Vehicle chassis and vehicle

Abstract

The invention relates to the technical field of automobile chassis, and provides a vehicle chassis and a vehicle wherein the vehicle chassis comprises: a chassis comprising two first edges extending in the length direction, the two first edges being provided with a support portion for supporting a battery pack, the support portion being provided with a guide groove; the battery pack is connected with the supporting part and can slide in the axial direction of the underframe relative to the supporting part so as to be separated from the underframe; the sliding assembly is connected with the guide groove and used for fixing the battery pack, the axial length of the sliding assembly is smaller than that of the bottom frame, and the sliding assembly can slide relative to the width direction of the bottom frame so as to cancel limitation of the battery pack. According to the technical scheme, when the chassis is seriously impacted, the battery pack is separated from the chassis under the action of inertia, the safety problem of passengers in the vehicle caused by combustion of the battery pack is avoided, and the safety performance of the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile chassis, and in particular to a vehicle chassis and a vehicle. Background Art

[0002] When a vehicle is hit, the buffer structure on it can provide cushioning, but in actual applications, especially when an electric vehicle is severely hit, since the frame is usually tightly fixed to the battery, the battery will also be damaged after a severe collision, and serious combustion accidents may occur, thereby threatening the safety of passengers in the vehicle. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a vehicle chassis and a vehicle. When the chassis is severely impacted, the battery pack is separated from the chassis due to the action of inertia, thereby avoiding safety problems for passengers in the vehicle caused by battery pack combustion and improving the safety performance of the vehicle.

[0004] In order to solve the above technical problems, this application adopts the following technical solutions: In a first aspect, the present application provides a vehicle chassis, comprising: a chassis, comprising two first sides extending in a length direction, the two first sides being provided with support portions for supporting a battery pack, the support portions being provided with guide grooves; a battery pack, connected to the support portions and capable of sliding relative to the support portions along the axial direction of the chassis to detach from the chassis; a sliding assembly, connected to the guide groove, for fixing the battery pack, the axial length of the sliding assembly being smaller than the axial length of the chassis, and the sliding assembly being capable of sliding relative to the width direction of the chassis to remove the restriction on the battery pack.

[0005] As an embodiment, the guide groove is provided with a notch at one end facing the battery pack; the sliding assembly includes a first sliding member and a second sliding member that can slide relative to each other, and at least one of the first sliding member and the second sliding member includes a positioning block, and the positioning block is used to be inserted into the guide groove and protrude from the guide groove through the notch to be connected to the battery pack.

[0006] As an embodiment, a limiting groove connected to the positioning block is provided on one side of the battery pack corresponding to the positioning block.

[0007] As an embodiment, the guide groove is a triangular structure, and the top angle of the guide groove is facing the direction of the battery pack; the positioning block is a triangular structure, which is adapted to the guide groove.

[0008] As an embodiment, the support portion includes a guide rail facing the battery pack, and the battery pack is provided with a guide groove facing the guide rail, or; the support portion includes a guide groove facing the battery pack, and the battery pack is provided with a guide rail facing the guide groove.

[0009] As an embodiment, the top surface of the battery pack does not exceed the lowest surface of the base frame.

[0010] As an embodiment, the first sliding member includes a sliding post facing the second sliding member, and the second sliding member is provided with a sliding groove facing the first sliding member for the sliding post to be inserted into.

[0011] As an embodiment, the support portion also includes a support surface, the guide groove is provided on the support surface toward the battery pack, and the support surface is connected to the first edge via a connecting portion; the first sliding member and the second sliding member both include a first connecting section, the positioning block is provided on the first connecting section, and the length of the first connecting section is greater than the length of the support surface.

[0012] As an embodiment, the distance from the top corner of the positioning block to the first connecting section is smaller than the distance from the supporting surface to the first edge.

[0013] As an embodiment, the guide groove is provided with its bottom surface open in the height direction.

[0014] As an embodiment, the vehicle chassis further includes a locking member, wherein the locking member is connected to the first sliding member and the second sliding member respectively.

[0015] As an embodiment, the first sliding member and the second sliding member are provided with a clamping portion along the axial direction, and the locking member is provided with a clamping fitting portion that cooperates with the clamping portion.

