Bus bar cabinet for ship

Abstract

To provide a marine bus bar cabinet which ensures safety of use, has a compact structure, effectively saves a mounting space, satisfies actual mounting needs, stably outputs power satisfying requirements, and satisfies actual power use needs of a ship.SOLUTION: A busbar cabinet for a ship, comprising a low-voltage control system 200, a high-voltage busbar system 300, a cabinet body 100 and an insulation isolation structure 400, wherein the busbar cabinet comprises at least two sets of battery clusters that are in series with each other and in parallel with each other. The low-voltage control system is electrically connected to at least two groups of battery clusters, the cabinet body has a receiving cavity 111 for receiving the low-voltage control system and the high-voltage busbar system, the insulation isolation structure is provided in the receiving cavity, the insulation isolation structure can divide the receiving cavity into a low-voltage chamber and a high-voltage chamber insulated from each other, the low-voltage control system is provided in the low-voltage chamber, and the high-voltage busbar system is provided in the high-voltage chamber.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] This application claims priority from a Chinese patent application bearing application number 202422017930.X, filed with the China Patent Office on August 19, 2024, the entire contents of which are incorporated herein by reference.

[0002] This application relates to the technical field of marine power, and in particular to marine busbar cabinets. [Background technology]

[0003] New energy ships have attracted widespread attention due to their advantages of low energy consumption, zero pollution, low cost, etc. In new energy ships, the power system is the core of the new energy ship power system. The power system includes a high-voltage busbar system and a low-voltage control system configured to control the start and stop of the high-voltage busbar system, and is configured to realize power merging of battery clusters through the high-voltage busbar system. Summary of the Invention [Problem to be solved by the invention]

[0004] In the related art, the high-voltage busbar system is composed of multiple independently installed high-voltage boxes, each housing a battery cluster, and the low-voltage control system is composed of a low-voltage box. The multiple high-voltage and low-voltage boxes are independent of each other and are connected to each other via a wire harness, and are also connected to the low-voltage box via a wire harness. However, the space occupied by these multiple independently installed high-voltage and low-voltage boxes is too large, and the limited hold space on a ship makes it impossible to accommodate the independently installed high-voltage and low-voltage boxes, failing to meet actual installation needs. [Means for solving the problem]

[0005] In a first aspect, the present application provides: a low pressure control system; The low-voltage control system includes at least two battery clusters, the at least two battery clusters being connected in series or in parallel with each other, and a high-voltage bus bar system electrically connected to the at least two battery clusters; a cabinet body having an accommodation cavity for accommodating the low-voltage control system and the high-voltage bus bar system; an insulating isolation structure provided in the accommodating cavity, capable of dividing the accommodating cavity into a low-pressure chamber and a high-pressure chamber which are insulated from each other, wherein the low-pressure control system is provided in the low-pressure chamber, and the high-pressure bus bar system is provided in the high-pressure chamber. We provide marine busbar cabinets. [Effects of the Invention]

[0006] The marine busbar cabinet according to the present application has a housing cavity for housing a low-voltage control system and a high-voltage busbar system within the cabinet body, and an insulating isolation structure is used to divide the housing cavity into a low-pressure chamber and a high-pressure chamber that are insulated from each other. The low-voltage control system is located in the low-pressure chamber, and the high-voltage busbar system is located in the high-pressure chamber, thereby realizing integrated housing of the low-voltage control system and the high-voltage busbar system, which not only ensures safety in use, but also has a compact structure, effectively saves installation space, and meets actual installation needs. Furthermore, by ensuring that the high-voltage busbar system has at least two sets of battery clusters connected in series and / or parallel, the high-voltage busbar system can output stable and satisfactory power to meet the actual power usage needs of the ship. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a structural schematic diagram of a marine bus bar cabinet according to an embodiment of the present application; [Figure 2] FIG. 1 is a front view of a marine bus bar cabinet according to an embodiment of the present application. [Figure 3] FIG. 1 is an exploded view of a marine bus bar cabinet according to an embodiment of the present application. [Figure 4] 1 is a structural schematic diagram of a marine busbar cabinet in which a door body and a part of a main body are hidden according to an embodiment of the present application. FIG. [Figure 5] 1 is a cross-sectional view of a marine bus bar cabinet according to an embodiment of the present application; [Figure 6] FIG. 6 is a partial enlarged schematic view of a portion A in FIG. 5. DETAILED DESCRIPTION OF THE INVENTION

