Aerogel composite temperature control body battery cooling device

Abstract

The invention relates to the technical field of battery cooling, in particular to an aerogel composite temperature control body battery cooling device which comprises a basic assembly, a capacity expansion assembly and a guide assembly, the basic assembly comprises a protective shell, the protective shell is formed by combining an upper shell and a lower shell, and the top and the periphery of an inner cavity of the upper shell are provided with an inner cavity; heat-preservation flame-retardant liners are arranged at the bottom of the inner cavity of the shell on the lower side; the heat-preservation flame-retardant lining comprises a sandwich formed by compounding and laminating a surface layer and a lining layer, and a metal net for packaging the sandwich and used for supporting and preventing abrasion; wherein the surface layer is located on the side facing the protective shell, the number of the surface layer is at least one, and preparation materials of the surface layer include but not limited to aluminum foil cloth, basalt cloth and silica gel cloth. The composite temperature control body for heat collection and dissipation, heating, heat preservation and flame retardance is additionally arranged on the surface of the battery, so that normal use of the battery at high and low environment temperatures is ensured, and the service time and the service life of the battery are kept.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cooling, and specifically to an aerogel composite temperature control body battery cooling device. Background Art

[0002] With the rapid development of new energy batteries, their application fields and regions are becoming wider and wider.

[0003] However, on the one hand, limited by the high and low temperature efficiency and battery life of the battery, the popularization of new energy electric vehicles in the currently cold northern regions with relatively low temperatures is still hindered. In addition, the spontaneous combustion of new energy batteries is extremely harmful, which has had a great impact on the promotion of new energy vehicles.

[0004] On the other hand, when the battery catches fire, it will lose temperature control, and water cannot extinguish it and wind cannot blow it down. As a result, a large amount of high-temperature toxic smoke and flames will quickly spread into the vehicle compartment, causing serious harm to the occupants.

[0005] Therefore, the present invention develops a composite temperature control body that integrates heat dissipation, self-heating, heat preservation and flame retardancy in order to solve the above problems of new energy batteries. Summary of the Invention

[0006] In order to solve the situation that the battery is affected by the external temperature and the escape time of the occupants is extremely short during spontaneous combustion, the present invention provides an aerogel composite temperature control body battery cooling device to solve the above problems.

[0007] To achieve the above object, the present invention provides the following technical solutions: An aerogel composite temperature control body battery cooling device includes a basic component, an expansion component and a guiding component. The basic component includes a protective shell. A temperature sensor and a pressure sensor are arranged inside the protective shell. The protective shell is formed by combining two upper and lower shells. Heat preservation and flame retardant linings are provided at the top of the inner cavity of the upper shell and its periphery, and at the bottom of the inner cavity of the lower shell.

[0008] The heat preservation and flame retardant lining includes a sandwich formed by laminating an outer skin layer and an inner layer, and a metal mesh that encapsulates the sandwich and is used for support and abrasion prevention.

[0009] Among them, the outer skin layer is on the side facing the protective shell. The outer skin layer is at least one layer, and its preparation materials include but are not limited to aluminum foil cloth, basalt cloth and silica gel cloth. The inner layer is at least one layer, and its preparation materials include but are not limited to high silica fiber felt, glass fiber felt and aerogel felt.

[0010] The base component further includes a mounting bracket one disposed inside the upper housing for stabilizing the battery. The batteries are arranged in multiple rows side by side, and cooling aluminum sheet tubes two are inserted into the gaps between adjacent rows. Heat-conducting silicone sheets two are pasted on both sides of the cooling aluminum sheet tubes two. Electric heating wires are pasted on the sides of the heat-conducting silicone sheets two facing the batteries. Cooling aluminum sheet tubes one are provided on both sides of the batteries. Heat-conducting silicone sheets one are pasted on the sides of the cooling aluminum sheet tubes one facing the batteries. The two ends of the cooling aluminum sheet tubes two are respectively communicated with the cooling aluminum sheet tubes one on both sides.

[0011] One end of one of the cooling aluminum sheet tubes one is connected to a three-way valve one, and the end of the other cooling aluminum sheet tube one far from the three-way valve one is connected to a three-way valve two.

