Anti-collision device for battery pack of new energy automobile
By combining rigid protection, buffering, and auxiliary devices, the problem of insufficient flexibility and protection in the anti-collision devices for new energy vehicle battery packs is solved, achieving comprehensive protection of the battery pack and improved heat dissipation efficiency.
Patent Information
- Application Number
- CN202610072641.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-20
- Publication Date
- 2026-05-12
AI Technical Summary
Existing anti-collision devices for new energy vehicle battery packs have a long reaction time when sensing obstacles, and are prone to wear and tear due to repeated movement. Inertial impact forces also affect the battery pack, resulting in insufficient protection flexibility.
Rigid protective devices and buffer devices are adopted, including components such as sliding grooves, sliding rods, buffer springs, hinge plates, impact plates, and airbags. The sliding block and hinge plate work together to achieve flexible protection of the battery pack. The buffer device provides comprehensive protection and cushioning through the cooperation of hollow plates, protective plates, and airbags. The auxiliary device uses components such as rotating rings, fixing rods, and soft sponges to clean insects and ants from the surface of the airbags and accelerate heat dissipation.
It achieves flexible protection for the battery pack under different obstacle conditions, reduces the impact of direct impact, avoids wear and inertial damage, improves heat dissipation efficiency, and prevents insects and ants from biting the airbag.
Smart Images
Figure CN122025960A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of anti-collision devices for new energy vehicle battery packs, specifically to an anti-collision device for a new energy vehicle battery pack. Background Technology
[0002] Against the backdrop of global advocacy for environmental protection and sustainable development, the new energy vehicle industry is booming. As an important alternative to traditional fuel vehicles, its market share is increasing year by year. As a core component of new energy vehicles, the battery pack not only provides continuous and stable power output for the vehicle, but its safety and reliability are also directly related to the performance of the whole vehicle, the safety of the passengers, and the service life of the vehicle. Once the battery pack is hit during vehicle operation, it is very likely to cause serious safety accidents such as internal short circuits, fires, or even explosions. This will not only cause serious damage to the vehicle, but also pose a huge threat to the life and property safety of the passengers.
[0003] A new energy vehicle battery pack anti-collision device, patent publication number CN118457244A, includes a chassis and a battery pack. The battery pack is vertically slidably connected to the chassis. It includes a lifting mechanism for controlling the vertical lifting of the battery pack relative to the chassis, and a triggering mechanism for driving the lifting mechanism to operate by sensing protrusions on the road surface that could impact the battery pack. This method of using the triggering mechanism to sense protrusions on the road surface that could impact the battery pack and drive the lifting mechanism to control the vertical lifting of the battery pack relative to the chassis effectively avoids the risk of impact to the battery pack, while maintaining a gap above the battery pack to provide sufficient space for heat dissipation and other vehicle components.
[0004] However, the triggering mechanism of the aforementioned new energy vehicle battery pack anti-collision device needs a certain reaction time to sense the obstacle, and the repeated up and down movement of the battery pack is also prone to wear and tear. At the same time, the inertia generated when the triggering mechanism is hit will also cause a certain impact force on the entire device, which will still affect the battery pack to some extent. Therefore, the entire anti-collision device is relatively rigid and difficult to change flexibly to better protect the battery pack. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides an anti-collision device for new energy vehicle battery packs, solving the problems mentioned in the background section.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a new energy vehicle battery pack anti-collision device, including a chassis, through which a battery pack body is passed and slidably connected, a rigid protective device is provided below the chassis to replace the battery pack body in receiving impacts, and a buffer device is provided below the chassis to buffer between the rigid protective device and the battery pack body. The rigid protective device includes a sliding groove, a sliding rod, a sliding block, a buffer spring, a hinge plate, and a strike plate. The sliding groove is opened at both ends of the chassis. The sliding rod is fixedly connected to the inner wall of the sliding groove. The sliding rod passes through the sliding block and is slidably connected at the point of penetration. One end of the buffer spring is fixedly connected to the side wall of the sliding block. When the sliding block slides, it stretches the buffer spring.