[0008] In new energy ships, the power system is the core of the new energy ship power system. The power system includes a high-voltage busbar system and a low-voltage control system. The high-voltage busbar system is made up of multiple independently installed high-voltage boxes, each housing a battery cluster, and the low-voltage control system is made up of a low-voltage box. The multiple high-voltage and low-voltage boxes are independent of each other and connected to each other via wiring harnesses, and are also connected to the low-voltage box via wiring harnesses. Such multiple independently installed high-voltage and low-voltage boxes occupy too much space, and the limited hold space conditions in the ship make it impossible to accommodate the independently installed high-voltage and low-voltage boxes, failing to meet actual installation needs.

[0009] 1 to 4, this embodiment provides a marine busbar cabinet comprising a cabinet body 100, a low-voltage control system 200, a high-voltage busbar system 300, and an insulating isolation structure 400, wherein the high-voltage busbar system 300 comprises at least two sets of battery clusters connected in series and / or parallel to each other, the low-voltage control system 200 is electrically connected to the battery clusters, the cabinet body 100 has an accommodating cavity 111 for accommodating the low-voltage control system 200 and the high-voltage busbar system 300, the insulating isolation structure 400 is provided in the accommodating cavity 111, and the insulating isolation structure 400 can divide the accommodating cavity 111 into a low-pressure chamber 1 and a high-pressure chamber 2 that are insulated from each other, the low-voltage control system 200 is provided in the low-pressure chamber 1, and the high-pressure busbar system 300 is provided in the high-pressure chamber 2.

[0010] The marine busbar cabinet has a cabinet body 100 provided with an accommodating cavity 111 for accommodating a low-voltage control system 200 and a high-voltage busbar system 300, and an insulating isolation structure 400 used to divide the accommodating cavity 111 into a low-pressure chamber 1 and a high-pressure chamber 2, which are insulated from each other. The low-voltage control system 200 is located in the low-pressure chamber 1, and the high-voltage busbar system 300 is located in the high-pressure chamber 2. This achieves integrated accommodation of the low-voltage control system 200 and the high-voltage busbar system 300, ensuring safety in use, a compact structure, effective space saving for installation, and meeting actual installation needs. Furthermore, by ensuring that the high-voltage busbar system 300 is equipped with at least two battery clusters connected in series and / or parallel, the high-voltage busbar system 300 can output stable and satisfactory power, meeting the actual power usage needs of the ship.

[0011] For example, in this embodiment, the high-voltage busbar system 300 includes five parallel-connected battery clusters, each with a maximum current of 140 A or less, and the low-voltage control system 200 can individually control the charging and discharging of each battery cluster. In other embodiments, the number of battery clusters in the high-voltage busbar system 300 and the maximum current value of each battery cluster may be adjusted according to actual needs, provided safety is ensured. This is not a limitation of this embodiment, as long as the low-voltage control system 200 can individually control the charging and discharging of each battery cluster. In this embodiment, each battery cluster has a length of 639 mm, a width of 381 mm, and a height of 1470 mm. In other embodiments, the specifications of the battery clusters may be adjusted according to actual power usage needs, and the specifications of the cabinet 100 may also be adaptively adjusted, so that the cabinet 100 can integrate the low-voltage control system 200 and the high-voltage busbar system 300.

[0012] For example, the bus bars in the high-voltage bus bar system 300 are copper bars, each with a thickness of 6 mm, a length and width of 50 mm, and a current-carrying capacity of 800 A, which ensures current safety for the battery cluster. In addition, the electrical gap between the copper bar and the external conductive part in the high-voltage bus bar system 300 is 30 mm or more, which improves the safety of use of the ship's bus bar cabinet.

