Marine busbar cabinet

Abstract

A marine busbar cabinet, comprising a low-voltage control system (200), a high-voltage busbar system (300), a cabinet body (100) and an insulated isolation structure (400). The high-voltage busbar system (300) comprises at least two groups of battery clusters, the at least two groups of battery clusters satisfying at least one of mutual series connection and mutual parallel connection. The low-voltage control system (200) is electrically connected to the at least two groups of battery clusters. The cabinet body (100) is provided with an accommodating cavity (111) for accommodating the low-voltage control system (200) and the high-voltage busbar system (300). The insulated isolation structure (400) is arranged in the accommodating cavity (111), and can divide the accommodating cavity (111) into a low-voltage chamber (1) and a high-voltage chamber (2) insulated from each other. The low-voltage control system (200) is arranged in the low-voltage chamber (1), and the high-voltage busbar system (300) is arranged in the high-voltage chamber (2).

Description

Marine combiner cabinet

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 19, 2024, application number 202422017930.X. The entire contents of the above application are incorporated by reference into this application.

[0002] Technical Field

[0003] The present application relates to the field of ship power technology, and in particular to a ship combiner cabinet.

[0004] Background Art

[0005] New energy vessels have attracted widespread attention due to their low energy consumption, zero pollution, and low cost. The power system is the core of the new energy vessel propulsion system. The power system consists of a high-voltage busbar system and a low-voltage control system. The high-voltage busbar system is configured to integrate power from the battery cluster, while the low-voltage control system is configured to control the start and stop of the high-voltage busbar system.

[0006] Technical issues

[0007] In related technologies, the high-voltage busbar system consists of multiple independently installed high-voltage boxes, each housing a battery cluster, and the low-voltage control system consists of a low-voltage box. These multiple high-voltage boxes are independent of the low-voltage box and connected via wiring harnesses. These multiple independently installed high-voltage and low-voltage boxes occupy excessive space, but the limited space within a ship's cabin cannot accommodate these independently installed boxes, failing to meet actual installation requirements.

[0008] Technical Solutions

[0009] In a first aspect, the present application provides a marine combiner cabinet, comprising:

[0010] Low voltage control system;

[0011] A high-voltage bus system comprising at least two battery clusters, wherein the at least two battery clusters are connected in series or in parallel with each other, and the low-voltage control system is electrically connected to the at least two battery clusters;

[0012] A cabinet having a receiving cavity for receiving the low-voltage control system and the high-voltage confluence system; and

[0013] An insulating isolation structure is arranged in the accommodating cavity, and the insulating isolation structure can split the accommodating cavity into a low-pressure chamber and a high-pressure chamber that are insulated from each other. The low-pressure control system is arranged in the low-pressure chamber, and the high-pressure convergence system is arranged in the high-pressure chamber.

[0014] Beneficial effects

[0015] The marine junction cabinet provided in this application provides a chamber for accommodating a low-voltage control system and a high-voltage junction system within the cabinet body, uses an insulating isolation structure to split the chamber into a low-voltage chamber and a high-voltage chamber that are insulated from each other, and sets the low-voltage control system in the low-voltage chamber and the high-voltage junction system in the high-voltage chamber, thereby realizing the integrated accommodation of the low-voltage control system and the high-voltage junction system. This not only ensures safety in use, but also has a compact structure, effectively saves installation space, and meets actual installation requirements. In addition, by ensuring that the high-voltage junction system includes at least two groups of battery clusters connected in series and / or in parallel, the high-voltage junction system can output stable and compliant power to meet the actual power needs of the ship.

[0016] BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic structural diagram of a marine combiner cabinet provided in an embodiment of the present application;

[0018] FIG2 is a front view of a marine combiner cabinet provided in an embodiment of the present application;

[0019] FIG3 is an exploded view of a marine combiner cabinet provided in an embodiment of the present application;

[0020] FIG4 is a structural diagram of a marine combiner cabinet with a hidden door and a partial main body provided by an embodiment of the present application;

[0021] FIG5 is a cross-sectional schematic diagram of a marine combiner cabinet provided in an embodiment of the present application;

[0022] FIG6 is a partial enlarged schematic diagram of point A in FIG5 .

