Vehicle battery structure and vehicle

Abstract

The present invention belongs to the technical field of vehicle batteries, and particularly relates to a vehicle battery structure and a vehicle. In this vehicle battery structure, elastic connectors abut the battery body between the left and right sides of the vehicle body; the battery body is provided with sliding guide blocks, and the mounting beam is provided with guiding members; the sliding guide blocks are provided with sliding guide block abutting surfaces and sliding guide block guiding surfaces; the guiding members are provided with guiding member abutting surfaces and guiding member guiding surfaces; the battery body abuts against the mounting frame through the sliding guide block abutting surfaces and the guiding member abutting surfaces; when the battery body deflects towards one side of the vehicle body, the battery body can slide down towards one side of the vehicle body along the fitting surface of the sliding guide block guiding surface and the guiding member guiding surface. At this time, the gap between the battery body and the impacted side increases, reducing the risk of impact and effectively avoiding risks such as fire and leakage; moreover, since the battery body slides down towards one side of the vehicle body, the gap between the battery body and the ground decreases, so the overall vehicle center of mass is lowered, reducing the risk of vehicle rollover.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle batteries, and particularly relates to a vehicle battery structure and a vehicle. Background Art

[0002] At present, with the increasingly severe situation of energy crisis and environmental pressure, the development of new energy vehicles (including hybrid and pure electric new energy vehicles) has gradually been more widely applied. The vehicle battery is an important part of new energy vehicles that stores the energy during the driving process of the whole vehicle. However, the larger the capacity of the vehicle battery, the larger its volume. Due to the limited layout space on the vehicle, the vehicle battery can only be placed between the front and rear axles of the lower body. When a side collision occurs in an accident, there is a high risk of battery short - circuit fire, leakage, rollover, etc. In the existing technology, the battery on the vehicle lacks a passive safety control system and only relies entirely on the deformation and energy absorption of the battery and the vehicle body to reduce the side - collision impact on the battery. Thus, when the side - collision impact force on the battery is too large, it is bound to cause serious damage to the battery and lead to serious accidents such as short - circuit fire and leakage. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: aiming at the problem in the existing technology that when the side - collision impact force on the battery is too large, it will cause serious damage to the battery and lead to serious accidents such as short - circuit fire and leakage, to provide a vehicle battery structure and a vehicle.

[0004] To solve the above - mentioned technical problem, on the one hand, an embodiment of the present invention provides a vehicle battery structure, including a battery body, an elastic connecting member, and a mounting bracket connecting to the vehicle body. The elastic connecting member abuts the battery body between the left and right sides of the vehicle body.

[0005] Sliding guide blocks are provided on both sides of the battery body near the front and rear ends of the vehicle body, and guiding members are provided on the mounting bracket and are in fit with the sliding guide blocks; a sliding - guide - block abutting surface and a sliding - guide - block guiding surface are provided on the sliding guide block; a guiding - member abutting surface and a guiding - member guiding surface are provided on the guiding member; the battery body abuts against the mounting bracket through the sliding - guide - block abutting surface and the guiding - member abutting surface.

[0006] When the battery body deviates towards one side of the vehicle body, the battery body can slide down towards one side of the vehicle body along the fitting surface of the sliding - guide - block guiding surface and the guiding - member guiding surface.

[0007] Optionally, the elastic connecting member includes a first elastic member and a second elastic member, and the mounting bracket includes a front mounting beam and a rear mounting beam; the first elastic member abuts against one end of the battery body near the left side of the vehicle body, and the second elastic member abuts against one end of the battery body near the right side of the vehicle body.

[0008] The sliding guide block includes a first sliding guide block disposed on one side of the battery body close to the front end of the vehicle body, and a second sliding guide block disposed on one side of the battery body close to the rear end of the vehicle body; the guiding member includes a first guiding member disposed on the front mounting beam and fitting with the first sliding guide block, and a second guiding member disposed on the rear mounting beam and fitting with the second sliding guide block;

[0009] The sliding guide block abutting surface includes a first abutting surface disposed on the first sliding guide block, and a third abutting surface disposed on the second sliding guide block; the guiding member abutting surface includes a second abutting surface disposed on the first guiding member, and a fourth abutting surface disposed on the second guiding member; when the first abutting surface abuts against the second abutting surface, the third abutting surface abuts against the fourth abutting surface;

[0010] The sliding guide block guiding surface includes a first left guiding surface, a first right guiding surface, a third left guiding surface, and a third right guiding surface; the first left guiding surface and the first right guiding surface are disposed on the first sliding guide block and on opposite sides of the first abutting surface; the third left guiding surface and the third right guiding surface are disposed on the second sliding guide block and on opposite sides of the third abutting surface; the guiding member guiding surface includes a second left guiding surface, a second right guiding surface, a fourth left guiding surface, and a fourth right guiding surface; the second left guiding surface and the second right guiding surface are disposed on the first guiding member and on opposite sides of the second abutting surface; the fourth left guiding surface and the fourth right guiding surface are disposed on the second guiding member and on opposite sides of the fourth abutting surface;

[0011] When the battery body deviates to the right side of the vehicle body, the first left guiding surface fits with the second right guiding surface, the third left guiding surface fits with the fourth right guiding surface, and the battery body slides along the second right guiding surface and the fourth right guiding surface to the right side of the vehicle body; when the battery body deviates to the left side of the vehicle body, the first right guiding surface fits with the second left guiding surface, the third right guiding surface fits with the fourth left guiding surface, and the battery body slides along the second left guiding surface and the fourth left guiding surface to the left side of the vehicle body.

