Marine combined battery box

Abstract

The utility model discloses a marine combined battery box relates to the technical field of battery box, and this combined battery box includes the base, the top of base is provided with the protection box, the top of base and be located protection box's inside are provided with converter room, switch board, isolation transformer, BMS and cooling type battery stand respectively, the inside of cooling type battery stand places the battery package, converter room, isolation transformer and BMS all are through the electric connection of wire and switch board electric nature. The utility model discloses the protection box of the base based on the construction, the converter room integration of inside A area can directly dock the existing shore power box of wharf, can use the idle time of ship 8-10 hours unloading, completes the full filling of battery package on B area cooling type battery stand, and does not need the high construction cost of additional direct current medium voltage charging station.

Description

Technical Field

[0001] This utility model relates to the field of battery box technology, specifically a marine combined battery box. Background Technology

[0002] Due to their clean and efficient characteristics, power batteries have been identified as the core choice for the main power source of inland waterway vessels. From the perspective of the relationship between the battery box and the ship, there is a close energy supply and equipment adaptation requirement between the two. On the one hand, after ships (especially pure battery ships) eliminate traditional diesel generator sets, the energy of the entire ship depends entirely on the power battery box. Not only does the variable frequency AC motor of the propulsion system need to be driven by the 690V-750V DC medium voltage output from the power battery box (converted to AC by an inverter), but the 380V / 220V low voltage AC electrical appliances of the entire ship also need to be powered by the power battery box after being inverted and stepped down. The power battery box has become the core energy carrier for the operation of the ship.

[0003] Existing battery boxes mostly rely on dedicated DC medium-voltage charging stations for power replenishment, which cannot be directly connected to existing shore power boxes at the dock. This requires additional investment in the construction of charging stations at high costs, and the power replenishment efficiency is low, making it impossible to complete a full charge during the idle time of loading and unloading cargo on ships. At the same time, there is a lack of DC medium-voltage fast charging interfaces, resulting in insufficient emergency power replenishment capabilities. The investment and operation thresholds for power replenishment facilities are high, making it difficult to meet the diverse power replenishment needs of ships. Furthermore, there is no convenient maintenance structure, making it difficult to maintain charging-related components in the later stages.

[0004] Based on this, a marine combined battery box is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a marine combined battery box to solve the problem in the prior art that it relies on dedicated DC medium-voltage charging stations for power replenishment and cannot be directly connected to existing shore power boxes at the dock.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A marine combined battery box includes a base, and a protective box is provided on the top of the base;

[0008] The base is located on top of the protective box and inside the enclosure. It contains a converter compartment, a distribution cabinet, an isolation transformer, a BMS, and a cooled battery rack. The cooled battery rack contains a battery pack. The converter compartment, the isolation transformer, and the BMS are all electrically connected to the distribution cabinet via wires.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: the protective box is provided with mounting mechanisms on both sides of its exterior, and the mounting mechanisms are equipped with fire extinguishing mechanisms inside.

[0011] In one alternative: the installation mechanism includes a placement frame, and a first fixing plate is fixedly connected to both outer sides of the placement frame, and a first bolt is provided between the first fixing plate and the protective box.

[0012] In one alternative: a second fixing plate is fixedly connected to one side of the placement rack, and a first mounting hole is provided on one side of the second fixing plate; a mounting sleeve is rotatably installed on the other side of the placement rack via a pin, and a second mounting hole is provided on one side of the mounting sleeve; a second bolt is threadedly connected between the mounting sleeve and the second fixing plate via the second mounting hole and the first mounting hole.

[0013] In one alternative: the top of the placement rack has a mounting slot.

[0014] In one alternative: the fire extinguishing mechanism includes a dry powder fire extinguishing canister, which is placed inside a mounting rack via a mounting slot. A fire detection tube is provided on one side of the dry powder fire extinguishing canister, and the fire detection tube is laid on both sides inside the protective box.

