Aluminum battery box body

Abstract

The invention discloses an aluminum battery box, and relates to the technical field of battery boxes. The aluminum battery box comprises a bottom plate, an outer frame is fixedly connected to the top surface of the bottom plate, mounting seats are fixedly connected to the front and rear sides of the outer frame, a partition plate is arranged above the bottom plate, and an anti-impact energy-absorbing structure is arranged in the outer frame; the anti-impact energy absorption structure comprises four inclined plane impact blocks, every two of the four inclined plane impact blocks form a group, the four inclined plane impact blocks are fixedly connected to the left side wall and the right side wall of an outer frame correspondingly, an inner frame is fixedly connected to the top face of the partition plate, a plurality of connecting blocks are fixedly connected to the outer walls of the left side and the right side of the inner frame, and an edge tangent plane is arranged at the top end of the inner frame. The inner walls of the four corners of the outer frame are each fixedly connected with an anti-collision box, and the inner wall of each anti-collision box is fixedly connected with two deformation arc pieces. According to the anti-collision battery module, impact stress is transmitted to the periphery through the inner frame and the outer frame, the collision force can be dispersed to a vehicle body framework, and damage of local stress concentration to the battery module is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of battery boxes, and in particular to an aluminum battery box. Background Art

[0002] Aluminum battery cases are usually used for the external packaging of battery packs. Their main purpose is to provide physical protection, heat dissipation and electrical isolation. Aluminum alloy can provide sufficient mechanical strength to protect the internal batteries from external impact and pressure. At the same time, it has strong corrosion resistance and can adapt to a variety of environments. Depending on the type, size and usage environment of the battery, the aluminum battery case can be customized according to needs to ensure perfect adaptation to the installation and connection requirements of the battery pack.

[0003] Patent publication number CN209786013U discloses an aluminum battery case comprising an aluminum case body, two side beams, two end beams, multiple internal reinforcing ribs, a bottom plate, and multiple side lugs. The top of the aluminum case body is open, and the two side beams and the two end beams are each an inverted T-beam structure. The two side beams and the two end beams are welded to the four side edges of the bottom of the aluminum case body, multiple side lugs are welded to the two side beams, and multiple internal reinforcing ribs are welded parallel to the aluminum case body. The bottom of the aluminum case body, which is welded to the two side beams and the two end beams, is welded to the bottom plate. This patent has strong impact resistance, can share frontal and side impacts, and extend the battery pack's service life, reduce usage costs, reduce the overall weight of the battery pack, improve the internal space utilization of the battery pack, and increase the battery pack's energy density. However, this patent also has the problem that the battery can be easily punctured after impact, which can cause safety hazards. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides an aluminum battery box that solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an aluminum battery box, comprising a bottom plate, the top surface of the bottom plate is fixedly connected to an outer frame, the front and rear sides of the outer frame are fixedly connected to mounting seats, a partition plate is provided above the bottom plate, and an impact-resistant energy-absorbing structure is provided inside the outer frame; The anti-impact energy-absorbing structure includes four inclined surface punch blocks, and the four inclined surface punch blocks are fixedly connected to the left and right side walls of the outer frame in groups of two. The top surface of the partition plate is fixedly connected to the inner frame, and the left and right outer walls of the inner frame are fixedly connected to multiple connecting blocks. The top of the inner frame is provided with a corrugated cut surface, and the four corner inner walls of the outer frame are fixedly connected to anti-collision boxes, and the inner wall of each anti-collision box is fixedly connected to two deformation arc plates. The four corners of the outer frame and the inner frame bracket are fixedly connected with energy absorption boxes, and a deformation box is provided on the inner side of the energy absorption box. The two ends of the deformation box are fixedly connected with impact connecting blocks, and the sides of the anti-collision box are fitted with conduction connecting blocks.

[0006] According to the above technical solution, a flame retardant structure is provided inside the outer frame, a heat dissipation structure is provided inside the bottom plate, long grooves are provided on the front and rear side walls of the outer frame, and side through grooves are provided on the left and right side walls of the outer frame.