[0007] According to the above technical solution, the other end of the buffer spring is fixedly connected to the side wall of the sliding groove, the hinge plate is hinged to the bottom surface of the sliding block, and the sliding groove, sliding rod, sliding block and buffer spring are all provided in two sets. The impact plate is hinged at both ends to the ends of the two sets of hinge plates away from the sliding block. When the sliding block slides, the impact plate is driven to move up and down through the hinge plate.
[0008] According to the above technical solution, the buffer device includes a through groove, a hollow plate, a protective plate, a limiting plate, a hollow rod, a support rod, an air storage box, a sealing plate, a through hole, an air inflator, and an air bag. The through groove is opened at both ends of the chassis. The hollow plate is fixedly connected to the front and rear sides of the impact plate. When the impact plate moves up and down, it drives the hollow plate to move up and down as well.
[0009] According to the above technical solution, the protective plate penetrates the hollow plate and is slidably connected at the penetration point. The protective plate penetrates the chassis and is slidably connected at the penetration point. The side wall of the protective plate is attached to the inner wall of the through groove. The limiting plate is fixedly connected to the upper surface of the protective plate. The limiting plate penetrates the chassis and is slidably connected at the penetration point. When the hollow plate moves to the limiting plate, it pushes the limiting plate to slide upward.
[0010] According to the above technical solution, the hollow rod is fixedly connected to the upper surface of the impact plate, the hollow rod penetrates the chassis and is slidably connected at the penetration point, the support rod is fixedly connected to the upper surface of the chassis, the hollow rod penetrates the support rod and is slidably connected at the penetration point, the gas storage box is fixedly connected to the upper end of the support rod, and the hollow rod continues to slide, penetrating the gas storage box.
[0011] According to the above technical solution, the air storage box is connected to the support rod, the sealing plate is slidably connected to the inner wall of the air storage box, the through hole is opened on the surface of the sealing plate, the air pumping chamber is opened on the inner wall of the impact plate, the air bag is fixedly connected to the upper surface of the impact plate, the hollow rod is connected to the air pumping chamber, the air pumping chamber is connected to the air bag, and the hollow rod slides upward in the air storage box, pushing the sealing plate to compress the air in the air storage box.
[0012] According to the above technical solution, an auxiliary device for maintaining the buffer device is provided above the buffer device. The auxiliary device includes a rotating ring, a fixed rod, a soft sponge, a connecting rod, a ball, a hinge joint, a hinge rod, a hinge ball, and a spoiler. The hollow rod passes through the rotating ring and is rotatably connected at the point of penetration.
[0013] According to the above technical solution, the fixing rod is fixedly connected to the outer wall of the rotating ring, the soft sponge is fixedly connected to the bottom surface of the fixing rod, the connecting rod is fixedly connected to the outer wall of the rotating ring, the sphere is fixedly connected to the end of the connecting rod away from the rotating ring, the inner wall of the hinge joint is in contact with the outer wall of the sphere, and the rotation of the connecting rod drives the rotating ring to rotate.
[0014] According to the above technical solution, the hinge rod is fixedly connected to the outer wall of the hinge joint, the hinge ball is fixedly connected to the end of the hinge rod away from the hinge joint, the side wall of the hinge plate is provided with a circular groove, the outer wall of the hinge ball is in contact with the inner wall of the circular groove, the spoiler is fixedly connected to the outer wall of the hinge rod, and the rotation of the hinge rod causes the spoiler to swing.
