Battery changing ship

Abstract

Photovoltaic panels are arranged on a deck on the top of a bow of a ship body and the top of a battery changing box. Under the sunshine condition, the photovoltaic panel converts part of solar energy into electric energy, the electric energy is converged to the photovoltaic inverter through the photovoltaic junction box, direct current generated by the photovoltaic panel is converted into alternating current, and then the alternating current is supplied to an alternating current bus of the ship body for use, so that the daily power utilization requirement of the ship is met, and the electric power burden of the ship is effectively relieved; under the conditions of night and poor sunshine conditions, the photovoltaic system automatically quits power supply and supplies power to the ship through the battery in the battery replacement box, dependence on battery power is reduced, when the battery in the battery replacement box is insufficient, a new battery is directly replaced through the battery replacement technology, and therefore the residence time of the ship at a port is shortened, and the ship is protected from being damaged. The ship operation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of transportation equipment, and in particular to a battery-swapping ship. Background Art

[0002] With the continuous development of new energy technologies, especially the rise of electric ships, the shipping industry is ushering in a green revolution. However, while electric ships offer significant advantages in reducing emissions, their endurance is limited by the amount of battery storage, which has become a major bottleneck restricting their widespread application.

[0003] Traditional charging methods require a long time to recharge batteries while docked in port, significantly reducing vessel operational efficiency. Furthermore, pure electric vessels consume a relatively high proportion of their daily electricity. Efficiently meeting this growing demand while reducing their reliance on battery power has become a pressing issue. Utility Model Content

[0004] The purpose of this application is to provide a battery-swapping ship that can meet the daily electricity needs of the ship, effectively reduce the power burden of the ship, and improve the operating efficiency of the ship.

[0005] The embodiments of the present application can be implemented as follows:

[0006] In the first aspect, the utility model provides a battery-exchange ship, comprising a hull and a battery-exchange box and a photovoltaic system arranged on the hull, wherein the photovoltaic system comprises a plurality of photovoltaic panels, a photovoltaic junction box and a photovoltaic inverter electrically connected in sequence, and the photovoltaic panels are arranged on the top deck of the bow of the hull and on the top of the battery-exchange box, and the photovoltaic inverter and the battery in the battery-exchange box respectively supply power to the AC bus of the hull.

[0007] In an optional embodiment, all the photovoltaic panels are divided into two groups, and the two groups of photovoltaic panels are electrically connected to the first input port and the second input port of the photovoltaic inverter through the photovoltaic junction box, and the output port of the photovoltaic inverter is electrically connected to the AC bus.

[0008] In an optional embodiment, the output port of the photovoltaic inverter and the AC bus are connected to the grid via a three-phase three-wire circuit.

[0009] In an optional embodiment, a lightning protection device and an anti-backflow device are provided in the photovoltaic junction box, and the lightning protection device and the anti-backflow device are connected in series with the photovoltaic inverter and the photovoltaic panel.

[0010] In an optional embodiment, the lightning protection device includes a surge protector.

[0011] In an optional embodiment, the anti-backflow device includes a diode.

[0012] In an optional embodiment, the photovoltaic panels are arranged in a matrix.

[0013] In an optional embodiment, the photovoltaic panel is a monocrystalline silicon photovoltaic panel.

[0014] In an optional embodiment, the photovoltaic junction box is also electrically connected to the battery charging port in the battery exchange box.

[0015] In an optional embodiment, there is a control switch on the wires between the photovoltaic junction box and the battery exchange box.

[0016] Compared with the prior art, the beneficial effects of the embodiments of the present application include, for example:

[0017] By arranging photovoltaic panels on the top deck of the bow of the hull and on the top of the battery exchange box, the photovoltaic panels convert part of the solar energy into electrical energy under sunlight conditions, and then transmit the energy to the photovoltaic inverter through the photovoltaic junction box to convert the DC power generated by the photovoltaic panels into AC power, which is then supplied to the AC bus of the hull to meet the daily electricity needs of the ship and effectively reduce the power burden of the ship. At night and under poor sunlight conditions, the photovoltaic system automatically stops supplying power and then uses the battery in the battery exchange box to power the ship, reducing dependence on battery power. When the battery in the battery exchange box is low on power, it is directly replaced with a new battery through battery exchange technology, thereby reducing the ship's stay time in the port and improving the ship's operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic diagram of a battery-swapping ship according to an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of a photovoltaic system according to an embodiment of the present application.

