Battery pack with waterproof protection structure

Abstract

The invention relates to the technical field of battery packs, in particular to a battery pack with a waterproof protection structure, which comprises a battery box body, a box cover is detachably mounted at the upper end of the battery box body, a battery pack is fixedly mounted at the bottom of an inner cavity of the battery box body, and a waterproof sealing mechanism is mounted between the upper end of the battery box body and the box cover. A plurality of L-shaped reinforcing plates are fixedly installed on the four side faces of an inner cavity of the battery box body, the upper end of each L-shaped reinforcing plate is fixedly connected with an L-shaped connecting plate, the top of an inner cavity of the box cover is fixedly connected with a material storage box, and the lower bottom face of the material storage box is fixedly connected with a fixing base. And the lower sealing edge and the upper sealing edge are matched to extrude the sealing ring to generate deformation, so that the lower sealing edge and the upper sealing edge are hermetically connected, the box cover and the battery box body are hermetically connected, and the waterproof performance of the battery pack is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packs, and in particular to a battery pack with a waterproof protection structure. Background Art

[0002] A device that converts chemical energy into electrical energy is called a chemical battery, generally referred to as a battery. A battery pack refers to a plurality of batteries connected in series and in parallel. A parallel battery pack requires that each battery has the same voltage, and the output voltage is equal to the voltage of one battery. A parallel battery pack can provide a stronger current, and there are no excessive requirements for a series battery pack. Most assembled battery packs will be installed in the protective shell of the battery pack. The overall thickness of the existing battery pack protective shell plate is relatively small, resulting in poor rigidity and strength of the battery pack. When the side of the battery pack is collided and squeezed by external forces, it is easy to directly squeeze the battery in the battery pack, thereby causing safety accidents such as battery fire and explosion. In addition, the existing battery pack does not have a fire extinguishing and fire suppression mechanism. Once the battery pack catches fire, it is difficult to extinguish the fire, and the fire is easy to expand. In addition, the existing battery pack structure has a poor waterproof effect. For example, after the shell and the upper cover of some battery packs are installed, the gaps in the battery pack structure are sealed by gluing. The operation method is time-consuming, and there are problems such as poor waterproof effect and short sealing life, which are very defective. Summary of the invention

[0003] The object of the present invention is to provide a battery pack with a waterproof protection structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a battery pack with a waterproof protection structure, comprising a battery box, a box cover is detachably installed on the upper end of the battery box, a battery pack is fixedly installed at the bottom of the inner cavity of the battery box, a waterproof sealing mechanism is installed between the upper end of the battery box and the box cover, a plurality of L-shaped reinforcing plates are fixedly installed on the four sides of the inner cavity of the battery box, an L-shaped connecting plate is fixedly connected to the upper end of each L-shaped reinforcing plate, a storage box is fixedly connected to the top of the inner cavity of the box cover, and the storage box The lower bottom surface is fixedly connected with a fixing seat, and a plurality of rubber corrugated storage boxes are installed in the inner cavity of the storage box, and a lower pressing frame plate is provided at the upper end of the rubber corrugated storage box in the inner cavity of the storage box, and a sealing mechanism for sealing the lower port of the rubber corrugated storage box is installed at the bottom of the storage box, and two pushing mechanisms are symmetrically installed on the inner side of the sealing mechanism, and a cutting mechanism for triggering the pushing mechanism is installed on the four side surfaces of the fixing seat, and a plurality of buffering energy absorption mechanisms are installed between the four outer side surfaces of the storage box and the four inner side walls of the box cover.

[0005] Preferably, the waterproof sealing mechanism includes a lower sealing edge fixedly connected to the upper end of the battery box, an upper sealing edge fixedly connected to the inner cavity of the box cover, and a sealing ring inserted between the lower sealing edge and the upper sealing edge, and the lower sealing edge and the upper sealing edge are abutted.

