Battery pack mounting bracket assembly and automobile

Abstract

The utility model relates to a battery pack mounting bracket assembly and an automobile. The battery pack mounting bracket assembly comprises a reinforcing bracket and a mounting bracket, the reinforcing support is located on the side, away from the vehicle body floor, of the mounting support and connected with the mounting support. The reinforcing support is used for being connected with a battery pack assembly. The installation support is provided with a first installation part and a second installation part, the first installation part is used for being connected with a vehicle body floor, and the second installation part is used for being connected with an installation beam on the vehicle body floor. According to the battery pack mounting bracket assembly, the battery pack assembly is connected with the vehicle body floor through the combination of the reinforcing bracket and the mounting bracket, and the reinforcing bracket and the mounting bracket are integrated, so that the occupancy degree of the internal arrangement space of the vehicle body is optimized. And the mounting bracket is fixedly connected with the lower vehicle body through the first mounting part and the second mounting part, so that the mounting bracket also has the advantage of high connecting structure strength, the mounting requirement of the battery pack assembly can be well met, and the quality of the vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile bodies, and in particular to a battery pack mounting bracket assembly and an automobile. Background Art

[0002] The battery pack assembly is the energy core of electric vehicles. The battery pack assembly is large in size and heavy in weight. At present, the battery pack assembly is generally installed on the vehicle body floor, and during installation, the structural design and shape trend of the vehicle body floor must be combined to achieve the fixed installation of the battery pack assembly. To this end, some installation points in the battery pack assembly need to be fixed on the vehicle body floor through mounting brackets so that the battery pack assembly is in a horizontal position after installation.

[0003] The mounting bracket of the battery pack assembly in the prior art has the problem of low structural strength at the connection point after the mounting bracket is connected to the vehicle body floor, which cannot well meet the installation requirements of the battery pack assembly and affects the improvement of the quality of the vehicle. Summary of the invention

[0004] One of the purposes of the utility model is to provide a battery pack mounting bracket assembly to solve the problem of low structural strength at the connection between the mounting bracket and the vehicle body floor in the prior art; the second purpose is to provide a car.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A battery pack mounting bracket assembly comprises a reinforcing bracket and a mounting bracket; the reinforcing bracket is located on a side of the mounting bracket facing away from a vehicle body floor and is connected to the mounting bracket, and the reinforcing bracket is used to be connected to the battery pack assembly; the mounting bracket has a first mounting portion and a second mounting portion, the first mounting portion is used to be connected to the vehicle body floor, and the second mounting portion is used to be connected to a mounting beam on the vehicle body floor.

[0007] According to the above technical means, the battery pack mounting bracket assembly connects the battery pack assembly to the vehicle body floor through the combination of the reinforcement bracket and the mounting bracket, and integrates the reinforcement bracket and the mounting bracket to optimize the occupation of the internal layout space of the vehicle body. The mounting bracket is fixedly connected to the lower body through the first mounting part and the second mounting part, and also has the advantage of high strength of the connection structure, which can well meet the installation requirements of the battery pack assembly and improve the quality of the car.

[0008] Furthermore, the mounting bracket includes a bracket top wall and two bracket side walls; in a first direction, one side of the bracket top wall is connected to one of the bracket side walls, and the other opposite side of the bracket top wall is connected to another of the bracket side walls, and a first flange is provided at the end of the bracket side wall away from the bracket top wall; the first mounting portion is the first flange.

[0009] According to the above technical means, the mounting bracket is connected to the vehicle body floor via the first flange, which has the advantage of a firm connection.

[0010] Further, in the second direction, one end of the top wall of the bracket is used to connect to one of the mounting beams, and the other opposite end of the top wall of the bracket is used to connect to another mounting beam; the second mounting portion includes two ends of the top wall of the bracket in the second direction; wherein, there is an angle between the first direction and the second direction.

[0011] According to the above technical means, the connection between one end of the top wall of the bracket and the mounting beam is a surface-to-surface connection, and the connection between the other end of the top wall of the bracket and the mounting beam is also a surface-to-surface connection. By designing the matching surfaces of the first end and the second end, the manufacturing accuracy of the mounting bracket is easier to control.

[0012] Furthermore, in the second direction, both ends of the side wall of the bracket are provided with second flanges, and the second flanges are used to be connected to the side walls of the mounting beam; the second mounting portion also includes the second flange.

