Movable charging pile fire extinguishing system

Abstract

The utility model relates to a movable charging pile fire extinguishing system, and belongs to the technical field of fire extinguishing devices. Comprising a charging pile end fire fighting unit arranged in the mobile charging pile and used for fire detection and fire extinguishing of the mobile charging pile; comprising a composite detector; the thermosensitive wire is arranged along a battery module and a circuit in the mobile charging pile, and the charging pile fire extinguishing device is communicated with the interior of the mobile charging pile through a charging pile fire extinguishing device nozzle; the station end fire fighting unit is arranged in the charging station; comprising a pump set type fire extinguishing system connected with a plurality of sprayers through pipelines; the multi-type detector combination is arranged in the charging station for detection; the pump set type fire extinguishing system is electrically connected with the multi-type detector combination; and the Internet of Things monitoring terminal is in communication connection with the charging pile end fire-fighting unit and the station end fire-fighting unit. Through the multi-layer collaborative design of'equipment-level protection-station-level protection-remote supervision ', the problems that fire safety facilities of an existing mobile charging pile and charging station are lacked, early warning is lagged, and fire extinguishing measures are insufficient are effectively solved.

Description

Mobile charging pile fire extinguishing system Technical Field

[0001] This utility model relates to a mobile charging pile fire extinguishing system, belonging to the technical field of fire extinguishing devices. Background Technology

[0002] With the continuous improvement of electric vehicle technology, the charging infrastructure industry has also experienced rapid development. However, the current expansion speed of charging infrastructure construction still lags behind the development speed of new energy vehicles, and there is still a significant gap in the charging capacity of electric vehicles. Issues such as queuing for charging and gasoline vehicles occupying charging spots occur frequently at charging stations. With the development of mobile charging piles, unmanned supervision is believed to be a future trend. However, the risks that come with this are unavoidable. During the process of mobile charging piles discharging electric vehicles and returning to charging stations, the possibility of fires in the battery and management system remains. Furthermore, with the frequent use and aging of batteries, it becomes increasingly difficult to control fire safety issues. This necessitates a superior battery monitoring platform and effective measures in place to address fires caused by battery thermal runaway.

[0003] Mobile charging stations can provide power to electric vehicles anytime, anywhere, eliminating the need to find fixed charging piles or stations. This high degree of flexibility and adaptability makes mobile charging equipment highly competitive in various scenarios. However, as a new industry, there are currently no relevant fire safety design and acceptance standards for mobile charging stations. Manufacturers lack supporting fire safety facilities, and management units do not pay enough attention to subsequent fire safety management. Therefore, there are no relevant fire safety plans after they are put into use. Given these safety hazards, they could potentially harm vehicles and people; if this occurs in densely populated areas, the consequences could be disastrous. For example, the prior art patent announcement number CN209221377U discloses a fire protection system for charging piles in an open environment, including a camera, a fire extinguishing projectile launcher, and a main unit. The camera and the fire extinguishing projectile launcher are connected to the main unit. The camera and the fire extinguishing projectile launcher are located near the charging pile, enabling the camera to capture images of the charging pile and the charging equipment, and ensuring that the fire extinguishing projectiles launched by the fire extinguishing projectile launcher reach both the charging pile and the charging equipment. The use of single-parameter detectors makes it impossible to respond quickly in the early stages of a fire. Mobile charging piles and charging stations lack fire safety facilities, have delayed early warnings, and lack sufficient fire-fighting measures. Summary of the Invention

[0004] The purpose of this utility model is to propose a mobile charging pile fire extinguishing system, which effectively solves the problems of lack of fire safety facilities, delayed early warning and insufficient fire extinguishing measures in existing mobile charging piles and charging stations through a multi-layer collaborative design of "equipment-level protection-station-remote monitoring".

[0005] The mobile charging pile fire extinguishing system of this utility model includes:

[0006] A fire-fighting unit at the charging pile end, installed inside the mobile charging pile, is used for fire detection and extinguishing of fires within the mobile charging pile; it includes:

[0007] The composite detector is installed in the battery compartment and electrical compartment of the mobile charging station;

[0008] The thermal wire is arranged along the battery module and wiring inside the mobile charging pile for open flame detection;

[0009] The charging pile fire extinguishing device has a built-in fire extinguishing agent and is connected to the inside of the mobile charging pile through the nozzle of the charging pile fire extinguishing device.