[0012] Optionally, the mounting bracket further includes a left mounting beam and a right mounting beam; the left end of the front mounting beam is connected to the front end of the left mounting beam, and the right end of the front mounting beam is connected to the front end of the right mounting beam; the left end of the rear mounting beam is connected to the rear end of the left mounting beam, and the right end of the rear mounting beam is connected to the rear end of the right mounting beam; a receiving space for mounting the battery body is formed among the front mounting beam, the rear mounting beam, the left mounting beam and the right mounting beam; the first elastic member is located between the left mounting beam and the battery body, and the second elastic member is located between the right mounting beam and the battery body.

[0013] Optionally, the first guiding member includes a first guide rail bracket and a first convex block disposed on the front mounting beam, the first guide rail bracket is fixedly mounted on the first convex block, and the second abutting surface, the second left guiding surface and the second right guiding surface are all located on the first guide rail bracket; and / or

[0014] The second guiding member includes a second guide rail bracket and a second convex block disposed on the front mounting beam, the second guide rail bracket is fixedly mounted on the second convex block, and the fourth abutting surface, the fourth left guiding surface and the fourth right guiding surface are all located on the second guide rail bracket.

[0015] Optionally, the front mounting beam is further provided with a first limiting portion for limiting the sliding height of the first sliding guide block of the battery body from sliding down to one side of the vehicle body, and the rear mounting beam is further provided with a second limiting portion for limiting the sliding height of the second sliding guide block of the battery body from sliding down to one side of the vehicle body.

[0016] Optionally, the first limiting portion is a first flanging disposed on the first guide rail bracket, and the first flanging is parallel to the first abutting surface;

[0017] The second limiting portion is a second flanging disposed on the second guide rail bracket, and the second flanging is parallel to the second abutting surface.

[0018] Optionally, two or more of the first sliding guide blocks are arranged at intervals at the front end of the battery body, and two or more of the first guiding members equal in number to the first sliding guide blocks are arranged at intervals on the front mounting beam; and / or two or more of the second sliding guide blocks are arranged at intervals at the rear end of the battery body, and two or more of the second guiding members equal in number to the second sliding guide blocks are arranged at intervals on the rear mounting beam.

[0019] Optionally, a first mounting platform and a second mounting platform are further provided on one side of the front mounting beam where the first guiding member is disposed, the first mounting platform is located at one end of the first guiding member close to the left side of the vehicle body, and the second mounting platform is located at one end of the first guiding member close to the right side of the vehicle body;

[0020] On one side of the rear mounting beam where the second guiding member is provided, there are also a third mounting platform and a fourth mounting platform. The third mounting platform is located at one end of the second guiding member close to the left side of the vehicle body, and the fourth mounting platform is located at one end of the second guiding member close to the right side of the vehicle body;

[0021] The first sliding guide block extends into the space between the first mounting platform and the second mounting platform and fits with the first guiding member. One side of the battery body close to the front end of the vehicle body fits with the first mounting platform and the second mounting platform; the second sliding guide block extends into the space between the third mounting platform and the fourth mounting platform and fits with the second guiding member. One side of the battery body close to the rear end of the vehicle body fits with the third mounting platform and the fourth mounting platform.

[0022] Optionally, the vehicle battery structure further includes a top buffer spring connected between the battery body and the vehicle body.

[0023] According to the vehicle battery structure of the invention embodiment, the elastic connecting member abuts the battery body between the left and right sides of the vehicle body; sliding guide blocks are provided on both sides of the battery body close to the front end and the rear end of the vehicle body, and guiding members that fit with the sliding guide blocks are provided on the mounting beam; the sliding guide blocks are provided with a sliding guide block abutting surface and a sliding guide block guiding surface; the guiding members are provided with a guiding member abutting surface and a guiding member guiding surface; when the vehicle is subjected to a side impact force, if the compression amounts of the elastic connecting members under the action of the side impact force do not exceed the preset compression range, the battery body abuts against the mounting frame through the sliding guide block abutting surface and the guiding member abutting surface; the center of gravity of the battery body remains at a certain height unchanged; and when the vehicle is subjected to a side impact force, if the compression amounts of the elastic connecting members under the action of the side impact force exceed the preset compression range, the battery body deviates to one side of the vehicle body, and the battery body can slide down along the fitting surface of the sliding guide block guiding surface and the guiding member guiding surface to one side of the vehicle body. At this time, the gap between the battery body and the impacted side increases, reducing the impact risk and effectively avoiding risks such as fire and leakage; and, because the battery body slides down to one side of the vehicle body, the center of gravity of the battery body moves down, and the gap between the battery body and the ground decreases, so the overall vehicle center of mass is reduced, reducing the risk of vehicle rollover.

[0024] On the other hand, the invention embodiment also provides a vehicle, which includes the above-mentioned vehicle battery structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an assembly structure schematic diagram of the vehicle battery structure provided by an embodiment of the invention mounted on the vehicle body of the vehicle.

[0026] Figure 2 is the front view of the vehicle battery structure provided by an embodiment of the invention.

[0027] Figure 3 is Figure 2 A schematic structural view of the A-A cross-section of the vehicle battery structure shown in

[0028] Figure 4 is Figure 3 A schematic structural view of the B-B cross-section of the vehicle battery structure shown in

[0029] Figure 5 is the front view of the battery body of the vehicle battery structure provided by an embodiment of the present invention.

[0030] Figure 6 is the left view of the battery body of the vehicle battery structure provided by an embodiment of the present invention.

[0031] Figure 7 is the front view of the front mounting beam of the vehicle battery structure provided by an embodiment of the present invention.

[0032] Figure 8 is the top view of the front mounting beam of the vehicle battery structure provided by an embodiment of the present invention.

