Battery disaster prevention system

Abstract

The utility model provides a kind of battery disaster prevention system, it mainly includes: at least one battery core module is had in the inside of a battery box one box body, the upper side of at least one battery core module has at least one sensor;Upper cover is covered in the upper side of box body, the inside of upper cover has at least one long pipe, at least one long pipe has at least one first connector in one end, and at least one long pipe has multiple injection ports, multiple injection ports are correspondingly set in the upper side of at least one battery core module;Fire extinguishing control unit is electrically connected at least one sensor, and the at least one second connector of fire extinguishing control unit is correspondingly connected at least one first connector, by this, it can be sensed high temperature or smoke by at least one sensor, and automatically open a valve, let fire extinguishing agent enter battery box inside, then multiple injection ports are sprayed downward to carry out fire extinguishing.

Description

Technical Field

[0001] This utility model relates to a battery fire prevention system, specifically a system that, upon sensing high temperature or smoke inside the battery box, can deliver fire extinguishing agent from outside the battery box to the battery box and automatically spray the fire extinguishing agent to extinguish the fire in real time. Background Technology

[0002] Currently used battery boxes primarily consist of multiple battery cells connected in parallel or series inside a box. The outside of the box has a positive electrode post and a negative electrode post, which, after being connected to conductive terminals, output a fixed current or voltage. When multiple battery boxes are assembled vertically or horizontally into an energy storage system, they can provide sufficient DC power to electric vehicles or large machinery. However, because the battery cells are electrochemically synthesized, prolonged use can cause the temperature inside the battery box to rise, affecting performance and lifespan. Furthermore, when a lithium battery cell experiences thermal runaway and catches fire due to a short circuit, it will produce high temperatures or smoke. Currently, the common fire extinguishing method involves placing a fire extinguisher around the battery box, manually opening it, and then spraying extinguishing agent to put out the fire.

[0003] However, multiple battery cells are arranged in parallel or series inside the casing. When a lithium battery cell catches fire due to a short circuit and generates high temperature, the fire extinguisher outside the battery box cannot directly extinguish the fire at the ignition point of the battery cell. Instead, it can only spray the extinguishing agent on the outer surface of the casing and wait for the multiple battery cells to burn out. As a result, not only is the fire extinguishing effect poor, but it is also impossible to extinguish the flames immediately when the lithium battery cell starts to catch fire to prevent further spread of the fire. There is also a risk that all the battery cells will be completely burned, and the fire will further spread to mobile equipment such as electric vehicles or fixed equipment such as battery cabinets. Utility Model Content

[0004] In view of this, in order to differentiate itself from the structure of conventional technology and improve the above-mentioned shortcomings, the purpose of this utility model is to provide a battery fire prevention system that can solve the problem that conventional fire extinguishers can only spray extinguishing agents manually onto the outer surface of the battery box, which is ineffective in extinguishing fires and cannot extinguish the flames inside the battery box in real time, thus preventing all battery cells from being completely burned or the fire from spreading. Instead, it can be achieved by positioning at least one long pipe and at least one sensor above at least one battery cell module. The at least one long pipe has a plurality of spray nozzles, and the long pipe and the sensor are each part of a fire extinguishing control unit. When the sensor detects high temperature or smoke inside the battery box, a valve is automatically opened to allow the extinguishing agent outside the battery box to be delivered into the battery box and then sprayed onto the battery cell module through the plurality of spray nozzles, covering and extinguishing the flames in real time, thus ensuring safe use.

[0005] To achieve the aforementioned objectives, this utility model provides a battery-based disaster prevention system, primarily comprising at least one battery box and a fire extinguishing control unit. The battery box includes a housing and a top cover. The housing has a plurality of side panels that enclose a lower space. Within the lower space are at least one battery cell module arranged side-by-side, and above each battery cell module is at least one sensor. The top cover covers the top of the housing, and its interior has an upper space containing at least one long pipe. One end of the long pipe has at least one first connector, and the long pipe has a plurality of spray nozzles correspondingly positioned above each battery cell module. The fire extinguishing control unit is electrically connected to at least one sensor. The fire extinguishing control unit includes at least one second connector, a valve, and a fire extinguisher. The at least one second connector is correspondingly connected to at least one first connector, and the valve is connected to both the at least one second connector and the fire extinguisher. The at least one sensor senses high temperature to open the valve, allowing the extinguishing agent in the fire extinguisher to be sprayed downwards through the plurality of spray nozzles.

