Electric ship, electric heavy truck, self-energizing battery power system and self-energizing power battery pack

Abstract

The utility model provides an electric ship, an electric heavy truck, a self-energizing battery power system and a self-energizing power battery. The self-energizing battery power system is composed of 1-P self-energizing power battery domains. The self-energizing power battery domain is installed in a ship power battery cabin and is composed of 1-N self-energizing power battery clusters, and each self-energizing power battery cluster is composed of 1-M self-energizing power battery packs. The self-energizing power battery pack forms an integrated unit by a charger unit, a controller and a battery pack unit; the charger unit converts alternating current electric energy into charging direct current electric energy to charge and energize the battery pack unit. The battery pack unit is formed by connecting one or more battery packs in parallel, each battery pack is formed by connecting a plurality of power batteries in series, and BMS battery management software is built in to manage and monitor the charging and discharging processes of the power batteries in the battery pack; the controller is connected to the charger unit and the battery pack unit and controls operation of the charger unit and the battery pack unit.

Description

Technical Field

[0001] The utility model relates to the technical field of battery power systems for electric ships and electric heavy trucks, and particularly relates to an electric ship, an electric heavy truck, a self-empowering battery power system and a self-empowering power battery pack. Background Art

[0002] At present, with the gradual progress of zero-emission ships and the development of power battery technology, electric ships are gradually popularized in the fields of sea transportation and river transportation. The electric ship market is gradually growing, and the maximum capacity of the power battery system of ships reaches several megawatt-hours, and battery charging is a key issue. For example, taking only the power battery capacity of small ships as an example, it reaches 1.86 MWh of Ampere (such as the Ampere ship), with a sailing time of 20 minutes per shift, and it needs to use 10 minutes to complete charging during the port stay.

[0003] At present, for the charging and energy replenishment of the battery power system for ships, mainly shore-based charging piles are used. A DC charging line is led out from the charging pile and connected to the charging interface, sent to the ship and plugged into the charging port supporting the power battery for charging. The charging current of only small ships exceeds several thousand amperes. The cross-sectional area of the DC charging cable connected between the shore-based charging pile and the ship's power battery can reach several thousand square millimeters, and a long-arm crane is required to send the DC charging cable from the shore to the ship and connect it to the power battery system for energy replenishment, and the actual operation is very inconvenient. Moreover, due to the reasons that the hardware interface standards and software communication protocols of current marine charging piles are not unified and the power of existing passenger car charging piles is too small, it is very difficult to ensure charging and energy supply along the way and along the shore, which affects the popularization and development of electric ships.

[0004] The power battery system for large ships reaches dozens or even higher megawatt-hour (MWh) levels. Obviously, borrowing or transplanting the experience and methods of electric vehicle charging piles is not sufficient.

[0005] In addition, when the power battery of an electric heavy truck (electric heavy-duty truck) reaches or exceeds megawatt-hour (MWh), there are the same problems as the charging and energy supply of electric ships. Using the current charging methods of electric vehicles can no longer meet the rapid charging and energy supply requirements of electric heavy trucks. Content of the Utility Model

[0006] In view of the technical problems and challenges of existing technologies, the purpose of this utility model is to provide a self-powered battery power system for electric ships / electric heavy trucks. This system is constructed by integrating a charger unit, controller, and power battery unit into a self-powered battery pack, thereby connecting to the battery power bus of the electric ship or electric heavy truck to meet the fast charging needs of electric heavy trucks and electric ships. This design eliminates the need for shore-based charging piles, avoiding the inconvenience of connecting large-section DC charging cables from shore-based charging piles to the ship for charging. It also avoids the problem of inconsistent protocols between different shore-based charging piles or those from different countries. Only AC power from the shore power supply is needed to achieve self-powered charging for the electric ship, without relying on external charging equipment.

[0007] According to a first aspect of the present invention, an electric ship self-powered battery power system is provided, which is composed of 1 to P self-powered battery domains.

[0008] The self-powered power battery domain is installed in the ship's power battery compartment and consists of 1 to N self-powered power battery clusters, each of which consists of 1 to M self-powered power battery packs.

[0009] The self-powered battery pack consists of an integrated unit comprising a charger unit, a controller, and a battery pack unit.

