- bottom plate
- lifting platform
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—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
- B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
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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
- B60L53/30—Constructional details of charging stations
- B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
- B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention relates to a wireless charging device capable of identifying the position of an electric automobile, which comprises a wireless charging transmitting plate, a lifting mechanism, a transverse moving mechanism, a position sensor, a distance sensor and a controller, wherein the wireless charging transmitting plate is connected with the lifting mechanism; the position sensor collects position information of the wireless charging receiving plate and transmits the position information to the controller; the distance sensor collects the vertical distance between the wireless charging transmitting plate and the wireless charging receiving plate and transmits the vertical distance to the controller; the controller controls the transverse moving mechanism to work according to the position information of the wireless charging receiving plate to enable the wireless charging transmitting plate to move in the horizontal direction, and controls the lifting mechanism to work according to the vertical distance information between the wireless charging transmitting plate and the wireless charging receiving plate on the electric automobile bottom plate to enable the wireless charging transmitting plate to move in the vertical direction, so that the wireless charging transmitting plate and the wireless charging receiving plate are vertically corresponding to each other in position, and the vertical distance meets the requirement. The invention can automatically identify the position of the receiving plate when charging is started, and the relative position between the two plates is ensured by moving the transmitting plate.
Description
Technical Field
The invention belongs to the field of new energy automobiles, and particularly relates to a wireless charging device capable of identifying the position of an electric automobile.
Background
With the rapid development of world economy, fossil fuel resources are gradually scarce, and the resource requirements of people cannot be met, so that the search for an alternative clean energy source becomes a focus of attention of people. The cleanliness of automobiles as the most energy consuming equipment has become one of the important issues in discussion, and in order to reduce the consumption of fossil fuel by automobiles, automobiles driven by electricity, gas and mixed energy sources have been designed, wherein the automobiles driven by electricity most meet the requirements of people for energy conservation and environmental protection, and therefore, the automobiles are also researched intensively. Charging equipment is important infrastructure in the electric automobile development process, and the charging equipment who charges now and use mostly fills electric pile and vehicle through the physical cable connection and accomplishes the task of charging, and charging equipment occupation space is big, and the life who charges mouthful is limited moreover, can cause more wastes.
The wireless charging technology well overcomes the problems of the traditional wired charging technology, and becomes the key point of research.
The existing wireless charging technologies mainly include electromagnetic induction, electromagnetic resonance, and radio waves according to different principles. The electromagnetic induction technology is only suitable for low-power wireless charging due to the fact that the transmission distance is quite limited, and cannot meet the requirement of an electric automobile on wireless charging; the radio wave technology has the disadvantages that the radio wave technology can generate larger heat to cause energy loss, the efficiency is too low, and the radio wave technology is not suitable for high-power wireless charging equipment of the electric automobile. The electromagnetic resonance technology is most suitable for wireless charging of electric vehicles, but the position requirement between the receiving board and the transmitting board is very high, and the charging efficiency is greatly influenced by the position deviation or too far distance between the two boards, so that the accurate relative position between the two charging boards must be ensured to realize the wireless charging of the electric vehicles by using the method.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a wireless charging device capable of identifying the position of an electric automobile, which can automatically ensure the accurate relative position between two charging plates.
The invention is realized by the following technical scheme:
a wireless charging device capable of identifying the position of an electric automobile comprises a wireless charging transmitting plate, a lifting mechanism, a transverse moving mechanism, a position sensor, a distance sensor and a controller;
the position sensor is used for acquiring position information of the wireless charging receiving plate on the electric automobile bottom plate and transmitting the position information to the controller;
the distance sensor is used for acquiring vertical distance information between the wireless charging transmitting plate and the wireless charging receiving plate on the electric automobile bottom plate and transmitting the vertical distance information to the controller;
the controller controls the transverse moving mechanism to work according to the position information of the wireless charging receiving plate so that the wireless charging transmitting plate moves in the horizontal direction and the wireless charging transmitting plate and the wireless charging receiving plate vertically correspond to each other in position; the controller also controls the lifting mechanism to work according to the information of the vertical distance between the wireless charging receiving plates on the wireless charging transmitting plate and the electric automobile bottom plate so that the wireless charging transmitting plate moves in the vertical direction and the vertical distance between the wireless charging transmitting plate and the wireless charging receiving plates meets the charging requirement.
