A highly protected air-cooled battery pack

Abstract

The present invention discloses a high-protection air-cooled battery pack, which relates to the technical field of battery packs and includes a battery pack body. The battery pack body includes a shell, one side of the shell is fixedly connected to a baffle, one side of the baffle is fixedly connected to an air-cooling fan, the inner cavity of the shell is fixedly connected to a battery block, and the top of the shell is fixedly connected to a protective shell; this high-protection air-cooled battery pack can achieve the purpose of preventing the oxidation of the positive and negative poles of the battery cell by setting an air intake unit and a sealing unit for coordinated use, so that the positive and negative poles of the battery cell will not be exposed to the air, reducing the contact between the battery cell and the air, thereby reducing the oxidation of the positive and negative poles, and making it less likely for an oxide layer to appear on the surface of the positive and negative poles, effectively preventing an increase in internal resistance and heat generation, thereby preventing a short circuit in the circuit, and at the same time reducing the oxygen in the battery pack, preventing the continuous combustion of an open flame, and improving the safety of the battery pack during use.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packs, and in particular to a highly protected air-cooled battery pack. Background Art

[0002] A battery pack is an energy storage device composed of multiple battery cells connected in series and parallel, and integrates a battery management system, thermal management system, structural parts and circuit protection modules. It is a core component in modern electronic equipment, energy storage systems and other fields, providing efficient and stable power output.

[0003] Existing battery packs expose the positive and negative electrodes to air during use. Prolonged use can easily lead to oxidation of the electrodes, resulting in the formation of oxide layers on their surfaces. This increases the internal resistance and heat generation of the positive and negative electrodes, making them susceptible to short circuits and fires. This makes it difficult to extinguish fires in the battery pack, reducing its safety during use. To address this issue, we propose a highly protected air-cooled battery pack.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing air-cooled battery packs on the market. Even if they can be solved, they need to be solved with the help of external tools, which makes it impossible to achieve the desired effect. Therefore, we propose a highly protected air-cooled battery pack. Summary of the Invention

[0005] The object of the present invention is to provide a highly protected air-cooled battery pack to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a highly protected air-cooled battery pack, comprising a battery pack body, the battery pack body comprising a housing, a baffle fixedly connected to one side of the housing, an air-cooling fan fixedly connected to one side of the baffle, a battery block fixedly connected to the inner cavity of the housing, a protective shell fixedly connected to the top of the housing, a connecting plate fixedly embedded in the surface of the protective shell, and a protective mechanism provided on one side of the housing;

[0007] The protective mechanism includes an air suction unit, which is arranged on one side of the shell, and the air suction unit includes a negative pressure box, one side of the negative pressure box is fixedly connected to one side of the shell, 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 connected to a connecting pipe, one end of the connecting pipe is fixedly connected to the top of the negative pressure box, both sides of the negative pressure box are fixedly connected to air suction pipes, one end of the air suction pipe passes through the inner cavity of the protective shell, the surface of the air suction pipe is fixedly connected to a telescopic pipe, one end of the telescopic pipe passes through the inner cavity of the shell and is fixedly connected to an air suction hood, the bottom of the air suction hood is fixedly connected to a first sealing gasket, the air suction hood is sleeved on the surfaces of the positive and negative poles of the battery block, and the air suction hood is in contact with the top of the battery block;

[0008] The protective mechanism also includes a sealing unit, which is arranged on both sides of the shell and is used in conjunction with the air suction unit. An L-shaped plate is fixedly connected to one side of the shell, and a drive motor is fixedly connected to the surface of the L-shaped plate. The output of the drive motor passes through the L-shaped plate and is fixedly connected to a long rod. One end of the long rod passes through the protective shell. A pull rope is wrapped around the surface of the long rod, and one end of the pull rope passes through the inner cavity of the shell.

[0009] The inner cavity of the shell is provided with a spraying mechanism.

[0010] Preferably, there are several telescopic tubes, the air intake pipe and the telescopic tube are both made of refractory materials, the inner cavity of the shell is provided with an H-shaped plate, and the H-shaped plate is fixedly connected to the surface of the air intake hood.

