Marine electrical system with double electric outboard engines

Abstract

The utility model relates to a marine electrical system with double electric outboard engines, which comprises an electrical system hardware architecture and an electrical system network architecture, and is characterized in that the electrical system hardware architecture comprises a power battery pack, a power battery high-voltage power distribution cabinet, a marine controller, a first driving motor, a second driving motor and a control device for the driving motors; the electrical system network architecture comprises a first network system, a second network system, a third network system and a fourth network system which are independent of one another. According to the utility model, centralized scheduling and control of each electric ship system can be improved, later-stage intelligent expansion and new demand function expansion and upgrade are realized, and the flexibility of an electric ship electrical architecture is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric boat communication control, in particular to a marine electrical system of dual electric outboard motors. Background Art

[0002] The existing mechanical architecture of fuel-powered ships is not compatible with the development needs of pure electric ships. The electrification and intelligent development needs of various subsystems of pure electric ships are based on the application design of pure electric ships. In order to reduce the bulkiness of the system layout and reduce the interconnection between systems, a modular design of the structure is often adopted. The advantage of this model is that each functional module is independent of each other, and the data transmission between them is realized on the shipboard network bus architecture. The result is that the operation of each function is clear and there are very few connecting lines between them. Normally, a functional module only needs to be supplied with power and a communication link. The network-based communication link realizes the coordinated control of the navigation process under the overall control of the entire ship controller.

[0003] An important concept in ship design is that the entire device must have very high reliability and safety redundancy. Once a functional component loses control, it must be able to maintain the original controllable state of navigation, quickly judge and deal with the problem, and immediately resume operation after the problem is solved. If the ship loses control, it may collide and overturn on the surface of rivers, lakes, and other places depending on the direction of the water flow.

[0004] After searching, the patent: A communication control device for pure electric boats (CN201910292550.8) includes a main controller, an energy system, a drive system and an inverter system. The main controller is connected to the energy system, the drive system and the inverter system through three CAN bus networks, one of which uses a cable medium and the other two use an optical fiber medium. One of the three CAN bus networks is in working state and the other two are in standby state. However, the above-mentioned devices are not integrated enough, and there are also deficiencies in network construction, which affects subsequent upgrades and expansions.

[0005] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a new structure of a marine electrical system for dual electric outboard motors to make it more valuable for industrial use. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a marine electrical system for dual electric outboard motors.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A marine electrical system for dual electric outboard motors, including an electrical system hardware architecture and an electrical system network architecture.

[0009] The electrical system hardware architecture includes a power battery pack, a power battery high-voltage distribution cabinet, a marine controller, a first drive motor and a second drive motor. The power output end of the power battery pack is connected to the power input end of the power battery high-voltage distribution cabinet, the power input end of the first drive motor is connected to the power output end of the first drive motor controller, the power input end of the first drive motor controller is connected to the power output end of the power battery high-voltage distribution cabinet, the power input end of the second drive motor is connected to the power output end of the second drive motor controller, and the power input end of the second drive motor controller is connected to the power The power output end of the power battery high-voltage distribution cabinet is connected, the DC power output end of the power battery high-voltage distribution cabinet is connected to the DC power input end of the first low-voltage distribution box and the second low-voltage distribution box, the power output end of the first low-voltage distribution box is connected to the power input end of the cabin drainage pump, the first tilting motor, the first steering motor, the three-axis rod, the first drive system cooling water pump, the instrument, the power battery cooling water pump, the push rod, the steering wheel angle sensor and the marine controller, and the power output end of the second low-voltage distribution box is connected to the power input end of the second tilting motor, the second steering motor and the second drive system cooling water pump;

[0010] The electrical system network architecture includes a first network system, a second network system, a third network system and a fourth network system.