[0016] As an embodiment, the clamping portion is an elongated groove, and the elongated groove passes through the sliding column and the sliding groove in the axial direction.

[0017] As an embodiment, a coupling portion is further provided on a side of the support surface facing the locking member, and the coupling portion is coupled to the locking member.

[0018] In a second aspect, the present application provides a vehicle, comprising the vehicle chassis described in the first aspect.

[0019] The technical solution of this application has the following beneficial effects: The vehicle chassis includes a chassis, which includes two first sides extending in a longitudinal direction. The two first sides are respectively provided with support portions for fixing a battery pack, which can support and limit the battery pack in height and width directions. The chassis is provided with a battery pack, which is connected to the support portions and can slide axially relative to the support portions, thereby being able to separate from the chassis. The vehicle chassis also includes a sliding assembly, which is connected to the guide groove and limits the axial sliding of the battery pack, thereby fixing the battery pack. The axial length of the sliding assembly is shorter than the length of the chassis. When the chassis is subjected to a positive impact, the chassis can preferentially absorb energy, avoiding direct damage to the battery pack, thereby improving safety. When the sliding assembly is impacted, the sliding assembly tends to move forward due to inertia, but the guide groove causes the sliding assembly to disengage from the guide groove, causing the sliding assembly to slide in the width direction of the chassis, thereby removing the battery pack from the restraint. The impact force also causes the battery pack to separate from the chassis due to its own inertia after the axial restraint is removed, thereby preventing safety issues for passengers in the vehicle when the battery pack burns, thereby improving the safety performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic structural diagram of a vehicle chassis provided in an embodiment of the present application; Figure 2 Schematic diagram of the structure of the vehicle chassis provided by the embodiment of the present application from different perspectives; Figure 3 A schematic structural diagram of a vehicle chassis from another perspective provided in an embodiment of the present application; Figure 4 A schematic diagram of the exploded structure of a vehicle chassis provided in an embodiment of the present application; Figure 5 Schematic diagram of the exploded structure of the vehicle chassis provided in the embodiment of the present application from different perspectives; Figure 6 Schematic diagram of the structure of the vehicle chassis provided in different embodiments of the present application.

[0022] Icons: 1- chassis; 11- first side; 111- collapse section; 12- second side; 13- connection part; 2- support part; 21- support surface; 22- guide groove; 221- notch; 23- guide rail; 24- joint part; 3- sliding assembly; 31- first sliding member; 311- sliding column; 312- first connecting section; 313- positioning block; 314- second connecting section; 32- second sliding member; 321- sliding groove; 33- snap-fitting part; 4- locking member; 41- snap-fitting part; 5- battery pack; 51- limiting groove; 52- guide groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0025] like Figure 1 and 4 As shown, in the first aspect, the embodiment of the present application provides a vehicle chassis, which includes a chassis 1, and the chassis 1 includes two first sides 11 extending in the length direction. The two first sides 11 are respectively provided with support parts 2 for fixing the battery pack 5, which can support and limit the battery pack 5 in the height and width directions; a battery pack 5 is provided on the chassis 1, and the battery pack 5 is connected to the support part 2, and the battery pack 5 can slide axially relative to the support part 2, so that it can be separated from the chassis 1; the vehicle chassis also includes a sliding component 3, which is connected to the guide groove 22, and limits the axial sliding of the battery pack 5, thereby fixing the battery pack 5, and the sliding component 3 is axially The length of is less than that of the chassis 1, so that when the chassis is subjected to a forward impact, the chassis 1 can absorb energy first, avoiding direct damage to the battery pack 5, thereby improving safety; and when the sliding assembly 3 is hit, the sliding assembly 3 will tend to move forward due to the effect of inertia, but the action of the guide groove 22 will cause the sliding assembly 3 to disengage from the guide groove 22, and the sliding assembly 3 will slide relative to the width direction of the chassis 1, and the battery pack 5 will cancel the limit. The impact force will also cause the battery pack 5 to separate from the chassis 1 due to its own inertia after the axial limit is canceled, thereby avoiding safety problems for passengers in the vehicle when the battery pack 5 burns, thereby improving the safety performance of the vehicle.

