Vehicle-mounted emergency power supply device of anti-collision buffer vehicle

Abstract

The invention discloses a vehicle-mounted emergency power supply device of an anti-collision buffer vehicle, and belongs to the technical field of electric energy storage emergency power supply, the vehicle-mounted emergency power supply device comprises a shell, the two sides of the shell are fixedly connected with mounting pieces, and the two ends in the shell are provided with mounting mechanisms. By arranging the arc-shaped guide plate and the arc-shaped pressing plate, the battery body can be guided to be positioned during installation, the battery body is prevented from being damaged by rigid collision, the linkage structure is arranged between the supporting frame and the arc-shaped guide plate, the arc-shaped guide plate and the arc-shaped pressing plate can be turned inwards while the battery body is placed in, on one hand, the cover plate can be conveniently installed, and on the other hand, the battery body is prevented from being damaged. And on the other hand, the curved surface structures of the arc-shaped guide plate and the arc-shaped pressing plate can reserve a certain ventilation and heat dissipation space for the upper part of the battery body, and the anti-collision box body can absorb the impact force of vehicle collision, reduce the risk of battery electrolyte leakage and realize zero interruption of power supply in emergency rescue under the high-vibration working condition (such as rear vehicle impact) of a road accident site.

Description

Technical Field

[0001] This invention belongs to the field of electrical energy storage and emergency power supply technology, and particularly relates to an on-board emergency power supply device for a collision buffer vehicle. Background Technology

[0002] Onboard emergency power supply units are core components of crash buffer vehicles, used to provide emergency power support for rescue equipment (such as lighting systems, warning devices, or hydraulic tools) in high-risk environments such as road accident scenes and construction areas. These units must meet stringent operating requirements: rapid deployment capability in high-vibration environments, seismic stability to avoid power outages, and adaptive heat dissipation performance to cope with sudden temperature rises.

[0003] Traditional vehicle battery power supply systems are complete systems that combine multiple battery cells (such as lithium batteries) into a battery pack through electrical connections and mechanical structures, and integrate them into a specific casing. They are one of the core components of the power system of new energy vehicles, ensuring that new energy vehicles can work safely and stably.

[0004] In the prior art, patent CN215377505U discloses a new energy battery pack, including at least two battery modules connected by an external copper busbar. Each battery module includes a shell formed by a side plate and an end plate, and a cell group located inside the shell. This cell group includes several cells arranged side by side in sequence, with adjacent cells connected by a copper busbar. The side plate further includes an aluminum substrate and an insulating layer and a thermally conductive silicone pad layer located on both sides of the aluminum substrate. The insulating layer in the side plate is bonded to the cell group, and the thermally conductive silicone pad layers of the side plates of adjacent battery modules are in contact. This new energy battery pack can quickly transfer the heat generated by the overcurrent of the cells and balance the heat between the cells and between the battery modules, thereby improving the charging and discharging efficiency and the service life of the battery pack.

[0005] The problem with the existing technology is that the battery module housing is formed by side plates and end plates, and the battery cells are directly placed inside the housing without any guiding structures such as arc-shaped guide plates, elastic supports or positioning grooves. During installation, the battery cells need to be manually aligned with the gap between the side plates and end plates. Due to the lack of visual or mechanical guidance, positioning deviations are prone to occur, resulting in hard friction or collision between the battery cell edge and the side plate, which can damage the battery and affect the stable power supply needs at the scene of a road accident. Summary of the Invention

[0006] To address the problems existing in the prior art, this invention provides an on-board emergency power supply device for a collision buffer vehicle. It has the advantages of guiding installation and positioning and avoiding battery damage. It solves the problem that existing battery pack structures are prone to positioning deviations during installation due to the lack of visualization or mechanical guidance, which can lead to hard friction or collision between the battery cell edge and the side plate, thereby damaging the battery and affecting the stable power supply needs at road accident scenes.

[0007] The present invention is implemented as follows: an on-board emergency power supply device for a collision buffer vehicle includes a housing, mounting plates are fixedly connected to both sides of the housing, and mounting mechanisms are provided at both ends inside the housing. Several sets of battery bodies are mounted on the mounting mechanisms, and the several sets of battery bodies are electrically connected to each other. A terminal post is provided at one end of the housing.