[0010] The power input terminal of the charger unit is electrically connected to the AC power supply of the ship, converting AC power into DC power for charging the battery pack unit; the charger unit has built-in charging control software to control the charging process of the battery pack unit.

[0011] The battery pack unit consists of one or more battery packs connected in parallel, and each battery pack consists of multiple power batteries connected in series. The battery pack has built-in BMS battery management software to manage and monitor the charging and discharging process of the power batteries in the pack.

[0012] The controller is connected to the charger unit and the battery pack unit, and controls the operation of the charger unit and the battery pack unit.

[0013] As an optional embodiment, the charger unit of the self-energizing power battery pack is a bidirectional reversible charger, used to realize bidirectional flow of electrical energy, including converting AC power into DC charging energy to charge and empower the battery pack unit; or inverting the DC power of the battery pack unit into AC power output.

[0014] As an optional embodiment, multiple self-powered power battery packs are electrically connected in series to form a self-powered power battery cluster.

[0015] As an optional embodiment, multiple self-energized power battery clusters are electrically connected in parallel to form a self-energized power battery domain.

[0016] As an optional embodiment, the power battery of the battery pack unit is a liquid electrolyte battery, a condensed electrolyte battery, or a solid electrolyte battery.

[0017] As an optional embodiment, the power battery of the battery pack unit is one of a cylindrical power battery, a cubic power battery, and a continuously variable power battery.

[0018] As an optional embodiment, the ship's self-powered battery power system further includes a power transformer having 1 to T secondary output windings;

[0019] The secondary output winding of the power transformer is electrically connected to the self-energized power battery pack, and sends the AC power output from the secondary output winding to the power input terminal of the charger unit.

[0020] As an optional embodiment, the power transformer is installed on the ship.

[0021] As an optional embodiment, the input voltage on the primary side of the power transformer is in the voltage range of 6kV to 35kV;

[0022] The output voltage of the secondary side of the power transformer is in the range of 100V to 2000V.

[0023] As an optional embodiment, the self-energized power battery cluster consists of one self-energized power battery pack.

[0024] As an optional embodiment, each self-powered battery cluster consists of one self-powered battery pack; correspondingly, the power transformer can be installed on shore. As an optional example, the secondary output winding of the power transformer is a single winding, with an output voltage range of 400V to 2000V.

[0025] The electric ship self-powered battery power system described in the above embodiments receives three-phase AC power from the shore power supply at the input end of the charger unit, converting it into DC power for charging. This allows for self-powered charging of the battery pack units, eliminating the need to build shore-based charging piles and avoiding the inconvenience of connecting the large-section DC charging cables of shore-based charging piles to the ship for charging. It also avoids the problem of inconsistent protocols for different shore-based charging piles or shore-based charging piles from different countries. As long as there is electricity, the electric ship can achieve self-powered charging.

[0026] According to a second aspect of the present invention, an electric vessel is also proposed, which is equipped with the aforementioned self-powered battery power system for electric vessels.

[0027] According to a third aspect of the present invention, a self-powered battery power system for an electric heavy truck is also proposed, which consists of 1 to P self-powered battery domains.

[0028] The self-empowered power battery domain is installed in the vehicle battery compartment and consists of 1 to N self-empowered power battery clusters, each self-empowered power battery cluster consisting of 1 to M self-empowered power battery packs;

[0029] The self-powered battery pack consists of an integrated unit comprising a charger unit, a controller, and a battery pack unit.

[0030] The power input terminal of the charger unit is electrically connected to the AC power supply of the connected vehicle, converting AC power into DC power for charging the battery pack unit; the charger unit has built-in charging control software to control the charging process of the battery pack unit.

[0031] The battery pack unit consists of one or more battery packs connected in parallel. Each battery pack consists of multiple power batteries connected in series. The battery pack has built-in BMS battery management software to manage and monitor the charging and discharging process of the power batteries in the pack.

[0032] The controller is connected to the charger unit and the battery pack unit, and controls the operation of the charger unit and the battery pack unit.

[0033] As an optional implementation, the charger unit of the self-energizing power battery pack is a bidirectional reversible charger, used to realize bidirectional flow of electrical energy, including converting AC power into DC charging energy to charge and empower the battery pack unit; or inverting the DC power of the battery pack unit into AC power output.

