CN109177763B - Wireless charging magnetic coupling structure and autonomous underwater vehicle system - Google Patents
Wireless charging magnetic coupling structure and autonomous underwater vehicle system Download PDFInfo
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- CN109177763B CN109177763B CN201811242777.3A CN201811242777A CN109177763B CN 109177763 B CN109177763 B CN 109177763B CN 201811242777 A CN201811242777 A CN 201811242777A CN 109177763 B CN109177763 B CN 109177763B
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- H02J7/025—
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- H02J5/005—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- 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
- B60L2200/00—Type of vehicles
- B60L2200/32—Waterborne vessels
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a wireless charging magnetic coupling structure and an autonomous underwater vehicle. The magnetic coupling structure is applied to the autonomous underwater vehicle and comprises a transmitting end arranged on a charging dock and a receiving end arranged on the autonomous underwater vehicle, wherein the transmitting end comprises a transmitting coil and a transmitting magnetic core arranged on one side, far away from the autonomous underwater vehicle, of the transmitting coil. The invention can help the autonomous underwater vehicle to realize seabed wireless charging, and solves the problems of poor endurance and difficult charging of the autonomous underwater vehicle. According to the transmitting end of the magnetic coupling structure, the transmitting magnetic core is arranged on one side of the transmitting coil, so that the limitation of the transmitting magnetic core on the transmitting coil is reduced, and the flexibility of the transmitting coil is increased; and a distance is reserved between the magnetic core at the transmitting end and the autonomous underwater vehicle, so that the phenomenon that the seawater pressure changes the parameters of the transmitting magnetic core is avoided, and the adaptability of the system to underwater wireless charging is improved.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a magnetic coupling structure for wireless charging and an autonomous underwater vehicle system.
Background
The sea contains a great deal of biological resources and mineral resources, but the human beings have little understanding of the sea. Autonomous underwater vehicles (auv) (autonomous underwater vehicle) are important tools for helping people to know and explore the ocean. In recent years, although AUV has played an important role in marine defense safety, marine environmental observation, marine resource exploration, and the like. However, the self volume and the load capacity of the AUV limit, the capacity of the carried battery is limited, and the further development of the AUV is always limited by the endurance problem. There are two conventional methods of charging the AUV: the first is that when the electric quantity of the AUV battery is exhausted, the AUV battery is fished to a mother ship, a battery cabin is opened to replace a fully charged battery or an external charging circuit is connected for charging, and the mode is too complicated, and the running and maintenance cost is increased; the other mode is that the watertight plug of wet plug is adopted, and this kind of mode need not open the battery compartment at every turn, but the watertight plug of wet plug can take place ageing after the operation of multitime plug, has the danger of short circuit. In addition, the two modes require the mother ship as a guarantee, so that the concealment of the AUV is reduced, the manual intervention is required, the working efficiency of the AUV is reduced, and the unattended target cannot be realized.
The method for wirelessly charging the AUV in a non-wire contact mode does not generate electric sparks and does not need human intervention, and is an ideal method for solving the problem of AUV endurance and realizing the unattended target. At present, some magnetic coupling devices for wirelessly charging the AUV have been proposed, and at a transmitting end, a transmitting coil is often wound on a transmitting magnetic core, so that the shape and the number of turns of the transmitting coil are limited by the transmitting magnetic core, and the setting of the transmitting coil is limited; and when the submarine is charged, the transmitting magnetic core is basically attached to the AUV and is influenced by seawater pressure, and the shell of the transmitting end is extruded, so that the transmitting magnetic core is directly pressed and even deformed, the magnetic conductivity of the transmitting magnetic core is changed, and the normal work of the system is influenced.
Disclosure of Invention
In view of the above, an objective of the present invention is to provide a wirelessly charged magnetic coupling structure and an autonomous underwater vehicle system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a wireless charging magnetic coupling structure, which is applied to an autonomous underwater vehicle and comprises a transmitting end arranged on a charging dock and a receiving end arranged on the autonomous underwater vehicle, wherein the transmitting end comprises a transmitting coil and a transmitting magnetic core arranged on one side of the transmitting coil, which is far away from the autonomous underwater vehicle, and a distance is reserved between the transmitting magnetic core and the autonomous underwater vehicle.