[0013] According to the above technical means, the mounting bracket is provided with four bracket side walls in total. The mounting bracket is connected to the side walls of the mounting beam through the four second flanges, thereby improving the connection strength between the mounting bracket and the mounting beam.

[0014] Furthermore, the reinforcement bracket includes a reinforcement top wall and two reinforcement side walls; in a first direction, one side of the reinforcement top wall is connected to one of the reinforcement side walls, and the other opposite side of the reinforcement top wall is connected to another reinforcement side wall; the reinforcement top wall is used to connect to the battery pack assembly, and the reinforcement side walls are connected to the bracket side walls of the mounting bracket.

[0015] According to the above-mentioned technical means, the side wall of the reinforcement is connected to the side wall of the mounting bracket. During the trial production stage of the reinforcement bracket and the mounting bracket, the welding fixture positioning between the side wall of the reinforcement and the bracket can be adjusted to achieve the Z-direction installation height adjustment of the reinforcement bracket and the mounting bracket, which greatly reduces the debugging difficulty of the battery pack mounting bracket assembly and improves the debugging efficiency.

[0016] Furthermore, a first step surface and a second step surface are provided on the top wall of the reinforcement, the first step surface and the second step surface form a step-like structure, the first step surface is away from the mounting bracket relative to the second step surface, and the first step surface is used to connect with the battery pack assembly.

[0017] According to the above technical means, the first step surface and the second step surface form a step-like structure, which can reinforce the shape of the top wall of the reinforcement, effectively control the rebound amount during the forming process of the reinforcement bracket, and improve the structural strength of the reinforcement bracket.

[0018] Further, in the second direction, a third flange is provided at one end of the top wall of the reinforcement, and the third flange is connected to the bracket top wall of the mounting bracket.

[0019] According to the above technical means, the reinforcing bracket is connected to the top wall of the mounting bracket through the top wall of the reinforcing member, and the reinforcing bracket is also connected to the side wall of the mounting bracket through the side wall of the reinforcing member. The reinforcing bracket and the mounting bracket have the advantage of high connection strength.

[0020] Furthermore, the reinforcing bracket is at least one of a galvanized sheet and a zinc-aluminum-magnesium sheet.

[0021] According to the above technical means, the material selection of the reinforcement bracket and the mounting bracket can be separated. The reinforcement bracket is a key component that provides the fitting surface and mounting point connected to the battery pack assembly. The reinforcement bracket can be made of a material with better anti-corrosion performance. The mounting bracket is not connected to the battery pack assembly, and the mounting bracket can be made of a relatively low-priced material. The battery pack mounting bracket assembly can achieve cost separation through the reinforcement bracket and the mounting bracket, which greatly improves the corrosion resistance of the reinforcement bracket while reducing costs.

[0022] Furthermore, the battery pack mounting bracket assembly also includes a nut, and the reinforcing bracket is provided with a mounting hole; the nut is arranged between the reinforcing bracket and the mounting bracket, the nut is connected to the reinforcing bracket, and is arranged corresponding to the mounting hole.

[0023] According to the above technical means, the mounting hole provides an assembly position for the installation of the battery pack assembly. Bolts and other fasteners are inserted into nuts after passing through the mounting hole. After the bolts and other fasteners are connected to the nuts, the battery pack assembly is fixedly connected to the battery pack mounting bracket assembly, which has the advantage of simple and convenient connection.

[0024] A car comprises a body, wherein the body is provided with the above-mentioned battery pack mounting bracket assembly.

[0025] Beneficial effects of the utility model:

[0026] (1) The battery pack mounting bracket assembly of the utility model includes three parts: a reinforcing bracket, a mounting bracket nut, and the battery pack mounting bracket assembly has the advantages of small parts, simple connection between parts, small volume after the three parts are assembled, and small layout space.

[0027] (2) The reinforcing bracket and the mounting bracket of the utility model have a small forming depth, and the reinforcing bracket and the mounting bracket also have the advantages of low forming difficulty and long service life of the forming mold.

[0028] (3) The battery pack mounting bracket assembly of the utility model includes a reinforcing bracket and a mounting bracket, which can realize the splitting of material selection. The reinforcing bracket can be selected from a material with better anti-corrosion performance. The mounting bracket is not connected to the battery pack assembly, and the mounting bracket can be selected from a relatively low-priced material. The battery pack mounting bracket assembly reduces the cost while greatly improving the corrosion resistance of the reinforcing bracket.