[0011] Preferably, smoke sensors are fixedly connected to both sides of the inner cavity of the shell, and telescopic rods are fixedly connected to the surface of the H-shaped plate. There are four telescopic rods, one end of which passes through the top of the shell, and a spring is movably sleeved on the surface of the telescopic rod. The two ends of the spring are respectively fixedly connected to the H-shaped plate and the inner wall of the shell.

[0012] Preferably, one end of the pull rope is fixedly connected to the surface of the H-shaped plate, and the other end of the pull rope is fixedly connected to the surface of the long rod. One end of the long rod is provided with a first short plate through a bearing movable sleeve, and the bottom of the first short plate is fixedly connected to the top of the shell.

[0013] Preferably, the sealing unit includes two first sealing shells, which are respectively arranged on both sides of the shell, one side of the first sealing shell is fixedly connected to the second sealing gasket, both sides of the first sealing shell are fixedly connected to the lifting plate, one side of the shell is fixedly connected to two support frames, the surface of the support frame is rotatably connected to the adjusting threaded rod through a bearing, and one end of the lifting plate is threadedly sleeved on the surface of the adjusting threaded rod.

[0014] Preferably, four linkage rods are provided on the top of the shell, and two second short plates are provided on the surface of the linkage rod through a bearing movable sleeve, one end of the second short plate is fixedly connected to the top of the shell, and both ends of the linkage rod are fixedly sleeved with a second bevel gear, one end of the adjusting threaded rod and both ends of the long rod are fixedly sleeved with a first bevel gear, the first bevel gear and the second bevel gear are meshed with each other, and the thread directions of the adjusting threaded rods on both sides of the shell are set in opposite directions.

[0015] 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, and a limiting shell is fixedly connected to the surface of the baffle, and the limiting shell is used in conjunction with the second sealing shell.

[0016] Preferably, the spraying mechanism includes a liquid storage bottle, which is fixedly connected to the top of the shell. There are two liquid storage bottles, one end of the liquid storage bottle is fixedly connected to a one-way solenoid valve, one end of the one-way solenoid valve is fixedly connected to a delivery pipe, the inner cavity of the shell is fixedly connected to a long tube, one end of the delivery tube passes through the inner cavity of the shell and is fixedly connected to the surface of the long tube, and the delivery tube and the long tube are both made of refractory materials.

[0017] Preferably, the surface of the long tube is fixedly connected to a nozzle, and the number of the nozzles is several. The inner cavity of the long tube is rotatably connected to a reciprocating screw through a bearing. A piston is movably sleeved on the surface of the reciprocating screw. The inner cavity of the long tube is provided with a guide groove for cooperating with the piston. The inner wall of the piston is fixedly connected to a guide block, and the guide block is used in conjunction with the reciprocating screw.

[0018] Preferably, one end of the reciprocating screw passes through the outside of the long tube and is fixedly sleeved with a second synchronous wheel, one side of the air-cooling fan is fixedly connected to a short rod, the surface of the short rod is fixedly sleeved with a first synchronous wheel, and one side of the air-cooling fan is provided with a synchronous belt, and the synchronous belt drive sleeve is provided on the surface of the first synchronous wheel and the second synchronous wheel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention can achieve the purpose of preventing the oxidation of the positive and negative electrodes of the battery cell by setting up the coordinated use of the air intake unit and the sealing unit, so that the positive and negative electrodes of the battery cell will not be exposed to the air, reducing the contact between the battery cell and the air, thereby reducing the oxidation of the positive and negative electrodes, and making it less likely for an oxide layer to appear on the surface of the positive and negative electrodes, effectively preventing the increase of internal resistance and heat generation, thereby preventing short circuits in the circuit, and at the same time reducing the oxygen in the battery pack, preventing the continuous combustion of open flames, and improving the safety of the battery pack during use.

