Battery pack device and electric vehicle for detaching from electric vehicle in collision scenario

Abstract

The application relates to the technical field of electric vehicle accessories, and provides a battery pack device for separating from an electric vehicle in a collision scene and an electric vehicle, which comprises a battery pack lower shell, two first convex columns are arranged on the front side of the battery pack lower shell, two second convex columns are arranged on the rear side of the battery pack lower shell, a rear side supporting assembly is arranged at the rear end of the battery pack lower shell, the rear side supporting assembly comprises an end plate, supporting sleeves are arranged at the two ends of the end plate, the second convex columns are in plug-in cooperation with the supporting sleeves, a first electric push rod is arranged on the front side of the end plate, a front side supporting assembly is arranged on the front side of the battery pack lower shell, the front side supporting assembly comprises a front side plate, a supporting box is arranged on the front side of the front side plate, a second electric push rod is arranged on the supporting box, a guide plate is arranged on the telescopic shaft of the second electric push rod, two rectangular rods are arranged on the guide plate, and the rectangular rods are inserted into the first convex columns. The application can separate the battery pack from the vehicle body when a collision occurs, and the safety performance is improved.

Description

Technical Field

[0001] This application relates to the field of electric vehicle component technology, and more specifically, to a battery pack device that detaches from the electric vehicle in a collision scenario and the electric vehicle. Background Technology

[0002] The battery pack is a crucial component of electric vehicles, primarily used to provide power. Its design and performance directly impact the vehicle's range, safety, and reliability. Battery technology forms the foundation of the battery pack. With technological advancements and increasing consumer demands for performance and environmental friendliness, lithium-ion batteries have gradually become mainstream. Lithium-ion batteries offer advantages such as high energy density, long lifespan, and environmental friendliness, providing strong support for the development of electric vehicles. The structural design of electric vehicles must consider the installation and layout of the battery pack to ensure the vehicle's mechanical strength, safety, and reliability. Simultaneously, vehicle engineering must also consider the electric vehicle's driving performance, comfort, and durability to meet consumer needs.

[0003] Patent CN112670648B discloses a battery pack and an electric vehicle. The battery pack includes a battery tray and a battery. The battery tray includes an annular frame with two opposing first side portions. The lower ends of the two first side portions are respectively provided with flanged portions extending towards each other. The battery is located above the flanged portions and connected to the upper surface of the flanged portions. According to this invention, by connecting the flanged portions of the two first side portions to the battery respectively, a separate mounting component between the battery and the frame is avoided, which simplifies the structure of the battery pack, reduces its weight, and thus helps to improve the energy density of the battery pack.

[0004] Patent CN113422138A discloses a battery pack and an electric vehicle. The battery pack includes a battery housing, battery modules, and a fire-resistant and heat-absorbing insulation layer. The battery modules and the fire-resistant and heat-absorbing insulation layer are located within the battery housing. The fire-resistant and heat-absorbing insulation layer is situated between the inner wall of the battery modules and the battery housing. The fire-resistant and heat-absorbing insulation layer includes a first fire-resistant layer, a phase change layer, and a second fire-resistant layer, with the phase change layer located between the first and second fire-resistant layers. This invention, through the fire-resistant and heat-absorbing insulation layer, allows for the dissipation of heat and a reduction in local temperature when a localized cell in the battery module experiences thermal runaway. Due to the extremely high temperature, the first fire-resistant layer transfers the heat to the phase change layer. The phase change layer absorbs a large amount of heat and rapidly transfers it throughout the entire phase change layer, thus dispersing the heat and lowering the local temperature. Furthermore, the first fire-resistant layer below the phase change layer effectively reduces heat diffusion to surrounding cells, preventing heat diffusion. The second fire-resistant layer effectively protects the top of the battery housing, preventing the battery pack from exploding.

[0005] While the aforementioned technical solutions have their advantages, the battery packs in these solutions are all directly fixed to the electric vehicle using bolts or screws. This prevents the battery pack from automatically detaching from the vehicle body during a collision. Since the battery pack primarily provides power, a collision could trigger a fire. The battery pack's fixation to the vehicle means that the fire could further ignite the vehicle, potentially causing a fire that endangers the lives of the driver and passengers. Therefore, we propose a battery pack detachment device and an electric vehicle that detach from the vehicle in a collision scenario. Summary of the Invention

[0006] The purpose of this application is to provide a battery pack device and an electric vehicle that can detach from the vehicle in a collision scenario, so as to solve the technical problem in the prior art that the battery pack cannot detach from the vehicle after a collision, which can easily cause the battery pack to catch fire and burn the car, endangering the safety of people.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0008] On one hand, this application provides a battery pack device for detaching from an electric vehicle in a collision scenario, including a lower battery pack shell, a battery pack cover fixedly installed on the top surface of the lower battery pack shell, two symmetrical first protrusions fixedly installed on the front side of the lower battery pack shell, two symmetrical second protrusions fixedly installed on the rear side of the lower battery pack shell, a rear support assembly provided at the rear end of the lower battery pack shell, the rear support assembly including an end plate, support sleeves fixedly installed at both ends of the end plate, the second protrusions and the support sleeves being inserted into each other, a first electric push rod for pushing the lower battery pack shell away fixedly installed on the front side of the end plate, a front support assembly provided at the front side of the lower battery pack shell, the front support assembly including a front side plate, a support box fixedly installed on the front side of the front side plate, a second electric push rod fixedly installed on the support box, a guide plate provided on the telescopic shaft of the second electric push rod, two symmetrical rectangular rods fixedly installed on the guide plate, the rectangular rods being inserted into the first protrusions for support operation.