[0029] (4) The mounting bracket of the utility model is fixedly connected to the lower vehicle body through the first mounting part and the second mounting part, and also has the advantage of high strength of the connection structure, which can well meet the installation requirements of the battery pack assembly and improve the quality of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the assembly of the battery pack mounting bracket assembly of the utility model installed on the lower vehicle body;

[0031] Figure 2 It is a structural schematic diagram of the overall exploded view of the battery pack mounting bracket of the utility model;

[0032] Figure 3 It is a structural schematic diagram of the mounting bracket of the utility model;

[0033] Figure 4 It is a structural schematic diagram of the reinforcing bracket of the utility model.

[0034] Among them, 1-reinforcement bracket; 2-mounting bracket; 3-bracket top wall; 4-bracket side wall; 5-first flange; 6-second flange; 7-reinforcement member top wall; 8-reinforcement member side wall; 9-first step surface; 10-second step surface; 11-third flange; 12-nut; 13-mounting hole; 14-battery pack assembly; 15-body floor; 16-mounting beam; 17-first characteristic portion; 18-second characteristic portion; 19-third characteristic portion; 20-first positioning hole; 21-second positioning hole; 22-reinforcement rib; 23-avoidance portion; 24-battery pack mounting bracket assembly; 25-battery pack support frame; 26-first end portion; 27-second end portion. DETAILED DESCRIPTION

[0035] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0037] The present application embodiment provides a battery pack mounting bracket assembly 24, referring to Figure 1 , which shows a schematic diagram of the assembly of the battery pack mounting bracket assembly 24 mounted on the lower body. One end of the battery pack mounting bracket assembly 24 is connected to the lower body of the car, and the other end of the battery pack mounting bracket assembly 24 is connected to the battery pack assembly 14, so that the battery pack assembly 14 is fixed to the lower body. Among them, the battery pack assembly 14 is the energy core of the electric vehicle, and the battery pack assembly 14 needs to be firmly and securely connected to the lower body of the car.

[0038] In the present application, refer to Figure 1 As shown, the battery pack mounting bracket assembly 24 includes a reinforcing bracket 1 and a mounting bracket 2; the reinforcing bracket 1 is located on the side of the mounting bracket 2 away from the vehicle body floor 15 and is connected to the mounting bracket 2, and the reinforcing bracket 1 is used to connect to the battery pack assembly 14; the mounting bracket 2 has a first mounting portion and a second mounting portion, the first mounting portion is used to connect to the vehicle body floor 15, and the second mounting portion is used to connect to the mounting beam 16 on the vehicle body floor 15.

[0039] The mounting beam 16 is connected between the vehicle body floor 15 and other equipment to connect the other equipment to the vehicle body floor 15, or the mounting beam 16 is used to increase the connection strength between the vehicle body floor 15 and other equipment. The present application embodiment does not specifically limit other equipment, and it is selected according to the use requirements. For example, the mounting beam 16 is used to install the engine. In this case, the two mounting beams 16 are respectively the rear section of the engine compartment side beam (located at Figure 1 The mounting beam 16 on the left side of the center) and the rear mounting plate assembly of the engine bracket (located at Figure 1 Mounting beam 16 on the right side of the center).

[0040] In the battery pack mounting bracket assembly 24, the reinforcement bracket 1 is located on the side of the mounting bracket 2 away from the vehicle body floor 15 and is connected to the mounting bracket 2. The reinforcement top wall 7 of the reinforcement bracket 1 away from the mounting bracket 2 is used to connect with the battery pack assembly 14; the mounting bracket 2 is connected to the vehicle body floor 15 through the first mounting portion, and the mounting bracket 2 is also connected to the mounting beam 16 through the second mounting portion. The battery pack mounting bracket assembly 24 connects the battery pack assembly 14 to the vehicle body floor 15 through the combination of the reinforcement bracket 1 and the mounting bracket 2, and integrates the reinforcement bracket 1 and the mounting bracket 2, thereby optimizing the occupation of the internal layout space of the vehicle body. The mounting bracket 2 is fixedly connected to the lower body through the first mounting portion and the second mounting portion, and also has the advantage of high strength of the connection structure, which can well meet the installation requirements of the battery pack assembly 14 and improve the quality of the vehicle.

