Battery and frame connecting structure and vehicle
By setting up a blasting device in the connection structure between the battery and the frame, the locking lever breaks when the battery catches fire, and the rapid separation of the battery and the frame is achieved, solving the safety hazards and economic losses caused by the fire of the power battery.
Patent Information
- Application Number
- CN202422013441.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-19
AI Technical Summary
Power batteries are prone to fire and burning in new energy vehicles due to mechanical collisions, illegal charging and discharge failures, and the conventional fire extinguishing methods are ineffective, resulting in exhaustion of the vehicle, causing economic losses and safety hazards.
A connection structure between a battery and a frame is designed, including a battery fixing part, a frame connection part and a locking lever. A blasting device is provided inside the locking lever. The blasting device is communicatively connected with the vehicle control system. When the battery catches fire, burns or explodes, the blasting device is controlled to break the locking lever through the vehicle control system to achieve rapid separation between the battery and the vehicle frame.
When the battery catches fire and burns, by quickly disengaging the battery from the frame, the safety risks of drivers and passengers are reduced, economic losses are reduced, and the damage to other structures of the vehicle is avoided by the battery combustion.
Smart Images
Figure CN222905282U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power batteries, and in particular to a connection structure between a battery and a vehicle frame and a vehicle. Background Art
[0002] As global environmental awareness continues to increase, new energy vehicles are gaining more and more attention and favor. In particular, electric vehicles, with their zero emissions and low noise characteristics, have become the first choice for green urban travel, not only reducing air pollution, but also helping to ease traffic congestion. However, the popularity of new energy vehicles has also brought a series of safety issues, especially the frequent occurrence of power battery fires, combustion, and explosions, which pose a great threat to the safety of drivers and passengers and are a stumbling block to the development of the new energy vehicle industry.
[0003] Because battery materials and battery cells cannot be 100% safe, battery packs often catch fire due to mechanical collisions, illegal charging and discharging, or other faults. When a fire occurs, conventional fire extinguishing methods, whether it is carbon dioxide or covering with sand, are ineffective. Once the lithium battery reaches the stage of burning, it is difficult for fire rescue to extinguish it. They can only use large amounts of water to continuously lower the battery temperature. In most cases, the vehicle is burned out, causing the entire vehicle to be scrapped, resulting in huge economic losses and safety hazards. Utility Model Content
[0004] The utility model aims to provide a connection structure between a battery and a vehicle frame and a vehicle which can enable the battery and the vehicle frame to be quickly separated.
[0005] To achieve the above object, the utility model provides a connection structure between a battery and a frame, comprising a battery fixing portion, a frame connecting portion and a locking rod, wherein the battery fixing portion and the frame connecting portion are used to connect to the battery and the frame respectively;
[0006] The battery fixing portion is provided with a first locking hole, the frame connecting portion is provided with a second locking hole, the first locking hole and the second locking hole are arranged concentrically, and the locking rod is inserted into the first locking hole and the second locking hole to fix the battery fixing portion and the frame connecting portion;
[0007] An explosion device is provided inside the locking rod, the explosion device is communicatively connected to the vehicle control system, and the explosion device is configured to blow off the locking rod during explosion, so as to separate the battery fixing portion and the vehicle frame connecting portion.
[0008] Optionally, the locking rod is provided with a groove, and the groove is recessed toward the central axis of the locking rod.
[0009] Optionally, the groove is arranged at one end of the locking rod close to the battery fixing portion.
[0010] Optionally, the cross-section of the groove is V-shaped.
[0011] Optionally, the grooves are distributed along the circumference of the locking rod.
[0012] Optionally, the second locking hole is a blind hole, and an internal thread is provided inside the blind hole;
[0013] The locking rod is a hexagonal bolt, one end of the hexagonal bolt close to the frame connecting portion is provided with an external thread, and the hexagonal bolt is threadedly connected to the second locking hole.
[0014] Optionally, a diameter of the second locking hole is greater than a diameter of the first locking hole.
[0015] Optionally, the first locking hole is a light hole.
