Fire prevention device for new energy battery

Abstract

The invention relates to the technical field of protection devices, in particular to a new energy battery fire prevention device which comprises a detection box, a fixing frame is slidably connected to the interior of the detection box, four positioning rods are arranged on the surface of the fixing frame, and two positioning rods are fixedly connected to the surface of the fixing frame. The other two positioning rods are slidably connected to the surface of the fixing frame through springs. The battery is fixed through the fixing frame, the two detection plates are driven by the connecting plate and the positioning plate to cover the surfaces of the two sides of the battery, and in the process of carrying out experimental detection such as charging and discharging, extrusion and puncture on the battery, the sliding change switch is closed and connected through the reaction of the temperature sensor to the huge change temperature and the sliding of the detection plates; the fire extinguishing box can spray a fire extinguishing and cooling medium, fire caused by high temperature generated in the battery detection process can be effectively prevented, and the situation that the battery is bent or swelled to cause explosion and fire is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of protective devices, and particularly to a fire prevention device for new energy batteries. Background Art

[0002] New energy batteries are an important source of new energy vehicles. As a storage structure for a new type of energy, in order to ensure safety during use, corresponding tests need to be carried out on them after production. Existing tests for new energy batteries include items such as impact, charge and discharge, and puncture. When conducting experiments on lithium iron phosphate batteries that serve as the power source of automobiles, fires are extremely likely to occur. In order to ensure the safety and reliability of the experimental process, fire prevention measures need to be taken.

[0003] However, the existing fire prevention devices often have the following problems during specific operation: First, when conducting tests on batteries at present, most of the new energy batteries are fixed on the surface of a fixed structure to carry out corresponding test items. Due to the particularity of the internal materials of lithium iron phosphate batteries, some harmful gases are extremely likely to be released during the fire, such as hydrogen fluoride, carbon monoxide, etc., which will float randomly in the open test chamber and may be inhaled by the staff, causing serious impacts on the health and safety of the staff, and even endangering life safety in severe cases. It is necessary to prevent battery fires as much as possible. And because the existing fire prevention devices often only work when a clear fire occurs, or automatically work due to the high temperature emitted by the fire, the timeliness of the fire prevention device's operation is relatively poor due to the prerequisite for operation;

[0004] Second, during the process of overcharge and discharge, extrusion or puncture and other experimental tests, excessive heat may not be generated, but instead, distance explosions and fires may occur due to deformation or bulging. When a fire occurs due to an explosion, some flammable and harmful substances will splash due to the impact of the explosion, damaging other equipment in the test chamber and unable to handle it when a possible fire occurs. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the background art, and a fire prevention device for new energy batteries is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0007] A fire prevention device for new energy batteries, including a detection box, a fixed frame is slidably connected inside the detection box, a total of four positioning rods are arranged on the surface of the fixed frame, two of the positioning rods are fixedly connected to the surface of the fixed frame, and the other two positioning rods are slidably connected to the surface of the fixed frame through springs, and a clamping mechanism is arranged inside the fixed frame;

[0008] A fire extinguishing box is fixedly connected to the top of the detection box. Nozzles are communicated with both sides of the bottom of the fire extinguishing box. The nozzles are located on both sides of the top of the fixing frame. A temperature sensor is electrically connected to the bottom of the fire extinguishing box. The temperature sensor is embedded in the top of the detection box. Through holes are provided in the top of the fixing frame, and the through holes are adapted to the temperature sensor;

[0009] A positioning plate is fixedly connected inside the detection box. The positioning plate is located on one side of the fixing frame. A connecting plate is slidably connected inside the detection box, and the connecting plate is located on the other side of the fixing frame. Detection plates are slidably connected to the surfaces of the connecting plate and the positioning plate. A detection port is penetratingly provided on the surface of the detection box close to one side of the connecting plate, and the detection port penetrates through the connecting plate and the adjacent detection plate.

[0010] In the above-mentioned new energy battery fire prevention device, grooves are provided on the surfaces of the positioning plate and the connecting plate, and the grooves are adapted to the detection plates. A total of four sliding grooves are provided inside the grooves. A positioning spring is fixedly connected inside the sliding grooves. The other end of the positioning spring is fixedly connected with a connecting block. The detection plate is fixedly connected with the positioning spring through the connecting block. Slide variable switches are fixedly connected to one side of the surfaces of the positioning plate and the connecting plate. A connecting head is fixedly connected to the surface of the detection plate, and the connecting head is slidably connected to the slide variable switch. The slide variable switch is electrically connected to the fire extinguishing box through a wire.

