New energy automobile fire-fighting equipment
By using a composite fire detection sensor and a dual fire extinguishing device, the problem of low accuracy in sensing and fire extinguishing efficiency in traditional fire protection systems during lithium battery thermal runaway has been solved. This enables rapid and accurate fire control and system linkage, improving the fire protection effect of fire protection equipment for new energy vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU AOYA ELECTRONICS CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional garage fire protection systems cannot accurately detect the characteristic gases such as CO/H2 released in the early stages of lithium battery thermal runaway, resulting in alarm delays; water sprinkler systems have difficulty penetrating the inside of the battery pack, and a single fire extinguishing device cannot simultaneously suppress the fire source at the bottom and the fire spreading at the top.
It adopts a composite fire detection sensor combined with lithium battery-specific fire extinguishing agent and dual fire extinguishing devices, including a horizontal fire extinguishing integrated device and a sprinkler fire extinguishing device. Through the metal shell design and fire control box, it achieves accurate sensing and zoned fire extinguishing.
It achieves rapid and precise fire control, improves fire extinguishing efficiency, reduces the risk of electrolyte reaction, and enhances impact resistance and system linkage functions.
Smart Images
Figure CN224421769U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a new energy vehicle fire protection device. Background Technology
[0002] With the increasing popularity of new energy vehicles, fires caused by lithium battery thermal runaway have become a major safety hazard. Traditional garage fire protection systems have significant shortcomings:
[0003] Ordinary temperature sensors cannot accurately detect the characteristic gases such as CO / H2 released in the early stages of thermal runaway of lithium batteries, resulting in alarm delays; water spray systems have difficulty penetrating the inside of the battery pack and may exacerbate electrolyte reactions; a single fire extinguishing device cannot simultaneously suppress fire sources at the bottom and fires spreading at the top. Utility Model Content
[0004] The main purpose of this utility model is to provide a new energy vehicle fire-fighting device, which aims to solve the technical problems that ordinary temperature sensors cannot accurately capture the characteristic gases such as CO / H2 released in the early stage of thermal runaway of lithium batteries, resulting in alarm delay; water spray systems have difficulty penetrating the battery pack and may aggravate electrolyte reaction; and single fire extinguishing devices cannot simultaneously suppress the fire source at the bottom and the fire spreading at the top.
[0005] To achieve the aforementioned objectives of this utility model, the first aspect of this utility model provides a fire-fighting device for new energy vehicles, comprising:
[0006] The fire extinguishing integrated device includes a composite fire detection sensor, a first nozzle, a first solenoid valve, and a metal casing with vents.
[0007] A lithium battery fire extinguishing agent storage tank is connected to the first nozzle of the integrated fire extinguishing device via a pipeline;
[0008] The fire alarm control box is connected to the composite fire detector sensor and the first solenoid valve via signal connection.
[0009] The spray-type fire extinguishing device includes a second solenoid valve and a second nozzle, and is connected to the lithium battery fire extinguishing agent storage tank via a pipeline.
[0010] Furthermore, the annular surface of the metal shell is a beveled structure, and the surface is evenly distributed with vent holes.
[0011] Furthermore, the composite fire detector integrates a temperature sensor and a gas concentration sensor for real-time monitoring of environmental parameters.
[0012] Furthermore, the fire alarm control panel is configured as follows:
[0013] Receives fire signals from composite fire detectors;
[0014] The first and second solenoid valves of the integrated fire extinguishing device and the sprinkler fire extinguishing device are opened.
[0015] It can trigger the external fire protection system to perform power outage and alarm operations.
[0016] Furthermore, the fire extinguishing integrated device has a horizontal structure and is installed in the bottom area of the vehicle.
[0017] Furthermore, the spray-type fire extinguishing device is installed in the top area of the vehicle, and the fire extinguishing integrated device and the spray-type fire extinguishing device form a double fire extinguishing space coverage.
[0018] Furthermore, the inclined surface of the metal shell has an angle of 15°-45°, a thickness of 2-5mm, and a vent diameter of 1-3mm.
[0019] Furthermore, the lithium battery fire extinguishing agent storage tank is filled with a lithium battery-specific fire extinguishing agent.
[0020] Furthermore, the fire alarm control box also includes a power-off module for the charging pile, a background alarm system, and the existing fire-fighting equipment in the garage.
[0021] Furthermore, both the first and second nozzles are wide-angle atomizing nozzles with a spray angle ≥120°.
[0022] Beneficial effects:
[0023] Firefighting efficiency and specificity
[0024] 1. This utility model uses a lithium battery-specific fire extinguishing agent, specifically designed for lithium battery fires, and can control the fire more quickly and effectively than water. Each parking space has an independent sensor and electromagnetic control valve, enabling zoned alarm and zoned fire suppression. It can quickly smother flames and cool the battery pack, improving efficiency compared to traditional water-based fire extinguishing methods. This fire-fighting equipment is small in size and uses economical and efficient materials. It is suitable for new installations and is also extremely convenient for replacement and retrofitting.