Optionally, the minimum dimension of the distance is a thickness of the transmitting coil.
Optionally, at least one of the transmitting core and the transmitting coil has a profile that conforms to a profile of the autonomous underwater vehicle.
Optionally, the transmit coil comprises a first coil and a second coil arranged along a circumference of the autonomous underwater vehicle.
Optionally, the receiving end includes a receiving coil, and the receiving coil is an air coil.
Optionally, the receive coils are arranged in a radial direction of the autonomous underwater vehicle.
Optionally, one transmitting end and one receiving coil are provided, one end of each receiving coil is attached to the inner wall of the autonomous underwater vehicle, and the other end of each receiving coil extends in the radial direction of the autonomous underwater vehicle.
Optionally, a dimension of the receive coils in the radial direction is less than or equal to a radius of the autonomous underwater vehicle.
Optionally, the two emission ends are oppositely arranged along the radial direction of the autonomous underwater vehicle;
the receiving coil is arranged between the two transmitting ends, and both ends of the receiving coil along the radial direction of the autonomous underwater vehicle are attached to the inner wall of the autonomous underwater vehicle;
or,
two receiving coils are arranged between the two transmitting ends and are arranged along the opposite direction of the two transmitting coils.
Another aspect of the invention provides an autonomous underwater vehicle system comprising an autonomous underwater vehicle and a charging dock for wirelessly charging the autonomous underwater vehicle, the system comprising a magnetic coupling structure as described in any of the above, wherein the transmitting end is provided on the charging dock and the receiving end is provided on the autonomous underwater vehicle.
The wireless charging magnetic coupling structure provided by the invention can help an autonomous underwater vehicle to realize seabed wireless charging, and solves the problems of poor endurance and difficult charging of the autonomous underwater vehicle. According to the transmitting end of the magnetic coupling structure, the transmitting magnetic core is arranged on one side of the transmitting coil, so that the limitation of the transmitting magnetic core on the transmitting coil is reduced, and the flexibility of the transmitting coil is improved; and a distance is reserved between the transmitting magnetic core and the autonomous underwater vehicle, when the underwater vehicle is charged on the seabed, even if the transmitting magnetic core is influenced by seawater pressure, the shell of the transmitting end is pressed and deformed, the shell cannot be directly attached to the transmitting magnetic core, and the transmitting magnetic core cannot sense the pressure, so that the magnetic conductivity of the transmitting magnetic core cannot be influenced basically, the normal operation of the whole charging system is ensured, and the adaptability of the magnetic coupling structure to underwater wireless charging is improved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a transmitter in a magnetic coupling structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating one embodiment of a transmitting core in a magnetic coupling configuration provided by the present invention;
FIG. 3 illustrates a schematic diagram of one embodiment of a magnetic coupling structure provided by the present invention;
FIG. 4 is a schematic structural diagram of another embodiment of a magnetic coupling structure provided by the present invention;
FIG. 5 is a schematic structural diagram illustrating yet another embodiment of a magnetic coupling structure provided by the present invention;
fig. 6 is a schematic structural diagram of the autonomous underwater vehicle system according to the present invention during charging.