[0009] In one embodiment, a plurality of heat sinks arranged linearly and at equal intervals are fixedly mounted on the upper surface of the battery pack cover, and the heat sinks are used for heat dissipation.

[0010] In one embodiment, the first protrusion has a rectangular groove that communicates with the outside on the front side. The rectangular rod is located in the rectangular groove and is inserted into the rectangular groove. The size of the rectangular rod is adapted to the size of the rectangular groove, so that the rectangular rod can be inserted into the first protrusion to support the lower shell of the battery pack.

[0011] In one embodiment, the support sleeve is provided with a through hole that communicates with the outside, and the second protrusion is located in the through hole and is inserted into the through hole to support the second protrusion.

[0012] In one embodiment, a rectangular plate is fixedly installed at the end of the telescopic shaft of the first electric push rod, and a pusher plate is fixedly installed on the front side of the rectangular plate. The pusher plate abuts against the rear side of the lower battery pack shell, so that the lower battery pack shell can be pushed forward by the pusher plate, so that the second protrusion can be disengaged from the through hole, thereby completing the disengagement operation of the lower battery pack shell.

[0013] In one embodiment, guide sleeves are fixedly installed at both ends of the front side plate. The guide sleeves have rectangular holes that communicate with the outside. The rectangular rod passes through the rectangular holes and is slidably connected to the rectangular holes, so as to facilitate the guiding operation of the movement of the rectangular rod by using the guide sleeves.

[0014] In one embodiment, the support box is provided with a sliding groove, and the guide plate is located in the sliding groove and slidably connected to the sliding groove, which facilitates the guiding operation of the guide plate and makes the guide plate move more stably and smoothly.

[0015] In one embodiment, a steel plate is fixedly installed at the end of the telescopic shaft of the second electric push rod, and the guide plate is fixedly installed on the side of the steel plate by a plurality of fastening bolts, which facilitates the fixed installation operation of the guide plate.

[0016] In one embodiment, a support frame is fixedly installed between both ends of the front side plate and both ends of the end plate. The support frame is used to fix the front side plate and the end plate. A frame plate is fixedly installed on the top surface of the front side plate, and a fixing plate is fixedly installed on the top surface of the end plate. The frame plate and the fixing plate are both fixedly installed on the frame of the external electric vehicle by multiple fastening bolts, which facilitates the fixing of the frame plate and the fixing plate and achieves the effect of fixing the whole.

[0017] On the other hand, this application also provides an electric vehicle, including the aforementioned battery pack device that detaches from the electric vehicle in a collision scenario, and a connecting component for mounting and connecting the battery pack device that detaches from the electric vehicle in a collision scenario.

[0018] The beneficial effects of the battery pack detachment device from the electric vehicle in a collision scenario provided in this application and the electric vehicle are at least as follows:

[0019] 1. By setting a first protruding post, a second protruding post, a rear support assembly, and a front support assembly, a rectangular rod can be inserted into the first protruding post, driving the second protruding post into the support sleeve, thereby fixing and supporting the lower shell of the battery pack. After a collision, as the second electric push rod drives the rectangular rod to retract, the first electric push rod drives the second protruding post to move outward. The rectangular rod and the support sleeve no longer support the first and second protruding posts, thus separating the lower shell of the battery pack from the electric vehicle, achieving the effect of detaching from the electric vehicle in a collision scenario.

[0020] 2. The rectangular holes and grooves facilitate the guiding operation of the guide plate and rectangular rod, making the rectangular rod move more stably and smoothly, without swaying or shaking.

[0021] 3. The pusher plate increases the contact area between the pusher plate and the lower casing of the battery pack, making the first electric pusher rod work and driving the pusher plate to move the lower casing of the battery pack more smoothly. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the exploded structure provided in an embodiment of this application;

[0025] Figure 3 Provided for the embodiments of this application Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the front support assembly provided in an embodiment of this application;

[0027] Figure 5 This is one of the exploded structural diagrams of the rear support assembly provided in the embodiments of this application;

[0028] Figure 6 This is the second exploded structural diagram of the rear support assembly provided in the embodiments of this application;

[0029] Figure 7 This is one of the exploded structural diagrams of the front support assembly provided in the embodiments of this application;

[0030] Figure 8 This is the second exploded structural diagram of the front support assembly provided in the embodiments of this application;

[0031] Figure 9 Provided for the embodiments of this application Figure 8 Enlarged view of point B in the middle;

[0032] Figure 10 This is a system module block diagram provided for an embodiment of this application.

