Battery fire suppression filter container
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YIRAN TECHNOLOGY CO LTD
- Filing Date
- 2025-07-20
- Publication Date
- 2026-06-19
Smart Images

Figure CN224370991U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of emergency fire extinguishing equipment technology, and more specifically, it relates to a battery fire extinguishing filter container. Background Technology
[0002] With the widespread use of electronic devices, power banks, batteries, and other battery-powered electronic devices have become indispensable items for people's daily lives. However, the inherent chemical properties of batteries make them susceptible to thermal runaway during use and transportation, which may lead to deflagration.
[0003] Such deflagration accidents not only produce open flames, igniting surrounding combustibles and causing fires; more seriously, they release large amounts of toxic and harmful gases during combustion, accompanied by severe oxygen consumption. It is noteworthy that the release of toxic and harmful gases is one of the main causes of serious casualties in fire accidents. These gases can cause inhalation, rapid loss of mobility, coma, and even death from suffocation or acute poisoning. Of particular concern is the significant amplification of these risks in enclosed transportation environments such as airplanes and high-speed trains. The confined space causes the open flames, toxic and harmful gases, and oxygen consumption effects from deflagration to accumulate highly and are difficult to disperse. Even a deflagration of a single small battery can release a total amount of toxic substances and consume a significant amount of oxygen in a confined space, reaching lethal concentrations and levels, posing a serious threat to the lives of passengers and easily leading to catastrophic consequences.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a battery fire extinguishing filter container, in order to achieve a more practical purpose. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a battery fire extinguishing filter container, which is achieved by the following specific technical means:
[0006] A battery-fired extinguishing filter container includes a main body for holding fire extinguishing materials. A sealing cover is connected to the top of the main body, and a connection port is provided on the top of the sealing cover, through which a filter box is sealed. An air outlet and an air inlet are respectively provided at the upper and lower ends of the filter box. Filter cotton and fireproof cotton are respectively installed inside the air outlet and the air inlet. Activated carbon particles are filled between the filter cotton and the fireproof cotton in the filter box.
[0007] Furthermore, the main body and the sealing cover are locked together by multiple sets of fastening components; the fastening components are duckbill buckles, the buckle body of the duckbill buckle is installed on the outer side of the top of the main body, and the hook piece of the duckbill buckle is installed on the outer side of the sealing cover.
[0008] Furthermore, a sealing gasket for connecting to the main housing is installed on the bottom side of the sealing cover.
[0009] Furthermore, a mounting hole is provided on one side of the top of the sealing cap, and a pressure relief valve is installed inside the mounting hole.
[0010] Furthermore, the filter cotton is 3N11CN filter cotton.
[0011] Furthermore, a connecting pipe is provided at the air inlet at the bottom of the filter housing, and the bottom end of the connecting pipe extends into the connection port; the outer side of the connecting pipe is sealed to the connection port.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This utility model uses fire extinguishing materials inside the main chamber to directly act on the battery that has experienced thermal runaway, which can effectively suppress the open flames generated by deflagration and prevent the ignition of surrounding combustibles and the occurrence of a larger fire. At the same time, the filter chamber adopts a multi-layer composite structure (fireproof cotton, activated carbon particles, and filter cotton) to work together to strongly adsorb and filter the highly toxic and harmful gases and high-temperature smoke particles generated by combustion, which significantly reduces the risk of personnel poisoning, suffocation and fire spread.