[0026] Optionally, in the embodiment of the present application, when the chassis is generally hit from the front or slightly away from the front, the battery pack 5 can be separated from the base frame 1; of course, when the chassis is hit from the rear or away from the rear, the battery pack 5 can also be separated from the base frame 1, and the separation process is the same as when it is hit from the front.

[0027] Optionally, the front of the chassis is the forward direction of the vehicle.

[0028] Alternatively, in the embodiment of the present application, the battery pack 5 can only be separated from the base frame 1 when the chassis is subjected to a sufficiently large impact force, that is, when the sliding assembly 3 is about to be damaged, the battery pack 5 can be separated from the base frame 1. Instead, the battery pack 5 can be separated from the base frame 1 when the base frame 1 is damaged by a minor impact but the sliding assembly 3 is not damaged.

[0029] Optionally, the battery pack 5 is connected to the electronic control through some lines. When the chassis is severely impacted, the lines generally cannot pull the battery pack 5, that is, the inertia of the battery pack 5 itself can still break the lines and detach from the chassis 1.

[0030] Optionally, in the embodiment of the present application, the length direction of the base frame 1 is the X direction, the width direction is the Y direction, and the height direction is the Z direction.

[0031] like Figure 1 As shown, optionally, the chassis 1 also includes two second sides 12, and the two ends of the two second sides 12 are respectively connected to the two first sides 11, thereby enclosing a chassis 1, and when the vehicle is moving forward, the second sides 12 can be designed as anti-collision beams, so that when the chassis 1 is hit, the anti-collision beams can absorb the impact force received by the chassis 1, thereby improving the safety of the chassis.

[0032] like Figure 1 As shown, optionally, the first side 11 further includes two crush segments 111, which are respectively located at the front end and the rear end of the first side 11 as a whole. When the chassis is hit, the crush segments 111 can collapse, thereby absorbing the impact force, thereby improving the overall performance of the vehicle.

[0033] Optionally, the crush section 111 is typically made of high-strength steel or aluminum alloy. These materials not only meet strength requirements but also enable controlled deformation according to design requirements. For example, high-strength steel can undergo precise heat treatment to deform along a predetermined path, such as bending or folding, when subjected to a certain impact force, rather than breaking directly.

[0034] Optionally, the chassis 1 may also be made of high-strength steel or aluminum alloy.

[0035] like Figure 4 and 5As shown, as an embodiment, a notch 221 is provided at one end of the guide groove 22 facing the battery pack 5; the sliding assembly 3 includes a first sliding member 31 and a second sliding member 32 that can slide relative to each other along the width direction of the chassis, and at least one of the first sliding member 31 and the second sliding member 32 includes a positioning block 313, which can be inserted into the guide groove 22. Since the end of the guide groove 22 facing the battery pack 5 is a notch 221, the positioning block 313 can protrude from the guide groove 22 through the notch 221 and be connected to the battery pack 5, thereby limiting the battery pack 5 in the axial direction of the chassis.

[0036] Optionally, the end of the guide groove 22 facing the battery pack 5 refers to: the end of the guide groove 22 protruding toward the battery pack 5 .

[0037] like Figure 4 As shown, optionally, the first sliding member 31 includes a plurality of positioning blocks 313 , and the second sliding member 32 also includes a plurality of positioning blocks 313 . The number of the guide grooves 22 corresponds to the number of the guide blocks, thereby improving the limiting stability of the battery pack 5 .

[0038] Optionally, the first sliding member 31 and the second sliding member 32 may be connected by snapping, thereby improving the structural stability of the first sliding member 31 and the second sliding member 32 , and also improving the stability between the first sliding member 31 and the second sliding member 32 and the battery pack 5 .