[0013] 3 , in this embodiment, low-voltage control system 200 includes control switch 210, battery management system 220, and switching power supply 230. Here, switching power supply 230 is configured to switch the output voltage type of the battery clusters. Battery management system 220 and switching power supply 230 are respectively provided on both sides of cabinet body 100. Battery management system 220 is connected to each battery cluster via a wiring harness. Battery management system 220 can detect voltage and current information of each battery cluster in real time. Each battery cluster is connected to a low-voltage communication wiring harness via control switch 210. Control switch 210 is configured to control conduction and interruption between the battery clusters and the low-voltage communication wiring harness. Note that in this embodiment, 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, AC / DC power supply, control switch 210, and battery management system 220 are all related art and will not be described again here.

[0014] In this embodiment, the high-voltage busbar system 300 further includes a fuse 310 and a relay 320, and the relay 320 and the fuse 310 are both connected to the battery cluster via a wire harness, and the control switch 210 is connected to the relay 320 via a low-voltage communication wire harness. By installing the relay 320, the low-voltage control system 200 can control the high-voltage busbar system 300, and by installing the fuse 310, the output of the high-voltage busbar system 300 can be cut off, ensuring safety in use.

[0015] In a preferred embodiment, the cabinet body 100 comprises a main body 110 and a door 120, wherein the main body 110 has an accommodating cavity 111, an opening in the accommodating cavity 111, through which the insulating isolation structure 400 can enter the accommodating cavity 111, and the door 120 is connected to the main body 110 to close the opening. The cabinet body 100 is installed as the main body 110 having the accommodating cavity 111, and the opening in the accommodating cavity 111 makes it easy to install and remove the insulating isolation structure 400. Furthermore, the door 120 is connected to the main body 110 and is installed to close the opening, thereby improving protection for the low-voltage control system 200 in the low-pressure chamber 1 and the high-pressure busbar system 300 in the high-pressure chamber 2. In this embodiment, the door 120 is pivotally attached to the main body 110 and is provided with a handle 121, which makes it easy to drive the door 120 to rotate relative to the main body 110.

[0016] In order to improve the stability of the body 110, the body 110 is provided with connecting rings 114, which can be connected and fixed to the ship's hold with ropes to prevent the body 110 from tipping over due to pitching that occurs while the ship is traveling. In this embodiment, four connecting rings 114 are provided at intervals around the circumference of the body 110 at the upper end of the body 110, and each connecting ring 114 is hung and fixed to the ship's hold with a single rope. In other embodiments, the number of connecting rings 114 can be adjusted according to actual needs, and this embodiment is not limited to this number.

[0017] The structure of the insulating isolation structure 400 will be described with reference to FIG. 4. The insulating isolation structure 400 comprises a first bent portion 410 and a second bent portion 420 that are interconnected, wherein the extension direction of the first bent portion 410 is perpendicular to the plane of the opening, and the extension direction of the second bent portion 420 is parallel to the plane of the opening. The second bent portion 420 is located at the end of the accommodation cavity 111 that is close to the opening. A low-pressure chamber 1 is formed by being surrounded by the first bent portion 410 and a portion of the cavity wall of the accommodation cavity 111, and the low-pressure chamber 1 is connected directly to the opening. A high-pressure chamber 2 is formed by being surrounded by the second bent portion 420, the first bent portion 410, and a portion of the cavity wall of the accommodation cavity 111, and the high-pressure chamber 2 is not connected directly to the opening.

[0018] The insulating isolation structure 400 is arranged to have a first bent portion 410 and a second bent portion 420 that are interconnected. By aligning the extension direction of the first bent portion 410 perpendicular to the plane of the opening, the accommodation cavity 111 can be divided into two regions that face the opening and communicate with each other. By aligning the extension direction of the second bent portion 420 parallel to the plane of the opening and locating the second bent portion 420 at the end closest to the opening, the second bent portion 420 can close one of the openings defined by the first bent portion 410. The region with the closed opening is designated as the high-pressure chamber 2, which can improve protection for the battery cluster in the high-pressure busbar system 300. The region with the open opening is designated as the low-pressure chamber 1, which can facilitate subsequent debugging by staff. When it becomes necessary to debug the low-pressure control system 200, the low-pressure chamber 1 is directly opposite the opening and communicates with the opening, so that the low-pressure control system 200 can be debugged simply by opening the door body 120.

