High-safety aerogel flame-retardant structure

Abstract

The utility model discloses a high-safety aerogel flame-retardant structure which comprises a heat dissipation outer box, a flame-retardant partition frame is fixedly connected in the heat dissipation outer box, five circular grooves are formed in the top face of the flame-retardant partition frame, a plurality of sealing pieces distributed up and down are arranged in the circular grooves, a plurality of air bags are embedded in the circular grooves, and the air bags are connected with the flame-retardant partition frame. The air bag is filled with first fire extinguishing fuel; the lithium battery has the beneficial effects that a plurality of lithium batteries can be separated by the flame-retardant separation frame, the heat insulation effect is good, when one lithium battery is spontaneously combusted, the normal lithium battery nearby can be prevented from being ignited, the safety is greatly improved, meanwhile, the lithium battery can generate high temperature when spontaneously combusted, a sealing film can be damaged at the moment, and the service life of the lithium battery is prolonged. The second fire extinguishing fuel is directly scattered on the lithium battery, a good fire extinguishing effect can be achieved, meanwhile, the air bag explodes due to high temperature, the first fire extinguishing fuel is fully scattered on the lithium battery, and the fire extinguishing and flame retardant effects are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery fire prevention, in particular to a highly safe aerogel flame retardant structure. Background Art

[0002] Lithium batteries are batteries that use lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. They are rechargeable and dischargeable and are widely used.

[0003] Some existing lithium battery modules are usually composed of multiple lithium battery blocks, all of which are installed in a box. When one of the lithium battery blocks spontaneously combusts (in most cases, when a lithium battery spontaneously combusts, it is a small lithium battery block with abnormal performance that spontaneously combusts), the remaining normal lithium battery blocks will be ignited, and the safety is low.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related art, the utility model proposes a highly safe aerogel flame retardant structure to overcome the above technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A highly safe aerogel flame retardant structure comprises a heat dissipation outer box, a flame retardant partition frame is fixedly connected to the heat dissipation outer box, the top surface of the flame retardant partition frame is provided with five circular grooves, a plurality of sealing sheets distributed up and down are provided in the circular grooves, a plurality of air bags are embedded in the circular grooves, the air bags are filled with a first fire extinguishing fuel, a plurality of connecting interfaces are provided on the outer wall of the flame retardant partition frame, each of the connecting interfaces is connected to the circular grooves, a second fire extinguishing fuel is filled in the connecting interfaces, and a plastic film is fixedly connected to the outer wall of the connecting interface by glue.

[0008] Preferably, the flame-retardant spacer comprises a rock wool frame, a cavity is formed in the rock wool frame, a sealing film is adhered to the inner wall of the cavity, and the interior of the cavity is filled with an aerogel layer.

[0009] Preferably, the cavity is provided with a plurality of support rods fixedly connected to the inner wall thereof.

[0010] Preferably, a plurality of placement racks are installed in the heat dissipation outer box, and the placement racks and the heat dissipation outer box are both made of aluminum alloy.

[0011] Preferably, a plurality of heat dissipation fins are provided on both the front and rear sides of the heat dissipation outer box, and each of the heat dissipation fins extends into the heat dissipation outer box.

[0012] Preferably, a plurality of pairs of circular openings are provided on both the front and rear sides of the heat dissipation outer box, the upper circular openings are air inlets, and the lower circular openings are air outlets.

[0013] The beneficial effects of the utility model are:

[0014] 1. A flame-retardant partition consisting of a rock wool frame, a cavity, a sealing film and an aerogel layer is provided to separate multiple lithium batteries and has a good heat insulation effect. When one of the lithium batteries spontaneously ignites, it can avoid igniting normal lithium batteries nearby, greatly improving safety. At the same time, the lithium battery will generate high temperature when spontaneously ignites, and the sealing film will be damaged. The second fire extinguishing fuel is directly sprinkled on the lithium battery, which can play a good fire extinguishing role. At the same time, the airbag is also exploded by the high temperature, and the first fire extinguishing fuel is fully scattered on the lithium battery, greatly improving the fire extinguishing and flame retardant effect;

[0015] 2. Setting up a placement rack, a heat dissipation outer box, heat dissipation fins and a round mouth can effectively improve the heat dissipation effect of the lithium battery and effectively reduce the probability of flame retardancy of the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic structural diagram of a highly safe aerogel flame retardant structure according to an embodiment of the utility model;

[0018] Figure 2 It is a partial top view of a flame retardant partition in a highly safe aerogel flame retardant structure according to an embodiment of the utility model;

[0019] Figure 3 It is a partial front cross-sectional view of a circular groove in a high-safety aerogel flame-retardant structure according to an embodiment of the utility model.

[0020] In the figure:

[0021] 1. Heat dissipation outer box; 2. Flame retardant partition; 3. Round groove; 5. Air bag; 6. First fire extinguishing fuel; 7. Connecting interface; 8. Second fire extinguishing fuel; 9. Plastic film; 10. Rock wool frame; 11. Cavity; 12. Sealing film; 13. Aerogel layer; 14. Support rod; 15. Placement rack; 16. Heat dissipation fins; 17. Round mouth. DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] According to an embodiment of the utility model, a highly safe aerogel flame retardant structure is provided.