[0023] In the picture:

[0024] 1. Low-pressure chamber; 2. High-pressure chamber;

[0025] 100, cabinet; 110, main body; 111, accommodating chamber; 112, air inlet assembly; 113, air outlet assembly; 114, connecting ring; 120, door; 121, handle; 122, indicator light; 123, touch screen; 124, emergency stop button; 130, cable arrangement structure; 131, first fastening member; 1311, fastening protrusion; 132, second fastening member; 1321, fastening groove; 133, cable trough; 140, charging connector; 150, discharge connector;

[0026] 200, low voltage control system; 210, control switch; 220, battery management system; 230, switching power supply;

[0027] 300, high-voltage busbar system; 310, fuse; 320, relay;

[0028] 400, insulation isolation structure; 410, first bending portion; 420, second bending portion.

[0029] Modes for Carrying Out the Invention

[0030] In new energy vessels, the power system is the core of the propulsion system. The power system consists of a high-voltage busbar system and a low-voltage control system. The high-voltage busbar system consists of multiple independently installed high-voltage boxes, each housing a battery cluster, and the low-voltage control system consists of a low-voltage box. These multiple high-voltage boxes are independent of the low-voltage box and are connected via wiring harnesses, which in turn connect them to the low-voltage boxes. This multiple, independently installed high-voltage and low-voltage boxes takes up too much space, but the limited space within a vessel's cabin cannot accommodate these independently installed boxes, making them unsuitable for practical installation requirements.

[0031] As shown in Figures 1 to 4, this embodiment provides a marine combiner cabinet. The marine combiner cabinet includes a cabinet body 100, a low-voltage control system 200, a high-voltage combiner system 300, and an insulating isolation structure 400. The high-voltage combiner system 300 includes at least two battery clusters connected in series and / or in parallel, and the low-voltage control system 200 is electrically connected to the battery clusters. The cabinet body 100 has a housing 111 for accommodating the low-voltage control system 200 and the high-voltage combiner system 300. The insulating isolation structure 400 is disposed in the housing 111 and can separate the housing 111 into a low-voltage chamber 1 and a high-voltage chamber 2, which are insulated from each other. The low-voltage control system 200 is disposed in the low-voltage chamber 1, and the high-voltage combiner system 300 is disposed in the high-voltage chamber 2.

[0032] The shipboard junction cabinet is provided with a housing 111 for accommodating the low-voltage control system 200 and the high-voltage junction system 300 in the cabinet body 100, and the housing 111 is divided into a low-voltage chamber 1 and a high-voltage chamber 2 that are insulated from each other using an insulating isolation structure 400. The low-voltage control system 200 is arranged in the low-voltage chamber 1, and the high-voltage junction system 300 is arranged in the high-voltage chamber 2, thereby realizing the integrated accommodation of the low-voltage control system 200 and the high-voltage junction system 300. This not only ensures safety in use, but also has a compact structure, effectively saves installation space, and meets actual installation requirements. In addition, by ensuring that the high-voltage junction system 300 includes at least two groups of battery clusters connected in series and / or in parallel, the high-voltage junction system 300 can output stable and compliant power to meet the actual power needs of the ship.

[0033] For example, in this embodiment, the high-voltage bus system 300 includes five battery clusters connected in parallel, the maximum current of each battery cluster does not exceed 140A, and the low-voltage control system 200 can independently control the charging and discharging of each battery cluster. In other embodiments, the number of battery clusters in the high-voltage bus system 300 and the maximum current value of each battery cluster can be adjusted according to actual needs while ensuring safety. It is only necessary to ensure that the low-voltage control system 200 can independently control the charging and discharging of each battery cluster. This is not limited in this embodiment. It should be noted that in this embodiment, the length of each battery cluster is 639mm, the width is 381mm, and the height is 1470mm. In other embodiments, the specifications of the battery cluster can also be adjusted according to actual power demand, and the specifications of the cabinet 100 can be adaptively adjusted so that the cabinet 100 can integrate the low-voltage control system 200 and the high-voltage bus system 300.

[0034] For example, the busbars within the high-voltage busbar system 300 are copper bars with a thickness of 6 mm, a length and width of 50 mm, and a current capacity of 800 A to ensure safe busbar integration of the battery cluster. Furthermore, the electrical clearance between the copper bars within the high-voltage busbar system 300 and any external conductive parts is no less than 30 mm to enhance the safety of the marine busbar cabinet.

