High-protection air-cooled battery pack

Abstract

The invention discloses a high-protection air-cooled battery pack, and relates to the technical field of battery packs, the high-protection air-cooled battery pack comprises a battery pack body, the battery pack body comprises a shell, one side of the shell is fixedly connected with a baffle plate, one side of the baffle plate is fixedly connected with an air-cooled fan, an inner cavity of the shell is fixedly connected with a battery block, and the inner cavity of the shell is fixedly connected with the air-cooled fan. The top of the shell is fixedly connected with a protective shell; according to the high-protection air-cooled battery pack, through cooperative use of the air suction unit and the sealing unit, the purpose of preventing the positive and negative electrodes of the battery cell from being oxidized can be achieved, so that the positive and negative electrodes of the battery cell cannot be exposed in the air, and the contact between the battery cell and the air is reduced, thereby reducing the oxidation of the positive and negative electrodes and preventing the surfaces of the positive and negative electrodes from generating oxidation layers easily; the internal resistance and the heating value are effectively prevented from being increased, so that short circuit of a circuit is prevented, oxygen in the battery pack can be reduced, continuous combustion of open fire is prevented, and the safety of the battery pack in use is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packs, and particularly to an air-cooled battery pack with high protection. Background Art

[0002] A battery pack is an energy storage device formed by combining multiple battery cells in series and parallel, and integrating a battery management system, a thermal management system, structural components and a circuit protection module. It is a core component in the fields of modern electronic devices, energy storage systems, etc., providing efficient and stable electrical energy output.

[0003] When the existing battery pack is in use, the positive and negative electrodes of the battery cells are exposed to the air. Prolonged use easily causes oxidation of the positive and negative electrodes, resulting in the appearance of an oxide layer on the surface of the positive and negative electrodes, increasing the internal resistance and heat generation of the positive and negative electrodes of the battery cells, and prone to phenomena such as short circuit and fire of the circuit, making it inconvenient to extinguish the combustion of the battery pack in time, and reducing the safety of the battery pack during use. For this reason, we propose an air-cooled battery pack with high protection.

[0004] Combining the above problems, we will find that it is very difficult for the existing air-cooled battery packs on the market to avoid the above-mentioned problems simultaneously during use, and even if they can be solved, they need to be solved with the cooperation of external tools, thus unable to achieve the desired effect. Therefore, we propose an air-cooled battery pack with high protection. Summary of the Invention

[0005] The purpose of the present invention is to provide an air-cooled battery pack with high protection to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An air-cooled battery pack with high protection, including a battery pack body. The battery pack body includes a housing. One side of the housing is fixedly connected with a baffle. One side of the baffle is fixedly connected with an air-cooled fan. The inner cavity of the housing is fixedly connected with battery blocks. The top of the housing is fixedly connected with a protective shell. The surface of the protective shell is fixedly inlaid with a connecting plate. One side of the housing is provided with a protection mechanism; The protection mechanism includes an air suction unit, which is arranged on one side of the housing. The air suction unit includes a negative pressure box, one side of the negative pressure box is fixedly connected to one side of the housing, a small vacuum pump is fixedly connected to the top of the negative pressure box, the air inlet end of the small vacuum pump is fixedly communicated with a connecting pipe, one end of the connecting pipe is fixedly communicated with the top of the negative pressure box, both sides of the negative pressure box are fixedly communicated with air suction pipes, one end of the air suction pipe penetrates into the inner cavity of the protective shell, a telescopic pipe is fixedly communicated with the surface of the air suction pipe, one end of the telescopic pipe penetrates into the inner cavity of the housing and is fixedly communicated with an air suction hood, a first sealing gasket is fixedly connected to the bottom of the air suction hood, the air suction hood is sleeved on the surfaces of the positive and negative electrodes of the battery block, and the air suction hood is in contact with the top of the battery block; The protection mechanism further includes a sealing unit, which is arranged on both sides of the housing. The sealing unit is used in cooperation with the air suction unit. A L-shaped plate is fixedly connected to one side of the housing, a driving motor is fixedly connected to the surface of the L-shaped plate, the output of the driving motor penetrates through the L-shaped plate and is fixedly connected to a long rod, one end of the long rod penetrates through the protective shell, a pull rope is wound around the surface of the long rod, and one end of the pull rope penetrates into the inner cavity of the housing; A spraying mechanism is arranged in the inner cavity of the housing.