[0034] As an optional implementation, multiple self-powered power battery packs are electrically connected in series to form a self-powered power battery cluster.

[0035] As an optional implementation, multiple self-energized power battery clusters are electrically connected in parallel to form a self-energized power battery domain.

[0036] As an optional implementation, the power battery of the battery pack unit is a liquid electrolyte battery, a condensed electrolyte battery, or a solid electrolyte battery.

[0037] As an optional implementation, the input of the charger unit of each self-powered battery pack is connected to the AC power supply of the connected vehicle.

[0038] As an optional implementation, each self-energized power battery cluster consists of one self-energized power battery pack.

[0039] According to a fourth aspect of the present invention, an electric heavy-duty truck is also proposed, which is equipped with the aforementioned self-powered battery power system for electric heavy-duty trucks.

[0040] According to a fifth aspect of the present invention, a self-energizing power battery pack is also proposed, comprising an integrated unit consisting of a charger unit, a controller, and a battery pack unit, characterized in that:

[0041] The power input terminal of the charger unit is connected to the input AC power, which converts the AC power into DC power for charging the battery pack unit; the charger unit has built-in charging control software to control the charging process of the battery pack unit.

[0042] The battery pack unit consists of one or more battery packs connected in parallel, and the battery pack consists of multiple power batteries connected in series. Each battery pack has built-in BMS battery management software to manage and monitor the charging and discharging process of the power batteries in the battery pack.

[0043] The controller is connected to the charger unit and the battery pack unit, and controls the operation of the charger unit and the battery pack unit.

[0044] According to the sixth aspect of the present invention, an application of the aforementioned self-energizing power battery pack in electric ships or electric heavy trucks is also proposed. By electrically connecting 1 to M self-energizing power battery packs and connecting them to the battery power bus of the electric ship or electric heavy truck, a battery power system for the electric ship or electric heavy truck is constructed.

[0045] The self-powered battery pack described in the above embodiments receives three-phase AC power at the input end of its charger unit and converts it into DC power for charging. This allows for self-powered charging of the battery pack units without relying on external charging pile equipment, avoiding the inconvenience of using large-section DC charging cables from charging piles. It also avoids the problem of different charging piles or different charging pile protocols and ports being difficult to unify. Self-powered charging can be achieved as long as there is AC power input.

[0046] The distributed self-energizing system proposed in this utility model is suitable for energizing large-capacity battery power systems. It solves the problems of energizing safety and bypassing the international standardization of energizing protocols and interface standards. By installing a distributed self-energizing battery power system, it can easily achieve passage through global waterways, thereby contributing to the rapid development of electric ships in China. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the ship self-energizing battery power system according to an embodiment of the present utility model.

[0048] Figure 2 This is a schematic diagram of the self-energized power battery domain BD according to an embodiment of the present invention.

[0049] Figure 3 This is a schematic diagram of the self-energized power battery cluster BC according to an embodiment of the present invention.

[0050] Figure 4 This is a schematic diagram of the self-energized power battery pack BK according to an embodiment of the present invention.

[0051] Figure 5 This is a schematic diagram of the principle of a power transformer according to an embodiment of the present utility model. Detailed Implementation

[0052] To better understand the technical content of this utility model, specific embodiments are provided below in conjunction with the accompanying drawings.

[0053] Various aspects of the present invention are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments disclosed herein are not necessarily intended to include all aspects of the present invention. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed herein are not limited to any particular implementation. Furthermore, some aspects of the present invention can be used alone or in any suitable combination with other aspects disclosed herein.

[0054] {Example 1}

[0055] Combination Figures 1-5 As shown, the self-charging powered battery system for electric ships according to an embodiment of the present invention consists of 1 to P self-charging power battery domains 200, constituting a battery power system.

[0056] Taking electric ships (such as electric cargo ships, electric passenger ships, electric passenger-cargo ships, etc.) as an example, 1 to P self-powered power battery domains 200 (i.e., battery domains, abbreviated as BD) are installed on the electric ship, especially in the power battery compartment of the ship's cabin. Each self-powered power battery domain 200 consists of 1 to N self-powered power battery clusters BC (i.e., battery clusters, abbreviated as BC), and each self-powered power battery cluster BC consists of 1 to M self-powered power battery packs BK (i.e., power battery packs, abbreviated as BK).

