Mounting assembly of battery pack and automobile

Abstract

The utility model provides a battery pack installation assembly and automobile, the battery pack installation assembly comprises a connecting support and a sliding support, the connecting support is used for supporting the battery pack, the sliding support is used for being connected with the battery pack, one of the connecting support and the sliding support is provided with a sliding groove, and the sliding groove is used for being connected with the battery pack. And at least part of the other one can slide in the sliding chute along the extension direction of the sliding chute. According to the utility model, the sliding groove is formed in the connecting bracket, and the battery pack is arranged in the sliding groove in a sliding manner, so that the battery pack can slightly slide back and forth along with the movement of a vehicle in the running process of the vehicle, and then is buffered by the elastic buffer piece, thereby slightly avoiding a bumping object, avoiding the collision of hard materials and reducing the probability of fire disasters.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile battery pack installation, in particular to an installation component of a battery pack and an automobile. Background Art

[0002] With the rapid development of electric vehicles, battery packs are the core components of electric vehicles, and their installation components have a significant impact on the performance, safety and service life of the battery packs.

[0003] The existing connection between the battery pack and the chassis is usually bolted or welded. This connection is equivalent to directly connecting the battery pack to the body of the car, which poses a great safety hazard. When the battery pack is bumped, there is no buffer and space for slight movement. Under a slightly larger impact force, the battery pack may be damaged and cause a fire. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of the present utility model is to provide a battery pack installation assembly and a vehicle, so as to solve the problem in the prior art that the battery pack is rigidly connected to the vehicle body, the battery pack has no buffer space for movement, and the battery pack may be damaged and cause fire under a slightly larger impact force.

[0005] To achieve the above-mentioned purpose and other related purposes, on the one hand, the utility model provides a battery pack installation assembly, including a connecting bracket and a sliding bracket, the connecting bracket is used to support the battery pack, the sliding bracket is used to connect to the battery pack, one of the connecting bracket and the sliding bracket is provided with a slide groove, and the other is at least partially able to slide in the slide groove along the extension direction of the slide groove.

[0006] Furthermore, the slide groove is arranged on the connecting bracket, and the connecting bracket includes a connecting plate extending along the length direction of the slide groove, the cross-section of the connecting plate is L-shaped, and the two arms of the L-shape are respectively a first plate portion and a second plate portion connected to the first plate portion, and the slide groove is arranged on the side of the second plate portion away from the first plate portion.

[0007] Furthermore, the first plate portion is provided with a plurality of first connection holes, and the edge of the second plate portion away from the first plate portion is provided with a plurality of connection ears in sequence along the length direction of the slide slot, and each of the connection ears is provided with a second connection hole.

[0008] Furthermore, fixing members are connected to both ends of the slide groove for blocking the battery pack in the slide groove, and elastic buffer members are respectively arranged at both ends of the slide groove.

[0009] Furthermore, the elastic buffer is arranged on a side of the fixing member facing the sliding groove.

[0010] Furthermore, the elastic buffer is a coil spring.

[0011] Furthermore, the fixing member includes a body, the body is provided with a mounting hole, and the mounting hole is used to connect the body to the vehicle body; the body is provided with a groove on one side facing the elastic buffer, and one end of the elastic buffer is located in the groove.

[0012] Furthermore, a sensor is installed in the fixing member, and the sensor is used to detect the pressure borne by the elastic buffer member.

[0013] Furthermore, the slide groove is arranged on the connecting bracket, and the sliding bracket includes a slider and a support arm. The slider slides in the slide groove, one end of the support arm is connected to the slider, and the other end of the support arm is used to connect to the battery pack.

[0014] On the other hand, the present patent provides a car including a body and a battery pack, the body being provided with a mounting assembly for the battery pack as described in any one of claims 1 to 4, the body having a longitudinal reinforcing beam arranged along the length direction of the body, the connecting bracket being installed on the longitudinal reinforcing beam, the slide groove being arranged along the length direction of the body, the battery pack being connected to the sliding bracket and sliding in the slide groove together with the sliding bracket.