[0007] Preferably, the number of the telescopic pipes is several. The air suction pipes and the telescopic pipes are both made of fire-resistant materials. An H-shaped plate is arranged in the inner cavity of the housing, and the H-shaped plate is fixedly connected to the surface of the air suction hood.

[0008] Preferably, smoke sensors are fixedly connected to both sides of the inner cavity of the housing. Four telescopic rods are fixedly connected to the surface of the H-shaped plate. One end of each telescopic rod penetrates through the top of the housing, and a spring is movably sleeved on the surface of the telescopic rod. Both ends of the spring are fixedly connected to the H-shaped plate and the inner wall of the housing respectively.

[0009] Preferably, one end of the pull rope is fixedly connected to the surface of the H-shaped plate, the other end of the pull rope is fixedly connected to the surface of the long rod, a first short plate is movably sleeved on one end of the long rod through a bearing, and the bottom of the first short plate is fixedly connected to the top of the housing.

[0010] Preferably, the sealing unit includes two first sealing shells, which are respectively arranged on both sides of the housing. A second sealing gasket is fixedly connected to one side of each first sealing shell. Lifting plates are fixedly connected to both sides of each first sealing shell. Two support frames are fixedly connected to one side of the housing. An adjusting threaded rod is rotatably connected to the surface of each support frame through a bearing, and one end of each lifting plate is threadedly sleeved on the surface of the adjusting threaded rod.

[0011] Preferably, four linkage rods are provided at the top of the housing. Two second short plates are movably sleeved on the surface of the linkage rod through bearings. One end of the second short plate is fixedly connected to the top of the housing. Second bevel gears are fixedly sleeved at both ends of the linkage rod. First bevel gears are fixedly sleeved at one end of the adjusting threaded rod and both ends of the long rod. The first bevel gear meshes with the second bevel gear. The thread directions of the adjusting threaded rods on both sides of the housing are oppositely arranged.

[0012] Preferably, a second sealing shell is provided on one side of the baffle. A connecting rod is fixedly connected to one side of the first sealing shell. One end of the connecting rod is fixedly connected to the surface of the second sealing shell. A third sealing gasket is fixedly connected to one side of the second sealing shell. A limiting shell is fixedly connected to the surface of the baffle. The limiting shell is used in cooperation with the second sealing shell.

[0013] Preferably, the spraying mechanism includes a liquid storage bottle. The liquid storage bottle is fixedly connected to the top of the housing. The number of the liquid storage bottles is two. One end of the liquid storage bottle is fixedly communicated with a one-way solenoid valve. One end of the one-way solenoid valve is fixedly communicated with a delivery pipe. A long pipe is fixedly connected to the inner cavity of the housing. One end of the delivery pipe penetrates through to the inner cavity of the housing and is fixedly communicated with the surface of the long pipe. Both the delivery pipe and the long pipe are made of refractory materials.

[0014] Preferably, nozzles are fixedly communicated with the surface of the long pipe. The number of the nozzles is several. A reciprocating screw rod is rotatably connected to the inner cavity of the long pipe through a bearing. A piston is movably sleeved on the surface of the reciprocating screw rod. A guiding groove for cooperating with the piston is opened in the inner cavity of the long pipe. A guiding block is fixedly connected to the inner wall of the piston. The guiding block is used in cooperation with the reciprocating screw rod.