[0033] The following are the labeling elements in the figure:

[0034] 1. Battery pack lower shell; 10. Battery pack upper cover; 11. Heat sink; 12. First protrusion; 121. Rectangular groove; 13. Second protrusion;

[0035] 2. Rear support assembly; 20. End plate; 21. Support sleeve; 211. Through hole; 22. Fixing plate; 23. First electric push rod; 231. Rectangular plate; 24. Push plate;

[0036] 3. Front support assembly; 30. Front side plate; 31. Guide sleeve; 311. Rectangular hole; 32. Support frame; 33. Support box; 331. Slide groove; 34. Frame plate; 35. Second electric push rod; 351. Steel plate; 36. Guide plate; 37. Rectangular rod;

[0037] 4. Collision sensor; 40. In-vehicle central control processor. Detailed Implementation

[0038] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0039] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0040] Example 1

[0041] Please see Figures 1-10 This embodiment provides a battery pack device that detaches from an electric vehicle in a collision scenario. It includes a lower battery pack shell 1, a battery pack cover 10 fixedly installed on the top surface of the lower battery pack shell 1, two symmetrical first protrusions 12 fixedly installed on the front side of the lower battery pack shell 1, two symmetrical second protrusions 13 fixedly installed on the rear side of the lower battery pack shell 1, and a rear support assembly 2 provided at the rear end of the lower battery pack shell 1. The rear support assembly 2 includes an end plate 20, and support sleeves 21 are fixedly installed at both ends of the end plate 20. The second protrusions 13 are inserted into the support sleeves 21. Specifically, the support sleeves 21 are provided with through holes 211 that communicate with the outside. The second protrusions 13 are located in the through holes 211 and are inserted into the through holes 211 to support the second protrusions 13.

[0042] Specifically, a first electric push rod 23 for pushing the lower battery pack shell 1 away is fixedly installed on the front side of the end plate 20. A front support assembly 3 is provided on the front side of the lower battery pack shell 1. The front support assembly 3 includes a front plate 30. A support box 33 is fixedly installed on the front side of the front plate 30. A second electric push rod 35 is fixedly installed on the support box 33. A guide plate 36 is provided on the telescopic shaft of the second electric push rod 35. Two mutually symmetrical rectangular rods 37 are fixedly installed on the side of the guide plate 36. The rectangular rods 37 are inserted into the first protrusion 12 for support operation, so that the second protrusion 13 and the first protrusion 12 can be supported by the support sleeve 21 and the rectangular rods 37. As the rectangular rods 37 retract and the first electric push rod 23 pushes the lower battery pack shell 1, the lower battery pack shell 1 can be detached.

[0043] In this embodiment, a rectangular groove 121 with its front side connected to the outside is provided in the first protrusion 12. A rectangular rod 37 is located in the rectangular groove 121 and is inserted into the rectangular groove 121. The size of the rectangular rod 37 is adapted to the size of the rectangular groove 121, so that the rectangular rod 37 can be inserted into the first protrusion 12 to support the lower shell 1 of the battery pack.

[0044] Specifically, guide sleeves 31 are fixedly installed at both ends of the front side plate 30. A rectangular hole 311 communicating with the outside is provided in the guide sleeve 31. The rectangular rod 37 passes through the rectangular hole 311 and is slidably connected to the rectangular hole 311, so as to facilitate the guiding operation of the movement of the rectangular rod 37 by using the guide sleeve 31.

[0045] Furthermore, a steel plate 351 is fixedly installed at the end of the telescopic shaft of the second electric push rod 35, and a guide plate 36 is fixedly installed on the side of the steel plate 351 by multiple fastening bolts, which facilitates the fixed installation operation of the guide plate 36.

[0046] Example 2

[0047] Please see Figures 1-10 This embodiment provides a battery pack device that detaches from an electric vehicle in a collision scenario. It includes a lower battery pack shell 1, a battery pack cover 10 fixedly installed on the top surface of the lower battery pack shell 1, two symmetrical first protrusions 12 fixedly installed on the front side of the lower battery pack shell 1, two symmetrical second protrusions 13 fixedly installed on the rear side of the lower battery pack shell 1, and a rear support assembly 2 provided at the rear end of the lower battery pack shell 1. The rear support assembly 2 includes an end plate 20, and support sleeves 21 are fixedly installed at both ends of the end plate 20. The second protrusions 13 are inserted into the support sleeves 21. Specifically, the support sleeves 21 are provided with through holes 211 that communicate with the outside. The second protrusions 13 are located in the through holes 211 and are inserted into the through holes 211 to support the second protrusions 13.