[0015] In one alternative: the top of the dry powder fire extinguisher is provided with a delivery pipe, which is laid on the top of the inside of the protective box, and a nozzle is provided at the bottom of the delivery pipe.

[0016] In one alternative: both ends of the protective box are equipped with inspection doors that are rotatably mounted via pins.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model is a protective box built on a base. The converter room in area A inside the box integrates an AC 380V charger (working in conjunction with the converter). It can be directly connected to the existing shore power box at the dock. It can utilize the idle time of 8-10 hours of loading and unloading on the ship to fully charge the battery pack on the cooled battery rack in area B, without the need to build an additional costly DC medium-voltage charging station. At the same time, the outside of the protective box is reserved with a DC medium-voltage input interface that connects to the internal wiring of the converter room. It can be connected to a DC charging pile to realize fast charging of the battery pack, taking into account both regular and emergency energy replenishment needs. It significantly reduces the investment and operation threshold of energy replenishment facilities. In addition, the maintenance doors at both ends of the protective box facilitate the maintenance of charging-related components in the future.

[0019] 2. The mounting mechanisms on both sides of the protective box of this utility model can stably fix the fire extinguishing mechanism. The fire detection tube of the fire extinguishing mechanism is laid inside the protective box. When an open flame appears inside the protective box, the fire detection tube will be damaged and the dry powder fire extinguishing tank will be activated. The extinguishing agent is delivered to the nozzle through the delivery pipe and sprayed out to quickly extinguish the open flame and ensure equipment safety. When replacing the dry powder fire extinguishing tank, the mounting sleeve of the mounting mechanism can be opened by simply removing the bolts. The old tank can be easily taken out and the new tank can be placed through the mounting slot. The operation is simple and efficient, improving the practicality of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the internal structure of the protective box of this utility model.

[0022] Figure 3 This is a schematic diagram of the installation mechanism of this utility model.

[0023] Figure 4 This is a schematic diagram of the fire extinguishing mechanism of this utility model.

[0024] Figure reference numerals: 1. Base; 2. Protection box; 3. Inspection door; 4. Converter room; 5. Distribution cabinet; 6. Isolation transformer; 7. BMS; 8. Cooled battery rack; 9. Battery pack; 10. Mounting mechanism; 101. Placement rack; 102. First fixing plate; 103. First bolt; 104. Second fixing plate; 105. First mounting hole; 106. Mounting sleeve; 107. Second mounting hole; 108. Second bolt; 109. Mounting groove; 11. Fire extinguishing mechanism; 111. Dry powder fire extinguisher; 112. Fire detection tube; 113. Delivery pipe; 114. Nozzle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] In one embodiment, such as Figures 1-4 As shown, a marine combined battery box includes a base 1, a protective box 2 is provided on the top of the base 1, and inspection doors 3 are rotatably installed at both ends of the protective box 2 via pins.

[0027] The base 1 is located on top of the protective box 2 and inside the base 1. The converter chamber 4, the distribution cabinet 5, the isolation transformer 6, the BMS7 and the cooling battery rack 8 are respectively installed. The cooling battery rack 8 contains a battery pack 9. The converter chamber 4, the isolation transformer 6 and the BMS7 are all electrically connected to the distribution cabinet 5 through wires.