[0015] As described above, the utility model has the following beneficial effects: by arranging a slide groove on the connecting bracket or the sliding bracket, the battery pack can slide relative to the connecting bracket after being connected to the sliding bracket 4. During the driving of the vehicle, the battery pack can slide slightly forward and backward with the movement of the vehicle. When a relatively minor bump occurs, the battery pack can move slightly in the direction away from the bumping object under the action of the force of the bumping object, thereby slightly avoiding the bumping object and reducing the probability of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the connecting bracket provided by the utility model;

[0017] Figure 2 It is a schematic diagram of the structure after the battery pack frame is connected to the connecting bracket;

[0018] Figure 3 for Figure 2 A cross-sectional view of

[0019] Figure 4 Schematic diagram of the structure of the connecting bracket installed on the car.

[0020] Part Number Description

[0021] 1-connecting bracket, 11-first plate portion, 12-second plate portion, 13-slide groove, 14-first connecting hole, 15-connecting ear, 16-second connecting hole, 2-fixing member, 21-mounting hole, 22-groove, 3-coil spring, 4-sliding bracket, 41-sliding block, 42-support arm, 5-longitudinal reinforcement beam, 6-front floor assembly. DETAILED DESCRIPTION

[0022] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0024] In order to describe the present invention in detail, first, a battery pack installation assembly and a vehicle of the present invention are specifically described below.

[0025] On the one hand, if Figures 1 to 3 As shown, the present patent provides a battery pack installation assembly, including a connecting bracket 1 and a sliding bracket 4, wherein the connecting bracket 1 is used to install the battery pack; the connecting bracket 1 is installed on the vehicle body. The sliding bracket 4 is used to connect with the battery pack, and a slide groove 13 is provided on one of the connecting bracket 1 and the sliding bracket 4, and the other can at least partially slide in the slide groove 13 along the extension direction of the slide groove 13. If the slide groove 13 is provided on the connecting bracket 1, the sliding bracket 4 can slide in the slide groove, or if the slide groove 13 is provided on the sliding bracket 4, the sliding bracket 4 can drive the slide groove to slide relative to the connecting bracket 1. At this time, the slide groove 13 is located on the side of the sliding bracket 4, and can be consistent with the length of the sliding bracket 4 or less than the length of the sliding bracket 4.

[0026] When the connecting bracket 1 and the sliding bracket 4 slide relative to each other, the friction coefficient between the two can be increased, so that the friction between the two is relatively large, and the friction is used for buffering during the relative sliding. Of course, elastic buffers can also be provided at both ends of the slide groove 13, and the elastic buffers are used to buffer the hard collision between the battery pack and the vehicle body.

[0027] In this embodiment, the slide groove 13 is provided on the connecting bracket 1. The connecting bracket 1 is long and extends along the length direction of the vehicle body, so that the slide groove 13 can be provided on the inner side of the connecting bracket 1 along its length direction. The slide groove 13 is used for the battery pack to be slidably connected to the connecting bracket 1. After the battery pack is installed on the slide groove 13, the battery pack can slide slightly forward or backward along the length direction of the vehicle body. It is not that the position between the battery pack and the connecting bracket 1 cannot be moved at all.

[0028] By setting a slide groove 13 on the connecting bracket 1 along the length direction of the vehicle body, the battery pack is arranged along the length direction of the vehicle body. The connecting bracket 1 is installed on both sides of the vehicle body. In this way, the entire battery pack can slide slightly forward and backward when encountering a not very large collision, which is equivalent to having a little avoidance space. Compared with the existing technology, when the collision force is not very large, it can reduce damage and avoid fire.

[0029] Among them, the connecting bracket 1 includes a connecting plate extending along the length direction of the slide groove 13, the cross-section of the connecting plate is L-shaped, and the two arms of the L-shape are respectively a first plate portion 11 and a second plate portion 12 bent and connected to the first plate portion 11. The connecting bracket 1 of this embodiment is installed on the longitudinal reinforcement beam 5 on the front floor assembly 6, so the shape of the first plate portion 11 and the second plate portion 12 after connection matches the shape of the longitudinal reinforcement beam 5.

[0030] The first plate portion 11 is provided with a plurality of first connection holes 14 which are evenly distributed on the first plate portion 11 , which is equivalent to connecting the first connection holes 14 of the first plate portion 11 to the longitudinal reinforcing beam 5 by bolts or plug welding at the top of the connecting bracket 1 .

[0031] A plurality of connecting ears 15 are sequentially provided on the edge of the second plate portion 12 away from the first plate portion 11 along the length direction of the slide slot 13 , and each connecting ear 15 is provided with a second connecting hole 16 . In this embodiment, three connecting ears 15 are provided on the second plate portion 12 .