In the figure, the position of the upper end of the main shaft,
1. an autonomous underwater vehicle;
2. a transmitting end; 21. a transmitting coil; 211. a first coil; 212. a second coil; 22. a transmitting magnetic core;
3. a receiving end; 31. and a receiving coil.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in order to avoid obscuring the nature of the present invention, well-known methods, procedures, and components have not been described in detail.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The present application provides an autonomous underwater vehicle system, as shown in fig. 6, comprising an autonomous underwater vehicle 1, a charging dock for wirelessly charging the autonomous underwater vehicle 1, and a magnetic coupling structure. As shown in fig. 1 to 6, the magnetic coupling structure includes a transmitting end 2 disposed on the charging dock and a receiving end 3 disposed on the autonomous underwater vehicle 1, the transmitting end 2 includes a transmitting coil 21 and a transmitting core 22 disposed on a side of the transmitting coil 21 away from the autonomous underwater vehicle 1, and a distance is left between the transmitting core 22 and the autonomous underwater vehicle 1, that is, the transmitting coil 21 is not wound around the transmitting core 22. When the autonomous underwater vehicle 1 is charged, the transmitting coil 21 is basically attached to the outer surface of the autonomous underwater vehicle 1, and the transmitting end 2 and the receiving end 3 are charged in a wireless mode.
The magnetic coupling structure can help the autonomous underwater vehicle to realize seabed wireless charging, and solves the problems of poor endurance and charging difficulty of the autonomous underwater vehicle 1. In one embodiment, the transmitting core has two winding portions around which the transmitting coil is wound, respectively, and the structure is such that the space between the two winding portions is limited, and therefore, after the transmitting core is determined, the diameter of a single turn and the number of turns of the transmitting coil are determined, resulting in the transmitting coil being limited by the transmitting core. The transmitting end 2 of the magnetic coupling structure of the invention is provided with the transmitting magnetic core 22 at one side of the transmitting coil 21, the transmitting magnetic core 22 is not provided with a winding part and is directly positioned at one side of the transmitting coil 21, thus, the coil diameter and the number of turns of the transmitting coil 21 are not limited by the transmitting magnetic core 22 and can be freely adjusted according to the system parameter requirement, thereby increasing the flexibility of the setting of the transmitting coil 21; moreover, the emission magnetic core 22 has higher hardness and brittleness, and the winding part is not arranged, so that the emission magnetic core 22 can be conveniently processed; meanwhile, the magnetic coupling structure does not need to change the appearance of the autonomous underwater vehicle 1, and the reconstruction cost of the existing autonomous underwater vehicle 1 is reduced.
It can be understood that both the transmitting end 2 and the receiving end 3 include shells, when the autonomous underwater vehicle 1 is charged underwater, although the transmitting end 2 and the receiving end 3 are protected by the shells, the shells are slightly deformed under the influence of seawater pressure, and if the transmitting magnetic core 22 is basically attached to the autonomous underwater vehicle 1 (i.e., the transmitting magnetic core 22 is attached to the shells of the transmitting end 2), the transmitting magnetic core is subjected to pressure when the shells are deformed, so that parameters such as magnetic permeability of the transmitting magnetic core itself are changed, and the actual use of the parameters debugged on the ground is changed, so that the normal operation of the whole system is influenced. By adopting the magnetic coupling structure, a distance is reserved between the emission magnetic core 22 and the autonomous underwater vehicle 1, namely the emission magnetic core 22 and the shell of the emission end 2 are arranged at intervals, so that even if the shell is slightly deformed under the action of seawater pressure, the shell cannot be transmitted to the emission magnetic core 22, and meanwhile, the distance between the emission magnetic core 22 and the shell (or the autonomous underwater vehicle 1) can also play a role in buffering the pressure of seawater, so that parameters such as the magnetic conductivity of the emission magnetic core 22 cannot be influenced, the normal work of the whole system can be ensured, and the adaptability of the magnetic coupling structure to underwater wireless charging is improved.
Further, the minimum dimension of the distance is the thickness of the transmitting coil 21, and when the transmitting coil 21 is a planar coil, the minimum dimension of the distance is the coil diameter of the transmitting coil 21, that is, the minimum distance between the transmitting core 22 and the autonomous underwater vehicle 1 is the coil diameter of the transmitting coil 21.