[0015] This invention provides an anti-collision device for battery packs in new energy vehicles. It has the following beneficial effects: 1. This invention features a rigid protective device. When the obstruction in front of or behind the vehicle is low or soft, it works with a sliding groove, sliding rod, sliding block, buffer spring, and hinge plate to lift the impact plate, allowing it to directly protect the battery pack body from below. Alternatively, the impact plate and hinge plate can bend the obstruction due to their own weight, allowing the entire device to pass directly over the obstruction without affecting the battery pack body. This solves the problem of the device's anti-collision device being unable to flexibly adjust its height, resulting in rigid protection. When the obstruction in front of or behind the vehicle is high, the impact plate replaces the battery pack body in contact with the obstruction, preventing the battery pack body from directly impacting the obstruction. This solves the problem that even if the battery pack body can slide up and down, the directly contacting parts will still be subjected to a certain amount of impact force.
[0016] 2. This invention incorporates a buffer device and protective components at the front and rear of the battery pack body. When the rigid protective device protects the battery pack body, the hollow plate and protective plate are folded together with the through-slot and limiting plate, providing more comprehensive protection for the battery pack body. This prevents the impact plate from being affected by the front and rear protective components and thus avoids damage to the battery pack body from animal impacts. Furthermore, when the impact plate protects the battery pack body, the hollow rod, support rod, air tank, sealing plate, through-hole, and air chamber inflate the airbag, providing buffering between the battery pack body and the impact plate. This allows the battery pack body to apply a downward elastic force to the impact plate as it moves upward, preventing excessive impact and ensuring the impact plate doesn't move too quickly, intermittently impacting the battery pack body. This solves the problem of potential damage to the battery pack body due to inertia caused by the impact plate.
[0017] 3. This invention includes an auxiliary device that, when the rigid protective device is in motion, works in conjunction with a rotating ring, a fixed rod, a soft sponge, a connecting rod, a ball, a hinge joint, a hinge rod, and a hinge ball to clean the surface of the airbag, repelling any insects or ants that might crawl onto the airbag surface. This prevents insects or ants from biting the airbag surface, causing air leakage and affecting the normal use of the buffer device. This solves the problem of the airbag being easily damaged by insects and ants when the buffer device is not completely sealed. During the cleaning of the airbag surface, the rotation of the spoiler turbulences the airflow, accelerating the airflow rate and improving the heat dissipation efficiency under the battery pack body. This reduces the device temperature, avoids providing a suitable environment for insects and ants, and reduces their attraction, solving the problem of high temperatures attracting insects and ants to climb. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of some rigid protection devices and buffer devices of the present invention; Figure 3 This is a schematic diagram of the full cross-section of the present invention; Figure 4 For the present invention Figure 4 A magnified schematic diagram of the structure of region A; Figure 5 This is a schematic diagram of the structure below the chassis of the present invention; Figure 6 This is a schematic diagram of the structure of some of the buffer devices and auxiliary devices of the present invention; Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure of region B.
[0019] In the diagram: 1. Chassis; 2. Battery pack body; 31. Sliding groove; 32. Sliding rod; 33. Sliding block; 34. Buffer spring; 35. Hinge plate; 36. Impact plate; 41. Through groove; 42. Hollow plate; 43. Protective plate; 44. Limiting plate; 45. Hollow rod; 46. Support rod; 47. Air tank; 48. Sealing plate; 49. Through hole; 410. Air chamber; 411. Airbag; 51. Rotary ring; 52. Fixing rod; 53. Soft sponge; 54. Connecting rod; 55. Sphere; 56. Hinge joint; 57. Hinge rod; 58. Hinge ball; 59. Spoiler. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] Please see Figures 1-7 One embodiment of the present invention is: a new energy vehicle battery pack anti-collision device, including a chassis 1, a battery pack body 2 passing through the chassis 1 and slidably connected at the passage, and a rigid protective device is provided below the chassis 1 to replace the battery pack body 2 in receiving impacts.