[0032] The connecting bracket 1 is connected to the longitudinal reinforcing beam 5 through the first connecting hole 14 and the second connecting hole 16, that is, the connecting bracket 1 is connected to the longitudinal reinforcing beam 5 from two directions, and the battery pack is installed at the bottom of the front floor assembly 6, such as Figure 4 The orientation shown is rotated 180°.

[0033] The existing battery pack is installed by directly mounting the battery pack on the front floor assembly 6 by bolts. The front floor assembly 6 is relatively thinner than the longitudinal reinforcement beam 5, so this connection method is not very strong. The connection bracket 1 of the present invention is connected to the longitudinal reinforcement beam 5. The strength of the longitudinal reinforcement beam 5 is higher than that of the front floor assembly 6. Therefore, the connection method of the present invention is more reliable than the existing one.

[0034] When connected, the first plate portion 11 is connected to the bottom of the longitudinal reinforcing beam 5, and the connecting ear 15 is connected to the inner side of the longitudinal reinforcing beam 5. The connecting bracket 1 is connected to the longitudinal reinforcing beam 5 from two directions, and the connecting bracket 1 is equivalent to half surrounding the longitudinal reinforcing beam 5, so the strength is relatively high.

[0035] The slide groove 13 is arranged on the side surface of the second plate portion 12 away from the first plate portion 11 , and the slide grooves 13 on both sides are arranged opposite to each other to slide and install the battery pack.

[0036] In order to limit the position of the battery pack and prevent the battery pack from sliding out of the slide slot 13 , fixing members 2 are installed at both ends of the slide slot 13 , and the fixing members 2 fix the battery pack in the slide slot 13 .

[0037] In order to prevent the battery pack from colliding with the connecting bracket 1 when the battery pack sways back and forth in the slide slot 13 and causing damage, an elastic buffer is provided between the fixing member 2 and the slider 41 to buffer the forward and backward movement of the battery pack. The elastic buffer is provided on the side of the fixing member 2 facing the slide slot.

[0038] The function of the elastic buffer is to buffer the force of the battery pack moving forward and backward, so the elastic buffer can be rubber, foam plastic, spring or spring, and a damper can also be used for buffering. The elastic buffer of this embodiment is a coil spring 3, one end of the coil spring 3 abuts against the slider 41, and the other end abuts against the fixing member 2.

[0039] In order to facilitate the connection, disassembly and replacement of the fixing member 2, the coil spring 3 of the present patent is only in contact with the fixing member 2 but not actually connected.

[0040] The fixing member 2 comprises a body, and a mounting hole 21 is provided on the body, and the mounting hole 21 is used to connect the body to the vehicle body. The mounting holes 21 are arranged at the four corners of the body, and the body is connected to the vehicle body by bolts, which is convenient for disassembly and installation.

[0041] A cylindrical groove 22 is provided on one side of the body facing the coil spring 3, and one end of the coil spring 3 is located in the groove 22. In this way, the coil spring 3 can be contacted and connected with the fixing member 2, and the coil spring 3 can also be limited.

[0042] This embodiment mainly controls the battery pack in the X direction along the length of the vehicle body. A vertical elastic buffer can also be set in the slide groove 13 to buffer the Z direction. Of course, the depth of the slide groove 13 can also be set deeper, so that the fixing member 2 and the elastic buffer can also be installed in the Y direction to buffer the Y direction. Through such a setting, buffering can be achieved in the three directions of X, Y and Z, thereby reducing damage to the battery pack.

[0043] In order to accurately measure the magnitude of the collision force of the battery pack, a sensor is installed in the fixing part 2, and the sensor is connected to the controller. The sensor is used to detect the pressure borne by the elastic buffer. The controller is set with a preset collision force in each speed range. When the collision force detected by the sensor is less than the preset force, the battery pack is used normally. When the collision force detected is greater than the preset force, the controller disconnects the battery pack to prevent fire.

[0044] The sliding bracket 4 includes a slider 41 and a support arm 42. The slider 41 slides in the slide slot 13. One end of the support arm 42 is connected to the slider 41, and the other end of the support arm 42 passes through the opening of the slide slot 13. The support arm 42 is used to connect to the battery pack.