[0015] Preferably, one end of the reciprocating screw rod penetrates through to the outside of the long pipe and is fixedly sleeved with a second synchronous wheel. A short rod is fixedly connected to one side of the air-cooling fan. A first synchronous wheel is fixedly sleeved on the surface of the short rod. A synchronous belt is arranged on one side of the air-cooling fan. The synchronous belt is sleeved on the surfaces of the first synchronous wheel and the second synchronous wheel in a transmission manner.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By using the cooperation of the air suction unit and the sealing unit, the present invention can achieve the purpose of preventing the oxidation of the positive and negative electrodes of the battery cell, so that the positive and negative electrodes of the battery cell are not exposed to the air, reducing the contact between the battery cell and the air, thereby reducing the oxidation of the positive and negative electrodes, making it not easy to form an oxide layer on the surface of the positive and negative electrodes, effectively preventing the increase of internal resistance and heat generation, thus preventing the short circuit of the circuit. At the same time, it can also reduce the oxygen in the battery pack, prevent the continuous combustion of open fire, and improve the safety of the battery pack during use.

[0017] 2. By providing a spraying mechanism, the present invention can effectively achieve the purpose of extinguishing fire. When an open fire appears, it can promptly spray and extinguish the fire, effectively preventing the spread of the fire, so that the continuous combustion inside the battery pack is not caused, thereby preventing the explosion of the battery pack and ensuring the safety of the battery pack during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the rear view structure of the present invention; Figure 3 is a schematic diagram of the partial left view structure of the present invention; Figure 4 is a schematic diagram of the internal structure of the housing of the present invention; Figure 5 is a schematic diagram of the structure of the air intake unit of the present invention; Figure 6 is of the present invention Figure 5 an enlarged view of A in; Figure 7 is a schematic diagram of the structure of the sealing unit of the present invention; Figure 8 is a schematic diagram of the structure of the spraying mechanism of the present invention; Figure 9 is a schematic diagram of the sectional view of the long tube of the present invention; Figure 10 is of the present invention Figure 9 an enlarged view of B in; Figure 11 is a schematic diagram of the partial structure of the reciprocating screw of the present invention; Figure 12 is of the present invention Figure 11 an enlarged view of C in.

[0019] In the figure: 1. Battery pack body; 101. Housing; 102. Baffle; 103. Air-cooled fan; 104. Battery block; 2. Protection mechanism; 21. Suction unit; 2101. Negative pressure box; 2102. Suction pipe; 2103. Small vacuum pump; 2104. Connecting pipe; 2105. Driving motor; 2106. L-shaped plate; 2107. Long rod; 2108. Pulling rope; 2109. H-shaped plate; 2110. Suction hood; 2111. Telescopic pipe; 2112. Smoke sensor; 2113. First gasket; 2114. Telescopic rod; 2115. Spring; 2116. First short board; 22. Sealing unit; 2201. First sealing shell; 2202. Second gasket; 2203. First bevel gear; 2204. Second short board; 2205. Third gasket; 2206. Second sealing shell; 2207. Connecting rod; 2208. Second bevel gear; 2209. Linking rod; 2210. Support frame; 2211. Adjusting threaded rod; 2212. Lifting plate; 2213. Limiting shell; 3. Protection shell; 4. Connecting plate; 5. Spraying mechanism; 501. Liquid storage bottle; 502. Sprinkler head; 503. Long pipe; 504. One-way solenoid valve; 505. Delivery pipe; 506. Short rod; 507. First synchronous pulley; 508. Second synchronous pulley; 509. Timing belt; 510. Reciprocating screw rod; 511. Piston; 512. Guide groove; 513. Guide block. Detailed implementation manners

[0020] 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.

