Marine battery system

Abstract

The invention relates to a marine battery system. The marine battery system comprises a set of quick-plug lithium ion battery pack, a set of high-voltage confluence cabinet and a set of battery energy management system, one set of high-voltage confluence cabinet is laid, mounted and fixed at the bottom of the battery cabin, and one set of quick-insertion type lithium ion battery pack is formed by stacking a plurality of layers of quick-insertion type lithium ion battery packs and is directly and quickly inserted and mounted on the high-voltage direct-current cabinet, so that the lithium ion battery packs are convenient to mount and compact in space, and wiring is not needed outside the battery packs. Besides the conventional battery BMS function, the battery energy management system also comprises multi-strategy mode battery grouping control. The marine battery system is convenient to install, free of maintenance space design, large in electric quantity configuration capacity in unit volume and flexible in battery pack grouping, and the installation, maintenance, unpacking and transportation time of the marine battery system is shortened.

Description

Technical Field

[0001] The invention relates to a battery power technology, in particular to a marine battery system. Background Art

[0002] With the advancement of battery technology and the decline in prices, battery power has been widely proposed as a representative of clean power systems. It can further reduce operating costs while meeting the requirements of "zero emissions" and "low noise", and will be the preferred power source for small and medium-sized inland vessels in the future.

[0003] At present, pure battery-powered ships mainly use fixed battery packs installed in the ship's battery compartment. This type of shipyard is difficult to construct and install. Battery racks need to be installed in the battery compartment, and the battery packs need to be manually installed and wired. The construction is difficult and the cycle is long. At the same time, considering the later maintenance of the battery system, a certain maintenance channel is required for each battery pack, which limits the battery capacity in a single battery compartment.

[0004] Currently, there are few new and convenient installation and wiring methods for fixed battery pack installations. Summary of the invention

[0005] In view of the fact that the battery compartments of current pure battery-powered ships are equipped with fixed battery packs, manual installation and wiring are required, which makes the construction difficult and takes a long time. At the same time, considering the later maintenance of the battery system, a certain maintenance channel needs to be reserved for each battery pack, resulting in the problem that the battery capacity in a single battery compartment is limited. The present invention proposes a marine battery system, which effectively solves the problems of difficult installation and construction of the battery system, limited battery capacity per unit volume, and difficult maintenance of the battery system by configuring a set of quick-plug lithium-ion battery packs, a set of high-voltage junction cabinets and a set of battery energy management systems.

[0006] The technical solution of the present invention is: a marine battery system, including a set of quick-plug lithium-ion battery packs, a set of high-voltage combiner cabinets and a set of battery energy management system; a set of high-voltage combiner cabinets are installed and fixed at the bottom of the battery compartment, a set of quick-plug lithium-ion battery packs are stacked by multiple layers of quick-plug lithium-ion battery packs, and a set of quick-plug lithium-ion battery packs are directly quick-plugged and installed on the high-voltage DC cabinet, so that the lithium-ion battery pack is easy to install, the space is compact, and no wiring is required outside the battery pack.

[0007] Furthermore, the quick-plug lithium-ion battery pack includes a plurality of quick-plug lithium-ion battery packs, and the quick-plug lithium-ion battery packs include battery cells, quick plugs and a plurality of DC contactors.

[0008] Furthermore, the quick-plug lithium-ion battery pack also includes two positive poles, two negative poles and four cable connection channels, and the external connection terminals are all in the form of quick plugs, wherein a plurality of battery cells are connected in series, the positive pole of the battery cell is connected to the two positive poles of the lithium-ion battery pack through a DC contactor; the negative pole of the battery cell is connected to the two negative poles of the lithium-ion battery pack through a DC contactor; the positive pole of the battery cell is connected to the cable connection channel of the lithium-ion battery pack through a DC contactor.

[0009] Furthermore, the control signal line of the DC contactor and the alarm signal line of the lithium-ion battery pack are connected together to the battery system energy management system.