Preferably, the lifting mechanism comprises a lifting platform, a movable support frame, a lifting motor and a lifting mechanism bottom plate;
the movable support frame comprises a first support rod and a second support rod, and the middle parts of the first support rod and the second support rod are hinged; the upper end of the first supporting rod is hinged with the lifting platform, the lower end of the first supporting rod is provided with a bottom plate sliding block, a lifting mechanism bottom plate guide rail is arranged on the lifting mechanism bottom plate, and the bottom plate sliding block is slidably arranged in the lifting mechanism bottom plate guide rail; the lower end of the second support rod is hinged with the bottom plate of the lifting mechanism, the upper end of the second support rod is provided with a lifting platform sliding block, a lifting platform guide rail is arranged on the lifting platform, and the lifting platform sliding block is slidably arranged in the lifting platform guide rail; the wireless charging transmitting plate is arranged at the bottom of the lifting platform; the lifting motor is used for driving the bottom plate sliding block or the lifting platform sliding block to slide, and the controller controls the lifting motor to work according to the vertical distance information between the wireless charging transmitting plate and the wireless charging receiving plate on the electric automobile bottom plate.
Furthermore, the lifting mechanism also comprises a push rod, a gear, a worm wheel and a worm;
the bottom plate slider is connected with one end of a push rod, a rack is arranged on one side of the push rod and meshed with a gear, the gear is coaxially connected with a worm wheel, the worm wheel is positioned above the gear, the worm wheel is meshed with a worm, one end of the worm is connected with the output end of a lifting motor, and the lifting motor is fixed on a lifting mechanism bottom plate.
Further, still include the closing plate, the closing plate includes first closing plate and second closing plate, and lift platform is located between first closing plate and the second closing plate, and when lift platform dropped to the bottommost, lift platform, first closing plate and second closing plate were located coplanar and sealing connection.
Further, when the elevating platform is lowered to the bottommost portion, the edge of the sealing plate is overlapped with the edge of the elevating platform up and down, and the overlapped portions of the sealing plate and the elevating platform are engaged with each other.
Further, a sealing gasket is arranged between the overlapping parts of the sealing plate and the lifting platform.
Furthermore, at least two stand columns are arranged on the lifting mechanism bottom plate, and the first sealing plate and the second sealing plate are connected with the lifting mechanism bottom plate through the stand columns.
Preferably, the radio charging transmitting plate comprises a built-in coil, an inner magnetic core and an outer magnetic core, wherein the coil is wound outside the inner magnetic core, and the outer magnetic core is wrapped outside the coil.
Preferably, the traversing mechanism comprises an X-direction guide rail, at least two Y-direction guide rails, an X-direction motor and a Y-direction motor; two ends of the X-direction guide rail are respectively provided with a Y-direction guide wheel, and the Y-direction guide wheels are arranged in the Y-direction guide rail in a sliding manner; an X-direction guide wheel is arranged in the X-direction guide rail in a sliding manner and is connected with a lifting mechanism positioned above the X-direction guide wheel; the X-direction motor is used for driving the X-direction guide wheel to rotate, and the Y-direction motor is used for driving the Y-direction guide wheel to rotate.
Furthermore, a Y-direction motor is installed on the X-direction guide rail, an X-direction motor is installed on the lifting mechanism, and an output shaft of the X-direction motor is connected with the X-direction guide wheel through a transmission belt.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the wireless charging device, the position of the wireless charging receiving plate arranged on the automobile chassis is automatically acquired and determined through the position sensor and a signal is sent to the controller, the controller controls the transverse moving mechanism to send the wireless charging transmitting plate to the position below the wireless charging receiving plate, the distance sensor acquires vertical distance information between the wireless charging transmitting plate and the wireless charging receiving plate on the electric automobile bottom plate, and the controller controls the lifting mechanism to work to enable the vertical distance between the wireless charging transmitting plate and the wireless charging receiving plate to meet the charging requirement, so that the charging efficiency is optimal. The whole charging process is automatic, a driver only needs to stop the electric automobile at a corresponding parking space and presses the switch charging equipment to automatically ensure the accurate relative position between the two charging plates for charging, and the influence on the charging efficiency caused by the position deviation or too far distance between the two charging plates is avoided.
Furthermore, the lifting mechanism changes the movement in the vertical direction into the movement in the horizontal direction, so that the space occupied by the vertical direction is reduced, and the installation and the adjustment are convenient.
Furthermore, the worm and gear mechanism has the property of reverse self-locking when moving, so that the lifting platform can be stopped at any position in time to ensure the lifting precision.
