Ship electromagnetic docking device and method, power conversion ship and electric ship

Abstract

The invention provides a ship electromagnetic docking device and method, a power conversion ship and an electric ship, and relates to the technical field of electric ships. The power conversion ship comprises the ship electromagnetic docking device, the ship electromagnetic docking device comprises an electromagnetic chuck, and the working face of the electromagnetic chuck is configured to be matched with a connecting column arranged on the side face of the power conversion ship; the electromagnetic chuck is arranged at the tail end of the telescopic driving mechanism; and the control module is electrically connected with the electromagnetic chuck and the telescopic driving mechanism. The ship electromagnetic butt joint method comprises the following steps that an electric ship and a battery replacing ship are aligned, and an electromagnetic chuck of the battery replacing ship is made to be opposite to a connecting column of the electric ship; the telescopic driving mechanism is started, so that the electromagnetic chuck is close to the connecting column; and the electromagnetic chuck is started, so that the electromagnetic chuck is magnetically connected with the connecting column. The electromagnetic chuck is adopted for magnetic connection, a complex mechanical connection structure is not needed, the magnetism of the electromagnetic chuck can be switched through electrification and de-electrification, and therefore connection and separation can be conveniently achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric ships, and in particular to a ship electromagnetic docking device, method, battery swapping ship and power-consuming ship. Background Art

[0002] Electric ships use batteries as power. Due to the high endurance requirements of electric ships and the large capacity of battery packs, replenishing the energy of electric ships by replacing the battery packs can achieve higher energy replenishment efficiency.

[0003] Current battery swapping technologies are mainly based on roadbed equipment, such as battery swapping stations applied to electric vehicles. The equipment of battery swapping stations is fixed, and the position of electric vehicles is also stable after docking. When the battery swapping station swaps the batteries of electric vehicles, there is no need to worry about the connectivity between the two.

[0004] However, electric ships float on the water surface or the sea surface, and it is difficult to achieve very accurate docking positions. At this time, it is difficult for the battery swapping equipment to accurately locate the electric ships. For example, the manipulator for carrying batteries in the battery swapping equipment is difficult to accurately pick up and place the batteries between the electric ships and the battery swapping equipment, resulting in application difficulties in the battery swapping technology of electric ships. Summary of the Invention

[0005] In a first aspect, the present invention provides a ship electromagnetic docking device, including:

[0006] An electromagnetic chuck, the working surface of the electromagnetic chuck is configured to be adaptable to a connecting column arranged on the side of the power-consuming ship;

[0007] A telescopic drive mechanism, the electromagnetic chuck is arranged at the end of the telescopic drive mechanism;

[0008] A control module, electrically connected to the electromagnetic chuck and the telescopic drive mechanism.

[0009] In an optional embodiment, the electromagnetic chuck includes a compound excitation structure.

[0010] In an optional embodiment, the compound excitation structure includes a permanent magnet and an electromagnetic coil.

[0011] In an optional embodiment, the telescopic drive mechanism adopts a hydraulic drive system.

[0012] In a second aspect, the present invention provides a battery swapping ship, and a ship electromagnetic docking device according to any one of the foregoing embodiments is arranged on the side of the hull of the battery swapping ship.

[0013] In an optional embodiment, at least two ship electromagnetic docking devices are arranged on the side of the hull.

[0014] In an optional embodiment, at least three ship electromagnetic docking devices are arranged equidistantly on the side of the hull.

[0015] In a third aspect, the present invention provides an electric boat, which includes a connecting column provided on the side of the hull, and the connecting column is made of metal.

[0016] In an optional embodiment, the height of the connecting column is not less than 2.4 meters.

[0017] In a fourth aspect, the present invention provides a method for electromagnetic docking of ships, which is used for docking a battery-changing boat according to any one of the foregoing embodiments and an electric boat according to the foregoing embodiment, and includes the following steps:

[0018] Align the electric boat and the battery-changing boat so that the electromagnetic chuck of the battery-changing boat and the connecting column of the electric boat are opposite to each other;

[0019] Start the telescopic driving mechanism to bring the electromagnetic chuck closer to the connecting column;

[0020] Start the electromagnetic chuck to magnetically connect the electromagnetic chuck and the connecting column.