[0007] According to the above technical solution, one end of the connecting block away from the inner frame is fixedly connected to the outer frame, and one end of the impact connecting block away from the deformation box is fixedly connected to the energy absorbing box. The upper surface of the conductive connecting block is provided with an inclined sliding groove extending to the bottom surface. When the vehicle frame is deformed and squeezed by impact, the four corners of the outer frame bear pressure and squeeze the connected anti-collision box. The deformation and squeezing of the anti-collision box cause the deformation arc pieces connected on the inner side to bend and deform, and the force received is transmitted to the connected conductive connecting block through contact and transmitted to the energy absorbing box on the outer side of the inner frame. The deformation of the energy absorbing box offsets the impact received, causing the impact connecting block to extend and deform to both sides, and expand the contact area of ​​the force transmitted to the inner frame. The energy absorbing box will squeeze the inner deformation box, so that the two sides of the deformation box are connected, so as to reduce the impact and damage to the inner frame, avoid the deformation of the inner frame squeezing the battery to cause the battery to be punctured and catch fire, and absorb the energy through plastic deformation. Kinetic energy, reducing the impact force transmitted to the inside of the battery pack, avoiding battery cell rupture, short circuit or thermal runaway. At the same time, the impact stress is transmitted to the surrounding area through the inner frame and the outer frame, which can disperse the collision force to the body frame and reduce the damage to the battery module caused by local stress concentration. In addition, when the side of the outer frame is hit, the middle part of the side of the outer frame is deformed to make the inclined punch block close to the corrugated surface of the inner frame, so that the connection between the inner frame and the connecting block is broken, and the inclined punch block is used to extrude and guide the extruded side of the inner frame to apply force downward, so that the battery on the inside of the inner frame sinks due to the break between the connecting block and the inner frame, avoiding the deformation of the inner frame directly deforming and squeezing the battery, so that when the impacted side of the battery sinks or detaches, the battery pack can be prevented from collapsing toward the inside of the vehicle, reducing the risk of injury to the passengers' legs or torso, and reducing the stress transmitted to the inside of the battery, avoiding battery cell rupture, diaphragm perforation or internal short circuit.

[0008] According to the above technical solution, the flame retardant structure includes a slide block, and every two slide blocks are slidably connected to the inner sides of the two ends of each conductive link block respectively, and each conductive link block is slidably connected to two guide blocks on the side, and each slide block is fixedly connected to a push rod at one end away from the conductive link block, and a mixing tank is fixedly connected to the end of the mixing tank away from the push rod, and a sliding plug is fixedly connected to the outer side of the sliding plug for sliding connection with a central tank, and an offset groove tube is fixedly connected to the inner wall of the central tank, and a connecting rod is fixedly connected to the side of the sliding plug for sliding connection away from the mixing tank, and an upper push hinge rod is hingedly connected to the end of the connecting rod away from the sliding plug, and a discharge pipe is fixedly connected to the outer surface of the middle part of the central tank, and a discharge plug pipe is slidably connected to the inner side of the discharge pipe.

[0009] According to the above technical solution, the guide block is slidably connected to the oblique slide groove of the conductive connecting block, the guide block is fixedly connected to the outer frame, the center tank is fixedly connected to the inner wall of the outer frame, the dislocation groove tube is slidably connected to the inner wall of the sliding insert, and the side of the dislocation groove tube is provided with a side groove, and the discharge plug tube is hingedly connected to the push hinge rod. When the side of the outer frame or the frame is hit and the conductive connecting block is impacted, the conductive connecting block will slide along the guide block and push the two connected slide blocks to move under force through the oblique slide groove through the guide block. When the slide block moves, it will push the push rod to move, so that the push rod pushes the connected mixing tank close to the fixed center tank. At this time, the mixing tank pushes the connected sliding insert and the center tank to slide. The offset grooved pipe fixed on the inner side of the center tank extends from the inner side of the sliding insert to the inside of the mixing tank. At this time, the mixing tank is connected to the center tank through the side groove of the offset grooved pipe. The mixing tank is connected to the center tank, so that the polyurethane and phosphate flame retardants filled inside are mixed to quickly generate foam flame retardant, or filled with phenolic resin and physical foaming agent, which can provide better flame retardant effect in high temperature environment, or filled with epoxy resin and acid source, carbon source, and gas source. The flame retardant system can expand and foam when heated to form an insulating carbon layer. The material mixing and foaming flame retardant is triggered according to the degree of impact, so that it can respond quickly at the first time, improve safety through prevention, and build a dynamic safety barrier at the moment of collision.

[0010] According to the above technical solution, the heat dissipation structure includes a battery separator, which extends from the top surface of the separator to the bottom surface, and air injection grooves are provided on the front and rear sides of the bottom plate. The bottom surface of the separator is fixedly connected to an upper flat tube, and the inner bottom surface of the bottom plate is fixedly connected to a lower flat tube, one end of the lower flat tube is fixedly connected to an interwoven connecting tube, the end of the upper flat tube away from the interwoven connecting tube is fixedly connected to a liquid supply tube, and the end of the lower flat tube away from the interwoven connecting tube is fixedly connected to a liquid return tube.

