Marine battery room

By setting up an independent fire-fighting water tank, battery box, and hatch cover in the marine battery room, and equipping it with a multi-sensor linkage fire-fighting system, the problems of large space occupation and fire risk in the existing technology have been solved. This has achieved an independent working environment for the batteries and rapid cooling and isolation, thus improving safety.

CN224217608UActive Publication Date: 2026-05-08SANDIANSHUI NEW ENERGY TECH (ANHUI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SANDIANSHUI NEW ENERGY TECH (ANHUI) CO LTD
Filing Date
2025-04-21
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing marine battery compartment designs occupy a large space, have poor battery operating environments, and pose fire risks, especially when one battery catches fire, it may affect the safety of surrounding batteries.

Method used

The design includes an independent fire-fighting water tank, battery box, and battery compartment cover, equipped with smoke, liquid level, and temperature and humidity sensors. It adopts a multi-sensor linkage fire-fighting strategy, combined with a water supply and drainage system based on liquid level gauge feedback, to achieve an independent working environment and rapid cooling isolation for the battery compartment.

Benefits of technology

It provides an independent and safe battery operating environment, saves space, can quickly cool down and isolate thermal runaway, prevents fire from spreading, and improves safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224217608U_ABST
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Abstract

The utility model discloses a marine battery room which comprises a ship body, a fire pool is arranged on the ship body, a battery box is arranged above the fire pool, a battery cabin cover is arranged at the top end of the battery box, and an air outlet is formed in the inner side of the battery box, and the marine battery room is small in occupied space, good in battery working environment and high in safety.
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Description

Technical Field

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

[0002] The application of marine power battery compartments is becoming increasingly widespread. During the design process, marine power compartments need to meet the requirements of battery protection, ensuring that the batteries have suitable operating temperature and humidity, and safe fire prevention strategies.

[0003] The existing battery compartment design of electric boats is unreasonable. It occupies a lot of deck space and multiple batteries share a single battery compartment, resulting in a poor battery operating environment. The high battery temperature may pose a fire risk, and if one battery catches fire, it will affect the safety of the surrounding batteries.

[0004] Utility model patent CN217034884U, published on July 2, 2022, discloses a device entitled "An Emergency Alarm for Ship Firefighting." The device comprises a housing with fixed rods at both ends, a slider welded to the side of the fixed rods away from the housing, a slider chamber slidably connected to the outside of the slider, a first spring fixedly installed inside the slider chamber on the side away from the housing, a sliding rod welded to the side of the slider chamber away from the housing, a sliding rod chamber slidably connected to the outside of the sliding rod, a second spring welded to the top and bottom of the sliding rod chamber, and a sliding plate fixedly installed on the side of the second spring near the sliding rod. However, this emergency alarm for ship firefighting does not solve the aforementioned technical problem. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a marine battery compartment that occupies little space, provides a good battery working environment, and offers high safety.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The marine battery compartment includes a hull, a fire-fighting water tank on the hull, a battery box above the fire-fighting water tank, a battery compartment cover on the top of the battery box, and an exhaust vent inside the battery box.

[0008] The bottom of the fire water tank is equipped with an inlet and an outlet; the inside of the battery box is equipped with a smoke sensor, a liquid level sensor and a temperature and humidity sensor.

[0009] The battery compartment cover has a support frame at its edge and a positioning protrusion at its bottom, which has an arc-shaped structure.

[0010] The battery box is equipped with quick clamps, which press against the end of the battery compartment cover.

[0011] The fire water tank and the battery box are installed at equal intervals.

[0012] The battery compartment cover is equipped with a lifting frame on top, and the lifting frame is a frame structure.

[0013] The fire water tank is equipped with a battery base, and the battery base is equipped with a positioning block. The top of the positioning block is inclined.

[0014] The technical advantages of this invention are as follows: The marine battery compartment of this invention, by incorporating a fire-fighting water tank, battery boxes, and battery compartment covers, provides an independent and optimal working environment for each battery, ensuring its healthy operation. It also saves space on the ship's deck. In the event of a battery malfunction, it can quickly cool the battery and prevent thermal runaway from spreading to other batteries. The control logic, which uses multiple sets of sensor signals to trigger the fire-fighting strategy, controls the activation of the fire-fighting strategy. It also integrates the water supply and drainage system, which uses level gauges to monitor the water level in the fire-fighting water tank. In abnormal situations, it cools the thermally runaway battery, isolates and blocks the spread of thermal runaway, and quickly cuts off the connection between the battery compartment environment and the outside world, thus improving safety protection. Attached Figure Description