[0028] In this embodiment, the interior of the protection box 2 is divided into two sections: A and B. Section A houses the inverter chamber 4, the distribution cabinet 5, and the isolation transformer 6. Section B houses the BMS 7, the cooled battery rack 8, the battery pack 9, and the busbar. The protection box 2, built on the base 1, integrates a 380V AC charger within the inverter chamber 4, working in conjunction with the inverter to achieve charging functionality. It can directly connect to existing shore power boxes at the dock, fully charging the battery pack 9 on the cooled battery rack 8 within the protection box 2 using only 8-10 hours of ship loading and unloading time, eliminating the need for an additional, costly DC medium-voltage charging station. Simultaneously, a DC medium-voltage input interface is reserved on the outside of the protection box 2 to connect to the internal wiring of the inverter chamber 4, allowing for direct connection to DC power. The charging pile enables fast charging of battery pack 9, accommodating both regular and emergency energy replenishment needs, significantly reducing the investment and operational barriers of energy replenishment facilities. The maintenance door 3 on the side of the protection box 2 facilitates future maintenance of charging-related components. The bidirectional converter in the converter room 4 can directly transmit the DC medium voltage (690V-750V) output from the battery pack 9 on the cooled battery rack 8 to the inverter of the propulsion motor through the busbar and BMS7 to power the propulsion motor. At the same time, the bidirectional converter can convert the DC medium voltage to AC, and then step it down to 380V AC low voltage through the isolation transformer 6, which is then connected to the ship's electrical circuit through the distribution cabinet 5. The ship does not need to install additional conversion equipment and can continue to use the original AC bus.

[0029] In one embodiment, such as Figure 1 As shown, the protective box 2 is provided with installation mechanisms 10 on both sides of the exterior. The installation mechanism 10 is provided with a fire extinguishing mechanism 11 inside. The fire extinguishing mechanism 11 ensures the safety of the equipment, and the installation mechanism 10 facilitates the replacement of the dry powder fire extinguisher 111.

[0030] In one embodiment, such as Figure 1 and Figure 3As shown, the installation mechanism 10 includes a placement frame 101. First fixing plates 102 are fixedly connected to both outer sides of the placement frame 101. First fixing plates 102 are connected to the protective box 2 via first bolts 103. A second fixing plate 104 is fixedly connected to one side of the placement frame 101, and a first mounting hole 105 is provided on one side of the second fixing plate 104. An mounting sleeve 106 is rotatably mounted on the other side of the placement frame 101 via a pin. A second mounting hole 107 is provided on one side of the mounting sleeve 106. The mounting sleeve 106 and the second fixing plate 104 are connected via the second mounting hole 107 and the first mounting hole 105. The second bolt 108 is threadedly connected to the 05. The top of the placement rack 101 is provided with an installation groove 109. After long-term storage, the internal air pressure of the dry powder fire extinguisher 111 decreases, requiring timely replacement. By removing the second bolt 108, the installation sleeve 106 can be rotated and opened, making it easy to remove the dry powder fire extinguisher 111 from the placement rack 101. Then, a new dry powder fire extinguisher 111 is placed inside the placement rack 101 through the installation groove 109. By rotating the installation sleeve 106, the second bolt 108 is used to fix the installation sleeve 106 to the second fixing plate 104, which facilitates the replacement of the dry powder fire extinguisher 111 and improves its practicality.

[0031] In one embodiment, such as Figure 3 and Figure 4 As shown, the fire extinguishing mechanism 11 includes a dry powder fire extinguishing canister 111. The dry powder fire extinguishing canister 111 is placed inside the placement rack 101 through the mounting groove 109. A fire detection tube 112 is provided on one side of the dry powder fire extinguishing canister 111, and the fire detection tube 112 is laid on both sides inside the protective box 2. A delivery pipe 113 is provided on the top of the dry powder fire extinguishing canister 111, and the delivery pipe 113 is laid on the top inside the protective box 2. A nozzle 114 is provided at the bottom of the delivery pipe 113. When an open flame appears inside the protective box 2, the open flame will damage the fire detection tube 112, and the air pressure inside the fire detection tube 112 will drop rapidly, which will trigger the opening of the container valve of the dry powder fire extinguishing canister 111. The extinguishing agent is introduced into the interior of the nozzle 114 through the delivery pipe 113 and finally sprayed out by the nozzle 114 to quickly extinguish the fire.