[0011] According to the above technical solution, the bottom surface of the lower flat tube is fixedly connected to a fixed axis plate, the center of the fixed axis plate is rotatably connected to a turbofan blade, the bottom end of the rotating shaft of the turbofan blade is fixedly connected to a peristaltic handle, and a peristaltic hose is provided on the outside of the peristaltic handle.

[0012] According to the above technical solution, one end of the interwoven connecting tube away from the lower flat tube is fixedly connected to the upper flat tube, and the side of the peristaltic handle is rotatably connected to two peristaltic wheels. The two ends of the peristaltic hose are respectively fixedly connected to the liquid supply pipe and the liquid return pipe, and the peristaltic hose is fixedly connected to the contact position of the lower flat tube. When the vehicle is driving, the airflow under the vehicle passes through the bottom of the vehicle into the air filling groove at the front end of the bottom plate, passes through the side of the battery partition, enters between the bottom plate and the partition plate, and is discharged from the air filling groove at the rear end of the bottom plate. In this process, the airflow passes through the turbofan blades to drive the connected peristaltic handle to rotate, so that the peristaltic handle squeezes the surrounding peristaltic hose through the connected peristaltic wheel. The squeezing of the peristaltic hose will push the internal liquid to flow, so that the liquid in the peristaltic hose pushes the liquid in the connected liquid supply pipe to flow into the end of the upper flat tube, and the other end of the peristaltic hose passes through the corresponding The return liquid pipe is extracted from the end of the lower flat tube. When the liquid in the liquid supply pipe flows into the upper flat tube, it flows through the upper flat tube to the interwoven connecting tube at the other end and flows into the lower flat tube. The liquid in the lower flat tube returns to the peristaltic hose through the connected return liquid pipe to complete the cycle. The upper flat tube is close to the partition plate to absorb the heat dissipated by the battery, and the heat is taken away and transferred to the lower flat tube through the flow of liquid. At the same time, the battery side directly transfers the heat to the outer surface of the upper flat tube through the battery partition, and the lower flat tube dissipates the heat from the bottom of the bottom plate, allowing the airflow through the upper and lower flat tubes to take away part of the heat. During intense driving or high-speed cruising, the battery heat generation increases, and the stronger airflow just improves the cooling efficiency at the same time, forming an adaptive balance, avoiding overcooling or insufficient heat dissipation problems caused by fixed pump speeds in traditional systems, preventing car batteries from overheating and improving battery working efficiency.

[0013] The present invention provides an aluminum battery box. It has the following beneficial effects: The present invention is provided with an impact-resistant energy-absorbing structure, which transmits the impact stress to the surrounding area through the inner frame and the outer frame, thereby dispersing the collision force to the vehicle body frame, reducing the damage to the battery module caused by local stress concentration, and at the same time, the inclined punch block squeezes and guides the extruded inner frame to exert force downward, so that the battery inside the inner frame sinks due to the break between the connecting block and the inner frame, avoiding the deformation of the inner frame directly deforming and squeezing the battery. When the impacted side of the battery sinks or detaches, the battery pack can be prevented from collapsing toward the inside of the vehicle, reducing the risk of injury to the legs or torso of passengers, and reducing the stress transmitted to the inside of the battery, thereby avoiding battery cell rupture, diaphragm perforation or internal short circuit. The present invention is provided with a flame retardant structure, which triggers the material mixing and foaming to flame retardant according to the degree of collision, thereby being able to respond quickly at the first time, improving safety through prevention, building a dynamic safety barrier at the moment of collision, and achieving different fire retardant effects by replacing different filling materials; The present invention, by providing a heat dissipation structure, dissipates heat from the bottom of the base plate, allowing airflow through the upper and lower flat tubes to carry away some of the heat. During intense driving or high-speed cruising, the battery heat generation increases, and the stronger airflow just improves the cooling efficiency at the same time, forming an adaptive balance, avoiding the overcooling or insufficient heat dissipation problems caused by the fixed pump speed of traditional systems, preventing vehicle battery overheating and improving battery operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall rear-view stereo structure of the present invention; Figure 3 It is a schematic structural diagram of the overall impact-resistant energy-absorbing structure of the present invention; Figure 4 For the entire present invention Figure 3 Schematic diagram of the enlarged structure of A in the middle; Figure 5 This is a schematic structural diagram of the integral energy absorption box of the present invention; Figure 6 This is a schematic structural diagram of the overall flame retardant structure of the present invention; Figure 7 For the entire present invention Figure 6 Schematic diagram of the structure of B; Figure 8 It is a structural schematic diagram of the overall heat dissipation structure of the present invention; Figure 9 It is a structural schematic diagram of the overall battery separator arrangement of the present invention.