[0025] 2. This utility model adopts a dual fire extinguishing device. The bottom horizontal fire extinguishing integrated device combined with the top spray fire extinguishing device forms a double coverage: the bottom nozzle sprays close to the fire source to suppress the initial ignition point; the top wide-angle atomizing nozzle blocks the upward spread of the fire; when a vehicle catches fire, the horizontal fire extinguishing device is close to the fire source to control the fire in time, and the upper fire extinguishing device has a large spray area to prevent the fire from spreading. At the same time, it can also assist the original fire-fighting measures, making fire prevention and fire control more effective.
[0026] 3. This utility model can realize system linkage function, disconnect the power supply of the charging pile, link the background alarm, and link the fire-fighting equipment to extinguish the fire simultaneously.
[0027] 4. This utility model features a metal casing design. The metal casing of the horizontal fireproof device has a beveled design on all ring surfaces. Whether a pedestrian steps on the device or a vehicle runs over it, the gradual slope enhances the impact resistance and significantly reduces the rebound force. The casing is thick and has ventilation holes, which protect the internal components while ensuring air circulation so that the sensors can work normally. Attached Figure Description
[0028] Figure 1 This is a structural schematic diagram of a new energy vehicle fire-fighting equipment according to an embodiment of this utility model;
[0029] Figure 2 This is a side view of a new energy vehicle fire-fighting device according to an embodiment of the present invention;
[0030] Figure 3 This is a schematic diagram of the metal casing of a new energy vehicle fire-fighting equipment according to an embodiment of this utility model after separation;
[0031] Figure 4 This utility model relates to a new energy vehicle fire-fighting device according to an embodiment of the present invention. Figure 3 Enlarged diagram of point A in the middle.
[0032] in:
[0033] 1-Integrated fire extinguishing device; 11-Composite fire detection sensor; 12-First nozzle; 13-First solenoid valve; 14-Metal casing; 141-Ventilation hole; 2-Lithium battery extinguishing agent storage tank; 3-Fire control panel box; 4-Sprinkler-type fire extinguishing device; 41-Second solenoid valve; 42-Second nozzle.
[0034] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0035] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0039] Reference Figures 1-4 An embodiment of this utility model provides a fire-fighting device for new energy vehicles, comprising:
[0040] Fire extinguishing integrated device 1 includes a composite fire detection sensor 11, a first nozzle 12, a first solenoid valve 13, and a metal housing 14 with vent holes 141.
[0041] The lithium battery fire extinguishing agent storage tank 2 is connected to the first nozzle 12 of the integrated fire extinguishing device 1 via a pipeline;
[0042] The fire alarm control box 3 is connected to the composite fire detector 11 and the first solenoid valve 13 via signal connection.
[0043] The spray-type fire extinguishing device 4 includes a second solenoid valve 41 and a second nozzle 42, which are connected to the lithium battery fire extinguishing agent storage tank 2 via pipelines. Both the first nozzle 12 and the second nozzle 42 are wide-angle atomizing nozzles. The inclined angle of the metal casing 14 is 15°-45°, and the diameter of the vent hole 141 is 1-3mm. The lithium battery fire extinguishing agent storage tank 2 is filled with lithium battery-specific fire extinguishing agent.
[0044] The fire alarm control box 3 also includes a linkage charging pile power-off module, a background alarm system, and the original fire-fighting equipment in the garage.
[0045] In this embodiment, the integrated fire extinguishing device 1 is connected to the lithium battery fire extinguishing agent storage tank 2 via a metal pipe and is fixedly installed on the bottom of the new energy vehicle, such as in the area near the battery pack. The spray-type fire extinguishing device 4 is installed on the top of the vehicle, such as in the carport or garage ceiling, with its second nozzle 42 spraying towards the main body of the vehicle.
[0046] The fire alarm control box 3 is connected to the composite fire detector 11, the first solenoid valve 13, and the second solenoid valve 41 via cables, and integrates a linkage module to interface with external systems, such as charging piles and garage fire protection equipment. The first nozzle 12 is a wide-angle atomizing nozzle, which is controlled to open and close by the first solenoid valve 13, with the nozzle direction facing the vehicle chassis.
[0047] The lithium battery extinguishing agent storage tank 2 is filled with lithium battery-specific extinguishing agent and is connected to the integrated fire extinguishing device 1 and the spray-type fire extinguishing device 4 through pressure-resistant pipes.
[0048] The first path leads to the first nozzle 12 of the integrated fire extinguishing device 1; the second path leads to the second nozzle 42 of the sprinkler-type fire extinguishing device 4. It receives temperature / gas concentration exceedance signals transmitted by the composite fire detection sensor 11 in real time.
[0049] When fire suppression is required, the first solenoid valve 13 is triggered to open, activating the bottom fire suppression integrated device 1 to spray extinguishing agent; simultaneously, the second solenoid valve 41 is triggered to open, activating the top sprinkler fire suppression device 4 for wide-area spraying. A power-off command is sent to the charging pile to cut off the vehicle's external power supply; the background alarm system, such as audible and visual alarms and cloud platform push notifications, is activated; and the existing fire-fighting equipment in the garage, such as the roof sprinkler system, is activated.