[0022] The rigid protective device includes a sliding groove 31, a sliding rod 32, a sliding block 33, a buffer spring 34, a hinge plate 35, and a bearing plate 36. The sliding groove 31 is located at both ends of the chassis 1. The sliding rod 32 is fixedly connected to the inner wall of the sliding groove 31 and passes through the sliding block 33, with a slidable connection at the point of penetration. One end of the buffer spring 34 is fixedly connected to the side wall of the sliding block 33, and the other end of the buffer spring 34 is fixedly connected to the side wall of the sliding groove 31. The sliding block 33 slides and stretches the buffer spring 34. When the vehicle passes over an obstacle, the sliding block 33 is subjected to the spring force of the buffer spring 34. The force is used to reset the hinge plate 35, which is hinged to the bottom surface of the sliding block 33. When there is a protruding obstacle on the front or rear of the car, the obstacle first contacts the hinge plate 35, and the obstacle slides against the side wall of the hinge plate 35. The hinge plate 35 moves under the pushing force of the obstacle. The sliding groove 31, sliding rod 32, sliding block 33 and buffer spring 34 are all provided in two sets. The impact plate 36 is hinged at both ends to the ends of the two sets of hinge plates 35 away from the sliding block 33. Since the impact plate 36 is restricted to moving only in the vertical direction, the hinge point between the hinge plate 35 and the impact plate 36 can only move upwards. As the hinge plate 35 moves downwards, and since the end of the hinge plate 35 away from the impact plate 36 is hinged to the bottom end of the sliding block 33, the sliding block 33, restricted by the sliding rod 32, can only move horizontally. Therefore, the hinge point between the sliding block 33 and the hinge plate 35 can only move left and right. Thus, when the hinge plate 35 is pushed by an obstacle, it rotates, pushing the impact plate 36 to lift, protecting the battery pack body 2 and mitigating impact. When the hinge plate 35 rotates, it also pushes the sliding block 33 and the buffer spring 34 to slide away from the impact plate 36. When the impact plate 36 moves downwards to reset, it again... The rigid protective device protects the battery pack body 2. When the obstacle in front of or behind the car is low or soft, it works with the sliding groove 31, sliding rod 32, sliding block 33, buffer spring 34 and hinge plate 35 to lift the impact plate 36, so that the impact plate 36 directly protects the battery pack body 2 from below. Alternatively, the impact plate 36 and the hinge plate 35 can bend the obstacle by their own weight, so that the entire device can pass directly through the obstacle without affecting the battery pack body 2. This solves the problem that the anti-collision device of the device cannot flexibly change its height and the protection is relatively rigid. When there are high obstacles in front of or behind the car, the impact plate 36 replaces the battery pack body 2 to contact the obstacle, thereby avoiding the battery pack body 2 from being directly impacted by the obstacle. This solves the problem that even though the battery pack body 2 can slide up and down, the part in direct contact will still be subjected to a certain impact force.
[0023] In this embodiment, when the front or rear of the vehicle has a protruding obstruction, the obstruction first contacts the hinge plate 35. The obstruction slides against the side wall of the hinge plate 35, and the hinge plate 35 moves under the thrust of the obstruction. Since the impact plate 36 is restricted to vertical movement, the hinge point between the hinge plate 35 and the impact plate 36 can only move vertically. Simultaneously, because the end of the hinge plate 35 furthest from the impact plate 36 is hinged to the bottom end of the sliding block 33, the sliding block 33 is restricted by the sliding rod 32 and can only move horizontally. Therefore, the hinge point between the sliding block 33 and the hinge plate 35 can only move left-right. When the hinge plate 35 moves to the right, it rotates when it is pushed by the obstruction, which pushes the impact plate 36 to lift up and protect the battery pack body 2 from impact. When the hinge plate 35 rotates, it also pushes the sliding block 33 and the buffer spring 34 to slide away from the impact plate 36. The sliding block 33 stretches the buffer spring 34. When the car passes the obstruction, the sliding block 33 is reset by the restoring force of the buffer spring 34. The sliding block 33 drives the hinge plate 35 to rotate in the opposite direction. The hinge plate 35 rotates and the impact plate 36 moves downward to reset, protecting the battery pack body 2 again.