[0021] Embodiment 1: Please refer to Figures 1 - 12 , the present invention provides a technical solution: a highly protected air-cooled battery pack, including a battery pack body 1, the battery pack body 1 includes a housing 101, one side of the housing 101 is fixedly connected with a baffle 102, one side of the baffle 102 is fixedly connected with an air-cooled fan 103, the inner cavity of the housing 101 is fixedly connected with a battery block 104, the top of the housing 101 is fixedly connected with a protection shell 3, the surface of the protection shell 3 is fixedly inlaid with a connecting plate 4, and one side of the housing 101 is provided with a protection mechanism 2; The protection mechanism 2 includes an air suction unit 21. The air suction unit 21 is arranged on one side of the housing 101. The air suction unit 21 includes a negative pressure box 2101. One side of the negative pressure box 2101 is fixedly connected to one side of the housing 101. A small vacuum pump 2103 is fixedly connected to the top of the negative pressure box 2101. The air inlet end of the small vacuum pump 2103 is fixedly communicated with a connecting pipe 2104. One end of the connecting pipe 2104 is fixedly communicated with the top of the negative pressure box 2101. Both sides of the negative pressure box 2101 are fixedly communicated with air suction pipes 2102. One end of the air suction pipe 2102 penetrates into the inner cavity of the protective shell 3. A telescopic pipe 2111 is fixedly communicated with the surface of the air suction pipe 2102. One end of the telescopic pipe 2111 penetrates into the inner cavity of the housing 101 and is fixedly communicated with an air suction cover 2110. A first gasket 2113 is fixedly connected to the bottom of the air suction cover 2110. The air suction cover 2110 is sleeved on the surfaces of the positive and negative electrodes of the battery block 104. The air suction cover 2110 is in contact with the top of the battery block 104; The protection mechanism 2 further includes a sealing unit 22. The sealing unit 22 is arranged on both sides of the housing 101. The sealing unit 22 is used in cooperation with the air suction unit 21. An L-shaped plate 2106 is fixedly connected to one side of the housing 101. A driving motor 2105 is fixedly connected to the surface of the L-shaped plate 2106. The output of the driving motor 2105 penetrates through the L-shaped plate 2106 and is fixedly connected to a long rod 2107. One end of the long rod 2107 penetrates through the protective shell 3. A pull rope 2108 is wound around the surface of the long rod 2107. One end of the pull rope 2108 penetrates into the inner cavity of the housing 101. By providing the first gasket 2113, the sealing effect of the air suction cover 2110 can be improved, so that it can better seal the positive and negative electrodes of the battery core, thereby reducing the oxidation of the positive and negative electrodes, effectively preventing the generation of an oxide layer, preventing short circuits of the circuit, and ensuring the stable operation of the battery pack and improving safety.

[0022] As a further limitation of the present invention, the number of the telescopic pipes 2111 is several. The air suction pipes 2102 and the telescopic pipes 2111 are both made of fire-resistant materials. An H-shaped plate 2109 is arranged in the inner cavity of the housing 101. The H-shaped plate 2109 is fixedly connected to the surface of the air suction cover 2110.

[0023] On both sides of the inner cavity of the housing 101, smoke sensors 2112 are fixedly connected. On the surface of the H-shaped plate 2109, telescopic rods 2114 are fixedly connected. The number of the telescopic rods 2114 is four. One end of each telescopic rod 2114 penetrates through the top of the housing 101. A spring 2115 is movably sleeved on the surface of the telescopic rod 2114. Two ends of the spring 2115 are respectively fixedly connected with the H-shaped plate 2109 and the inner wall of the housing 101. By arranging the spring 2115, the telescopic rod 2114 can apply pressure to the H-shaped plate 2109, so as to ensure the close contact between the suction hood 2110 and the surface of the battery cell, thus ensuring the air suction effect of the suction hood 2110, ensuring that the positive and negative electrodes of the battery cell are not easily oxidized, reducing the generation of the oxide layer, effectively protecting the positive and negative electrodes of the battery cell, and improving the safety of the battery pack during use.

[0024] One end of the pull rope 2108 is fixedly connected with the surface of the H-shaped plate 2109. The other end of the pull rope 2108 is fixedly connected with the surface of the long rod 2107. One end of the long rod 2107 is movably sleeved with a first short plate 2116 through a bearing. The bottom of the first short plate 2116 is fixedly connected with the top of the housing 101.

[0025] The sealing unit 22 includes two first sealing shells 2201. The two first sealing shells 2201 are respectively arranged on both sides of the housing 101. On one side of the first sealing shell 2201, a second sealing pad 2202 is fixedly connected. On both sides of the first sealing shell 2201, lifting plates 2212 are fixedly connected. On one side of the housing 101, two support frames 2210 are fixedly connected. On the surface of the support frame 2210, an adjusting threaded rod 2211 is rotatably connected through a bearing. One end of the lifting plate 2212 is threadedly sleeved on the surface of the adjusting threaded rod 2211. By arranging the first sealing shell 2201, the two sides of the housing 101 can be effectively sealed. When the housing 101 is evacuated, the oxygen in the housing 101 can be effectively extracted, so as to inhibit the spread of the fire, effectively extinguish the fire, and ensure safety.

