Battery pack support assembly of electric vehicle

Abstract

The utility model relates to the technical field of electric automobiles, in particular to an electric automobile battery pack support assembly which comprises a middle reinforcing tubular beam, an upper high-voltage box support, a lower battery pack support, bolt hole sites, wire harness fixing hole sites, a high-voltage box, a battery pack and a high-voltage wire harness. The middle reinforcing tubular beam is connected with the upper high-voltage box support and the lower battery pack support through welding to form an integral structure, the upper high-voltage box support is provided with a plurality of bolt hole positions used for fixing a high-voltage box, and the lower battery pack support is also provided with a plurality of bolt hole positions used for fixing a battery pack. And the wire harness fixing hole site is arranged on the bracket assembly and is used for fixing a high-voltage wire harness. The electric vehicle battery pack support assembly is simple in structure and convenient to assemble, the space utilization rate is remarkably increased, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to an electric vehicle battery pack bracket assembly. Background Art

[0002] The battery pack is an indispensable part of the vehicle power system. The direct function of the power battery pack is to provide power for electric vehicles, so the battery pack must be firmly fixed to the vehicle body.

[0003] In the prior art, electric vehicle battery pack bracket assemblies usually have problems of low space utilization and high cost. Specifically, due to design limitations, existing electric vehicle battery pack bracket assemblies often require a large space when installing battery packs and other related components, resulting in a less compact internal layout of the vehicle, affecting the space utilization of the entire vehicle, and traditional bracket assemblies usually adopt a more complex structural design, which not only increases material consumption in the manufacturing process, but also increases the difficulty of processing, thereby leading to an increase in production costs. Therefore, how to improve the space utilization and reduce the manufacturing cost of the existing electric vehicle battery pack bracket assembly while meeting the safety and stability requirements has become a technical problem that needs to be solved urgently. Utility Model Content

[0004] The purpose of the utility model is to provide an electric vehicle battery pack bracket assembly to solve the problems of low space utilization and high cost of the current electric vehicle battery pack bracket assembly mentioned in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric vehicle battery pack bracket assembly, comprising a middle reinforced tube beam, an upper high-voltage box bracket, a lower battery pack bracket, bolt holes, wire harness fixing holes, a high-voltage box, a battery pack, and a high-voltage wire harness. The middle reinforced tube beam is connected to the upper high-voltage box bracket and the lower battery pack bracket by welding to form an integral structure. The upper high-voltage box bracket is provided with a plurality of bolt holes for fixing the high-voltage box. The lower battery pack bracket is also provided with a plurality of bolt holes for fixing the battery pack. The wire harness fixing holes are arranged on the bracket assembly for fixing the high-voltage wire harness.

[0006] Preferably, the triangular reinforcement structure formed by the central reinforced tubular beam comprises at least two transverse tubular beams and at least one oblique tubular beam, and the tubular beams are interconnected by welding to form a triangular reinforcement structure.

[0007] Preferably, the upper high-pressure box support includes at least two parallel transverse tube beams and at least two longitudinal tube beams perpendicular to the transverse tube beams, and the support structure is formed by welding.

[0008] Preferably, the lower battery pack support also includes at least two parallel transverse tube beams and at least one longitudinal tube beam perpendicular to the transverse tube beams, and the support structure is formed by welding.

[0009] Preferably, the number of the bolt holes for fixing the vehicle body is eight and they are evenly distributed on the lower edge of the bracket assembly.

[0010] Preferably, the wiring harness fixing holes include at least four holes, and are distributed at different positions on the bracket assembly.

[0011] Preferably, the number of the bolt holes for fixing the battery pack is six and they are evenly distributed on the lower battery pack bracket.

[0012] Preferably, the high-voltage box is connected to the upper high-voltage box bracket by bolts, and the mounting surface of the bottom of the high-voltage box is flat on the transverse pipe beam of the upper high-voltage box bracket.

[0013] Preferably, the battery pack is connected to the lower battery pack bracket by bolts, and the mounting surface of the bottom of the battery pack is flat on the transverse tube beam of the lower battery pack bracket.