[0024] Please see Figures 1-7Based on the above embodiments, in another embodiment of the present invention, a buffer device is provided below the chassis 1 to buffer between the rigid protective device and the battery pack body 2. The buffer device includes a through groove 41, a hollow plate 42, a protective plate 43, a limiting plate 44, a hollow rod 45, a support rod 46, an air tank 47, a sealing plate 48, a through hole 49, an air inflator 410, and an airbag 411. The through groove 41 is opened at both ends of the chassis 1. The hollow plate 42 is fixedly connected to the front and rear sides of the impact plate 36. The protective plate 43 penetrates the hollow plate 42 and is slidably connected at the penetration point. The hollow plate 42 and the protective plate 43 protect the battery pack body 2 on the front and rear sides, preventing animals from quickly passing through from the side and damaging the battery pack body 2. Upon impact, when the hinge plate 35 is impacted by an obstacle, causing the impact plate 36 to move upward, the impact plate 36 also causes the hollow plate 42 to move upward. The hollow plate 42 moves upward into the insertion slot 41. The protective plate 43 penetrates the chassis 1 and is slidably connected at the penetration point. The side wall of the protective plate 43 is in contact with the inner wall of the slot 41. The limiting plate 44 is fixedly connected to the upper surface of the protective plate 43. The limiting plate 44 penetrates the chassis 1 and is slidably connected at the penetration point. When the hollow plate 42 moves to the limiting plate 44, it pushes the limiting plate 44 to slide upward. The upward sliding of the limiting plate 44 causes the protective plate 43 to move upward as well, causing the hollow plate 42 and the protective plate 43 to retract. The hollow rod 45 is fixedly connected to the upper surface of the impact plate 36. Hollow rod 45 is slidably connected through the chassis 1. When the bearing plate 36 moves upward, it also drives hollow rod 45 to slide upward. Support rod 46 is fixedly connected to the upper surface of chassis 1. Hollow rod 45 passes through support rod 46 and is slidably connected through the passage. Air tank 47 is fixedly connected to the upper end of support rod 46 and communicates with support rod 46. Sealing plate 48 is slidably connected to the inner wall of air tank 47. When hollow rod 45 slides to sealing plate 48, hollow rod 45 pushes sealing plate 48 to slide upward. Through hole 49 is opened on the surface of sealing plate 48. The center of hollow rod 45 fits with through hole 49. Sealing plate 48 slides upward, compressing the air in air tank 47. The compressed air in air tank 47... Hollow rod 45 enters through through hole 49. Air chamber 410 is formed on the inner wall of impact plate 36. Airbag 411 is fixedly connected to the upper surface of impact plate 36. Hollow rod 45 communicates with air chamber 410. Air in hollow rod 45 flows into air chamber 410. Air chamber 410 communicates with airbag 411. As the air in air chamber 410 increases, airbag 411 inflates, forming a buffer between battery pack body 2 and impact plate 36, reducing the impact of impact on battery pack body 2 when impacted. This buffer device also has protective components at the front and rear of battery pack body 2. When the rigid protective device protects battery pack body 2, it works with through slot 41 and limiting plate 44 to fold hollow plate 42 and protective plate 43.This provides more comprehensive protection for the battery pack body 2 through the hollow plate 42 and the protective plate 43, preventing the impact plate 36 from being affected by the front and rear protective components and thus solving the problem of the battery pack body 2 lacking front and rear protection and potentially being impacted by animals. When the impact plate 36 protects the battery pack body 2, the airbag 411 is inflated in conjunction with the hollow rod 45, support rod 46, air tank 47, sealing plate 48, through hole 49 and air chamber 410 to buffer the impact between the battery pack body 2 and the impact plate 36. As the impact plate 36 moves upward, the battery pack body 2 applies a downward elastic force to the impact plate 36, preventing the impact plate 36 from being hit by excessive force, which would cause the impact plate 36 to move upward too quickly and intermittently impact the battery pack body 2. This solves the problem that the impact plate 36 may be damaged by inertia.