[0045] A limiting edge is provided on the edge of the opening of the slide slot 13 along the length direction of the slide slot 13 , and the limiting edge is used to block the slider 41 in the slide slot 13 .

[0046] Some existing battery packs are installed on the front floor assembly 6, and some are installed in the rear floor assembly or the trunk. The installation components of the battery pack of this patent are applicable to the above three situations as long as the position of the vehicle body design is appropriate.

[0047] This embodiment mainly buffers the collision force in the X direction. Figure 3 As shown, in order to prevent the battery pack from moving in the Y and Z directions, there is a limit groove above and below the slide groove 13, and a corresponding limit protrusion is also set above and below the slider 41 of the battery pack, so as to prevent the battery pack from shaking left and right.

[0048] On the other hand, this patent also provides a car, including a body and a battery pack, the body is provided with the above-mentioned battery pack installation assembly, the body has a longitudinal reinforcing beam 5 arranged along the length direction of the body, the connecting bracket 1 is installed on the longitudinal reinforcing beam 5, the slide groove is arranged along the length direction of the body, the battery pack is connected to the sliding bracket 4, and slides in the slide groove 13 together with the sliding bracket 4.

[0049] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A battery pack mounting assembly, characterized in that: The invention comprises a connecting bracket (1) and a sliding bracket (4), wherein the connecting bracket (1) is used to support a battery pack, and the sliding bracket (4) is used to connect to the battery pack, and one of the connecting bracket (1) and the sliding bracket (4) is provided with a slide groove (13), and the other is at least partially able to slide in the slide groove (13) along the extension direction of the slide groove (13).

2. The battery pack mounting assembly according to claim 1, characterized in that: The slide groove (13) is arranged on the connecting bracket (1), and the connecting bracket (1) comprises a connecting plate extending along the length direction of the slide groove (13), the cross section of the connecting plate is L-shaped, and the two arms of the L-shape are respectively a first plate portion (11) and a second plate portion (12) connected to the first plate portion (11), and the slide groove (13) is arranged on the side of the second plate portion (12) away from the first plate portion (11).

3. The battery pack mounting assembly according to claim 2, characterized in that: The first plate portion (11) is provided with a plurality of first connection holes (14), and the edge of the second plate portion (12) away from the first plate portion (11) is provided with a plurality of connection ears (15) in sequence along the length direction of the slide groove (13), and each of the connection ears (15) is provided with a second connection hole (16).

4. The battery pack installation assembly according to claim 1, 2 or 3, characterized in that: Both ends of the slide groove (13) are connected with fixing members (2) for blocking the battery pack in the slide groove (13), and both ends of the slide groove (13) are respectively provided with elastic buffer members.

5. The battery pack mounting assembly according to claim 4, characterized in that: The elastic buffer is arranged on a side of the fixing member (2) facing the sliding groove.

6. The battery pack mounting assembly according to claim 4, characterized in that: The elastic buffer is a coil spring (3).

7. The battery pack mounting assembly according to claim 4, characterized in that: The fixing member (2) comprises a body, the body is provided with a mounting hole (21), and the mounting hole (21) is used to connect the body to a vehicle body; the body is provided with a groove (22) on a side facing the elastic buffer member, and one end of the elastic buffer member is located in the groove (22).

8. The battery pack mounting assembly according to claim 5, 6 or 7, characterized in that: A sensor is installed in the fixing member (2), and the sensor is used to detect the pressure borne by the elastic buffer member.

9. The battery pack mounting assembly according to claim 1, characterized in that: The slide groove (13) is arranged on the connecting bracket (1), and the sliding bracket (4) comprises a slider (41) and a support arm (42). The slider (41) slides in the slide groove (13), one end of the support arm (42) is connected to the slider (41), and the other end of the support arm (42) is used for connecting to a battery pack.

10. An automobile, characterized in that: The invention comprises a vehicle body and a battery pack, wherein the vehicle body is provided with a mounting assembly for the battery pack as claimed in any one of claims 1 to 9, the vehicle body has a longitudinal reinforcing beam (5) arranged along the length direction of the vehicle body, the connecting bracket (1) is installed on the longitudinal reinforcing beam (5), the slide groove (13) is arranged along the length direction of the vehicle body, the battery pack is connected to the sliding bracket (4), and can slide in the slide groove (13) together with the sliding bracket (4).

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