[0014] 2. This utility model, through the coordinated design of the sealing cap, fastening components, and pressure relief valve, enables the container to have excellent airtightness and structural stability. This ensures that during the moment of deflagration and subsequent handling, high-temperature flames, toxic gases, and fumes are strictly confined inside the container and cannot escape into the external environment. At the same time, the pressure relief valve is set to release internal overpressure under the premise of ensuring safety, preventing the container from rupturing and causing secondary risks. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0017] 1. Main housing; 2. Sealing cover; 3. Filter housing; 4. Duckbill buckle; 5. Pressure relief valve;
[0018] 301. Fireproof cotton; 302. Activated carbon granules; 303. Filter cotton; 304. Connecting pipe. Detailed Implementation
[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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, and 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Example:
[0023] As attached Figure 1 As shown:
[0024] This utility model provides a battery fire extinguishing filter container, including a main box 1 for holding fire extinguishing materials. The top of the main box 1 is connected to a sealing cover 2, and the top of the sealing cover 2 is provided with a connection port, through which a filter box 3 is sealed. The upper and lower ends of the filter box 3 are respectively provided with an air outlet and an air inlet. Filter cotton 303 and fireproof cotton 301 are respectively installed inside the air outlet and the air inlet. Activated carbon particles 302 are filled between the filter cotton 303 and the fireproof cotton 301 in the filter box 3. The fire extinguishing materials in the main box 1 can quickly extinguish the open flame generated by the initial deflagration of the battery. The toxic gases and high-temperature smoke generated by the combustion are then purified through multiple stages by the filter box 3. The fireproof cotton 301 blocks residual sparks and provides preliminary heat insulation, the activated carbon particles 302 strongly adsorb highly toxic and harmful gases (such as carbon monoxide, hydrogen cyanide, etc.), and the filter cotton 303 efficiently intercepts fine smoke particles, finally releasing relatively clean gas, thereby significantly reducing the risk of fire spread and personnel poisoning and suffocation.
[0025] The main body 1 and the sealing cover 2 are locked together by multiple sets of fastening components. The fastening components are duckbill buckles 4, with the buckle body of the duckbill buckle 4 installed on the outer top of the main body 1 and the hook plate of the duckbill buckle 4 installed on the outer side of the sealing cover 2. Using duckbill buckles 4 as fastening components is convenient to operate and can provide strong and reliable locking force, ensuring that the main body 1 and the sealing cover 2 are tightly connected and do not separate under the high pressure impact at the moment of deflagration, effectively maintaining the overall airtightness and structural integrity of the container, and preventing the leakage of flames, high-temperature gases and toxic substances.
[0026] The bottom side of the sealing cover 2 is equipped with a sealing gasket for connecting with the main body 1. The sealing gasket on the bottom side of the sealing cover 2 is tightly pressed when the main body 1 and the sealing cover 2 are fastened together, forming an elastic sealing interface, which significantly enhances the airtightness of the connection between the two and effectively prevents internal flames, high-temperature gases and unpurified toxic gases from leaking from the joint.
[0027] The sealing cap 2 has an installation hole on one side of its top, and a pressure relief valve 5 is installed inside the installation hole. The installation of the pressure relief valve 5 provides critical safety redundancy for the container. When the battery explodes violently, causing the pressure inside the container to rise sharply and exceed the safety threshold, the pressure relief valve 5 will automatically open to release some of the high-pressure gas, thus avoiding secondary risks caused by structural rupture of the container body due to internal overpressure and ensuring safe use.
[0028] Among them, filter cotton 303 is 3N11CN filter cotton. Using 3N11CN filter cotton as the terminal filter layer, its excellent filtration efficiency and high temperature resistance ensure that it can effectively intercept the extremely fine particulate matter (such as combustion residue, dust, etc.) remaining in the purified gas, and provide a higher standard of clean exhaust.
[0029] The filter housing 3 has a connecting pipe 304 at its bottom air inlet, and the bottom end of the connecting pipe 304 extends into the connection port; the outer side of the connecting pipe 304 is sealed to the connection port.
[0030] The working principle of this embodiment is as follows: This utility model extinguishes fires based on the three elements of fire extinguishing: transferring combustibles, isolating oxygen, and reducing temperature. Combustibles are transferred to a container to isolate them from other combustibles. The sealed container forms an isolated space to prevent oxygen from entering, and pure water is used to cool the combustibles.