[0011] The first network system is composed of a marine controller and a first drive motor controller, a power inverter in a power battery high-voltage distribution cabinet, a first tilting motor, a first steering motor, a three-axis rod, a first drive system cooling water pump, an instrument, a push rod and a steering wheel angle sensor in communication with each other;

[0012] The second network system is composed of a marine controller, a second drive motor controller, a second tilting motor, a second steering motor and a second drive system cooling water pump in communication with each other;

[0013] The third network system is composed of a marine controller and a power battery cooling water pump communicating with each other;

[0014] The fourth network system consists of the BMS communication connection between the power battery pack and the power battery high-voltage distribution cabinet.

[0015] Preferably, in the marine electrical system of the dual electric outboard motors, the power battery high-voltage distribution cabinet is externally connected to a DC charging device.

[0016] Preferably, in the marine electrical system of the dual electric outboard motors, the DC voltage at the output end of the power battery high-voltage distribution cabinet includes DC12V and DC24V.

[0017] Preferably, in the marine electrical system for dual electric outboard motors, the marine controller is connected to the safety rope, the first angle sensor and the second angle sensor.

[0018] Preferably, in the marine electrical system of the dual electric outboard motor, the marine controller is connected to the battery cooling expansion kettle level gauge, the first drive motor expansion kettle level gauge and the second drive motor expansion kettle level gauge.

[0019] Preferably, in the marine electrical system of the dual electric outboard motors, the marine controller is externally connected to a human-machine interactive display.

[0020] By means of the above solution, the utility model has at least the following advantages:

[0021] The utility model can improve the centralized dispatching and control of various electrification systems of ships, and has the expansion and upgrading of later intelligent expansion and new demand functions, thereby improving the flexibility of the electrical architecture of electric ships.

[0022] The electrical architecture of the utility model is modularized to facilitate classification management and independent increase and decrease of configuration; a network architecture is built to network the data of various subsystems of the ship, which is convenient for upgrading and replacement, and provides a rich data foundation for subsequent intelligent ships; the dual-drive system is expanded based on the single-drive system, and the two are well compatible. In the event of failure of each system, the ship can rely on another system to continue sailing, improving the reliability of the ship's operation; compared with the power of a single drive, the dual-drive system can achieve more efficient energy transmission and operate the motor in a more efficient range.

[0023] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a principle block diagram of the utility model;

[0026] Figure 2 It is a network architecture diagram of the electrical system of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] 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 which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0029] Example

[0030] like Figure 1 and Figure 2 As shown, a marine electrical system for dual electric outboard motors includes an electrical system hardware architecture and an electrical system network architecture.

[0031] The electrical system hardware architecture includes a power battery pack 1, a power battery high-voltage distribution cabinet 2, a marine controller 21, a first drive motor 3 and a second drive motor 4. The power output end of the power battery pack 1 is connected to the power input end of the power battery high-voltage distribution cabinet 2, the power input end of the first drive motor 3 is connected to the power output end of the first drive motor controller 5, the power input end of the first drive motor controller 5 is connected to the power output end of the power battery high-voltage distribution cabinet 2, the power input end of the second drive motor 4 is connected to the power output end of the second drive motor controller 6, and the power input end of the second drive motor controller 6 is connected to the power battery high-voltage distribution cabinet. 2, the DC power output end of the power battery high-voltage distribution cabinet 2 is connected to the DC power input end of the first low-voltage distribution box 7 and the second low-voltage distribution box 8, the power output end of the first low-voltage distribution box 7 is connected to the cabin drainage pump 9, the first tilting motor 10, the first steering motor 11, the three-axis rod 12, the first drive system cooling water pump 13, the instrument 14, the power battery cooling water pump 15, the push rod 16, the steering wheel angle sensor 17 and the power input end of the marine controller 21, and the power output end of the second low-voltage distribution box 8 is connected to the second tilting motor 18, the second steering motor 19 and the second drive system cooling water pump 20.

[0032] The electrical system network architecture includes a first network system, a second network system, a third network system and a fourth network system.