[0015] Figure: 1, bottom plate; 2, outer frame; 3, mounting seat; 4, partition plate; 5, impact-resistant energy-absorbing structure; 51, inclined punch block; 52, inner frame; 53, fluted surface; 54, connecting block; 55, energy-absorbing box; 56, deformation box; 57, impact connecting block; 58, conduction connecting block; 59, anti-collision box; 510, deformation arc piece; 6, flame-retardant structure; 61, guide block; 62, chute block; 63, push rod; 64, mixing tank; 65, center Tank; 66, offset slot tube; 67, sliding insert; 68, connecting rod; 69, push-up hinge rod; 610, discharge plug tube; 611, discharge pipe; 7, heat dissipation structure; 71, battery separator; 72, air filling slot; 73, upper flat tube; 74, lower flat tube; 75, interwoven connecting tube; 76, fixed axis plate; 77, peristaltic handle; 78, peristaltic hose; 79, return liquid pipe; 710, liquid supply pipe; 711, turbofan blade; 8, long slot; 9, side through slot. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] See also Figure 1-9 The embodiment of the present invention is as follows: an aluminum battery box, comprising a bottom plate 1, an outer frame 2 fixedly connected to the top surface of the bottom plate 1, mounting seats 3 fixedly connected to the front and rear sides of the outer frame 2, a partition plate 4 provided above the bottom plate 1, and an impact-resistant energy-absorbing structure 5 provided inside the outer frame 2; The impact-resistant energy-absorbing structure 5 includes four inclined punch blocks 51, and the four inclined punch blocks 51 are fixedly connected to the left and right side walls of the outer frame 2 in groups of two. The top surface of the partition plate 4 is fixedly connected to the inner frame 52, and the left and right outer walls of the inner frame 52 are fixedly connected to multiple connecting blocks 54. The top of the inner frame 52 is provided with a corrugated cut surface 53. The inner walls of the four corners of the outer frame 2 are fixedly connected to anti-collision boxes 59, and the inner wall of each anti-collision box 59 is fixedly connected to two deformable arc pieces 510. The four corners of the outer frame 2 and the inner frame 52 bracket are fixedly connected with energy absorption boxes 55. The inner side of the energy absorption box 55 is provided with a deformation box 56. The two ends of the deformation box 56 are fixedly connected with impact connecting blocks 57. The side of the anti-collision box 59 is fitted There is a conductive connecting block 58, a flame retardant structure 6 is provided inside the outer frame 2, a heat dissipation structure 7 is provided inside the bottom plate 1, long grooves 8 are provided on the front and rear side walls of the outer frame 2, and side through grooves 9 are provided on the left and right side walls of the outer frame 2. The end of the connecting block 54 away from the inner frame 52 is fixedly connected to the outer frame 2, and the end of the impact connecting block 57 away from the deformation box 56 is fixedly connected to the energy absorption box 55. The upper surface of the conductive connecting block 58 is provided with an inclined sliding groove that runs through the bottom surface. When the frame is impacted and deformed and squeezes the outer frame 2, the four corners of the outer frame 2 bear pressure and squeeze the connected anti-collision box 59. The deformation and extrusion of the anti-collision box 59 causes the deformation arc piece 510 connected on the inner side to bend and deform, and the force received is transmitted through the contact transmission The energy absorption box 57 is extended to both sides and deformed to expand the contact area of ​​the force transmitted to the inner frame 52. The energy absorption box 55 squeezes the inner deformation box 56, so that the deformation box 56 is connected on both sides to reduce the impact and damage to the inner frame 52, and avoid the deformation of the inner frame 52 squeezing the battery so that the battery is punctured and catches fire. Kinetic energy is absorbed by plastic deformation, reducing the impact force transmitted to the inside of the battery pack, avoiding battery cell rupture, short circuit or thermal runaway. At the same time, the stress of the impact is transmitted to the surrounding area through the inner frame 52 and the outer frame 2, which can disperse the collision force to the vehicle body frame and reduce local In addition, when the side of the outer frame 2 is hit, the middle part of the side of the outer frame 2 is deformed so that the inclined punch block 51 is close to the corrugated surface 53 of the inner frame 52, so that the connection between the inner frame 52 and the connecting block 54 is broken, and the inclined punch block 51 is squeezed and guided to apply force downward on one side of the extruded inner frame 52, so that the battery on the inner side of the inner frame 52 sinks due to the break between the connecting block 54 and the inner frame 52, avoiding the deformed inner frame 52 directly deforming and squeezing the battery, so that when the impacted side of the battery sinks or detaches, the battery pack can be prevented from collapsing toward the inside of the vehicle, reducing the risk of injury to the passengers' legs or torso, and reducing the stress transmitted to the inside of the battery, avoiding battery cell rupture, diaphragm perforation or internal short circuit.