[0008] As a preferred embodiment of the present invention, the mounting mechanism includes a fixing plate, which is fixedly installed at both ends inside the outer casing, and an arc-shaped guide plate and a support frame are rotatably installed at the upper and lower ends of the fixing plate, respectively.

[0009] As a preferred embodiment of the present invention, an arc-shaped pressure plate is fixedly connected to the end of the arc-shaped guide plate away from the fixed plate, the arc-shaped pressure plate is pressed onto the battery body, the support frame is a frame structure, and anti-slip protrusions are provided at each intersection point.

[0010] In a preferred embodiment of the present invention, a first upper rotating shaft is fixedly connected to both ends of the arc-shaped guide plate. The first upper rotating shaft is rotatably mounted inside the upper sides of the fixed plate. A second upper rotating shaft is provided below the first upper rotating shaft and is rotatably mounted inside the fixed plate. A first upper I-beam and a second upper I-beam are respectively fixedly sleeved on the first upper rotating shaft and the second upper rotating shaft. An upper transmission belt is sleeved on the first upper I-beam and the second upper I-beam.

[0011] In a preferred embodiment of the present invention, a second lower rotating shaft is fixedly connected to both ends of the support frame. The second lower rotating shaft is rotatably installed inside the lower ends of the fixed plate. A first lower rotating shaft is provided above the second lower rotating shaft. The first lower rotating shaft is rotatably installed inside the fixed plate. A first lower I-beam and a second lower I-beam are respectively fixedly sleeved on the first lower rotating shaft and the second lower rotating shaft. A lower transmission belt is sleeved on the first lower I-beam and the second lower I-beam.

[0012] In a preferred embodiment of the present invention, an upper gear and a lower gear are respectively fixedly sleeved on the shafts of the second upper rotating shaft and the first lower rotating shaft. An upper rack and a lower rack are respectively meshed on one side of the upper gear and the lower gear. The upper rack and the lower rack are fixedly connected by a lifting rod.

[0013] In a preferred embodiment of the present invention, the upper rack, the lifting rod, and the lower rack are all slidably connected to the fixed plate, and the fixed plate has an installation groove, in which a limit rod is fixedly connected.

[0014] In a preferred embodiment of the present invention, a connecting block is fixedly connected to the lifting rod, a spring is fixedly connected to the upper surface of the connecting block, the upper end of the spring is fixedly connected to the inner wall of the mounting groove, and both the connecting block and the spring are sleeved on the limiting rod.

[0015] As a preferred embodiment of the present invention, the spring is made of carbon spring steel.

[0016] As a preferred embodiment of the present invention, the spring is a shape memory alloy spring.

[0017] A crash buffer vehicle includes a main body and an on-board emergency power supply device as described above. A secondary platform for supporting the outer shell is mounted on the main body, and a crash box located at the rear of the main body is also mounted on the secondary platform.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, by setting up an arc-shaped guide plate and an arc-shaped pressure plate, can guide the battery body to position during installation, avoiding damage to the battery body from hard collisions. The frame structure of the support frame and the anti-slip protrusions can prevent the battery body from directly contacting the inner wall of the bottom of the outer casing, leaving a certain amount of space to help the battery body dissipate heat later. The anti-slip protrusions can also increase friction to prevent the battery from sliding, thus achieving stable power supply in emergency rescue.

[0019] This invention, by setting a linkage structure between the support frame and the arc-shaped guide plate, enables the arc-shaped guide plate and the arc-shaped pressure plate to flip inward while the battery body is being placed. On the one hand, this facilitates the installation of the cover plate; on the other hand, the curved surface structure of the arc-shaped guide plate and the arc-shaped pressure plate can also reserve a certain amount of ventilation and heat dissipation space for the upper part of the battery body, thereby improving the heat dissipation of the battery pack structure.