[0033] Figure 9 is the front view of the first guide rail bracket of the vehicle battery structure provided by an embodiment of the present invention.

[0034] Figure 10 is the left view of the first guide rail bracket of the vehicle battery structure provided by an embodiment of the present invention.

[0035] The reference numerals in the specification are as follows:

[0036] 1. Battery body; 11. First sliding guide block; 111. First abutting surface; 112. First left guiding surface; 113. First right guiding surface; 12. Second sliding guide block;

[0037] 2. First elastic member; 3. Second elastic member;

[0038] 4. Mounting frame; 41. Front mounting beam; 411. First guiding member; 4111. Second abutting surface; 4112. Second left guiding surface; 4113. Second right guiding surface; 4114. First guide rail bracket; 4115. First convex block; 412. First limiting portion; 413. First mounting table; 414. Second mounting table; 42. Rear mounting beam; 421. Second guiding member; 4211. Second guide rail bracket; 422. Second limiting portion; 43. Left mounting beam; 44. Right mounting beam; 45. Mounting hole; 5. Top buffer spring; 6. Vehicle body. Detailed implementation manners

[0039] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "middle", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0041] As Figure 2 shown in Figure 2 is the front view of the vehicle battery structure provided by an embodiment of the present invention. In the present invention, the "front" referred to is the front end of the vehicle body; that is Figure 2 above the vehicle battery structure shown (for example: the front mounting beam 41, etc.); the "rear" is the rear end of the vehicle body; that is Figure 2 below the vehicle battery structure shown (for example: the rear mounting beam 42, etc.); the "left" is the left side of the vehicle body, that is Figure 2 to the left of the vehicle battery structure shown (for example: the left mounting beam 43, etc.); the "right" is the right side of the vehicle body, that is Figure 2 to the right of the vehicle battery structure shown (for example: the right mounting beam 44, etc.).

[0042] As Figures 1 to 4 shown, an embodiment of the present invention provides a vehicle battery structure, including a battery body 1, an elastic connecting member, and a mounting bracket 4 connecting the vehicle body 6. The elastic connecting member abuts the battery body 1 between the left and right sides of the vehicle body 6;

[0043] Sliding guide blocks are provided on both sides of the battery body 1 near the front end and the rear end of the vehicle body 6, and guiding members are provided on the mounting bracket that fit with the sliding guide blocks; a sliding guide block abutting surface and a sliding guide block guiding surface are provided on the sliding guide blocks; a guiding member abutting surface and a guiding member guiding surface are provided on the guiding members; the battery body 1 abuts on the mounting bracket 4 through the sliding guide block abutting surface and the guiding member abutting surface;

[0044] When the battery body 1 deviates to one side of the vehicle body 6, the battery body 1 can slide down to one side of the vehicle body 6 along the fitting surface of the sliding guide block guiding surface and the guiding member guiding surface.

[0045] According to the vehicle battery structure of the invention embodiment, when the vehicle is subjected to a side collision impact force, if the compression amount of the elastic connecting member under the action of the side collision impact force does not exceed the preset compression range, the battery body 1 abuts against the mounting bracket 4 through the sliding guide block abutting surface and the guide member abutting surface; the center of gravity of the battery body 1 remains at a certain height unchanged; and when the vehicle is subjected to a side collision impact force, if the compression amount of the elastic connecting member under the action of the side collision impact force exceeds the preset compression range, the battery body 1 deviates to one side of the vehicle body 6, and the battery body 1 can slide down along the fitting surface of the sliding guide block guiding surface and the guide member guiding surface to one side of the vehicle body 6. At this time, the gap between the battery body 1 and the collision side increases, reducing the impact risk and effectively avoiding risks such as fire and leakage; and, because the battery body slides down to one side of the vehicle body, the center of gravity of the battery body 1 moves down, and the gap between the battery body 1 and the ground decreases, so the center of mass of the whole vehicle is reduced, reducing the rollover risk of the vehicle.

[0046] In one embodiment, as Figures 1 to 6 shown, the elastic connecting member includes a first elastic member 2 and a second elastic member 3, and the mounting bracket 4 includes a front mounting beam 41 and a rear mounting beam 42; the first elastic member 2 abuts against one end of the battery body 1 close to the left side of the vehicle body 6, and the second elastic member 3 abuts against one end of the battery body 1 close to the right side of the vehicle body 6; wherein, the first elastic member 2 can be provided with more than two, and more than two first elastic members 2 are arranged at intervals (preferably evenly arranged) at the left end of the battery body 1; similarly, the second elastic member 3 can be provided with more than two, and more than two second elastic members 3 are arranged at intervals (preferably evenly arranged) at the right end of the battery body 1; it can be understood that the first elastic member 2 and the second elastic member 3 can be pressure springs made of materials such as 65Mn steel and stainless steel. In the present invention, after the first elastic member 2 and the second elastic member 3 abut against the battery body 1, they are both in a compressed state, and the first elastic member 2 and the second elastic member 3 are symmetrically arranged at the left and right ends of the battery body 1, so that the pressures generated when the first elastic member 2 and the second elastic member 3 at the left and right ends of the battery body 1 are in a compressed state are equal, thereby maintaining the stable installation state of the battery body 1. At the same time, the materials of the front mounting beam 41 and the rear mounting beam 42 are preferably metal materials such as high-strength steel and aluminum alloy, and in the present invention, the outer shapes of the front mounting beam 41 and the rear mounting beam 42 can be set according to requirements (such as the shape of the vehicle body 6 of the vehicle), for example, the outer shape can be set to be long strip-shaped. Preferably, the front mounting beam 41 and the rear mounting beam 42 are symmetrically arranged at the front and rear ends of the battery body 1.