[0006] In implementation, the plurality of side panels include a front side panel, a left side panel, a rear side panel and a right side panel, which together frame the lower space; any battery cell module includes a plurality of battery cells arranged in parallel, each of the plurality of battery cells having a pressure relief port on its top surface, and a plurality of injection ports correspondingly arranged above the plurality of pressure relief ports.

[0007] In practice, the cover includes a cover body and a fixing member. The interior of the cover body has an upper space for accommodating at least one long pipe. The fixing member connects to the cover body and is used to position at least one long pipe.

[0008] In practice, the upper space of the cover has a plurality of long tubes arranged in parallel and at intervals, each of the long tubes having a plurality of spray nozzles arranged at intervals along the long axis; the fixing member includes at least one pressure strip, which is connected to the cover body for positioning the plurality of long tubes.

[0009] In practice, this utility model further includes a cooling component and a cooling control unit. The cooling component is housed and positioned in the upper space of the top cover and is correspondingly positioned directly above at least one battery cell module. The cooling control unit is connected to the cooling component to control the temperature in the lower space of the housing.

[0010] In implementation, the refrigeration component includes a continuous curved tube having a plurality of long tube sections, a water inlet end, and a water outlet end. The plurality of long tube sections are arranged in parallel and correspondingly positioned above at least one battery cell module. The water inlet end, the water outlet end, and at least one first connector extend out of one side of the top cover. The water inlet end and the water outlet end are respectively connected to a cooling control unit, which supplies coolant by inputting it through the water inlet end and outputting it through the water outlet end, thereby controlling the temperature in the lower space of the housing.

[0011] In practice, the upper space of the cover has a plurality of long pipes arranged in parallel and at intervals, with the plurality of long pipes parallel to the plurality of long pipes and the plurality of long pipes staggered between the plurality of long pipes.

[0012] In practice, the cover includes a cover body and a fixing member. The interior of the cover body has an upper space for accommodating a plurality of long pipe fittings and a plurality of long pipe sections. The fixing member connects to the cover body and is used to position the plurality of long pipe fittings and a plurality of long pipe sections.

[0013] In practice, the fastener includes at least one pressure strip and an insulating plate. The pressure strip is connected to the cover for positioning a plurality of long pipe fittings and a plurality of long pipe sections. The insulating plate is positioned below the pressure strip and has a plurality of perforations on its surface for allowing downwardly sprayed extinguishing agents to pass through.

[0014] The advantages of this invention are that when any sensor detects high temperature or smoke, it can automatically open the valve to allow the extinguishing agent in the fire extinguisher outside the battery box to enter the battery box, and then spray it onto the burning battery cell through multiple nozzles to cover and extinguish the flames in real time, thereby ensuring safety in use; furthermore, by installing a continuous curved pipe of a cooling element above multiple battery cell modules and controlling the speed of cooling water flow with a variable frequency motor, the temperature of the space above the battery cell modules can be kept within a predetermined range, thereby stabilizing the battery cell's range and extending its service life.

[0015] To facilitate a deeper understanding of this utility model, it is described in detail below. Attached Figure Description

[0016] Figure 1 This is a perspective view of the battery cabinet according to a preferred embodiment of the present invention.

[0017] Figure 2 This is a plan view of a preferred embodiment of the present invention.

[0018] Figure 3 This is a perspective view of the battery box according to a preferred embodiment of the present invention.

[0019] Figure 4 This is an exploded view of the battery box components according to a preferred embodiment of the present invention.