[0018] The flame retardant structure 6 includes a chute block 62, each two chute blocks 62 are respectively slidably connected to the inner sides of the two ends of each conductive connecting block 58, and the side of each conductive connecting block 58 is slidably connected to two guide blocks 61, and each chute block 62 is fixedly connected to a push rod 63 at one end away from the conductive connecting block 58, and a mixing tank 64 is fixedly connected to the end of the push rod 63 away from the guide block 61. The mixing tank 64 is fixedly connected to a sliding insert 67 on one side away from the push rod 63. The outer side of the sliding insert 67 is slidably connected to a central tank 65. The inner wall of the central tank 65 is fixedly connected to a staggered groove pipe 66. The sliding insert 67 is away from the mixing tank. A connecting rod 68 is fixedly connected to one side of the closing tank 64. The end of the connecting rod 68 away from the sliding plug 67 is hingedly connected to an upward push hinge rod 69. A discharge pipe 611 is fixedly connected to the outer surface of the middle part of the intermediate tank 65. A discharge plug pipe 610 is slidably connected to the inner side of the discharge pipe 611. The guide block 61 is slidably connected to the inclined groove of the conductive connecting block 58. The guide block 61 is fixedly connected to the outer frame 2. The intermediate tank 65 is fixedly connected to the inner wall of the outer frame 2. The staggered groove pipe 66 is slidably connected to the inner wall of the sliding plug 67, and a side groove is opened on the side of the staggered groove pipe 66. The discharge plug pipe 610 is hingedly connected to the upward push hinge rod 69. When the side of the outer frame 2 or the frame is hit and the conductive connecting block 58 is impacted, the conductive connecting block 58 will slide along the guide block 61, and the guide block 61 slides through the inclined slide groove to push the two connected slide blocks 62 to move under force. When the slide block 62 moves, it will push the push rod 63 to move, so that the push rod 63 pushes the connected mixing tank 64 to approach the fixed center tank 65. At this time, the mixing tank 64 pushes the connected sliding plug 67 and the center tank 65 to slide, and allows the offset groove pipe 66 fixed on the inner side of the center tank 65 to extend from the inside of the sliding plug 67 to the inside of the mixing tank 64. At this time, the mixing tank 64 passes through the offset groove The side grooves of the slotted tube 66 are connected to the center tank 65, and are connected to the center tank 65 through the mixing tank 64, so that the polyurethane and phosphate flame retardants filled inside are mixed to quickly generate foam flame retardant, or filled with phenolic resin and physical foaming agent, which can provide better flame retardant effect in high temperature environment, or filled with a mixture of epoxy resin and acid source, carbon source, and gas source, which can expand the flame retardant system and foam when heated to form an insulating carbon layer. The material mixing and foaming flame retardant is triggered according to the degree of impact, so that it can respond quickly at the first time, improve safety through prevention, and build a dynamic safety barrier at the moment of collision.