[0026] On the top of the housing 101, four linkage rods 2209 are arranged. On the surface of the linkage rod 2209, two second short plates 2204 are movably sleeved through bearings. One end of the second short plate 2204 is fixedly connected with the top of the housing 101. On both ends of the linkage rod 2209, second bevel gears 2208 are fixedly sleeved. On one end of the adjusting threaded rod 2211 and both ends of the long rod 2107, first bevel gears 2203 are fixedly sleeved. The first bevel gear 2203 meshes with the second bevel gear 2208. The thread directions of the adjusting threaded rods 2211 on both sides of the housing 101 are arranged in opposite directions.

[0027] A second sealing shell 2206 is provided on one side of the baffle 102. One side of the first sealing shell 2201 is fixedly connected to a connecting rod 2207. One end of the connecting rod 2207 is fixedly connected to the surface of the second sealing shell 2206. One side of the second sealing shell 2206 is fixedly connected to a third sealing gasket 2205. A limiting shell 2213 is fixedly connected to the surface of the baffle 102, and the limiting shell 2213 is used in cooperation with the second sealing shell 2206.

[0028] By setting the cooperation of the air suction unit 21 and the sealing unit 22, the purpose of preventing the oxidation of the positive and negative electrodes of the battery cell can be achieved, so that the positive and negative electrodes of the battery cell are not exposed to the air, reducing the contact between the battery cell and the air, thereby reducing the oxidation of the positive and negative electrodes, making it not easy to form an oxide layer on the surface of the positive and negative electrodes, effectively preventing the increase of internal resistance and heat generation, thus preventing the short circuit of the circuit. At the same time, it can also reduce the oxygen in the battery pack, prevent the continuous combustion of open fire, and improve the safety of the battery pack during use.

[0029] The specific implementation mode of this embodiment is as follows: When the battery pack body 1 is in use, the initial position of the air suction hood 2110 is in contact with the top of the battery block 104, so as to cover and seal the positive and negative electrodes on the top of the battery block 104. Through the operation of the small vacuum pump 2103, negative pressure is generated in the negative pressure box 2101, so that the suction pipe 2102 generates suction force to suck the air inside the air suction hood 2110, reducing the oxygen in the air suction hood 2110 and achieving a state close to vacuum. Since the air suction hood 2110 covers and seals the positive and negative electrodes of the battery block 104, reducing the contact between the positive and negative electrodes of the battery block 104 and oxygen, it effectively prevents the oxidation of the positive and negative electrodes of the battery block 104 caused by long-term contact with oxygen during use, and effectively protects the positive and negative electrodes of the battery block 104; When a short - circuit fire occurs, the smoke sensor 2112 detects the fire and drives the driving motor 2105 to operate, causing the long rod 2107 to rotate. Thereby, the pull rope 2108 can be wound up, enabling the H - shaped plate 2109 to move upward, squeezing the telescopic rod 2114 and the spring 2115 to make them contract. At the same time, the telescopic tube 2111 contracts, and the suction hood 2110 moves upward, moving it away from the battery block 104, so that the suction hood 2110 can move to the top of the inner cavity of the housing 101. Through the operation of the small vacuum pump 2103, the suction hood 2110 can suck the air inside the housing 101, thereby reducing the oxygen content inside the housing 101. At the same time, the first bevel gear 2203 on the long rod 2107 rotates, causing the meshing second bevel gear 2208 to rotate, making the linkage rod 2209 rotate. Through another second bevel gear 2208 driving another first bevel gear 2203 to rotate, the adjusting threaded rod 2211 rotates, causing the lifting plate 2212 to move downward, thereby sealing the ventilation holes on both sides of the housing 101. At the same time, the connecting rod 2207 follows the first sealing shell 2201 to descend, driving the second sealing shell 2206 to descend, so that the second sealing shell 2206 enters the limiting shell 2213, thereby sealing the ventilation opening of the air - cooling fan 103, enabling the suction hood 2110 to better extract the air inside the housing 101, thereby reducing the oxygen content inside the housing 101, making the inside of the housing 101 approach a vacuum state, reducing the combustion support for the fire, so that the open fire inside the housing 101 will not continue to expand, and making it difficult for the open fire to burn, achieving the effect of extinguishing the fire.