[0021] 2. The present invention can achieve the purpose of effective fire extinguishing by setting up a spraying mechanism. When an open flame occurs, the fire can be sprayed and extinguished in time, effectively preventing the fire from spreading and causing continuous combustion inside the battery pack, thereby preventing the battery pack from exploding and ensuring the safety of the battery pack during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a rear view structural diagram of the present invention;

[0024] Figure 3 It is a partial left-side structural schematic diagram of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the housing of the present invention;

[0026] Figure 5 This is a schematic structural diagram of the air intake unit of the present invention;

[0027] Figure 6 For the present invention Figure 5 A magnified view of middle A;

[0028] Figure 7 This is a schematic structural diagram of the sealing unit of the present invention;

[0029] Figure 8 Schematic diagram of the spraying mechanism structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the cross-sectional structure of a long tube of the present invention;

[0031] Figure 10 For the present invention Figure 9 Enlarged view of middle B;

[0032] Figure 11 It is a schematic diagram of the local structure of the reciprocating screw of the present invention;

[0033] Figure 12 For the present invention Figure 11 Enlarged view of C in the middle.

[0034] In the figure: 1. Battery pack body; 101. Shell; 102. Baffle; 103. Air cooling fan; 104. Battery pack; 2. Protective mechanism; 21. Air suction unit; 2101. Negative pressure box; 2102. Air suction pipe; 2103. Small vacuum pump; 2104. Connecting pipe; 2105. Drive motor; 2106. L-shaped plate; 2107. Long rod; 2108. Pull rope; 2109. H-shaped plate; 2110. Air suction hood; 2111. Telescopic tube; 2112. Smoke sensor; 2113. First sealing gasket; 2114. Telescopic rod; 2115. Spring; 2116. First short plate; 22. Sealing unit; 2201. First sealing shell; 2202. Second sealing gasket ;2203, first bevel gear; 2204, second short plate; 2205, third sealing gasket; 2206, second sealing shell; 2207, connecting rod; 2208, second bevel gear; 2209, linkage rod; 2210, support frame; 2211, adjusting threaded rod; 2212, lifting plate; 2213, limit shell; 3, protective shell; 4, connecting plate; 5, spraying mechanism; 501, liquid storage bottle; 502, nozzle; 503, long tube; 504, one-way solenoid valve; 505, delivery pipe; 506, short rod; 507, first synchronous wheel; 508, second synchronous wheel; 509, synchronous belt; 510, reciprocating screw; 511, piston; 512, guide groove; 513, guide block. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1-12 The present invention provides a technical solution: a highly protected air-cooled battery pack.

[0037] The battery pack body 1 includes a shell 101, a baffle 102 fixedly connected to one side of the shell 101, a cooling fan 103 fixedly connected to one side of the baffle 102, a battery block 104 fixedly connected to the inner cavity of the shell 101, a protective shell 3 fixedly connected to the top of the shell 101, a connecting plate 4 fixedly embedded on the surface of the protective shell 3, and a protective mechanism 2 provided on one side of the shell 101;

[0038] The protective mechanism 2 includes an air suction unit 21, which is arranged on one side of the shell 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 shell 101, and the top of the negative pressure box 2101 is fixedly connected to a small vacuum pump 2103, and the air inlet end of the small vacuum pump 2103 is fixedly connected to a connecting pipe 2104, one end of the connecting pipe 2104 is fixedly connected to the top of the negative pressure box 2101, and both ends of the negative pressure box 2101 are fixedly connected. The sides are fixedly connected with an intake pipe 2102, one end of which passes through the inner cavity of the protective shell 3, and the surface of the intake pipe 2102 is fixedly connected with a telescopic tube 2111, one end of which passes through the inner cavity of the shell 101 and is fixedly connected with an intake hood 2110, and the bottom of the intake hood 2110 is fixedly connected with a first sealing gasket 2113, and the intake hood 2110 is sleeved on the surface of the positive and negative electrodes of the battery block 104, and the intake hood 2110 is in contact with the top of the battery block 104;

[0039] The protective mechanism 2 also includes a sealing unit 22, which is arranged on both sides of the shell 101. The sealing unit 22 is used in conjunction with the air intake unit 21. An L-shaped plate 2106 is fixedly connected to one side of the shell 101, and a drive motor 2105 is fixedly connected to the surface of the L-shaped plate 2106. The output of the drive motor 2105 passes through the L-shaped plate 2106 and is fixedly connected to a long rod 2107. One end of the long rod 2107 passes through the protective shell 3. A pull rope 2108 is wrapped around the surface of the long rod 2107, and one end of the pull rope 2108 passes through the inner cavity of the shell 101. By providing a first sealing gasket 2113, the sealing effect of the air intake hood 2110 can be improved, so that it can better seal the positive and negative poles of the battery cell, thereby reducing the oxidation of the positive and negative poles, effectively preventing the formation of an oxide layer, preventing circuit short circuit, and ensuring that the battery pack can operate stably and improve safety.