[0039] Of course, the first sliding member 31 and the second sliding member 32 can also be detachably connected by other means, but the prerequisite is that the structural stability of the detachable connection method cannot be particularly high. For example, the first sliding member 31 and the second sliding member 32 cannot be connected by means of bolts, because bolt connection will make it difficult for the first sliding member 31 and the second sliding member 32 to slide apart relative to each other when encountering an impact force, which will cause the battery pack 5 to be unable to detach from the base frame 1. Generally, the first sliding member 31 and the second sliding member 32 can be connected by means of snaps, magnets, spot welding or soft soldering. Such a connection method can, on the one hand, meet the fixing strength requirements of the battery pack 5; on the other hand, when the base frame 1 is impacted and the impact force has contacted the first sliding member 31 and the second sliding member 32, the above-mentioned connection method can make it easier for the first sliding member 31 and the second sliding member 32 to separate from each other through the guiding effect of the guide groove 22, and ultimately the battery pack 5 can be separated from the base frame 1.

[0040] Optionally, the shape of the guide groove 22 matches the shape of the guide block, and the volume of the guide block is larger than that of the guide groove 22 , so that it can protrude from the notch 221 and connect with the battery pack 5 .

[0041] like Figure 4As shown, as an embodiment, a limiting groove 51 connected to the positioning block 313 is provided on the side corresponding to the battery pack 5 and the positioning block 313. By providing the limiting groove 51 on the battery pack 5, the positioning block 313 can be limited and matched with the limiting groove 51.

[0042] Optionally, the battery pack 5 includes a box body and a battery module arranged in the box body, and the limiting groove 51 is opened on the outer box body.

[0043] Optionally, a plurality of limiting grooves 51 are provided on both sides of the battery pack 5 along the X-axis direction, and the number of the limiting grooves 51 corresponds to the number of the positioning blocks 313 .

[0044] like Figure 4 As shown, as an embodiment, the guide groove 22 is a triangular structure, and the top angle of the guide groove 22 is facing the direction of the battery pack 5; the positioning block 313 is a triangular structure, which is compatible with the guide groove 22. The guide groove 22 and the positioning block 313 are both designed as triangular structures because the top angle of the triangle is relatively sharp, and the positioning block 313 can more easily limit the battery pack 5 through the notch 221 of the guide groove 22. At the same time, the positioning block 313 adopts a triangular structure, and compared with other structures, the positioning area of the battery pack 5 is smaller.

[0045] In addition, the guide groove 22 is designed to be a triangular structure. When the positioning block 313 is inserted into the guide groove 22, since the top corner area of the positioning block 313 is used for positioning, the top corner of the guide groove 22 is provided with a notch 221 for the positioning block 313 to protrude and position with the battery pack 5, and the other two sides of the guide groove 22 are inclined hypotenuses relative to the length direction of the base frame 1. In this way, when the base frame 1 is hit in the front or slightly away from the front, and the impact force further affects the first sliding member 31 and the second sliding member 32, since the guide groove 22 is an inclined hypotenuse, that is, the side of the guide groove 22 close to the front is at an acute angle to the direction of the impact force, the positioning block 313 on the first sliding member 31 and the second sliding member 32 is more easily disengaged from the guide groove 22 due to the effect of the inclined hypotenuse of the guide groove 22, and the first sliding member 31 and the second sliding member 32 are more easily slidable relative to each other along the width direction of the base frame 1, thereby removing the restriction on the battery pack 5, and the battery pack 5 can be separated from the base frame 1 by the action of inertia.

[0046] Moreover, the guide groove 22 is designed to be a triangular structure. When the chassis is hit from the rear or slightly away from the rear, the first sliding member 31 and the second sliding member 32 can slide relative to each other more easily along the width direction of the base frame 1, thereby eliminating the limitation on the battery pack 5.

[0047] like Figure 4As shown, as an embodiment, the support portion 2 includes a guide rail 23 facing the battery pack 5, and the battery pack 5 is provided with a guide groove 52 facing the guide rail 23. By providing the guide rail 23 and the guide groove 52, the friction is reduced, so that the battery pack 5 can be more smoothly separated from the base frame 1; of course, the support portion 2 can also include the guide groove 52 facing the battery pack 5, and the battery pack 5 can be provided with a guide rail 23 facing the guide groove 52.

[0048] Optionally, the guide rail 23 is protruding along the support surface 21 toward the battery pack 5, and the guide groove 22 can be at the same height as the guide rail 23, that is, the guide groove 22 is spaced apart on the guide rail 23, and the upper limit groove 51 on the battery pack 5 is also spaced apart on the bottom wall of the guide groove 52.