[0030] Embodiment 2: Please refer to Figures 1 - 12 , the present invention provides a technical solution: a highly - protected air - cooled battery pack, and the present invention makes corresponding improvements to the technical problems mentioned in the background technology.

[0031] As a further limitation of the present invention, a spraying mechanism 5 is provided in the inner cavity of the housing 101; The spraying mechanism 5 includes a liquid storage bottle 501, the liquid storage bottle 501 is fixedly connected to the top of the housing 101, the number of the liquid storage bottles 501 is two, one end of the liquid storage bottle 501 is fixedly communicated with a one - way solenoid valve 504, one end of the one - way solenoid valve 504 is fixedly communicated with a delivery pipe 505, a long pipe 503 is fixedly connected to the inner cavity of the housing 101, one end of the delivery pipe 505 penetrates into the inner cavity of the housing 101 and is fixedly communicated with the surface of the long pipe 503, and both the delivery pipe 505 and the long pipe 503 are made of fire - resistant materials.

[0032] The surface of the long tube 503 is fixedly connected to a nozzle 502, and the number of nozzles 502 is several. The inner cavity of the long tube 503 is rotatably connected to a reciprocating screw 510 through a bearing. A piston 511 is movably sleeved on the surface of the reciprocating screw 510. The inner cavity of the long tube 503 is provided with a guide groove 512 used in conjunction with the piston 511. The inner wall of the piston 511 is fixedly connected to a guide block 513, and the guide block 513 is used in conjunction with the reciprocating screw 510. By providing the guide groove 512, the piston 511 can be guided so that the piston 511 can move back and forth more stably. After the perfluorohexanone fire extinguishing liquid stored in the liquid storage bottle 501 enters the long tube 503, the perfluorohexanone fire extinguishing liquid can be effectively sprayed out from the nozzle 502 to extinguish the fire, thereby achieving effective fire extinguishing.

[0033] One end of the reciprocating screw 510 passes through the outside of the long tube 503 and is fixedly sleeved with a second synchronous wheel 508. A short rod 506 is fixedly connected to one side of the air-cooling fan 103. A first synchronous wheel 507 is fixedly sleeved on the surface of the short rod 506. A synchronous belt 509 is provided on one side of the air-cooling fan 103. The synchronous belt 509 is driven by sleeves on the surfaces of the first synchronous wheel 507 and the second synchronous wheel 508.

[0034] By providing the spraying mechanism 5, the purpose of effective fire extinguishing can be achieved. When an open flame occurs, the fire can be extinguished by spraying in time, which effectively prevents the fire from spreading and causes continuous combustion inside the battery pack, thereby preventing the battery pack from exploding and ensuring the safety of the battery pack when in use.

[0035] The specific implementation of this embodiment is as follows: after the smoke sensor 2112 detects a fire, the one-way solenoid valve 504 is opened, and the perfluorohexanone fire extinguishing liquid enters the long tube 503 through the delivery pipe 505. The operation of the air-cooling fan 103 drives the short rod 506 to rotate, and the first synchronous wheel 507 on it rotates, so that the synchronous belt 509 drives the second synchronous wheel 508 to rotate, and the reciprocating screw 510 rotates. Under the guidance of the guide block 513, the piston 511 can move back and forth in the long tube 503, thereby squeezing the perfluorohexanone fire extinguishing liquid entering the long tube 503, allowing it to flow in the long tube 503, and in the activity When the plug 511 moves back and forth, the piston 511 squeezes the perfluorohexanone fire extinguishing liquid on one side so that the perfluorohexanone fire extinguishing liquid can be sprayed out through multiple nozzles 502, thereby spraying it into the shell 101 and absorbing a large amount of heat. The perfluorohexanone fire extinguishing liquid on the other side can fill the other side. When the piston 511 moves back, the perfluorohexanone fire extinguishing liquid on the other side can be squeezed again to be sprayed out from the nozzle 502. When it contacts the surface of the burning object, the gasification process will take away the heat around the burning object, thereby reducing the temperature of the burning object, so that the fire in the shell 101 can be effectively extinguished, ensuring the safety of the battery pack body 1 during use.

