A flame retardant new energy battery box

Abstract

The present invention discloses a flame-retardant new energy battery box, which relates to the technical field of battery boxes, including a box body, and a plurality of battery storage modules arranged in an array in the box body, wherein a heat dissipation hole structure is provided on the box body; the battery storage module includes: a flame-retardant box, wherein a first storage chamber for containing a fire extinguishing fluid is formed inside the box body; and a battery storage box. Under normal conditions, the plurality of square insulation frames of the present invention can form equidistant gaps between adjacent square insulation frames under the drive of a linkage component, and the airflow flowing inside the box body can enter the battery storage from a plurality of equidistant gaps to evenly dissipate heat to various parts of the battery. When the battery burns, the plurality of square insulation frames can be synchronously moved under the drive of the linkage component, and the equidistant gaps between adjacent square insulation frames can be quickly changed to zero, so as to quickly isolate the burning battery, and spray the fire extinguishing fluid into the battery storage chamber to extinguish the flame.

Description

Technical Field

[0001] The present invention relates to the technical field of battery boxes, and in particular to a flame-retardant new energy battery box. Background Art

[0002] In today's era, technological changes in new energy vehicles have become an inevitable direction of development for the automobile industry. However, through research, it is found that the core technology of my country's new energy vehicles still needs to be improved.

[0003] During the use of power batteries, especially when discharged at high rates, the batteries will generate a lot of heat. Traditional liquid cooling systems cannot efficiently dissipate this heat in a timely manner, which reduces the battery's capacity retention rate and greatly weakens the battery's performance. In severe cases, it will cause thermal runaway, causing battery overheating, fire, and explosion. In addition, when the battery is subjected to external collisions and strong impacts, it will cause short circuits and explosions, seriously affecting personal safety. Summary of the invention

[0004] The purpose of the present invention is to provide a flame retardant new energy battery box to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0006] The present invention provides a flame retardant new energy battery box, characterized in that it comprises a box body, and a plurality of battery storage modules arranged in an array in the box body, and a heat dissipation hole structure is provided on the box body;

[0007] The battery storage module comprises:

[0008] A flame retardant box, wherein a first storage chamber for containing a fire extinguishing fluid is formed inside the box;

[0009] A battery storage box, comprising limit plates symmetrically and vertically fixed at both ends of the top of the heat dissipation and flame retardant box, a plurality of square insulation frames vertically slidably assembled between the two limit plates, and a linkage assembly connected to the plurality of square insulation frames, wherein the inner sides of the plurality of square insulation frames enclose a battery storage chamber, and the inner sides of the plurality of square insulation frames are evenly provided with positioning pieces, a cover body is hingedly connected to the top of the square insulation frame located at the top, and an elastic shrinkage piece is provided at the bottom of the cover body, wherein the elastic shrinkage piece can contact the top of the battery and can be compressed, and the square insulation frame located at the bottom is fixedly connected to the top of the heat dissipation and flame retardant box, and the linkage assembly is used to drive the other square insulation frames except the square insulation frame located at the bottom to slide vertically between the two limit plates, so that equidistant gaps are formed between adjacent square insulation frames;

[0010] A fire extinguishing assembly, comprising a nozzle vertically arranged inside a plurality of square heat-insulating frames, and a liquid injection member arranged in a first storage chamber and connected to an input end of the nozzle, the liquid injection member being used to inject the fire extinguishing fluid in the first storage chamber into the nozzle, and nozzle holes being evenly arranged on the outside of the nozzle;

[0011] The temperature control component includes a temperature sensor arranged in the storage cavity.

[0012] Furthermore, the fire extinguishing fluid is perfluorohexanone.

[0013] Furthermore, the linkage assembly includes scissor-type telescopic frames symmetrically and vertically arranged on both sides of a number of square insulation frames, the hinge axes of each middle hinge node in the length direction of the scissor-type telescopic frames are respectively fixedly connected to the several square insulation frames, and a linear drive for driving the scissor-type telescopic frame to extend and retract is arranged in one of the rhombus grids of the scissor-type telescopic frame.

[0014] Furthermore, the heat dissipation hole structure includes an air inlet and an air outlet symmetrically arranged at both ends of the box body; an inlet fan and an outlet fan are respectively arranged at the air inlet and the air outlet.