[0019] The heat dissipation structure 7 includes a battery separator 71, which extends from the top surface of the partition plate 4 to the bottom surface. Air filling grooves 72 are provided on the front and rear sides of the bottom plate 1. The bottom surface of the partition plate 4 is fixedly connected to an upper flat tube 73. The inner bottom surface of the bottom plate 1 is fixedly connected to a lower flat tube 74. One end of the lower flat tube 74 is fixedly connected to an interwoven connecting tube 75. The end of the upper flat tube 73 away from the interwoven connecting tube 75 is fixedly connected to a liquid supply tube 710. The end of the lower flat tube 74 away from the interwoven connecting tube 75 is fixedly connected to a liquid return tube 79. The bottom surface of the lower flat tube 74 is fixedly connected to a fixed shaft plate 76. The center of the fixed shaft plate 76 is rotatably connected to a turbofan blade 711. The turbofan blade 711 is fixedly connected to the bottom surface of the turbofan blade 711. The bottom end of the rotating shaft is fixedly connected to a peristaltic handle 77, and a peristaltic hose 78 is provided on the outside of the peristaltic handle 77. The end of the interwoven connecting tube 75 away from the lower flat tube 74 is fixedly connected to the upper flat tube 73. The side of the peristaltic handle 77 is rotatably connected to two peristaltic wheels. The two ends of the peristaltic hose 78 are respectively fixedly connected to the liquid supply pipe 710 and the liquid return pipe 79. The peristaltic hose 78 is fixedly connected to the contact position of the lower flat tube 74. When the vehicle is driving, the airflow under the vehicle enters the air filling groove 72 at the front end of the bottom plate 1 through the bottom of the vehicle, passes through the side of the battery partition 71, enters between the bottom plate 1 and the partition plate 4, and is discharged from the air filling groove 72 at the rear end of the bottom plate 1. In this process, The airflow passing through the turbofan blades 711 will drive the connected peristaltic handle 77 to rotate, causing the peristaltic handle 77 to squeeze the surrounding peristaltic hose 78 through the connected peristaltic wheel. The squeezing of the peristaltic hose 78 will promote the flow of internal liquid, so that the liquid in the peristaltic hose 78 pushes the liquid in the connected liquid supply pipe 710 to flow into the end of the upper flat tube 73, and the other end of the peristaltic hose 78 is extracted from the end of the lower flat tube 74 through the connected liquid return pipe 79. When the liquid in the liquid supply pipe 710 flows into the upper flat tube 73, it flows through the upper flat tube 73 to the interwoven connecting pipe 75 at the other end and flows into the lower flat tube 74, and the liquid in the lower flat tube 74 returns to the peristaltic hose through the connected liquid return pipe 79. The circulation is completed in the tube 78, and the upper flat tube 73 is close to the partition plate 4 to absorb the heat dissipated by the battery, and the heat is taken away and transferred to the lower flat tube 74 through the flow of liquid. At the same time, the side of the battery directly transfers the heat to the outer surface of the upper flat tube 73 through the battery separator 71, and the lower flat tube 74 dissipates the heat from the bottom of the bottom plate 1, allowing the air flow to pass through the upper flat tube 73 and the lower flat tube 74 to take away some of the heat. During intense driving or high-speed cruising, the battery heat generation increases, and the stronger airflow just improves the cooling efficiency at the same time, forming an adaptive balance, avoiding the overcooling or insufficient heat dissipation problems caused by the fixed pump speed of the traditional system, preventing the car battery from overheating and improving the battery working efficiency.