[0041] Moreover, the battery pack mounting bracket assembly 24 includes the structure of a reinforcing bracket 1 and a mounting bracket 2. During the trial production stage of the reinforcing bracket 1 and the mounting bracket 2, the welding clamp positioning between the reinforcing bracket 1 and the mounting bracket 2 can be adjusted to achieve the installation height adjustment of the reinforcing bracket 1 and the mounting bracket 2 in the Z direction, thereby greatly reducing the debugging difficulty of the battery pack mounting bracket assembly 24 and improving the debugging efficiency.

[0042] In the present application, refer to Figure 3 As shown, the mounting bracket 2 includes a bracket top wall 3 and two bracket side walls 4; in a first direction A, one side of the bracket top wall 3 is connected to one bracket side wall 4, and the other side of the bracket top wall 3 is connected to another bracket side wall 4, and a first flange 5 is provided at the end of the bracket side wall 4 away from the bracket top wall 3; the first mounting portion is the first flange 5.

[0043] Reference Figure 3 As shown, the mounting bracket 2 is provided with a bracket side wall 4 in the positive direction of the first direction A, and the mounting bracket 2 is provided with another bracket side wall 4 in the negative direction of the first direction A. The ends of the two bracket side walls 4 away from the bracket top wall 3 are both provided with a first flange 5, and the first flange 5 is used to be connected to the vehicle body floor 15, and the first flange 5 has the advantage of being firmly connected to the vehicle body floor 15.

[0044] In the present application, refer to Figure 3As shown, the mounting bracket 2 is provided with two first characteristic parts 17 and two second characteristic parts 18 on the first flange 5 in the positive direction of the first direction A, and the mounting bracket 2 is provided with two first characteristic parts 17 and two second characteristic parts 18 on the first flange 5 in the negative direction of the first direction A. The mounting bracket 2 is welded to the vehicle body floor 15 through four first characteristic parts 17 and four second characteristic parts 18. The embodiment of the present application does not specifically limit the welding method between the mounting bracket 2 and the vehicle body floor 15. For example, the first characteristic part 17 and the second characteristic part 18 are welded to the vehicle body floor 15 through electric welding or double welding.

[0045] In the present application, refer to Figure 3 As shown, in the second direction B, a third characteristic portion 19 is provided in the middle of the first flange 5 , and the third characteristic portion 19 is used to provide an electrophoresis liquid channel to ensure sufficient electrophoresis inside the mounting bracket 2 and avoid the risk of rust.

[0046] In the present application, refer to Figure 3 As shown, in the second direction B, one end of the bracket top wall 3 is used to connect with one mounting beam 16, and the other opposite end of the bracket top wall 3 is used to connect with another mounting beam 16; the second mounting portion includes two ends of the bracket top wall 3 in the second direction B; wherein an angle is formed between the first direction A and the second direction B. The embodiment of the present application does not specifically limit the angle, for example, the first direction A and the second direction B are perpendicular to each other.

[0047] The end of the bracket top wall 3 in the positive direction of the second direction B is the first end 26, and the bracket top wall 3 is connected to one mounting beam 16 through the first end 26; the end of the bracket top wall 3 in the negative direction of the second direction B is the second end 27, and the bracket top wall 3 is connected to another mounting beam 16 through the second end 27. The connection between the bracket top wall 3 and the mounting beam 16 through the first end 26 is a surface-to-surface connection, and the connection between the bracket top wall 3 and the mounting beam 16 through the second end 27 is also a surface-to-surface connection. By designing the matching surfaces of the first end 26 and the second end 27, the manufacturing accuracy of the mounting bracket 2 is easier to control.

[0048] The embodiment of the present application does not specifically limit the connection method between the bracket top wall 3 and the mounting beam 16. For example, the first end 26 and the second end 27 are welded to the mounting beam 16 by electric welding or double welding.

[0049] In the embodiment of the present application, a first positioning hole 20 and a second positioning hole 21 are further provided on the bracket top wall 3. The first positioning hole 20 and the second positioning hole 21 are both used for positioning. The first positioning hole 20 and the second positioning hole 21 provide a more accurate positioning reference to improve the manufacturing accuracy of the mounting bracket 2. In order to distinguish the first positioning hole 20 and the second positioning hole 21, the diameters of the first positioning hole 20 and the second positioning hole 21 can be set to be different. For example, the first positioning hole 20 is designed to have a diameter of 28 mm, and the second positioning hole 21 is designed to have a diameter of 20 mm. The first positioning hole 20 and the second positioning hole 21 can also be used for positioning in different processes of the mounting bracket 2. For example, the second positioning hole 21 is used for positioning during the installation process of the mounting bracket 2, and the first positioning hole 20 is used for positioning during the processing process of the mounting bracket 2.