[0015] Furthermore, a second storage chamber for containing coolant is formed in the flame retardant box above the first storage chamber, the interior of the square heat insulation frame is hollow and has a frame-shaped liquid cooling channel, the positioning piece is a heat dissipation fin, and one end of the heat dissipation fin extends into the liquid cooling channel, and connecting pipes are provided in the middle of both ends of the square heat insulation frame;

[0016] Except for the bottommost square insulation frame and the topmost square insulation frame, one of the two connecting pipes of the other square insulation frames is connected to the connecting pipe of the square insulation frame below it through a hose, and the other connecting pipe is connected to the square insulation frame above it through a hose;

[0017] Two connecting pipes of the bottom square heat-insulating frame, one of which is connected to a liquid pump disposed in the second storage chamber through a pipeline, and the other is connected to a connecting pipe of the square heat-insulating frame above it through a hose;

[0018] One of the two connecting pipes of the uppermost square heat-insulating frame is communicated with the coolant storage chamber through a telescopic pipeline, and the other connecting pipe is connected with the connecting pipe of the square heat-insulating frame below it through a hose.

[0019] Furthermore, the positioning piece and the top surface of the square heat insulation frame have an angle.

[0020] Furthermore, a pressure relief pipe is provided on the cover body, and a pressure relief valve is provided on the pressure relief pipe.

[0021] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0022] Under normal conditions, several square insulation frames of the present invention can form equidistant gaps between adjacent square insulation frames through the driving of a linkage component, and the airflow flowing inside the box can enter the battery storage from multiple equidistant gaps to evenly dissipate heat to various parts of the battery. When the battery burns, several square insulation frames can move synchronously under the driving of the linkage component, and the equidistant gaps between adjacent square insulation frames can be quickly changed to 0, so as to quickly isolate the burning battery, and spray fire extinguishing fluid into the battery storage room to extinguish the flames.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0026] Figure 2 is a schematic diagram of the structure of the present invention from a second viewing angle;

[0027] Figure 3 is a schematic structural diagram of a battery storage module of the present invention from a first viewing angle;

[0028] Figure 4 is a schematic top view of a structural battery storage module of the present invention;

[0029] Figure 5 yes Figure 4 BB structural diagram;

[0030] Figure 6 is a schematic structural diagram of a battery storage module of the present invention from a second viewing angle;

[0031] Figure 7 is a front view structural schematic diagram of a battery storage module of the present invention;

[0032] Figure 8 yes Figure 7 Schematic diagram of CC structure;

[0033] Fig. 9 It is a schematic diagram of the linkage assembly structure of the present invention.

[0034] In the figure:

[0035] 1. Box body; 2. Battery storage module; 21. Flame retardant box; 211. First storage chamber; 212. Second storage chamber; 22. Battery storage box; 221. Limiting plate; 222. Square heat insulation frame; 2221. Liquid cooling channel; 2222. Connecting pipe; 223. Linkage assembly; 2231. Middle hinge node; 2232. Diamond grid; 225. Positioning piece; 226. Cover; 2261. Pressure relief pipe; 2262. Pressure relief valve; 2263. Elastic contraction part; 23. Fire extinguishing assembly; 231. Nozzle; 232. Liquid injection part; 24. Temperature control assembly;

[0036] 31. Air inlet; 32. Air outlet; 4. Liquid pump. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0038] See also Figure 1-Figure 9 The present invention provides a flame retardant new energy battery box, comprising a box body 1, and a plurality of battery storage modules 2 arranged in an array in the box body 1, and a heat dissipation hole structure is provided on the box body 1. When in use, the battery can be stored in the battery storage module 2 in the box body 1, and the heat dissipation hole structure on the box body 1 connects the box body 1 with the outside, and the heat in the box body 1 can be conducted outward through the heat dissipation hole structure.

[0039] Furthermore, the heat dissipation hole structure includes an air inlet 31 and an air outlet 32 ​​symmetrically arranged at both ends of the box body 1; an inlet fan and an outlet fan are respectively arranged at the air inlet 31 and the air outlet 32. The inlet fan and the outlet fan can force the box body 1 to form a flowing airflow to dissipate heat from the battery, thereby improving the heat dissipation effect.