[0020] Working principle: When the frame is impacted and deformed to squeeze the outer frame 2, the four corners of the outer frame 2 bear pressure to squeeze the connected anti-collision box 59, and the deformation and extrusion of the anti-collision box 59 causes the deformation arc piece 510 connected on the inner side to bend and deform, and transmit the force received to the connected conductive link 58 through contact, which is transmitted to the energy absorption box 55 on the outside of the inner frame 52. The deformation of the energy absorption box 55 offsets the impact received, causing the impact link 57 to extend and deform to both sides, and expand the contact area of ​​the force transmitted to the inner frame 52. The energy absorption box 55 will squeeze the inner deformation box 56, so that the two sides of the deformation box 56 are connected to reduce the impact and damage to the inner frame 52, and avoid the deformation of the inner frame 52 to squeeze the battery so that the battery is punctured and catches fire. The kinetic energy is absorbed by plastic deformation, reducing the impact force transmitted to the inside of the battery pack, and avoiding battery rupture, short circuit or thermal runaway. At the same time , the impact stress is transmitted to the surroundings through the inner frame 52 and the outer frame 2, which can disperse the collision force to the vehicle body frame, reducing the damage to the battery module caused by local stress concentration. In addition, when the side of the outer frame 2 is hit, the middle part of the side of the outer frame 2 is deformed so that the inclined punch block 51 is close to the corrugated surface 53 of the inner frame 52, so that the connection between the inner frame 52 and the connecting block 54 is broken, and the inclined punch block 51 is squeezed and guided to apply force downward on one side of the extruded inner frame 52, so that the battery inside the inner frame 52 sinks due to the break between the connecting block 54 and the inner frame 52, avoiding the deformed inner frame 52 directly deforming and squeezing the battery, so that when the impacted side of the battery sinks or detaches, the battery pack can be prevented from collapsing toward the inside of the vehicle, reducing the risk of injury to the legs or torso of the passengers, and reducing the stress transmitted to the inside of the battery, avoiding battery cell rupture, diaphragm perforation or internal short circuit; When the side of the outer frame 2 or the frame is hit and the conductive connecting block 58 is impacted, the conductive connecting block 58 will slide along the guide block 61, and the guide block 61 slides through the inclined slide groove to push the two connected slide blocks 62 to move under force. When the slide block 62 moves, it will push the push rod 63 to move, so that the push rod 63 pushes the connected mixing tank 64 to approach the fixed center tank 65. At this time, the mixing tank 64 pushes the connected sliding plug 67 and the center tank 65 to slide, and allows the offset groove pipe 66 fixed on the inner side of the center tank 65 to extend from the inside of the sliding plug 67 to the inside of the mixing tank 64. At this time, the mixing tank 64 passes through the offset groove The side grooves of the slotted tube 66 are connected to the central tank 65, and are connected to the central tank 65 through the mixing tank 64, so that the polyurethane and phosphate flame retardants filled in the inner parts are mixed to quickly generate foam flame retardant, or filled with phenolic resin and physical foaming agent, which can provide better flame retardant effect in high temperature environment, or filled with epoxy resin and acid source, carbon source, gas source mixture, which can expand the flame retardant system to foam when heated to form a heat-insulating carbon layer, and trigger the material mixing foaming flame retardant according to the degree of collision, so as to be able to respond quickly at the first time, improve safety through prevention, and build a dynamic safety barrier at the moment of collision; When the vehicle is driving, the airflow under the vehicle enters the air filling groove 72 at the front end of the bottom plate 1 through the bottom of the vehicle, passes through the side of the battery partition 71, enters between the bottom plate 1 and the partition plate 4, and is discharged from the air filling groove 72 at the rear end of the bottom plate 1. In this process, the airflow passes through the turbofan blades 711, which drives the connected peristaltic handle 77 to rotate, causing the peristaltic handle 77 to squeeze the surrounding peristaltic hose 78 through the connected peristaltic wheel. The squeezing of the peristaltic hose 78 will promote the flow of internal liquid, so that the liquid in the peristaltic hose 78 pushes the liquid in the connected liquid supply pipe 710 to flow into the end of the upper flat tube 73, and the other end of the peristaltic hose 78 is extracted from the end of the lower flat tube 74 through the connected liquid return pipe 79. When the liquid in the liquid supply pipe 710 flows into the upper flat tube 73, it flows to the intersection at the other end through the upper flat tube 73. The woven tube 75 flows into the lower flat tube 74, and the liquid in the lower flat tube 74 returns to the peristaltic hose 78 through the connected return pipe 79 to complete the circulation. The upper flat tube 73 is close to the partition plate 4 to absorb the heat dissipated by the battery, and the heat is taken away and transferred to the lower flat tube 74 through the flow of liquid. At the same time, the battery side directly transfers the heat to the outer surface of the upper flat tube 73 through the battery separator 71, and the lower flat tube 74 dissipates the heat from the bottom of the bottom plate 1, allowing the air flow to pass through the upper flat tube 73 and the lower flat tube 74 to take away part of the heat. During intense driving or high-speed cruising, the battery heat generation increases, and the stronger airflow just improves the cooling efficiency at the same time, forming an adaptive balance, avoiding the overcooling or insufficient heat dissipation problems caused by the fixed pump speed of the traditional system, preventing the car battery from overheating and improving the battery working efficiency.

[0021] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An aluminum battery box, comprising a bottom plate (1), characterized in that: The top surface of the bottom plate (1) is fixedly connected to an outer frame (2), the front and rear sides of the outer frame (2) are fixedly connected to mounting seats (3), a partition plate (4) is provided above the bottom plate (1), and an impact-resistant energy-absorbing structure (5) is provided inside the outer frame (2); The anti-impact energy absorption structure (5) comprises four inclined punch blocks (51), and the four inclined punch blocks (51) are fixedly connected to the left and right side walls of the outer frame (2) in pairs. The top surface of the partition plate (4) is fixedly connected to the inner frame (52), and the left and right outer walls of the inner frame (52) are fixedly connected to a plurality of connection blocks (54). The top of the inner frame (52) is provided with a corrugated cut surface (53). The inner walls of the four corners of the outer frame (2) are fixedly connected to anti-collision boxes (59), and the inner wall of each anti-collision box (59) is fixedly connected to two deformable arc sheets (510). The four corners of the bracket of the outer frame (2) and the inner frame (52) are fixedly connected to energy absorption boxes (55), and a deformation box (56) is provided on the inner side of the energy absorption box (55). The two ends of the deformation box (56) are fixedly connected to impact connecting blocks (57), and the side of the anti-collision box (59) is fitted with a conductive connecting block (58).