[0050] Optionally, the annular surface of the metal shell 14 is a beveled structure, and the surface is evenly distributed with vent holes 141.
[0051] The metal outer shell 14 has an annular sloping structure with a preferred tilt angle of 30°. The surface is evenly distributed with 2mm diameter ventilation holes 141 to balance impact resistance and airflow.
[0052] The composite fire detector 11 integrates a temperature sensor and a gas concentration sensor.
[0053] The composite fire detector 11 is integrated inside the housing and includes:
[0054] Temperature sensor: Real-time monitoring of ambient temperature changes, with a threshold set at 80℃;
[0055] Gas concentration sensor: detects characteristic gases such as CO and H2 released during thermal runaway of lithium batteries.
[0056] The fire alarm control box 3 is configured as follows:
[0057] Receives fire signals from the composite fire detector sensor 11;
[0058] The first solenoid valve 13 and the second solenoid valve 41 of the integrated fire extinguishing device 1 and the sprinkler fire extinguishing device 4 are opened.
[0059] It can trigger the external fire protection system to perform power outage and alarm operations.
[0060] Optionally, the fire extinguishing integrated device 1 has a horizontal structure and is installed in the underside area of the vehicle. The fire extinguishing integrated device 1 adopts a horizontal structure to be close to the fire source.
[0061] The spray-type fire extinguishing device 4 is installed on the top area of the vehicle.
[0062] The second nozzle 42 in the sprinkler fire extinguishing device 4 is a wide-angle atomizing nozzle with a 120° spray angle and is installed at a height of 1.5–2m above the top of the vehicle to suppress the upward spread of fire.
[0063] Note: When thermal runaway of the vehicle battery causes abnormal temperature / gas concentration, the composite fire detection sensor 11 detects the fire in real time and transmits a signal to the fire alarm control box 3. The fire alarm control box 3 analyzes the signal to confirm the fire and executes the following:
[0064] Activate the audible and visual warning; open the first solenoid valve 13 and the second solenoid valve 41.
[0065] The extinguishing agent is transported from the lithium battery extinguishing agent storage tank 2 through pipelines: it is sprayed directionally at the fire source at the bottom of the vehicle through the first nozzle 12; and sprayed to cover the entire top of the vehicle through the second nozzle 42.
[0066] Synchronous linkage operations: power outage of charging pile, background alarm, and coordinated activation of garage fire protection system.
[0067] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.
Claims
1. A new energy vehicle fire-fighting equipment, characterized in that, include: The fire extinguishing integrated device (1) includes a composite fire detection sensor (11), a first nozzle (12), a first solenoid valve (13) and a metal casing (14) with vent holes (141). The lithium battery fire extinguishing agent storage tank (2) is connected to the first nozzle (12) of the fire extinguishing integrated device (1) through a pipeline. The fire alarm control box (3) is connected to the composite fire detector (11) and the first solenoid valve (13). The spray-type fire extinguishing device (4) includes a second solenoid valve (41) and a second nozzle (42), and is connected to the lithium battery fire extinguishing agent storage tank (2) via a pipeline.
2. The new energy vehicle fire fighting equipment according to claim 1, characterized in that, The metal shell (14) has a beveled surface and a uniform distribution of vent holes (141) on its surface.
3. The new energy vehicle fire-fighting equipment according to claim 1, characterized in that, The composite fire detector (11) integrates a temperature sensor and a gas concentration sensor.
4. The new energy vehicle fire-fighting equipment according to claim 1, characterized in that, The fire alarm control box (3) is configured as follows: Receives fire signals from the composite fire detection sensor (11); The first solenoid valve (13) and the second solenoid valve (41) of the integrated fire extinguishing device (1) and the spray fire extinguishing device (4) are opened; It can trigger the external fire protection system to perform power outage and alarm operations.
5. A new energy vehicle fire-fighting device according to claim 1, characterized in that, The fire extinguishing integrated device (1) is a horizontal structure and is installed in the bottom area of the vehicle.
6. A new energy vehicle fire-fighting device according to claim 1, characterized in that, The spray-type fire extinguishing device (4) is installed on the top area of the vehicle.
7. A new energy vehicle fire-fighting device according to claim 2, characterized in that, The inclined angle of the metal shell (14) is 15°-45°, and the diameter of the vent (141) is 1-3mm.
8. A new energy vehicle fire-fighting device according to claim 1, characterized in that, The lithium battery fire extinguishing agent storage tank (2) is filled with lithium battery-specific fire extinguishing agent.
9. A new energy vehicle fire-fighting device according to claim 4, characterized in that, The fire control box (3) also includes a linkage charging pile power-off module, a background alarm system and the original fire equipment in the garage.
10. A new energy vehicle fire-fighting device according to claim 1, characterized in that, Both the first nozzle (12) and the second nozzle (42) are wide-angle atomizing nozzles.