[0006] Preferably, the bottom of the storage box is provided with a plurality of discharge ports from top to bottom, the bottom of the storage box is provided with a plurality of dovetail grooves, and the lower port of the rubber corrugated storage box is plugged into the discharge port; The sealing mechanism includes two cross bars symmetrically installed at the bottom of the storage box, two L-shaped movable seats symmetrically distributed between the two cross bars, and movable bars symmetrically hinged on both sides of the L-shaped movable seats, one end of the movable bar away from the L-shaped movable seat is rotatably connected to one end of the cross bar by a pin rod, the upper ends of the cross bar and the L-shaped movable seat are fixedly connected with a dovetail slider and a sealing gasket, a plurality of dovetail sliders and a plurality of sealing gaskets are equidistantly installed on the cross bar, the sealing gaskets and the dovetail sliders are alternately distributed at the upper end of the cross bar, and the upper ends of the cross bar and the L-shaped movable seat are in sliding contact with the bottom surface of the storage box.

[0007] Preferably, the dovetail slider is slidably connected to the dovetail groove, the sealing gasket is clamped in the lower port of the rubber corrugated storage box, the rubber corrugated storage box cavity is filled with fire extinguishing agent, and the lower pressure frame plate is slidably connected to the inner side wall of the storage box.

[0008] Preferably, the pushing mechanism includes a pull rope fixedly connected to the L-shaped movable seat, and a thrust spring sleeved on the pull rope, the two ends of the thrust spring respectively abut against the side of the fixed seat and the L-shaped movable seat, a threading groove is provided in the fixed seat, and four slots are provided on the side of the threading groove, one end of the pull rope away from the L-shaped movable seat is inserted into the threading groove, and one end of the pull rope is fixedly connected to the bottom of the threading groove.

[0009] Preferably, the cutting mechanism includes an active plug plate movably inserted in the slot, a blade fixedly connected to one end of the active plug plate, a pressing plate fixedly connected to the end of the active plug plate away from the blade, and two C-shaped spring plates symmetrically fixedly connected to the side surfaces of the pressing plate, one side of the C-shaped spring plate is fixedly connected to a fixed seat, the outer side surface of the pressing plate is abutted against a push plate, and one end of the push plate is fixedly connected to the inner wall of the battery box.

[0010] Preferably, the buffer energy absorption mechanism includes a pressure-resistant plate abutting against the inner wall of the box cover, two docking grooves symmetrically opened at both ends of the pressure-resistant plate, two clamping sleeves symmetrically fixedly connected to the lower end of the side of the pressure-resistant plate, a trigger extrusion block fixedly connected to the upper end of the side of the pressure-resistant plate, two transmission arm plates rotatably connected to the two docking grooves through a rotating shaft, two movable plates respectively hinged at the ends of the two transmission arm plates, two concave seats clamped on the sides of the two movable plates, two guide rods symmetrically fixedly connected in the concave seats up and down, an energy absorption spring sleeved on the guide rods, and an S-shaped energy absorption spring fixedly connected to the inner side of the concave seat, and the upper end of the L-shaped connecting plate is plugged into the clamping sleeve.

[0011] Preferably, the concave seat is fixedly connected to the side of the storage box, the movable plate is sleeved on two guide rods, the movable plate is slidably connected to the guide rods, the side of the movable plate is in sliding contact with the inner side of the concave seat, the two ends of the energy absorption spring are respectively abutted against the concave seat and the movable plate, and one side of the S-shaped energy absorption spring is abutted against the movable plate.

[0012] Preferably, a plurality of grooves are provided at the upper ends of the four side panels of the storage box, one end of the trigger extrusion block extends through the groove to the inner cavity of the storage box, one side of the trigger extrusion block is arranged in a slope, and the slope of the trigger extrusion block is in extrusion contact with the lower pressure frame plate.

[0013] Compared with the prior art, the invention has the following advantages: 1. Insert a sealing ring between the lower sealing edge and the upper sealing edge, and deform the sealing ring by cooperating with the lower sealing edge and the upper sealing edge to make the lower sealing edge and the upper sealing edge sealed, thereby making the box cover and the battery box body sealed, thereby improving the waterproof performance of the battery pack.

[0014] 2. When the sides of the battery box and the box cover are collided and squeezed by external force, the side walls of the battery box and the box cover are concave inward, and the vertical plate of the L-shaped reinforcement plate inside the battery box is also subjected to the impact force, thereby playing a certain buffering protection to prevent the battery pack in the battery box from being damaged. When the impact force is large, the vertical plate of the L-shaped reinforcement plate bends inward and deforms, thereby playing a certain energy absorption role.