[0010] The station-end fire protection unit, located inside the charging station, is used for the overall fire protection of the charging station; it includes:

[0011] Pump-type fire extinguishing systems connect multiple nozzles via pipelines and contain built-in extinguishing agents.

[0012] A combination of multiple types of detectors is deployed within the charging station for detection.

[0013] An audible and visual alarm is connected in combination with the aforementioned multi-type detectors;

[0014] The pump-type fire extinguishing system is electrically connected to multiple types of detectors.

[0015] The IoT monitoring terminal is communicatively connected to the fire protection unit at the charging pile end and the fire protection unit at the station end, and is used for remote monitoring, early warning and control.

[0016] Preferably, the station-end fire protection unit also includes a fire hose reel, which is connected to the extinguishing agent container of the pump-type fire extinguishing system.

[0017] Preferably, the station-end fire protection unit also includes an alternative protection component, which is a suspended fire extinguishing device that is automatically activated by a temperature-sensing glass bulb and contains a lithium battery-specific fire extinguishing agent.

[0018] Preferably, the composite detector includes a temperature sensor, a smoke sensor, a CO sensor, and a VOC gas sensor, which are arranged in the battery compartment and electrical compartment of the mobile charging pile.

[0019] Preferably, the combination of multiple detector types includes a heat-sensing cable, a smoke detector, and an image-type flame camera.

[0020] Preferably, the composite detector is connected to the IoT monitoring terminal via a CAN bus and sends an early warning signal to the IoT monitoring terminal.

[0021] Preferably, the fire extinguishing device for the charging pile is a non-pressurized structure, and the nozzles of the fire extinguishing device for the charging pile are evenly distributed in the battery compartment and electrical compartment of the mobile charging pile.

[0022] Preferably, the pump-type fire extinguishing system includes a cabinet, and a manual start button is provided outside the cabinet.

[0023] The mobile charging pile fire extinguishing system of this utility model has the following beneficial effects:

[0024] 1. Improve the accuracy and reliability of fire prevention and control for charging piles.

[0025] The fire protection unit at the charging pile end adopts a dual detection structure of composite detector and thermal wire. Compared with single-parameter detector, it can significantly reduce the false alarm rate. At the same time, the direct response of the thermal wire to open flames ensures rapid response in the early stage of a fire.

[0026] The fire extinguishing device for charging piles adopts a non-pressurized structure, which avoids the maintenance costs of traditional pressurized fire extinguishers that require regular pressure checks and refilling of extinguishing agents. It is suitable for unattended and high-frequency mobile charging pile usage scenarios, ensuring the long-term effectiveness of fire protection facilities.

[0027] 2. Enhance the flexibility and adaptability of overall fire protection for charging stations.

[0028] The station-end fire protection unit adopts a "multi-detector combination triggering" mechanism, which not only avoids system false start-up caused by the malfunction of a single detector, but also ensures rapid response under real fire conditions and improves system reliability.

[0029] The design of the pump-type fire extinguishing system and the fire hose reel takes into account both the needs of full-station fire extinguishing (pump-type system) and localized precise fire extinguishing (fire hose reel point spray); while the alternative configuration of the suspended fire extinguishing device (suitable for installation space-constrained scenarios) further expands the application range of the device and meets the installation conditions of different charging stations.

[0030] 3. Achieve intelligent and efficient fire safety management.

[0031] The IoT monitoring terminal provides real-time monitoring via both PC and WeChat mini-program platforms. Maintenance personnel can remotely view the location of charging piles, battery status, detector data, and the operating status of charging station equipment without the need for on-site inspections, thus reducing labor costs. It also helps prevent the spread of fires and significantly reduces the risk of personal injury and property damage. Attached Figure Description

[0032] Figure 1: Architecture diagram of the system of this utility model;

[0033] Figure 2: Structural diagram of the system of this utility model;

[0034] Figure 3: Schematic diagram of the mobile charging pile in this utility model;

[0035] Figure 4: Schematic diagram of the structure of the mobile charging pile fire extinguishing device in this utility model;