[0016] Optionally, the blasting device includes gunpowder and a fuse, wherein the fuse is communicatively connected to the vehicle control system, and the fuse is configured to detonate the gunpowder.
[0017] The utility model also provides a vehicle, comprising any one of the above-described connecting structures between a battery and a vehicle frame, wherein the battery fixing portion and the vehicle frame connecting portion of the connecting structure between the battery and the vehicle frame are respectively used for connecting to the battery and the vehicle frame.
[0018] Compared with the prior art, the technical solution provided by the utility model has the following advantages:
[0019] The connection structure between the battery and the frame provided by the utility model includes a battery fixing part, a frame connecting part and a locking rod. The battery fixing part is fixedly connected to the battery pack, and the frame connecting part is fixedly connected to the frame body. Furthermore, a first locking hole is provided on the battery fixing part, and a second locking hole is provided on the frame connecting part, and the first locking hole and the second locking hole are arranged concentrically, so that the locking rod can be inserted into the first locking hole and the second locking hole and locked by bolts, so that the battery fixing part and the frame connecting part are connected and fixed, and then the battery is connected to the frame. At the same time, a blasting device is arranged inside the locking rod, and the blasting device is communicatively connected with the vehicle control system. When the battery catches fire, burns, or explodes, the blasting device is controlled by the vehicle control system to explode, so that the blasting device explodes inside the locking rod, so that the locking rod is broken, so that the battery fixing part and the frame connecting part are quickly separated and the vehicle is moved away, thereby reducing the safety risk of the driver and passengers and reducing economic losses. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0022] Figure 1 This is a schematic diagram of the connection structure between the battery and the frame according to an embodiment of the utility model;
[0023] Figure 2 This is a schematic diagram of the battery fixing part and the frame connection part according to an embodiment of the utility model;
[0024] Figure 3 This is a schematic diagram of the locking rod structure according to an embodiment of the utility model.
[0025] Among them, 1. battery fixing part; 11. first locking hole; 2. frame connecting part; 21. second locking hole; 3. locking rod; 31. groove; 4. blasting device; 41. gunpowder; 42. fuse. DETAILED DESCRIPTION
[0026] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.
[0028] The connection structure between the battery and the frame is described in detail below through a specific embodiment:
[0029] like Figure 1 and Figure 2 As shown, the connection structure between the battery and the frame provided by the utility model includes a battery fixing part 1, a frame connecting part 2 and a locking rod 3. The battery fixing part 1 is used to connect with the battery pack, and the frame connecting part 2 is used to connect with the frame. The locking rod 3 is used to connect the battery fixing part 1 and the frame connecting part 2. The battery fixing part 1 can be a battery fixing foot, and the frame connecting part 2 can be a part of the frame. The sizes of the battery fixing part 1 and the frame connecting part 2 can be set as needed.
[0030] Furthermore, a first locking hole 11 is opened on the battery fixing part 1, and a second locking hole 21 is opened on the frame connecting part 2. The first locking hole 11 and the second locking hole 21 are arranged concentrically, and the locking rod 3 is inserted into the first locking hole 11 and the second locking hole 21 for locking, so that the battery fixing part 1 and the frame connecting part 2 can be connected and fixed, and then the frame and the battery pack can be connected and fixed.
[0031] Furthermore, a blasting device 4 is provided inside the locking rod 3, and the blasting device 4 is communicatively connected with the vehicle control system.
[0032] A groove 31 can be provided on the rod of the locking rod 3, and the blasting device 4 can be fixed in the groove 31. The size of the blasting device 4 can be set as required. The blasting device 4 can be gunpowder 41 and a fuse 42. The fuse 42 end can be connected to the vehicle control system or the battery management system for communication, and the fuse 42 can be controlled by the control switch to detonate the gunpowder 41. When the battery catches fire, burns, or explodes, the battery management system or the vehicle control system triggers the fuse 42 to work, causing the gunpowder 41 to explode instantly and generate huge energy in a sealed and extremely small space, thereby breaking the locking rod 3, and the power battery can be separated from the frame in the height direction by its own gravity. If the vehicle is in a driving state, the battery can continue to move forward for a distance after being separated from the frame by the vehicle's own inertia, thereby achieving physical separation of the battery from the vehicle. If the vehicle is in a parking state, the gear can be adjusted to the N gear, and the vehicle can be moved manually, pushed forward or pushed backward, so that the vehicle is away from the battery. At this time, only the battery is burned and damaged, and other structures of the vehicle other than the battery will not be damaged. The vehicle can still be used after replacing a new battery later.