[0019] In this embodiment, both the first folded portion 410 and the second folded portion 420 are made of acrylic material. Acrylic material not only has good electrical insulation properties, high surface hardness and gloss, and excellent high-temperature performance, but also has good processability, and can be formed by thermoforming or mechanical processing. In other embodiments, the first folded portion 410 and the second folded portion 420 can be made of other insulating materials, and this embodiment is not limited to these.

[0020] In this embodiment, the opening is located on the side of the accommodating cavity 111, and the accommodating cavity 111 is divided into a low-pressure chamber 1 and a high-pressure chamber 2 that are stacked one above the other by the insulating isolation structure 400, and the high-pressure chamber 2 is located below the low-pressure chamber 1 so as to accommodate the battery cluster in the high-pressure bus bar system 300. In other embodiments, the low-pressure chamber 1 and the high-pressure chamber 2 may be arranged side by side along a horizontal plane, and this is not limited to this embodiment.

[0021] In a preferred embodiment, the main body 110 is provided with an intake assembly 112 and an exhaust assembly 113. The intake assembly 112 is operable to allow external gas to enter the accommodation cavity 111, and the exhaust assembly 113 is operable to exhaust gas from the accommodation cavity 111 to the outside. Providing the intake assembly 112 and the exhaust assembly 113 in the main body 110 realizes circulation of external gas and gas within the cabinet body 100, improves the heat dissipation effect for the low-voltage control system 200 and the high-voltage bus bar system 300 within the cabinet body 100, and further improves protection for the low-voltage control system 200 and the high-voltage bus bar system 300. In another embodiment, the intake assembly 112 is provided at the bottom end of the main body 110, and the exhaust assembly 113 is provided at the top end of the main body 110, thereby improving the circulation effect of air within the main body 110. In other embodiments, the main body 110 may be provided with only the intake assembly 112, or the main body 110 may be provided with only the exhaust assembly 113, which is not limited in this embodiment.

[0022] For example, the air intake assembly 112 includes a filter window and a fan, where an air intake port is opened in the main body 110, the filter window is closed to the air intake port, and the fan is provided at an end of the filter window close to the housing cavity 111, and the fan is driven to drive external gas along the filter window into the housing cavity 111. The air intake port is opened in the main body 110, the air intake port is closed by the filter window, and the fan is provided at an end of the filter window close to the housing cavity 111, and the fan is driven to drive external gas along the filter window into the housing cavity 111. This not only effectively drives external gas, but also filters the gas entering the housing cavity 111 and prevents foreign matter from entering the housing cavity 111 along the air intake port, thereby improving protection for the low-voltage control system 200 and the high-voltage busbar system 300. In this embodiment, the filter window is a blind. In other embodiments, the filter window may be a frame with a filtering mesh installed, but this is not limited to this embodiment.

[0023] Also, the structure of the exhaust assembly 113 is similar to that of the intake assembly 112, and will not be repeated here to ensure brevity of the description.

[0024] To facilitate monitoring of the operating status of the marine busbar cabinet, the door 120 is provided with an indicator light 122 connected to the low-voltage control system 200 via a wire harness. By providing the indicator light 122 connected to the low-voltage control system 200 via a wire harness on the door 120, staff can observe the indicator light to determine the operating status of the marine busbar cabinet, providing effective guidance. The indicator light 122 can be switched between an off state, a constant light state, and a flashing state. Switching the indicator light 122 between the off state, the constant light state, and the flashing state improves the effectiveness of providing guidance to staff. The indicator light 122 may include, but is not limited to, an operation indicator light, a fault indicator light, an alarm indicator light, a low SOC (State of Charge) indicator light, an overheat indicator light, a power loss indicator light, a start / stop indicator light, and a reset indicator light. It should be understood that in other embodiments, the indicator information of the indicator light may be adjusted according to the functional needs to be realized, and this embodiment is not limited to these.

[0025] In addition, the door body 120 is further provided with a touch screen 123 connected to the low-voltage control system 200 via a wire harness, 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 low-voltage control system 200 via a wire harness, the touch screen 123 can control the low-voltage control system 200. When it is necessary to adjust the output power of the marine busbar cabinet, there is no need to open the door body 120 to adjust the low-voltage control system 200; this can be achieved by simply operating the touch screen 123, which simplifies the adjustment difficulty and improves the adjustment efficiency. Note that the structure and operating principle of the touch screen 123 both belong to the related art and will not be described again here.