[0012] Among them, one valve port of the three-way valve one is connected to a pump one, the inlet of the pump one is connected to a finned tube radiator, the inlet of the finned tube radiator is connected to one valve port of the three-way valve two, and both the finned tube radiator and the pump one are disposed at the outer end of the protective housing.

[0013] As a preferred solution of the present invention, the base component further includes a mounting bracket two installed inside the lower housing. A serpentine cooling aluminum sheet tube is installed on the top of the mounting bracket two. One end of the serpentine cooling aluminum sheet tube is connected to a pump two, the pump two is communicated with the remaining valve port of the three-way valve two, and the other end of the serpentine cooling aluminum sheet tube is communicated with the remaining valve port of the three-way valve one.

[0014] As a preferred solution of the present invention, the expansion component includes an inner flange one disposed above the inner upper end of the bottom port of the upper housing, an inner flange two disposed below the inner lower end of the top port of the lower housing, a folding bellows one disposed between the inner flange one and the inner flange two, an outer flange one disposed outside the bottom port of the upper housing, an outer flange two disposed outside the top port of the lower housing, and an explosion bolt one for connecting the outer flange one and the outer flange two.

[0015] Among them, the top port of the folding bellows one is connected to the inner flange one, the bottom port of the folding bellows one is connected to the inner flange two, and the folding bellows one is made of aerogel material.

[0016] As a preferred solution of the present invention, the guiding component includes a sunken cabin installed at one end of the bottom of the lower housing. Two holes communicating with the inside of the protective housing are opened on one side of the sunken cabin. Folding bellows two are connected to the holes. The inner flange two is made of aerogel material. One end of each of the folding bellows two is connected to a docking plate frame. A pipe head is connected to the center of each docking plate frame. Auxiliary discharge ports are opened on the top and both side surfaces of the pipe head. A sealing cover is pasted inside the pipe head through an adhesive.

[0017] The guiding component further includes an outer protection tube sleeved outside the second folding corrugated pipe. One end of the outer protection tube is correspondingly connected to the side surface of the sinking cabin, and the docking plate frame is correspondingly connected to the other end of the outer protection tube through an explosion bolt II.

[0018] As a preferred solution of the present invention, the metal mesh is a 304 stainless steel metal mesh, and both the first three-way valve and the second three-way valve are T-shaped three-way ball valves.

[0019] As a preferred solution of the present invention, a blower is provided outside the finned tube radiator.

[0020] The outside of the blower is connected with an external equipment box shell. One end of the external equipment box shell is correspondingly connected to one end of the upper shell, and is used for accommodating the finned tube radiator and the first pump.

[0021] As a preferred solution of the present invention, a processor connected to each electrical equipment is further provided inside the external equipment box shell.

[0022] The guiding component further includes a bumper, and the bumper is installed on the side of the sinking cabin away from the outer protection tube.

[0023] As a preferred solution of the present invention, the first folding corrugated pipe and the second folding corrugated pipe are preferably made of super-elastic cellulose aerogel material.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the heat dissipation and heating technologies, the present invention realizes the heat dissipation and heating inside the protective shell. Through the heat insulation of the heat preservation and flame retardant lining, it can isolate the external high temperature in summer, reduce the burden on the heat dissipation system, ensure the stability and safety of the battery operation, and at the same time isolate the external low temperature in winter, avoiding the battery being in a low temperature environment, which may lead to a reduction in battery life. By using the first three-way valve and the second three-way valve to realize the alternation of internal and external circulation, the liquid only circulates inside. On the one hand, it can make the heat spread throughout the protective shell more quickly. On the other hand, it can also avoid the loss of heat caused by the outflow of hot liquid. Combined with the temperature sensor, finally, by installing a composite temperature control body with heat dissipation, heating, heat preservation, and flame retardant functions on the battery surface, it can ensure the normal use of the battery under high and low temperature environmental conditions, and maintain the service time and battery life.

[0025] 2. By detonating the first explosion bolt, the two shells of the protective shell are separated from each other, and under the action of the flue gas pressure, the first folding corrugated pipe is propped up. Through the highly elastic first folding corrugated pipe and the flame retardant and heat insulation characteristics of the aerogel itself, the flue gas can be limited in a certain closed space at the moment of the flue gas explosion, preventing it from flowing into the carriage and winning time for personnel to escape.