[0036] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly protected air-cooled battery pack, comprising a battery pack body (1), characterized in that: The battery pack body (1) includes a housing (101). One side of the housing (101) is fixedly connected to a baffle (102). One side of the baffle (102) is fixedly connected to an air-cooling fan (103). The inner cavity of the housing (101) is fixedly connected to battery blocks (104). The top of the housing (101) is fixedly connected to a protective case (3). The surface of the protective case (3) is fixedly inlaid with a connecting plate (4). One side of the housing (101) is provided with a protection mechanism (2). The protection mechanism (2) includes an air suction unit (21). The air suction unit (21) is arranged on one side of the housing (101). The air suction unit (21) includes a negative pressure box (2101). One side of the negative pressure box (2101) is fixedly connected to one side of the housing (101). The top of the negative pressure box (2101) is fixedly connected to a small vacuum pump (2103). The air inlet end of the small vacuum pump (2103) is fixedly communicated with a connecting pipe (2104). One end of the connecting pipe (2104) is fixedly communicated with the top of the negative pressure box (2101). Both sides of the negative pressure box (2101) are fixedly communicated with air suction pipes (2102). One end of the air suction pipe (2102) penetrates into the inner cavity of the protective case (3). The surface of the air suction pipe (2102) is fixedly communicated with a telescopic pipe (2111). One end of the telescopic pipe (2111) penetrates into the inner cavity of the housing (101) and is fixedly communicated with an air suction hood (2110). The bottom of the air suction hood (2110) is fixedly connected to a first gasket (2113). The air suction hood (2110) is sleeved on the surfaces of the positive and negative electrodes of the battery block (104). The air suction hood (2110) is in contact with the top of the battery block (104). The protection mechanism (2) further includes a sealing unit (22). The sealing unit (22) is arranged on both sides of the housing (101). The sealing unit (22) is used in cooperation with the air suction unit (21). One side of the housing (101) is fixedly connected to an L-shaped plate (2106). The surface of the L-shaped plate (2106) is fixedly connected to a driving motor (2105). The output of the driving motor (2105) penetrates through the L-shaped plate (2106) and is fixedly connected to a long rod (2107). One end of the long rod (2107) penetrates through the protective case (3). A pull rope (2108) is wound around the surface of the long rod (2107). One end of the pull rope (2108) penetrates into the inner cavity of the housing (101). A spraying mechanism (5) is arranged in the inner cavity of the housing (101).

2. The high-protection air-cooled battery pack according to claim 1, wherein: The number of the telescopic pipes (2111) is several. The air suction pipes (2102) and the telescopic pipes (2111) are both made of fire-resistant materials. An H-shaped plate (2109) is arranged in the inner cavity of the housing (101). The H-shaped plate (2109) is fixedly connected to the surface of the air suction hood (2110).

3. The high-protection air-cooled battery pack according to claim 2, wherein: On both sides of the inner cavity of the housing (101), smoke sensors (2112) are fixedly connected. On the surface of the H-shaped plate (2109), telescopic rods (2114) are fixedly connected. The number of the telescopic rods (2114) is four. One end of the telescopic rod (2114) penetrates through the top of the housing (101). A spring (2115) is movably sleeved on the surface of the telescopic rod (2114). Both ends of the spring (2115) are fixedly connected to the H-shaped plate (2109) and the inner wall of the housing (101) respectively.