[0015] This manual includes the following figures, which illustrate the following:

[0016] Figure 1 This is a structural schematic diagram of the marine battery compartment and battery storage of this utility model;

[0017] Figure 2 This is a side view of the marine battery compartment of this utility model;

[0018] Figure 3 yes Figure 2 Schematic diagram of section AA;

[0019] Figure 4 This is a top view of the removal of the battery base in the marine battery compartment according to the present invention;

[0020] Figure 5 This is a three-dimensional schematic diagram of the marine battery compartment of this utility model;

[0021] Figure 6-1 and Figure 6-2 This is a three-dimensional schematic diagram of the battery compartment cover of this utility model;

[0022] Figure 7 This is a schematic diagram showing the combination of the battery compartment cover and the quick clamp of this utility model.

[0023] The following are marked in the diagram: 1. Hull; 2. Fire water tank; 3. Battery box; 4. Battery compartment cover; 5. Water inlet; 6. Drain outlet; 7. Ventilation outlet; 8. Smoke sensor; 9. Liquid level sensor; 10. Temperature and humidity sensor; 11. Support frame; 12. Positioning protrusion; 13. Quick clamp; 14. Lifting frame; 15. Battery base; 16. Positioning block; 17. Air inlet. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this invention, and to facilitate its implementation.

[0025] like Figures 1 to 7 As shown, the marine battery compartment includes a hull 1, a fire-fighting water tank 2 on the hull 1, a battery box 3 above the fire-fighting water tank 2, a battery compartment cover 4 on the top of the battery box 3, and an exhaust vent 7 on the inside of the battery box 3. The hull 1 includes a deck, and the fire-fighting water tank 2 is located below the deck, making full use of the space below the deck and ensuring the entire ship does not exceed the height limit. The bottom of the battery box 3 is located on the deck, and together with the fire-fighting water tank 2, it forms the battery compartment for placing batteries and isolates the batteries placed in the fire-fighting water tank 2. The battery cover on top of the battery box 3 provides a sealed environment for the battery compartment. Simultaneously, the exhaust vent 7 connects to the outside to remove heat from the battery compartment, providing a suitable operating temperature for the batteries. The bottom of the fire-fighting water tank 2 has an air inlet 17, which, together with the exhaust vent 7, constitutes the ventilation system for the battery compartment. The air inlet 17 is located closer to the batteries, which helps to remove the heat generated by the batteries during operation. The fire-fighting water tank 2 is equipped with a ventilation and drainage system, which, together with the design of the removable battery cover, provides a stable temperature and humidity environment for the batteries and enhances the overall airtightness and safety.

[0026] like Figure 4As shown, the bottom of the fire water tank 2 is equipped with an inlet 5 and an outlet 6; the inside of the battery box 3 is equipped with a smoke sensor 8, a liquid level sensor 9, and a temperature and humidity sensor 10. The inlet pipe is connected to the water supply system to provide fire water, and the outlet 6 is connected to the drainage system to drain the water accumulated in the battery box 3. The temperature and humidity sensor 10 is used to detect the temperature and humidity in the battery compartment. If an abnormality is detected, the fire-fighting strategy can be activated. The smoke sensor 8 is used to detect the concentration of combustible gas and abnormal smoke, and the feedback signal can activate the fire-fighting strategy. The liquid level gauge is used to monitor the liquid level. When the water level in the battery compartment exceeds the liquid level gauge, the drainage system is activated to discharge the fire water through the outlet 6. The smoke sensor 8, liquid level sensor 9, and temperature and humidity sensor 10 are all located near the exhaust vent 7, which helps to improve the detection response speed. The above structure adopts a multi-sensor collaborative control method. The temperature and humidity sensor 10 and the smoke sensor 8 jointly provide feedback signals to trigger the intelligent activation of the fire-fighting strategy and improve the accuracy of abnormal response. A dynamic water level balance mechanism is also adopted: the water supply system is monitored and adjusted in real time by the liquid level gauge to maintain the dynamic balance of the fire water level, ensuring the cooling effect while avoiding resource waste.

[0027] like Figure 6-1 and Figure 6-2 As shown, the battery compartment cover 4 has a support frame 11 at its edge and a positioning protrusion 12 at its bottom, which has an arc-shaped structure. The arc-shaped surface of the positioning protrusion 12 serves as a guide during the installation of the battery compartment cover 4. After installation, the protrusion provides a horizontal limit to the battery compartment cover 4, thereby ensuring the stable clamping effect of the quick clamp 13. The support frame 11 has a rectangular frame structure, which is used to improve the structural strength of the battery compartment cover 4 and prevent the quick clamp 13 from causing deformation of the battery compartment cover 4 due to excessive pressure.