[0026] 3. The present invention detonates the second explosive bolt, and then the high-pressure smoke will flow into the second folding bellows through the sinking compartment. Due to the blocking of the sealing cover, the smoke cannot overflow, thereby expanding the second folding bellows and extending it toward the rear of the vehicle. Then, after the smoke is baked at high temperature for a certain period of time, the adhesive fails, and the pressure breaks the sealing cover, and finally the high-temperature toxic smoke and flame are directed to a distance, preventing the fire from spreading to the interior of the car. According to the principle that it is better to drain than to block, the high-temperature toxic smoke and flame are directed to a place far away from the vehicle, thereby greatly improving the chance of escape of the personnel and realizing another temperature control of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 for Figure 1 Another perspective diagram of the structure; Figure 3 It is a schematic diagram of the thermal insulation and flame retardant lining of the present invention; Figure 4 for Figure 3 Another perspective diagram of the structure; Figure 5 It is a simplified schematic diagram of the thermal insulation and flame retardant lining structure of the present invention; Figure 6 for Figure 1 Schematic diagram of the structure in the figure; Figure 7 for Figure 6 Another perspective diagram of the structure; Figure 8 It is a schematic diagram of the second arrangement of the cooling aluminum plate tube of the present invention; Figure 9 It is a schematic diagram of the cooling aluminum plate tube of the present invention; Figure 10 for Figure 6 The enlarged schematic diagram of point A in the middle; Figure 11 for Figure 7 The enlarged schematic diagram of point B in the middle; Figure 12 It is a schematic diagram of the structure of the expansion component of the present invention; Figure 13 for Figure 12 Another perspective diagram of the structure; Figure 14 It is a schematic diagram of the structure of the guide assembly of the present invention; Figure 15 for Figure 14 Another perspective diagram of the structure; Figure 16 for Figure 15 Schematic diagram of the structure in the figure; Figure 17 Schematic diagram of the pipe head structure of the present invention.

[0028] Among them, 1. Basic component; 101. Protective shell; 102. First mounting frame; 103. Battery; 104. First cooling aluminum plate tube; 105. First thermal conductive silicone sheet; 106. Second cooling aluminum plate tube; 107. Second thermal conductive silicone sheet; 108. Electric heating wire; 109. Fin tube radiator; 110. First pump; 111. First three-way valve; 112. Second three-way valve; 113. Fan; 114. Outer equipment box shell; 115. Second mounting frame; 116. Serpentine cooling aluminum plate tube; 117. Second pump; 118. Heat preservation and flame retardant lining; 11801. Metal mesh; 11802. Epidermal layer; 11803. Inner layer; 2. Expansion component; 201. First inner flange; 202. First folding bellows; 203. Second inner flange; 204. First outer flange; 205. Second outer flange; 206. First explosion bolt; 3. Guiding component; 301. Sinking cabin; 302. Outer protection pipe; 303. Second folding bellows; 304. Docking plate frame; 305. Pipe head; 306. Auxiliary drain port; 307. Second explosion bolt; 308. Sealing cover; 309. Anti-collision bar. Specific implementation mode

[0029] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1: As Figures 1 - 5 shown, the embodiment of the present invention provides an aerogel composite temperature-controlled battery cooling device, including Basic component 1, which includes a protective shell 101. A temperature sensor and a pressure sensor are arranged inside the protective shell 101. The protective shell 101 is formed by combining two upper and lower shells. The inner cavity top and its periphery of the upper shell, and the inner cavity bottom of the lower shell are all provided with a heat preservation and flame retardant lining 118.

[0031] The heat preservation and flame retardant lining 118 includes a sandwich formed by laminating an epidermal layer 11802 and an inner layer 11803, and a metal mesh 11801 that encapsulates the sandwich and is used for support and abrasion prevention.

[0032] Among them, in this embodiment, the epidermal layer 11802 is on the side facing the protective shell 101. The epidermal layer 11802 has at least one layer, and its preparation materials include but are not limited to aluminum foil cloth, basalt cloth, and silica gel cloth. The inner layer 11803 has at least one layer, and its preparation materials include but are not limited to high-silica oxygen felt, glass fiber felt, and aerogel felt.