[0047] As Figure 5 and Figure 6As shown, the sliding guide block includes a first sliding guide block 11 disposed on one side of the battery body 1 near the front end of the vehicle body 6, and a second sliding guide block 12 disposed on one side of the battery body 1 near the rear end of the vehicle body 6; the guiding member includes a first guiding member 411 disposed on the front mounting beam 41 and fitting with the first sliding guide block 11, and a second guiding member 412 disposed on the rear mounting beam 42 and fitting with the second sliding guide block 12.

[0048] The sliding guide block abutting surface includes a first abutting surface 111 disposed on the first sliding guide block 11, and a third abutting surface (not shown in the figure) disposed on the second sliding guide block 12; the guiding member abutting surface includes a second abutting surface 4111 disposed on the first guiding member 411, and a fourth abutting surface (not shown in the figure) disposed on the second guiding member 421; when the first abutting surface 111 abuts against the second abutting surface 4111, the third abutting surface abuts against the fourth abutting surface; preferably, both the first sliding guide block 11 and the second sliding guide block 12 are in a positive V shape, and the large ends of the positive V-shaped first sliding guide block 11 and the positive V-shaped second sliding guide block 12 face upward, the small ends face downward, and the top surface of the small end of the positive V-shaped first sliding guide block 11 facing downward has a first abutting surface 111 that can abut against the first guiding member 411. The top surface of the small end of the positive V-shaped second sliding guide block 12 facing downward has a second abutting surface 4111 that can abut against the second guiding member 421. Moreover, the second abutting surface 4111 is arranged parallel to the first abutting surface 111, and the third abutting surface is arranged parallel to the fourth abutting surface.

[0049] The sliding guide block guiding surface includes a first left guiding surface 112, a first right guiding surface 113, a third left guiding surface (not shown in the figure), and a third right guiding surface (not shown in the figure); the first left guiding surface 112 and the first right guiding surface 113 are disposed on the first sliding guide block 11 and on opposite sides of the first abutting surface 111; the third left guiding surface and the third right guiding surface are disposed on the second sliding guide block and on opposite sides of the third abutting surface; the guiding member guiding surface includes a second left guiding surface 4112, a second right guiding surface 4113, a fourth left guiding surface (not shown in the figure), and a fourth right guiding surface (not shown in the figure); the second left guiding surface 4112 and the second right guiding surface 4113 are disposed on the first guiding member 411 and on opposite sides of the second abutting surface 4111; the fourth left guiding surface and the fourth right guiding surface are disposed on the second guiding member and on opposite sides of the fourth abutting surface. Understandably, the second right guiding surface 4113 is arranged parallel to the first left guiding surface 112, the second left guiding surface 4112 is arranged parallel to the first right guiding surface 113; the fourth right guiding surface is arranged parallel to the third left guiding surface, and the fourth left guiding surface is arranged parallel to the third right guiding surface.

[0050] In the present invention, the battery body 1 can slide left and right relative to the vehicle body 6. Among them, both the first elastic member 2 and the second elastic member 3 are compressed and abutted between the left and right sides of the battery body 1 and the vehicle body 6. In the above embodiment, the following process can be achieved:

[0051] When the battery body 1 is not subjected to a side impact force or the side impact force received is less than the preset threshold, and the compression amounts of the first elastic member 2 and the second elastic member 3 under the action of the side impact force do not exceed the preset compression range, the first abutting surface 111 abuts against the second abutting surface 4111 (at this time, the width of the first abutting surface 111 in the left-right direction is equal to the preset compression amount range, so that when the compression amounts of the first elastic member 2 and the second elastic member 3 do not exceed the preset compression amount range, the battery body 1 does not move downward, but moves horizontally in a direction parallel to the first abutting surface 111; when the compression amount of one of the first elastic member 2 and the second elastic member 3 exceeds the preset compression amount range, the battery body 1 moves downward to the lower side), the third abutting surface abuts against the fourth abutting surface (at this time, the width of the third abutting surface in the left-right direction is equal to the preset compression amount range). At this time, there is no up-and-down sliding between the battery body 1 and the front mounting beam 41 and the rear mounting beam 42 on the mounting bracket 4. The battery body 1 is basically located at the middle position of the vehicle, and there is no up-and-down sliding between the first sliding guide block 11 and the first guide member 411, and there is no up-and-down sliding between the second sliding guide block 12 and the second guide member 421. The battery body 1 does not move downward, and the center of gravity of the battery body 1 remains unchanged. In this way, the side impact force will not cause damage such as battery short circuit and leakage to the battery body 1 (at this time, the battery body 1 moves less, and the side impact force basically has no impact on the vehicle battery structure of the present invention).

[0052] When the side impact force received at one end of the battery body 1 facing the left side of the vehicle body is greater than or equal to the preset threshold, the battery body 1 deflects to the right side of the vehicle body 6, the first left guiding surface 112 fits with the second right guiding surface 4113, the third left guiding surface fits with the fourth right guiding surface, and the battery body 1 slides down along the second right guiding surface 4113 and the fourth right guiding surface to the right side of the vehicle body. When the side impact force received at one end of the battery body 1 facing the right side of the vehicle body is greater than or equal to the preset threshold, the battery body 1 deflects to the left side of the vehicle body 6, the first right guiding surface 113 fits with the second left guiding surface 4112, the third right guiding surface fits with the fourth left guiding surface, and the battery body 1 slides down along the second left guiding surface 4112 and the fourth left guiding surface to the left side of the vehicle body 6.