[0040] As a further limitation of the present invention, the number of the telescopic tubes 2111 is several, the intake pipe 2102 and the telescopic tube 2111 are both made of refractory materials, the inner cavity of the shell 101 is provided with an H-shaped plate 2109, and the H-shaped plate 2109 is fixedly connected to the surface of the intake hood 2110.

[0041] Smoke sensors 2112 are fixedly connected to both sides of the inner cavity of the shell 101, and telescopic rods 2114 are fixedly connected to the surface of the H-shaped plate 2109. There are four telescopic rods 2114, and one end of the telescopic rod 2114 passes through the top of the shell 101. A spring 2115 is movably sleeved on the surface of the telescopic rod 2114. The two ends of the spring 2115 are respectively fixedly connected to the H-shaped plate 2109 and the inner wall of the shell 101. By providing the spring 2115, the telescopic rod 2114 can apply pressure to the H-shaped plate 2109, thereby ensuring close contact between the air hood 2110 and the surface of the battery cell, thereby ensuring the effect of the air hood 2110 in absorbing air, ensuring that the positive and negative poles of the battery cell are not easily oxidized, reducing the generation of an oxide layer, effectively protecting the positive and negative poles of the battery cell, and improving the safety of the battery pack during use.

[0042] 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 provided with a first short plate 2116 through a bearing movable sleeve, and the bottom of the first short plate 2116 is fixedly connected to the top of the shell 101.

[0043] The sealing unit 22 includes two first sealing shells 2201, which are respectively arranged on both sides of the shell 101. One side of the first sealing shell 2201 is fixedly connected to the second sealing gasket 2202, and both sides of the first sealing shell 2201 are fixedly connected to the lifting plate 2212. One side of the shell 101 is fixedly connected to two support frames 2210, and the surface of the support frame 2210 is rotatably connected to the adjusting threaded rod 2211 through a bearing. One end of the lifting plate 2212 is threadedly sleeved on the surface of the adjusting threaded rod 2211. By setting the first sealing shell 2201, the two sides of the shell 101 can be effectively sealed. When the shell 101 is evacuated, the oxygen in the shell 101 can be effectively extracted, thereby suppressing the spread of the fire, effectively extinguishing the fire, and ensuring safety.

[0044] Four linkage rods 2209 are provided on the top of the shell 101. Two second short plates 2204 are movably sleeved on the surface of the linkage rod 2209 through a bearing. One end of the second short plate 2204 is fixedly connected to the top of the shell 101. Both ends of the linkage rod 2209 are fixedly sleeved with a second bevel gear 2208. One end of the adjusting threaded rod 2211 and both ends of the long rod 2107 are fixedly sleeved with a first bevel gear 2203. The first bevel gear 2203 and the second bevel gear 2208 are meshed with each other. The thread directions of the adjusting threaded rods 2211 on both sides of the shell 101 are set in opposite directions.

[0045] A second sealing shell 2206 is provided on one side of the baffle 102, a connecting rod 2207 is fixedly connected to one side of the first sealing shell 2201, one end of the connecting rod 2207 is fixedly connected to the surface of the second sealing shell 2206, a third sealing gasket 2205 is fixedly connected to one side of the second sealing shell 2206, and a limiting shell 2213 is fixedly connected to the surface of the baffle 102, and the limiting shell 2213 is used in conjunction with the second sealing shell 2206.

[0046] By setting up the coordinated use of the air intake 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 will not be exposed to the air, reducing the contact between the battery cell and the air, thereby reducing the oxidation of the positive and negative electrodes, and making it less likely for an oxide layer to appear on the surface of the positive and negative electrodes, effectively preventing the increase in internal resistance and heat generation, thereby preventing a short circuit in the circuit, and at the same time reducing the oxygen in the battery pack, preventing the continuous burning of an open flame, and improving the safety of the battery pack during use.