[0033] In this embodiment, referring to Figures 6 - 9 , the basic component 1 further includes a mounting bracket one 102 provided inside the upper housing for stabilizing the battery 103. The batteries 103 are arranged side by side in multiple columns, and cooling aluminum plate tubes two 106 are inserted into the gaps between adjacent columns. Heat-conducting silica gel sheets two 107 are pasted on both sides of the cooling aluminum plate tubes two 106, and electric heating wires 108 are pasted on the sides of the heat-conducting silica gel sheets two 107 facing the batteries 103. Cooling aluminum plate tubes one 104 are provided on both sides of the batteries 103, and heat-conducting silica gel sheets one 105 are pasted on the sides of the cooling aluminum plate tubes one 104 facing the batteries 103. The two ends of the cooling aluminum plate tubes two 106 are respectively communicated with the cooling aluminum plate tubes one 104 on both sides.

[0034] In this embodiment, referring to Figures 10 - 11 , one end of one cooling aluminum plate tube one 104 is connected to a three-way valve one 111, and the end of the other cooling aluminum plate tube one 104 far from the three-way valve one 111 is connected to a three-way valve two 112.

[0035] Among them, one valve port of the three-way valve one 111 is connected to a pump one 110, the inlet of the pump one 110 is connected to a finned tube radiator 109, the inlet of the finned tube radiator 109 is connected to one valve port of the three-way valve two 112, and both the finned tube radiator 109 and the pump one 110 are provided at the outer end of the protective shell 101.

[0036] In this embodiment, referring again to Figures 6 - 7 , the basic component 1 further includes a mounting bracket two 115 installed inside the lower housing. A serpentine cooling aluminum plate tube 116 is installed at the top of the mounting bracket two 115. One end of the serpentine cooling aluminum plate tube 116 is connected to a pump two 117, the pump two 117 is communicated with the remaining valve port of the three-way valve two 112, and the other end of the serpentine cooling aluminum plate tube 116 is communicated with the remaining valve port of the three-way valve one 111.

[0037] During the actual operation of the battery pack, its most suitable operating temperature is between 10°C and 35°C. Low temperature will cause the battery life to be discounted, and high temperature will cause the risk of spontaneous combustion. Therefore, the temperature control of the battery pack is of utmost importance in its usage precautions.

[0038] Common heat dissipation methods are as follows.

[0039] The first is air cooling: a cooling fan is installed at one end of the power battery pack, and ventilation holes are left at the other end to accelerate the flow of air between the gaps in the battery cells and take away the high heat generated when the battery cells are working.

[0040] The second is the thermal conductive silicone sheet: add a thermal conductive silicone sheet to the top and bottom of the electrode, so that the heat that is not easy to dissipate at both ends can be conducted to the metal shell through the thermal conductive silicone pad to dissipate the heat. The heat of the power battery preheating heating sheet before starting is transferred to the battery pack through the thermal conductive silicone sheet. Although the preheating battery and thermal conductive silicone sheet have good thermal conductivity, wear resistance, and insulation performance, they cannot achieve continuous heat dissipation and thermal insulation performance in cold areas.

[0041] The third is water cooling: by wrapping the battery pack with a "water pipe", a water pump drives the coolant in the water pipe to cool or heat it and then flows back, thereby achieving the cooling and heating effect on the battery 103.

[0042] Fourth, direct cooling with refrigerant: the cold liquid circulates randomly based on the principle of thermal expansion and contraction to take away the heat, making the temperature of the entire power battery pack uniform. The strong specific heat capacity of the cold liquid absorbs the heat generated when the battery cell is working, making the entire battery pack operate within a reliable temperature range.

[0043] To solve the above problems, in combination with the existing cooling and heating technologies, the present invention installs a composite temperature control body that integrates heat dissipation, heating, heat preservation, and flame retardancy on the surface of the battery 103, thereby ensuring that the battery 103 can be used normally at low temperature, maintaining the usage time and the life of the battery 103, and increasing the flame spread time by a few minutes in the event of a fire in the battery 103, thereby gaining more safety time.

