Vehicle hold fire detection system for a car carrier

By laying pipelines and infrared gas detection devices on car carriers to monitor the gas released by lithium batteries, the problem of inaccurate fire monitoring in existing technologies has been solved, enabling early and accurate lithium battery fault detection and fire early warning, and reducing false alarms.

CN224383760UActive Publication Date: 2026-06-19SHANGHAI MERCHANT SHIP DESIGN & RES INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI MERCHANT SHIP DESIGN & RES INST
Filing Date
2025-08-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the existing technology, the fire monitoring methods for pure electric vehicles in the vehicle compartment of car carriers are not intuitive or accurate, are prone to misjudgment and omission, and rely on human judgment.

Method used

By laying pipelines on the vehicle deck and using fans and infrared gas detection devices to monitor dangerous gases released by lithium batteries, combined with local and remote monitoring units, early and accurate lithium battery fault detection and alarm can be achieved.

Benefits of technology

It enables early and accurate location of thermal runaway lithium batteries, reducing the probability of false alarms and providing timely fire prediction and control.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a fire detection system for the vehicle compartment of a car carrier, comprising a data acquisition unit; a data acquisition unit connected to a data collection and detection control unit, which in turn is connected to a monitoring unit; the data collection and detection control unit includes a fan, a detection unit, and an alarm unit; the fan, detection unit, and alarm unit are connected sequentially; the data acquisition unit includes a data acquisition pipeline; a remote-controlled valve is installed on the data acquisition pipeline; the data collection and detection control unit also includes a valve control unit; and the monitoring unit includes a local monitoring unit and a remote monitoring unit. This utility model can achieve early detection of the location of thermal runaway lithium batteries; due to the proximity of the detection location to the risk point, the accuracy is high; and the probability of false alarms is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of marine technology, and in particular to a fire detection system for the vehicle compartment of an automobile transport ship. Background Technology

[0002] Because pure electric vehicles themselves pose a high risk of fire (rapid fire spread, high temperature, and difficulty in extinguishing fires), cargo owners, ship owners, shipyards, and design institutes pay close attention to fire prevention and extinguishing measures for pure electric vehicles during ship transportation.

[0003] For fire prevention measures in the vehicle hold of car carriers, the current mainstream method is to use closed-circuit television monitoring systems or thermal imaging cameras installed in the vehicles to achieve early monitoring and prevention of fires; crew members monitor for smoke or abnormal temperatures in vehicles to assess the fire situation. However, with this method, by the time abnormalities are detected, the electric vehicle may already be very hot or on fire. Therefore, this method is neither intuitive nor accurate, and it involves human judgment, making it prone to misjudgment and missed detections. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned defects in the existing technology and provide a fire detection system for the vehicle compartment of an automobile transport ship.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A fire detection system for the vehicle compartment of a car carrier includes a collection unit for collecting gas on the deck of the vehicle compartment; the collection unit is connected to a collection and detection control unit, which is connected to a monitoring unit; the collection and detection control unit includes a fan for drawing gas from the collection unit, a detection unit for detecting the gas drawn by the fan, and an alarm unit for triggering an alarm when the detection unit detects gas released from a lithium battery; the fan, detection unit, and alarm unit are connected in sequence; the collection unit includes a collection pipeline; a remote-controlled valve is installed on the collection pipeline; the collection and detection control unit also includes a valve control unit for controlling the remote-controlled valve; the monitoring unit includes a local monitoring unit and a remote monitoring unit.

[0007] Furthermore, the collection pipeline includes multiple branch pipes, each with a suction port.

[0008] Furthermore, the branch pipes are located on the vehicle cabin deck.

[0009] Furthermore, the remote-controlled valve is located at the end of the branch pipe.

[0010] Furthermore, each vehicle compartment is equipped with multiple collection and detection control units; the collection and detection control units are located on the vehicle compartment walls.

[0011] Furthermore, the distance from the detection control unit to the vehicle cabin deck is not less than 450mm.

[0012] Furthermore, the detection unit is an infrared gas detection device.