[0031] The main body 1 and sealing cap 2 of this container are made of high-strength metal, possessing explosion-proof and flame-retardant properties. Other materials can also be used. It can be manufactured in different shapes and capacities as needed, such as cylindrical, semi-circular, cubic, cuboid, and multifaceted shapes. A circular container is optimal due to varying stress levels. The main body 1, together with the sealing cap 2, forms a sealed, isolated space, isolating flammable materials from oxygen. When using, place an appropriate amount of extinguishing agent, such as water or dry powder, into the main body 1. It can also be used directly in emergencies when no extinguishing agent is available. Purified water is recommended as the primary extinguishing agent, as its non-conductive nature and excellent thermal conductivity make it the best material for extinguishing battery fires.
[0032] This container treats the toxic and harmful gases produced by battery combustion. The sealed cap 2 is equipped with a filter box 3 to filter these gases. The filter box 3 is filled with fire-retardant cotton, activated carbon, and 3N11CN filter cotton, which acts as a flame retardant and adsorbs toxic and harmful gases and substances such as methane, carbon monoxide, sulfur dioxide, hydrogen sulfide, and dust produced by battery combustion. After passing through the filter box 3, the emitted gases are harmless and smokeless, preventing panic and poisoning among personnel.
[0033] For safety reasons, battery combustion produces high-temperature, high-pressure gases. Although the container is made of high-strength metal, which has explosion-proof and flame-retardant properties, for safety reasons, it is possible that the high-pressure gas inside the container could cause secondary injury if it cannot be effectively and promptly released. Therefore, a pressure relief device (pressure relief valve 5) is installed on the sealing cap 2 of the container. When the pressure inside the container reaches a certain value, it actively releases pressure to avoid secondary injury.
[0034] When using the device, if the battery catches fire or generates high temperatures, open the sealed cap 2 of the container, add the extinguishing agent, place the burning material inside, tighten the sealed cap 2, and lock the duckbill buckle. In emergencies where water or other extinguishing agents are unavailable, it can be used directly without adding extinguishing agent. Afterward, place the container on a flat and safe surface, avoiding tipping or inverting it to prevent clogging of the filter housing 3 and pressure relief valve 5. Once in a safe area, immediately move the container to an open and safe area; if possible, spray water to cool it down. Finally, after confirming that there are no signs of combustion and no gas escaping from the container, let it stand for 2 hours before proceeding with other treatments.
[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A battery fire suppression filter container, characterized by: The system includes a main box (1) for holding fire extinguishing materials. A sealing cover (2) is connected to the top of the main box (1). A connection port is provided on the top of the sealing cover (2), and a filter box (3) is sealed and connected through the connection port. An air outlet and an air inlet are respectively provided at the upper and lower ends of the filter box (3). Filter cotton (303) and fireproof cotton (301) are respectively installed inside the air outlet and the air inlet. Activated carbon particles (302) are filled between the filter cotton (303) and the fireproof cotton (301) in the filter box (3).
2. The battery fire suppression filter vessel of claim 1, wherein: The main body (1) and the sealing cover (2) are locked together by multiple sets of fastening components; the fastening components are duckbill buckles (4), the buckle body of the duckbill buckle (4) is installed on the outer side of the top of the main body (1), and the hook piece of the duckbill buckle (4) is installed on the outer side of the sealing cover (2).
3. The battery fire suppression filter vessel of claim 1, wherein: The bottom side of the sealing cover (2) is fitted with a sealing gasket for connection with the main body (1).
4. The battery fire suppression filter vessel of claim 1, wherein: The sealing cover (2) has an installation hole on one side of its top, and a pressure relief valve (5) is installed inside the installation hole.
5. The battery fire suppression filter vessel of claim 1, wherein: The filter cotton (303) is 3N11CN filter cotton.
6. The battery fire suppression filter vessel of claim 1, wherein: The bottom air inlet of the filter box (3) is provided with a connecting pipe (304), and the bottom end of the connecting pipe (304) extends into the connecting port; the outside of the connecting pipe (304) is sealed to the connecting port.