[0044] The specific situation is as follows: During normal operation, the battery 103 generates heat during operation, and then transfers the heat to the inside of the cooling aluminum plate tube two 106 through the second heat-conducting silica gel sheet 107, and transfers it to the inside of the cooling aluminum plate tube one 104 through the first heat-conducting silica gel sheet 105. Then, through the pumping action of the first pump 110, the coolant circulates inside the battery 103, so as to realize the heat exchange with the outside cold air through the finned tube radiator 109 and the fan 113, and achieve the heat dissipation effect of the battery 103. Further, the serpentine cooling aluminum plate tube 116 and the second pump 117 are connected to the above-mentioned circulation pipeline through the first three-way valve 111 and the second three-way valve 112, so as to realize the purpose of dissipating the heat below the inside of the protective shell 101. Through the heat insulation effect of the skin layer 11802 and the inner layer 11803 in the heat-insulating and flame-retardant inner lining 118, it can isolate the external high temperature in summer, reduce the burden on the heat dissipation system, ensure the stability and safety of the battery 103 during operation, and at the same time isolate the external low temperature in winter to prevent the battery 103 from being in a low-temperature environment, which may lead to a reduction in battery life. In winter, the electric heating wire 108 directly heats the battery 103 on the one hand and heats the liquid inside the cooling aluminum plate tube two 106 on the other hand. At the same time, through the control of the first three-way valve 111 and the second three-way valve 112, the liquid only circulates between the cooling aluminum plate tube one 104, the cooling aluminum plate tube two 106 and the serpentine cooling aluminum plate tube 116. On the one hand, it can make the heat spread throughout the protective shell 101 more quickly. On the other hand, it can also prevent the hot liquid from flowing out and causing heat loss. Combined with the temperature sensor, finally, a composite temperature control body with heat dissipation, heating, heat preservation, and flame retardancy is installed on the surface of the battery 103 to ensure the normal use of the battery 103 under high and low temperature environmental temperatures, and maintain the service time and the life of the battery 103.

[0045] Furthermore, when the battery 103 catches fire, due to the loss of temperature control over it, the fire will eventually spread rapidly. Under the large amount of high-temperature, high-pressure toxic smoke generated during the explosion and the burning of the flame, the passengers will quickly lose the opportunity to escape. In this embodiment, a variable sealed space is used to contain the above-mentioned smoke and flame, so as to realize the short-term temperature control inside the carriage, as shown below.

[0046] In this embodiment, referring to Figures 12 - 13 , the expansion assembly 2 includes an inner flange one 201 provided above the inner bottom port of the upper shell, an inner flange two 203 provided below the inner top port of the lower shell, a first folding bellows 202 provided between the inner flange one 201 and the inner flange two 203, an outer flange one 204 provided outside the bottom port of the upper shell, an outer flange two 205 provided outside the top port of the lower shell, and an explosion bolt one 206 used to connect the outer flange one 204 and the outer flange two 205.

[0047] Among them, the top port of the first corrugated bellows 202 is connected to the first inner flange 201, and the bottom port of the first corrugated bellows 202 is connected to the second inner flange 203. The first corrugated bellows 202 is made of aerogel material.

[0048] In this embodiment, the first corrugated bellows 202 is preferably made of superelastic cellulose aerogel material. This material prepares superelastic anisotropic cellulose multi-layer hierarchical aerogels (ACHA) through an ice-template-based petrochemical-free strategy. Biopolymer polyhydroxyalkanoate PHA particles are introduced into the cellulose network to avoid excessive densification of the cell wall. After thermal etching, PHA becomes macropores, which not only reduces the rigidity and viscosity of the wall but also acts as defect sites to guide micro-deformation and disperse internal stress during macro-deformation. In addition, thermally induced cellulose dehydration also leads to hydrogen bonding. These measures all contribute to reducing the rigidity of the wall and the adhesion between nanofibers, thus making the aerogel superelastic.

[0049] This embodiment utilizes the characteristics of the above-mentioned specific aerogel, so that when a large amount of high-pressure gas explodes, the first corrugated bellows 202 will not be easily destroyed, enabling flames and toxic high-temperature flue gas to be better confined in a closed space, avoiding the rapid spread of fire in a short time, further reducing the temperature around the vehicle battery 103 during a fire, reducing the probability of casualties, and providing time support for personnel rescue and evacuation.