[0035] As shown in FIG3 , in this embodiment, the low-voltage control system 200 includes a control switch 210, a battery management system 220, and a switching power supply 230. The switching power supply 230 is configured to switch the output voltage type of the battery cluster. The battery management system 220 and the switching power supply 230 are respectively arranged on opposite sides of the cabinet 100. The battery management system 220 is connected to a wiring harness for each battery cluster. The battery management system 220 can detect the voltage and current information of each battery cluster in real time. Each battery cluster is connected to a low-voltage communication wiring harness via the control switch 210. The control switch 210 is configured to control the conduction and isolation between the battery cluster and the low-voltage communication wiring harness. It should be noted that in this embodiment, the switching power supply 230 includes a DC / DC power supply and an AC / DC power supply. The structures and operating principles of the DC / DC power supply, the AC / DC power supply, the control switch 210, and the battery management system 220 are all related art and will not be further described here.

[0036] In this embodiment, the high-voltage bus system 300 also includes a fuse 310 and a relay 320. The relay 320 and the fuse 310 are both connected to the battery cluster through a wiring harness. The control switch 210 is connected to the relay 320 through a low-voltage communication wiring harness. The relay 320 is provided to enable the low-voltage control system 200 to control the high-voltage bus system 300. The fuse 310 is provided to cut off the output of the high-voltage bus system 300 to ensure safe use.

[0037] As an optional solution, the cabinet 100 includes a main body 110 and a door 120, wherein the main body 110 has a accommodating cavity 111, which has an opening. The insulating isolation structure 400 can enter the accommodating cavity 111 along the opening, and the door 120 is connected to the main body 110 and blocks the opening. By configuring the cabinet 100 as a main body 110 having an accommodating cavity 111 and providing an opening in the accommodating cavity 111, the insulating isolation structure 400 can be easily disassembled and assembled. The door 120 is connected to the main body 110 so that the door 120 blocks the opening, thereby improving the protection of the low-pressure control system 200 in the low-pressure chamber 1 and the high-pressure confluence system 300 in the high-pressure chamber 2. It should be noted that in this embodiment, the door 120 is pivotally connected to the main body 110 and is provided with a handle 121 to facilitate driving the door 120 to rotate relative to the main body 110.

[0038] To enhance the stability of the main body 110, a connecting ring 114 is provided on the main body 110. This connecting ring 114 can be connected to the ship's cabin via a rope to prevent the main body 110 from tipping over due to turbulence generated during the ship's travels. It should be noted that in this embodiment, four connecting rings 114 are provided at intervals around the upper end of the main body 110, each of which is suspended and secured to the cabin via a rope. In other embodiments, the number of connecting rings 114 can be adjusted based on actual needs, and this embodiment does not limit this.

[0039] The structure of the insulating isolation structure 400 is explained in conjunction with Figure 4. The insulating isolation structure 400 includes a first bending portion 410 and a second bending portion 420 connected to each other, wherein the extension direction of the first bending portion 410 is perpendicular to the plane where the opening is located, and the extension direction of the second bending portion 420 is parallel to the plane where the opening is located. The second bending portion 420 is arranged at one end of the accommodating chamber 111 close to the opening, and the first bending portion 410 and part of the cavity wall of the accommodating chamber 111 form a low-pressure chamber 1, and the low-pressure chamber 1 is directly connected to the opening. The second bending portion 420, the first bending portion 410 and part of the cavity wall of the accommodating chamber 111 form a high-pressure chamber 2, and the high-pressure chamber 2 is not directly connected to the opening.

[0040] By configuring the insulating isolation structure 400 to be interconnected with a first bend 410 and a second bend 420, with the first bend 410 extending perpendicular to the plane of the opening, the accommodating chamber 111 can be divided into two areas that are directly opposite and in communication with the opening. By configuring the second bend 420 to extend parallel to the plane of the opening and configuring the second bend 420 to be located at one end near the opening, the second bend 420 can block the opening of one of the two areas separated by the first bend 410. The blocked opening area serves as the high-voltage chamber 2, thereby improving the protection of the battery cluster within the high-voltage busbar system 300. The unblocked opening area serves as the low-voltage chamber 1, thereby facilitating subsequent debugging by staff. When debugging the low-voltage control system 200, since the low-voltage chamber 1 is directly opposite and in communication with the opening, debugging of the low-voltage control system 200 can be performed by simply opening the door 120.