[0040] The battery storage module 2 serves as a mechanism for storing batteries, and includes a flame retardant box 21, a battery storage box 22, a fire extinguishing component 23 and a temperature control component 24, which can prevent the battery from burning, isolate the burning battery from other batteries in the box 1 in time, and extinguish the flame of the burning battery to prevent the flame from spreading.

[0041] A first storage chamber 211 for containing a fire extinguishing agent is formed inside the flame retardant box 21. Under normal conditions, the fire extinguishing agent is stored in the first storage chamber 211. When the battery burns, the fire extinguishing agent can be discharged to extinguish the flame.

[0042] The battery storage box 22 includes a limit plate 221 symmetrically and vertically fixed at both ends of the top of the heat dissipation and flame retardant box 21, a plurality of square heat insulation frames 222 vertically slidably assembled between the two limit plates 221, and a linkage assembly 223 connected to the plurality of square heat insulation frames 222. The inner sides of the plurality of square heat insulation frames 222 are surrounded by a battery storage chamber 224, and the inner sides of the plurality of square heat insulation frames 222 are evenly provided with positioning pieces 225. The top of the square heat insulation frame 222 at the top is A cover body 226 is provided at the bottom, and an elastic shrinkage piece 2263 is provided at the bottom of the cover body 226, and the elastic shrinkage piece 2263 can contact the top of the battery and can be compressed. The square insulation frame 222 located at the bottom is fixedly connected to the top of the heat dissipation and flame retardant box 21, and the linkage assembly 223 is used to drive the other square insulation frames 222 except the square insulation frame 222 located at the bottom to slide vertically between the two limit plates 221, so that equidistant gaps are formed between adjacent square insulation frames 222. Under normal conditions, the battery is in the battery storage chamber 224 and is limited by the positioning pieces 225 on the inner sides of the plurality of square heat-insulating frames 222. At this time, the linkage assembly 223 can drive the other square heat-insulating frames 222 except the square heat-insulating frame 222 located at the bottom to slide vertically between the two limiting plates 221, so that an equidistant gap (the gap is greater than 0) is formed between adjacent square heat-insulating frames 222, and the airflow in the box body 1 can enter the battery storage chamber 2 through the equidistant gaps between adjacent square heat-insulating frames 222. 24, the heat generated by the battery is taken away to dissipate the heat of the battery. When the battery burns, the linkage component 223 drives the adjacent square insulation frames 222 to form an equidistant gap of zero, that is, the adjacent square insulation frames 222 are against each other. At this time, several square insulation frames 222 and the cover body 226 form an enclosed insulation chamber to isolate the burning battery from other batteries. On the one hand, it prevents the spread of fire and blocks the conduction of heat, and on the other hand, it isolates oxygen to prevent the combustion of the battery.

[0043] It is worth mentioning that, under normal conditions, several square insulation frames 222 in the present technical solution can form equidistant gaps (the equidistant gaps are greater than 0) between adjacent square insulation frames 222 through the driving of the linkage component 223, and the airflow flowing inside the box 1 can enter the battery storage from multiple equidistant gaps to evenly dissipate heat to various parts of the battery. When the battery burns (generally speaking, the speed of the battery is faster when it burns, so if the isolation speed is slower, the fire may spread to other locations), the present technical solution can synchronously move several square insulation frames 222 under the driving of the linkage component 223, which can quickly change the equidistant gaps between adjacent square insulation frames 222 to 0, so as to quickly isolate the burning battery, and in winter, the present technical solution can form equidistant gaps between adjacent square insulation frames 222 to 0 through the linkage component 223, so that the battery can be stored in a closed manner to prevent the battery temperature from being too low and affecting the use of the battery.

[0044] The fire extinguishing assembly 23 includes a nozzle 231 vertically arranged inside a plurality of square heat insulation frames 222, and a liquid injection member 232 arranged inside the first storage chamber 211 and connected to the input end of the nozzle 231. The liquid injection member 232 is used to inject the fire extinguishing fluid in the first storage chamber 211 into the nozzle 231. The outer side of the nozzle 231 is evenly provided with spray holes. When the battery burns, the liquid injection member 232 can inject the fire extinguishing fluid in the first storage chamber 211 into the nozzle 231, and then discharge it from the spray hole of the nozzle 231 to extinguish the flame of the burning battery.