At least one of the transmitting core 22 and the transmitting coil 21 has a contour that matches a contour of the autonomous underwater vehicle 1, that is, a contour of the transmitting coil 21 or the transmitting core 22 matches a contour of the autonomous underwater vehicle 1, or both the transmitting coil 21 and the transmitting core 22 may match a contour of the autonomous underwater vehicle 1, it should be noted that, the above contour is consistent in that the shape of the transmitting coil 21 or the transmitting core 22 is the same as the shape that is fitted to the autonomous underwater vehicle 1, as shown in fig. 2-6, the autonomous underwater vehicle 1 has a cylindrical structure, one surface of the transmitting coil 21 and the transmitting core close to the autonomous underwater vehicle 1 is a cylindrical surface, when the autonomous underwater vehicle 1 is charged, all parts of the transmitting coil 21 can be attached to the autonomous underwater vehicle 1, so that the charging efficiency of the autonomous underwater vehicle 1 is improved.
In each transmitting terminal 2, the transmitting magnetic core 22 is a soft magnetic core, the material of the soft magnetic core may be ferrite or soft magnetic alloy, and the addition of the soft magnetic core can improve the coupling capability of the magnetic coupling structure and reduce the magnetic leakage of the magnetic coupling structure. The transmitting core 22 may be provided with one or a plurality of, such as two, three or more, and when one transmitting core 22 is provided, the transmitting core 22 may have a strip-shaped structure extending along the circumferential direction of the autonomous underwater vehicle 1, and the width of the strip-shaped structure is smaller than that of the transmitting coil 21. Wherein the width refers to the dimension in the axial direction of the autonomous underwater vehicle 1.
In an embodiment, the transmitting coil 21 in each transmitting end 2 comprises a first coil 211 and a second coil 212 arranged along the circumference of the autonomous underwater vehicle 1, and referring to fig. 1, 3 to 6, the number of turns of the first coil 211 and the second coil 212 may be equal or not, and each may be a multilayer coil or a single-layer coil. Preferably, the first coil 211 and the second coil 212 are closely arranged in the circumferential direction of the autonomous underwater vehicle 1. In the charging state of the autonomous underwater vehicle 1, the current flow direction of the adjacent portions of the first coil 211 and the second coil 212 is the same. In such an embodiment, the transmitting core 22 preferably spans the first coil 211 and the second coil 212, and may extend from the center of the first coil 211 to the center of the second coil 212. In actual manufacturing, the first coil 211 and the second coil 212 may be wound, the first coil 211 and the second coil 212 may be arranged in close proximity, and the transmitting core 22 may be attached to the same side of the first coil 211 and the second coil 212.
It should be noted that, when the central areas of the first coil 211 and the second coil 212 are hollow, a gap is formed between the transmitting magnetic core 22 and the autonomous underwater vehicle 1 (or the hull), so that the pressure of seawater can be further buffered. When the central areas of the first coil 211 and the second coil 212 are fully wound, the coil is fully wound between the transmitting core 22 and the autonomous underwater vehicle 1 (or hull).
The receiving end 3 comprises a receiving coil 31, and the receiving coil 31 is an air coil, so that the receiving magnetic core is reduced, the size and the weight of the receiving end 3 are reduced, and the weight of the autonomous underwater vehicle 1 is reduced.
In one embodiment, the receiving coil 31 is arranged along the radial direction of the autonomous underwater vehicle 1, that is, the receiving coil 31 is located on the radial surface of the autonomous underwater vehicle 1, as shown in fig. 3 to 6, when the receiving coil 31 is a rectangular coil, two opposite sides of the receiving coil 31 are arranged along the axial direction of the autonomous underwater vehicle 1, and two other opposite sides are arranged along the radial direction of the autonomous underwater vehicle 1, so that when the autonomous underwater vehicle 1 returns to a charging dock to be charged, the receiving end 3 is located at the middle of the transmitting end 2, for example, the receiving coil 31 is located at the adjacent portion of the first coil 211 and the second coil 212. With this arrangement, the receiving coil 31 is parallel to the portion close to the transmitting coil 21 and the portions adjacent to both of the first coil 211 and the second coil 212 at the time of charging, and the efficiency of wireless transmission can be increased.
