Power battery system suitable for electric power boat

Abstract

The utility model relates to the technical field of battery systems, and particularly discloses a power battery system suitable for an electric power boat, which is characterized in that the power battery system comprises an energy storage unit and a high-voltage conversion box, the energy storage unit comprises a battery box shell and at least two battery packs arranged in the battery box shell and connected in series; the energy storage unit is electrically connected with the high-voltage conversion box, and the high-voltage conversion box comprises a high-voltage charging seat, a high-voltage relay and a direct-current conversion unit; and the high-voltage charging seat is connected with an external charging gun to charge the battery system. The energy storage unit is divided into a plurality of battery packs which are completely consistent in shape and size, the battery packs can be arranged on different ship bodies in a scattered mode, and the development cost of a battery system can be reduced. The power battery system provided by the utility model is a semi-solid high-energy density battery, can provide more electric quantity for the whole ship in a limited space, and ensures the driving range requirement of the ship.

Description

Technical Field

[0001] This patent relates to the technical field of battery systems, and particularly to a power battery system applicable to electric powered boats. Background Art

[0002] Under the background of "dual carbon", transportation emissions reduction is the most prominent. New energy technologies with power batteries as the core have achieved relatively prominent achievements in the field of road transportation. Currently, the electrification of water transportation mainly based on inland and offshore ships is in the stage of technological reserve in the early stage of industrial development, and the industrialization market has broad prospects.

[0003] The power battery system provides all energy requirements such as power, lighting, and steering for the entire ship. The total power of the power battery system is the key to restricting the endurance of electric ships. Due to the diverse and significantly different hull shapes of electric ships, how to effectively arrange the power battery system has become one of the bottlenecks restricting the large-scale application of electric ships. Summary of the Invention

[0004] In order to meet the electrification requirements of various ships and reduce the development cost of the power battery system. The utility model proposes a design method for a distributed boat power battery system, which can meet the electrification layout requirements of various hulls.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: a power battery system applicable to electric powered boats, characterized in that: it includes an energy storage unit and a high-voltage conversion box. The energy storage unit includes a battery box housing and at least two battery packs arranged in the battery box housing, and the at least two battery packs are connected in series; the energy storage unit is electrically connected to the high-voltage conversion box, and the high-voltage conversion box includes a high-voltage charging socket, a high-voltage relay, and a DC conversion unit; the high-voltage charging socket is connected to an external charging gun to complete the charging of the battery system; the high-voltage relay controls the high-voltage on and off according to instructions to achieve charge and discharge management; the DC conversion unit converts the high-voltage DC power supply into a low-voltage power supply for the use of low-voltage electrical appliances on the entire ship.

[0006] As a preferred alternative: the energy storage unit includes four battery packs.

[0007] As a preferred alternative: the power battery is a semi-solid battery using a solid electrolyte, which is integrated in the battery box by series-parallel connection.

[0008] As a preferred alternative: the material of the battery box housing is a special aluminum profile for marine anti-corrosion.

[0009] As another preferred feasible solution: The energy storage unit further includes a thermal management system, and the thermal management system includes a liquid cooling subsystem and a liquid heat subsystem; the heating or cooling requirements of the battery can be achieved by adjusting the thermal management circuit.

[0010] As another preferred feasible solution: The thermal management system is connected to the ship-wide thermal management system.

[0011] As another preferred feasible solution: The energy storage unit further includes electrical safety components, and the electrical safety components include a high-voltage relay and a fuse; when the high voltage is cut off, the high-voltage relay disconnects to ensure that the battery pack does not form a high-voltage circuit to the outside.

[0012] After adopting the above structure, the advantages of the present utility model compared with the prior art are: Dividing the energy storage unit into multiple battery packs with exactly the same shape and size can achieve decentralized layout on different hulls, which is beneficial to reducing the development cost of the battery system;

[0013] The power battery system provided by the present utility model is a semi-solid high-energy density battery, which can provide more power for the whole ship in a limited space to ensure the cruising range requirement of the boat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the overall structure of the power battery system of the embodiment of the present invention.

[0016] In the figure: 10 - high-voltage box;

[0017] 20 - energy storage unit; 21 - battery pack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] 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. 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" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable 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.

[0021] The following is only the preferred embodiment of the present invention and does not limit the protection scope of the present invention accordingly.

[0022] Embodiment, see Figure 1 As shown: A power battery system applicable to an electric power boat includes an energy storage unit 20 and a high-voltage conversion box 10. The energy storage unit 20 includes a battery box housing and at least two battery packs 21 arranged inside the battery box housing. At least two battery packs 21 are connected in series; the energy storage unit 20 is electrically connected to the high-voltage conversion box 10. The high-voltage conversion box 10 includes a high-voltage charging socket, a high-voltage relay, and a DC conversion unit; the high-voltage charging socket is connected to an external charging gun to complete the charging of the battery system; the high-voltage relay controls the high-voltage on and off according to instructions to achieve charge and discharge management; the DC conversion unit converts the high-voltage DC power supply into a low-voltage power supply for the use of low-voltage electrical appliances on the whole ship.

[0023] Preferably: The energy storage unit 20 includes four battery packs 21.

[0024] The power battery is a semi-solid battery using a solid electrolyte, which is integrated in the battery box through a series-parallel connection method.

[0025] The material of the battery box housing is a special aluminum profile for marine anti-corrosion.

[0026] The energy storage unit 20 further includes a thermal management system. The thermal management system includes a liquid cooling subsystem and a liquid heating subsystem; the heating or cooling requirements of the battery can be achieved by adjusting the thermal management circuit.

[0027] The thermal management system is connected to the ship-wide thermal management system.

[0028] The energy storage unit 20 further includes an electrical safety component, which includes a high-voltage relay and a fuse; when the high voltage is cut off, the high-voltage relay disconnects to ensure that the battery pack 21 does not form a high-voltage circuit to the outside.

[0029] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A power battery system applicable to an electric-powered boat, characterized in that: It includes an energy storage unit and a high-voltage conversion box. The energy storage unit includes a battery box housing and at least two battery packs disposed within the battery box housing, and the at least two battery packs are connected in series. The energy storage unit is electrically connected to the high-voltage conversion box, and the high-voltage conversion box includes a high-voltage charging socket, a high-voltage relay, and a DC conversion unit. The high-voltage charging socket is connected to an external charging gun to complete the charging of the battery system. The high-voltage relay controls the high-voltage on and off according to instructions to achieve charge and discharge management. The DC conversion unit converts the high-voltage DC power supply into a low-voltage power supply for use by the low-voltage electrical appliances of the whole ship.

2. The power battery system according to claim 1, wherein: The energy storage unit includes four battery packs, and the four battery packs are connected in series.

3. The power battery system according to claim 1, wherein: The power battery is a semi-solid battery using a solid electrolyte, which is integrated by series and parallel connections and placed inside the battery box.

4. The power battery system according to claim 1, wherein: The material of the battery box housing is special aluminum alloy for marine anti-corrosion.

5. The power battery system according to claim 1, characterized in that: The energy storage unit further includes a thermal management system, and the thermal management system includes a liquid cooling subsystem and a liquid heating subsystem. The heating or cooling requirements of the battery can be achieved by adjusting the thermal management circuit.

6. The power battery system according to claim 5, wherein: The thermal management system is connected to the thermal management system of the whole ship.

7. The power battery system according to claim 1, wherein: The energy storage unit further includes electrical safety components, and the electrical safety components include a high-voltage relay and a fuse. When the high voltage is cut off, the high-voltage relay disconnects to ensure that the battery pack will not form a high-voltage circuit to the outside.

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