[0021] The ship electromagnetic docking device provided by the present invention has the following beneficial effects:

[0022] Magnetic connection is adopted by using an electromagnetic chuck, and no complex mechanical connection structure is required. The electromagnetic chuck can switch magnetism by powering on and off, so as to facilitate connection and disconnection. Especially when applied to electric ships, due to the floating state of the ships, traditional mechanical connection is difficult to achieve or the workload is large, while electromagnetic connection can completely solve this problem, thus ensuring the stability of electric ships during battery replacement.

[0023] The electromagnetic chuck is provided at the end of the telescopic driving mechanism and can be used to adjust the position of the electromagnetic chuck, making it more convenient to connect and disconnect between the electromagnetic chuck and the connecting column of the electric boat.

[0024] The battery-changing boat provided by the present invention has the following beneficial effects: By providing a ship electromagnetic docking device, it can be easily electromagnetically connected to an electric boat. The battery-changing boat is equipped with batteries and can dock with different electric boats, provide fully charged batteries to the electric boats, and retrieve the batteries with exhausted power from the electric boats.

[0025] The electric boat provided by the present invention has the following beneficial effects: The electric boat is powered by electricity and needs to receive fully charged batteries. By providing a connecting column on the side of the hull, electromagnetic connection between the connecting column and the ship electromagnetic docking device of the battery-changing boat is achieved.

[0026] The method for electromagnetic docking of ships provided by the present invention has the following beneficial effects: After the electric boat and the battery-changing boat are aligned, stable connection between the two is achieved by using an electromagnetic chuck and a connecting column. The implementation method is simple, the operation efficiency is high, and the stability of electric ships during battery replacement can be ensured. Description of the Drawings

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a three-dimensional schematic diagram of the docking state of the battery swapping ship and the power consumption ship provided by the embodiment of the present invention;

[0029] Figure 2 It is a partial structural schematic diagram of the ship electromagnetic docking device provided by the embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the docking of the power consumption ship in the no-load state and the battery swapping ship provided by the embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of the docking of the power consumption ship in the full-load state and the battery swapping ship provided by the embodiment of the present invention.

[0032] Icon: 100 - electromagnetic chuck; 200 - telescopic drive mechanism; 300 - battery swapping ship; 400 - power consumption ship; 410 - connecting column. Specific Embodiments

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0035] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0037] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0038] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The following will describe in detail some embodiments of the present invention with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0040] Ship electromagnetic docking device

[0041] This embodiment provides a ship electromagnetic docking device, as Figure 2 shown, including: an electromagnetic chuck 100, the working surface of the electromagnetic chuck 100 is configured to be adaptable to a connection column 410 provided on the side of the powered ship 400; a telescopic driving mechanism 200, the electromagnetic chuck 100 is provided at the end of the telescopic driving mechanism 200; a control module, electrically connected to the electromagnetic chuck 100 and the telescopic driving mechanism 200. Among them, the control module is not shown in Figure 2 the figure.

[0042] The control module is electrically connected to the telescopic driving mechanism 200 and is used to control the movement of the telescopic driving mechanism 200, including extending or retracting, and the specific distance of extension.

[0043] The control module is electrically connected to the electromagnetic chuck 100 and is used for powering on and off the electromagnetic chuck 100, thereby controlling whether the electromagnetic chuck 100 has magnetism and whether it can be connected to the connecting column 410 of the electric boat 400.

[0044] In this embodiment, the electromagnetic chuck 100 is used for magnetic connection, eliminating the need for a complex mechanical connection structure. The electromagnetic chuck 100 can switch its magnetism by powering on and off, thus facilitating connection and disconnection. Especially when applied to electric ships, due to the floating state of the ship, traditional mechanical connections are difficult to achieve or require a large amount of work. However, electromagnetic connection can completely solve this problem, ensuring the stability of electric ships during battery swapping.

[0045] The electromagnetic chuck 100 is provided at the end of the telescopic drive mechanism 200 and can be used to adjust the position of the electromagnetic chuck 100, making it easier to achieve connection and disconnection between the electromagnetic chuck 100 and the connecting column 410 of the electric boat 400.

[0046] In some embodiments, the electromagnetic chuck 100 includes a composite excitation structure, enabling magnetic adsorption through the electromagnetic chuck 100 even when the connecting column 410 is made of aluminum alloy or a composite material with ferromagnetic properties. Specifically, the composite excitation structure can include a permanent magnet and an electromagnetic coil.