[0021] Icons: 10-hull; 11-bow; 20-battery exchange box; 30-photovoltaic system; 31-photovoltaic panel; 32-photovoltaic junction box; 33-photovoltaic inverter; 34-lightning protection device; 35-anti-backflow device; 36-photovoltaic control cabinet. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0027] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0028] The following combination Figure 1 and Figure 2, some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0029] An embodiment of the present application discloses a battery-swapping ship, which includes a hull 10 and a battery-swapping box 20 and a photovoltaic system 30 arranged on the hull 10. The photovoltaic system 30 includes a plurality of photovoltaic panels 31, a photovoltaic junction box 32 and a photovoltaic inverter 33 electrically connected in sequence. Photovoltaic panels 31 are arranged on the top deck of the bow 11 of the hull 10 and on the top of the battery-swapping box 20. The photovoltaic inverter 33 and the batteries in the battery-swapping box 20 respectively supply power to the AC bus of the hull 10.

[0030] In this way, by arranging photovoltaic panels 31 on the top deck of the bow 11 of the hull 10 and on the top of the battery exchange box 20, under sunlight conditions, the photovoltaic panels 31 convert part of the solar energy into electrical energy and transmit it to the photovoltaic inverter 33 through the photovoltaic junction box 32 to convert the DC power generated by the photovoltaic panels 31 into AC power and then supply it to the AC bus of the hull 10 to meet the daily electricity needs of the ship, effectively reducing the power burden of the ship. At night and under poor sunlight conditions, the photovoltaic system 30 automatically stops powering the ship, and then uses the battery in the battery exchange box 20 to power the ship, reducing dependence on battery power. When the battery in the battery exchange box 20 is insufficient, the battery is directly replaced with a new battery through battery exchange technology, thereby reducing the ship's stay time in the port and improving the ship's operating efficiency.

[0031] The photovoltaic panels 31 can be either monocrystalline silicon or polycrystalline silicon, ensuring sufficient photoelectric conversion efficiency. The panels 31 are arranged in a matrix to ensure optimal light reception. They are electrically connected to the photovoltaic junction box 32 via wiring troughs, ensuring neat and tidy wiring.

[0032] The photovoltaic junction box 32 is an intermediate device connecting the multiple photovoltaic panels 31 and the photovoltaic inverter 33 , and is used to collect the DC outputs of the multiple photovoltaic panels 31 and transmit them to the photovoltaic inverter 33 .

[0033] All photovoltaic panels 31 are divided into two groups. The two groups of photovoltaic panels 31 are electrically connected to the first input port and the second input port of the photovoltaic inverter 33 through the photovoltaic junction box 32. The output port of the photovoltaic inverter 33 is electrically connected to the AC bus. In this way, one group of photovoltaic panels 31 is connected through the independent DC first input port and the second input port, so that the DC power of the two inputs is combined and converted into AC power, which is output to the AC bus through one output port.

[0034] The photovoltaic junction box 32 contains a lightning protection device 34 and an anti-backflow device 35. The lightning protection device 34 and the anti-backflow device 35 are connected in series with the photovoltaic inverter 33 and the photovoltaic panel 31. This effectively protects the photovoltaic system 30 from damage caused by lightning strikes and reverse current, ensuring the safe and stable operation of the photovoltaic system 30. The lightning protection device 34 includes a surge protector. When the instantaneous high voltage and large current generated by lightning pass through the junction box, the surge protector will quickly activate and discharge the excess current to the ground, protecting the system from lightning strikes. The anti-backflow device 35 includes a diode, such as a blocking diode. When the output voltage of the photovoltaic panel 31 is lower than the voltage of the junction box, the blocking diode will prevent the reverse flow of current, protecting the photovoltaic panel 31 and the photovoltaic inverter 33. Another example is a bypass diode. When a photovoltaic panel 31 fails or is blocked, the bypass diode will turn on, preventing current from flowing from other photovoltaic panels 31 to the faulty panel.

[0035] The photovoltaic inverter 33 converts the direct current (DC) generated by the photovoltaic panels 31 into alternating current (AC) for connection to the grid or powering loads. The output port of the photovoltaic inverter 33 and the AC busbar are connected to the grid via a three-phase, three-wire circuit. This is an efficient, stable, and cost-effective method of grid connection. Proper connection and protection measures ensure smooth connection between the photovoltaic system 30 and the grid, enabling efficient transmission and distribution of power.