4. The highly protected air-cooled battery pack according to claim 3, wherein: One end of the pull rope (2108) is fixedly connected to the surface of the H-shaped plate (2109), and the other end of the pull rope (2108) is fixedly connected to the surface of the long rod (2107). One end of the long rod (2107) is movably sleeved with a first short plate (2116) through a bearing. The bottom of the first short plate (2116) is fixedly connected to the top of the housing (101).

5. The high-protection air-cooled battery pack according to claim 1, characterized in that: The sealing unit (22) includes two first sealing shells (2201). The two first sealing shells (2201) are respectively arranged on both sides of the housing (101). On one side of the first sealing shell (2201), a second sealing pad (2202) is fixedly connected. On both sides of the first sealing shell (2201), lifting plates (2212) are fixedly connected. On one side of the housing (101), two support frames (2210) are fixedly connected. On the surface of the support frame (2210), an adjusting threaded rod (2211) is rotatably connected through a bearing. One end of the lifting plate (2212) is threadedly sleeved on the surface of the adjusting threaded rod (2211).

6. The high-protection air-cooled battery pack according to claim 5, wherein: Four linkage rods (2209) are arranged on the top of the housing (101). On the surface of the linkage rod (2209), two second short plates (2204) are movably sleeved through bearings. One end of the second short plate (2204) is fixedly connected to the top of the housing (101). On both ends of the linkage rod (2209), second bevel gears (2208) are fixedly sleeved. On one end of the adjusting threaded rod (2211) and both ends of the long rod (2107), first bevel gears (2203) are fixedly sleeved. The first bevel gear (2203) meshes with the second bevel gear (2208). The thread directions of the adjusting threaded rods (2211) on both sides of the housing (101) are oppositely arranged.

7. The highly protected air-cooled battery pack according to claim 6, wherein: On one side of the baffle (102), a second sealing shell (2206) is arranged. On one side of the first sealing shell (2201), a connecting rod (2207) is fixedly connected. One end of the connecting rod (2207) is fixedly connected to the surface of the second sealing shell (2206). On one side of the second sealing shell (2206), a third sealing pad (2205) is fixedly connected. On the surface of the baffle (102), a limiting shell (2213) is fixedly connected. The limiting shell (2213) is used in cooperation with the second sealing shell (2206).

8. A highly protected air-cooled battery pack according to claim 1, characterized in that: The spraying mechanism (5) includes a liquid storage bottle (501), the liquid storage bottle (501) is fixedly connected to the top of the housing (101), the number of the liquid storage bottles (501) is two, one end of the liquid storage bottle (501) is fixedly communicated with a one-way solenoid valve (504), one end of the one-way solenoid valve (504) is fixedly communicated with a delivery pipe (505), a long pipe (503) is fixedly connected to the inner cavity of the housing (101), one end of the delivery pipe (505) penetrates into the inner cavity of the housing (101) and is fixedly communicated with the surface of the long pipe (503), and both the delivery pipe (505) and the long pipe (503) are made of refractory materials.

9. The highly protected air-cooled battery pack according to claim 8, wherein: Nozzles (502) are fixedly communicated with the surface of the long pipe (503), the number of the nozzles (502) is several, a reciprocating screw rod (510) is rotatably connected to the inner cavity of the long pipe (503) through a bearing, a piston (511) is movably sleeved on the surface of the reciprocating screw rod (510), a guide groove (512) for cooperating with the piston (511) is opened in the inner cavity of the long pipe (503), a guide block (513) is fixedly connected to the inner wall of the piston (511), and the guide block (513) cooperates with the reciprocating screw rod (510).

10. The high-protection air-cooled battery pack according to claim 9, characterized in that: One end of the reciprocating screw rod (510) penetrates to the outside of the long pipe (503) and is fixedly sleeved with a second synchronous pulley (508), a short rod (506) is fixedly connected to one side of the air-cooled fan (103), a first synchronous pulley (507) is fixedly sleeved on the surface of the short rod (506), a synchronous belt (509) is arranged on one side of the air-cooled fan (103), and the synchronous belt (509) is sleeved on the surfaces of the first synchronous pulley (507) and the second synchronous pulley (508) in a transmission manner.

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