[0014] Preferably, the high-voltage wiring harness is fixed to the bracket assembly using a hole tie.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the electric vehicle battery pack bracket assembly has a simple structure, is easy to assemble, significantly improves space utilization, and reduces manufacturing costs. The electric vehicle battery pack bracket assembly structure is welded from multiple tube beams, which not only has a simple structure, a short production cycle, and low cost, but also significantly improves the strength of the overall structure by strengthening the transverse tube beams in multiple locations, so that it can meet the working conditions of the vehicle in different harsh environments. In addition, the bracket assembly integrates the functions of fixing the battery pack, high-voltage box, and high and low voltage wiring harnesses, greatly saving parts costs and optimizing space layout, thereby effectively reducing the overall cost of the vehicle and improving space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following are drawings of exemplary embodiments of the present invention, in which the same or similar reference numerals are used to represent the same or similar elements.

[0017] Figure 1 This is a schematic diagram of the overall structure of the battery pack bracket assembly of an electric vehicle of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the electric vehicle battery pack bracket assembly installed in the cargo compartment of the utility model;

[0019] Figure 3The utility model is a schematic diagram of the installation structure of the electric vehicle battery pack bracket assembly.

[0020] Figure numerals: 1. Middle reinforced tube beam; 2. Upper high-voltage box bracket; 3. Lower battery pack bracket; 4. Bolt hole position; 5. Wire harness fixing hole position; 6. High-voltage box; 7. Battery pack; 8. High-voltage wire harness. DETAILED DESCRIPTION

[0021] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0022] In the present utility model, the term "and / or" is intended to cover all possible combinations and sub-combinations of the listed elements, including any one of the elements listed separately, any sub-combination or all elements, without excluding other elements. Unless otherwise specified, the terms "first", "second", etc. are used to describe various elements without intending to limit the positional relationship, timing relationship or importance relationship of these elements. Such terms are only used to distinguish one element from another. Unless otherwise specified, the orientation or positional relationship indicated by the terms "front, back, up, down, left, right", etc. is usually based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience and simplification of description, and cannot be understood as limiting the scope of protection of the present utility model.