[0057] As an optional embodiment, multiple self-powered battery packs BK are electrically connected in series to form a self-powered battery cluster BC. Multiple self-powered battery clusters BC are electrically connected in parallel to form a self-powered battery domain 200. Specifically, multiple self-powered battery clusters BC having the same number of self-powered battery packs BK are connected in parallel to form a self-powered battery domain 200, which is connected to the power bus of the electric ship.

[0058] In the embodiments of this utility model, combined with Figure 4 As shown, each self-powered battery pack BK consists of a charger unit 1, a controller 2, and a battery pack unit 3 forming an integrated unit.

[0059] The power input terminal of charger unit 1 is electrically connected to the AC power supply of the ship, converting AC power into DC power for charging battery pack unit 3. Charger unit 1 has built-in charging control software to control the charging process of battery pack unit 3.

[0060] Battery pack unit 3 consists of one or more battery packs connected in parallel, with each battery pack consisting of multiple power batteries connected in series. In particular, each battery pack has built-in BMS battery management software to manage and monitor the charging and discharging process of the power batteries within the pack.

[0061] The controller 2 is connected to the charger unit 1 and the battery pack unit 3, and controls the operation of the charger unit 1 and the battery pack unit 3.

[0062] In the embodiments of this utility model, the integrated self-powered battery pack design of the aforementioned charger unit 1, controller 2 and battery pack unit 3 specifically refers to the overall encapsulation of the three components, which are installed and integrated into a unified battery pack housing for use as a whole.

[0063] The number of battery packs contained in each self-powered battery pack BK, and the number of power batteries connected in series within each battery pack, can be designed according to the battery pack's usage requirements. The voltage output of the self-powered battery pack BK is proportional to the number of power batteries connected in series within the battery pack. For example, as an optional example, the voltage level of each self-powered battery pack BK is designed to be 1000V.

[0064] A battery pack unit contains one or more battery packs connected in parallel. Each battery pack is equipped with Battery Management System (BMS) software (module) to manage and monitor the charging and discharging process of the power batteries within the pack. The BMS software can be configured using a commercially available IC as the main control circuit. Therefore, after configuring the BMS software, parallel electrical connections between multiple battery packs can be established.

[0065] It should be understood that in the design of multiple battery packs, the number of power batteries connected in series in each battery pack is the same.

[0066] As an optional implementation, the power battery of battery pack unit 3 is a liquid electrolyte battery, a condensed electrolyte battery, or a solid electrolyte battery, or other power batteries available for marine battery power systems.

[0067] As an optional implementation, the power battery of battery pack unit 3 is one of the following: a cylindrical power battery, a cubic power battery, or a continuously variable power battery.

[0068] It should be understood that the electrodeless power battery in this example refers in particular to a cubic electrodeless power battery with high energy density and good usability and maintainability, such as the electrodeless battery design proposed in Chinese Publication No. CN116979128A as a power battery. The full text of CN116979128A is cited here for reference.

[0069] In an optional embodiment, the ship's self-powered battery power system further includes a power transformer 100 and 1 to T secondary output windings. The secondary output windings of the power transformer 100 are electrically connected to the self-powered battery pack BK, for example, via a battery power bus, to send the AC power output from the secondary output windings to the power input terminal of the charger unit 1.

[0070] As a preferred design, the power transformer 100 with 1 to T output windings is installed on the ship, i.e., the power transformer is designed to be installed on the ship, such as in a suitable location in the ship's engine room, deck, or hull.

[0071] Thus, the secondary output winding of the power transformer 100 is electrically connected to the self-energizing power battery pack BK via the ship's battery power bus, sending the AC power output from the secondary output winding to the power input terminal of the charger unit 1. The charger unit 1 converts the three-phase AC power from the output winding of the power transformer 100 into charging DC power to charge the battery pack unit 3.

[0072] As an optional embodiment, the primary side of the power transformer 100 is connected to the three-phase AC power input of the shore power grid. The primary side is a medium-voltage or low-voltage input, for example, the input voltage of the primary side is in the voltage range of 6kV to 35kV, including but not limited to 5kV, 10kV, 20kV, 35kV, etc.