At least one end of the receiving coil 31 in the radial direction of the autonomous underwater vehicle 1 is attached to the inner wall of the autonomous underwater vehicle 1, that is, only one end of the receiving coil 31 may be attached to the inner wall of the autonomous underwater vehicle 1, as shown in fig. 3 and 5; both ends of the receiving coil 31 may also be attached to the inner wall of the autonomous underwater vehicle 1, as shown in fig. 4.
The transmitting end 2 and the receiving coil 31 may be respectively provided with one, two or more, and specifically, the following arrangement may be adopted:
in the first mode, there is one transmitting end 2 and one receiving coil 31, as shown in fig. 3, the transmitting end 2 may be disposed at any position outside the autonomous underwater vehicle 1, one end of the receiving coil 31 is attached to the inner wall of the autonomous underwater vehicle 1, and the other end extends in the radial direction of the autonomous underwater vehicle 1. Preferably, the size of the receiving coils 31 in the radial direction of the autonomous underwater vehicle 11 is smaller than or equal to the radius of the autonomous underwater vehicle 1.
In a second mode, two transmitting ends 2 are oppositely arranged along the radial direction of the autonomous underwater vehicle 1, that is, the two transmitting ends 2 are symmetrically arranged about the axis of the autonomous underwater vehicle 1, and in this case, one or two receiving coils 31 may be arranged.
When a receiving coil 31 is provided, as shown in fig. 4, a receiving coil 31 is provided between the two transmitting ends 2, both ends of the receiving coil 31 in the radial direction of the autonomous underwater vehicle 1 are attached to the inner wall of the autonomous underwater vehicle 1, when the receiving coil 31 is a rectangular coil, both short sides of the receiving coil 31 are aligned with the axial direction of the autonomous underwater vehicle 1, and both long sides are provided in the radial direction of the autonomous underwater vehicle 1, so that the size of the receiving coil 31 in the radial direction of the autonomous underwater vehicle 1 is substantially equal to the diameter of the autonomous underwater vehicle 1.
When two receiving coils 31 are provided, as shown in fig. 5, two receiving coils 31 are provided between two transmitting ends 2, and the two receiving coils 31 are arranged in the opposite direction of the two transmitting ends 2 (i.e. the radial direction of the autonomous underwater vehicle 1), in this case, the two receiving coils 31 may be arranged in a fitting manner, or may be spaced apart from each other, when the receiving coils 31 are rectangular coils, two short sides of each receiving coil 31 substantially coincide with the axial direction of the autonomous underwater vehicle 1, and two long sides of each receiving coil 31 are arranged in the radial direction of the autonomous underwater vehicle 1, preferably, the size of each receiving coil 31 in the radial direction of the autonomous underwater vehicle 1 is smaller than or equal to the radius of the autonomous underwater vehicle 1, and when the autonomous underwater vehicle 1 is charged, the current directions of adjacent portions of the two receiving coils 31 are opposite. It is understood that in this embodiment, the number of turns of the two receiving coils 31 may be equal, and may not be equal. Of course, there may also be overlapping portions of the two receive coils 31 to achieve decoupling of the two receive coils 31 by overlapping.
When the autonomous underwater vehicle system is used, when the autonomous underwater vehicle 1 returns to the charging dock, the receiving end 3 is attached to the outer surface of the autonomous underwater vehicle 1 to charge the autonomous underwater vehicle 1. In the charging process, each receiving coil 31 is ensured to be positioned near the center of the corresponding transmitting end 2, and certain dislocation is allowed, so that obviously, the tolerance of the autonomous underwater vehicle system to the non-alignment of the autonomous underwater vehicle 1 is enhanced, and the charging efficiency can be improved.
Those skilled in the art will readily appreciate that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.