[0025] An auxiliary device for maintaining the buffer device is installed above it. This auxiliary device includes a rotating ring 51, a fixed rod 52, a soft sponge 53, a connecting rod 54, a ball 55, a hinge joint 56, a hinge rod 57, a hinge ball 58, and a spoiler 59. A hollow rod 45 passes through the rotating ring 51 and is rotatably connected at the point of penetration. The fixed rod 52 is fixedly connected to the outer wall of the rotating ring 51. When the rotating ring 51 rotates, it drives the fixed rod 52 to rotate as well. The soft sponge 53 is fixedly connected to the bottom surface of the fixed rod 52. The rotation of the fixed rod 52 causes the soft sponge 53 to scrape the surface of the airbag 411, sweeping away any insects or ants that may have crawled onto the airbag 411. The connecting rod 54 is fixedly connected to the outer wall of the rotating ring 51, and the ball 55 is fixedly connected to the end of the connecting rod 54 away from the rotating ring 51. Rotation of the connecting rod 54 causes the rotating ring 51 to rotate as well. The inner wall of the hinge joint 56 is in contact with the outer wall of the ball 55. The hinge rod 57 is fixedly connected to the outer wall of the hinge joint 56. When the hinge rod 57 rotates, it causes the hinge joint 56 to slide along the outer wall of the ball 55. The hinge ball 58 is fixedly connected to the end of the hinge rod 57 away from the hinge joint 56. When the hinge ball 58 moves, it causes the hinge rod 57 to rotate along with the hinge plate 35. The side wall of the hinge plate 35 has a circular groove. The outer wall of 58 fits against the inner wall of the circular groove. When the hinge plate 35 rotates, it also drives the hinge ball 58 to move. As the hinge plate 35 gradually turns to the horizontal, the distance between the hinge ball 58 and the rotating ring 51 increases. The hinge ball 58 pulls the hinge rod 57 to move. The movement of the hinge rod 57 drives the hinge joint 56 to slide on the outer wall of the sphere 55. The hinge rod 57 simultaneously pulls the hinge joint 56 and the sphere 55 to move, causing the connecting rod 54 to rotate around the central axis of the rotating ring 51. The spoiler 59 is fixedly connected to the outer wall of the hinge rod 57. When the hinge rod 57 rotates, it also drives the spoiler 59 to swing. The 59 swinging motion turbulents the airflow below the battery pack body 2, accelerating the airflow speed and improving heat dissipation efficiency. When the rigid protective device moves, this auxiliary device, together with the rotating ring 51, fixing rod 52, soft sponge 53, connecting rod 54, ball 55, hinge joint 56, hinge rod 57 and hinge ball 58, cleans the surface of the airbag 411, driving away insects that may crawl onto the surface of the airbag 411, thereby preventing insects from biting the surface of the airbag 411, causing the airbag 411 to leak air and affecting the normal use of the buffer device. This solves the problem that the buffer device is not completely sealed and the airbag 411 is easily damaged by insects. When cleaning the surface of the airbag 411, the rotation of the spoiler 59 is used to turbulent the air and accelerate the air flow rate, thereby improving the air heat dissipation efficiency under the battery pack body 2, reducing the equipment temperature, avoiding providing a suitable environment for insects and ants, reducing the attraction to insects and ants, and solving the problem that high temperatures easily attract insects and ants to climb.