[0041] It should be noted that in this embodiment, both the first bend portion 410 and the second bend portion 420 are made of acrylic. Acrylic not only has excellent electrical insulation properties, high surface hardness and gloss, and good high-temperature performance, but also has good processability, allowing for both thermoforming and machining. In other embodiments, the first bend portion 410 and the second bend portion 420 may also be made of other insulating materials, and this embodiment is not limiting.

[0042] Furthermore, in this embodiment, the opening is located on the side of the accommodating chamber 111. The accommodating chamber 111 is divided by the insulating isolation structure 400 into a low-pressure chamber 1 and a high-pressure chamber 2, which are stacked one above the other. The high-pressure chamber 2 is located below the low-pressure chamber 1, so that the high-pressure chamber 2 can accommodate the battery cluster within the high-voltage bus system 300. In other embodiments, the low-pressure chamber 1 and the high-pressure chamber 2 can also be arranged side by side along a horizontal plane, which is not limited in this embodiment.

[0043] In an optional embodiment, the main body 110 is provided with an air inlet assembly 112 and an air outlet assembly 113. The air inlet assembly 112 can drive external air into the accommodating chamber 111, and the air outlet assembly 113 can drive the air within the accommodating chamber 111 to the outside. By providing the air inlet assembly 112 and the air outlet assembly 113 on the main body 110, a circulation flow between external air and the air within the cabinet 100 can be achieved, thereby improving the heat dissipation effect of the low-pressure control system 200 and the high-pressure convergence system 300 within the cabinet 100, thereby improving the protection of the low-pressure control system 200 and the high-pressure convergence system 300. It should be noted that in other embodiments, the air inlet assembly 112 is provided at the lower end of the main body 110, and the air outlet assembly 113 is provided at the upper end of the main body 110 to improve the circulation effect of the air within the main body 110. In other embodiments, only the air inlet assembly 112 or only the air outlet assembly 113 can be provided on the main body 110, and this embodiment is not limited thereto.

[0044] Exemplarily, the air intake assembly 112 includes a filter window and a fan, wherein an air inlet is provided on the main body 110, the filter window is sealed at the air inlet, and the fan is disposed at one end of the filter window near the accommodating chamber 111. The fan is configured to drive external air along the filter window into the accommodating chamber 111. By providing an air inlet on the main body 110, using the filter window to seal the air inlet, and disposing the fan at one end of the filter window near the accommodating chamber 111, the fan drives external air along the filter window into the accommodating chamber 111. This not only effectively drives external air, but also filters the air entering the accommodating chamber 111, preventing debris from entering the accommodating chamber 111 through the air inlet, thereby improving protection for the low-pressure control system 200 and the high-pressure confluence system 300. It should be noted that in this embodiment, the filter window is a louver. In other embodiments, the filter window may also be a tensioning frame with a filter screen stretched across it, which is not a limitation in this embodiment.

[0045] In addition, the structure of the air outlet assembly 113 is the same as that of the air inlet assembly 112 , and will not be described again here to ensure brevity.

[0046] To facilitate monitoring of the shipboard combiner cabinet's operating status, an indicator light 122 is provided on the door 120 and connected to the wiring harness of the low-voltage control system 200. By providing the indicator light 122 on the door 120 and connected to the wiring harness of the low-voltage control system 200, personnel can observe the indicator light to determine the shipboard combiner cabinet's operating status, providing effective indication. Furthermore, the indicator light 122 can switch between an off state, a constant on state, and a flashing state. This switching of the indicator light 122 between the off state, a constant on state, and a flashing state improves the indication effect for personnel. It should be noted that the indicator lights 122 include, but are not limited to, an operation indicator light, a fault indicator light, an alarm indicator light, a low SOC (State of Charge) indicator light, an over-temperature indicator light, a power failure indicator light, a start / stop indicator light, and a reset indicator light. It is understood that in other embodiments, the indicator light's indication information can be adjusted based on functional requirements, and this embodiment does not limit this.