[0073] The output voltage of the secondary side of the power transformer 100 is in the range of 100V to 2000V, including but not limited to 100V, 110V, 220V, 230V, 400V, 690V, 1000V, 2000V, etc., and is sent to the charger unit 1 for self-charging.

[0074] In the aforementioned embodiment, multiple self-powered battery packs BK are electrically connected in series to form a self-powered battery cluster BC, thereby increasing the output voltage of a single self-powered battery cluster BC through series connection. Simultaneously, by electrically connecting multiple self-powered battery clusters BC in parallel, a self-powered battery domain 200 is formed, achieving a greater current output.

[0075] Furthermore, by electrically connecting multiple self-energized power battery domains 200, a battery power system is formed to power electric ships and vessels.

[0076] It should be understood that in the embodiments of this utility model, the aforementioned parameters P, N, M, and T are all positive integers and can be configured and set according to the specifications and capacity of the ship's self-powered battery power system. In particular, the number T of the power transformer output windings is set to be the same as the number M of the self-powered battery pack BK.

[0077] Combination Figures 1-4 As shown, according to the implementation of the self-powered battery power system in the above embodiment, a self-powered battery pack design integrating a charger unit, controller, and power battery unit is used to construct a self-powered battery power system for electric ships. The self-powered power battery domain 200 is installed on the electric ship. Since each self-powered battery pack adopts an integrated charger unit design, it receives three-phase AC power from the shore power side and converts it into charging DC power within the charger unit to charge the battery pack unit 3. This solves the fundamental problem of fast charging for existing electric ships, eliminating the need to build shore-based charging piles and avoiding the inconvenience of connecting and charging the ship when the large-section DC charging cable of the shore-based charging pile is hoisted to the ship. At the same time, it avoids the problem of difficulty in unifying the protocols of different shore-based charging piles or shore-based charging piles in different countries. As long as there is AC power on the ship, the self-powered charging of the electric ship can be realized.

[0078] In conjunction with the embodiments of this utility model, as an optional solution, the charger unit 1 of the self-energized power battery pack BK is a bidirectional reversible charger, used to realize bidirectional flow of electrical energy, including converting the three-phase AC power on the secondary side of the power transformer 100 into a charging power supply for the battery pack unit 3; or inverting the DC power of the battery pack unit 3 into AC power and connecting it to the power grid via the primary side of the power transformer 100.

[0079] {Example 2}

[0080] In this embodiment, the self-powered battery pack BK is designed as an integrated unit consisting of a charger unit 1, a controller 2, and a battery pack unit 3, all encapsulated within a unified housing. The power input terminal of the charger unit 1 is connected to the input AC power, converting the AC power into DC power for charging the battery pack unit 3.

[0081] Battery pack unit 3 consists of one or more battery packs connected in parallel, and the battery pack consists of multiple power batteries connected in series.

[0082] The battery pack has a built-in BMS battery management software to manage and monitor the charging and discharging process of the power battery.

[0083] The charger unit 1 has built-in charging control software to control the charging process of the battery pack unit 3.

[0084] In this embodiment, one implementation of the self-powered power battery cluster BC is as follows: it consists of one self-powered power battery pack BK. For example, multiple battery groups are connected in parallel within one self-powered power battery pack BK to meet the operating current requirements, and multiple power batteries are connected in parallel within each battery group to meet the operating voltage requirements.

[0085] Furthermore, in the design of the self-empowered power battery domain BD, which consists of 1-N self-empowered power battery clusters BC, each self-empowered power battery cluster BC is composed of 1 self-empowered power battery pack BK.

[0086] Alternatively, the power transformer 100 can be installed on shore or on an electric vessel.

[0087] As an optional embodiment, the secondary output winding of the power transformer 100 is a single winding with an output voltage range of 400V to 2000V, including but not limited to 100V, 110V, 220V, 230V, 400V, 690V, 1000V, 2000V, etc., which is fed into the power input terminal of the charger unit 1, and self-powered charging is achieved through the AC / DC conversion of the charger unit 1.

[0088] {Example 3}

[0089] In this embodiment, the aforementioned electric ship self-powered battery power system is designed to be the battery power system of an electric fishing boat, and is equipped with a battery power system with a capacity of, for example, about 1 megawatt-hour (MWh).