[0047] The specific implementation of this embodiment is as follows: when the battery pack body 1 is in use, the initial position of the air hood 2110 is in contact with the top of the battery block 104, thereby covering the positive and negative electrodes on the top of the battery block 104 for sealing. By running the small vacuum pump 2103, negative pressure is generated in the negative pressure box 2101, so that the air intake pipe 2102 generates suction to absorb the air inside the air hood 2110, thereby reducing the oxygen in the air hood 2110 and achieving a state close to vacuum. Because the air hood 2110 covers and seals the positive and negative electrodes of the battery block 104, the contact between the positive and negative electrodes of the battery block 104 and oxygen is reduced, thereby effectively preventing the positive and negative electrodes of the battery block 104 from being oxidized by long-term contact with oxygen, and effectively protecting the positive and negative electrodes of the battery block 104.

[0048] When a short circuit fire occurs, the smoke sensor 2112 detects the fire and drives the motor 2105 to rotate the long rod 2107, thereby reeling in the pull rope 2108 and moving the H-shaped plate 2109 upward, thereby squeezing the telescopic rod 2114 and the spring 2115 to make them contract. At the same time, the telescopic tube 2111 contracts, and the air hood 2110 moves upward, away from the battery block 104, so that the air hood 2110 can move to the top of the inner cavity of the shell 101. Through the operation of the small vacuum pump 2103, the air hood 2110 can absorb the air in the shell 101, thereby reducing the oxygen content in the shell 101. At the same time, the first bevel gear 2203 on the long rod 2107 rotates, causing the second bevel gear 2208 meshing with it to rotate, so that the linkage rod 220 9 rotates, and drives another first bevel gear 2203 to rotate through another second bevel gear 2208, so that the adjusting threaded rod 2211 rotates, thereby moving the lifting plate 2212 downward, thereby sealing the air holes on both sides of the shell 101, and at the same time, the connecting rod 2207 follows the first sealing shell 2201 to descend, allowing it to drive the second sealing shell 2206 to descend, so that the second sealing shell 2206 enters the limiting shell 2213, thereby sealing the vent of the air-cooling fan 103, allowing the suction hood 2110 to better extract the air in the shell 101, thereby reducing the oxygen content in the shell 101, allowing the shell 101 to achieve a state close to vacuum, reducing the combustion support for the fire, so that the open flame inside the shell 101 will not continue to expand, making it difficult for the open flame to burn and achieving the effect of extinguishing the fire.

[0049] Example 2: Please refer to Figures 1-12 The present invention provides a technical solution: a highly protected air-cooled battery pack. The present invention makes corresponding improvements to the technical problems mentioned in the background technology.

[0050] As a further limitation of the present invention, the inner cavity of the housing 101 is provided with a spraying mechanism 5;

[0051] The spraying mechanism 5 includes a liquid storage bottle 501, which is fixedly connected to the top of the shell 101. There are two liquid storage bottles 501. One end of the liquid storage bottle 501 is fixedly connected to a one-way solenoid valve 504, and one end of the one-way solenoid valve 504 is fixedly connected to a delivery pipe 505. The inner cavity of the shell 101 is fixedly connected to a long tube 503. One end of the delivery pipe 505 passes through the inner cavity of the shell 101 and is fixedly connected to the surface of the long tube 503. Both the delivery pipe 505 and the long tube 503 are made of refractory materials.

[0052] The surface of the long tube 503 is fixedly connected to a nozzle 502, and there are several nozzles 502. 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 for cooperating 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 setting 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.

[0053] 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. The surface of the short rod 506 is fixedly sleeved with a first synchronous wheel 507. A synchronous belt 509 is provided on one side of the air-cooling fan 103. The synchronous belt 509 transmission sleeve is arranged on the surface of the first synchronous wheel 507 and the second synchronous wheel 508.