Further, set up the closing plate, charging device can realize totally enclosed under the condition that does not charge, has prevented the entering of pollutants such as dust, has improved the life of whole equipment, and the closing plate is separable structure moreover, can open when charging equipment goes wrong so that maintainer advances the type maintenance.
Further, when the lifting platform descends to the bottommost part, the edge of the sealing plate is overlapped with the edge of the lifting platform up and down, and the overlapped parts of the sealing plate and the lifting platform are mutually meshed, so that a better sealing effect can be achieved.
Furthermore, a sealing gasket is arranged between the sealing plate and the overlapped part of the lifting flat, so that the sealing effect is further improved.
Furthermore, first closing plate and second closing plate all are connected with the elevating system bottom plate through the stand, and the closing plate can move together with lift platform and make relative position between them unchangeable when charging device adjustment position, guarantees the leakproofness.
Drawings
Fig. 1 is a schematic diagram of a usage status of the wireless charging device for an electric vehicle according to the present invention.
Fig. 2 is a schematic view of the underground part of the wireless charging device of the electric vehicle.
Fig. 3 is a top view of a parking area.
Fig. 4 is a diagram of coil and core position.
Fig. 5 is an enlarged view of fig. 2 at a.
Fig. 6 is an enlarged view at B in fig. 2.
In the figure, 1, a movable support frame; 2. a wireless charging receiving board; 3. a lifting platform slide block; 4. a lifting platform; 5. a wireless charging transmitting plate; 6. sealing plates; 7. a push rod; 8. a worm gear; 9. a worm; 10. a gear; 11. a lifting motor; 12. an X-direction motor; 13. a transmission belt; 14. a lifting mechanism base plate; 15. a column; 16. an X-direction guide wheel; 17. an X-direction guide rail; 18. a Y-direction motor; 19. a Y-direction guide wheel; 20. a Y-direction guide rail; 21. a parking area; 22. a hinge; 23. a screw; 24. sealing the brush; 25. a universal bead; 26-1 and an inner magnetic core 26-1;26-2, an external magnetic core; 27. and a coil.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
Referring to fig. 1 and 2, the apparatus of the present invention includes a wireless charging transmitting plate 5 connected to a power supply, a lifting mechanism, a traversing mechanism, a position sensor, a distance sensor, and a controller.
The position sensor is used for collecting position information of the wireless charging receiving plate 2 on the electric automobile bottom plate and transmitting the position information to the controller. The distance sensor is used for acquiring vertical distance information between the wireless charging transmitting plate 5 and the wireless charging receiving plate 2 on the electric automobile bottom plate and transmitting the vertical distance information to the controller;
the controller controls the transverse moving mechanism to work according to the position information of the wireless charging receiving plate 2 so that the wireless charging transmitting plate 5 moves in the horizontal direction and the positions of the wireless charging transmitting plate 5 and the wireless charging receiving plate 2 correspond up and down; the controller is still according to the wireless vertical distance information between the receiving board 2 that charges on wireless launcher panel 5 and the electric automobile bottom plate that charges, and control elevating system work makes wireless launcher panel 5 that charges remove in vertical direction, makes the wireless vertical distance between launcher panel 5 that charges and the wireless receiving board 2 that charges satisfy the requirement of charging.
And a position sensor is arranged in the center of the lifting mechanism platform and is matched with a position sensor on a wireless charging receiving plate of the electric automobile.
As shown in fig. 1 and 2, the lifting mechanism includes a lifting platform 4, a movable support frame 1, a push rod 7, a gear 10, a worm wheel 8, a worm 9, a lifting motor 11, and a lifting mechanism base plate 14. Wherein, portable support frame 1 sets up two, and every portable support frame 1 includes first bracing piece and second bracing piece, and first bracing piece and second bracing piece middle part are articulated. The upper end of the first supporting rod is hinged with the lifting platform 4, the lower end of the first supporting rod is provided with a bottom plate sliding block, lifting mechanism bottom plate guide rails matched with the bottom plate sliding block are designed on the lifting mechanism bottom plate 14, and the bottom plate sliding block is slidably arranged in the lifting mechanism bottom plate guide rails. The lower end of the second supporting rod is hinged to the lifting mechanism bottom plate 14, the lifting platform sliding block 3 is installed at the upper end of the second supporting rod, lifting platform guide rails matched with the lifting platform sliding block 3 are designed on the lifting platform 4, and the lifting platform sliding block 3 is slidably installed in the lifting platform guide rails. The two movable supporting frames 1 are symmetrical about the lifting platform 4. Wireless transmitting panel 5 that charges installs in lift platform 4 bottom. The lifting mechanism is positioned on the ground
The bottom plate slide block is connected with a push rod 7. One side of the push rod 7 is provided with a rack matched with a gear 10, the rack is meshed with the gear 10, the gear 10 is coaxially connected with a worm wheel 8, the worm wheel 8 is positioned above the gear 10, the worm wheel 8 is meshed with a worm 9, one end of the worm 9 is connected with the output end of a lifting motor 11, and the lifting motor 11 is fixed on a lifting mechanism bottom plate 14. The controller can control the work of the lifting motor 11, the lifting motor 11 moves to drive the worm gear mechanism to move, the worm wheel 8 drives the gear 10 to rotate to push the push rod 7 with the rack to move forwards, and the movable support frame 1 lifts the lifting platform 4. The structure changes the motion in the vertical direction into the motion in the horizontal direction, reduces the space occupied by the vertical direction, and is convenient to install and adjust. The worm and gear mechanism has the property of reverse self-locking when in motion, so that the lifting platform 4 can be stopped at any position in time, and the lifting precision is ensured.