[0047] In addition, a touch screen 123 is provided on the door body 120. The touch screen 123 is connected to the wiring harness of the low-voltage control system 200, and the touch screen 123 can control the low-voltage control system 200. By providing the touch screen 123 on the door body 120 and connecting the touch screen 123 to the wiring harness of the low-voltage control system 200, the touch screen 123 can control the low-voltage control system 200. When the output power of the marine junction box needs to be adjusted, it can be achieved by operating the touch screen 123, without opening the door body 120 and adjusting the low-voltage control system 200, simplifying the adjustment difficulty and improving the adjustment efficiency. It should be noted that the structure and working principle of the touch screen 123 are related technologies and will not be described in detail here.

[0048] To enhance the safety of the marine combiner cabinet, an emergency stop button 124 is provided on the door 120. This button is connected to the wiring harness of the high-voltage combiner system 300 and can independently control the activation and deactivation of the high-voltage combiner system 300. By providing the emergency stop button 124 on the door 120 and connecting it to the wiring harness of the high-voltage combiner system 300, the emergency stop button 124 can independently control the activation and deactivation of the high-voltage combiner system 300. In the event of an accident with the marine combiner cabinet, the emergency stop button 124 can be directly pressed to stop the high-voltage combiner system 300, thereby ensuring the safety of the marine combiner cabinet.

[0049] As an optional solution, as shown in Figures 3, 5, and 6, the cabinet 100 further includes a wiring arrangement 130, wherein the wiring arrangement 130 is disposed in the accommodating cavity 111 and is configured to accommodate the wiring harnesses of the low-voltage control system 200 and the high-voltage bus system 300. Providing the wiring arrangement 130 to accommodate the wiring harnesses of the low-voltage control system 200 and the high-voltage bus system 300 improves the storage efficiency of the wiring harnesses of the low-voltage control system 200 and the high-voltage bus system 300, thereby improving the neatness of the accommodating cavity 111 and facilitating subsequent inspection and maintenance.

[0050] Exemplarily, as shown in Figure 6, the cable arrangement structure 130 includes a first fastening member 131 and a second fastening member 132. Either one of the first fastening member 131 and the second fastening member 132 is provided with a fastening protrusion 1311, and the other one is provided with a fastening groove 1321. The fastening protrusion 1311 is fastened and fixed with the fastening groove 1321. A cable arrangement groove 133 is formed between the first fastening member 131 and the second fastening member 132, and the cable arrangement groove 133 is configured to store the wiring harness. By providing a first fastening member 131 and a second fastening member 132, one of the first fastening member 131 and the second fastening member 132 is provided with a fastening protrusion 1311 and the other is provided with a fastening groove 1321. The fastening protrusion 1311 and the fastening groove 1321 engage with each other to achieve fastening and fixation of the first fastening member 131 and the second fastening member 132, and form a cable routing groove 133 between the first fastening member 131 and the second fastening member 132 to accommodate the wiring harness. It should be noted that in this embodiment, the first fastening member 131 is provided with the fastening protrusion 1311, and the second fastening member 132 is provided with the fastening groove 1321. The fastening protrusion 1311 extends along the extension direction of the first fastening member 131, and the fastening groove 1321 extends along the extension direction of the second fastening member 132. In other embodiments, a fastening groove 1321 may be provided on the first fastening component 131 , and a fastening protrusion 1311 may be provided on the second fastening component 132 , which is not limited in this embodiment.

[0051] Furthermore, in this embodiment, the first fastening member 131 and the second fastening member 132 are both sheet metal beams, and the fastening protrusion 1311 and the fastening groove 1321 are formed by bending. Using sheet metal beams to produce the first fastening member 131 and the second fastening member 132 effectively reduces production difficulty and improves production efficiency.

[0052] As an optional solution, as shown in Figure 1, the cabinet 100 is also equipped with a charging connector 140 and a discharging connector 150 to facilitate the connection of the high-voltage busbar system 300 with the charging equipment and the power-consuming equipment. It should be noted that in this embodiment, both the charging connector 140 and the discharging connector 150 are explosion-proof cable glands. Explosion-proof cable glands offer excellent sealing and flameproof properties, a safe and reliable structure, and simple and convenient installation. In other embodiments, the charging connector 140 and the discharging connector 150 may also be other types of connectors, and this embodiment is not limiting.