[0090] Among them, 1 to P self-powered power battery domains 200 are all installed on the electric fishing boat. For example, the self-powered power battery domain 200 is composed of at least one self-powered power battery cluster BC and installed in an appropriate position in the hull of the electric fishing boat, such as in the power battery compartment.

[0091] As an optional embodiment, the power transformer 100 may not be installed on the electric fishing boat, but may instead be installed on the shore-based side.

[0092] The secondary output winding of the power transformer 100 is a single winding with an output voltage range of 400V to 2000V, including but not limited to 100V, 110V, 220V, 230V, 400V, 690V, 1000V, and 2000V. After being supplied to the ship, it is connected to the ship's battery power bus and electrically connected to the self-powered battery pack BK via the battery power bus. The AC power is then connected to the power input terminal of the charger unit 1, and the charger unit 1 performs self-powered charging on the battery pack.

[0093] {Example 4}

[0094] The self-powered battery power system design of the electric ship self-powered battery power system can also be applied to electric heavy trucks to build a battery power system for electric heavy trucks.

[0095] As an example, the self-powered battery power system of an electric heavy truck consists of 1 to P self-powered power battery domains 200.

[0096] The self-powered power battery domain 200 is installed in the vehicle battery compartment. In conjunction with the design of the aforementioned embodiment 1, the self-powered power battery domain 200 consists of 1 to N self-powered power battery clusters BC, and each self-powered power battery cluster consists of 1 to M self-powered power battery packs BK.

[0097] In particular, each self-powered battery pack K consists of a charger unit 1, a controller 2, and a battery pack unit 3 forming an integrated unit.

[0098] The power input terminal of the charger unit 1 is electrically connected to the AC power supply of the connected vehicle, converting AC power into DC power for charging the battery pack unit; the charger unit has built-in charging control software to control the charging process of the battery pack unit.

[0099] Battery pack unit 3 consists of one or more battery packs connected in parallel. Each battery pack consists of multiple power batteries connected in series. The battery pack has built-in BMS battery management software to manage and monitor the charging and discharging process of the power batteries in the pack.

[0100] The controller 2 is connected to the charger unit and the battery pack unit, and controls the operation of the charger unit 1 and the battery pack unit 3.

[0101] In the embodiment, the integrated self-powered battery pack design of charger unit 1, controller 2 and battery pack unit 3 specifically refers to the overall encapsulation of the three components, which are installed and integrated in a unified battery pack housing for use as a whole.

[0102] The number of battery packs contained in each self-powered battery pack BK, and the number of power batteries connected in series within each battery pack, can be designed according to the battery pack's usage requirements. The voltage output of the self-powered battery pack BK is proportional to the number of power batteries connected in series within the battery pack. For example, as an optional example, the voltage level of each self-powered battery pack BK is designed to be 1000V.

[0103] As an optional implementation, the self-energizing power battery pack used in electric heavy trucks has a charger unit 1 that is a bidirectional reversible charger, used to realize bidirectional flow of electrical energy, including converting AC power into DC charging energy to charge the battery pack unit; or inverting the DC power of the battery pack unit into AC power output.

[0104] A battery pack unit contains one or more battery packs connected in parallel. Each battery pack is equipped with Battery Management System (BMS) software (module) to manage and monitor the charging and discharging process of the power batteries within the pack. The BMS software can be configured using a commercially available IC as the main control circuit. Therefore, after configuring the BMS software, parallel electrical connections between multiple battery packs can be established.

[0105] It should be understood that in the design of multiple battery packs, the number of power batteries connected in series in each battery pack is the same.

[0106] As an optional implementation, the power battery of battery pack unit 3 is a liquid electrolyte battery, a condensed electrolyte battery, or a solid electrolyte battery, or other power batteries that can be used in marine battery power systems.

[0107] As an optional implementation, the power battery of battery pack unit 3 is one of the following: a cylindrical power battery, a cubic power battery, or a continuously variable power battery.

[0108] As an optional implementation, multiple self-energizing battery packs BK are electrically connected in series to form a self-energizing battery cluster BC. Multiple self-energizing battery clusters BC are electrically connected in parallel to form a self-energizing battery domain BD. Furthermore, the input terminal of the charger unit 1 of each self-energizing battery pack BK is connected to the AC power supply of the connected vehicle.