[0049] Optionally, the guide groove 52 is also opened on the box body of the battery pack 5 .

[0050] As an embodiment, the top surface of the battery pack 5 does not exceed the lowest surface of the base frame 1, that is, the battery pack 5 is below the base frame 1, and the two ends of the battery pack 5 are not blocked by the base frame 1; this can avoid interference between the battery pack 5 and the base frame 1, and when the battery pack 5 needs to be separated from the base frame 1, it can be separated from the base frame 1 smoothly.

[0051] Optionally, since the battery pack 5 is set directly towards the ground, in order to prevent small stones on the road from bouncing up and penetrating the battery pack 5, an additional protective plate can be set at the bottom of the battery pack 5, that is, at the lowest surface of the box.

[0052] like Figure 3 and 5 As shown, as an embodiment, the first sliding member 31 includes a sliding column 311 facing the second sliding member 32, and the second sliding member 32 is provided with a sliding groove 321 facing the first sliding member 31 for the sliding column 311 to be inserted. By setting the sliding column 311 and the sliding groove 321, the first sliding member 31 and the second sliding member 32 can slide with each other, and before the first sliding member 31 and the second sliding member 32 slide relative to each other, the sliding column 311 is inserted into the sliding groove 321, which can make the first sliding member 31 and the second sliding member 32 more stable.

[0053] Optionally, the first sliding member 31 and the second sliding member 32 may also be other sliding forms, such as the first sliding member 31 may be provided with a sliding groove along the width direction and passing through in the height direction, and the second sliding member 32 may be provided with a buckle to slide in the sliding groove.

[0054] Optionally, the sliding grooves 321 and the sliding columns 311 provided on the first sliding member 31 and the second sliding member 32 may also be reversed.

[0055] like Figures 1 to 3As shown, as an embodiment, the support portion 2 also includes a support surface 21, and a guide groove 22 is provided on the support surface 21 toward the battery pack 5, so that the guide groove 22 is opened in the horizontal direction, which is convenient for the positioning block 313 to be inserted into the guide groove 22; the support surface 21 is connected to the first side 11 through the connecting portion 13, and the connection portion 13 is provided so that the support portion 2 can be spaced apart from the first side 11, so that the first sliding member 31 and the second sliding member 32 are conveniently assembled into the guide groove 22; the first sliding member 31 and the second sliding member 32 both include a first connecting section 312, and the first connecting section 312 is provided with a positioning block 313. At the same time, the length of the first connecting section 312 is greater than the support surface 21. The length of the support surface 21 prevents the impact force from hitting the support part 2. When the chassis is hit, the base frame 1 is hit first, followed by the first sliding member 31 and the second sliding member 32, which can buffer the support part 2 and the battery pack 5. In addition, the length of the first connecting section 312 is greater than the length of the support surface 21, so that when the first sliding member 31 and the second sliding member 32 are respectively connected to the guide groove 22, it can also facilitate the connection between the sliding columns 311 at both ends of the first connecting section 312 of the first sliding member 31 and the sliding grooves 321 at both ends of the first connecting section 312 of the second sliding member 32, thereby avoiding interference from the support surface 21.

[0056] Optionally, the support surface 21 is arranged perpendicular to the base frame 1 .

[0057] Optionally, the support portion 2 and the first edge 11 may be integrally formed.

[0058] like Figure 5 As shown, optionally, the first sliding member 31 also includes two second connecting segments 314, the two second connecting segments 314 are respectively connected to the first connecting segment 312, and the second connecting segment 314 is vertically connected to the first connecting segment 312 upward, and the second connecting segment 314 is connected to the sliding column 311. By setting the second connecting segment 314 and setting the second connecting segment 314 upward, the sliding column 311 can be higher than the battery pack 5, which is convenient for connection with the locking member 4; at the same time, the second sliding member 32 also includes two second connecting segments 314, the two second connecting segments 314 are respectively connected to the first connecting segment 312 of the second sliding member 32, and the second connecting segment 314 is vertically connected to the first connecting segment 312 upward, and the second connecting segment 314 is connected to the sliding groove 321. By setting the second connecting segment 314 and setting the second connecting segment 314 upward, the sliding groove 321 can be higher than the battery pack 5, which is convenient for connection with the locking member 4.