[0048] Specifically, a first electric push rod 23 for pushing the lower battery pack shell 1 away is fixedly installed on the front side of the end plate 20. A front support assembly 3 is provided on the front side of the lower battery pack shell 1. The front support assembly 3 includes a front plate 30. A support box 33 is fixedly installed on the front side of the front plate 30. A second electric push rod 35 is fixedly installed on the support box 33. A guide plate 36 is provided on the telescopic shaft of the second electric push rod 35. Two mutually symmetrical rectangular rods 37 are fixedly installed on the side of the guide plate 36. The rectangular rods 37 are inserted into the first protrusion 12 for support operation, so that the second protrusion 13 and the first protrusion 12 can be supported by the support sleeve 21 and the rectangular rods 37. As the rectangular rods 37 retract and the first electric push rod 23 pushes the lower battery pack shell 1, the lower battery pack shell 1 can be detached.

[0049] In this embodiment, a rectangular groove 121 with its front side connected to the outside is provided in the first protrusion 12. A rectangular rod 37 is located in the rectangular groove 121 and is inserted into the rectangular groove 121. The size of the rectangular rod 37 is adapted to the size of the rectangular groove 121, so that the rectangular rod 37 can be inserted into the first protrusion 12 to support the lower shell 1 of the battery pack.

[0050] Specifically, guide sleeves 31 are fixedly installed at both ends of the front side plate 30. A rectangular hole 311 communicating with the outside is provided in the guide sleeve 31. The rectangular rod 37 passes through the rectangular hole 311 and is slidably connected to the rectangular hole 311, so as to facilitate the guiding operation of the movement of the rectangular rod 37 by using the guide sleeve 31.

[0051] Furthermore, a steel plate 351 is fixedly installed at the end of the telescopic shaft of the second electric push rod 35, and a guide plate 36 is fixedly installed on the side of the steel plate 351 by multiple fastening bolts, which facilitates the fixed installation operation of the guide plate 36.

[0052] Furthermore, a plurality of heat sinks 11 arranged linearly and at equal intervals are fixedly installed on the upper surface of the battery pack cover 10. The heat sinks 11 are used for heat dissipation.

[0053] In addition, there are 20 to 30 heat sinks 11, and the distance between two adjacent heat sinks 11 is 2 to 3.5 cm. The heat sinks 11 pass through the battery pack cover 10, and the distance between the bottom end of the heat sink 11 and the top wall of the battery pack cover 10 is 0.3 to 0.5 cm, so as to dissipate the heat inside the lower shell 1 of the battery pack in a timely manner.

[0054] Example 3

[0055] Please see Figures 1-10 This embodiment provides a battery pack device that detaches from an electric vehicle in a collision scenario. It includes a lower battery pack shell 1, a battery pack cover 10 fixedly installed on the top surface of the lower battery pack shell 1, two symmetrical first protrusions 12 fixedly installed on the front side of the lower battery pack shell 1, two symmetrical second protrusions 13 fixedly installed on the rear side of the lower battery pack shell 1, and a rear support assembly 2 provided at the rear end of the lower battery pack shell 1. The rear support assembly 2 includes an end plate 20, and support sleeves 21 are fixedly installed at both ends of the end plate 20. The second protrusions 13 are inserted into the support sleeves 21. Specifically, the support sleeves 21 are provided with through holes 211 that communicate with the outside. The second protrusions 13 are located in the through holes 211 and are inserted into the through holes 211 to support the second protrusions 13.

[0056] Specifically, a first electric push rod 23 for pushing the lower battery pack shell 1 away is fixedly installed on the front side of the end plate 20. A front support assembly 3 is provided on the front side of the lower battery pack shell 1. The front support assembly 3 includes a front plate 30. A support box 33 is fixedly installed on the front side of the front plate 30. A second electric push rod 35 is fixedly installed on the support box 33. A guide plate 36 is provided on the telescopic shaft of the second electric push rod 35. Two mutually symmetrical rectangular rods 37 are fixedly installed on the side of the guide plate 36. The rectangular rods 37 are inserted into the first protrusion 12 for support operation, so that the second protrusion 13 and the first protrusion 12 can be supported by the support sleeve 21 and the rectangular rods 37. As the rectangular rods 37 retract and the first electric push rod 23 pushes the lower battery pack shell 1, the lower battery pack shell 1 can be detached.

[0057] In this embodiment, a rectangular groove 121 with its front side connected to the outside is provided in the first protrusion 12. A rectangular rod 37 is located in the rectangular groove 121 and is inserted into the rectangular groove 121. The size of the rectangular rod 37 is adapted to the size of the rectangular groove 121, so that the rectangular rod 37 can be inserted into the first protrusion 12 to support the lower shell 1 of the battery pack.

[0058] Specifically, guide sleeves 31 are fixedly installed at both ends of the front side plate 30. A rectangular hole 311 communicating with the outside is provided in the guide sleeve 31. The rectangular rod 37 passes through the rectangular hole 311 and is slidably connected to the rectangular hole 311, so as to facilitate the guiding operation of the movement of the rectangular rod 37 by using the guide sleeve 31.