As shown in fig. 1 and 2, the traverse mechanism includes two X-direction guide rails 17, two Y-direction guide rails 20, a belt 13, and an X-direction motor 12 and a Y-direction motor 18; two ends of the X-direction guide rail 17 are respectively provided with a Y-direction guide wheel 19, and the Y-direction guide wheels 19 are arranged in the Y-direction guide rail 20 in a sliding way. Two X-direction guide wheels 16 are arranged in each X-direction guide rail 17 in a sliding mode, and the X-direction guide wheels 16 are connected with the bottom of a lifting mechanism bottom plate 14 in a lifting mechanism located above the X-direction guide wheels. The X-direction motor 12 is mounted on the elevating mechanism base plate 14, and the Y-direction motor 18 is mounted on the X-direction guide rail 17. An output shaft of the X-direction motor 12 is connected with an X-direction guide wheel 16 through a transmission belt 13, and a Y-direction guide wheel 19 is connected with an output shaft of a Y-direction motor 18. The device ensures that the wireless charging emission plate 5 can reach any point in a fixed horizontal area through the guide rails in two directions, and establishes a coordinate system through the guide rails in the two directions, when the position sensor identifies the position coordinate of the wireless charging receiving plate 2 and transmits information to the controller, the controller controls the X-direction motor 12 and the Y-direction motor 18 to work so that the wireless charging emission plate 5 reaches the corresponding coordinate position, and the design can simplify a control algorithm, is easy to control and has high precision.
In order to ensure that the device has good sealing performance, in an embodiment of the present invention, as shown in fig. 3, a sealing plate 6 is further provided, the sealing plate 6 includes a first sealing plate and a second sealing plate which are equal in size, the lifting platform 4 is located between the first sealing plate and the second sealing plate, and when the lifting platform 4 descends to the bottommost portion, the lifting platform 4, the first sealing plate and the second sealing plate are located on the same plane and achieve sealing. When the lifting platform 4 descends to the bottommost part, the edge of the sealing plate 6 is overlapped with the edge of the lifting platform 4 up and down, the overlapped part of the sealing plate 6 and the lifting platform 4 is designed into a structure capable of being mutually meshed, and a sealing gasket is added on the surface of the meshed part. At least two upright posts 15 are arranged on the lifting mechanism bottom plate 14, and the first sealing plate and the second sealing plate are both connected with the lifting mechanism bottom plate 14 through the upright posts 15, as shown in fig. 6. The design can ensure that the sealing plate 6 and the lifting platform 4 can move together to ensure that the relative positions of the sealing plate 6 and the lifting platform 4 are unchanged when the charging device adjusts the position, and the sealing plate 6 can be meshed with the lifting platform 4 to ensure the sealing performance after the charging device finishes descending.
As shown in fig. 3, the joint of the first sealing plate and the second sealing plate is connected by a detachable hinge 22, and the first sealing plate is the same in structure, and two threaded holes on the first sealing plate and the threaded holes on the upright 15 are the same in size, so that the first sealing plate and the upright 15 are connected by screws 23 matched with the threaded holes.