[0050] Furthermore, the metal mesh 11801 is a 304 stainless steel metal mesh, and both the first three-way valve 111 and the second three-way valve 112 are T-shaped three-way ball valves.

[0051] Furthermore, a blower 113 is provided outside the finned tube radiator 109. The outside of the blower 113 is connected to an external equipment box shell 114. One end of the external equipment box shell 114 is correspondingly connected to one end of the upper shell, used for accommodating the finned tube radiator 109 and the first pump 110. A processor connected to each electrical equipment is also provided inside the external equipment box shell 114.

[0052] Embodiment 2: As Figures 1 - 2 and Figures 14 - 17 shown, the embodiment of the present invention provides a new composite temperature-controlled battery cooling device based on Embodiment 1, which in addition to including the basic component 1 and the expansion component 2.

[0053] It also includes a guide component 3, which includes a sinking cabin 301 installed at one end of the bottom of the lower shell, and two holes are opened on one side of the sinking cabin 301 that are connected to the inside of the protective shell 101, and the holes are connected with a folding bellows 2 303. The inner flange 203 is made of aerogel material, and one end of the folding bellows 2 303 is connected with a docking plate frame 304, and the center of the docking plate frame 304 is connected with a pipe head 305, and the top and both sides of the pipe head 305 are opened with auxiliary discharge ports 306, and the inside of the pipe head 305 is adhered with a sealing cover 308 by adhesive.

[0054] In this embodiment, the second folded bellows 303 is preferably made of super elastic cellulose aerogel material.

[0055] Similarly, this embodiment uses the characteristics of the above-mentioned specific aerogel, so that when the high-pressure gas explodes in large quantities, it will not easily destroy the folded bellows 2 303, so that the flame and toxic high-temperature smoke can be better guided to a place away from the vehicle, avoiding the fire from spreading to the interior of the car, and further reducing the surrounding temperature when the vehicle battery 103 catches fire, avoiding casualties and providing time support for rescue and evacuation of personnel.

[0056] The guide assembly 3 also includes an outer protective tube 302 which is sleeved on the outside of the folded bellows 303. The side of the sinking compartment 301 is connected to one end of the outer protective tube 302. The docking plate frame 304 is connected to the other end of the outer protective tube 302 through an explosive bolt 307.

[0057] The guide assembly 3 further includes an anti-collision bar 309 , which is installed on a side of the sinking compartment 301 away from the outer protective tube 302 .

[0058] When the battery 103 burns out of control, its temperature approaches one thousand degrees. At this time, common materials cannot withstand prolonged burning at all. Therefore, by directing the high-temperature toxic smoke and flames to a place away from the vehicle, the chance of escape of the personnel can be greatly improved, thereby achieving another temperature control of the battery 103.

[0059] Specifically: detonate the explosive bolt 307, and then the high-pressure smoke will flow into the folding bellows 303 through the sinking compartment 301. Due to the sealing of the sealing cover 308, the smoke cannot overflow, thereby expanding the folding bellows 303 and extending it toward the rear of the vehicle. Then, after the smoke is baked at high temperature for a certain period of time, the adhesive fails, and the sealing cover 308 is pushed open by the pressure, and finally the high-temperature toxic smoke and flames are directed to a distance, preventing the fire from spreading to the interior of the vehicle, and further reducing the surrounding temperature when the vehicle battery 103 catches fire, avoiding casualties, and providing time support for rescue and evacuation of personnel.