Claims

1. A marine combiner cabinet, comprising: Low voltage control system (200); A high-voltage busbar system (300) comprising at least two battery clusters, the at least two battery clusters being connected in series or in parallel with each other, and the low-voltage control system (200) being electrically connected to the at least two battery clusters; A cabinet (100) having a receiving chamber (111) configured to receive the low-voltage control system (200) and the high-voltage confluence system (300); and An insulating isolation structure (400) is arranged in the accommodating chamber (111), and the insulating isolation structure (400) is capable of splitting the accommodating chamber (111) into a low-pressure chamber (1) and a high-pressure chamber (2) that are insulated from each other; the low-pressure control system (200) is arranged in the low-pressure chamber (1), and the high-pressure confluence system (300) is arranged in the high-pressure chamber (2).

2. The marine combiner cabinet according to claim 1, wherein: The cabinet (100) comprises: The main body (110) has the accommodating cavity (111), the accommodating cavity (111) is provided with an opening, and the insulating isolation structure (400) can enter the accommodating cavity (111) along the opening; and The door body (120) is connected to the main body (110) and blocks the opening.

3. The marine combiner cabinet according to claim 2, wherein: The insulating isolation structure (400) comprises: A first bent portion (410); and a second bending portion (420) connected to the first bending portion (410); the extension direction of the first bending portion (410) is perpendicular to the plane where the opening is located; the extension direction of the second bending portion (420) is parallel to the plane where the opening is located; the second bending portion (420) is arranged at one end of the accommodating cavity (111) close to the opening; The first bent portion (410) and a portion of the cavity wall of the accommodating cavity (111) enclose the low-pressure chamber (1), and the low-pressure chamber (1) is directly connected to the opening; The second bent portion (420), the first bent portion (410) and part of the cavity wall of the accommodating cavity (111) form the high-pressure chamber (2), and the high-pressure chamber (2) is not directly connected to the opening.

4. The marine combiner cabinet according to claim 2, wherein: The cabinet (100) further includes: A wiring arrangement structure (130), the wiring arrangement structure (130) being arranged in the accommodating cavity (111), the wiring arrangement structure (130) being arranged to accommodate wiring harnesses of the low-voltage control system (200) and the high-voltage confluence system (300).

5. The marine combiner cabinet according to claim 4, wherein: The wiring structure (130) comprises: A first fastening member (131); and A second fastening member (132), wherein any one of the first fastening member (131) and the second fastening member (132) is provided with a fastening protrusion (1311), and the other of the two is provided with a fastening groove (1321), the fastening protrusion (1311) and the fastening groove (1321) being fastened and fixed, and a wire arrangement groove (133) is formed between the first fastening member (131) and the second fastening member (132), and the wire arrangement groove (133) is configured to store a wire harness.

6. The marine combiner cabinet according to claim 3, wherein: An indicator light (122) is provided on the door body (120), and the indicator light (122) is connected to a wiring harness of the low-voltage control system (200).

7. The marine combiner cabinet according to claim 6, wherein: The door body (120) is also provided with a touch screen (123), the touch screen (123) being connected to a wiring harness of the low-voltage control system (200), and the touch screen (123) being capable of controlling the low-voltage control system (200).

8. The marine combiner cabinet according to claim 7, wherein: The door body (120) is also provided with an emergency stop button (124), the emergency stop button (124) being connected to the wiring harness of the high-voltage busbar system (300), and the emergency stop button (124) can independently control the start and stop of the high-voltage busbar system (300).

9. The marine combiner cabinet according to claim 2, wherein: The main body (110) satisfies at least one of the following: An air intake assembly (112) is provided on the main body (110), and the air intake assembly (112) is capable of driving external air to enter the accommodating chamber (111); The main body (110) is provided with a gas outlet component (113), and the gas outlet component (113) can drive the gas in the accommodating cavity (111) to be discharged to the outside.

10. The marine combiner cabinet according to claim 9, wherein: The air intake assembly (112) comprises: A filter window, wherein an air inlet is provided on the main body (110), and the filter window is sealed at the air inlet; and A fan is arranged at one end of the filter window close to the accommodating chamber (111), and the fan is arranged to drive external air to enter the accommodating chamber (111) along the filter window.

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