[0036] In the diagram: 1. Fire hose reel; 2. Pump-type fire extinguishing system; 3. Heat-sensing cable; 4. Pipeline; 5. Smoke detector; 6. Sprinkler head; 7. Suspended fire extinguishing device; 8. Image-type flame camera; 9. Audible and visual alarm; 10. Mobile charging pile; 11. Charging station; 12. Sprinkler head of charging pile fire extinguishing device; 13. Composite detector; 14. Thermal wire; 15. Charging pile fire extinguishing device. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0038] Example 1:

[0039] As shown in Figures 1-4, the mobile charging pile fire extinguishing system of this utility model includes:

[0040] A fire-fighting unit at the charging pile end, installed inside the mobile charging pile 10, is used for fire detection and extinguishing of the mobile charging pile 10; including:

[0041] The composite detector 13 is installed in the battery compartment and electrical compartment of the mobile charging pile 10;

[0042] The thermal wire 14 is arranged along the internal battery module and wiring of the mobile charging pile 10 for open flame detection.

[0043] The charging pile fire extinguishing device 15 has a built-in fire extinguishing agent and is connected to the inside of the mobile charging pile 10 through the charging pile fire extinguishing device nozzle 12.

[0044] A station-end fire protection unit, located inside charging station 11, is used for the overall fire protection of charging station 11; it includes:

[0045] The pump-type fire extinguishing system 2 is connected to multiple nozzles 6 via pipes 4 and contains fire extinguishing agent;

[0046] A combination of multiple types of detectors is deployed within charging station 11 for detection;

[0047] The audible and visual alarm 9 is connected to multiple types of detectors via combined signal connections.

[0048] The pump-type fire extinguishing system 2 is electrically connected to a combination of multiple types of detectors;

[0049] The IoT monitoring terminal communicates with the fire protection unit at the charging pile end and the fire protection unit at the station end, and is used for remote monitoring, early warning and control.

[0050] The station-end fire protection unit also includes a fire hose reel 1, which is connected to the extinguishing agent container of the pump-type fire extinguishing system 2.

[0051] The station-end fire protection unit also includes an alternative protection component, which is a suspended fire extinguishing device 7 that is automatically activated by a temperature-sensing glass bulb and contains a lithium battery-specific fire extinguishing agent.

[0052] The composite detector 13 includes a temperature sensor, a smoke sensor, a CO sensor, and a VOC gas sensor, and is arranged in the battery compartment and electrical compartment of the mobile charging pile 10.

[0053] The multi-type detector combination includes a heat-sensing cable 3, a smoke detector 5, and an image-type flame camera 8.

[0054] The fire protection unit at the charging pile end also includes a composite detector 13 electrically connected to the charging pile fire extinguishing device 15; and a thermal wire 14 internally connected to the charging pile fire extinguishing device 15.

[0055] The composite detector 13 is a product in the prior art, model BJ-FD-22. It has a built-in processor and connects to the Internet of Things (IoT) monitoring terminal via a CAN bus to send early warning signals to the IoT monitoring terminal.

[0056] The fire extinguishing device for the charging pile is a non-pressurized structure, and the nozzles 12 of the fire extinguishing device for the charging pile are evenly distributed in the battery compartment and electrical compartment of the mobile charging pile 10.

[0057] In the fire protection unit at the charging pile end, the composite detector collects data such as temperature and CO concentration in real time and uploads it to the Internet of Things platform via CAN bus; the thermal wire 14 is arranged along the battery module bus. When the local temperature rises to 200℃ (initial open flame), it directly triggers the fire extinguishing device to release perfluorohexanone fire extinguishing agent to cover the battery compartment.

[0058] In the station-end fire protection unit, when the temperature sensing cable or the image-type flame camera is triggered, the pump-type fire extinguishing system is activated and fire extinguishing agent is sprayed throughout the station through the pipeline; if the fire is small, the operator can pull out the fire hose reel to spray individual charging piles.

[0059] The IoT monitoring terminal pushes early warning information to maintenance personnel, who can remotely view the camera footage and manually activate the fire extinguishing device after confirmation, thus realizing closed-loop management of "early warning-confirmation-response".