[0015] 3. When the inner wall of the battery box is sunken due to the collision and extrusion of the external force, the push plate is driven to move, so that the blade in the cutting mechanism cuts the drawstring, and the L-shaped movable seat is pushed to move under the action of the elastic force of the thrust spring, so that the cross bar and the L-shaped movable seat are moved and the sealing gasket is driven to move, so that the sealing gasket is moved out of the lower port of the rubber corrugated storage box, and the seal of the lower port of the rubber corrugated storage box is loosened, so that the fire extinguishing agent in the rubber corrugated storage box can fall downward along the lower port, and the buffering energy absorption mechanism is triggered, and the energy absorption spring and the S-shaped energy absorption shrapnel are activated. The trigger extrusion block in the buffer energy absorption mechanism is inserted into the storage box along the groove, and the trigger extrusion block squeezes the lower pressing frame plate to move downward, and the lower pressing frame plate squeezes the rubber corrugated storage box downward, thereby quickly squeezing the fire extinguishing agent in the rubber corrugated storage box from the lower port, so that the fire extinguishing agent is sprinkled downward on the battery pack, thereby preventing the battery pack from catching fire, or playing a role in extinguishing or suppressing the spread of fire when the battery pack catches fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a battery pack with a waterproof protection structure according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a battery pack with a waterproof protection structure of the present invention; Figure 3 A side cross-sectional view of a battery pack with a waterproof protection structure according to the present invention; Figure 4 It is a schematic diagram of the present invention; Figure 5 It is a schematic diagram of the present invention; Figure 6 This is a bottom sectional view of the box cover of the present invention; Figure 7 This is a schematic diagram of the internal structure of the box cover of the present invention; Figure 8 It is an exploded view of the material storage box, sealing mechanism, pushing mechanism, cutting mechanism and buffering energy absorbing mechanism of the present invention; Fig. 9 It is an exploded view of the buffer energy absorption mechanism of the present invention.

[0017] In the figure: 1. battery box; 11. lower sealing edge; 12. box cover; 13. upper sealing edge; 14. sealing ring; 15. battery pack; 16. L-shaped reinforcing plate; 17. L-shaped connecting plate; 2. material storage box; 21. material outlet; 22. dovetail groove; 23. groove; 24. fixing seat; 25. threading groove; 26. slot; 27. rubber corrugated material storage box; 28. lower pressing frame plate; 3. cross bar; 31. L-shaped movable seat ; 32. movable rod; 33. dovetail slider; 34. sealing gasket; 35. pull rope; 36. thrust spring; 4. movable plug plate; 41. blade; 42. pressing plate; 43. C-type spring; 44. push plate; 5. pressure plate; 51. docking groove; 52. ferrule; 53. trigger extrusion block; 54. transmission arm plate; 55. movable plate; 6. concave seat; 61. guide rod; 62. energy absorbing spring; 63. S-type energy absorbing spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 9 The present invention provides a technical solution: a battery pack with a waterproof protection structure, comprising a battery box 1, a box cover 12 is detachably installed on the upper end of the battery box 1, a battery pack 15 is fixedly installed at the bottom of the inner cavity of the battery box 1, a waterproof sealing mechanism is installed between the upper end of the battery box 1 and the box cover 12, and a plurality of L-shaped reinforcing plates 16 are fixedly installed on the four sides of the inner cavity of the battery box 1, wherein four L-shaped reinforcing plates 16 are fixedly connected to the long inner side wall of the battery box 1, and two L-shaped reinforcing plates 16 are fixedly connected to the short inner side wall of the battery box 1, and the upper end of each L-shaped reinforcing plate 16 is fixedly connected to an L-shaped connecting plate 17, and a storage box 2 is fixedly connected to the top of the inner cavity of the box cover 12, and the upper end of the storage box 2 is open, and the lower end of the storage box 2 is open. A fixing seat 24 is fixedly connected to the bottom surface, and a plurality of rubber corrugated storage boxes 27 are installed in the inner cavity of the storage box 2. A lower pressing frame plate 28 is provided at the upper end of the rubber corrugated storage box 27 in the inner cavity of the storage box 2. A sealing mechanism for sealing the lower port of the rubber corrugated storage box 27 is installed at the bottom of the storage box 2, and two pushing mechanisms are symmetrically installed on the inner side of the sealing mechanism. The two pushing mechanisms are arranged on both sides of the fixing seat 24, and cutting mechanisms for triggering the pushing mechanisms are installed on the four side surfaces of the fixing seat 24. A plurality of buffering energy absorbing mechanisms are installed between the four outer side surfaces of the storage box 2 and the four inner side walls of the box cover 12, wherein two buffering energy absorbing mechanisms are installed on the long inner side wall of the box cover 12, and a buffering energy absorbing mechanism is fixedly connected to the short inner side wall of the box cover 12.