When the device is used, the device is arranged in a pit with the same size as the traversing mechanism in advance, the size of the sealing plate 6 is far larger than that of the pithead, a gap for the first sealing plate and the second sealing plate to be inserted horizontally is reserved around the pithead, as shown in fig. 5, an upper universal bead 25 and a lower universal bead 25 are respectively arranged between the gap and the first sealing plate and between the gap and the second sealing plate, and the universal beads 25 not only can play a guiding role, but also can play a certain supporting role on the ground on the first sealing plate and the second sealing plate. The redundant parts of the first sealing plate and the second sealing plate are inserted into the gap, and a space for the sealing plates to move is reserved in the gap. The upper and lower surfaces of the gap are both designed with sealing brushes 24, and the sealing brushes 24 are tightly attached to the sealing plate 6. The sealing brushes 24 above and below the ground gap can also ensure the sealing performance between the sealing plate 6 and the gap in the moving process. The design also takes maintenance problems into consideration, and when the charging device has problems, the hinge 22 connecting the left and right sealing plates and the screw 23 on the sealing plates can be disassembled to slide the left or right sealing plates into the gap, so that maintenance personnel can conveniently maintain the part below the ground.
The invention also provides a thought, the radio charging transmitting board 5 and the radio charging receiving board 2 both comprise a built-in coil 27, an internal magnetic core 26-1 and an external magnetic core 26-2, namely, the coil 27 is wound outside the internal magnetic core 26-1, and the external magnetic core 26-2 is wound outside the coil 27. Wrapping outer core 26-2 around the periphery of coil 27 increases the inductance of the coil (as shown in fig. 4), preventing the generation of eddy currents that would result in greater energy loss.
The specific working process of the invention is that a driver stops an automobile on a parking area 21, presses a charging switch beside the automobile, a position sensor automatically responds to determine the position of a wireless charging receiving plate 2 arranged on an automobile chassis and sends a signal to a controller, the controller controls an X-direction motor 12 and a Y-direction motor 18 to respectively act and send a lifting mechanism to the lower part of the wireless charging receiving plate 2, the position sensor sends a signal to the controller again to control the two motors, namely the X-direction motor 12 and the Y-direction motor 18 to stop moving and start the lifting motor 11, the lifting mechanism gradually rises, when the distance between a wireless charging transmitting plate 5 and the wireless charging receiving plate 2 is 10cm, a distance sensor sends a signal to the controller, and the controller controls the lifting motor 11 to stop moving and start charging, so that the charging efficiency is optimal.
The invention has the following advantages:
1. the wireless charging mode is adopted, repeated use of switch parts is avoided, and materials are saved.
2. The whole charging process is automated, a driver only needs to stop the electric automobile at a corresponding parking space, and the position between the two charging plates can be automatically determined to be charged in a progressive mode by pressing the switch charging equipment.
3. Put whole battery charging outfit in the below on parking stall, occupation space not at all, and the vertical depth of whole equipment is little, convenient and installation, adjustment and maintenance.
4. The charging device is completely closed under the condition of no charging, thereby preventing the entering of pollutants such as dust and the like, prolonging the service life of the whole equipment, and the sealing plate is of a separable structure and can be opened when the charging equipment goes wrong so as to facilitate the type-entering maintenance of maintenance personnel.
In the description of the present invention, all directions and positions for indication are directions facing the opening direction of the electric vehicle. This orientation is chosen merely to facilitate the reader's understanding of the particular structure and movement of the design, and is not intended to indicate or imply that the referenced components or movements must be placed in the named position or perform the described directional movement, and therefore should not be construed as limiting the invention.