2. The aluminum battery box according to claim 1, characterized in that: The outer frame (2) is provided with a flame retardant structure (6) inside, the bottom plate (1) is provided with a heat dissipation structure (7) inside, the front and rear side walls of the outer frame (2) are provided with long grooves (8), and the left and right side walls of the outer frame (2) are provided with side through grooves (9).

3. The aluminum battery box according to claim 2, characterized in that: The end of the connecting block (54) away from the inner frame (52) is fixedly connected to the outer frame (2), the end of the impact connecting block (57) away from the deformation box (56) is fixedly connected to the energy absorption box (55), and the upper surface of the conductive connecting block (58) is provided with an inclined sliding groove extending through the bottom surface.

4. The aluminum battery box according to claim 3, characterized in that: The flame retardant structure (6) includes a chute block (62), each two chute blocks (62) are slidably connected to the inner sides of both ends of each conductive link block (58), and the side of each conductive link block (58) is slidably connected to two guide blocks (61). The end of each chute block (62) away from the conductive link block (58) is fixedly connected to a push rod (63), and the end of the push rod (63) away from the guide block (61) is fixedly connected to a mixing tank (64), and the end of the mixing tank (64) away from the push rod (63) is fixedly connected to a sliding plug. The outer side of the sliding insert tube (67) is slidably connected to the center tank (65), the inner wall of the center tank (65) is fixedly connected to the offset groove tube (66), the side of the sliding insert tube (67) away from the mixing tank (64) is fixedly connected to the connecting rod (68), the end of the connecting rod (68) away from the sliding insert tube (67) is hingedly connected to the push-up hinge rod (69), the outer surface of the middle part of the center tank (65) is fixedly connected to the discharge pipe (611), and the inner side of the discharge pipe (611) is slidably connected to the discharge plug pipe (610).

5. The aluminum battery box according to claim 4, characterized in that: The guide block (61) is slidably connected to the inclined groove of the conductive connecting block (58), the guide block (61) is fixedly connected to the outer frame (2), the center tank (65) is fixedly connected to the inner wall of the outer frame (2), the offset groove tube (66) is slidably connected to the inner wall of the sliding insert (67), and a side groove is provided on the side of the offset groove tube (66), and the discharge plug tube (610) is hingedly connected to the push-up hinge rod (69).

6. The aluminum battery box according to claim 5, characterized in that: The heat dissipation structure (7) includes a battery separator (71), the battery separator (71) extends from the top surface of the separator (4) to the bottom surface, and air injection grooves (72) are provided on both the front and rear sides of the bottom plate (1). The bottom surface of the separator (4) is fixedly connected to an upper flat tube (73), the inner bottom surface of the bottom plate (1) is fixedly connected to a lower flat tube (74), one end of the lower flat tube (74) is fixedly connected to an interwoven connecting tube (75), the end of the upper flat tube (73) away from the interwoven connecting tube (75) is fixedly connected to a liquid supply tube (710), and the end of the lower flat tube (74) away from the interwoven connecting tube (75) is fixedly connected to a liquid return tube (79).

7. The aluminum battery box according to claim 6, characterized in that: The bottom surface of the lower flat tube (74) is fixedly connected to a fixed axis plate (76), the center of the fixed axis plate (76) is rotatably connected to a turbofan blade (711), the bottom end of the rotating shaft of the turbofan blade (711) is fixedly connected to a peristaltic handle (77), and a peristaltic hose (78) is provided on the outside of the peristaltic handle (77).

8. The aluminum battery box according to claim 7, characterized in that: One end of the interwoven connecting tube (75) away from the lower flat tube (74) is fixedly connected to the upper flat tube (73); the side of the peristaltic handle (77) is rotatably connected to two peristaltic wheels; the two ends of the peristaltic hose (78) are respectively fixedly connected to the liquid supply pipe (710) and the liquid return pipe (79); and the peristaltic hose (78) is fixedly connected to the contact position with the lower flat tube (74).

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