[0020] See also Figures 2 to 4 The waterproof sealing mechanism includes a lower sealing edge 11 fixedly connected to the upper end of the battery box 1, an upper sealing edge 13 fixedly connected to the inner cavity of the box cover 12, and a sealing ring 14 inserted between the lower sealing edge 11 and the upper sealing edge 13. The lower sealing edge 11 and the upper sealing edge 13 are abutted. When the box cover 12 is covered on the battery box 1, the lower sealing edge 11 and the upper sealing edge 13 are butted, and the sealing ring 14 is padded between the lower sealing edge 11 and the upper sealing edge 13. The sealing ring 14 is squeezed and deformed by the cooperation of the lower sealing edge 11 and the upper sealing edge 13, so that the lower sealing edge 11 and the upper sealing edge 13 are sealed, and then the battery box 1 and the box cover 12 are sealed and connected, thereby improving the waterproofness of the battery box 1. The use cost of the sealing ring 14 is low and the service life is long.

[0021] See also Figure 6 and Figure 8 The bottom of the storage box 2 is provided with a plurality of discharge ports 21 from top to bottom, and the bottom of the storage box 2 is provided with a plurality of dovetail grooves 22, and the lower port of the rubber corrugated storage box 27 is plugged into the discharge port 21; The sealing mechanism includes two cross bars 3 symmetrically installed at the bottom of the storage box 2, two L-shaped movable seats 31 symmetrically distributed between the two cross bars 3, and movable bars 32 symmetrically hinged on both sides of the L-shaped movable seats 31. The end of the movable bar 32 away from the L-shaped movable seat 31 is rotatably connected to one end of the cross bar 3 by a pin rod. The upper ends of the cross bar 3 and the L-shaped movable seat 31 are fixedly connected with a dovetail slider 33 and a sealing gasket 34. A plurality of dovetail sliders 33 and a plurality of sealing gaskets 34 are equidistantly installed on the cross bar 3. The sealing gaskets 34 and the dovetail sliders 33 are alternately distributed at the upper end of the cross bar 3. The upper ends of the cross bar 3 and the L-shaped movable seat 31 are in sliding contact with the bottom surface of the storage box 2.

[0022] See also Figure 3 , Figure 5 , Figure 6 and Figure 7The dovetail slider 33 is slidably connected with the dovetail groove 22. The dovetail slider 33 is clamped with the dovetail groove 22 to prevent the cross bar 3 and the L-shaped movable seat 31 from falling downward. The sealing gasket 34 is clamped in the lower port of the rubber corrugated storage box 27. The fire extinguishing agent is contained in the cavity of the rubber corrugated storage box 27. The sealing gasket 34 abuts against the lower port of the rubber corrugated storage box 27. The lower pressing frame plate 28 is slidably connected with the inner side wall of the storage box 2. The lower pressing frame plate 28 has a tendency to press down the rubber corrugated storage box 27, thereby pressing the rubber corrugated storage box 27. The rubber corrugated storage box 27 is firmly fixed in the storage box 2, and is moved away from each other by two L-shaped movable seats 31. The L-shaped movable seat 31 pushes the two movable rods 32 on both sides thereof to open and rotate, and the movable rods 32 push the two cross bars 3 to move away from each other. When the cross bars 3 and the L-shaped movable seat 31 move, they drive the dovetail slider 33 to slide along the dovetail groove 22, and at the same time drive the sealing gasket 34 to move, so that the sealing gasket 34 is moved out from the lower port of the rubber corrugated storage box 27, loosening the seal on the lower port of the rubber corrugated storage box 27.