[0045] The temperature control assembly 24 includes a temperature sensor disposed in the storage cavity. The temperature sensor can monitor the temperature in the battery storage chamber 224 in real time, and when the battery temperature reaches a threshold, that is, when the battery burns, the burning battery can be isolated in time and the injection part 232 can be activated to extinguish the flame through the fire extinguishing fluid to prevent the fire from spreading further.

[0046] In this specific embodiment, the fire extinguishing fluid is perfluorohexanone. On the one hand, the fire extinguishing concentration of perfluorohexanone is 4-6%, and its safety margin is relatively high, which is safer for the human body when used. On the other hand, perfluorohexanone is a liquid at room temperature and does not belong to dangerous goods. It can be safely stored and transported (including air transport) in a wide temperature range using ordinary containers under normal pressure, unlike other halon substitutes that require pressure vessels for storage and transportation. Of course, it is not limited to this, and the fire extinguishing fluid can also use other fire extinguishing fluids.

[0047] In this specific embodiment, the linkage assembly 223 includes a scissor-type telescopic frame symmetrically and vertically arranged on both sides of a plurality of square heat-insulating frames 222, and the hinge shafts of each middle hinge node 2231 in the telescopic direction of the scissor-type telescopic frame are respectively fixedly connected to the plurality of square heat-insulating frames 222, and a linear actuator for driving the telescopic scissor-type telescopic frame to be telescoped is arranged in one of the rhombus grids 2232 of the scissor-type telescopic frame. The scissor-type telescopic frame is a prior art, and when one of the rhombus grids 2232 changes, the entire rhombus grid 2232 changes at the same time to achieve telescopic expansion. The linear actuator is an electric telescopic rod, and its two ends are respectively hinged on both sides of one of the rhombus grids 2232 of the scissor-type telescopic frame to drive the telescopic expansion of the scissor-type telescopic frame.

[0048] Furthermore, a second storage chamber 212 for containing coolant is formed in the flame retardant box 21 above the first storage chamber 211, the interior of the square insulation frame 222 is hollow and has a frame-shaped liquid cooling channel 2221, the positioning piece 225 is an elastic spring, and one end of the elastic spring extends into the liquid cooling channel 2221, and connecting pipes 2222 are provided in the middle of both ends of the square insulation frame 222; except for the bottom square insulation frame 222 and the top square insulation frame 222, among the two connecting pipes 2222 of other square insulation frames 222, one of the connecting pipes 2222 is connected to the connecting pipe 2222 of the square insulation frame 222 below it through a hose, Another connecting tube 2222 is connected to the square insulation frame 222 above it through a hose; of the two connecting tubes 2222 of the lowest square insulation frame 222, one of the connecting tubes 2222 is connected to the liquid pump 4 arranged in the second storage chamber 212 through a pipeline, and the other connecting tube 2222 is connected to the connecting tube 2222 of the square insulation frame 222 above it through a hose; of the two connecting tubes 2222 of the highest square insulation frame 222, one of the connecting tubes 2222 is connected to the second storage chamber 212 through a telescopic pipe 2223, and the other connecting tube 2222 is connected to the connecting tube 2222 of the square insulation frame 222 below it through a hose. Under normal conditions, the airflow flowing in the box 1 dissipates heat to the battery. When the temperature sensor detects that the temperature of a battery storage chamber 224 rises to the first preset value, the liquid pump 4 is started, and the liquid pump 4 can continuously introduce the coolant in the second storage chamber 212 into the bottommost square insulation frame 222 through the pipeline, so that the coolant enters the liquid cooling channel 2221 of the square insulation frame 222 from bottom to top, wherein the elastic spring of the square insulation frame 222 can absorb the heat of the battery by heat conduction, and then the heat is taken away by the coolant through the liquid cooling channel 2221, so as to dissipate heat to the battery through air cooling and water cooling. When the temperature of the battery storage chamber 224 rises to the second preset value, that is, the battery burns, the flowing coolant in the liquid cooling channel 2221 of the square insulation frame 222 can improve the insulation effect of the square insulation frame 222, so as to prevent the temperature in the battery storage chamber 224 from being transferred to other battery storage chambers 224, causing the temperature of other batteries to rise.