[0033] Specifically, the second locking hole 21 on the frame connecting part 2 can be processed into a threaded hole, and correspondingly, threads can be processed on the locking rod 3. When installing and fixing, the locking rod 3 can be directly inserted into the first locking hole 11 and screwed into the second locking hole 21.
[0034] Furthermore, the second locking hole 21 can be processed into a blind hole to prevent the fragments of the locking rod 3 from passing through the first locking hole 11 and damaging other structures of the frame after the explosion. The depth of the blind hole can be processed as required.
[0035] Furthermore, the first locking hole 11 can be a light hole, and the aperture of the first locking hole 11 is larger than the aperture of the second locking hole 21. The locking rod 3 can be a hexagonal bolt, and an external thread can be processed on the end of the hexagonal bolt, and the external thread matches the internal thread in the second locking hole 21 so that the bolt is threadedly connected to the second locking hole 21. It can be understood that the groove 31 of the locking rod 3 is opened on the side of the bolt away from the thread to avoid fracture at the thread that affects the separation of the battery and the frame. The length of the thread on the bolt can be slightly larger than the depth of the second locking hole 21, so that the bolt can be firmly connected to the battery connecting part and the frame fixing part.
[0036] In some other embodiments, a first optical hole can be opened on the battery fixing part 1, and a second optical hole can be opened on the frame connecting part 2. The first locking hole 11 can have the same inner diameter as the second locking hole 21. The locking rod 3 is passed through the first locking hole 11 and the second locking hole 21, and nuts or other locking parts are fixed at both ends of the locking rod 3, thereby connecting and fixing the battery fixing part 1 to the frame connecting part 2.
[0037] The inner diameter of the first locking hole 11 and the second locking hole 21 can be slightly larger than the rod diameter of the locking rod 3, which is not only convenient for disassembly and assembly, but also can quickly disengage from the first locking hole 11 and / or the second locking hole 21 after the locking rod 3 breaks, thereby achieving the separation of the battery from the frame. It can be understood that the blasting device 4 is arranged on the rod body of the locking rod 3 between the battery fixing part 1 and the frame connecting part 2 to avoid affecting the separation of the battery from the frame. The blasting device 4 can also be other structures with destructive functions, as long as it can cause the locking rod 3 to break. Of course, a plurality of grooves 31 can also be provided on the locking rod 3, and the plurality of grooves 31 can be distributed along the circumference of the rod body of the locking rod 3 to prevent the locking rod 3 from failing to break or only partially breaking, which affects the separation of the battery from the frame.
[0038] The connection structure between the battery and the frame provided by the utility model comprises a battery fixing part 1, a frame connecting part 2 and a locking rod 3. The battery fixing part 1 is fixedly connected to the battery pack, and the frame connecting part 2 is fixedly connected to the frame body. Further, a first locking hole 11 is provided on the battery fixing part 1, and a second locking hole 21 is provided on the frame connecting part 2, and the first locking hole 11 and the second locking hole 21 are arranged concentrically, so that the locking rod 3 can be inserted into the first locking hole 11 and the second locking hole 21 and locked, so that the battery fixing part 1 and the frame connecting part 2 are connected and fixed, and then the battery is connected to the frame. At the same time, a blasting device 4 is arranged inside the locking rod 3, and the blasting device 4 is connected to the vehicle control system for communication. When the battery catches fire, burns, or explodes, the blasting device 4 is controlled by the vehicle control system to explode, so that the blasting device 4 explodes inside the locking rod 3, so that the locking rod 3 breaks, so that the battery fixing part 1 and the frame connecting part 2 are quickly separated and the vehicle is removed, thereby reducing the safety risk of the driver and passengers and reducing economic losses.