[0060] When this solution is in operation, it is preferably arranged with the pipe head 305 pointing towards the rear of the vehicle. During normal operation, the battery 103 generates heat during work, and then transfers the heat to the inside of the cooling aluminum plate tube two 106 through the second heat-conducting silicone sheet 107, and transfers it to the inside of the cooling aluminum plate tube one 104 through the first heat-conducting silicone sheet 105. Then, through the pumping action of the first pump 110, the coolant circulates inside the battery 103, so as to achieve heat exchange with the outside cold air through the finned tube radiator 109 and the fan 113, realizing the heat dissipation effect of the battery 103. Further, the serpentine cooling aluminum plate tube 116 and the second pump 117 are connected to the above-mentioned circulation pipeline through the first three-way valve 111 and the second three-way valve 112, so as to achieve the purpose of dissipating the heat below the inside of the protective shell 101. Through the heat insulation effect of the skin layer 11802 and the inner layer 11803 in the heat-insulating and flame-retardant lining 118, it can isolate the external high temperature in summer, reduce the burden on the heat dissipation system, ensure the stability and safety of the battery 103 during operation, and at the same time isolate the external low temperature in winter, avoiding the battery 103 being in a low-temperature environment, which may lead to a reduction in battery life. In winter, the electric heating wire 108 directly heats the battery 103 on the one hand, and heats the liquid inside the cooling aluminum plate tube two 106 on the other hand. At the same time, through the control of the first three-way valve 111 and the second three-way valve 112, the liquid only circulates between the cooling aluminum plate tube one 104, the cooling aluminum plate tube two 106 and the serpentine cooling aluminum plate tube 116. On the one hand, it can make the heat spread more quickly throughout the protective shell 101. On the other hand, it can also prevent the hot liquid from flowing out and causing heat loss. Combined with the temperature sensor, finally, a composite temperature control body with heat dissipation, heating, heat preservation and flame retardancy is installed on the surface of the battery 103 to ensure the normal use of the battery 103 at high and low ambient temperatures, and maintain the service time and the life of the battery 103.

[0061] Furthermore, when the battery 103 catches fire, the temperature control thereof will be lost, which will eventually cause the fire to spread rapidly. Under the outbreak of a large amount of high-temperature, high-pressure toxic smoke and the burning of flames, the driver and passengers will quickly lose the chance to escape. In this embodiment, the pressure sensor is used to detonate the explosive bolt 206 when a large amount of high-temperature, high-pressure toxic smoke breaks out, so that the two shells of the protective shell 101 are separated from each other, and the folded bellows 202 is propped up under the action of the smoke pressure. Through the highly elastic folded bellows 202, combined with the flame retardant and heat-insulating properties of the aerogel itself, the smoke is confined in a certain closed space at the moment of the smoke outbreak. It prevents the smoke from flowing into the car, thus buying time for the escape of personnel. At the same time, the explosive bolt 307 is detonated, and then the high-pressure smoke will flow into the folding bellows 303 through the sinking compartment 301. Due to the blocking of the sealing cover 308, the smoke cannot overflow, thereby expanding the folding bellows 303 and extending it toward the rear of the vehicle. Then, after the smoke is baked at high temperature for a certain period of time, the adhesive fails, and the sealing cover 308 is pushed open by the pressure, and finally the high-temperature toxic smoke and flames are directed to a distance, preventing the fire from spreading into the car, further reducing the surrounding temperature when the vehicle battery catches fire, avoiding casualties, and providing time support for the rescue and evacuation of personnel.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aerogel composite temperature control body battery cooling device, comprising a basic component (1), a capacity expansion component (2) and a guide component (3), characterized in that: The basic component (1) comprises a protective shell (101), a temperature sensor and a pressure sensor are arranged inside the protective shell (101), the protective shell (101) is formed by merging an upper and a lower shell, and the inner cavity top and surrounding of the upper shell and the inner cavity bottom of the lower shell are provided with a thermal insulation and flame retardant lining (118); The thermal insulation and flame retardant lining (118) comprises a core formed by a composite laminate of a skin layer (11802) and an inner layer (11803), and a metal mesh (11801) encapsulating the core and serving as a support and anti-wear device; Among them, the epidermis (11802) is on the side facing the protective shell (101), the epidermis (11802) is at least one layer, and its preparation material includes but is not limited to aluminum foil cloth, basalt cloth and silicone cloth, and the inner layer (11803) is at least one layer, and its preparation material includes but is not limited to high silica felt, glass fiber felt and aerogel felt.