[0059] Furthermore, a steel plate 351 is fixedly installed at the end of the telescopic shaft of the second electric push rod 35, and a guide plate 36 is fixedly installed on the side of the steel plate 351 by multiple fastening bolts, which facilitates the fixed installation operation of the guide plate 36.

[0060] Furthermore, a plurality of heat sinks 11 arranged linearly and at equal intervals are fixedly installed on the upper surface of the battery pack cover 10. The heat sinks 11 are used for heat dissipation.

[0061] In addition, there are 20 to 30 heat sinks 11, and the distance between two adjacent heat sinks 11 is 2 to 3.5 cm. The heat sinks 11 pass through the battery pack cover 10, and the distance between the bottom end of the heat sink 11 and the top wall of the battery pack cover 10 is 0.3 to 0.5 cm, so as to dissipate the heat inside the lower shell 1 of the battery pack in a timely manner.

[0062] In this embodiment, a rectangular plate 231 is fixedly installed at the end of the telescopic shaft of the first electric push rod 23. A pusher plate 24 is fixedly installed on the front side of the rectangular plate 231. The pusher plate 24 abuts against the rear side of the lower battery pack shell 1, which facilitates the use of the pusher plate 24 to push the lower battery pack shell 1 forward, so that the second protrusion 13 disengages from the through hole 211, completing the disengagement operation of the lower battery pack shell 1. The height of the pusher plate 24 is equal to the height of the lower battery pack shell 1, and the length of the pusher plate 24 is equal to the general length of the lower battery pack shell 1, which helps to increase the contact area between the pusher plate 24 and the lower battery pack shell 1, making it easier for the pusher plate 24 to push the lower battery pack shell 1 to move and making it convenient to use.

[0063] Example 4

[0064] Please see Figures 1-10 This embodiment provides a battery pack device that detaches from an electric vehicle in a collision scenario. It includes a lower battery pack shell 1, a battery pack cover 10 fixedly installed on the top surface of the lower battery pack shell 1, two symmetrical first protrusions 12 fixedly installed on the front side of the lower battery pack shell 1, two symmetrical second protrusions 13 fixedly installed on the rear side of the lower battery pack shell 1, and a rear support assembly 2 provided at the rear end of the lower battery pack shell 1. The rear support assembly 2 includes an end plate 20, and support sleeves 21 are fixedly installed at both ends of the end plate 20. The second protrusions 13 are inserted into the support sleeves 21. Specifically, the support sleeves 21 are provided with through holes 211 that communicate with the outside. The second protrusions 13 are located in the through holes 211 and are inserted into the through holes 211 to support the second protrusions 13.

[0065] Specifically, a first electric push rod 23 for pushing the lower battery pack shell 1 away is fixedly installed on the front side of the end plate 20. A front support assembly 3 is provided on the front side of the lower battery pack shell 1. The front support assembly 3 includes a front plate 30. A support box 33 is fixedly installed on the front side of the front plate 30. A second electric push rod 35 is fixedly installed on the support box 33. A guide plate 36 is provided on the telescopic shaft of the second electric push rod 35. Two mutually symmetrical rectangular rods 37 are fixedly installed on the side of the guide plate 36. The rectangular rods 37 are inserted into the first protrusion 12 for support operation, so that the second protrusion 13 and the first protrusion 12 can be supported by the support sleeve 21 and the rectangular rods 37. As the rectangular rods 37 retract and the first electric push rod 23 pushes the lower battery pack shell 1, the lower battery pack shell 1 can be detached.

[0066] In this embodiment, a rectangular groove 121 with its front side connected to the outside is provided in the first protrusion 12. A rectangular rod 37 is located in the rectangular groove 121 and is inserted into the rectangular groove 121. The size of the rectangular rod 37 is adapted to the size of the rectangular groove 121, so that the rectangular rod 37 can be inserted into the first protrusion 12 to support the lower shell 1 of the battery pack.

[0067] Specifically, guide sleeves 31 are fixedly installed at both ends of the front side plate 30. A rectangular hole 311 communicating with the outside is provided in the guide sleeve 31. The rectangular rod 37 passes through the rectangular hole 311 and is slidably connected to the rectangular hole 311, so as to facilitate the guiding operation of the movement of the rectangular rod 37 by using the guide sleeve 31.

[0068] Furthermore, a steel plate 351 is fixedly installed at the end of the telescopic shaft of the second electric push rod 35, and a guide plate 36 is fixedly installed on the side of the steel plate 351 by multiple fastening bolts, which facilitates the fixed installation operation of the guide plate 36.

[0069] Furthermore, a plurality of heat sinks 11 arranged linearly and at equal intervals are fixedly installed on the upper surface of the battery pack cover 10. The heat sinks 11 are used for heat dissipation.