[0013] Furthermore, the monitoring unit includes an alarm signal release module and a data acquisition system control module that can control the valve control unit and the fan.

[0014] Furthermore, the local monitoring unit is connected to the collection and detection control unit, and the remote monitoring unit is connected to the local monitoring unit.

[0015] Furthermore, the monitoring unit is also connected to the ship's network system; the ship's network system is connected to the remote monitoring unit.

[0016] The beneficial effects of this invention are as follows: it can realize the early detection of the location of thermal runaway lithium batteries; because the detection location is close to the risk point, the accuracy is high; and it reduces the probability of false alarms. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the data collection pipeline in a preferred embodiment of the present invention. Detailed Implementation

[0019] The objective of this invention is to provide a timely, reliable, and accurate temperature monitoring system solution for pure electric vehicles inside the cabins of car carriers and passenger ro-ro ships.

[0020] This invention utilizes the characteristics of lithium battery fires (the battery module releases dangerous gases after a lithium battery failure). By monitoring the released gases, lithium battery failures can be predicted at an early stage, allowing for the planning and control of fires caused by lithium battery failures.

[0021] The method involves using smoke detectors and pipes installed on the vehicle's deck to collect gas samples, thereby determining whether the lithium battery is releasing hazardous gases. The pipes are laid on the deck, close to the lithium battery module of the new energy vehicle, allowing for earlier and more effective detection of released gases.

[0022] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0023] like Figure 1 , Figure 2As shown, a fire detection system for the vehicle compartment of a car carrier includes a collection unit for collecting gas on the deck of the vehicle compartment; the collection unit is connected to a collection and detection control unit 20, and the collection and detection control unit 20 is connected to a monitoring unit.

[0024] The collection and detection control unit 20 includes a fan 21 for drawing air from the collection unit, a detection unit 22 for detecting the gas drawn in by the fan, and an alarm unit 23 for triggering an alarm when the detection unit detects gas released from the lithium battery; the fan 21, the detection unit 22, and the alarm unit 23 are connected in sequence.

[0025] The data acquisition unit includes a data acquisition pipeline 10; a remote-controlled valve 12 is installed on the data acquisition pipeline 10. For example... Figure 2 As shown, the data collection pipeline includes multiple branch pipes 11, each with an intake port 13. The branch pipes 11 are located on the vehicle cabin deck 14. A remote control valve 12 is located at the end of each branch pipe 11. A blower is connected to the data collection pipeline.

[0026] The collection and detection control unit 20 also includes a valve control unit 24 for controlling the remote-controlled valve.

[0027] like Figure 1 As shown, each vehicle compartment is equipped with multiple collection and detection control units; these control units are located on the vehicle compartment walls. The distance between the collection and detection control units and the vehicle compartment deck is no less than 450mm.

[0028] The detection unit 22 is an infrared gas detection device, which includes a detection device employing non-dispersive infrared (NDIR) technology. Other gas detection devices may also be used in the detection unit.

[0029] The monitoring unit includes a local monitoring unit 31 and a remote monitoring unit 32. The local monitoring unit 31 is connected to the collection, detection, and control unit 20, and the remote monitoring unit 32 is connected to the local monitoring unit 31. The monitoring unit is also connected to a ship network system 33; the ship network system 33 is connected to the remote monitoring unit 32. The ship network system is an external system.

[0030] The monitoring unit includes an alarm signal release module and a data acquisition system control module that can control the valve control unit and the fan.

[0031] In this embodiment, the sampling unit arranges the suction inlets according to the layout position of each vehicle. The sampling unit includes a sampling pipeline, which also includes a straight pipe 15. The straight pipe is distributed along the left and right direction of the ship, and branch pipes are connected to the straight pipes. A remote control valve is installed at the end of the branch pipe to control the sampling object.

[0032] The collection and detection control unit first controls the acquisition unit by starting / stopping the intake fan, thus controlling the acquisition unit's opening and closing. This, combined with the valve control unit, controls which branch pipe to collect gas from (the acquisition control program is set by the monitoring unit). Secondly, it detects the collected gas. Finally, when lithium battery gas is detected, an alarm is triggered, and the alarm is relayed to an external monitoring unit. The number of collection and detection control units is typically divided into sections on the left and right sides of the vehicle compartment, and further divided into sections at the front and rear. The collection and detection control units are installed at least 450mm above the side walls of the vehicle compartment.