[0047] When the electromagnetic chuck 100 is energized forward, the magnetic field lines of the electromagnetic coil and the permanent magnet are in the same direction. At this time, the double magnetic field lines can instantaneously generate a strong adsorption force, thus adsorbing to the connecting column 410. The time required for the electromagnetic chuck 100 to be energized forward is extremely short, and it can achieve adsorption to the connecting column 410 within, for example, 0.1 seconds, with low power requirements. When the electromagnetic chuck 100 is energized backward, the magnetic field lines of the electromagnetic coil and the permanent magnet close inside the electromagnetic chuck 100, and the electromagnetic chuck 100 does not show magnetism externally, enabling the electromagnetic chuck 100 to be disconnected from the connecting column 410. Similarly, the time required for the electromagnetic chuck 100 to be energized backward is extremely short, and it can achieve disconnection from the connecting column 410 within, for example, 0.1 seconds, with low power requirements.

[0048] In some embodiments, a traditional electromagnetic chuck 100 is used. In this case, the connecting column 410 of the corresponding electric boat 400 needs to be made of ferromagnetic material.

[0049] In some embodiments, the telescopic drive mechanism 200 adopts a hydraulic drive system. The hydraulic drive system has a very high load and can be applied to connect the battery swapping boat 300 and the electric boat 400, ensuring the stability of the connection.

[0050] In some embodiments, the telescopic drive mechanism 200 can also adopt a pneumatic drive system or a traditional mechanical drive structure, such as a linear motion module.

[0051] Battery swapping boat 300

[0052] This embodiment provides a battery swapping boat 300. As shown in Figure 1 、 Figure 3 and Figure 4 , a ship electromagnetic docking device of any one of the above embodiments is provided on the side of the hull of the battery swapping boat 300.

[0053] In this embodiment, three ship electromagnetic docking devices are equidistantly arranged on the side of the hull of the battery swapping boat 300 to achieve stable connection in the length direction of the battery swapping boat 300, and at the same time, the load distribution is uniform.

[0054] In other embodiments, when there are three or more ship electromagnetic docking devices provided on the side of the hull of the battery swapping boat 300, they can also be arranged non-equidistantly to set the specific positions of the ship electromagnetic docking devices according to the specific structures of the battery swapping boat 300 and the power consumption boat 400.

[0055] In other embodiments, one or two ship electromagnetic docking devices are provided on the side of the hull of the battery swapping boat 300.

[0056] By providing the ship electromagnetic docking device, the battery swapping boat 300 can be conveniently electromagnetically connected to the power consumption boat 400. The battery swapping boat 300 is equipped with batteries and can dock with different power consumption boats 400, provide fully charged batteries to the power consumption boats 400, and retrieve the batteries with exhausted power from the power consumption boats 400.

[0057] Power consumption boat 400

[0058] This embodiment provides a power consumption boat 400. As shown in Figure 1 、 Figure 3 and Figure 4 , it includes a connecting column 410 provided on the side of the hull, and the connecting column 410 is made of metal.

[0059] The specific material of the connecting column 410 can be a traditional ferromagnetic material, and in this case, it can be applicable to various types of electromagnetic chucks 100.

[0060] When it is with an electromagnetic chuck 100 having a composite excitation structure, the specific material of the connecting column 410 can also be, for example, aluminum alloy or a composite material containing a small amount of ferromagnetic material. At this time, under the action of the electromagnetic chuck 100, the connecting column 410 can still generate a local magnetic field to achieve magnetic connection with the electromagnetic chuck 100.

[0061] In some embodiments, the height of the connecting column 410 is not less than 2.4 meters, so as to ensure that the connecting column 410 can be aligned and connected to the ship electromagnetic docking device of the battery swapping boat 300 in both the unloaded and fully loaded states of the power consumption boat 400.

[0062] Figure 3 Schematic diagram of the connection between the electric ship 400 in the unloaded state and the battery swapping ship 300 provided by the embodiment of the present invention. Figure 4 Schematic diagram of the connection between the electric ship 400 in the fully loaded state and the battery swapping ship 300 provided by the embodiment of the present invention.

[0063] As Figure 3 and Figure 4 shown, the draft depth of the electric ship 400 varies greatly between the unloaded and fully loaded states. When the height of the connecting column 410 is not less than 2.4 meters, it can ensure the connection between the connecting column 410 and the ship electromagnetic docking device in both the unloaded and fully loaded states.