[0070] In addition, there are 20 to 30 heat sinks 11, and the distance between two adjacent heat sinks 11 is 2 to 3.5 cm. The heat sinks 11 pass through the battery pack cover 10, and the distance between the bottom end of the heat sink 11 and the top wall of the battery pack cover 10 is 0.3 to 0.5 cm, so as to dissipate the heat inside the lower shell 1 of the battery pack in a timely manner.

[0071] In this embodiment, a rectangular plate 231 is fixedly installed at the end of the telescopic shaft of the first electric push rod 23. A pusher plate 24 is fixedly installed on the front side of the rectangular plate 231. The pusher plate 24 abuts against the rear side of the lower battery pack shell 1, which facilitates the use of the pusher plate 24 to push the lower battery pack shell 1 forward, so that the second protrusion 13 disengages from the through hole 211, completing the disengagement operation of the lower battery pack shell 1. The height of the pusher plate 24 is equal to the height of the lower battery pack shell 1, and the length of the pusher plate 24 is equal to the general length of the lower battery pack shell 1, which helps to increase the contact area between the pusher plate 24 and the lower battery pack shell 1, making it easier for the pusher plate 24 to push the lower battery pack shell 1 to move and making it convenient to use.

[0072] It is worth noting that the support box 33 is provided with a sliding groove 331. Both the left and right sides of the sliding groove 331 are connected to the outside. The guide plate 36 is located in the sliding groove 331 and is slidably connected to the sliding groove 331, which facilitates the guiding operation of the guide plate 36 and makes the guide plate 36 more stable and smooth when moving.

[0073] It is worth noting that the dimensions of the guide plate 36 are matched with the dimensions of the slide groove 331, which enables the guide plate 36 to have a better guiding effect. In addition, it also ensures that the guide plate 36 moves more stably and smoothly.

[0074] Example 5

[0075] Please see Figures 1-10This embodiment provides a battery pack device that detaches from an electric vehicle in a collision scenario. It includes a lower battery pack shell 1, a battery pack cover 10 fixedly installed on the top surface of the lower battery pack shell 1, two symmetrical first protrusions 12 fixedly installed on the front side of the lower battery pack shell 1, two symmetrical second protrusions 13 fixedly installed on the rear side of the lower battery pack shell 1, and a rear support assembly 2 provided at the rear end of the lower battery pack shell 1. The rear support assembly 2 includes an end plate 20, and support sleeves 21 are fixedly installed at both ends of the end plate 20. The second protrusions 13 are inserted into the support sleeves 21. Specifically, the support sleeves 21 are provided with through holes 211 that communicate with the outside. The second protrusions 13 are located in the through holes 211 and are inserted into the through holes 211 to support the second protrusions 13.

[0076] Specifically, a first electric push rod 23 for pushing the lower battery pack shell 1 away is fixedly installed on the front side of the end plate 20. A front support assembly 3 is provided on the front side of the lower battery pack shell 1. The front support assembly 3 includes a front plate 30. A support box 33 is fixedly installed on the front side of the front plate 30. A second electric push rod 35 is fixedly installed on the support box 33. A guide plate 36 is provided on the telescopic shaft of the second electric push rod 35. Two mutually symmetrical rectangular rods 37 are fixedly installed on the side of the guide plate 36. The rectangular rods 37 are inserted into the first protrusion 12 for support operation, so that the second protrusion 13 and the first protrusion 12 can be supported by the support sleeve 21 and the rectangular rods 37. As the rectangular rods 37 retract and the first electric push rod 23 pushes the lower battery pack shell 1, the lower battery pack shell 1 can be detached.

[0077] In this embodiment, a rectangular groove 121 with its front side connected to the outside is provided in the first protrusion 12. A rectangular rod 37 is located in the rectangular groove 121 and is inserted into the rectangular groove 121. The size of the rectangular rod 37 is adapted to the size of the rectangular groove 121, so that the rectangular rod 37 can be inserted into the first protrusion 12 to support the lower shell 1 of the battery pack.

[0078] Specifically, guide sleeves 31 are fixedly installed at both ends of the front side plate 30. A rectangular hole 311 communicating with the outside is provided in the guide sleeve 31. The rectangular rod 37 passes through the rectangular hole 311 and is slidably connected to the rectangular hole 311, so as to facilitate the guiding operation of the movement of the rectangular rod 37 by using the guide sleeve 31.

[0079] Furthermore, a steel plate 351 is fixedly installed at the end of the telescopic shaft of the second electric push rod 35, and a guide plate 36 is fixedly installed on the side of the steel plate 351 by multiple fastening bolts, which facilitates the fixed installation operation of the guide plate 36.

[0080] Furthermore, a plurality of heat sinks 11 arranged linearly and at equal intervals are fixedly installed on the upper surface of the battery pack cover 10. The heat sinks 11 are used for heat dissipation.

[0081] In addition, there are 20 to 30 heat sinks 11, and the distance between two adjacent heat sinks 11 is 2 to 3.5 cm. The heat sinks 11 pass through the battery pack cover 10, and the distance between the bottom end of the heat sink 11 and the top wall of the battery pack cover 10 is 0.3 to 0.5 cm, so as to dissipate the heat inside the lower shell 1 of the battery pack in a timely manner.