[0011] In the above-mentioned new energy battery fire prevention device, a regulating rod is rotatably connected to one side inside the detection box. An adjusting ring is threadedly connected to the surface of the regulating rod. The adjusting ring is slidably connected to the detection box, and the adjusting ring is fixedly connected to the connecting plate. An auxiliary block is fixedly connected to the other side of the surface of the connecting plate, and the auxiliary block is slidably connected to the inside of the detection box.

[0012] In the above-mentioned new energy battery fire prevention device, positioning blocks are symmetrically and fixedly connected to both sides of the surface of the connecting plate, and the positioning blocks are slidably connected to the surface of the positioning rod.

[0013] In the above-mentioned new energy battery fire prevention device, the clamping mechanism includes a clamping plate and a pushing plate. The clamping plate is slidably connected to the surface of the fixing frame. The pushing plate is rotatably connected to the surface of the fixing frame. A positioning wheel set is rotatably connected inside the fixing frame through a belt. The clamping plate and the pushing plate are both fixedly connected to the positioning wheel set.

[0014] In the above-mentioned new energy battery fire prevention device, a waste water tank is fixedly connected to the bottom of the detection box. Leakage grooves are provided on the bottom of the detection box and on both sides of the fixing frame. The detection box is communicated with the waste water tank through the leakage grooves.

[0015] In the above-mentioned new energy battery fire prevention device, a gas pipe is connected to the top of the detection box, and the other end of the gas pipe is connected to a processing box, and a plurality of copper filter plates are fixedly connected inside the processing box.

[0016] In the above-mentioned new energy battery fire prevention device, an opening is provided on the side wall of the detection box, and the opening is slidably connected to a fixed frame. A transparent sealing plate is hinged inside the opening, and the transparent sealing plate is hinged to the surface of the detection box through a hinge.

[0017] Compared with the existing technology, the advantages of this new energy battery fire prevention device are as follows:

[0018] 1. The battery is fixed through the fixed frame and positioning plate in the detection box. The battery is subjected to experimental tests such as extrusion, puncture, overcharge and over-discharge through the detection ports on the surface of the connecting plate and the detection plate. The temperature sensor responds to the abnormal high temperature that appears, forcing the fire extinguishing box to connect the nozzle to spray the corresponding fire extinguishing and cooling medium into the interior of the detection box, ensuring that it is prevented from catching fire due to violent stress or charge and discharge, and isolating the entire experimental environment through the sealing effect of the detection box, effectively preventing the excessive dispersion of harmful gases and affecting the safety of the staff's lives;

[0019] 2. When the battery is subjected to relevant experimental tests such as extrusion and puncture on the surface through the detection port, the battery will be deformed or bulged due to force, which will squeeze the detection plate, forcing it to contract and slide inward towards the connecting plate and the positioning plate, so that the connection head is connected and closed with the slide variable switch, so that the fire extinguishing box can also spray the fire extinguishing and cooling medium through the nozzle, further preventing the battery from catching fire and avoiding dangerous accidents such as explosion;

[0020] In summary, in the process of fixing the battery by the fixed frame of the present invention, driving the two detection plates to cover the surfaces on both sides of the battery through the connecting plate and the positioning plate, and performing experimental tests such as overcharge and over-discharge, extrusion and puncture on the battery, the temperature sensor responds to the huge change in temperature, forcing the fire extinguishing box to cooperate with the nozzle to spray the corresponding fire extinguishing and cooling medium, and the sliding of the detection plate makes the slide variable switch closed and connected, so that the fire extinguishing box can also spray the fire extinguishing and cooling medium, which can effectively prevent the battery from catching fire due to high temperature generated during the detection process, and avoid the situation of explosion and fire caused by the battery being bent or bulged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is a sectional structural schematic diagram of the opening of the present invention;

[0023] Figure 3 is a sectional structural schematic diagram of the connecting plate of the present invention;

[0024] Figure 4 is a schematic cross-sectional structure diagram of the sliding variable switch of the present invention;

[0025] Figure 5 is a schematic cross-sectional structure diagram of the fixing bracket of the present invention;

[0026] Figure 6 is a schematic cross-sectional structure diagram of the detection box of the present invention;

[0027] Figure 7 is a schematic cross-sectional structure diagram of the processing box of the present invention;

[0028] Figure 8 is a schematic cross-sectional structure diagram of the fixing bracket of the present invention;

[0029] Figure 9 is of the present invention Figure 8 partial enlarged structure diagram at position A in