[0026] In order to improve the safety of use of the marine busbar cabinet, the door body 120 is further provided with an emergency stop button 124 connected to the high-voltage busbar system 300 by a wire harness, and the emergency stop button 124 can independently control the activation and closing of the high-voltage busbar system 300. By providing the emergency stop button 124 connected to the high-voltage busbar system 300 by a wire harness on the door body 120, it is ensured that the emergency stop button 124 can independently control the activation and stopping of the high-voltage busbar system 300, and if an accident occurs in the marine busbar cabinet, the emergency stop button 124 can be directly pressed to stop the operation of the high-voltage busbar system 300, thereby ensuring the safety of use of the marine busbar cabinet.

[0027] 3, 5 and 6, in a preferred embodiment, the cabinet body 100 further includes a wiring structure 130 provided in the accommodating cavity 111, the wiring structure 130 being configured to accommodate the wire harnesses of the low-voltage control system 200 and the high-voltage bus bar system 300. By providing the wiring structure 130 to accommodate the wire harnesses of the low-voltage control system 200 and the high-voltage bus bar system 300, the efficiency of accommodating the wire harnesses of the low-voltage control system 200 and the high-voltage bus bar system 300 can be improved, the orderliness of the interior of the accommodating cavity 111 can be improved, and subsequent inspection and maintenance can be facilitated.

[0028] For example, as shown in FIG. 6, the wiring structure 130 comprises a first engaging member 131 and a second engaging member 132, and either the first engaging member 131 or the second engaging member 132 has an engaging protrusion 1311 provided thereon, and the other has an engaging groove 1321 provided thereon, the engaging protrusion 1311 being engaged and fixed in the engaging groove 1321, and a wiring groove 133 being formed between the first engaging member 131 and the second engaging member 132, and the wiring groove 133 being configured to accommodate a wire harness. First engaging member 131 and second engaging member 132 are provided, and engaging protrusion 1311 is provided on one of first engaging member 131 and second engaging member 132, and engaging recess groove 1321 is provided on the other. Engagement between engaging protrusion 1311 and engaging recess groove 1321 is utilized to realize engagement and fixation of first engaging member 131 and second engaging member 132, and storage in the wire harness is realized by forming wiring groove 133 between first engaging member 131 and second engaging member 132. In this embodiment, first engaging member 131 is provided with engaging protrusion 1311, and second engaging member 132 is provided with engaging recess groove 1321, and engaging protrusion 1311 extends along the extension direction of first engaging member 131, and engaging recess groove 1321 extends along the extension direction of second engaging member 132. In other embodiments, the first engaging member 131 may be provided with the engaging groove 1321, and the second engaging member 132 may be provided with the engaging protrusion 1311, and this is not limited to this embodiment.

[0029] In this embodiment, the first engaging member 131 and the second engaging member 132 are both sheet metal beams, and the engaging protrusions 1311 and the engaging grooves 1321 are both formed by bending. By using sheet metal beams to produce the first engaging member 131 and the second engaging member 132, production difficulty is effectively reduced and production efficiency is improved.

[0030] In a preferred embodiment, as shown in FIG. 1 , the cabinet body 100 is further provided with a charging connector 140 and a discharging connector 150 to facilitate connection of the high-voltage bus bar system 300 to charging equipment and power-using equipment. In this embodiment, both the charging connector 140 and the discharging connector 150 are explosion-proof glands. The explosion-proof glands have good sealing and explosion-proof properties, a safe and reliable structure, and simple and easy installation. In other embodiments, the charging connector 140 and the discharging connector 150 may be other types of connectors, and this embodiment is not limited to these. [Explanation of symbols]

[0031] In the figure: 1...Low pressure chamber, 2...High pressure chamber, 100 Cabinet body, 110 Main body, 111 Housing cavity, 112 Intake assembly, 113 Exhaust assembly, 114 Connecting ring, 120 Door body, 121 Handle, 122 Indicator light, 123 Touch screen, 124 Emergency stop button, 130 Wiring structure, 131 First engaging member, 1311 Engaging protrusion, 132 Second engaging member, 1321 Engaging groove, 133 Wiring groove, 140 Charging connector, 150 Discharging connector 200...Low voltage control system, 210...Control switch, 220...Battery management system, 230...Switching power supply, 300···High voltage busbar system, 310···Fuse, 320···Relay, 400... insulating isolation structure, 410... first bent portion, 420... second bent portion.