[0026] In this embodiment, the hollow plate 42 and the protective plate 43 protect the battery pack body 2 from impact when animals pass quickly from the side. When the hinge plate 35 is impacted by an obstacle, causing the impact plate 36 to move upward, the impact plate 36 also causes the hollow plate 42 to move upward. The hollow plate 42 moves upward into the insertion slot 41. When the hollow plate 42 moves to the limiting plate 44, it pushes the limiting plate 44 to slide upward. The movement causes the protective plate 43 to move upward, causing the hollow plate 42 and the protective plate 43 to retract. When the impact plate 36 moves upward, it also causes the hollow rod 45 to slide upward. When the hollow rod 45 slides to the sealing plate 48, the center of the hollow rod 45 is in contact with the through hole 49. At the same time, the hollow rod 45 pushes the sealing plate 48 to slide upward. The upward sliding of the sealing plate 48 compresses the air in the air storage box 47. The compressed air in the air storage box 47 enters the hollow rod 45 through the through hole 49 and then flows into the air pump. Inside cavity 410, the air volume increases, causing the airbag 411 to inflate and form a buffer between the battery pack body 2 and the impact plate 36, reducing the impact of the impact plate 36 on the battery pack body 2 when it is hit. When the car drives over an obstacle, the impact plate 36 moves downward, causing the hollow rod 45 to slide downward as well. The sealing plate 48 is no longer pushed by the hollow rod 45 and is instead affected by gravity, sliding downward along the inner wall of the air tank 47. At this time, the air in the airbag 411 flows into the hollow airbag 411 from the airbag 410. The rod 45 then returns to the gas storage tank 47 from the hollow rod 45, facilitating the next cushioning of the impact plate 36. When the impact plate 36 moves downward, it also drives the hollow plate 42 downward. The hollow plate 42 no longer exerts a pushing force on the limiting plate 44. At the same time, the limiting plate 44 is subjected to the combined gravity of the limiting plate 44 and the protective plate 43, and slides downward along the inner wall of the through groove 41 until it slides to the bottom of the through groove 41 and is limited. The protective plate 43 is inserted into the hollow plate 42 to continue to protect the front and rear sides of the battery pack body 2.
[0027] When the hinge plate 35 rotates, it also drives the hinge ball 58 to move. As the hinge ball 58 moves, it drives the hinge rod 57 to rotate along with the hinge plate 35. When the hinge rod 57 rotates, it drives the hinge joint 56 to slide on the outer wall of the sphere 55. As the hinge plate 35 gradually turns horizontal, the distance between the hinge ball 58 and the rotating ring 51 increases. The hinge ball 58 pulls the hinge rod 57 to move. The movement of the hinge rod 57 drives the hinge joint 56 to slide on the outer wall of the sphere 55. Simultaneously, the hinge rod 57 pulls the hinge joint 56... The movement of 6 and sphere 55 causes the connecting rod 54 to rotate around the central axis of the rotating ring 51. The rotation of the connecting rod 54 causes the rotating ring 51 to rotate as well. When the rotating ring 51 rotates, it causes the fixed rod 52 to rotate as well. The rotation of the fixed rod 52 causes the soft sponge 53 to scrape the surface of the airbag 411, sweeping away any insects or ants that may have crawled onto the airbag 411. When the hinge rod 57 rotates, it also causes the spoiler 59 to swing. The swing of the spoiler 59 turbulents the air below the battery pack body 2, accelerating the airflow speed and improving the heat dissipation efficiency.
[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A new energy vehicle battery pack anti-collision device, comprising a chassis (1), characterized in that: The chassis (1) has a battery pack body (2) running through it, and the running through it is slidably connected. A rigid protective device is provided below the chassis (1) to replace the battery pack body (2) in receiving impacts. A buffer device is provided below the chassis (1) to buffer between the rigid protective device and the battery pack body (2). The rigid protective device includes a sliding groove (31), a sliding rod (32), a sliding block (33), a buffer spring (34), a hinge plate (35), and a bearing plate (36). The sliding groove (31) is opened at both ends of the chassis (1). The sliding rod (32) is fixedly connected to the inner wall of the sliding groove (31). The sliding rod (32) passes through the sliding block (33) and is slidably connected at the point of penetration. One end of the buffer spring (34) is fixedly connected to the side wall of the sliding block (33).