[0023] See also Figure 6 and Figure 8 The pushing mechanism includes a pull rope 35 fixedly connected to the L-shaped movable seat 31 and a thrust spring 36 sleeved on the pull rope 35, two ends of the thrust spring 36 respectively abut against the sides of the fixed seat 24 and the L-shaped movable seat 31, a threading groove 25 is provided in the fixed seat 24, and four slots 26 are provided on the side of the threading groove 25, one end of the pull rope 35 away from the L-shaped movable seat 31 is inserted into the threading groove 25, and one end of the pull rope 35 is fixedly connected to the bottom of the threading groove 25, and the L-shaped movable seat 31 is fixed by the pull rope 35, so that the L-shaped movable seat 31 cannot move outward at will, and at the same time, the thrust spring 36 is in a compressed state, and the thrust spring 36 applies an elastic force to the L-shaped movable seat 31, so that the L-shaped movable seat 31 will not move inward at will, and when the pull rope 35 breaks, the L-shaped movable seat 31 moves under the action of the elastic force of the thrust spring 36, so that the two L-shaped movable seats 31 move away from each other.

[0024] See also Figure 3 , Figure 5 , Figure 6 and Figure 8The cutting mechanism includes an active plug plate 4 movably inserted in the slot 26, a blade 41 fixedly connected to one end of the active plug plate 4, a pressing plate 42 fixedly connected to the end of the active plug plate 4 away from the blade 41, and two C-shaped springs 43 symmetrically fixedly connected to the side of the pressing plate 42, one side of the C-shaped spring 43 is fixedly connected to the fixed seat 24, the outer side of the pressing plate 42 is abutted with a push plate 44, one end of the push plate 44 is fixedly connected to the inner side wall of the battery box 1, the C-shaped spring 43 applies an elastic force to the pressing plate 42, and the blade end of the blade 41 passes through the slot 26 and extends into the threading groove 25. The initial state The blade of the static blade 41 does not contact the pull rope 35. When the side of the battery box 1 is collided and squeezed by external force, the side wall of the battery box 1 is concave inward, and at the same time, the side wall drives the push plate 44 to move, and the push plate 44 pushes the pressing plate 42 to move toward the fixed seat 24. The pressing plate 42 drives the movable plug plate 4 to move into the slot 26. At the same time, the movable plug plate 4 drives the blade 41 to be inserted into the threading groove 25. When the blade 41 passes through the threading groove 25, the pull rope 35 is cut off. At this time, under the action of the elastic force of the thrust spring 36, the L-shaped movable seat 31 is pushed to move, and the L-shaped movable seat 31 drives the pull rope 35 to slide outward along the fixed seat 24.

[0025] See also Figures 6 to 9 The buffering energy absorption mechanism includes a pressure-resistant plate 5 abutting against the inner wall of the box cover 12, two docking grooves 51 symmetrically opened at both ends of the pressure-resistant plate 5, two clamping sleeves 52 symmetrically fixedly connected to the lower end of the side of the pressure-resistant plate 5, a trigger extrusion block 53 fixedly connected to the upper end of the side of the pressure-resistant plate 5, two transmission arm plates 54 rotatably connected to the two docking grooves 51 through a rotating shaft, two movable plates 55 respectively hinged at the ends of the two transmission arm plates 54, two concave seats 6 clamped on the sides of the two movable plates 55, and two guides symmetrically fixedly connected to the concave seats 6. Rod 61, energy absorbing spring 62 sleeved on the guide rod 61, and S-shaped energy absorbing spring 63 fixedly connected to the inner side of the concave seat 6, the upper end of the L-shaped connecting plate 17 is plugged into the sleeve 52, the concave seat 6 is fixedly connected to the side of the storage box 2, the movable plate 55 is sleeved on the two guide rods 61, the movable plate 55 is slidably connected to the guide rods 61, the side of the movable plate 55 is in sliding contact with the inner side of the concave seat 6, the two ends of the energy absorbing spring 62 are respectively abutted against the concave seat 6 and the movable plate 55, and one side of the S-shaped energy absorbing spring 63 is abutted against the movable plate 55.