[0010] Furthermore, after the quick-plug lithium-ion battery packs are installed in multiple layers, the DC contactor opening and closing selection is controlled through the battery system BMS multi-strategy mode battery grouping to combine into a battery cluster that meets the requirements of the ship system.

[0011] Furthermore, the high-voltage junction box includes high-voltage DC copper busbars, quick plugs and several DC contactors; the DC contactor opening and closing selection is controlled through the battery system BMS multi-strategy mode battery grouping, and combined into a battery cluster that meets the requirements of the ship system.

[0012] Furthermore, in addition to the monitoring, management and protection of conventional battery management systems, the battery energy management system adds multi-strategy mode battery grouping control, quick-plug lithium-ion battery packs and high-voltage combiner cabinet DC contactor opening and closing options, combining them into a battery system that meets the requirements of ship systems.

[0013] The beneficial effects of the present invention are as follows: the ship pure battery power system of the present invention is provided with a set of quick-plug lithium-ion battery packs, a set of high-voltage junction cabinets and a set of battery energy management system; a set of quick-plug lithium-ion battery packs includes multiple quick-plug lithium-ion battery packs, which include battery cells, quick plugs and several DC contactors; the high-voltage junction cabinet includes high-voltage DC copper busbars and several DC contactors. In addition to the conventional battery BMS functions, the battery energy management system also contains multi-strategy mode battery grouping control. It has the advantages of convenient installation of marine battery system, maintenance-free space design, large power configuration capacity per unit volume, flexible battery grouping, and reduces the installation, maintenance, unpacking and transportation time of ship battery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The internal principle diagram of the marine quick-plug lithium-ion battery pack of the present invention (standard pack);

[0015] Figure 2 The internal principle diagram of the marine quick-plug lithium-ion battery pack of the present invention is shown in FIG. 1 ;

[0016] Figure 3 The internal principle diagram of the marine quick-plug lithium-ion battery pack of the present invention is shown (Package 2);

[0017] Figure 4 The internal principle diagram of the marine quick-plug lithium-ion battery pack of the present invention is shown (Package 3);

[0018] Figure 5 The internal principle diagram of the marine quick-plug lithium-ion battery pack of the present invention is shown (Package 4);

[0019] Figure 6 This is a wiring diagram of the marine battery system of the present invention;

[0020] Figure 7 This is a schematic diagram of the installation of the marine battery system of the present invention. DETAILED DESCRIPTION

[0021] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0022] like Figure 1 The following is a schematic diagram of the internal principle of a marine quick-plug lithium-ion battery pack (standard pack). Figures 2 to 5 The figure shows the internal principle of the marine quick-plug lithium-ion battery pack (Pack 1 to Pack 4, specifically corresponding to the battery pack forms of the battery system wiring diagram). The figure shows that the battery pack is equipped with several battery cells in series, in which the positive electrode of the cell is connected to the two positive electrodes of the lithium-ion battery pack through a DC contactor; the negative electrode of the cell is connected to the two negative electrodes of the lithium-ion battery pack through a DC contactor; the positive electrode of the cell is connected to the cable wiring channel of the lithium-ion battery pack through a DC contactor; the above external wiring terminals are all in the form of quick plugs, which is convenient for direct installation of the lithium-ion battery pack and eliminates manual wiring. In addition, the control of the above DC contactor and the conventional alarm signal line of the lithium-ion battery pack are sent to the battery system energy management system together.

[0023] like Figure 6The figure shows a wiring diagram of a marine battery system. After multiple layers of marine quick-plug lithium-ion battery packs are installed, a row of battery groups is formed. When the multiple layers are stacked, no battery rack is installed separately, and the lithium-ion battery pack is supported only by the structural strength of the lithium-ion battery pack. The quick-plug lithium-ion battery pack is directly installed on the high-voltage junction cabinet through a quick plug. The high-voltage junction cabinet contains a number of DC contactors, and the DC contactor control signal is also sent to the battery energy management system. Through the battery system BMS multi-strategy mode battery grouping control DC contactor opening and closing selection, a battery cluster that meets the design requirements of the ship system is combined. The present invention designs an energy management method for a battery system. In addition to the monitoring, management and protection of a conventional battery management system, it mainly adds a multi-strategy mode battery grouping control quick-plug lithium-ion battery pack and a high-voltage junction cabinet DC contactor opening and closing selection to form a battery system that meets the design requirements of the ship system.