[0053] That is, when the side collision impact force received by the battery body 1 is greater than or equal to the preset threshold, the compression amounts of the first elastic member 2 and the second elastic member 3 exceed the preset compression range. Among them, when the battery body 1 slides downward to the left under the side collision impact force at one end facing the right side of the vehicle body 6, the compression amount of the first elastic member 2 at one end of the battery body 1 facing the left side of the vehicle body 6 increases to be greater than the maximum value of the preset compression range, and the compression amount of the second elastic member 3 at one end of the battery body 1 facing the right side of the vehicle body 6 decreases to be less than the minimum value of the preset compression range. At this time, the gap between the battery body 1 and the position on the right side of the vehicle receiving the side collision impact force increases. In this way, the risk of the battery being collided can be reduced, thereby effectively avoiding risks such as battery short circuit, fire, and leakage in the vehicle battery structure; and, due to the downward movement of the battery body 1 to the left, the center of gravity of the battery body 1 moves downward, and the gap between the battery body 1 and the ground decreases. Therefore, the center of mass of the whole vehicle is reduced, and further the risk of vehicle rollover is reduced. Similarly, when the battery body 1 slides downward to the right under the side collision impact force on the left side, its movement process can refer to the movement process of sliding downward to the left under the side collision impact force on the right side described above, and will not be elaborated here.

[0054] In one embodiment, as Figures 1 to 4 shown, the mounting bracket 4 further includes a left mounting beam 43 and a right mounting beam 44; the left end of the front mounting beam 41 is connected to the front end of the left mounting beam 43, and the right end of the front mounting beam 41 is connected to the front end of the right mounting beam 44; the left end of the rear mounting beam 42 is connected to the rear end of the left mounting beam 43, and the right end of the rear mounting beam 42 is connected to the rear end of the right mounting beam 44; an accommodation space for mounting the battery body 1 is formed among the front mounting beam 41, the rear mounting beam 42, the left mounting beam 43, and the right mounting beam 44; the first elastic member 2 is located between the left mounting beam 43 and the battery body 1, and the second elastic member 3 is located between the right mounting beam 44 and the battery body 1. Understandably, the materials of the left mounting beam 43 and the right mounting beam 44 are preferably metal materials such as high-strength steel and aluminum alloy, and their thicknesses can be set according to requirements, such as 2-5 mm. In this embodiment, as Figure 2 shown, the gap distances between the left mounting beam 43 and the right mounting beam 44 and the battery body 1 can be set according to requirements, as long as it can ensure that the battery body 1 slides within an appropriate range and does not fall off the vehicle body 6.

[0055] In one embodiment, referring to Figures 1 to 10, the first guiding member 411 includes a first guide rail bracket 4114 and a first bump 4115 disposed on the front mounting beam 41. The first guide rail bracket 4114 is fixedly mounted on the first bump 4115. The second abutting surface 4111, the second left guiding surface 4112, and the second right guiding surface 4113 are all located on the first guide rail bracket 4114. Among them, the material of the first guide rail bracket 4114 is preferably high-strength steel or the like, and it is in a thin strip shape. As a preference, the first guide rail bracket 4114 is provided with reinforcing ribs for strengthening the strength of the guide rail bracket. Figure 9 The first guide rail bracket 4114 shown in Figure 7 can be first mounted on the first bump 4115 shown in Figure 9 such that the inverted V of the first guide rail bracket 4114 in

[0056] fits perfectly with the first protrusion on the front mounting beam 41, and the two are welded together. After that, the first sliding guide block 11 is aligned and mounted with the first guide rail bracket 4114 and the first bump 4115, so that the first abutting surface 111 of the first sliding guide block 11 can slide left and right on the second abutting surface 4111 of the first guide rail bracket 4114 (thereby driving the battery to slide left and right), while maintaining the stability of the battery body 1. Figures 1 to 10 Furthermore, referring to Figure 7

[0057] , the second guiding member 421 includes a second guide rail bracket 4211 (having the same shape as the first guide rail bracket 4114 and symmetrically arranged) and a second bump (having the same shape as the first bump 4115 and symmetrically arranged) disposed on the front mounting beam 41. The second guide rail bracket 4211 is fixedly mounted on the second bump. The fourth abutting surface, the fourth left guiding surface, and the fourth right guiding surface are all located on the second guide rail bracket 4211. Among them, the material of the second guide rail bracket 4211 is preferably high-strength steel or the like, and it is in a thin strip shape. As a preference, the second guide rail bracket 4211 is provided with reinforcing ribs for strengthening the strength of the guide rail bracket. The second guide rail bracket 4211 can be first mounted on the second bump shown in Figure 7 such that the inverted V of the second guide rail bracket 4211 fits perfectly with the second protrusion on the front mounting beam 41, and the two are welded together. After that, the second sliding guide blockIn one embodiment, a first limiting portion 412 for limiting the sliding height of the first sliding guide block 11 of the battery body 1 from sliding down to one side of the vehicle body 6 is further provided on the front mounting beam 41, and a second limiting portion 422 for limiting the sliding height of the second sliding guide block 12 of the battery body from sliding down to one side of the vehicle body is further provided on the rear mounting beam 42. When the battery body 1 slides down relative to the mounting bracket 4 to one side of the vehicle body 6, the limiting portion can limit the sliding height of the battery body 1, so that the battery body 1 can descend to an ideal height to avoid tipping over. Preferably, as Figure 1 、 Figure 4 and Figure 7 shown, the first limiting portion 412 is a first flanging provided on the first guide rail bracket 4114, and the first flanging is parallel to the first abutting surface 111; the second limiting portion 422 is a second flanging provided on the second guide rail bracket 4211, and the second flanging is parallel to the second abutting surface 4111. In this embodiment, when the first abutting surface 111 descends to abut against the first flanging and the second abutting surface 4111 abuts against the second flanging, since the first flanging is parallel to the first abutting surface 111 and the second flanging is parallel to the second abutting surface 4111, and the fitting area between two parallel surfaces is larger, the state transition after the battery body 1 descends will be more stable, reducing the possibility of sliding out and tipping over.