[0030] In the figure: 1, detection box; 2, fixing bracket; 3, positioning rod; 4, clamping mechanism; 401, clamping plate; 402, push plate; 5, fire extinguishing box; 6, nozzle; 7, temperature sensor; 8, through hole; 9, positioning plate; 10, connecting plate; 11, detection plate; 12, detection port; 13, groove; 14, sliding groove; 15, positioning spring; 16, connecting block; 17, sliding variable switch; 18, connecting head; 19, adjusting rod; 20, adjusting ring; 21, auxiliary block; 22, positioning block; 23, positioning wheel set; 24, waste water tank; 25, leakage trough; 26, air pipe; 27, processing box; 28, copper filter plate; 29, opening; 30, transparent sealing plate. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0033] Refer to Figures 1 - 9, A new energy battery fire prevention device, including a detection box 1. Inside the detection box 1, there is a fixed frame 2 slidably connected. On the surface of the fixed frame 2, a total of four positioning rods 3 are provided. Two of the positioning rods 3 are fixedly connected to the surface of the fixed frame 2, and the other two positioning rods 3 are slidably connected to the surface of the fixed frame 2 through springs. Inside the fixed frame 2, there is a clamping mechanism 4. At the top of the detection box 1, there is a fire extinguishing box 5 fixedly connected. On both sides of the bottom of the fire extinguishing box 5, there are nozzles 6 communicating. The nozzles 6 are located on both sides of the top of the fixed frame 2. At the bottom of the fire extinguishing box 5, there is a temperature sensor 7 electrically connected. The temperature sensor 7 is embedded in the top of the detection box 1. On the top of the fixed frame 2, there is a through hole 8, and the through hole 8 is adapted to the temperature sensor 7. Inside the detection box 1, there is a positioning plate 9 fixedly connected, and the positioning plate 9 is located on one side of the fixed frame 2. Inside the detection box 1, there is a connecting plate 10 slidably connected, and the connecting plate 10 is located on the other side of the fixed frame 2. On the surfaces of the connecting plate 10 and the positioning plate 9, there are detection plates 11 slidably connected. On the surface of the detection box 1 near the connecting plate 10, there is a detection port 12 penetrated, and the detection port 12 is penetrated through the connecting plate 10 and its adjacent detection plate 11.

[0034] Among them, pull out the fixed frame 2 through the opening 29, fix the new energy battery to be detected between the four positioning rods 3, and further clamp and fix it through the clamping mechanism 4. After retracting it into the detection box 1, rotate the adjusting rod 19 so that the connecting plate 10 and the positioning plate 9 drive the two detection plates 11 to contact the surfaces on both sides of the battery. Then, conduct experimental tests such as overcharging, over-discharging, extrusion, and puncture on the battery. During this process, if the battery temperature rises sharply, the temperature sensor 7 senses and detects the temperature change, and controls the fire extinguishing box 5 to cooperate with the nozzles 6 to spray a fire extinguishing and cooling medium on the battery surface to cool down the battery, which can prevent the battery from catching fire due to excessive temperature.

[0035] On one side inside the detection box 1, there is an adjusting rod 19 rotatably connected. On the surface of the adjusting rod 19, there is an adjusting ring 20 threadedly connected. The adjusting ring 20 is slidably connected to the detection box 1, and the adjusting ring 20 is fixedly connected to the connecting plate 10. On the other side of the surface of the connecting plate 10, there is an auxiliary block 21 fixedly connected. The auxiliary block 21 is slidably connected to the inside of the detection box 1. Among them, by rotating the adjusting rod 19, the connecting effect can be coordinated, so that the connecting plate 10 cooperates with the auxiliary block 21 to slide inside the detection box 1, and the connecting plate 10 drives the detection plate 11 on its surface to approach and separate from the surface of the battery, ensuring that during the detection process, the changes of the battery can be accurately sensed.

[0036] On both sides of the surface of the connecting plate 10, there are positioning blocks 22 symmetrically fixedly connected. The positioning blocks 22 are slidably connected to the surface of the positioning rod 3. Among them, by setting the positioning blocks 22, the sliding stroke of the connecting plate 10 can be limited, preventing it from sliding excessively and forcing the battery to squeeze the detection plate 11 in the initial state, which causes interference to the subsequent detection.