[0020] Figure 5 This is an exploded view of the upper cover components of a preferred embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram illustrating the usage state of a preferred embodiment of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1-Battery disaster prevention system; 2-Battery box; 21-Box body; 211-Front side panel; 212-Left side panel; 213-Rear side panel; 214-Right side panel; 215-Lower space; 216-Battery cell module; 217-Battery cell; 218-Pressure relief port; 219-Sensor; 22-Top cover; 221-Cover body; 222-Stabilizer; 223-First positioning hole; 224-Second positioning hole; 225-Third positioning hole; 226- Upper space; 227-Pressure strip; 228-Insulation board; 229-Perforation; 220-Ventilation hole; 3-Fire extinguishing control unit; 31-Second connector; 32-Valve; 33-Fire extinguisher; 4-Cooling control unit; 41-Variable frequency motor; 5-Long pipe fitting; 51-Spray nozzle; 52-First connector; 6-Refrigeration component; 61-Continuous bend; 62-Water inlet; 63-Water outlet; 64-Long pipe section; 65-Bend section; 66-Long space; 9-Battery cabinet. Detailed Implementation

[0023] This utility model provides a battery-based fire prevention system, mainly comprising at least one battery box and a fire extinguishing control unit. The battery box includes a box body and a top cover. A plurality of side panels of the box body form a lower space, within which at least one battery cell module is arranged side by side. Above each battery cell module is at least one sensor. The top cover closes to the top of the box body, and the interior of the top cover has an upper space containing at least one long pipe. One end of the long pipe has at least one first connector, and the long pipe has a plurality of spray nozzles, which are correspondingly positioned above each battery cell module. The fire extinguishing control unit is electrically connected to at least one sensor. The fire extinguishing control unit includes at least one second connector, a valve, and a fire extinguisher. The at least one second connector is correspondingly connected to at least one first connector, and the valve is connected to both the at least one first connector and the at least one second connector. The system senses the high temperature inside the box to open the valve, allowing the extinguishing agent in the fire extinguisher to be sprayed downwards through the plurality of spray nozzles for real-time fire extinguishing.

[0024] Please see Figure 1 As shown, this is a preferred embodiment of the battery disaster prevention system 1 of this utility model, mainly including a plurality of battery boxes 2, a fire extinguishing control unit 3, and a cooling control unit 4. The plurality of battery boxes 2 are positioned vertically inside a battery cabinet 9, and the fire extinguishing control unit 3 and the cooling control unit 4 are respectively positioned on one side of the battery cabinet 9. In practice, the battery boxes 2 can also be installed independently and used in conjunction with the fire extinguishing control unit 3 and the cooling control unit 4.

[0025] Please see Figures 2-6As shown, any battery box 2 includes a box body 21 and a top cover 22. The box body 21 is a rectangular container, mainly including a front side panel 211, a left side panel 212, a rear side panel 213, and a right side panel 214, which together frame a lower space 215. The lower space 215 has four battery cell modules 216 arranged side by side. Each battery cell module 216 includes a plurality of battery cells 217 arranged side by side. Each battery cell 217 has a pressure relief port 218 on its top surface. The pressure relief port 218 is closed under normal conditions, but opens when the air pressure inside the battery cell 217 reaches a predetermined value. A plurality of sensors 219 are distributed above the four battery cell modules 216. In practice, the sensors 219 are temperature sensors, smoke sensors, or both temperature sensors and smoke sensors.

[0026] The top cover 22 is a rectangular shell with its opening facing downwards, mainly comprising a cover body 221 and a fixing member 222. A first positioning hole 223, a second positioning hole 224, and a third positioning hole 225 are provided at intervals on one side of the cover body 221. The interior of the cover body 221 has an upper space 226, within which are a plurality of long tubes 5 and a cooling component 6. The plurality of long tubes 5 are parallel to each other and spaced apart. Each long tube 5 has a plurality of injection nozzles 51 spaced apart along its long axis. One end of each of the plurality of long tubes 5 is interconnected and connected to a first connector 52. The first connector 52 extends outwards through the second positioning hole 224 on one side of the top cover 22.