[0050] In the present application, refer to Figure 3 As shown, in the second direction B, both ends of the bracket side wall 4 are provided with a second flange 6, and the second flange 6 is used to connect with the side wall of the mounting beam 16; the second mounting portion also includes a second flange 6.

[0051] Reference Figure 3 As shown, the bracket side wall 4 is provided with a second flange 6 at the end of the positive direction of the second direction B, and the bracket side wall 4 is provided with a second flange 6 at the end of the negative direction of the second direction B, and the mounting bracket 2 is provided with four bracket side walls 4. The mounting bracket 2 is connected to the side wall of the mounting beam 16 through the four second flanges 6, thereby improving the connection strength between the mounting bracket 2 and the mounting beam 16. The embodiment of the present application does not specifically limit the connection method between the bracket side wall 4 and the mounting beam 16. For example, the bracket side wall 4 is welded to the side wall of the mounting beam 16 by electric welding or double welding.

[0052] In the present application, refer to Figure 3 As shown, the mounting bracket 2 is provided with reinforcing ribs 22 in the middle of both sides of the first direction A, and the reinforcing ribs 22 are located on the bracket top wall 3 and the bracket side wall 4. The reinforcing ribs 22 can effectively improve the strength of the mounting bracket 2 and control the rebound of the mounting bracket 2.

[0053] In the present application, refer to Figure 3 As shown, the mounting bracket 2 is designed to be Π-shaped and can be formed through multiple flanging processes. The mounting bracket 2 has the advantages of simple structure and small springback. The mounting bracket 2 is relatively low in height and has the advantage of low manufacturing difficulty.

[0054] In the present application, refer to Figure 4As shown, the reinforcement bracket 1 includes a reinforcement top wall 7 and two reinforcement side walls 8; in the first direction A, one side of the reinforcement top wall 7 is connected to one reinforcement side wall 8, and the other side of the reinforcement top wall 7 is connected to another reinforcement side wall 8; the reinforcement top wall 7 is used to connect to the battery pack assembly 14, and the reinforcement side wall 8 is connected to the bracket side wall 4 of the mounting bracket 2.

[0055] Specifically, refer to Figures 2 to 4 As shown, the reinforcing member side wall 8 of the reinforcing bracket 1 in the positive direction of the first direction A is connected to the bracket side wall 4 of the mounting bracket 2 in the positive direction of the first direction A, and the reinforcing member side wall 8 of the reinforcing bracket 1 in the negative direction of the first direction A is connected to the bracket side wall 4 of the mounting bracket 2 in the negative direction of the first direction A. The connection method of the reinforcing member side wall 8 and the bracket side wall 4 of the mounting bracket 2 is not specifically limited, for example, the reinforcing member side wall 8 and the bracket side wall 4 are connected and fixed by spot welding.

[0056] The reinforcement side wall 8 is connected to the bracket side wall 4 of the mounting bracket 2. During the trial production stage of the reinforcement bracket 1 and the mounting bracket 2, the welding fixture positioning between the reinforcement side wall 8 and the bracket side wall 4 can be adjusted to achieve the installation height adjustment of the reinforcement bracket 1 and the mounting bracket 2 in the Z direction, which greatly reduces the debugging difficulty of the battery pack mounting bracket assembly 24 and improves the debugging efficiency.

[0057] In the present application, refer to Figure 4 As shown, a first step surface 9 and a second step surface 10 are provided on the top wall 7 of the reinforcement. The first step surface 9 and the second step surface 10 form a step-like structure. The first step surface 9 is away from the mounting bracket 2 relative to the second step surface 10. The first step surface 9 is used to connect with the battery pack assembly 14.

[0058] Among them, the first step surface 9 and the second step surface 10 form a step-like structure, which can reinforce the shape of the top wall 7 of the reinforcement member, effectively control the amount of springback during the forming process of the reinforcement bracket 1, and improve the structural strength of the reinforcement bracket 1. When the reinforcement bracket 1 is connected to the battery pack assembly 14, the first step surface 9 is connected to the battery pack assembly 14, and the connection between the reinforcement bracket 1 and the battery pack assembly 14 is surface-to-surface contact.