[0060] During operation, the charging pile fire extinguishing device 15 is maintenance-free (non-pressurized), and does not require routine checks on pressure, extinguishing agent, etc. The extinguishing agent used is a lithium battery-specific extinguishing agent. In the early stage of a fire inside the mobile charging pile 10, when the composite detector 13 detects relevant signals, it will send an early warning signal through the CAN bus and the Internet platform. When the composite detector 13 detects the relevant signals at the preset threshold or the thermal wire detects open flames, the charging pile fire extinguishing device 15 will be activated to begin extinguishing the fire.

[0061] The pump-type fire extinguishing system 2 uses a pump to spray the lithium battery-specific fire extinguishing agent from the container. The system is powered by a 220V power supply. The pump-type fire extinguishing system 2 has three detection functions: a heat-sensing cable, a smoke detector, and an image-type flame camera. The image-type flame camera has a daily viewing and monitoring function. The audible and visual alarm 9 will emit both audible and visual alarms when a fire alarm signal is confirmed.

[0062] When a fire occurs in the mobile charging pile or other equipment within the charging station, in addition to the automatic activation mentioned above, the start button outside the cabinet of the pump-type fire extinguishing system 2 can also be pressed to manually activate it. The pump-type fire extinguishing system 2 has an external fire hose reel, which operators can also pull out to extinguish a localized or specific point of fire in the charging station 11. In some areas or locations where installation conditions make it inconvenient to install the pump-type fire extinguishing system 2, the suspended fire extinguishing device 7 can be used instead, which automatically activates through its built-in temperature-sensing glass bulb.

[0063] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mobile charging pile fire extinguishing system, characterized in that, include: The charging pile end fire protection unit is installed inside the mobile charging pile (10) and is used for fire detection and extinguishing of the mobile charging pile (10); it includes: a composite detector (13) arranged in the battery compartment and electrical compartment of the mobile charging pile (10); a thermal wire (14) arranged along the battery module and wiring inside the mobile charging pile (10) for open flame detection; a charging pile fire extinguishing device (15) with built-in fire extinguishing agent, which is connected to the inside of the mobile charging pile (10) through the nozzle (12) of the charging pile fire extinguishing device; and a station end fire protection unit, which is installed inside the charging pile. Inside the station (11), for overall fire protection of the charging station (11); including: a pump-type fire extinguishing system (2), which is connected to multiple nozzles (6) through pipes (4) and contains fire extinguishing agent; a combination of multiple types of detectors, which is arranged inside the charging station (11) for detection; an audible and visual alarm (9), which is signal-connected to the combination of multiple types of detectors; the pump-type fire extinguishing system (2) is electrically connected to the combination of multiple types of detectors; and an Internet of Things monitoring terminal, which is communicatively connected to the fire protection unit at the charging pile end and the fire protection unit at the station end, for remote monitoring, early warning and control.

2. The mobile charging pile fire extinguishing system according to claim 1, characterized in that, The station-end fire protection unit also includes a fire hose reel (1), which is connected to the extinguishing agent container of the pump-type fire extinguishing system (2).

3. The mobile charging pile fire extinguishing system according to claim 1, characterized in that, The station-end fire protection unit also includes an alternative protection component, which is a suspended fire extinguishing device (7) that is automatically activated by a temperature-sensing glass bulb and contains a lithium battery-specific fire extinguishing agent.

4. The mobile charging pile fire extinguishing system according to claim 1, characterized in that, The composite detector (13) includes a temperature sensor, a smoke sensor, a CO sensor and a VOC gas sensor, which are arranged in the battery compartment and electrical compartment of the mobile charging pile (10).

5. The mobile charging pile fire extinguishing system according to claim 1, characterized in that, The multi-type detector combination includes a heat-sensing cable (3), a smoke detector (5), and an image-type flame camera (8).

6. The mobile charging pile fire extinguishing system according to claim 1, characterized in that, The composite detector (13) is connected to the Internet of Things (IoT) monitoring terminal via a CAN bus and sends an early warning signal to the IoT monitoring terminal.

7. The mobile charging pile fire extinguishing system according to claim 1, characterized in that, The fire extinguishing device for the charging pile is a non-pressurized structure, and the nozzles (12) of the fire extinguishing device for the charging pile are evenly distributed in the battery compartment and electrical compartment of the mobile charging pile (10).

8. The mobile charging pile fire extinguishing system according to claim 1, characterized in that, The pump-type fire extinguishing system (2) includes a cabinet, and a manual start button is provided outside the cabinet.

Images