[0058] In one embodiment, as Figure 2 、 Figure 5 and Figure 6 shown, two or more of the first sliding guide blocks 11 are arranged at intervals at the front end of the battery body 1, and two or more of the first guiding members 411 equal in number to the first sliding guide blocks 11 are arranged at intervals on the front mounting beam 41; further, two or more of the second sliding guide blocks 12 are arranged at intervals at the rear end of the battery body 1, and two or more of the second guiding members 421 equal in number to the second sliding guide blocks 12 are arranged at intervals on the rear mounting beam 42. Preferably, the first sliding guide blocks 11 provided on the lower side of the front end of the battery body 1 and the second sliding guide blocks 12 provided on the lower side of the rear end of the battery body 1 are symmetrical. Multiple sliding guide blocks (including the first sliding guide blocks 11 and the second sliding guide blocks 12) arranged at intervals (the interval distance is preferably equal) can make the moving process of the battery body 1 more stable.

[0059] In one embodiment, as Figure 7 and Figure 8As shown, on one side of the front mounting beam 41 where the first guiding member 411 is provided, there are also a first mounting platform 413 and a second mounting platform 414. The first mounting platform 413 is located at one end of the first guiding member 411 close to the left side of the vehicle body 6, and the second mounting platform 414 is located at one end of the first guiding member 411 close to the right side of the vehicle body 6. On one side of the rear mounting beam 42 where the second guiding member 421 is provided, there are also a third mounting platform and a fourth mounting platform. The third mounting platform is located at one end of the second guiding member 421 close to the left side of the vehicle body 6, and the fourth mounting platform is located at one end of the second guiding member 421 close to the right side of the vehicle body 6. Understandably, the front mounting beam 41 and the rear mounting beam 42 are symmetrically arranged, the first mounting platform 413 is symmetrical with the third mounting platform, and the second mounting platform 414 is symmetrical with the fourth mounting platform. The first sliding guide block 11 extends between the first mounting platform 413 and the second mounting platform 414 and fits with the first guiding member 411. One side of the battery body 1 close to the front end of the vehicle body is in contact with the first mounting platform 413 and the second mounting platform 414. The second sliding guide block 12 extends between the third mounting platform and the fourth mounting platform and fits with the second guiding member 421. One side of the battery body 1 close to the rear end of the vehicle body is in contact with the third mounting platform and the fourth mounting platform. Understandably, the heights of the first mounting platform 413 and the second mounting platform 414 (similarly for the third mounting platform and the fourth mounting platform) can be set according to requirements, for example, set to Figure 7 the height passing through the entire front mounting beam 41. In this embodiment, Figure 8 the limiting groove formed between the first mounting platform 413 and the second mounting platform 414 in Figure 8 (and similarly the limiting groove formed between the third mounting platform and the fourth mounting platform) can limit the movement of the battery body 1 in the left-right direction. And the rear end faces of the first mounting platform 413 and the second mounting platform 414 can abut against the front end of the battery body 1 (and the front end faces of the third mounting platform and the fourth mounting platform abut against the rear end of the battery body 1), thereby enabling the battery body 1 to slide left and right in contact with the first mounting platform 413, the second mounting platform 414, the third mounting platform, and the fourth mounting platform, making its left-right sliding process stable.

[0060] In one embodiment, as Figure 8As shown, mounting holes 45 are each provided on the first mounting table 413, the second mounting table 414, the third mounting table, and the fourth mounting table. The mounting frame 4 is connected to the vehicle body 6 through the mounting holes 45. Preferably, parameters such as the position, aperture diameter, or length of the mounting holes 45 can be set according to requirements. For example, it can be set that the mounting holes 45 are located at the exact middle position of the mounting tables (including the first mounting table 413, the second mounting table 414, the third mounting table, and the fourth mounting table) and penetrate through the entire mounting table. The mounting frame 4 can be connected to the vehicle body 6 by bolts screwed into the mounting holes 45. Understandably, the mounting holes 45 can also be set at other positions on the mounting frame 4 other than the mounting tables, such as on the left mounting beam 43 and the right mounting beam 44, or at other positions on the front mounting beam 41 and the rear mounting beam 42.

[0061] In one embodiment, the vehicle battery structure further includes a top buffer spring 5 connected between the battery body 1 and the vehicle body 6. Among them, the material of the top buffer spring 5 is preferably a metal material such as 65Mn steel or stainless steel. The top buffer spring 5 abuts against the vehicle body 6 and is in a compressed state. The top buffer spring 5 can be provided in multiple numbers, and it is preferably arranged at equal intervals.