[0023] See also Figure 1-3The utility model provides a technical solution: an electric vehicle battery pack bracket assembly, including a middle reinforced pipe beam 1, an upper high-voltage box bracket 2, a lower battery pack bracket 3, bolt holes 4, wire harness fixing holes 5, a high-voltage box 6, a battery pack 7, and a high-voltage wire harness 8. The middle reinforced pipe beam 1 is connected to the upper high-voltage box bracket 2 and the lower battery pack bracket 3 by welding to form an integral structure. The upper high-voltage box bracket 2 is provided with a plurality of bolt holes 4 for fixing the high-voltage box 6. The lower battery pack bracket 3 is also provided with a plurality of bolt holes 4 for fixing the battery pack 7. The wire harness fixing holes 5 are arranged on the bracket assembly for fixing the high-voltage wire harness 8. This structure is formed into an integral structure by welding the middle reinforced pipe beam 1 with the upper high-voltage box bracket 2 and the lower battery pack bracket 3, which not only significantly enhances The overall structural strength is improved, and the effective use of space is achieved through the layout of components. The multiple bolt holes 4 on the upper high-voltage box bracket 2 are used to fix the high-voltage box 6, which ensures the reliability and safety of the high-voltage system, and is convenient for quick installation and disassembly, reducing maintenance costs. The multiple bolt holes 4 also provided on the lower battery pack bracket 3 are used to fix the battery pack 7. The positions of these holes are optimized to ensure the stable installation of the battery pack under various driving conditions, and are also convenient for replacing battery packs of different specifications, thereby improving versatility and flexibility. At the same time, the setting of the wiring harness fixing holes 5 enables the high-voltage wiring harness 8 to be properly fixed, avoiding damage to the high-voltage wiring harness 8 due to vibration during vehicle operation, and ensuring the stability and Safety. In general, this structural design allows for a close fit between the various components, which not only simplifies the assembly process, but also effectively improves space utilization, while reducing manufacturing costs, ensuring that the electric vehicle battery pack bracket assembly has better comprehensive performance while meeting safety and stability requirements, and solves the problems of low space utilization and high cost in the electric vehicle battery pack bracket assembly in the prior art. The triangular reinforcement structure formed by the central reinforced tube beam 1 includes at least two transverse tube beams and at least one oblique tube beam, and the tube beams are interconnected by welding to form a triangular reinforcement structure. This structure not only significantly enhances the overall rigidity and torsional resistance of the central reinforced tube beam 1, but also provides additional support through the geometric stability principle of the triangle. , ensuring the stability and reliability of the entire bracket assembly when bearing loads, and the triangular reinforcement structure can also effectively disperse impact forces from different directions, thereby protecting the high-voltage box 6 and the battery pack 7 installed thereon from damage, and improving the safety performance of the entire electric vehicle. The upper high-voltage box bracket 2 includes at least two parallel transverse tube beams and at least two longitudinal tube beams perpendicular to the transverse tube beams, and a bracket structure is formed by welding. The upper high-voltage box bracket 2 of this structure not only provides sufficient strength to carry the high-voltage box 6, but also ensures that the high-voltage box 6 remains stable during vehicle driving, thereby ensuring the safety and reliability of the high-voltage system, and the upper high-voltage box bracket 2 can also effectively disperse the load and reduce the impact of vibration on the high-voltage box 6.At the same time, it simplifies the installation and maintenance process and reduces the overall cost. The lower battery pack bracket 3 also includes at least two parallel transverse tube beams and at least one longitudinal tube beam perpendicular to the transverse tube beams, and a bracket structure is formed by welding. The lower battery pack bracket 3 of this structure not only ensures that the battery pack 7 can be firmly fixed on the bracket under various driving conditions, but also effectively disperses the load and reduces the impact of vibration on the battery pack 7. The wiring harness fixing holes 5 include at least four holes and are distributed at different positions on the bracket assembly. The wiring harness fixing holes 5 of this structure can adapt to the needs of various wiring harness directions, simplify the wiring process of the wiring harness, reduce the difficulty of assembly, and ensure the smoothness of electrical connection and the accuracy of signal transmission. The number of bolt holes 4 fixed to the battery pack 7 is set to six, and they are evenly distributed on the lower battery pack bracket 3. This structure not only ensures that the battery pack 7 can be firmly fixed on the lower battery pack bracket 3, but also improves the stability of the battery pack 7 under various driving conditions through the evenly distributed bolt holes 4, and reduces the impact of vibration on the battery pack 7. The high-voltage box 6 is connected to the upper high-voltage box bracket 2 by bolts, and the high-voltage box 6 The bottom mounting surface is flat on the transverse tube beam of the upper high-voltage box bracket 2. This structure not only ensures that the high-voltage box 6 can be firmly fixed on the upper high-voltage box bracket 2, but also improves the stability of the high-voltage box 6 under various driving conditions through the good fit between the flat mounting surface and the transverse tube beam, and reduces the impact of vibration on the high-voltage box 6. The battery pack 7 is connected to the lower battery pack bracket 3 by bolts, and the bottom mounting surface of the battery pack 7 is flat on the transverse tube beam of the lower battery pack bracket 3. This structure not only ensures that the battery pack 7 can be firmly fixed on the lower battery pack bracket 3 The good fit between the flat mounting surface and the transverse tube beam improves the stability of the battery pack 7 under various driving conditions, reduces the impact of vibration on the battery pack 7, simplifies the installation and removal process of the battery pack 7, reduces maintenance costs, and ensures the stability and reliability of the battery system. The high-voltage wire harness 8 is fixed to the bracket assembly with a hole tie. This structure ensures that the high-voltage wire harness 8 can remain stable during the operation of the electric vehicle, avoiding movement or wear of the wire harness due to vehicle vibration, thereby protecting the wire harness from damage and extending the service life of the wire harness.

[0024] Working principle: When using the electric vehicle battery pack bracket assembly, firstly, the middle reinforced tube beam 1 is connected with the upper high-voltage box bracket 2 and the lower battery pack bracket 3 by welding to form an integral structure, and then the high-voltage box 6 is fixed to the bracket assembly through the bolt hole 4 on the upper high-voltage box bracket 2, and the battery pack 7 is fixed to the bracket assembly through the bolt hole 4 on the lower battery pack bracket 3. Subsequently, the high-voltage wire harness 8 is fixed to the wire harness fixing hole 5 with a cable tie to ensure the stability of the wire harness. Finally, the entire bracket assembly is fixed to the body of the electric vehicle through the bolt hole 4 fixed to the body to complete the installation process. When the installation is completed, the bracket assembly ensures the safe fixation of the high-voltage box 6, the battery pack 7 and the high-voltage wire harness 8. At the same time, the triangular reinforcement structure of the middle reinforced tube beam 1, the structural design of the upper high-voltage box bracket 2 and the lower battery pack bracket 3, and the reasonable layout of the wire harness fixing hole 5 and the bolt hole 4 ensure the stability and reliability of the entire bracket assembly, thereby completing a series of work.