[0020] In high-vibration conditions at road accident scenes (such as rear-end collisions), the impact shield can absorb the impact force of vehicle impacts, reduce the risk of battery electrolyte leakage, and achieve zero power interruption during emergency rescue. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the mounting mechanism portion of the present invention; Figure 6 This is a partial three-dimensional structural diagram of the installation mechanism of the present invention; Figure 7 This is a three-dimensional structural diagram of the connection between the lifting rod and the spring in this invention; Figure 8 This is a schematic diagram of the initial state of the arc-shaped guide plate of the present invention; Figure 9 This is a three-dimensional structural diagram of the installation mechanism of the present invention.

[0022] In the diagram: 1. Outer shell; 11. Mounting plate; 2. Mounting mechanism; 21. Arc-shaped guide plate; 22. Arc-shaped pressure plate; 23. Fixing plate; 231. Mounting groove; 232. Limiting rod; 24. Support frame; 25. Anti-slip protrusion; 26. First upper rotating shaft; 27. First upper I-beam shaft; 28. Upper transmission belt; 29. ​​Second upper rotating shaft; 210. Second upper I-beam shaft; 211. Upper gear; 212. Upper rack; 213. Lifting rod; 214. Lower rack; 215. Lower gear; 216. First lower rotating shaft; 217. First lower I-beam shaft; 218. Lower transmission belt; 219. Second lower rotating shaft; 220. Second lower I-beam shaft; 221. Connecting block; 222. Spring; 3. Battery body; 4. Terminal; 100. Main body; 200. Secondary platform; 300. Collision protection box. Detailed Implementation

[0023] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0024] The structure of the present invention will now be described in detail with reference to the accompanying drawings. Example

[0025] like Figures 1 to 9 As shown in the figure, an on-board emergency power supply device for a collision buffer vehicle provided by an embodiment of the present invention includes a housing 1, mounting plates 11 are fixedly connected to both sides of the housing 1, mounting mechanisms 2 are provided at both ends inside the housing 1, a plurality of battery bodies 3 are mounted on the mounting mechanisms 2, the plurality of battery bodies 3 are electrically connected to each other, and a terminal block 4 is provided at one end of the housing 1.

[0026] The outer casing 1 is connected to the vehicle body structure via mounting plate 11. The mounting mechanism 2 is located at both ends of the outer casing 1, which enables modular installation of the battery body 3, facilitating later maintenance and replacement. The battery body 3 forms a battery pack through electrical connection, and the terminal 4 serves as an external circuit interface to realize power output.

[0027] Furthermore, the installation mechanism 2 includes a fixing plate 23, which is fixedly installed at both ends inside the outer casing 1. An arc-shaped guide plate 21 and a support frame 24 are rotatably installed at the upper and lower ends of the fixing plate 23, respectively. An arc-shaped pressure plate 22 is fixedly connected to the end of the arc-shaped guide plate 21 away from the fixing plate 23. The arc-shaped pressure plate 22 is pressed onto the battery body 3. The support frame 24 is a frame structure, and anti-slip protrusions 25 are provided at each intersection point.

[0028] The combination of the arc-shaped guide plate 21 and the arc-shaped pressure plate 22 can guide the battery body 3 to position during installation, avoiding damage to the battery body 3 from hard collisions. The frame structure of the support frame 24 and the anti-slip protrusions 25 can prevent the battery body 3 from directly contacting the bottom inner wall of the outer casing 1, leaving a certain space to help the battery body 3 dissipate heat later. The anti-slip protrusions 25 can also increase friction and prevent the battery from sliding.

[0029] In the initial state, the arc-shaped guide plate 21 flips outward to form an open structure, and the support frame 24 tilts upward. When installing the battery body 3, the bottom of the battery body 3 first contacts the support frame 24, and then pushes the support frame 24 to rotate downward. The arc-shaped guide plate 21 and the arc-shaped pressure plate 22 are driven to rotate inward through the transmission structure until the arc-shaped pressure plate 22 presses on the upper end of the battery body 3. On the one hand, the arc-shaped guide plate 21 and the arc-shaped pressure plate 22 flip inward into the inside of the outer casing 1, which facilitates the installation of the cover plate. On the other hand, after the cover plate is installed, it can also press the arc-shaped pressure plate 22 to fix the battery body 3. Due to their specific arc-shaped structure, the arc-shaped pressure plate 22 and the arc-shaped guide plate 21 can also reserve a certain amount of ventilation and heat dissipation space for the upper part of the battery body 3.