[0024] like Figure 7 The figure shows the installation diagram of the marine battery system. This type of battery system is installed in the battery compartment. When designing and constructing the battery compartment, the high-voltage junction cabinet of the battery system is pre-arranged on the hull flower steel plate grid. At the same time, the guide rails of the battery pack automatic installation robot are set in front and behind the high-voltage junction cabinet. After the installation of the above equipment is completed, several marine quick-plug lithium-ion battery packs are assembled by the battery pack automatic installation robot. After the assembly is completed, the quick-plug lithium-ion battery pack and the high-voltage junction cabinet are grouped and controlled by the battery energy management system. Finally, the battery system of the battery compartment is installed, and the wiring and parameter setting are completed. In addition, when a marine quick-plug lithium-ion battery pack fails, it is automatically disassembled and replaced by the battery pack automatic installation robot. The above schematic diagram and description can show that the marine battery system is easy to install, maintenance-free space design, large power configuration capacity per unit volume, flexible battery grouping, and reduces the installation, maintenance, unpacking and transportation time of the ship battery system.

[0025] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A marine battery system, Features: It includes 1 set of quick-plug lithium-ion battery pack, 1 set of high-voltage combiner cabinet and 1 set of battery energy management system; 1 set of high-voltage combiner cabinet is installed and fixed at the bottom of the battery compartment, 1 set of quick-plug lithium-ion battery pack is composed of multiple layers of quick-plug lithium-ion battery packs stacked together, and 1 set of quick-plug lithium-ion battery pack is directly quick-plugged and installed on the high-voltage DC cabinet, so that the lithium-ion battery pack is easy to install, the space is compact, and no wiring is required on the outside of the battery pack.

2. The marine battery system according to claim 1, Features: A set of quick-plug lithium-ion battery packs includes multiple quick-plug lithium-ion battery packs, which include battery cells, quick plugs and a number of DC contactors.

3. The marine battery system according to claim 2, Features: The quick-plug lithium-ion battery pack also includes two positive poles, two negative poles and four cable connection channels. The external connection terminals are all in the form of quick plugs. Among them, multiple battery cells are connected in series, and the positive pole of the battery cell is connected to the two positive poles of the lithium-ion battery pack through a DC contactor; the negative pole of the battery cell is connected to the two negative poles of the lithium-ion battery pack through a DC contactor; the positive pole of the battery cell is connected to the cable connection channel of the lithium-ion battery pack through a DC contactor.

4. The marine battery system according to claim 2, Features: The control signal line of the DC contactor and the alarm signal line of the lithium-ion battery pack are connected together to the battery system energy management system.

5. The marine battery system according to claim 2, Features: After the quick-plug lithium-ion battery packs are installed in multiple layers, the battery system BMS multi-strategy mode battery grouping controls the DC contactor opening and closing selection to form a battery cluster that meets the requirements of the ship system.

6. The marine battery system according to claim 1, Features: The high-voltage combiner cabinet contains high-voltage DC copper busbars, quick plugs and several DC contactors; the DC contactor opening and closing selection is controlled through the battery system BMS multi-strategy mode battery grouping to combine into a battery cluster that meets the requirements of the ship system.

7. The marine battery system according to any one of claims 1 to 6, Features: In addition to the monitoring, management and protection of conventional battery management systems, the battery energy management system adds multi-strategy mode battery grouping control, quick-plug lithium-ion battery packs and high-voltage combiner cabinet DC contactor opening and closing options to form a battery system that meets the requirements of ship systems.

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