2. The anti-collision device for a new energy vehicle battery pack according to claim 1, characterized in that: The other end of the buffer spring (34) is fixedly connected to the side wall of the sliding groove (31), the hinge plate (35) is hinged to the bottom surface of the sliding block (33), the sliding groove (31), the sliding rod (32), the sliding block (33) and the buffer spring (34) are all provided in two sets, and the impact plate (36) is hinged at both ends to the ends of the two sets of hinge plates (35) away from the sliding block (33).
3. The anti-collision device for a new energy vehicle battery pack according to claim 1, characterized in that: The buffer device includes a through groove (41), a hollow plate (42), a protective plate (43), a limiting plate (44), a hollow rod (45), a support rod (46), an air storage box (47), a sealing plate (48), a through hole (49), an air chamber (410), and an air bag (411). The through groove (41) is opened at both ends of the chassis (1), and the hollow plate (42) is fixedly connected to the front and rear sides of the impact plate (36).
4. The anti-collision device for a new energy vehicle battery pack according to claim 3, characterized in that: The protective plate (43) penetrates the hollow plate (42) and is slidably connected at the penetration point. The protective plate (43) penetrates the chassis (1) and is slidably connected at the penetration point. The side wall of the protective plate (43) is attached to the inner wall of the through groove (41). The limiting plate (44) is fixedly connected to the upper surface of the protective plate (43). The limiting plate (44) penetrates the chassis (1) and is slidably connected at the penetration point.
5. The anti-collision device for a new energy vehicle battery pack according to claim 4, characterized in that: The hollow rod (45) is fixedly connected to the upper surface of the impact plate (36). The hollow rod (45) passes through the chassis (1) and is slidably connected at the penetration point. The support rod (46) is fixedly connected to the upper surface of the chassis (1). The hollow rod (45) passes through the support rod (46) and is slidably connected at the penetration point. The gas storage box (47) is fixedly connected to the upper end of the support rod (46).
6. The anti-collision device for a new energy vehicle battery pack according to claim 5, characterized in that: The air storage box (47) is connected to the support rod (46), the sealing plate (48) is slidably connected to the inner wall of the air storage box (47), the through hole (49) is opened on the surface of the sealing plate (48), the air chamber (410) is opened on the inner wall of the impact plate (36), the air bag (411) is fixedly connected to the upper surface of the impact plate (36), the hollow rod (45) is connected to the air chamber (410), and the air chamber (410) is connected to the air bag (411).
7. The anti-collision device for a new energy vehicle battery pack according to claim 1, characterized in that: An auxiliary device for maintaining the buffer device is provided above the buffer device. The auxiliary device includes a rotating ring (51), a fixed rod (52), a soft sponge (53), a connecting rod (54), a ball (55), a hinge joint (56), a hinge rod (57), a hinge ball (58), and a spoiler (59). The hollow rod (45) passes through the rotating ring (51) and is rotatably connected at the point of penetration.
8. The anti-collision device for a new energy vehicle battery pack according to claim 7, characterized in that: The fixing rod (52) is fixedly connected to the outer wall of the rotating ring (51), the soft sponge (53) is fixedly connected to the bottom surface of the fixing rod (52), the connecting rod (54) is fixedly connected to the outer wall of the rotating ring (51), the ball (55) is fixedly connected to the end of the connecting rod (54) away from the rotating ring (51), and the inner wall of the hinge joint (56) is in contact with the outer wall of the ball (55).
9. The anti-collision device for a new energy vehicle battery pack according to claim 8, characterized in that: The hinge rod (57) is fixedly connected to the outer wall of the hinge joint (56), the hinge ball (58) is fixedly connected to the end of the hinge rod (57) away from the hinge joint (56), the side wall of the hinge plate (35) is provided with a circular groove, the outer wall of the hinge ball (58) is in contact with the inner wall of the circular groove, and the spoiler (59) is fixedly connected to the outer wall of the hinge rod (57).