[0030] Furthermore, both ends of the arc-shaped guide plate 21 are fixedly connected to a first upper rotating shaft 26. The first upper rotating shaft 26 is rotatably installed inside the upper two sides of the fixed plate 23. A second upper rotating shaft 29 is provided below the first upper rotating shaft 26. The second upper rotating shaft 29 is rotatably installed inside the fixed plate 23. A first upper I-beam 27 and a second upper I-beam 210 are respectively fixedly sleeved on the first upper rotating shaft 26 and the second upper I-beam 29. An upper transmission belt 28 is sleeved on the first upper I-beam 27 and the second upper I-beam 210. The first upper rotating shaft 26 and the second upper rotating shaft 29 are linked together through the upper transmission belt 28.

[0031] Furthermore, a second lower rotating shaft 219 is fixedly connected to both ends of the support frame 24. The second lower rotating shaft 219 is rotatably installed inside the lower ends of the fixed plate 23. A first lower rotating shaft 216 is provided above the second lower rotating shaft 219. The first lower rotating shaft 216 is rotatably installed inside the fixed plate 23. A first lower H-beam 217 and a second lower H-beam 220 are respectively fixedly sleeved on the first lower rotating shaft 216 and the second lower rotating shaft 219. A lower transmission belt 218 is sleeved on the first lower H-beam 217 and the second lower H-beam 220. The first lower rotating shaft 216 and the second lower rotating shaft 219 are linked together through the lower transmission belt 218.

[0032] Furthermore, an upper gear 211 and a lower gear 215 are fixedly sleeved on the shafts of the second upper rotating shaft 29 and the first lower rotating shaft 216, respectively. An upper rack 212 and a lower rack 214 are respectively meshed on one side of the upper gear 211 and the lower gear 215. The upper rack 212 and the lower rack 214 are fixedly connected by a lifting rod 213.

[0033] The battery body 3 presses down on the support frame 24, causing the first lower rotating shaft 216 and the second lower rotating shaft 219 to rotate, which in turn drives the lower gear 215 to rotate. The lower rack 214 drives the upper rack 212 to move upward, and the spring 222 is compressed. The upper gear 211 and the upper rack 212 have fewer teeth than the lower gear 215 and the lower rack 214. Under the same rack displacement, the upper rotating shaft rotates at a larger angle, which allows the arc-shaped guide plate 21 to rotate more than the support frame 24, ensuring that the pressure plate accurately presses the top of the battery and avoids interference with the cover sealing.

[0034] Furthermore, the upper rack 212, the lifting rod 213, and the lower rack 214 are all slidably connected to the fixed plate 23. The fixed plate 23 has an installation groove 231. A limit rod 232 is fixedly connected inside the installation groove 231. A connecting block 221 is fixedly connected to the lifting rod 213. A spring 222 is fixedly connected to the upper surface of the connecting block 221. The upper end of the spring 222 is fixedly connected to the inner wall of the top of the installation groove 231. The connecting block 221 and the spring 222 are both sleeved on the limit rod 232.

[0035] Multiple sets of spring 222 and connecting block 221 can be configured to provide a restoring force for lifting rod 213, ensuring that the arc-shaped guide plate 21 and support frame remain in their initial open state when the battery body 3 is not installed, facilitating battery installation. The spring 222 is made of carbon spring steel. Example

[0036] Spring 222 is a shape memory alloy (SMA) spring, which forms a thermal response system with the linkage mechanism of the support frame 24 and the arc-shaped guide plate 21. When the battery body 3 heats up due to charging and discharging (temperature ≥45℃), the elastic modulus of the SMA spring decreases, and an additional 1-3mm compression is generated under the weight of the battery. Heat dissipation is enhanced through the following transmission chain: the increase in temperature leads to an increase in the compression of the SMA spring, which leads to an increase in the upward movement of the lifting rod 213, which in turn leads to an increase in the rotation angle θ of the upper gear 211, which leads to an increase in the outward extension angle α of the arc-shaped guide plate 21 (an additional 5°-10° opening), and finally leads to an increase in the cross-sectional area of ​​the top vent by 20%-30%.