[0024] Embodiment 1;

[0025] like Figure 1-3 As shown, according to the high-safety aerogel flame retardant structure of the embodiment of the utility model, it includes a heat dissipation outer box 1, a flame retardant partition frame 2 is fixedly connected inside the heat dissipation outer box 1, five circular grooves 3 are provided on the top surface of the flame retardant partition frame 2, which can play a positioning role, facilitate the sealing and fixed connection of the cover plate, and also facilitate the storage of the airbag 5, a plurality of sealing sheets distributed up and down are provided in the circular groove 3, the circular groove 3 can be divided into a plurality of cavities, the airbags 5 are distributed in different cavities, and each connecting interface 7 is correspondingly connected to a different cavity, a plurality of airbags 5 are inlaid in the circular groove 3, the airbags 5 are filled with a first fire extinguishing fuel 6, a plurality of connecting interfaces 7 are provided on the outer wall of the flame retardant partition frame 2, each connecting interface 7 is connected to the circular groove 3, the connecting interface 7 is filled with a second fire extinguishing fuel 8, a plastic film 9 is fixedly connected to the outer wall of the connecting interface 7 by glue, the sealing is good, and it will be damaged when encountering high temperature, so that the second fire extinguishing fuel 8 and the first fire extinguishing fuel 6 can be discharged.

[0026] Embodiment 2:

[0027] like Figure 1-3 As shown, according to the high-safety aerogel flame-retardant structure of the embodiment of the utility model, the flame-retardant partition 2 includes a rock wool frame 10, a cavity 11 is opened in the rock wool frame 10, a sealing film 12 is adhered to the inner wall of the cavity 11, and the interior of the cavity 11 is filled with an aerogel layer 13, which has good heat insulation and flame-retardant effects, and a plurality of support rods 14 fixedly connected to the inner wall of the cavity 11 are provided in the cavity 11, which can improve the strength of the entire flame-retardant partition 2.

[0028] Embodiment three;

[0029] like Figure 1-3As shown, according to the high-safety aerogel flame-retardant structure of the embodiment of the utility model, a plurality of placement racks 15 are installed in the heat dissipation outer box 1, the placement racks 15 and the heat dissipation outer box 1 are both made of aluminum alloy, and have good heat dissipation effect, a plurality of heat dissipation fins 16 are arranged on the front and rear sides of the heat dissipation outer box 1, and each heat dissipation fin 16 extends into the heat dissipation outer box 1, and has good heat dissipation effect, a plurality of pairs of circular openings 17 are arranged on the front and rear sides of the heat dissipation outer box 1, the upper circular opening 17 is the air inlet, and the lower circular opening 17 is the air outlet, the upper circular opening 17 is connected to the air inlet pipe, and the lower circular opening 17 is connected to the air outlet pipe, which can play a good ventilation and heat dissipation role.

[0030] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0031] Under normal circumstances, the lithium battery is placed on the placement rack 15, and the flame retardant partition 2 separates multiple lithium batteries. The upper circular opening 17 is connected to the air inlet pipe, and the lower circular opening 17 is connected to the air outlet pipe. The lithium battery is in an environment with smooth air flow, and with the heat dissipation fins 16 with good heat dissipation effect, the heat dissipation effect of the lithium battery can be effectively improved, and the flame retardancy probability of the lithium battery can be effectively reduced. When one of the lithium batteries spontaneously combusts, it can avoid igniting normal lithium batteries nearby, and the safety is greatly improved. At the same time, the lithium battery will generate high temperature when spontaneous combustion occurs, and the sealing film 12 will be damaged. The second fire extinguishing fuel 8 is directly sprinkled on the lithium battery, which can play a good fire extinguishing role. At the same time, the airbag 5 is also exploded by the high temperature, and the first fire extinguishing fuel 6 is fully scattered on the lithium battery, and the fire extinguishing and flame retardant effect is greatly improved.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly safe aerogel flame retardant structure, characterized in that: The invention comprises a heat dissipation outer box (1), wherein a flame retardant partition frame (2) is fixedly connected to the heat dissipation outer box (1), the top surface of the flame retardant partition frame (2) is provided with five circular grooves (3), the circular grooves (3) are provided with a plurality of sealing sheets distributed up and down, the circular grooves (3) are inlaid with a plurality of air bags (5), the air bags (5) are filled with a first fire extinguishing fuel (6), the outer wall of the flame retardant partition frame (2) is provided with a plurality of connecting interfaces (7), each of the connecting interfaces (7) is connected to the circular groove (3), the connecting interfaces (7) are filled with a second fire extinguishing fuel (8), and the outer wall of the connecting interface (7) is fixedly connected with a plastic film (9) by glue.

2. A highly safe aerogel flame retardant structure according to claim 1, characterized in that: The flame retardant partition (2) comprises a rock wool frame (10), a cavity (11) is provided in the rock wool frame (10), a sealing film (12) is adhered to the inner wall of the cavity (11), and the interior of the cavity (11) is filled with an aerogel layer (13).

3. A highly safe aerogel flame retardant structure according to claim 2, characterized in that: A plurality of support rods (14) fixedly connected to the inner wall of the cavity (11) are arranged in the cavity (11).

4. The highly safe aerogel flame retardant structure according to claim 1, characterized in that: A plurality of placement racks (15) are installed in the heat dissipation outer box (1); the placement racks (15) and the heat dissipation outer box (1) are both made of aluminum alloy.

5. The highly safe aerogel flame retardant structure according to claim 1, characterized in that: A plurality of heat dissipation fins (16) are provided on both the front and rear sides of the heat dissipation outer box (1), and each of the heat dissipation fins (16) extends into the heat dissipation outer box (1).

6. The highly safe aerogel flame retardant structure according to claim 1, characterized in that: The heat dissipation outer box (1) is provided with a plurality of pairs of circular openings (17) on both the front and rear sides, the upper circular openings (17) being air inlets, and the lower circular openings (17) being air outlets.

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