[0033] The monitoring unit is divided into local and remote monitoring units, with a human-machine interface. Its main functions are alarm signal release and acquisition system control. When an alarm is detected, the monitoring unit interface will show the specific row of suction ports on a particular deck that is alarmed. The acquisition system control includes acquisition on mode, acquisition off mode (the acquisition system in certain areas of certain decks can be turned off when no new energy vehicles are loaded), and automatic mode. In automatic mode, it can perform cyclical acquisition and detection of the entire vehicle compartment according to a pre-set acquisition frequency.

[0034] This system enables early and accurate location of thermal runaway lithium batteries, providing valuable time for subsequent fire control and extinguishing.

[0035] The purpose of this invention is to enable early, accurate and effective location positioning of shipborne new energy vehicles when lithium batteries fail.

[0036] This invention employs a smoke-collecting fire detection system to detect shipborne new energy vehicles; it uses infrared and other detection methods to identify the collected gases; the pipes are laid on the deck, close to the lithium battery modules of the new energy vehicles, enabling more effective detection of released gases; the wireless charging system is monitored and managed locally / remotely through local and remote monitoring units; through connection with the ship's network system, the ship's wireless charging system can be monitored and managed from the shore-based platform; and the entire system is managed according to the loaded vehicles within the remote and local monitoring units.

[0037] This invention enables early detection of the location of thermal runaway lithium batteries; because the detection location is close to the risk point, the accuracy is high; and the probability of false alarms is reduced.

[0038] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A fire detection system for the vehicle compartment of a car carrier, characterized in that, It includes a collection unit for collecting gas on the vehicle deck; the collection unit is connected to a collection and detection control unit, which is connected to a monitoring unit; the collection and detection control unit includes a fan for drawing gas from the collection unit, a detection unit for detecting the gas drawn by the fan, and an alarm unit for triggering an alarm when the detection unit detects gas released from a lithium battery; the fan, detection unit, and alarm unit are connected in sequence; the collection unit includes a collection pipeline; a remote-controlled valve is installed on the collection pipeline; the collection and detection control unit also includes a valve control unit for controlling the remote-controlled valve; the monitoring unit includes a local monitoring unit and a remote monitoring unit.

2. The fire detection system for vehicle compartments on automobile transport ships as described in claim 1, characterized in that, The collection pipeline consists of multiple branch pipes, each with a suction port.

3. The fire detection system for vehicle compartments on automobile transport ships as described in claim 2, characterized in that, The branch pipe is located on the vehicle cabin deck.

4. The fire detection system for vehicle compartments on automobile transport ships as described in claim 2, characterized in that, The remote-controlled valve is located at the end of the branch pipe.

5. The fire detection system for vehicle compartments on automobile transport ships as described in claim 1, characterized in that, Each vehicle compartment is equipped with multiple collection and detection control units; the collection and detection control units are located on the vehicle compartment walls.

6. The fire detection system for vehicle compartments of automobile transport ships as described in claim 5, characterized in that, The distance from the detection control unit to the vehicle cabin deck is not less than 450mm.

7. The fire detection system for vehicle compartments of automobile transport ships as described in claim 1, characterized in that, The detection unit is an infrared gas detection device.

8. The fire detection system for vehicle compartments of automobile transport ships as described in claim 1, characterized in that, The monitoring unit includes an alarm signal release module and a data acquisition system control module that can control the valve control unit and the fan.

9. The fire detection system for vehicle compartments of automobile transport ships as described in claim 1, characterized in that, The local monitoring unit is connected to the collection and detection control unit, and the remote monitoring unit is connected to the local monitoring unit.

10. The fire detection system for vehicle compartments of automobile transport ships as described in claim 9, characterized in that, The monitoring unit is also connected to the ship's network system; the ship's network system is connected to the remote monitoring unit.