[0062] For the convenience of understanding the present invention, the following examples are given for illustration:

[0063] When a traffic accident occurs and the right side of the vehicle body is subjected to a leftward side impact force F, if the side impact force F is small (less than the preset threshold Ft):

[0064] At this time, the force condition of a single first sliding guide block 11 (similarly for a single second sliding guide block 12) is as follows:

[0065] The first sliding guide block 11 receives a leftward side impact force Fc = F / n;

[0066] The downward elastic force Fs of the top buffer spring 5 on the first sliding guide block 11 = kx * 4 / n (where 4 represents the number of top buffer springs 5);

[0067] The downward battery gravity FG = mg / n;

[0068] The rightward frictional force Fμ;

[0069] The rightward elastic force Fbl of the first elastic member 2 on the first sliding guide block 11;

[0070] The leftward elastic force Fbr of the second elastic member 3 on the first sliding guide block 11;

[0071] Among them:

[0072] k is the stiffness of a single top buffer spring 5 (k affects the up-and-down bouncing and left-and-right swaying of the battery body 1. If k is too small, the battery is prone to swaying, resulting in NVH problems. If k is too large, the battery body 1 cannot move left and right. Therefore, k needs to be set according to the structure of the vehicle body 6 so that it can move left and right smoothly without NVH problems);

[0073] x is the compression amount of a single top buffer spring 5;

[0074] n is the total number after adding the first sliding guide block 11 and the second sliding guide block 12;

[0075] m is the weight of the battery body 1;

[0076] g is the acceleration due to gravity;

[0077] μ is the coefficient of sliding friction;

[0078] F is the lateral collision impact force to the left received by the first sliding guide block 11.

[0079] Furthermore, through force analysis, the force threshold for the first sliding guide block 11 to receive a lateral collision impact force (when the lateral collision impact force received by the first sliding guide block 11 reaches the force threshold, the first sliding guide block 11 switches from the horizontal translation state to the state of moving downward to the side) is:

[0080] Ft = |Fbr - Fbl| + Fμ = k1 * S1 + (Fs * n + FG * n) * μ

[0081] Among them, k1 is the total stiffness of the first elastic member 2 (k1 is the key to affecting the left-and-right swaying of the battery body 1. If k1 is too small, the battery is prone to swaying. If k1 is too large, the battery body 1 cannot move left and right. k1 needs to be set according to the structure of the vehicle body 6); S1 is the left-and-right sliding distance of the battery body 1.

[0082] As can be seen from the above, when the lateral impact force F to the left received by the first sliding guide block 11 is less than or equal to Ft (the force threshold Ft), since the vehicle body 6, the left mounting beam 43, the right mounting beam 44, etc. will deform and absorb energy, and at the same time the first elastic member 2 and the second elastic member 3 expand and contract laterally to relieve the impact, the sliding distance S1 of the battery body 1 to the left is less than S (S is the width in the left-right direction of the second abutting surface 4111 on the first guide rail bracket 4114 or the fourth abutting surface on the second guide rail bracket 4211. S determines the stability of the battery body 1. If S is too small, it is easy for the battery body 1 to drop due to left-right sliding; if S is too large, the battery body 1 cannot drop to lower the center of mass. Therefore, S also needs to be set according to the above requirements), that is, the displacement of the battery body 1 to the left does not exceed the width in the left-right direction of the first abutting surface 111 of the first guide rail bracket 4114 (that is, at this time, the compression amounts of the first elastic member 2 and the second elastic member 3 still belong to the preset compression range). At this time, the impact of the lateral impact force on the battery body 1 is small, the damage to the vehicle is also small, and it will not roll over.

[0083] When the lateral impact force F to the left received by the first sliding guide block 11 is greater than Ft, at this time the sliding distance S1 of the battery body 1 to the left is greater than S. That is, the displacement of the battery body 1 to the left has exceeded the width in the left-right direction of the first abutting surface 111 of the first guide rail bracket 4114 (that is, at this time, the compression amount of the first elastic member 2 has exceeded the maximum value of the preset compression range). At this time, the first right guiding surface 113 of the first sliding guide block 11 fits with the second left guiding surface 4112 of the first guiding surface, and the battery body 1 will slide left and downward along the second left guiding surface 4112 until the first abutting surface 111 abuts against the bottommost first limiting portion 412; furthermore, while increasing the distance between the battery body 1 and the collision surface on the right side of the vehicle, the center of mass of the battery body 1 is lowered, thereby lowering the center of mass of the whole vehicle and avoiding vehicle rollover. In this embodiment, the height h of the first guide rail bracket 4114, that is, the maximum height that the battery body 1 can descend should be less than or equal to the left-right sliding distance S1 of the battery body 1. If S1 is less than or equal to h, it may cause the battery body 1 to be exposed when receiving a lateral impact force, directly causing the battery body 1 to contact the collision object and resulting in secondary damage to the battery body 1.

[0084] On the other hand, an embodiment of the present invention further provides a vehicle, which includes the above vehicle battery structure.

[0085] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle battery structure, characterized in that, It includes a battery body, an elastic connecting member, and a mounting bracket for connecting to the vehicle body. The elastic connecting member abuts the battery body between the left and right sides of the vehicle body. Sliding guide blocks are provided on both sides of the battery body near the front and rear ends of the vehicle body. Guide members are provided on the mounting bracket and are fitted with the sliding guide blocks. The sliding guide blocks are provided with a sliding guide block abutting surface and a sliding guide block guiding surface. The guide members are provided with a guide member abutting surface and a guide member guiding surface. When the vehicle is not subjected to a side impact force, or when the compression amount of the elastic connecting member under the side impact force does not exceed the preset compression range when the vehicle is subjected to a side impact force, the battery body abuts on the mounting bracket through the sliding guide block abutting surface and the guide member abutting surface. When the vehicle is subjected to a side impact force, if the compression amount of the elastic connecting member under the side impact force exceeds the preset compression range, the battery body deflects to one side of the vehicle body, and the battery body can slide down to one side of the vehicle body along the fitting surface of the sliding guide block guiding surface and the guide member guiding surface.