[0033] The first network system is composed of a marine controller 21, a first drive motor controller 5, a power inverter in a power battery high-voltage distribution cabinet 2, a first tilting motor 10, a first steering motor 11, a three-axis rod 12, a first drive system cooling water pump 13, an instrument 14, a push rod 16 and a steering wheel angle sensor 17, which are connected in communication;

[0034] The second network system is composed of a marine controller 21 communicating with a second drive motor controller 6, a second tilting motor 18, a second steering motor 19 and a second drive system cooling water pump 20;

[0035] The third network system is composed of a marine controller 21 and a power battery cooling water pump 15 in communication connection;

[0036] The fourth network system is composed of the BMS communication connection between the power battery pack 1 and the power battery high-voltage distribution cabinet 2.

[0037] The power battery high voltage distribution cabinet 2 in the utility model is externally connected to a DC charging device 22 .

[0038] The DC voltage at the output end of the power battery high-voltage distribution cabinet 2 in the utility model includes DC12V and DC24V.

[0039] The marine controller 21 of the present invention is connected with a safety rope 23 , a first angle sensor 24 and a second angle sensor 25 .

[0040] The marine controller 21 of the utility model is connected with the battery cooling expansion kettle level gauge 26 , the first drive motor expansion kettle level gauge 27 and the second drive motor expansion kettle level gauge 28 .

[0041] The marine controller 21 of the utility model is externally connected to a human-machine interactive display.

[0042] The utility model comprises an electrical system hardware architecture and an electrical system network architecture.

[0043] The hardware architecture divides the system into a high-voltage system and a low-voltage system. The high-voltage system uses a high-voltage distribution cabinet as a link to connect the low-voltage system. The high-voltage system mainly includes a power battery pack and cooling system, a dual-motor drive system, and a high-voltage distribution cabinet. The low-voltage system is divided into a low-voltage distribution unit, a low-voltage execution unit, and a low-voltage data acquisition unit. The network control and line control backup redundancy of the whole ship controller serve as the basis of the electrical hardware architecture of the whole ship.

[0044] like Figure 2As shown, the network architecture uses the ship controller (BCU) as the central gateway, integrates the ship network according to functional requirements and implements domain isolation. The ship network is divided into four network systems. The first network system is composed of a ship controller 21 communicating with the first drive motor controller 5, the power inverter device in the power battery high-voltage distribution cabinet 2, the first tilting motor 10, the first steering motor 11, the three-axis rod 12, the first drive system cooling water pump 13, the instrument 14, the push rod 16 and the steering wheel angle sensor 17;

[0045] The second network system is composed of a marine controller 21 communicating with a second drive motor controller 6, a second tilting motor 18, a second steering motor 19 and a second drive system cooling water pump 20;

[0046] The third network system is composed of a marine controller 21 and a power battery cooling water pump 15 in communication connection;

[0047] The fourth network system consists of the BMS communication connection between the power battery pack 1 and the power battery high-voltage distribution cabinet 2. Space is reserved to provide network access capabilities for subsequent intelligent navigation. The data interaction control of each network segment function is uniformly implemented by the whole ship controller for signal control and message data definition. This distributed architecture is conducive to the independent configuration of network segment data and free increase and decrease. It is also convenient for the basic data of the later expansion of intelligent ship needs to be flexibly configured.

[0048] The electrical architecture of the whole ship uses the whole ship controller as the central control, and controls the start-up and shutdown confirmation device of the whole ship through the start switch. The start switch 29 signal is transmitted to the whole ship controller, and the whole ship controller sends a start signal to the power battery system and the motor drive system, and synchronously starts the low-voltage distribution device to provide power to each system. After the power battery system and the motor drive system complete the system self-check and confirm that there is no fault and feedback to the whole ship controller, the whole ship controller controls the high-voltage distribution device to complete the pre-charging of the motor drive system and the insulation monitoring of the battery, and enters the driving condition mode according to the push rod gear position, tilting angle, and throttle opening information. When receiving the angle signal of the steering wheel, the steering system of the whole ship issues a steering command to realize the steering scheduling of the ship. After obtaining the low-voltage distribution power supply, the instrument displays the information of the throttle, gear position, steering, battery, and motor fed back by the whole ship controller for human-machine interaction.