[0109] As an optional implementation, each self-powered battery cluster consists of one self-powered battery pack. For example, through the electrical connection of the battery pack, a single self-powered battery pack can meet the output voltage and current requirements of an electric heavy-duty truck, such as a voltage of 1000V for a single self-powered battery pack.

[0110] As an optional embodiment, the AC power supplied to the electric heavy-duty truck can be selected to be supplied through the secondary output winding of the power transformer. The AC voltage input to the electric heavy-duty truck can be selected to be in the range of 100V to 2000V, including but not limited to 100V, 110V, 220V, 230V, 400V, 690V, 1000V, etc. The AC power supply is electrically connected to the self-powered battery pack BK, for example, through the power bus. The AC power is sent to the power input terminal of the charger unit 1, and the charger unit 1 converts the AC power to DC charging power to perform self-powered charging of the battery pack unit.

[0111] Based on the above design of the self-powered battery power system for electric heavy-duty trucks, a self-powered battery pack design integrating a charger unit, controller, and power battery unit is constructed, thereby building a self-powered battery power system for electric heavy-duty trucks. The self-powered power battery pack is installed in the vehicle's battery compartment. Since the self-powered battery pack adopts an integrated charger unit design, it can receive three-phase AC power input from the outside and convert it into DC power for charging within the charger unit, thus charging the battery pack unit. This solves the problem of fast charging for existing electric heavy-duty trucks and avoids the problem of inconsistent voltage specifications, interfaces, and protocol standards when using existing electric vehicle charging piles. With the design of this utility model of the self-powered battery power system for electric heavy-duty trucks, as long as AC power is supplied to the vehicle, the self-powered charging of the electric heavy-duty truck can be completed, realizing the rapid charging of large-capacity battery power systems. It solves the problems of charging safety and bypassing the international universality of charging protocols and interface standards. With the installation of a distributed self-powered battery power system, it can easily achieve global accessibility, thereby contributing to the rapid development of electric ships and electric heavy-duty trucks.

[0112] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A self-enabled battery power system for an electrically powered watercraft, characterized by, consists of 1~P self-powered battery domains (200); The self-powered battery domain (200) is installed in a ship battery cabin and consists of 1~N self-powered battery clusters, each of which consists of 1~M self-powered battery packs; The self-powered battery pack consists of a charger unit (1), a controller (2), and a battery pack unit (3) to form an integrated unit; The power input end of the charger unit (1) is electrically connected to the alternating current power of the ship to convert alternating current power into charging direct current power to charge the battery pack unit (3). The battery pack unit (3) consists of one or more battery packs in parallel, each battery pack consists of multiple power batteries in series, and each battery pack is built-in BMS battery management software to realize the management and monitoring of the charging and discharging process of the power battery in the group. The controller (2) is connected to the charger unit (1) and the battery pack unit (3) to control the operation of the charger unit (1) and the battery pack unit (3).

2. The self-enabled battery power system of an electric marine vessel according to claim 1, characterized in that, The charger unit (1) of the self-powered battery pack is a bidirectional reversible charger for realizing bidirectional flow of electric energy, including converting alternating current power into direct current charging power to charge the battery pack unit (3); or inverting the direct current power of the battery pack unit (3) into alternating current power output.

3. The self-enabled battery power system of an electric marine vessel of claim 1, wherein, Multiple self-powered battery packs are electrically connected in series to form a self-powered battery cluster.

4. The self-enabled battery power system of an electric marine vessel of claim 1, wherein, Multiple self-powered battery clusters are electrically connected in parallel to form a self-powered battery domain (200).

5. The self-enabled battery power system of an electric marine vessel of claim 1, wherein, The power battery of the battery pack unit (3) is a liquid electrolyte battery, a condensed electrolyte battery, or a solid electrolyte battery.

6. The self-enabled battery power system of an electric marine vessel of claim 1, wherein, The power battery of the battery pack unit (3) is one of a cylindrical structure power battery, a cubic structure power battery, and a non-polar power battery.

7. The self-enabled battery power system of an electric marine vessel according to any one of claims 1 to 6, characterized in that, The self-powered battery power system of the electric ship further comprises a power transformer (100) having 1~T output windings at the secondary side; The secondary side output winding of the power transformer (100) is electrically connected to the self-powered battery pack, and the alternating current power output by the secondary side output winding is sent to the power input end of the charger unit (1).