[0036] Of course, the photovoltaic system 30 also includes a photovoltaic control cabinet 36, in which the photovoltaic inverter 33 is integrated. The photovoltaic control cabinet 36 contains a controller that uses a maximum power point tracking (MPPT) intelligent algorithm to improve the utilization efficiency of the photovoltaic panels 31. In addition, the photovoltaic junction box 32 is also electrically connected to the battery charging port in the battery exchange box 20, so that the excess current after photoelectric conversion can be input into the battery for storage, thereby reducing the frequency of battery replacement on the ship. Of course, there is a control switch on the wire between the photovoltaic junction box 32 and the battery exchange box 20, so that the control switch can be used to flexibly select whether the DC power generated by the photovoltaic panel 31 needs to be input into the battery for charging.

[0037] In summary, the battery-swap ship according to the embodiment of the present application has the following advantages:

[0038] 1. Green, low-carbon, environmentally friendly and energy-saving: By making full use of solar energy, a clean and renewable energy source, the use of photovoltaic systems 30 greatly reduces the battery-swap ship's dependence on battery power and significantly reduces the hull's 10 electricity consumption, which is in line with the trend of global environmental protection and sustainable development.

[0039] 2. Efficient power supply and reduced battery dependence: The efficient layout of the photovoltaic panels 31 maximizes the efficiency of solar energy collection. After being connected to the photovoltaic inverter 33, it effectively meets the power needs of the ship's daily operations, reduces the burden on battery power, extends battery life, and reduces operating costs.

[0040] 3. Intelligent Control, Optimized Utilization: The photovoltaic control cabinet 36, utilizing the MTTP intelligent algorithm, monitors and adjusts the operating status of the photovoltaic panels 31 in real time, optimizing power output and improving the overall efficiency of the photovoltaic system 30. Furthermore, the independent grid-connected design ensures that when there is sufficient sunlight, the photovoltaic system 30 can directly supply power to the ship's equipment, achieving efficient energy utilization. At night or when sunlight is insufficient, the system automatically shuts down to avoid inefficient energy consumption.

[0041] 4. Modular design, easy maintenance: The photovoltaic system 30 is composed of modular components such as photovoltaic panels 31, photovoltaic junction boxes 32, and photovoltaic inverters 33. This design not only facilitates installation and commissioning, but also makes subsequent maintenance and upgrades simpler and faster, reducing maintenance costs and time.

[0042] 5. Strong adaptability and wide application: This photovoltaic system 30 is suitable for various types of battery-swap ships. Whether it is a passenger and cargo ship on inland rivers or a cargo ship on coastal waters, it can achieve efficient power self-sufficiency through customized photovoltaic system 30 solutions, thereby improving the overall operational efficiency and economic benefits of the ship.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery-swap ship, characterized in that: The invention comprises a hull (10), a power-exchange box (20) and a photovoltaic system (30) arranged on the hull (10), wherein the photovoltaic system (30) comprises a plurality of photovoltaic panels (31), a photovoltaic junction box (32) and a photovoltaic inverter (33) electrically connected in sequence, wherein the photovoltaic panels (31) are arranged on the top deck of the bow (11) of the hull (10) and on the top of the power-exchange box (20), and the photovoltaic inverter (33) and the battery in the power-exchange box (20) respectively supply power to the AC bus of the hull (10).

2. The battery-swap ship according to claim 1, characterized in that: All the photovoltaic panels (31) are divided into two groups. The two groups of photovoltaic panels (31) are electrically connected to the first input port and the second input port of the photovoltaic inverter (33) through the photovoltaic junction box (32), and the output port of the photovoltaic inverter (33) is electrically connected to the AC bus.

3. The battery-swap ship according to claim 2, characterized in that: The output port of the photovoltaic inverter (33) and the AC bus are connected to the grid via a three-phase three-wire circuit.

4. The battery-swap ship according to claim 1, characterized in that: The photovoltaic junction box (32) contains a lightning protection device (34) and an anti-backflow device (35), and the lightning protection device (34) and the anti-backflow device (35) are connected in series with the photovoltaic inverter (33) and the photovoltaic panel (31).

5. The battery-swap ship according to claim 4, characterized in that: The lightning protection device (34) includes a surge protector.

6. The battery-swap ship according to claim 4, characterized in that: The anti-backflow device (35) includes a diode.

7. The battery-swap ship according to claim 1, characterized in that: The photovoltaic panels (31) are arranged in a matrix.

8. The battery-swap ship according to claim 1, characterized in that: The photovoltaic panel (31) is a single crystal silicon photovoltaic panel (31).

9. The battery-swap ship according to claim 1, characterized in that: The photovoltaic junction box (32) is also electrically connected to the battery charging port in the battery exchange box (20).

10. The battery-swap ship according to claim 9, characterized in that: A control switch is provided on the electric wire between the photovoltaic junction box (32) and the power exchange box (20).

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