[0049] In this specific embodiment, the positioning piece 225 and the top surface of the square heat insulation frame 222 have an angle, which can increase the contact area with the battery and improve the heat dissipation and limiting effects.

[0050] In this specific embodiment, the cover 226 is further provided with a pressure relief pipe 2261, and the pressure relief pipe 2261 is provided with a pressure relief valve 2262. During the fire extinguishing process, when the air pressure in the battery storage chamber 224 increases, it will be discharged to the outside through the pressure relief pipe 2261 to avoid explosion.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flame retardant new energy battery box, characterized in that: It includes a box body, and a plurality of battery storage modules arranged in an array in the box body, and a heat dissipation hole structure is provided on the box body; The battery storage module comprises: A flame retardant box, wherein a first storage chamber for containing a fire extinguishing fluid is formed inside the box; A battery storage box, comprising limit plates symmetrically and vertically fixed at both ends of the top of the heat dissipation and flame retardant box, a plurality of square insulation frames vertically slidably assembled between the two limit plates, and a linkage assembly connected to the plurality of square insulation frames, wherein the inner sides of the plurality of square insulation frames enclose a battery storage chamber, and the inner sides of the plurality of square insulation frames are evenly provided with positioning pieces, a cover body is hingedly connected to the top of the square insulation frame located at the top, and an elastic shrinkage piece is provided at the bottom of the cover body, wherein the elastic shrinkage piece can contact the top of the battery and can be compressed, and the square insulation frame located at the bottom is fixedly connected to the top of the heat dissipation and flame retardant box, and the linkage assembly is used to drive the other square insulation frames except the square insulation frame located at the bottom to slide vertically between the two limit plates, so that equidistant gaps are formed between adjacent square insulation frames; A fire extinguishing assembly, comprising a nozzle vertically arranged inside a plurality of square heat-insulating frames, and a liquid injection member arranged in a first storage chamber and connected to an input end of the nozzle, the liquid injection member being used to inject the fire extinguishing fluid in the first storage chamber into the nozzle, and nozzle holes being evenly arranged on the outside of the nozzle; A temperature control assembly, comprising a temperature sensor disposed in the storage cavity; The linkage assembly includes scissor-type telescopic frames symmetrically and vertically arranged on both sides of a plurality of square heat-insulating frames, the hinge shafts of each middle hinge node in the length direction of the scissor-type telescopic frame are respectively fixedly connected to the plurality of square heat-insulating frames, and a linear actuator for driving the scissor-type telescopic frame to extend and retract is arranged in one of the rhombus cells of the scissor-type telescopic frame; A second storage chamber for containing coolant is formed in the flame retardant box above the first storage chamber, the interior of the square heat insulation frame is hollow and has a frame-shaped liquid cooling channel, the positioning piece is a heat dissipation fin, and one end of the heat dissipation fin extends into the liquid cooling channel, and connecting pipes are provided in the middle of both ends of the square heat insulation frame; Except for the bottom square insulation frame and the top square insulation frame, one of the two connecting pipes of the other square insulation frames is connected to the connecting pipe of the square insulation frame below it through a hose, and the other connecting pipe is connected to the square insulation frame above it through a hose; one of the two connecting pipes of the bottom square insulation frame is connected to the liquid pump arranged in the second storage chamber through a pipeline, and the other connecting pipe is connected to the connecting pipe of the square insulation frame above it through a hose; One of the two connecting pipes of the uppermost square heat-insulating frame is communicated with the coolant storage chamber through a telescopic pipeline, and the other connecting pipe is connected with the connecting pipe of the square heat-insulating frame below it through a hose.

2. The flame-retardant new energy battery box according to claim 1, characterized in that: The fire extinguishing fluid is perfluorohexanone.

3. The flame-retardant new energy battery box according to claim 1, characterized in that: The heat dissipation hole structure comprises an air inlet and an air outlet symmetrically arranged at two ends of the box body; an inlet fan and an outlet fan are respectively arranged at the air inlet and the air outlet.

4. The flame-retardant new energy battery box according to claim 1, characterized in that: The positioning piece and the top surface of the square heat insulation frame form an included angle.

5. The flame-retardant new energy battery box according to claim 1, characterized in that: The cover body is also provided with a pressure relief pipe, and the pressure relief pipe is provided with a pressure relief valve.

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