[0025] It should be noted that the utility model (e.g., utility model concepts, etc.) has been described in the specification of this patent document and / or illustrated in the drawings according to the exemplary embodiments; the embodiments of the utility model are presented only by way of example and are not intended to limit the scope of the utility model. The structure and / or arrangement of the elements of the utility model concepts embodied in the utility model as described in the specification and / or illustrated in the drawings are only illustrative. Although the exemplary embodiments of the utility model have been described in detail in this patent document, it is easy for a person of ordinary skill in the art to understand that equivalents, modifications, changes, etc. of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the utility model; all of these subject matters (e.g., modifications, changes, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the utility model. It should also be noted that various / other modifications, changes, substitutions, equivalents, changes, omissions, etc. can be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concepts, designs, structures, devices, forms, assemblies, constructions, means, functions, systems, processes / methods, steps, the order of process / method steps, operations, operating conditions, performance, materials, compositions, combinations, etc.). ) without departing from the scope of the present invention; all of these subjects (such as modifications, changes, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter described in the specification and / or drawings of this patent document (such as details, structures, functions, materials, behaviors, steps, sequences, systems, results, etc.). Considering that the claims of this patent document will be appropriately interpreted as covering the full scope of the subject matter of the present invention (for example, including any and all such modifications, changes, embodiments, combinations, equivalents, etc.); it should be understood that the terms used in this patent document are intended to provide a description of the subject matter of the exemplary embodiments, rather than as a limitation on the scope of the present invention.

[0026] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An electric vehicle battery pack bracket assembly, comprising a middle reinforced pipe beam (1), an upper high-voltage box bracket (2), a lower battery pack bracket (3), bolt holes (4), wiring harness fixing holes (5), a high-voltage box (6), a battery pack (7), and a high-voltage wiring harness (8), characterized in that: The middle reinforced tube beam (1) is connected to the upper high-voltage box bracket (2) and the lower battery pack bracket (3) by welding to form an integral structure; the upper high-voltage box bracket (2) is provided with a plurality of bolt holes (4) for fixing the high-voltage box (6); the lower battery pack bracket (3) is also provided with a plurality of bolt holes (4) for fixing the battery pack (7); the wire harness fixing holes (5) are provided on the bracket assembly for fixing the high-voltage wire harness (8).

2. The electric vehicle battery pack bracket assembly according to claim 1, characterized in that: The triangular reinforcement structure formed by the central reinforced tubular beam (1) comprises at least two transverse tubular beams and at least one oblique tubular beam, and the tubular beams are connected to each other by welding to form a triangular reinforcement structure.

3. The electric vehicle battery pack bracket assembly according to claim 1, characterized in that: The upper high-pressure box support (2) comprises at least two parallel transverse tube beams and at least two longitudinal tube beams perpendicular to the transverse tube beams, and a support structure is formed by welding.

4. The electric vehicle battery pack bracket assembly according to claim 3, characterized in that: The lower battery pack bracket (3) also includes at least two parallel transverse tube beams and at least one longitudinal tube beam perpendicular to the transverse tube beams, and a bracket structure is formed by welding.

5. The electric vehicle battery pack bracket assembly according to claim 1, characterized in that: The number of the bolt holes (4) fixed to the vehicle body is eight and is evenly distributed on the lower edge of the bracket assembly.

6. The electric vehicle battery pack bracket assembly according to claim 1, characterized in that: The wiring harness fixing holes (5) include at least four holes, which are distributed at different positions on the bracket assembly.

7. The electric vehicle battery pack bracket assembly according to claim 1, characterized in that: The number of the bolt holes (4) fixed to the battery pack (7) is six and is evenly distributed on the lower battery pack bracket (3).

8. The electric vehicle battery pack bracket assembly according to claim 1, characterized in that: The high-voltage box (6) is connected to the upper high-voltage box bracket (2) via bolts, and the mounting surface of the bottom of the high-voltage box (6) is flat on the transverse pipe beam of the upper high-voltage box bracket (2).

9. The electric vehicle battery pack bracket assembly according to claim 1, characterized in that: The battery pack (7) is connected to the lower battery pack bracket (3) by bolts, and the mounting surface of the bottom of the battery pack (7) is flat on the transverse pipe beam of the lower battery pack bracket (3).

10. The electric vehicle battery pack bracket assembly according to claim 1, characterized in that: The high-voltage wire harness (8) is fixed to the bracket assembly using a hole tie.

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