[0027] The refrigeration component 6 includes a continuous bend 61, which has an inlet end 62 and an outlet end 63. The inlet end 62 and the outlet end 63 extend outward through a first positioning hole 223 and a third positioning hole 225 on one side of the top cover 22, respectively, and are located on both sides of the first connector 52. After continuous bending, the continuous bend 61 forms a plurality of long tube sections 64 and a plurality of bent sections 65, with a plurality of parallel elongated spaces 66 between the plurality of long tube sections 64 and the plurality of bent sections 65. In addition, a plurality of long tube components 5 are located within the plurality of elongated spaces 66, so that the plurality of long tube sections 64 are parallel to the plurality of long tube components 5, and the plurality of long tube sections 64 are staggered between the plurality of long tube components 5.

[0028] The fixing component 222 includes a plurality of pressure strips 227 and an insulating plate 228. The two ends of the plurality of pressure strips 227 are respectively welded to the two side plates of the cover 221 to position the plurality of long tubes 5 and the plurality of long tube sections 64. The insulating plate 228 is a square flat plate with a plurality of through holes 229 and a plurality of vent holes 220 arranged in a rectangular array on its surface. When the cover 22 is closed on top of the housing 21, the insulating plate 228 is sandwiched between the plurality of pressure strips 227 and the four battery cell modules 216 to achieve insulation and shock absorption, and to allow the plurality of injection ports 51 of the plurality of long tubes 5 to be correspondingly positioned directly above the plurality of through holes 229 and the plurality of pressure relief ports 218.

[0029] The fire extinguishing control unit 3 is electrically connected to a plurality of sensors 219, and the fire extinguishing control unit 3 includes a second connector 31, a valve 32, and a fire extinguisher 33. The second connector 31 is correspondingly connected to the first connector 52 at one end of a plurality of long pipe fittings 5, and the valve 32 is a solenoid valve, which is connected to the second connector 31 and the fire extinguisher 33 respectively. Therefore, when any battery cell 217 heats up due to a short circuit, not only will the pressure relief port 218 of that battery cell 217 open, but the temperature of the space above the four battery cell modules 216 will also rise. When the sensor 219 detects a high temperature above 90°C or smoke, it will open the solenoid valve, allowing the extinguishing agent in the fire extinguisher 33 to be sprayed downwards through the second connector 31 and the first connector 52, and then through the multiple nozzles 51 of the multiple long tubes 5. The extinguishing agent will then pass downwards through the multiple perforations 229 of the insulating plate 228 and be sprayed directly onto the pressure relief port 218, thereby covering and filling the battery cell 217 to achieve the effect of real-time fire extinguishing.

[0030] The cooling control unit 4 is connected to the inlet 62 and outlet 63 of the continuous bend 61, allowing coolant to enter the continuous bend 61 through the inlet 62 and exit through the outlet 63. The cooling control unit 4 has a variable frequency motor 41, which is connected to both the inlet 62 and the outlet 63. When the sensor 219 detects a temperature rise in the space above the four battery cell modules 216, the motor can control the cooling water flow rate within the continuous bend 61 to maintain the temperature between 25°C and 30°C. Since 25°C to 30°C is the optimal operating temperature for most lithium batteries, this stabilizes the driving range of the battery cells 217 and extends their lifespan.

[0031] In summary, based on the content disclosed in this utility model, it can indeed achieve the intended purpose, providing a system that automatically opens a valve when any sensor detects high temperature or smoke, allowing the extinguishing agent from the fire extinguisher outside the battery box to enter the battery box and then spray it onto the burning battery cells through multiple nozzles to cover and extinguish the flames in real time, thereby ensuring safe use. Furthermore, by installing a continuous curved pipe of a cooling element above the multiple battery cell modules and controlling the speed of the cooling water flow with a variable frequency motor, the temperature of the space above the battery cell modules can be maintained within a predetermined range, thereby stabilizing the battery cell's range and extending its service life, which has significant industrial application value.