[0059] like Figure 4 As shown, as an embodiment, the distance from the top corner of the positioning block 313 to the first connecting section 312 (ie Figure 4 The distance between the support surface 21 and the first side 11 (i.e. Figure 4When the first and second slide members 31 and 32 are assembled with the base frame 1 respectively, the first and second slide members 31 and 32 are lifted up from the bottom of the base frame 1 respectively to provide installation space for the first and second slide members 31 and 32 so that the positioning block 313 is aligned with the guide groove 22 and can be smoothly inserted into the guide groove 22 to limit the battery pack 5. The sliding assembly 3 after installation is also located in the base frame 1. In this way, the maximum displacement of the first and second slide members 31 and 32 in the sliding direction along the width direction of the base frame 1 is also within the base frame 1, and the base frame 1 can limit the first and second slide members 31 and 32; avoid the distance from the support surface 21 to the first side 11 being too short, resulting in the first and second slide members 31 and 32 being inserted into the guide outside the base frame 1. After the battery pack 5 is fixed, they are also outside the base frame 1. When the vehicle is hit from the front, the first and second slide members 31 and 32 are easy to scatter.

[0060] Optionally, after the first sliding member 31 and the second sliding member 32 are respectively installed in the guide groove 22, there is a gap between the first sliding member 31 and the second sliding member 32 and the corresponding first edge 11, which can meet the movement of the first sliding member 31 and the second sliding member 32 in the width direction.

[0061] like Figure 6 As shown, as a parallel embodiment, the guide groove 22 is open at the bottom in the height direction, that is, the first sliding member 31 and the second sliding member 32 can be directly installed in the guide groove 22 in the height direction, and then pushed toward the battery pack 5, so that the positioning block 313 can position the battery pack 5, and it is not necessary for the distance from the top corner of the positioning block 313 to the first connecting section 312 to be less than the distance from the support surface 21 to the first side 11.

[0062] like Figure 1 As shown, as an embodiment, the vehicle chassis also includes a locking member 4, which is respectively connected to the first sliding member 31 and the second sliding member 32, thereby limiting the relative movement of the first sliding member 31 and the second sliding member 32, thereby improving the stability of the fixation of the battery pack 5.

[0063] Optionally, the locking member 4 may be in the shape of a plate or a frame.

[0064] Optionally, the length of the locking member 4 is greater than the length of the sliding assembly 3 in the axial direction. When the chassis is hit, the locking member 4 will be damaged before the sliding assembly 3, which can absorb part of the energy and improve safety.

[0065] like Figure 4As shown, as an embodiment, the first sliding member 31 and the second sliding member 32 are provided with a snap-fitting portion 33 in the axial direction, and the locking member 4 is provided with a snap-fitting portion 41 that cooperates with the snap-fitting portion 33. By setting the snap-fitting portion 33 and the snap-fitting portion 41, the locking member 4 can be tightly fitted with the first sliding member 31 and the second sliding member 32, and when the chassis is hit, the locking member 4 is also easily separated from the first sliding member 31 and the second sliding member 32.

[0066] As an embodiment, the snap-fitting portion 33 is an elongated groove arranged along the axial direction, and the elongated groove sliding column 311 and the sliding groove 321 are respectively provided with elongated grooves, which are arranged through in the axial direction, and the snap-fitting portion 41 can be a protrusion. In this way, when the chassis is hit directly in front of or slightly deviated from the front, the impact force generated in the axial direction can make the locking member 4 easily separate from the first sliding member 31 and the second sliding member 32. After the locking member 4 is separated from the first sliding member 31 and the second sliding member 32, if the first sliding member 31 and the second sliding member 32 continue to be subjected to the impact force, then under the action of the guide groove 22, the first sliding member 31 and the second sliding member 32 can slide relative to each other in the width direction through the guide groove 22 due to the action of inertia, thereby removing the restriction on the battery pack 5.

[0067] like Figure 1 and 4 As shown, as an embodiment, a coupling portion 24 is further provided on the side of the support surface 21 facing the locking member 4. The coupling portion 24 is combined with the locking member 4 so that the locking member 4 can absorb energy after being combined with the coupling portion 24, thereby improving safety.