[0059] In the present application, refer to Figure 4 As shown, in the second direction B, one end of the reinforcement top wall 7 is provided with a third flange 11 , and the third flange 11 is connected to the bracket top wall 3 of the mounting bracket 2 .

[0060] The reinforcing bracket 1 is connected to the bracket top wall 3 of the mounting bracket 2 via the reinforcing member top wall 7, and the reinforcing bracket 1 is also connected to the bracket side wall 4 of the mounting bracket 2 via the reinforcing member side wall 8. The reinforcing bracket 1 and the mounting bracket 2 have the advantage of high connection strength.

[0061] In the present application, refer to Figure 4 As shown, in the second direction B, an avoidance portion 23 is further provided in the middle of one end of the top wall 7 of the reinforcement member. The setting of the avoidance portion 23 can reduce the number of welding layers of the reinforcement bracket at the avoidance portion 23, thereby avoiding that the number of welding layers of the reinforcement bracket at the avoidance portion 23 is too large and affects the welding effect.

[0062] In the present application, refer to Figure 4 As shown, the reinforcing bracket 1 is designed in an N-shape, and has the advantage of a simple structure. The reinforcing bracket 1 controls the rebound by compressing the drop (i.e., height difference) of its own parts. The rebound of the reinforcing bracket 1 is small, and the reinforcing bracket 1 can control its contribution to the rebound of the battery pack mounting bracket assembly 24. Moreover, the height of the reinforcing bracket 1 is relatively low, and it also has the advantage of low manufacturing difficulty.

[0063] In the present application, refer to Figure 4 As shown, the volume of the reinforcement bracket 1 is relatively small, and the reinforcement bracket 1 effectively reduces the space occupied by the battery pack mounting bracket assembly 24 in the interior of the vehicle body.

[0064] In the embodiment of the present application, the reinforcing bracket 1 is at least one of a galvanized sheet and a zinc-aluminum-magnesium sheet.

[0065] The battery pack mounting bracket assembly 24 includes a reinforcing bracket 1 and a mounting bracket 2. The reinforcing bracket 1 is connected to the battery pack assembly 14, and the mounting bracket 2 is connected to the vehicle body floor 15 and the mounting beam 16. The battery pack mounting bracket assembly 24 connects the battery pack assembly 14 to the vehicle body floor 15 by combining the reinforcing bracket 1 and the mounting bracket 2. The material selection of the reinforcing bracket 1 and the mounting bracket 2 can be separated. The reinforcing bracket 1 is a key component that provides a fitting surface and a mounting point connected to the battery pack assembly 14. The reinforcing bracket 1 can select a material with better anti-corrosion performance. The mounting bracket 2 is not connected to the battery pack assembly 14, and the mounting bracket 2 can select a relatively low-priced material. For example, the reinforcing bracket 1 selects at least one of a galvanized plate and a zinc-aluminum-magnesium plate; for another example, the mounting bracket 2 is a steel plate. The battery pack mounting bracket assembly 24 of the embodiment of the present application can achieve cost separation through the reinforcing bracket 1 and the mounting bracket 2, which greatly improves the corrosion resistance of the reinforcing bracket 1 while reducing the cost.

[0066] In the embodiment of the present application, the battery pack mounting bracket assembly 24 also includes a nut 12, and the reinforcing bracket 1 is provided with a mounting hole 13; the nut 12 is arranged between the reinforcing bracket 1 and the mounting bracket 2, the nut 12 is connected to the reinforcing bracket 1, and is arranged corresponding to the mounting hole 13, and the mounting hole 13 provides an assembly position for the installation of the battery pack assembly 14.

[0067] It is understandable that the embodiment of the present application does not specifically limit the type of the nut 12, and it only needs to meet the requirements of connecting the battery pack mounting bracket assembly 24 and the battery pack assembly 14. For example, the nut 12 is a hexagonal flange projection welding nut, and the bolts and other fasteners connected to the nut 12 are hexagonal flange bolts.

[0068] It is understandable that the embodiment of the present application does not specifically limit the diameter of the mounting hole 13, and it only needs to meet the requirements of connecting the mounting hole 13 and the battery pack assembly 14. For example, the diameter of the mounting hole 13 is 13 mm.