Claims

1. a low pressure control system (200); The low-voltage control system (200) includes at least two sets of battery clusters, the at least two sets of battery clusters being connected in series or in parallel with each other, and a high-voltage bus bar system (300) electrically connected to the at least two sets of battery clusters; a cabinet body (100) having an accommodation cavity (111) configured to accommodate the low-voltage control system (200) and the high-voltage bus bar system (300); an insulating isolation structure (400) provided in the housing cavity (111) and capable of dividing the housing cavity (111) into a low-pressure cavity (1) and a high-pressure cavity (2) that are insulated from each other, the low-pressure control system (200) being provided in the low-pressure cavity (1), and the high-pressure bus bar system (300) being provided in the high-pressure cavity (2); Ship busbar cabinet.

2. The cabinet body (100) a main body (110) having a receiving cavity (111) with an opening, the insulating isolation structure (400) being able to enter the receiving cavity (111) along the opening; and a door body (120) connected to the main body (110) to close the opening.

2. A marine busbar cabinet according to claim 1.

3. The insulating isolation structure (400) comprises: A first bent portion (410); a second bent portion (420) connected to the first bent portion (410), the extension direction of the first bent portion (410) being perpendicular to the plane of the opening, the extension direction of the second bent portion (420) being parallel to the plane of the opening, the second bent portion (420) being provided at an end of the receiving cavity (111) close to the opening, The low-pressure chamber (1) is formed by being surrounded by the first bent portion (410) and a cavity wall of a part of the accommodation cavity (111), and the low-pressure chamber (1) directly faces the opening and communicates with the opening. The high-pressure chamber (2) is formed by being surrounded by the second bent portion (420), the first bent portion (410), and a cavity wall of a part of the accommodation cavity (111), and the high-pressure chamber (2) does not directly communicate with the opening.

3. A marine busbar cabinet according to claim 2.

4. The cabinet body (100) further includes a wiring structure (130) provided in the receiving cavity (111), The wiring structure (130) is configured to accommodate wire harnesses of the low-voltage control system (200) and the high-voltage bus bar system (300).

3. A marine busbar cabinet according to claim 2.

5. The wiring structure (130) comprises a first engaging member (131) and a second engaging member (132), An engaging protrusion (1311) is provided on either the first engaging member (131) or the second engaging member (132), and an engaging groove (1321) is provided on the other, the engaging protrusion (1311) is engaged and fixed in the engaging groove (1321), a wiring groove (133) is formed between the first engaging member (131) and the second engaging member (132), and the wiring groove (133) is configured to accommodate a wire harness.

5. A marine busbar cabinet according to claim 4.

6. The door body (120) is provided with an indicator light (122) connected to the low-voltage control system (200) by a wire harness.

4. A marine busbar cabinet according to claim 3.

7. The door body (120) is further provided with a touch screen (123) connected to the low-voltage control system (200) by a wire harness, and the touch screen (123) is capable of controlling the low-voltage control system (200).

7. A marine busbar cabinet according to claim 6.

8. The door body (120) is further provided with an emergency stop button (124) connected to the high-voltage bus bar system (300) by a wire harness, and the emergency stop button (124) can individually control start and stop of the high-voltage bus bar system (300).

8. A marine busbar cabinet according to claim 7.

9. The body (110) The body (110) is provided with an intake assembly (112) operable to allow external gas to enter the receiving cavity (111); The main body (110) is provided with an exhaust assembly (113) that can be driven to exhaust gas from the accommodation cavity (111) to the outside.

3. A marine busbar cabinet according to claim 2.

10. The intake assembly (112) a filter window that closes the air intake opening in the main body (110); a fan provided at an end of the filter window close to the receiving cavity (111), the fan being configured to drive the external gas along the filter window into the receiving cavity (111).

10. A marine busbar cabinet according to claim 9.

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