[0026] A plurality of grooves 23 are provided at the upper ends of the four side panels of the storage box 2, and one end of the trigger extrusion block 53 passes through the groove 23 and extends to the inner cavity of the storage box 2. One side of the trigger extrusion block 53 is arranged in a slope, and the slope of the trigger extrusion block 53 is in extrusion contact with the lower pressing frame plate 28. When the side wall of the battery box 1 is concave inward due to collision or extrusion, the vertical plate of the L-shaped reinforcing plate 16 is simultaneously subjected to the impact force, thereby playing a certain buffering protection and preventing the battery pack 15 in the battery box 1 from being damaged. When the impact force is large, the vertical plate of the L-shaped reinforcing plate 16 bends inward, and the vertical plate of the L-shaped reinforcing plate 16 drives the L-shaped connecting plate 17 to move inward, and the L-shaped connecting plate 17 drives the clamping sleeve 52 to move inward, thereby moving the anti-pressure plate 5 inward. At the same time, if the side of the box cover 12 is collided and extruded by external force, the side wall of the box cover 12 is concave inward, and the side wall of the box cover 12 pushes the anti-pressure plate 5 to move inward, and the anti-pressure plate 5 pushes The two transmission arm plates 54 rotate, causing the transmission arm plates 54 to rotate toward the anti-pressure plate 5. When the transmission arm plates 54 rotate, they push the movable plate 55 to slide along the guide rod 61 and the concave seat 6. The movable plate 55 squeezes the energy absorbing spring 62 and the S-shaped energy absorbing spring 63, and plays a buffering role under the action of the elastic force of the energy absorbing spring 62 and the S-shaped energy absorbing spring 63, thereby playing an energy absorbing role, and then protecting the battery pack 15. When the anti-pressure plate 5 moves inward, the anti-pressure plate 5 drives the trigger extrusion block 53 to be inserted into the storage box 2 along the groove 23, and at the same time, the trigger extrusion block 53 squeezes the lower pressure frame plate 28 to move downward, and the lower pressure frame plate 28 squeezes the rubber corrugated storage box 27 downward, thereby squeezing the fire extinguishing agent in the rubber corrugated storage box 27 from the lower port, so that the fire extinguishing agent is sprinkled downward on the battery pack 15, thereby preventing the battery pack 15 from catching fire, or extinguishing the fire or suppressing the spread of the fire when the battery pack 15 catches fire.

[0027] Working principle: By setting a lower sealing edge 11 at the upper end of the battery box 1, setting an upper sealing edge 13 in the inner cavity of the box cover 12, inserting a sealing ring 14 between the lower sealing edge 11 and the upper sealing edge 13, and the lower sealing edge 11 and the upper sealing edge 13 cooperate to squeeze the sealing ring 14 to produce deformation, so that the lower sealing edge 11 and the upper sealing edge 13 are sealed and connected, and then the box cover 12 and the battery box 1 are sealed and connected, so as to improve the waterproof performance of the battery pack, and the sealing ring The use cost of 14 is low, and the service life is long, and it is convenient for later replacement; when the sides of the battery box 1 and the box cover 12 are collided and squeezed by external forces, the side walls of the battery box 1 and the box cover 12 are concave inwards, and the vertical plates of the L-shaped reinforcing plates 16 inside the battery box 1 are simultaneously subjected to the impact force, thereby playing a certain buffering protection to prevent the battery pack 15 in the battery box 1 from being damaged. When the impact force is large, the vertical plates of the L-shaped reinforcing plates 16 bend inwards and deform, thereby playing a certain energy absorption role, and the battery box When the inner wall of the body 1 is recessed, the push plate 44 is driven to move, and the push plate 44 pushes the pressing plate 42 to move toward the fixed seat 24. The pressing plate 42 drives the movable plug plate 4 and the blade 41 to move into the fixed seat 24, so that the blade 41 is inserted into the threading groove 25. When the blade 41 passes through the threading groove 25, the pull rope 35 is cut off, so that the pull rope 35 is released from the restriction of the L-shaped movable seat 31. At this time, the L-shaped movable seat 31 is pushed to move under the action of the elastic force of the thrust spring 36, so that the two L-shaped movable seats 31 move away from each other. The L-shaped movable seat 31 pushes the two movable rods 32 on both sides thereof to open and rotate, and the movable rods 32 push the two cross bars 3 to move away from each other. When the cross bars 3 and the L-shaped movable seat 31 move, the dovetail slider 33 is driven to slide along the dovetail groove 22, and the sealing gasket 34 is driven to move, so that the sealing gasket 34 is moved out from the lower port of the rubber corrugated storage box 27, and the seal of the lower port of the rubber corrugated storage box 27 is loosened, so that the fire extinguishing agent in the rubber corrugated storage box 27 can fall downward along the lower port;When the vertical plate of the L-shaped reinforcing plate 16 bends inward and moves, it drives the L-shaped connecting plate 17 to move inward, and the L-shaped connecting plate 17 drives the clamping sleeve 52 to move inward, so that the pressure-resistant plate 5 moves inward. At the same time, if the side of the box cover 12 is collided and squeezed by external force, the side wall of the box cover 12 will be concave inward and will also push the pressure-resistant plate 5 to move inward. The pressure-resistant plate 5 drives the two transmission arm plates 54 to rotate, so that the transmission arm plates 54 rotate close to the pressure-resistant plate 5. When the transmission arm plates 54 rotate, they drive the movable plate 55 to slide along the guide rod 61 and the concave seat 6. The movable plate 55 squeezes the energy-absorbing spring 62 and the S-shaped energy-absorbing spring 63. The spring sheet 63 acts as a buffer under the elastic force, thereby absorbing energy, reducing the impact of collision and extrusion, and protecting the battery pack 15. When the anti-pressure plate 5 moves inward, the anti-pressure plate 5 drives the trigger extrusion block 53 to insert into the storage box 2 along the groove 23, and at the same time, the trigger extrusion block 53 squeezes the lower pressing frame plate 28 to move downward, and the lower pressing frame plate 28 squeezes the rubber corrugated storage box 27 downward, so that the fire extinguishing agent in the rubber corrugated storage box 27 is quickly squeezed out from the lower port, so that the fire extinguishing agent falls downward on the battery pack 15, thereby preventing the battery pack 15 from catching fire, or playing the role of extinguishing or suppressing the expansion of the fire when the battery pack 15 catches fire. ;