The drawings described herein are for illustrative purposes only and as such are to be construed as illustrative of the principles of the present invention, it will be understood by those skilled in the relevant art that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (6)
1. A wireless charging device capable of identifying the position of an electric automobile is characterized by comprising a wireless charging transmitting plate (5), a lifting mechanism, a transverse moving mechanism, a position sensor, a distance sensor and a controller;
the position sensor is used for acquiring the position information of the wireless charging receiving plate (2) on the electric automobile bottom plate and transmitting the position information to the controller;
the distance sensor is used for acquiring vertical distance information between the wireless charging transmitting plate (5) and the wireless charging receiving plate (2) on the electric automobile bottom plate and transmitting the vertical distance information to the controller;
the controller controls the transverse moving mechanism to work according to the position information of the wireless charging receiving plate (2) to enable the wireless charging transmitting plate (5) to move in the horizontal direction, and the positions of the wireless charging transmitting plate (5) and the wireless charging receiving plate (2) are vertically corresponding; the controller also controls the lifting mechanism to work according to the vertical distance information between the wireless charging emission plate (5) and the wireless charging receiving plate (2) on the electric automobile bottom plate so that the wireless charging emission plate (5) moves in the vertical direction, and the vertical distance between the wireless charging emission plate (5) and the wireless charging receiving plate (2) meets the charging requirement;
the lifting mechanism comprises a lifting platform (4), a movable support frame (1), a lifting motor (11) and a lifting mechanism bottom plate (14);
the movable support frame (1) comprises a first support rod and a second support rod, and the middle parts of the first support rod and the second support rod are hinged; the upper end of the first supporting rod is hinged with the lifting platform (4), the lower end of the first supporting rod is provided with a bottom plate sliding block, a lifting mechanism bottom plate guide rail is arranged on the lifting mechanism bottom plate (14), and the bottom plate sliding block is slidably arranged in the lifting mechanism bottom plate guide rail; the lower end of the second supporting rod is hinged with a lifting mechanism bottom plate (14), the upper end of the second supporting rod is provided with a lifting platform sliding block (3), a lifting platform guide rail is arranged on a lifting platform (4), and the lifting platform sliding block (3) is slidably arranged in the lifting platform guide rail; the wireless charging transmitting plate (5) is arranged at the bottom of the lifting platform (4); the lifting motor (11) is used for driving the bottom plate sliding block or the lifting platform sliding block (3) to slide, and the controller controls the lifting motor (11) to work according to the vertical distance information between the wireless charging transmitting plate (5) and the wireless charging receiving plate (2) on the electric automobile bottom plate;
the sealing plate (6) comprises a first sealing plate and a second sealing plate, the lifting platform (4) is positioned between the first sealing plate and the second sealing plate, and when the lifting platform (4) descends to the bottommost part, the lifting platform (4), the first sealing plate and the second sealing plate are positioned on the same plane and are in sealing connection;
when the lifting platform (4) descends to the bottommost part, the edge of the sealing plate (6) is overlapped with the edge of the lifting platform (4) up and down, and the overlapped parts of the sealing plate (6) and the lifting platform (4) are meshed with each other;
at least two upright posts (15) are arranged on the lifting mechanism bottom plate (14), and the first sealing plate and the second sealing plate are connected with the lifting mechanism bottom plate (14) through the upright posts (15).
2. The wireless charging device capable of identifying the position of the electric automobile according to claim 1, wherein the lifting mechanism further comprises a push rod (7), a gear (10), a worm wheel (8) and a worm (9);
the bottom plate sliding block is connected with one end of a push rod (7), a rack is arranged on one side of the push rod (7), the rack is meshed with a gear (10), the gear (10) is coaxially connected with a worm wheel (8), the worm wheel (8) is located above the gear (10), the worm wheel (8) is meshed with a worm (9), one end of the worm (9) is connected with the output end of a lifting motor (11), and the lifting motor (11) is fixed on a lifting mechanism bottom plate (14).
3. The wireless charging device capable of identifying the position of the electric automobile according to claim 1, wherein a sealing gasket is arranged between the overlapping portions of the sealing plate (6) and the lifting platform (4).
4. The wireless charging device capable of identifying the position of the electric automobile according to claim 1, wherein the wireless charging transmitting plate (5) comprises an internal coil (27), an internal magnetic core (26-1) and an external magnetic core (26-2), the coil (27) is wound outside the internal magnetic core (26-1), and the external magnetic core (26-2) is wrapped outside the coil (27).
5. The wireless charging device capable of identifying the position of the electric vehicle according to claim 1, wherein the traversing mechanism comprises an X-direction guide rail (17), at least two Y-direction guide rails (20), an X-direction motor (12) and a Y-direction motor (18); two ends of the X-direction guide rail (17) are respectively provided with a Y-direction guide wheel (19), and the Y-direction guide wheels (19) are arranged in the Y-direction guide rail (20) in a sliding manner; an X-direction guide wheel (16) is arranged in the X-direction guide rail (17) in a sliding manner, and the X-direction guide wheel (16) is connected with a lifting mechanism positioned above the X-direction guide wheel; the X-direction motor (12) is used for driving the X-direction guide wheel (16) to rotate, and the Y-direction motor (18) is used for driving the Y-direction guide wheel (19) to rotate.
6. The wireless charging device capable of identifying the position of the electric automobile according to claim 1, wherein a Y-direction motor (18) is mounted on an X-direction guide rail (17), an X-direction motor (12) is mounted on a lifting mechanism, and an output shaft of the X-direction motor (12) is connected with an X-direction guide wheel (16) through a transmission belt (13).
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| CN202110853147.5A CN113370809B (en) | 2021-07-27 | 2021-07-27 | Wireless charging device capable of identifying position of electric automobile |
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