[0064] Specifically, the draft depth range of the battery swapping ship 300 is generally between 1.7 meters and 2 meters, and the draft depth range of the electric ship 400 is generally between 1.6 meters and 3.6 meters, both calculated considering the fully loaded and unloaded states.

[0065] Ship electromagnetic docking method

[0066] The present embodiment provides a ship electromagnetic docking method for docking the battery swapping ship 300 according to any one of the foregoing embodiments and the electric ship 400 according to the foregoing embodiment, including the following steps:

[0067] Align the electric ship 400 and the battery swapping ship 300 so that the electromagnetic chuck 100 of the battery swapping ship 300 is opposite to the connecting column 410 of the electric ship 400;

[0068] Start the telescopic drive mechanism 200 to bring the electromagnetic chuck 100 closer to the connecting column 410;

[0069] Start the electromagnetic chuck 100 to magnetically connect the electromagnetic chuck 100 and the connecting column 410.

[0070] In some embodiments, specifically, when aligning the electric ship 400 and the battery swapping ship 300, on the basis of a preliminary alignment based on navigation signals such as GPS or Beidou, a specific alignment method can be further adopted, such as various auxiliary alignment devices, position sensors, etc., so that the electromagnetic chuck 100 of the battery swapping ship 300 is opposite to the connecting column 410 of the electric ship 400.

[0071] After the electromagnetic chuck 100 of the battery swapping ship 300 is opposite to the connecting column 410 of the electric ship 400, start the telescopic drive mechanism 200 to bring the electromagnetic chuck 100 closer to the connecting column 410, and then start the electromagnetic chuck 100 to magnetically connect the electromagnetic chuck 100 and the connecting column 410.

[0072] After the docking is completed, the battery swapping ship 300 can start the battery swapping operation.

[0073] When it is necessary to separate the electric boat 400 and the battery replacement boat 300, first separate the electromagnetic chuck 100 from the connecting column 410, and then start the telescopic drive mechanism 200 to move the electromagnetic chuck 100 away from the connecting column 410, thereby completing the separation operation.

[0074] When the electromagnetic chuck 100 is separated from the connecting column 410, depending on different electromagnetic chucks 100, methods such as power-off or reverse power supply can be adopted.

[0075] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ship electromagnetic docking device, characterized in that: include: An electromagnetic chuck (100), wherein a working surface of the electromagnetic chuck (100) is configured to be adaptable to a connecting column (410) provided on a side of an electric ship (400); A telescopic driving mechanism (200), wherein the electromagnetic suction cup (100) is arranged at the end of the telescopic driving mechanism (200); A control module is electrically connected to the electromagnetic suction cup (100) and the telescopic driving mechanism (200).

2. The ship electromagnetic docking device according to claim 1, characterized in that: The electromagnetic chuck (100) comprises a composite excitation structure.

3. The ship electromagnetic docking device according to claim 2, characterized in that: The composite excitation structure includes a permanent magnet and an electromagnetic coil.

4. The ship electromagnetic docking device according to claim 1, characterized in that: The telescopic driving mechanism (200) adopts a hydraulic driving system.

5. A battery-swapping ship (300), characterized in that: The side of the hull of the battery-swapping ship (300) is provided with a ship electromagnetic docking device according to any one of claims 1 to 4.

6. The battery-swapping ship (300) according to claim 5, characterized in that: At least two ship electromagnetic docking devices are arranged on the side of the hull.

7. The battery-swapping ship (300) according to claim 6, characterized in that: At least three ship electromagnetic docking devices are equidistantly arranged on the side of the hull.

8. An electric ship (400), characterized in that: It comprises a connecting column (410) arranged on the side of the hull, and the connecting column (410) is made of metal.

9. The electric ship (400) according to claim 8, characterized in that: The height of the connecting column (410) is not less than 2.4 meters.

10. A ship electromagnetic docking method for docking a power-exchanging ship (300) according to any one of claims 5 to 7 and a power-consuming ship (400) according to claim 8 or 9, characterized in that: The steps include: Aligning the power-using ship (400) and the power-exchanging ship (300) so that the electromagnetic chuck (100) of the power-exchanging ship (300) and the connecting column (410) of the power-using ship (400) are opposite to each other; Starting the telescopic driving mechanism (200) to bring the electromagnetic suction cup (100) and the connecting column (410) closer together; The electromagnetic chuck (100) is activated to magnetically connect the electromagnetic chuck (100) and the connecting column (410).

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