[0032] The above embodiments disclose a marine combined battery box, in which a 380V AC charger is integrated inside the protection box 2 built on the base 1 and the converter chamber 4. This charger works in conjunction with the converter to achieve charging functionality. It can be directly connected to existing shore power boxes at the dock, and the battery pack 9 on the cooled battery rack 8 inside the protection box 2 can be fully charged during the ship's 8-10 hours of loading and unloading time, eliminating the need for an additional, costly DC medium-voltage charging station. Simultaneously, a DC medium-voltage input interface is reserved on the outside of the protection box 2 to connect to the internal wiring of the converter chamber 4, enabling fast charging of the battery pack 9 via a DC charging pile, thus meeting both regular and emergency power replenishment needs. This significantly reduces the investment and operation threshold of energy replenishment facilities. The maintenance door 3 on the side of the protection box 2 facilitates the maintenance of charging-related components in the future. The bidirectional converter in the converter room 4 can directly transmit the DC medium voltage of 690V-750V from the battery pack 9 on the cooled battery rack 8 to the inverter of the propulsion motor through the busbar and BMS7 to power the propulsion motor. At the same time, the bidirectional converter can convert the DC medium voltage to AC, and then step it down to 380V AC low voltage through the isolation transformer 6. It is then connected to the electrical circuit of the whole ship through the distribution cabinet 5. The ship does not need to install additional conversion equipment and can continue to use the original AC bus.

[0033] When an open flame appears inside the protection box 2, the open flame will damage the fire detection tube 112, and the air pressure inside the fire detection tube 112 will drop rapidly. This will trigger the opening of the container valve of the dry powder fire extinguisher 111. The extinguishing agent will be introduced into the nozzle 114 through the delivery pipe 113 and finally sprayed out by the nozzle 114 to extinguish the fire quickly.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A marine combined battery box, comprising a base (1), wherein a protective box (2) is provided on the top of the base (1); Its features are, The top of the base (1) and inside the protection box (2) are respectively provided a converter chamber (4), a power distribution cabinet (5), an isolation transformer (6), a BMS (7) and a cooling battery rack (8). The cooling battery rack (8) contains a battery pack (9). The converter chamber (4), the isolation transformer (6) and the BMS (7) are all electrically connected to the power distribution cabinet (5) through wires.

2. A marine combined battery box according to claim 1, characterized in that, The protective box (2) is provided with installation mechanisms (10) on both sides of its exterior, and a fire extinguishing mechanism (11) is provided inside the installation mechanism (10).

3. A marine combined battery box according to claim 2, characterized in that, The installation mechanism (10) includes a placement frame (101), and a first fixing plate (102) is fixedly connected to both sides of the outer side of the placement frame (101). A first bolt (103) is provided between the first fixing plate (102) and the protective box (2).

4. A marine combined battery box according to claim 3, characterized in that, A second fixing plate (104) is fixedly connected to one side of the placement rack (101), and a first mounting hole (105) is provided on one side of the second fixing plate (104). An mounting sleeve (106) is rotatably installed on the other side of the placement rack (101) through a pin. A second mounting hole (107) is provided on one side of the mounting sleeve (106). A second bolt (108) is threadedly connected between the mounting sleeve (106) and the second fixing plate (104) through the second mounting hole (107) and the first mounting hole (105).

5. A marine combined battery box according to claim 4, characterized in that, The top of the placement rack (101) is provided with a mounting groove (109).

6. A marine combined battery box according to claim 5, characterized in that, The fire extinguishing mechanism (11) includes a dry powder fire extinguishing canister (111), which is placed inside the placement rack (101) through the mounting groove (109). A fire detection tube (112) is provided on one side of the dry powder fire extinguishing canister (111), and the fire detection tube (112) is laid on both sides inside the protective box (2).

7. A marine combined battery box according to claim 6, characterized in that, The top of the dry powder fire extinguisher (111) is provided with a delivery pipe (113), and the delivery pipe (113) is laid on the top inside the protective box (2). The bottom of the delivery pipe (113) is provided with a nozzle (114).

8. A marine combined battery box according to claim 1, characterized in that, Both ends of the protective box (2) are equipped with inspection doors (3) via pins.

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