[0037] Specifically, a nickel-titanium alloy spring with a phase transition temperature of 45℃ (the elastic coefficient changes with temperature at a rate of 0.8 N / m / ℃) is selected.

[0038] It has the following effects: Dynamically enhanced top ventilation: A 5-8mm top heat dissipation gap is formed at high temperatures, combined with a 5-10mm overhead space at the bottom, creating a dynamically variable vertical ventilation channel; Precise control of thermal response threshold: Through the SMA spring phase change temperature design, the heat dissipation enhancement mode is automatically activated at 45℃±2℃.

[0039] Adaptive thermal management: No additional temperature control components are required. Passive heat dissipation regulation is achieved by utilizing the existing transmission mechanism, which reduces the temperature difference of the battery pack under high-temperature conditions.

[0040] Working principle of the invention: In the initial state, the support frame 24 tilts upward and the arc-shaped guide plate 21 flips outward to form an open guide structure. During installation, the battery body 3 is placed into the outer casing 1 from above, and the support frame 24 is pressed down. This drives the second lower rotating shaft 219, the first lower rotating shaft 216, and the lower gear 215 to rotate, causing the lower rack 214 to drive the lifting rod 213 and the upper rack 212 to move upward. This drives the upper gear 211 to rotate significantly, causing the arc-shaped guide plate 21 to flip inward synchronously. The arc-shaped pressure plate 22 gradually presses the top of the battery body 3. Finally, the cover plate is installed on the top of the outer casing 1 and pressed onto the arc-shaped pressure plate 22 to ensure the stability of the battery body 3.

[0041] In summary, this on-board emergency power supply device for a collision buffer vehicle, through the combination of the arc-shaped guide plate 21 and the arc-shaped pressure plate 22, can guide the battery body 3 to position during installation, avoiding damage to the battery body 3 from hard collisions. The frame structure of the support frame 24 and the anti-slip protrusions 25 can prevent the battery body 3 from directly contacting the inner wall of the outer casing 1, leaving a certain space to help the battery body 3 dissipate heat later. The anti-slip protrusions 25 can also increase friction and prevent the battery from sliding. By setting a linkage structure between the support frame 24 and the arc-shaped guide plate 21, the arc-shaped guide plate 21 and the arc-shaped pressure plate 22 can be flipped inward while the battery body 3 is inserted. On the one hand, this facilitates the installation of the cover plate. On the other hand, the curved surface structure of the arc-shaped guide plate 21 and the arc-shaped pressure plate 22 can also reserve a certain amount of ventilation and heat dissipation space for the upper part of the battery body 3, improve the heat dissipation of the battery pack structure, and ensure stable power supply in emergency scenarios.

[0042] This invention also provides a crash buffer vehicle, including a main vehicle body 100 and an on-board emergency power supply device for the crash buffer vehicle as described in any one of claims 1-9. A secondary platform 200 for supporting the outer shell 1 is mounted on the main vehicle body 100, and a crash box 300 located at the rear of the main vehicle body 100 is also mounted on the secondary platform 200. This crash buffer vehicle is achieved through a three-level collaborative design (power supply device → secondary platform → crash box): Upgraded safety protection: Dual buffer structure resists the risks of collisions and vibrations; Efficiency breakthrough: The linkage mechanism and modular interface significantly shorten deployment time; Leap in reliability: Adaptive cooling system copes with complex operating conditions.

[0043] In addition, the main body 100 uses an integrated new energy power battery as its main power source, and the emergency power supply device is mounted on top of the main body via a secondary platform 200; the crash box 300 is placed at the rear of the vehicle to form a collision buffer zone. Figure 1 The rear of the vehicle is filled with energy-absorbing material, which absorbs 80% of the impact energy during a collision, protecting the outer casing 1 of the power supply device and the internal battery body 3.

[0044] The main body is powered by 100 new energy power batteries to drive the vehicle. The on-board power supply device operates independently to automatically switch power supply when the main body battery fails and to provide emergency charging support for other accident vehicles (such as electric vehicles with low power).