[0049] The safety rope, battery, and each expansion tank level gauge are protective devices in the ship's electrical system. When an alarm occurs, the entire ship controller will enter protection mode.

[0050] 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, further definition and explanation thereof is not required in subsequent drawings.

[0051] In the description of this application, it should be noted that the terms "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0052] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or vertical, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0053] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A marine electrical system for dual electric outboard motors, characterized in that: Including electrical system hardware architecture and electrical system network architecture, The electrical system hardware architecture comprises a power battery pack (1), a power battery high-voltage distribution cabinet (2), a ship controller (21), a first drive motor (3) and a second drive motor (4), wherein the power output end of the power battery pack (1) is connected to the power input end of the power battery high-voltage distribution cabinet (2), the power input end of the first drive motor (3) is connected to the power output end of the first drive motor controller (5), the power input end of the first drive motor controller (5) is connected to the power output end of the power battery high-voltage distribution cabinet (2), the power input end of the second drive motor (4) is connected to the power output end of the second drive motor controller (6), the power input end of the second drive motor controller (6) is connected to the power output end of the power battery high-voltage distribution cabinet (2), and the power input end of the second drive motor controller (6) is connected to the power output end of the power battery high-voltage distribution cabinet (2). The power output end of the power battery high-voltage distribution cabinet (2) is connected to the DC power input end of the first low-voltage distribution box (7) and the second low-voltage distribution box (8); the power output end of the first low-voltage distribution box (7) is connected to the power input end of the cabin drainage pump (9), the first tilting motor (10), the first steering motor (11), the three-axis rod (12), the first drive system cooling water pump (13), the instrument (14), the power battery cooling water pump (15), the push rod (16), the steering wheel angle sensor (17) and the ship controller (21); the power output end of the second low-voltage distribution box (8) is connected to the power input end of the second tilting motor (18), the second steering motor (19) and the second drive system cooling water pump (20); The electrical system network architecture includes a first network system, a second network system, a third network system and a fourth network system. The first network system is composed of a marine controller (21) and a first drive motor controller (5), a power inverter device in a power battery high-voltage distribution cabinet (2), a first tilting motor (10), a first steering motor (11), a three-axis rod (12), a first drive system cooling water pump (13), an instrument (14), a push rod (16) and a steering wheel angle sensor (17) in communication with each other; The second network system is composed of a ship controller (21) and a second drive motor controller (6), a second tilting motor (18), a second steering motor (19) and a second drive system cooling water pump (20) in communication with each other; The third network system is composed of a marine controller (21) and a power battery cooling water pump (15) in communication connection; The fourth network system is composed of a BMS communication connection between a power battery pack (1) and a power battery high-voltage distribution cabinet (2).

2. A marine electrical system for dual electric outboard motors according to claim 1, characterized in that: The power battery high-voltage distribution cabinet (2) is externally connected to a direct current charging device (22).

3. A marine electrical system for dual electric outboard motors according to claim 1, characterized in that: The DC voltage at the output end of the power battery high-voltage distribution cabinet (2) includes DC12V and DC24V.

4. A marine electrical system for dual electric outboard motors according to claim 1, characterized in that: The ship controller (21) is connected to a safety rope (23), a first angle sensor (24) and a second angle sensor (25).

5. A marine electrical system for dual electric outboard motors according to claim 1, characterized in that: The marine controller (21) is connected to a battery cooling expansion kettle level gauge (26), a first drive motor expansion kettle level gauge (27) and a second drive motor expansion kettle level gauge (28).

6. A marine electrical system for dual electric outboard motors according to claim 1, characterized in that: The marine controller (21) is externally connected to a human-machine interactive display.

Images