[0037] The clamping mechanism 4 includes a clamping plate 401 and a pushing plate 402. The clamping plate 401 is slidably connected to the surface of the fixed frame 2, and the pushing plate 402 is rotatably connected to the surface of the fixed frame 2. Inside the fixed frame 2, a positioning wheel set 23 is rotatably connected by a belt. Both the clamping plate 401 and the pushing plate 402 are fixedly connected to the positioning wheel set 23. Among them, during the process of pushing the battery into the fixed frame 2, one side of its surface will first push the clamping plate 401, which can drive the positioning wheel set 23 to rotate. Further, it can drive the pushing plate 402 to rotate from a horizontal state to a vertical state, so as to further clamp and fix the battery.

[0038] A waste water tank 24 is fixedly connected to the bottom of the detection box 1. Leakage grooves 25 are provided on both sides of the bottom of the detection box 1 and located on both sides of the fixed frame 2. The detection box 1 is communicated with the waste water tank 24 through the leakage grooves 25. Among them, the waste water tank 24 receives the fire extinguishing and cooling medium sprayed by the spray head 6 to prevent chemical substances from affecting the environment.

[0039] An air pipe 26 is communicated with the top of the detection box 1. The other end of the air pipe 26 is communicated with a processing box 27. Inside the processing box 27, a plurality of copper filter plates 28 are fixedly connected. Among them, when high temperature is generated in case of damage, some toxic gases will volatilize. The copper filter plates 28 in the processing box 27 react with such gases, which can effectively prevent the toxic gases from polluting the surrounding area and prevent inhalation.

[0040] An opening 29 is provided on the side wall of the detection box 1. The opening 29 is slidably connected to the fixed frame 2. A transparent sealing plate 30 is hinged inside the opening 29. The transparent sealing plate 30 is hinged to the surface of the detection box 1 through a hinge. Among them, the detection box 1 can be closed through the transparent sealing plate 30, and the specific working conditions of the internal battery can be conveniently observed through the transparent material.

[0041] Refer to Figures 1 - 9 , grooves 13 are provided on the surfaces of the positioning plate 9 and the connecting plate 10, and the grooves 13 are adapted to the detection plate 11. A total of four sliding grooves 14 are provided inside the grooves 13. A positioning spring 15 is fixedly connected inside the sliding grooves 14. The other end of the positioning spring 15 is fixedly connected to a connecting block 16. The detection plate 11 is fixedly connected to the positioning spring 15 through the connecting block 16. Slide variable switches 17 are fixedly connected to one side of the surfaces of the positioning plate 9 and the connecting plate 10. A connecting head 18 is fixedly connected to the surface of the detection plate 11. The connecting head 18 is slidably connected to the slide variable switch 17. The slide variable switch 17 is electrically connected to the fire extinguishing box 5 through a wire.

[0042] Among them, by detecting the surface shape of the battery through the detection plate 11 and sliding into the interior of the groove 13 in the case of deformation, thereby driving the connection head 18 to be connected and closed with the sliding variable switch 17, the fire extinguishing box 5 can be controlled to work. By spraying the battery through the nozzle 6, in the case where the battery is damaged or undergoes a huge deformation without generating high temperature, fire prevention treatment can be carried out on the battery, further improving the safety of the work.

[0043] The following makes a detailed explanation of the specific working principle and usage method of the present invention: When in use, in the first step, pull out the fixing frame 2 through the opening 29, fix the new energy battery to be detected between the four positioning rods 3, and further clamp and fix it through the clamping mechanism 4. After retracting it into the detection box 1, rotate the adjusting rod 19 so that the connecting plate 10 and the positioning plate 9 drive the two detection plates 11 to contact the surfaces on both sides of the battery, and then conduct experimental detections such as overcharging, over-discharging, extrusion, and puncture on the battery.

[0044] In the second step, during the experimental detection process, the temperature of the battery is monitored in real time through the temperature sensor 7. If the temperature rises sharply, the temperature sensor 7 controls the fire extinguishing box 5 to work, and sprays the corresponding fire extinguishing and cooling medium on the battery surface through the nozzle 6, so as to ensure that the battery will not catch fire due to excessive temperature.

[0045] In the third step, during the experimental detection process, if the battery only undergoes a huge change in surface shape but does not generate a high-temperature phenomenon, at this time, the two detection plates 11 on both sides will slide into the interior of the groove 13 due to the deformation effect of the battery itself, thereby driving the connection head 18 to enter the interior of the sliding variable switch 17, making the sliding variable switch closed, and then the fire extinguishing box 5 can be controlled to work, forcing it to spray the battery through the nozzle 6, so that the battery is isolated from the external air and effectively prevents fire.

[0046] Further explanation, the above fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or integrally formed setting, etc., which are common means well-known to those skilled in the art.