[0082] In this embodiment, a rectangular plate 231 is fixedly installed at the end of the telescopic shaft of the first electric push rod 23. A pusher plate 24 is fixedly installed on the front side of the rectangular plate 231. The pusher plate 24 abuts against the rear side of the lower battery pack shell 1, which facilitates the use of the pusher plate 24 to push the lower battery pack shell 1 forward, so that the second protrusion 13 disengages from the through hole 211, completing the disengagement operation of the lower battery pack shell 1. The height of the pusher plate 24 is equal to the height of the lower battery pack shell 1, and the length of the pusher plate 24 is equal to the general length of the lower battery pack shell 1, which helps to increase the contact area between the pusher plate 24 and the lower battery pack shell 1, making it easier for the pusher plate 24 to push the lower battery pack shell 1 to move and making it convenient to use.

[0083] It is worth noting that the support box 33 is provided with a sliding groove 331. Both the left and right sides of the sliding groove 331 are connected to the outside. The guide plate 36 is located in the sliding groove 331 and is slidably connected to the sliding groove 331, which facilitates the guiding operation of the guide plate 36 and makes the guide plate 36 more stable and smooth when moving.

[0084] It is worth noting that the dimensions of the guide plate 36 are matched with the dimensions of the slide groove 331, which enables the guide plate 36 to have a good guiding effect. In addition, it also ensures that the guide plate 36 moves more stably and smoothly.

[0085] In this embodiment, support frames 32 are fixedly installed between the two ends of the front side plate 30 and the two ends of the end plate 20. The support frames 32 are used to fix the front side plate 30 and the end plate 20. A frame plate 34 is fixedly installed on the top surface of the front side plate 30, and a fixing plate 22 is fixedly installed on the top surface of the end plate 20. The frame plate 34 and the fixing plate 22 are both fixedly installed on the frame of the external electric vehicle by multiple fastening bolts, which facilitates the fixing of the frame plate 34 and the fixing plate 22, achieves the effect of fixing the whole, and facilitates the installation and fixing operation.

[0086] It is worth noting that when the first electric push rod 23 is working, the telescopic shaft on it extends and drives the pusher plate 24 to push the lower shell 1 of the battery pack forward until the second protrusion 13 disengages from the through hole 211. At this point, the distance between the first protrusion 12 and the end face of the guide sleeve 31 is greater than 5cm. As the rectangular rod 37 continues to move backward, when the end of the rectangular rod 37 is completely retracted into the guide sleeve 31, the rectangular rod 37 no longer supports the first protrusion 12. This results in both the first protrusion 12 and the second protrusion 13 lacking support, which facilitates the normal detachment and separation of the lower shell 1 of the battery pack.

[0087] Finally, it should be noted that the first electric push rod 23 and the second electric push rod 35, etc., of this application are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the adapted controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this application. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0088] This embodiment also provides an electric vehicle, including the aforementioned battery pack device that detaches from the electric vehicle in a collision scenario, and a connecting component for mounting and connecting the battery pack device that detaches from the electric vehicle in a collision scenario.

[0089] In this embodiment, a collision sensor 4 is installed on the front bumper of the electric vehicle, and an on-board central control processor 40 is installed on the center console of the electric vehicle. The collision sensor 4 is connected to the on-board central control processor 40. The collision sensor 4 is used to detect whether a collision has occurred. When no collision has occurred, the on-board central control processor 40 does not take any action. When the collision sensor 4 detects that a collision has occurred, the collision sensor 4 sends the detected data to the on-board central control processor 40. The on-board central control processor 40 processes and analyzes the received data and controls the first electric push rod 23 and the second electric push rod 3. 5. Make corresponding actions. The collision sensor 4, vehicle central control processor 40, first electric push rod 23 and second electric push rod 35 are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and adapted controllers and power supplies, are connected by wires. The specific connection method should refer to the working principle in this application. The electrical connection between each electrical component is completed in the order of operation. The detailed connection method is all known technology in the art.

[0090] In this application, the battery pack device that detaches from the electric vehicle in a collision scenario and the electric vehicle are used by fixing the frame plate 34 and the fixing plate 22 to the electric vehicle frame with fastening screws. Then, the lower battery pack shell 1 is placed in the support frame 32. First, the second protrusion 13 is inserted into the through hole 211. Then, the second electric push rod 35 is activated and made to work. When the second electric push rod 35 works, the telescopic shaft on it extends and drives the guide plate 36 and the rectangular rod 37 to move forward, so that the position of the rectangular groove 121 corresponds to the position of the rectangular rod 37. At this time, the rectangular rod 37 will be inserted into the rectangular groove 121 and pressed against the groove wall of the rectangular groove 121, so that the side of the lower battery pack shell 1 is pressed against the side of the support sleeve 21, thus completing the installation operation.