[0069] In the embodiment of the present application, the battery pack mounting bracket assembly 24 includes a reinforcing bracket 1 and a mounting bracket 2, and the reinforcing bracket 1 is buckled on the mounting bracket 2. Figures 2 to 4 As shown, the reinforcing member side wall 8 of the reinforcing bracket 1 in the positive direction of the first direction A is connected to the bracket side wall 4 of the mounting bracket 2 in the positive direction of the first direction A, the reinforcing member side wall 8 of the reinforcing bracket 1 in the negative direction of the first direction A is connected to the bracket side wall 4 of the mounting bracket 2 in the negative direction of the first direction A, and the third flange 11 of the reinforcing bracket 1 in the positive direction of the second direction B is connected to the bracket top wall 3 of the mounting bracket 2 in the positive direction of the second direction B. When the reinforcing bracket 1 and the mounting bracket 2 are connected, the height of the battery pack mounting bracket assembly 24 can be adjusted by adjusting the connection position of the reinforcing bracket 1 and the mounting bracket 2 in the height direction, so that the battery pack mounting bracket assembly 24 is suitable for connecting between the battery pack assembly 14 and the vehicle body floor 15, and the battery pack assembly 14 after installation is in a horizontal posture as a whole.

[0070] Reference Figure 1 and Figure 3 As shown, the first end 26 of the mounting bracket 2 is Figure 1 The left side mounting beam 16 is connected to the surface of the vehicle body floor 15, and the second end 27 of the mounting bracket 2 is connected to the Figure 1 The right side mounting beam 16 is connected to the surface of the vehicle body floor 15 away from the vehicle body floor. Figure 1 The side wall of the left mounting beam 16 is connected, and the two second flanges 6 of the mounting bracket 2 in the negative direction of the second direction B are connected to the Figure 1 The side wall of the right side mounting beam 16 is connected.

[0071] Further references Figure 1 , Figure 2 and Figure 4As shown, the nut 12 is connected to the reinforcing bracket 1, and the nut 12 is arranged between the reinforcing bracket 1 and the mounting bracket 2. A battery pack support frame 25 is provided on the side of the battery pack assembly 14, and a bracket through hole is provided on the battery pack support frame 25. Bolts and other fasteners are inserted into the nut 12 after passing through the bracket through hole and the mounting hole 13 in sequence. After the bolts and other fasteners are connected to the nut 12, the battery pack assembly 14 is fixedly connected to the battery pack mounting bracket assembly 24.

[0072] It is understandable that the embodiment of the present application does not specifically limit the connection method of each component, as long as the connection strength and processing requirements are met. For example, the battery pack mounting bracket assembly 24 and the mounting beam 16 are fixedly connected by spot welding or double welding; the nut 12 and the inner side of the reinforcement top wall 7 are fixedly connected by projection welding. The reinforcement bracket 1 and the mounting bracket 2 are fixedly connected by resistance spot welding or double welding.

[0073] The battery pack mounting bracket assembly 24 includes three parts: a reinforcing bracket 1, a mounting bracket 2 and a nut 12. The battery pack mounting bracket assembly 24 has the advantages of small parts, simple connection between parts, small volume after the three parts, and small layout space. Moreover, the forming depth of the reinforcing bracket 1 and the mounting bracket 2 is small, and the reinforcing bracket 1 and the mounting bracket 2 also have the advantages of low forming difficulty and long service life of the forming mold. Both the reinforcing bracket 1 and the mounting bracket 2 have the advantages of small rebound, so that the rebound of the battery pack mounting bracket assembly 24 is small. The battery pack mounting bracket assembly 24 includes a reinforcing bracket 1 and a mounting bracket 2, which can realize the splitting of material selection. The reinforcing bracket 1 can choose a material with better anti-corrosion performance. The mounting bracket 2 is not connected to the battery pack assembly 14. The mounting bracket 2 can choose a relatively low-priced material. The battery pack mounting bracket assembly 24 reduces the cost while greatly improving the corrosion resistance of the reinforcing bracket 1. The mounting bracket 2 is fixedly connected to the lower body through the first mounting part and the second mounting part. It also has the advantage of high strength of the connection structure, which can well meet the installation requirements of the battery pack assembly 14 and improve the quality of the car.

[0074] The battery pack mounting bracket assembly 24 has the advantages of high structural strength and high strength of the connection structure fixedly connected to the lower vehicle body. Therefore, the battery pack mounting bracket assembly 24 is suitable for the fixed installation requirements of a larger battery pack assembly 14. Moreover, the battery pack mounting bracket assembly 24 also has the advantages of occupying a small layout space and having a large height adjustable space.