[0028] like Figure 7 As shown, the battery box 3 is equipped with a quick clamp 13, which presses the end of the battery compartment cover 4. Using the quick clamp 13, the battery compartment cover 4 can be pressed and fixed to the top of the battery box 3, forming a seal between the batteries and reliably protecting them.

[0029] like Figure 3 As shown, the fire water tank 2 and the battery box 3 are equally spaced. The physical isolation structure of each independent fire water tank 2 forms a compartmentalized battery room layout, constituting an independent fire protection unit design. That is, each battery is equipped with an independent fire water tank 2 and water supply system, which realizes local cooling and isolation of thermal runaway batteries and prevents the fire from spreading to adjacent batteries.

[0030] like Figure 6-1 As shown, a lifting frame 14 is provided on the top of the battery compartment cover 4. The lifting frame 14 is a frame structure. The lifting frame 14 is used by the battery swapping robot to pick up the battery compartment cover 4 and place it on top of the battery box 3.

[0031] like Figure 3As shown, a battery base 15 is provided inside the fire water tank 2, and a positioning block 16 is provided on the battery base 15. The top of the positioning block 16 is inclined. The battery base 15 is used to place the battery to ensure the stability of the battery discharge process. Multiple positioning blocks 16 with inclined surfaces are used to guide the battery placement process and form a horizontal displacement constraint on the placed battery to further ensure the stability of the battery's working state.

[0032] Battery compartment operation: The ventilation system promptly removes heat from the battery compartment, ensuring the batteries operate at a suitable temperature. When an abnormal temperature occurs, the temperature sensor sends feedback to the fire suppression system. Combined with a signal from the smoke sensor, this triggers the fire suppression strategy. Once the fire suppression is activated, the water supply system supplies water to the battery compartment until the level gauge detects a water level signal. At this level, the water supply system reaches dynamic equilibrium, thus cooling the thermally runaway battery and preventing the thermal runaway from spreading to other batteries.

[0033] This marine battery compartment, equipped with a fire-fighting water tank 2, battery boxes 3, and battery compartment covers 4, provides an independent and optimal working environment for each battery, ensuring their healthy operation. It also saves space on the ship's deck 1. In case of battery malfunction, it can quickly cool the battery and prevent thermal runaway from spreading to other batteries. A control logic that uses multiple sensor signals to trigger the fire-fighting strategy is employed to control its activation. The system integrates water supply and drainage systems based on level gauge feedback from the fire-fighting water tank 2. In abnormal situations, it cools the thermally runaway battery, isolates and prevents the spread of thermal runaway, and quickly cuts off the connection between the battery compartment environment and the outside world, thus improving safety protection.

[0034] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A marine battery compartment, characterized in that: The vessel includes a hull (1), a fire pool (2) is provided on the hull (1), a battery box (3) is provided above the fire pool (2), a battery compartment cover (4) is provided at the top of the battery box (3), and an exhaust vent (7) is provided inside the battery box (3).

2. The marine battery compartment according to claim 1, characterized in that: The bottom of the fire water tank (2) is provided with an inlet (5) and a drain (6); the inside of the battery box (3) is provided with a smoke sensor (8), a liquid level sensor (9) and a temperature and humidity sensor (10).

3. The marine battery compartment according to claim 2, characterized in that: The battery compartment cover (4) has a support frame (11) on its edge and a positioning protrusion (12) at the bottom of the battery compartment cover (4). The positioning protrusion (12) has an arc-shaped structure.

4. The marine battery compartment according to claim 3, characterized in that: The battery box (3) is equipped with a quick clamp (13), which presses the end of the battery compartment cover (4).

5. The marine battery compartment according to any one of claims 1-4, characterized in that: The fire water tank (2) and the battery box (3) are installed at equal intervals.

6. The marine battery compartment according to claim 5, characterized in that: The battery compartment cover (4) is provided with a hoisting frame (14) on top, and the hoisting frame (14) is a frame structure.

7. The marine battery compartment according to claim 6, characterized in that: The fire water tank (2) is equipped with a battery base (15), and the battery base (15) is equipped with a positioning block (16), the top of the positioning block (16) is inclined.

Citation Information

Patent Citations

  • Emergency alarm for ship fire fighting

    CN217034884U