[0091] Upon collision, the first electric push rod 23 and the second electric push rod 35 are activated and put into operation. The second electric push rod 35 operates, and its telescopic shaft shortens, causing the rectangular rod 37 to retract backward until its end is completely housed within the guide sleeve 31. At this point, the rectangular rod 37 no longer supports the first protrusion 12. Simultaneously, the first electric push rod 23 operates, and its telescopic shaft extends, causing the pusher plate 24 to move forward. The pusher plate 24 pushes the lower battery pack shell 1 forward until the second protrusion 13 disengages from the through hole 211. At this point, both the first protrusion 12 and the second protrusion 13 lack support, and the lower battery pack shell 1 automatically detaches, achieving separation from the vehicle.

[0092] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery pack device that detaches from an electric vehicle in a collision scenario, characterized in that, The battery pack includes a lower housing (1), on which a top cover (10) is fixedly installed. Two symmetrical first protrusions (12) are fixedly installed on the front side of the lower housing (1), and two symmetrical second protrusions (13) are fixedly installed on the rear side of the lower housing (1). A rear support assembly (2) is provided at the rear end of the lower housing (1). The rear support assembly (2) includes an end plate (20), with support sleeves (21) fixedly installed at both ends of the end plate (20). The second protrusions (13) are inserted into the support sleeves (21). A first electric push rod (23) for pushing away the lower shell (1) of the battery pack is fixedly installed on the front side. A front support assembly (3) is provided on the front side of the lower shell (1). The front support assembly (3) includes a front side plate (30). A support box (33) is fixedly installed on the front side of the front side plate (30). A second electric push rod (35) is fixedly installed on the support box (33). A guide plate (36) is provided on the telescopic shaft of the second electric push rod (35). Two mutually symmetrical rectangular rods (37) are fixedly installed on the guide plate (36). The rectangular rods (37) are inserted into the first protrusion (12) for support operation.

2. The battery pack device for detaching from an electric vehicle in a collision scenario according to claim 1, characterized in that, Multiple heat sinks (11) arranged linearly and at equal intervals are fixedly installed on the upper surface of the battery pack cover (10). The heat sinks (11) are used for heat dissipation.

3. The battery pack device for detaching from an electric vehicle in a collision scenario according to claim 1, characterized in that, The first protruding post (12) is provided with a rectangular groove (121) that is connected to the outside on the front side. The rectangular rod (37) is located in the rectangular groove (121) and is inserted into the rectangular groove (121). The size of the rectangular rod (37) is adapted to the size of the rectangular groove (121).

4. The battery pack device for detaching from an electric vehicle in a collision scenario according to claim 1, characterized in that, The support sleeve (21) is provided with a through hole (211) that communicates with the outside. The second protrusion (13) is located in the through hole (211) and is inserted into the through hole (211) to support the second protrusion (13).

5. The battery pack device for detaching from an electric vehicle in a collision scenario according to claim 1, characterized in that, A rectangular plate (231) is fixedly installed at the end of the telescopic shaft of the first electric push rod (23). A pusher plate (24) is fixedly installed on the front side of the rectangular plate (231), and the pusher plate (24) abuts against the rear side of the lower shell (1) of the battery pack.

6. The battery pack device for detaching from an electric vehicle in a collision scenario according to claim 1, characterized in that, Guide sleeves (31) are fixedly installed at both ends of the front side plate (30). A rectangular hole (311) communicating with the outside is provided in the guide sleeve (31). The rectangular rod (37) passes through the rectangular hole (311) and is slidably connected to the rectangular hole (311).

7. The battery pack device for detaching from an electric vehicle in a collision scenario according to claim 1, characterized in that, The support box (33) is provided with a sliding groove (331), and the guide plate (36) is located in the sliding groove (331) and is slidably connected to the sliding groove (331).

8. The battery pack device for detaching from an electric vehicle in a collision scenario according to claim 1, characterized in that, A steel plate (351) is fixedly installed at the end of the telescopic shaft of the second electric push rod (35), and the guide plate (36) is fixedly installed on the side of the steel plate (351) by a plurality of fastening bolts.

9. The battery pack device for detaching from an electric vehicle in a collision scenario according to claim 1, characterized in that, Support frames (32) are fixedly installed between the two ends of the front side plate (30) and the two ends of the end plate (20). The support frames (32) are used to fix the front side plate (30) and the end plate (20). A frame plate (34) is fixedly installed on the top surface of the front side plate (30), and a fixing plate (22) is fixedly installed on the top surface of the end plate (20). The frame plate (34) and the fixing plate (22) are both fixedly installed on the frame of the external electric vehicle by multiple fastening bolts.

10. An electric vehicle, characterized in that: Includes the battery pack device that detaches from the electric vehicle in a collision scenario as described in any one of claims 1-9, and a connecting component for mounting and connecting the battery pack device that detaches from the electric vehicle in a collision scenario.

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