[0075] The battery pack mounting bracket assembly 24 of the embodiment of the present application can be applicable to the installation of various battery pack assemblies 14. For example, the battery pack mounting bracket assembly 24 is used to fix and install the battery pack assembly of an external plug-in hybrid vehicle on a vehicle.

[0076] This embodiment also provides a car, including a car body, on which the above-mentioned battery pack mounting bracket assembly 24 is provided. Since the battery pack mounting bracket assembly 24 has the advantages of high structural strength and high strength of the connection structure fixedly connected to the lower car body, the car is provided with the above-mentioned battery pack mounting bracket assembly 24, which can significantly improve the quality of the car.

[0077] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A battery pack mounting bracket assembly, characterized in that: The battery pack mounting bracket assembly comprises a reinforcing bracket (1) and a mounting bracket (2); the reinforcing bracket (1) is located on a side of the mounting bracket (2) away from the vehicle body floor (15) and is connected to the mounting bracket (2); the reinforcing bracket (1) is used to be connected to the battery pack assembly (14); The mounting bracket (2) comprises a first mounting portion and a second mounting portion, wherein the first mounting portion is used to be connected to the vehicle body floor (15), and the second mounting portion is used to be connected to a mounting beam (16) on the vehicle body floor (15).

2. The battery pack mounting bracket assembly according to claim 1, characterized in that: The mounting bracket (2) comprises a bracket top wall (3) and two bracket side walls (4); in a first direction, one side of the bracket top wall (3) is connected to one of the bracket side walls (4), and the other side of the bracket top wall (3) is connected to the other bracket side wall (4); the end of the bracket side wall (4) away from the bracket top wall (3) is provided with a first flange (5); the first mounting portion is the first flange (5).

3. The battery pack mounting bracket assembly according to claim 2, characterized in that: In the second direction, one end of the bracket top wall (3) is used to connect to one of the mounting beams (16), and the other opposite end of the bracket top wall (3) is used to connect to another of the mounting beams (16); the second mounting portion includes two ends of the bracket top wall (3) in the second direction; wherein an angle is formed between the first direction and the second direction.

4. The battery pack mounting bracket assembly according to claim 2, characterized in that: In the second direction, both ends of the bracket side wall (4) are provided with second flanges (6), and the second flanges (6) are used to connect with the side walls of the mounting beam (16); the second mounting portion also includes the second flange (6).

5. The battery pack mounting bracket assembly according to claim 1, characterized in that: The reinforcing bracket (1) comprises a reinforcing member top wall (7) and two reinforcing member side walls (8); in a first direction, one side of the reinforcing member top wall (7) is connected to one of the reinforcing member side walls (8), and the other side of the reinforcing member top wall (7) is connected to another of the reinforcing member side walls (8); the reinforcing member top wall (7) is used to be connected to the battery pack assembly (14), and the reinforcing member side walls (8) are connected to the bracket side walls (4) of the mounting bracket (2).

6. The battery pack mounting bracket assembly according to claim 5, characterized in that: A first step surface (9) and a second step surface (10) are provided on the top wall (7) of the reinforcement, wherein the first step surface (9) and the second step surface (10) form a step-shaped structure, wherein the first step surface (9) is away from the mounting bracket (2) relative to the second step surface (10), and the first step surface (9) is used to connect with the battery pack assembly (14).

7. The battery pack mounting bracket assembly according to claim 5, characterized in that: In the second direction, one end of the reinforcement top wall (7) is provided with a third flange (11), and the third flange (11) is connected to the bracket top wall (3) of the mounting bracket (2).

8. The battery pack mounting bracket assembly according to claim 1, characterized in that: The reinforcing bracket (1) is at least one of a galvanized sheet and a zinc-aluminum-magnesium sheet.

9. The battery pack mounting bracket assembly according to claim 1, characterized in that: The battery pack mounting bracket assembly also includes a nut (12), and the reinforcing bracket (1) is provided with a mounting hole (13); the nut (12) is arranged between the reinforcing bracket (1) and the mounting bracket (2), the nut (12) is connected to the reinforcing bracket (1), and is arranged corresponding to the mounting hole (13).

10. An automobile, comprising a vehicle body, characterized in that: The vehicle body is provided with a battery pack mounting bracket assembly as described in any one of claims 1-9.

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