[0028] 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. A battery pack with a waterproof protection structure, comprising a battery box (1), a box cover (12) being detachably mounted on the upper end of the battery box (1), and a battery pack (15) being fixedly mounted on the bottom of the inner cavity of the battery box (1), characterized in that: A waterproof sealing mechanism is installed between the upper end of the battery box (1) and the box cover (12); a plurality of L-shaped reinforcing plates (16) are fixedly installed on four sides of the inner cavity of the battery box (1); the upper end of each L-shaped reinforcing plate (16) is fixedly connected to an L-shaped connecting plate (17); a material storage box (2) is fixedly connected to the top of the inner cavity of the box cover (12); a fixing seat (24) is fixedly connected to the lower bottom surface of the material storage box (2); and a plurality of rubber corrugated material storage boxes (27) are installed in the inner cavity of the material storage box (2). ), the inner cavity of the material storage box (2) is provided with a lower pressing frame plate (28) at the upper end of the rubber corrugated material storage box (27), a sealing mechanism for sealing the lower end of the rubber corrugated material storage box (27) is installed at the bottom of the material storage box (2), two pushing mechanisms are symmetrically installed on the inner side of the sealing mechanism, and cutting mechanisms for triggering the pushing mechanisms are installed on the four side surfaces of the fixing seat (24), and a plurality of buffering energy absorbing mechanisms are installed between the four outer side surfaces of the material storage box (2) and the four inner side walls of the box cover (12).

2. A battery pack with a waterproof protection structure according to claim 1, characterized in that: The waterproof sealing mechanism comprises a lower sealing edge (11) fixedly connected to the upper end of the battery box (1), an upper sealing edge (13) fixedly connected to the inner cavity of the box cover (12), and a sealing ring (14) inserted between the lower sealing edge (11) and the upper sealing edge (13), wherein the lower sealing edge (11) and the upper sealing edge (13) are in abutment with each other.

3. The battery pack with a waterproof protection structure according to claim 1, characterized in that: The bottom of the material storage box (2) is provided with a plurality of discharge ports (21) from top to bottom, the bottom of the material storage box (2) is provided with a plurality of dovetail grooves (22), and the lower port of the rubber corrugated material storage box (27) is inserted into the discharge port (21); The sealing mechanism comprises two cross bars (3) symmetrically mounted at the bottom of the material storage box (2), two L-shaped movable seats (31) symmetrically distributed between the two cross bars (3), and movable bars (32) symmetrically hinged on both sides of the L-shaped movable seats (31); one end of the movable bar (32) away from the L-shaped movable seat (31) is rotatably connected to one end of the cross bar (3) via a pin; the upper ends of the cross bar (3) and the L-shaped movable seat (31) are both fixedly connected with a dovetail slider (33) and a sealing pad (34); a plurality of dovetail sliders (33) and a plurality of sealing pads (34) are equidistantly mounted on the cross bar (3); the sealing pads (34) and the dovetail sliders (33) are alternately distributed at the upper end of the cross bar (3); and the upper ends of the cross bar (3) and the L-shaped movable seat (31) are both in sliding contact with the bottom surface of the material storage box (2).