2. The aerogel composite temperature control body battery cooling device according to claim 1, characterized in that: The basic component (1) also includes a mounting frame (102) provided inside the upper shell for stabilizing the battery (103); the battery (103) is arranged in multiple rows side by side, and cooling aluminum plate tubes (106) are inserted in the gaps between adjacent rows; thermal conductive silicone sheets (107) are adhered to both sides of the cooling aluminum plate tubes (106); electric heating wires (108) are adhered to the side of the thermal conductive silicone sheets (107) facing the battery (103); cooling aluminum plate tubes (104) are provided on both sides of the battery (103); thermal conductive silicone sheets (105) are adhered to the side of the cooling aluminum plate tubes (104) facing the battery (103); and both ends of the cooling aluminum plate tubes (106) are connected to the cooling aluminum plate tubes (104) on both sides respectively; One end of the cooling aluminum plate tube 1 (104) is connected to a three-way valve 1 (111), and the other end of the cooling aluminum plate tube 1 (104) away from the three-way valve 1 (111) is connected to a three-way valve 2 (112); One valve port of the three-way valve one (111) is connected to a pump one (110), an inlet of the pump one (110) is connected to a fin tube radiator (109), an inlet of the fin tube radiator (109) is connected to a valve port of the three-way valve two (112), and the fin tube radiator (109) and the pump one (110) are both arranged at one end outside the protective shell (101).

3. The aerogel composite temperature control body battery cooling device according to claim 2, characterized in that: The basic component (1) also includes a second mounting frame (115) installed inside the shell on the lower side, and a serpentine cooling aluminum plate tube (116) is installed on the top of the second mounting frame (115), and one end of the serpentine cooling aluminum plate tube (116) is connected to a second pump (117), and the second pump (117) is connected to the remaining valve port of the second three-way valve (112), and the other end of the serpentine cooling aluminum plate tube (116) is connected to the remaining valve port of the first three-way valve (111).

4. The aerogel composite temperature control body battery cooling device according to claim 3, characterized in that: The expansion assembly (2) comprises an inner flange (201) disposed above the bottom port of the upper shell, an inner flange (203) disposed below the top port of the lower shell, a folded bellows (202) disposed between the inner flange (201) and the inner flange (203), an outer flange (204) disposed outside the bottom port of the upper shell, an outer flange (205) disposed outside the top port of the lower shell, and an explosive bolt (206) used to connect the outer flange (204) and the outer flange (205); The top port of the folded bellows one (202) is connected to the inner flange one (201), the bottom port of the folded bellows one (202) is connected to the inner flange two (203), and the folded bellows one (202) is made of aerogel material.

5. The aerogel composite temperature control body battery cooling device according to claim 4, characterized in that: The guide assembly (3) comprises a sinking chamber (301) installed at one end of the bottom of the shell on the lower side, two holes are provided on one side of the sinking chamber (301) and are connected to the inside of the protective shell (101), and the holes are connected to a second folding bellows (303), the second inner flange (203) is made of aerogel material, one end of the second folding bellows (303) is connected to a docking plate frame (304), the center of the docking plate frame (304) is connected to a pipe head (305), the top of the pipe head (305) and both sides thereof are provided with auxiliary discharge ports (306), and the inside of the pipe head (305) is adhered with a sealing cover (308) by an adhesive; The guide assembly (3) further comprises an outer protective tube (302) sleeved on the outside of the second folded bellows (303); the side surface of the sinking cabin (301) is correspondingly connected to one end of the outer protective tube (302); and the docking plate frame (304) is correspondingly connected to the other end of the outer protective tube (302) via a second explosive bolt (307).

6. The aerogel composite temperature control body battery cooling device according to claim 5, characterized in that: The metal mesh (11801) is a 304 stainless steel metal mesh, and the three-way valve one (111) and the three-way valve two (112) are both T-type three-way ball valves.

7. The aerogel composite temperature control body battery cooling device according to claim 5, characterized in that: A fan (113) is provided on the outer side of the fin tube radiator (109); The outside of the fan (113) is connected to an external device casing (114), one end of which is correspondingly connected to one end of the upper shell, and is used to accommodate a fin tube radiator (109) and a pump (110).

8. The aerogel composite temperature control body battery cooling device according to claim 7, characterized in that: The external device housing (114) is also provided with a processor connected to each electrical device; The guide assembly (3) further comprises an anti-collision bar (309), wherein the anti-collision bar (309) is installed on a side of the sinking compartment (301) away from the outer protective tube (302).

9. The aerogel composite temperature control body battery cooling device according to claim 5, characterized in that: The folded bellows 1 (202) and the folded bellows 2 (303) are preferably made of superelastic cellulose aerogel material.

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