8. The self-enabled battery power system of an electric marine vessel according to claim 7, characterized in that, The power transformer (100) is installed on the ship.

9. The self-enabled battery power system of an electric marine vessel of claim 7, wherein, The input voltage of the primary side of the power transformer (100) is in the voltage level range of 6kV~35kV. The output voltage of the secondary side of the power transformer (100) is in the voltage level range of 100V~2000V.

10. The self-enabled battery power system of an electric marine vessel of claim 1, wherein, The self-powered battery cluster consists of 1 self-powered battery pack.

11. The self-enabled battery power system of an electric marine vessel of claim 7, wherein, Each self-powered battery cluster consists of 1 self-powered battery pack. The power transformer (100) is installed on the shore.

12. An electrically powered watercraft, characterized by The electric ship is installed with the self-powered battery power system of any one of claims 1~11.

13. A self-enabled battery power system for an electric heavy-duty truck, characterized by, consists of 1~P self-powered battery domains (200); The self-powered battery domain (200) is installed in a vehicle battery cabin and consists of 1~N self-powered battery clusters, each of which consists of 1~M self-powered battery packs; The self-enabled power battery pack is composed of a charger unit (1), a controller (2) and a battery pack unit (3) as an integrated unit. The power input end of the charger unit (1) is electrically connected with the AC power source of the vehicle to convert AC power into charging DC power for charging the battery pack unit (3). The battery pack unit (3) is composed of one or more battery packs in parallel, each battery pack is composed of multiple power batteries in series, and each battery pack is internally provided with BMS battery management software to realize management and monitoring of the charging and discharging process of the power batteries in the battery pack. The controller (2) is connected to the charger unit (1) and the battery pack unit (3) to control the operation of the charger unit (1) and the battery pack unit (3).

14. The self-enabled battery power system of an electric heavy-duty truck according to claim 13, wherein, The charger unit (1) of the self-enabled power battery pack is a bidirectional reversible charger for realizing bidirectional flow of electric energy, including converting AC power into DC charging power for charging the battery pack unit (3), or converting DC power of the battery pack unit (3) into AC power output.

15. The self-enabled battery power system of an electric heavy-duty truck according to claim 13, wherein, Multiple self-enabled power battery packs are electrically connected in series to form a self-enabled power battery cluster.

16. The self-enabled battery power system of an electric heavy-duty truck according to claim 13, wherein, Multiple self-enabled power battery clusters are electrically connected in parallel to form a self-enabled power battery domain (200).

17. The self-enabled battery power system of an electric heavy-duty truck according to claim 13, wherein, The power batteries of the battery pack unit (3) are liquid electrolyte batteries, condensed electrolyte batteries or solid electrolyte batteries.

18. The self-enabled battery power system of an electric heavy-duty truck according to claim 13, wherein, The power batteries of the battery pack unit (3) are one of cylindrical structure power batteries, cubic structure power batteries and non-polar power batteries.

19. The self-enabled battery power system of an electric heavy-duty truck according to any one of claims 13-18, characterized in that, The input end of the charger unit (1) of each self-enabled battery pack is connected with the AC power source of the vehicle.

20. The self-enabled battery power system of an electric heavy-duty truck according to claim 19, wherein, Each self-enabled power battery cluster is composed of one self-enabled power battery pack.

21. An electric heavy-duty truck, characterized by The self-enabled battery power system of the electric heavy truck is installed with the self-enabled battery power system of any one of claims 13-20.

22. A self-enabled power battery pack composed of a charger unit (1), a controller (2) and a battery pack unit (3) as an integrated unit, characterized in that: The power input end of the charger unit (1) is connected with the input AC power to convert AC power into charging DC power for charging the battery pack unit (3); the charger unit (1) is internally provided with charging control software to control the charging process of the battery pack unit (3); The battery pack unit (3) is composed of one or more battery packs in parallel, and the battery pack is composed of multiple power batteries in series, and each battery pack is internally provided with BMS battery management software to realize management and monitoring of the charging and discharging process of the power batteries in the battery pack; The controller (2) is connected to the charger unit (1) and the battery pack unit (3) to control the operation of the charger unit (1) and the battery pack unit (3).

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