[0032] While this utility model discloses preferred embodiments to achieve the above objectives, it is not intended to limit the structural features of this utility model. Any person skilled in the art should understand that any easily conceivable variations or modifications are possible under the technical spirit of this utility model and are covered by the protection scope of this utility model.

Claims

1. A battery disaster prevention system, characterized in that, include: At least one battery box, the battery box including a box body and a top cover, the box body having a plurality of side plates, the plurality of side plates forming a lower space, the lower space having at least one battery cell module arranged side by side, and at least one sensor above the at least one battery cell module; the top cover covering the top of the box body, the top cover having an upper space inside, the upper space having at least one long tube, one end of the at least one long tube having at least one first connector, the at least one long tube having a plurality of injection ports, the plurality of injection ports being correspondingly arranged above the at least one battery cell module; as well as A fire extinguishing control unit is electrically connected to the at least one sensor. The fire extinguishing control unit includes at least one second connector, a valve, and a fire extinguisher. The at least one second connector is correspondingly connected to the at least one first connector. The valve is connected to the at least one second connector and the fire extinguisher respectively. The at least one sensor senses high temperature to open the valve, and then the extinguishing agent in the fire extinguisher is sprayed downward through the plurality of spray nozzles.

2. The battery disaster prevention system as described in claim 1, characterized in that: The plurality of side panels include a front side panel, a left side panel, a rear side panel, and a right side panel, which together frame the lower space; any of the battery cell modules includes a plurality of battery cells arranged side by side, each of the plurality of battery cells having a pressure relief port on its top surface, and the plurality of injection ports being correspondingly disposed above the plurality of pressure relief ports.

3. The battery disaster prevention system as described in claim 1, characterized in that: The cover includes a cover body and a fixing member. The interior of the cover body has the upper space for accommodating at least one long pipe. The fixing member is connected to the cover body for positioning the at least one long pipe.

4. The battery disaster prevention system as described in claim 3, characterized in that: The upper space of the cover has a plurality of long tubes arranged in parallel and at intervals, each of the long tubes having a plurality of spray nozzles arranged at intervals along its long axis; the fixing member includes at least one pressure strip connected to the cover body for positioning the plurality of long tubes.

5. The battery disaster prevention system as described in claim 1, characterized in that: It also includes a cooling component and a cooling control unit. The cooling component is housed and positioned in the upper space of the top cover and is correspondingly disposed directly above the at least one battery cell module. The cooling control unit is connected to the cooling component to control the temperature in the lower space of the housing.

6. The battery disaster prevention system as described in claim 5, characterized in that: The cooling component includes a continuous curved tube having a plurality of long tube sections, a water inlet end, and a water outlet end. The plurality of long tube sections are arranged in parallel and correspondingly positioned above the at least one battery cell module. The water inlet end, the water outlet end, and at least one first connector extend out of one side of the top cover. The water inlet end and the water outlet end are respectively connected to the cooling control unit, allowing coolant to be input from the water inlet end and output from the water outlet end, thereby controlling the temperature in the lower space of the housing.

7. The battery disaster prevention system as described in claim 6, characterized in that: The upper space of the cover has a plurality of long tubes arranged in parallel and at intervals, the plurality of long tubes being parallel to the plurality of long tubes and the plurality of long tubes being staggered between the plurality of long tubes.

8. The battery disaster prevention system as described in claim 7, characterized in that: The cover includes a cover body and a fixing member. The interior of the cover body has the upper space for accommodating the plurality of long tubes and the plurality of long tube sections. The fixing member is connected to the cover body for positioning the plurality of long tubes and the plurality of long tube sections.

9. The battery disaster prevention system as described in claim 8, characterized in that: The fastener includes at least one pressure strip and an insulating plate. The pressure strip is connected to the cover and is used to position the plurality of long tubes and the plurality of long tube sections. The insulating plate is positioned below the pressure strip and has a plurality of perforations on its surface for the downward spraying of extinguishing agent.

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