[0054] By setting up the spraying mechanism 5, the purpose of effective fire extinguishing can be achieved. When an open flame occurs, the fire can be sprayed and extinguished 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 during use.

[0055] The specific implementation of this embodiment is as follows: after the smoke sensor 2112 detects a fire, the one-way solenoid valve 504 opens, 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 action of the guide block 513 and the guide, 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 and allowing it to flow in the long tube 503. 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, absorbing a large amount of heat, and 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.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0057] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

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

2. The high-protection air-cooled battery pack according to claim 1, characterized in that: There are several telescopic tubes (2111), and both the air intake pipe (2102) and the telescopic tube (2111) are made of refractory materials. The inner cavity of the shell (101) is provided with an H-shaped plate (2109), and the H-shaped plate (2109) is fixedly connected to the surface of the air intake hood (2110).

3. The high-protection air-cooled battery pack according to claim 2, characterized in that: Smoke sensors (2112) are fixedly connected to both sides of the inner cavity of the shell (101), and telescopic rods (2114) are fixedly connected to the surface of the H-shaped plate (2109). There are four telescopic rods (2114), one end of each telescopic rod (2114) passes through the top of the shell (101), and a spring (2115) is movably sleeved on the surface of the telescopic rod (2114). The two ends of the spring (2115) are fixedly connected to the inner wall of the H-shaped plate (2109) and the shell (101), respectively.

4. The high-protection air-cooled battery pack according to claim 3, characterized in that: 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 provided with a first short plate (2116) through a bearing sleeve, and the bottom of the first short plate (2116) is fixedly connected to the top of the shell (101).

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

6. The high-protection air-cooled battery pack according to claim 5, characterized in that: Four linkage rods (2209) are provided on the top of the housing (101), and two second short plates (2204) are provided on the surface of the linkage rod (2209) through a movable sleeve of a bearing. One end of the second short plate (2204) is fixedly connected to the top of the housing (101), and both ends of the linkage rod (2209) are fixedly sleeved with a second bevel gear (2208). One end of the adjusting threaded rod (2211) and both ends of the long rod (2107) are fixedly sleeved with a first bevel gear (2203), and the first bevel gear (2203) and the second bevel gear (2208) are meshed with each other. The thread directions of the adjusting threaded rods (2211) on both sides of the housing (101) are set in opposite directions.

7. The high-protection air-cooled battery pack according to claim 6, characterized in that: A second sealing shell (2206) is provided on one side of the baffle (102); a connecting rod (2207) is fixedly connected to one side of the first sealing shell (2201); one end of the connecting rod (2207) is fixedly connected to the surface of the second sealing shell (2206); a third sealing gasket (2205) is fixedly connected to one side of the second sealing shell (2206); a limiting shell (2213) is fixedly connected to the surface of the baffle (102); and the limiting shell (2213) is used in conjunction with the second sealing shell (2206).

8. The high-protection 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 shell (101), the number of the liquid storage bottles (501) is two, one end of the liquid storage bottle (501) is fixedly connected to a one-way solenoid valve (504), one end of the one-way solenoid valve (504) is fixedly connected to a delivery pipe (505), the inner cavity of the shell (101) is fixedly connected to a long pipe (503), one end of the delivery pipe (505) passes through the inner cavity of the shell (101) and is fixedly connected to the surface of the long pipe (503), and the delivery pipe (505) and the long pipe (503) are both made of refractory materials.

9. The high-protection air-cooled battery pack according to claim 8, characterized in that: The surface of the long tube (503) is fixedly connected to a nozzle (502), and the number of the nozzles (502) is several. The inner cavity of the long tube (503) is rotatably connected to a reciprocating screw (510) through a bearing. The surface of the reciprocating screw (510) is movably sleeved with a piston (511). 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).

10. The high-protection air-cooled battery pack according to claim 9, characterized in that: 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); one side of the air-cooling fan (103) is fixedly connected to a short rod (506); the surface of the short rod (506) is fixedly sleeved with a first synchronous wheel (507); one side of the air-cooling fan (103) is provided with a synchronous belt (509); the transmission sleeve of the synchronous belt (509) is arranged on the surface of the first synchronous wheel (507) and the second synchronous wheel (508).

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