[0047] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A new energy battery fire prevention device, comprising a detection box (1), characterized in that: A fixing frame (2) is slidably connected inside the detection box (1). A total of four positioning rods (3) are arranged on the surface of the fixing frame (2). Two of the positioning rods (3) are fixedly connected to the surface of the fixing frame (2), and the other two positioning rods (3) are slidably connected to the surface of the fixing frame (2) through springs. A clamping mechanism (4) is arranged inside the fixing frame (2). A fire extinguishing box (5) is fixedly connected to the top of the detection box (1). Nozzles (6) are communicated with both sides of the bottom of the fire extinguishing box (5). The nozzles (6) are located on both sides of the top of the fixing frame (2). A temperature sensor (7) is electrically connected to the bottom of the fire extinguishing box (5). The temperature sensor (7) is embedded in the top of the detection box (1). A through hole (8) is opened on the top of the fixing frame (2), and the through hole (8) is adapted to the temperature sensor (7). A positioning plate (9) is fixedly connected inside the detection box (1). The positioning plate (9) is located on one side of the fixing frame (2). A connecting plate (10) is slidably connected inside the detection box (1), and the connecting plate (10) is located on the other side of the fixing frame (2). Detection plates (11) are slidably connected to the surfaces of the positioning plate (9) and the connecting plate (10). A detection port (12) is penetrated through the surface of the detection box (1) close to one side of the connecting plate (10), and the detection port (12) is penetrated through the connecting plate (10) and the adjacent detection plate (11).

2. The anti - fire - starting device for a new - energy battery according to claim 1, characterized in that: Grooves (13) are opened on the surfaces of the positioning plate (9) and the connecting plate (10), and the grooves (13) are adapted to the detection plates (11). A total of four sliding grooves (14) are opened inside the grooves (13). A positioning spring (15) is fixedly connected inside the sliding grooves (14). The other end of the positioning spring (15) is fixedly connected with a connecting block (16). The detection plates (11) are fixedly connected with the positioning spring (15) through the connecting blocks (16). Slide variable switches (17) are fixedly connected to one side of the surfaces of the positioning plate (9) and the connecting plate (10). A connecting head (18) is fixedly connected to the surface of the detection plate (11). The connecting head (18) is slidably connected with the slide variable switch (17). The slide variable switch (17) is electrically connected with the fire extinguishing box (5) through a wire.

3. The anti - fire - starting device for a new - energy battery according to claim 1, characterized in that: An adjusting rod (19) is rotatably connected to one side inside the detection box (1). An adjusting ring (20) is threadedly connected to the surface of the adjusting rod (19). The adjusting ring (20) is slidably connected with the detection box (1), and the adjusting ring (20) is fixedly connected with the connecting plate (10). An auxiliary block (21) is fixedly connected to the other side of the surface of the connecting plate (10). The auxiliary block (21) is slidably connected with the inside of the detection box (1).

4. The anti - fire - starting device for a new - energy battery according to claim 1, wherein: Positioning blocks (22) are symmetrically and fixedly connected to both sides of the surface of the connecting plate (10). The positioning blocks (22) are slidably connected to the surfaces of the positioning rods (3).

5. The anti - fire - starting device for a new - energy battery according to claim 1, characterized in that: The clamping mechanism (4) includes a clamping plate (401) and a pushing plate (402). The clamping plate (401) is slidably connected to the surface of the fixing frame (2), and the pushing plate (402) is rotatably connected to the surface of the fixing frame (2). A positioning wheel set (23) is rotatably connected inside the fixing frame (2) by a belt, and both the clamping plate (401) and the pushing plate (402) are fixedly connected to the positioning wheel set (23).

6. The anti - fire - starting device for a new - energy battery according to claim 1, wherein: A wastewater tank (24) is fixedly connected to the bottom of the detection box (1). Leakage grooves (25) are formed on both sides of the bottom of the detection box (1) and located on both sides of the fixing frame (2). The detection box (1) is communicated with the wastewater tank (24) through the leakage grooves (25).

7. The anti - fire - starting device for a new - energy battery according to claim 1, characterized in that: An air pipe (26) is communicated with the top of the detection box (1). The other end of the air pipe (26) is communicated with a treatment box (27). A plurality of copper filter plates (28) are fixedly connected inside the treatment box (27).

8. The anti - fire - starting device for a new - energy battery according to claim 1, characterized in that: An opening (29) is formed on the side wall of the detection box (1). The opening (29) is slidably connected to the fixing frame (2). A transparent sealing plate (30) is hinged inside the opening (29), and the transparent sealing plate (30) is hinged to the surface of the detection box (1) through a hinge.

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