[0068] Optionally, multiple coupling parts 24 are provided to improve the stability with the locking member 4; the coupling part 24 is strip-shaped, and the coupling with the locking member 4 includes a tight fit, or spot welding, or the fitting between the coupling part 24 and the locking member 4 is achieved by reducing the contact area between the coupling part 24 and the locking member 4. In this way, while absorbing energy, the locking member 4 is relatively easy to separate from the sliding assembly 3 and the coupling part 24, so that the first sliding member 31 and the second sliding member 32 are also easy to slide relative to each other.

[0069] In a second aspect, an embodiment of the present application further provides a vehicle on which the vehicle chassis provided in the first aspect is installed.

[0070] The above description is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

[0071] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

[0072] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

Claims

1. A vehicle chassis, characterized in that: include: The base frame includes two first sides extending in a length direction, the two first sides are provided with support portions for supporting the battery pack, and the support portions are provided with guide grooves; a battery pack connected to the support portion and capable of sliding relative to the support portion along the axial direction of the base frame to detach from the base frame; A sliding assembly is connected to the guide groove and is used to fix the battery pack. The axial length of the sliding assembly is smaller than the axial length of the base frame. The sliding assembly can slide relative to the width direction of the base frame to remove the restriction on the battery pack.

2. The vehicle chassis according to claim 1, characterized in that The guide groove is provided with a notch at one end facing the battery pack; The sliding assembly includes a first sliding member and a second sliding member that can slide relative to each other. At least one of the first sliding member and the second sliding member includes a positioning block. The positioning block is used to be inserted into the guide groove and protrude from the guide groove through the notch to be connected to the battery pack.

3. The vehicle chassis according to claim 2, characterized in that A limiting groove connected to the positioning block is provided on one side of the battery pack corresponding to the positioning block.

4. The vehicle chassis according to claim 2 or 3, characterized in that: The guide groove is a triangular structure, and the top corner of the guide groove faces the direction of the battery pack; The positioning block is a triangular structure and is adapted to the guide groove.

5. The vehicle chassis according to any one of claims 1 to 3, characterized in that: The support portion includes a guide rail facing the battery pack, and the battery pack is provided with a guide groove facing the guide rail, or; The support portion includes a guide groove facing the battery pack, and the battery pack is provided with a guide rail facing the guide groove.

6. The vehicle chassis according to claim 5, characterized in that The top surface of the battery pack does not exceed the lowest surface of the base frame.

7. The vehicle chassis according to claim 2 or 3, characterized in that: The first sliding member includes a sliding post facing the second sliding member, and the second sliding member is provided with a sliding groove facing the first sliding member for the sliding post to be inserted into.

8. The vehicle chassis according to claim 2 or 3, characterized in that: The support portion further includes a support surface, the guide groove is provided on the support surface facing the direction of the battery pack, and the support surface is connected to the first side via a connecting portion; The first sliding member and the second sliding member each include a first connecting section, the first connecting section is provided with the positioning block, and the length of the first connecting section is greater than the length of the supporting surface.

9. The vehicle chassis according to claim 8, characterized in that The distance from the top corner of the positioning block to the first connecting section is smaller than the distance from the supporting surface to the first edge.

10. The vehicle chassis according to claim 8, characterized in that The bottom surface of the guide groove is open in the height direction.

11. The vehicle chassis according to claim 8, characterized in that The vehicle chassis further includes a locking member connected to the first sliding member and the second sliding member, respectively.

12. The vehicle chassis according to claim 11, characterized in that The first sliding member and the second sliding member are provided with a clamping portion along the axial direction, and the locking member is provided with a clamping matching portion that matches the clamping portion.

13. The vehicle chassis according to claim 12, characterized in that The clamping portion is a long groove, and the long groove passes through the sliding column and the sliding groove in the axial direction.

14. The vehicle chassis according to any one of claims 11 to 13, characterized in that A coupling portion is further provided on a side of the support surface facing the locking member, and the coupling portion is coupled to the locking member.

15. A vehicle, characterized in that: The vehicle comprises the vehicle chassis according to any one of claims 1 to 14.

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