Claims (7)
1. A wireless charging magnetic coupling structure is applied to an autonomous underwater vehicle and is characterized by comprising a transmitting end arranged on a charging dock and a receiving end arranged on the autonomous underwater vehicle, wherein the transmitting end comprises a transmitting coil and a transmitting magnetic core arranged on one side of the transmitting coil, which is far away from the autonomous underwater vehicle, and a distance is reserved between the transmitting magnetic core and the autonomous underwater vehicle; the transmitting coil comprises a first coil and a second coil which are arranged along the circumferential direction of the autonomous underwater vehicle, and the central areas of the first coil and the second coil are hollow, so that a gap is formed between the transmitting magnetic core and the autonomous underwater vehicle;
the receiving end comprises a receiving coil, a receiving magnetic core is reduced, the receiving coil is an air coil, the receiving coil is arranged along the radial direction of the autonomous underwater vehicle, and at least one end of the receiving coil along the radial direction of the autonomous underwater vehicle is attached to the inner wall of the autonomous underwater vehicle.
2. A magnetic coupling structure according to claim 1, wherein the smallest dimension of the distance is the thickness of the transmitter coil.
3. A magnetic coupling structure according to claim 1, wherein at least one of the transmit core and the transmit coil has a profile that conforms to a profile of the autonomous underwater vehicle.
4. A magnetic coupling according to any of claims 1 to 3, wherein one of the transmitter and receiver coils is provided, one end of the receiver coil being attached to the inner wall of the autonomous underwater vehicle and the other end extending in the radial direction of the autonomous underwater vehicle.
5. A magnetic coupling according to claim 4, wherein the dimension of the receiver coil in the radial direction is less than or equal to the radius of the autonomous underwater vehicle.
6. A magnetic coupling according to any of claims 1-3, wherein the transmitting ends are arranged in two diametrically opposite positions along the autonomous underwater vehicle;
the receiving coil is arranged between the two transmitting ends, and both ends of the receiving coil along the radial direction of the autonomous underwater vehicle are attached to the inner wall of the autonomous underwater vehicle;
or,
two receiving coils are arranged between the two transmitting ends and are arranged along the opposite direction of the two transmitting coils.
7. An autonomous underwater vehicle system comprising an autonomous underwater vehicle and a charging dock for wirelessly charging the autonomous underwater vehicle, characterized in that the system comprises a magnetic coupling according to any of claims 1 to 6, wherein the transmitting end is provided on the charging dock and the receiving end is provided on the autonomous underwater vehicle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811242777.3A CN109177763B (en) | 2018-10-24 | 2018-10-24 | Wireless charging magnetic coupling structure and autonomous underwater vehicle system |
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| CN110445260B (en) * | 2019-08-23 | 2022-12-27 | 哈尔滨工业大学（威海） | Wireless charging device and system of autonomous underwater vehicle and coil winding method |
| CN110649714B (en) * | 2019-10-24 | 2024-04-12 | 华南理工大学 | Wireless charging device of autonomous underwater vehicle |
| CN112582162B (en) * | 2020-12-02 | 2023-01-03 | 哈尔滨工程大学 | Loosely coupled transformer and underwater wireless power transmission system using same |
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| JP2017153204A (en) * | 2016-02-23 | 2017-08-31 | 昭和飛行機工業株式会社 | Non-contact power feeding device for underwater robot |
| JP2017168522A (en) * | 2016-03-14 | 2017-09-21 | 株式会社Ihi | Coil device |
| WO2018185203A1 (en) * | 2017-04-06 | 2018-10-11 | Naval Group | Contactless electrical energy transmission system, particularly for a drone |
| CN106971836A (en) * | 2017-04-27 | 2017-07-21 | 哈尔滨工业大学（威海） | Contactless energy transmission structure and submarine navigation device award electric system |
| CN207677462U (en) * | 2017-11-29 | 2018-07-31 | 北京臻迪科技股份有限公司 | A kind of wireless charging is paddled device |
| CN108688496A (en) * | 2018-05-03 | 2018-10-23 | 哈尔滨工业大学（威海） | Unmanned plane wireless charging system and unmanned plane |
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