[0039] like Figure 3As shown, the locking rod 3 is provided with a groove 31, and the groove 31 is recessed toward the central axis direction of the locking rod 3. Therefore, the strength of the rod body of the locking rod 3 is relatively low at the groove 31, and it is easy to break when the blasting device 4 explodes. Specifically, a circle of V-shaped grooves 31 can be provided on the outer peripheral side of the rod body, or a plurality of V-shaped grooves 31 can be provided at intervals on the rod body, which can be set according to actual needs. It can be understood that after the groove 31 is provided, the locking rod 3 still meets the connection strength requirements of the battery fixing part 1 and the frame connecting part 2. Furthermore, the angle between the two sides of the V-shaped groove 31 can be 45° to 120°, which can be set according to needs, as long as the connection strength is met.
[0040] Preferably, the groove 31 is arranged at one end of the locking rod 3 close to the battery fixing part 1. When the blasting device 4 explodes, the locking rod 3 breaks at the groove 31, thereby causing the battery fixing end to be disconnected, thereby preventing the battery from being blocked from being disconnected. Of course, the groove 31 can also be arranged at the joint surface between the battery fixing part 1 and the frame connecting part 2, as long as the battery fixing part 1 can be disconnected from the frame connecting part 2 when the locking rod 3 breaks.
[0041] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0042] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A connection structure between a battery and a frame, characterized in that: It comprises a battery fixing part (1), a vehicle frame connecting part (2) and a locking rod (3), wherein the battery fixing part (1) and the vehicle frame connecting part (2) are used to connect to a battery and a vehicle frame respectively; The battery fixing portion (1) is provided with a first locking hole (11), the frame connecting portion (2) is provided with a second locking hole (21), the first locking hole (11) and the second locking hole (21) are arranged concentrically, and the locking rod (3) is inserted into the first locking hole (11) and the second locking hole (21) to fix the battery fixing portion (1) and the frame connecting portion (2); An explosion device (4) is provided inside the locking rod (3), and the explosion device (4) is connected to the vehicle control system for communication. The explosion device (4) is configured to blow off the locking rod (3) during explosion, so as to separate the battery fixing part (1) and the vehicle frame connecting part (2).
2. The connection structure between the battery and the frame according to claim 1, characterized in that: The locking rod (3) is provided with a groove (31), and the groove (31) is recessed towards the central axis direction of the locking rod (3).
3. The connection structure between the battery and the frame according to claim 2, characterized in that: The groove (31) is arranged at one end of the locking rod (3) close to the battery fixing part (1).
4. The connection structure between the battery and the frame according to claim 2, characterized in that: The cross section of the groove (31) is V-shaped.
5. The connection structure between the battery and the frame according to claim 2, characterized in that: The grooves (31) are distributed along the circumference of the locking rod (3).
6. The connection structure between the battery and the frame according to claim 1, characterized in that: The second locking hole (21) is a blind hole, and an internal thread is provided inside the blind hole; The locking rod (3) is a hexagonal bolt, one end of the hexagonal bolt close to the frame connecting portion (2) is provided with an external thread, and the hexagonal bolt is threadedly connected to the second locking hole (21).
7. The connection structure between the battery and the frame according to claim 1, characterized in that: The diameter of the second locking hole (21) is greater than the diameter of the first locking hole (11).
8. The connection structure between the battery and the frame according to claim 1, characterized in that: The first locking hole (11) is a light hole.
9. The connection structure between the battery and the frame according to claim 1, characterized in that: The blasting device (4) comprises gunpowder (41) and a fuse (42), wherein the fuse (42) is communicatively connected to the vehicle control system, and the fuse (42) is configured to detonate the gunpowder (41).
10. A vehicle, characterized in that: The invention comprises a battery-to-frame connection structure as claimed in any one of claims 1 to 9, wherein the battery fixing portion (1) and the frame connection portion (2) of the battery-to-frame connection structure are used for connecting to the battery and the frame respectively.