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] 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. An on-board emergency power supply device for a collision avoidance buffer vehicle, comprising a housing (1), characterized in that: Mounting plates (11) are fixedly connected to both sides of the outer shell (1). Mounting mechanisms (2) are provided at both ends inside the outer shell (1). Several sets of battery bodies (3) are installed on the mounting mechanisms (2). The several sets of battery bodies (3) are electrically connected to each other. A terminal post (4) is provided at one end of the outer shell (1).

2. The on-board emergency power supply device for the anti-collision buffer vehicle as described in claim 1, characterized in that: The installation mechanism (2) includes a fixing plate (23), which is fixedly installed at both ends inside the outer shell (1). The upper and lower ends of the fixing plate (23) are respectively rotatably installed with an arc-shaped guide plate (21) and a support frame (24).

3. The on-board emergency power supply device for the anti-collision buffer vehicle as described in claim 2, characterized in that: The arc-shaped guide plate (21) is fixedly connected to an arc-shaped pressure plate (22) at one end away from the fixed plate (23). The arc-shaped pressure plate (22) is pressed onto the battery body (3). The support frame (24) is a frame structure, and anti-slip protrusions (25) are provided at each intersection.

4. The on-board emergency power supply device for the anti-collision buffer vehicle as described in claim 2, characterized in that: The arc-shaped guide plate (21) is fixedly connected to a first upper rotating shaft (26) at both ends. The first upper rotating shaft (26) is rotatably installed inside the upper two sides of the fixed plate (23). A second upper rotating shaft (29) is provided below the first upper rotating shaft (26). The second upper rotating shaft (29) is rotatably installed inside the fixed plate (23). A first upper I-beam (27) and a second upper I-beam (210) are respectively fixedly sleeved on the first upper rotating shaft (26) and the second upper rotating shaft (29). An upper transmission belt (28) is sleeved on the first upper I-beam (27) and the second upper I-beam (210).

5. The on-board emergency power supply device for the anti-collision buffer vehicle as described in claim 4, characterized in that: The support frame (24) is fixedly connected to a second lower rotating shaft (219) at both ends. The second lower rotating shaft (219) is rotatably installed inside the lower two sides of the fixed plate (23). A first lower rotating shaft (216) is provided above the second lower rotating shaft (219). The first lower rotating shaft (216) is rotatably installed inside the fixed plate (23). A first lower I-beam (217) and a second lower I-beam (220) are respectively fixedly sleeved on the first lower rotating shaft (216) and the second lower rotating shaft (219). A lower transmission belt (218) is sleeved on the first lower I-beam (217) and the second lower I-beam (220).

6. The on-board emergency power supply device for a collision buffer vehicle as described in claim 5, characterized in that: An upper gear (211) and a lower gear (215) are fixedly sleeved on the shafts of the second upper rotating shaft (29) and the first lower rotating shaft (216), respectively. An upper rack (212) and a lower rack (214) are respectively meshed on one side of the upper gear (211) and the lower gear (215). The upper rack (212) and the lower rack (214) are fixedly connected by a lifting rod (213).

7. The on-board emergency power supply device for a collision buffer vehicle as described in claim 6, characterized in that: The upper rack (212), the lifting rod (213) and the lower rack (214) are all slidably connected to the fixed plate (23) in the upper and lower parts. The fixed plate (23) has an installation groove (231) inside, and a limit rod (232) is fixedly connected inside the installation groove (231).

8. The on-board emergency power supply device for a collision buffer vehicle as described in claim 7, characterized in that: A connecting block (221) is fixedly connected to the lifting rod (213), and a spring (222) is fixedly connected to the upper surface of the connecting block (221). The upper end of the spring (222) is fixedly connected to the inner wall of the mounting groove (231). The connecting block (221) and the spring (222) are both sleeved on the limiting rod (232).

9. The on-board emergency power supply device for a collision buffer vehicle as described in claim 8, characterized in that: The spring (222) is made of carbon spring steel and the spring (222) is a shape memory alloy spring.

10. A collision buffer vehicle, characterized in that: The vehicle includes a main body (100) and an on-board emergency power supply device for a crash buffer vehicle as described in any one of claims 1-9. A secondary platform (200) for supporting the outer shell (1) is mounted on the main body (100), and a crash box (300) located at the rear of the main body (100) is also mounted on the secondary platform (200).

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