2. The vehicle battery structure according to claim 1, characterized in that, The elastic connecting member includes a first elastic member and a second elastic member. The mounting bracket includes a front mounting beam and a rear mounting beam. The first elastic member abuts one end of the battery body near the left side of the vehicle body, and the second elastic member abuts one end of the battery body near the right side of the vehicle body. The sliding guide blocks include a first sliding guide block provided on one side of the battery body near the front end of the vehicle body, and a second sliding guide block provided on one side of the battery body near the rear end of the vehicle body. The guide members include a first guide member provided on the front mounting beam and fitted with the first sliding guide block, and a second guide member provided on the rear mounting beam and fitted with the second sliding guide block. The sliding guide block abutting surface includes a first abutting surface provided on the first sliding guide block and a third abutting surface provided on the second sliding guide block. The guide member abutting surface includes a second abutting surface provided on the first guide member and a fourth abutting surface provided on the second guide member. When the first abutting surface abuts the second abutting surface, the third abutting surface abuts the fourth abutting surface. The sliding guide block guiding surface includes a first left guiding surface, a first right guiding surface, a third left guiding surface, and a third right guiding surface. The first left guiding surface and the first right guiding surface are provided on the first sliding guide block and are located on opposite sides of the first abutting surface. The third left guiding surface and the third right guiding surface are provided on the second sliding guide block and are located on opposite sides of the third abutting surface. The guide member guiding surface includes a second left guiding surface, a second right guiding surface, a fourth left guiding surface, and a fourth right guiding surface. The second left guiding surface and the second right guiding surface are provided on the first guide member and are located on opposite sides of the second abutting surface. The fourth left guiding surface and the fourth right guiding surface are provided on the second guide member and are located on opposite sides of the fourth abutting surface. When the battery body shifts to the right side of the vehicle body, the first left guiding surface fits with the second right guiding surface, the third left guiding surface fits with the fourth right guiding surface, and the battery body slides down along the second right guiding surface and the fourth right guiding surface to the right side of the vehicle body; when the battery body shifts to the left side of the vehicle body, the first right guiding surface fits with the second left guiding surface, the third right guiding surface fits with the fourth left guiding surface, and the battery body slides down along the second left guiding surface and the fourth left guiding surface to the left side of the vehicle body.

3. The vehicle battery structure according to claim 2, wherein, The mounting bracket further includes a left mounting beam and a right mounting beam; the left end of the front mounting beam is connected to the front end of the left mounting beam, and the right end of the front mounting beam is connected to the front end of the right mounting beam; the left end of the rear mounting beam is connected to the rear end of the left mounting beam, and the right end of the rear mounting beam is connected to the rear end of the right mounting beam; a receiving space for mounting the battery body is formed among the front mounting beam, the rear mounting beam, the left mounting beam and the right mounting beam; the first elastic member is located between the left mounting beam and the battery body, and the second elastic member is located between the right mounting beam and the battery body.

4. The vehicle battery structure according to claim 2, characterized in that, The first guiding member includes a first guide rail bracket and a first convex block provided on the front mounting beam, the first guide rail bracket is fixedly mounted on the first convex block, and the second abutting surface, the second left guiding surface and the second right guiding surface are all located on the first guide rail bracket; and / or The second guiding member includes a second guide rail bracket and a second convex block provided on the front mounting beam, the second guide rail bracket is fixedly mounted on the second convex block, and the fourth abutting surface, the fourth left guiding surface and the fourth right guiding surface are all located on the second guide rail bracket.

5. The vehicle battery structure according to claim 4, wherein The front mounting beam is further provided with a first limiting portion for limiting the sliding height of the first sliding guide block of the battery body from sliding down to one side of the vehicle body, and the rear mounting beam is further provided with a second limiting portion for limiting the sliding height of the second sliding guide block of the battery body from sliding down to one side of the vehicle body.

6. The vehicle battery structure according to claim 5, wherein, The first limiting portion is a first flanging provided on the first guide rail bracket, and the first flanging is parallel to the first abutting surface; The second limiting portion is a second flanging provided on the second guide rail bracket, and the second flanging is parallel to the second abutting surface.

7. The vehicle battery structure according to claim 2, characterized in that, Two or more of the first sliding guide blocks are arranged at intervals at the front end of the battery body, and two or more of the first guiding members equal in number to the first sliding guide blocks are arranged at intervals on the front mounting beam; and / or two or more of the second sliding guide blocks are arranged at intervals at the rear end of the battery body, and two or more of the second guiding members equal in number to the second sliding guide blocks are arranged at intervals on the rear mounting beam.

8. The vehicle battery structure according to claim 2, wherein On one side of the front mounting beam where the first guiding member is provided, a first mounting table and a second mounting table are further provided, the first mounting table is located at one end of the first guiding member close to the left side of the vehicle body, and the second mounting table is located at one end of the first guiding member close to the right side of the vehicle body; On one side of the second guiding member provided on the rear mounting beam, there are also a third mounting table and a fourth mounting table. The third mounting table is located at one end of the second guiding member close to the left side of the vehicle body, and the fourth mounting table is located at one end of the second guiding member close to the right side of the vehicle body; The first sliding guide block extends between the first mounting table and the second mounting table and fits with the first guiding member. One side of the battery body close to the front end of the vehicle body fits with the first mounting table and the second mounting table; the second sliding guide block extends between the third mounting table and the fourth mounting table and fits with the second guiding member. One side of the battery body close to the rear end of the vehicle body fits with the third mounting table and the fourth mounting table.

9. The vehicle battery structure according to claim 1, characterized in that, The vehicle battery structure further includes a top buffer spring connected between the battery body and the vehicle body.

10. A vehicle, characterized in that, It includes the vehicle battery structure according to any one of claims 1 to 9.

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