4. The battery pack with a waterproof protection structure according to claim 3, characterized in that: The dovetail slider (33) is slidably connected to the dovetail groove (22), the sealing pad (34) is snap-fitted into the lower port of the rubber corrugated material storage box (27), the cavity of the rubber corrugated material storage box (27) contains fire extinguishing agent, and the lower pressing frame plate (28) is slidably connected to the inner side wall of the material storage box (2) up and down.

5. The battery pack with a waterproof protection structure according to claim 3, characterized in that: The pushing mechanism comprises a pull rope (35) fixedly connected to the L-shaped movable seat (31), and a thrust spring (36) sleeved on the pull rope (35), two ends of the thrust spring (36) respectively abut against the side surfaces of the fixed seat (24) and the L-shaped movable seat (31), a threading groove (25) is provided in the fixed seat (24), and four slots (26) are provided on the side surface of the threading groove (25), one end of the pull rope (35) away from the L-shaped movable seat (31) is inserted into the threading groove (25), and one end of the pull rope (35) is fixedly connected to the bottom of the threading groove (25).

6. The battery pack with a waterproof protection structure according to claim 5, characterized in that: The cutting mechanism comprises a movable plug plate (4) movably inserted into the slot (26), a blade (41) fixedly connected to one end of the movable plug plate (4), a pressing plate (42) fixedly connected to the end of the movable plug plate (4) away from the blade (41), and two C-shaped spring sheets (43) symmetrically fixedly connected to the side of the pressing plate (42), one side of the C-shaped spring sheet (43) is fixedly connected to the fixing seat (24), the outer side surface of the pressing plate (42) is abutted against a push plate (44), and one end of the push plate (44) is fixedly connected to the inner side wall of the battery box (1).

7. The battery pack with a waterproof protection structure according to claim 1, characterized in that: The buffer energy absorption mechanism comprises a pressure-resistant plate (5) abutting against the inner side wall of the box cover (12), two docking grooves (51) symmetrically arranged at both ends of the pressure-resistant plate (5), two clamping sleeves (52) symmetrically fixedly connected to the lower end of the side of the pressure-resistant plate (5), a trigger extrusion block (53) fixedly connected to the upper end of the side of the pressure-resistant plate (5), two transmission arm plates (54) rotatably connected to the two docking grooves (51) through a rotating shaft, two movable plates (55) respectively hinged to the ends of the two transmission arm plates (54), two concave seats (6) clamped on the sides of the two movable plates (55), two guide rods (61) symmetrically fixedly connected to the concave seats (6) in the upper and lower directions, an energy absorption spring (62) sleeved on the guide rods (61), and an S-shaped energy absorption spring (63) fixedly connected to the inner side of the concave seat (6), and the upper end of the L-shaped connecting plate (17) is plugged into the clamping sleeve (52).

8. The battery pack with a waterproof protection structure according to claim 7, characterized in that: The concave seat (6) is fixedly connected to the side of the storage box (2), the movable plate (55) is sleeved on the two guide rods (61), the movable plate (55) is slidably connected to the guide rods (61), the side of the movable plate (55) is in sliding contact with the inner side of the concave seat (6), the two ends of the energy absorbing spring (62) are respectively in contact with the concave seat (6) and the movable plate (55), and one side of the S-shaped energy absorbing spring (63) is in contact with the movable plate (55).

9. The battery pack with a waterproof protection structure according to claim 7, characterized in that: A plurality of grooves (23) are formed at the upper ends of the four side plates of the material storage box (2); one end of the trigger extrusion block (53) passes through the groove (23) and extends into the inner cavity of the material storage box (2); one side of the trigger extrusion block (53) is arranged in a sloped surface; the slope of the trigger extrusion block (53) is in extrusion contact with the lower pressing frame plate (28).

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