Transverse and longitudinal beam reinforcing plate for battery pack

Abstract

The utility model belongs to the technical field of batteries, and relates to a transverse and longitudinal beam reinforcing plate for a battery pack. The transverse and longitudinal beams comprise a transverse beam and longitudinal beams connected to the two sides of the transverse beam, and the reinforcing plate comprises a connecting part and a plurality of reinforcing parts connected to the peripheral side of the connecting part; one part of the reinforcing part is used for being fixed on the top surface of the cross beam at the joint of the cross beam and the longitudinal beam, and the rest part of the reinforcing part is used for being fixed on the top surface of the longitudinal beam at the joint of the cross beam and the longitudinal beam. The transverse and longitudinal beam reinforcing plate is simple in structure, easy to machine, low in cost and capable of being produced on a large scale; the reinforcing parts are riveted with the top surfaces of the transverse and longitudinal beams, so that the transverse and longitudinal beams are further fixedly connected through the connecting parts and the reinforcing parts, the connecting strength between the transverse and longitudinal beams is improved, and the risk of vibration failure caused by welding between the transverse and longitudinal beams is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, and specifically relates to a crossbeam and longitudinal beam reinforcing plate for a battery pack. Background Technology

[0002] According to GB38031 and other OEM standards, mechanical performance tests such as vibration, impact, and simulated collision are required for battery pack systems. The strength of the transverse and longitudinal beams and their connections within the battery pack's casing structure plays a decisive role in the overall rigidity of the pack. Currently, mainstream battery packs use only seam welding to connect the transverse and longitudinal beams. However, this single welding method often leads to weld failure due to factors such as welding quality and structural design. Utility Model Content

[0003] To address the above problems, this utility model provides a reinforcing plate for the horizontal and vertical beams of a battery pack.

[0004] The purpose of this utility model is to provide a reinforcing plate for a battery pack with horizontal and vertical beams. The horizontal and vertical beams include a horizontal beam and a vertical beam connected to both sides of the horizontal beam. The reinforcing plate includes a connecting part and a plurality of reinforcing parts connected to the periphery of the connecting part.

[0005] The connecting part is used to be placed at the connection between the crossbeam and the longitudinal beam, a portion of the reinforcing part is used to be fixed on the top surface of the crossbeam at the connection between the crossbeam and the longitudinal beam, and the remaining portion of the reinforcing part is used to be fixed on the top surface of the longitudinal beam at the connection between the crossbeam and the longitudinal beam.

[0006] Furthermore, the reinforcing part is fixedly connected to the crossbeam or the longitudinal beam by rivets.

[0007] Furthermore, the connecting portion and the reinforcing portion are integrally formed.

[0008] Furthermore, the connecting portion and all the reinforcing portions are located on the same horizontal plane.

[0009] Furthermore, the horizontal plane where the connecting part is located is higher than the horizontal plane where the reinforcing part is located.

[0010] Furthermore, the connecting portion and the reinforcing portion are connected by a transition portion.

[0011] Furthermore, the connecting part is used for fixed connection with the cover of the battery pack.

[0012] Furthermore, the connecting part is fixedly connected to the battery pack cover by bolts.

[0013] Furthermore, the number of the reinforcing parts is at least two.

[0014] Furthermore, the number of the reinforcing parts is 3;

[0015] Two of the reinforcing parts are used to fix the top surface of the longitudinal beam at the connection between the crossbeam and the longitudinal beam, and one of the reinforcing parts is used to fix the top surface of the longitudinal beam at the connection between the crossbeam and the longitudinal beam.

[0016] Furthermore, both the crossbeam and the longitudinal beam are hollow cavity structures, and the joint between the longitudinal beam and the crossbeam is welded on all four sides.

[0017] The present invention has the following advantages:

[0018] The cross and longitudinal beam reinforcing plate of this utility model has a simple structure, is easy to process, has low cost, and can be mass-produced.

[0019] This utility model uses a reinforcing part to rivet the top surface of the horizontal and vertical beams, so that the horizontal and vertical beams are further fixedly connected through the connecting part and the reinforcing part, which improves the connection strength between the horizontal and vertical beams and reduces the risk of vibration failure caused by welding alone between the horizontal and vertical beams.

[0020] Since the reinforcing part of this utility model is located on the top surface of the horizontal and vertical beams and does not occupy the space on both sides, it effectively avoids interference with modules and other components inside the package.

[0021] The connecting part in this utility model can be flexibly changed, so that the reinforcing plate can be designed as a flat plate or a three-dimensional plate. The reinforcing plate is a flat plate to fit the space inside the battery pack, and the reinforcing plate is designed as a three-dimensional plate to fix and support the battery pack cover and improve the rigidity of the cover.

[0022] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This shows one of the overall axonometric perspective views of the cross and longitudinal beam reinforcing plates for the battery pack in an embodiment of the present invention;

[0025] Figure 2 One of the overall front views of the cross and longitudinal beam reinforcing plate for the battery pack according to an embodiment of the present invention is shown;

[0026] Figure 3 One of the overall top views of the cross and longitudinal beam reinforcing plate for the battery pack according to an embodiment of the present invention is shown;

[0027] Figure 4 One of the exploded views of the overall structure of the horizontal and vertical beam reinforcing plate for the battery pack according to an embodiment of the present invention is shown;

[0028] Figure 5 One of the isometric perspective views of the crossbeam according to an embodiment of the present invention is shown;

[0029] Figure 6 One of the isometric perspective views of the longitudinal beam according to an embodiment of the present invention is shown;

[0030] Figure 7 One of the isometric perspective views of the reinforcing plate in the embodiments of this utility model is shown;

[0031] Figure 8 One of the top views of the reinforcing plate in an embodiment of this utility model is shown;

[0032] Figure 9 This shows one of the overall axonometric perspective views of the cross and longitudinal beam reinforcing plates for the battery pack in an embodiment of the present invention;

[0033] Figure 10 One of the overall front views of the horizontal and vertical beam reinforcing plates for the battery pack in an embodiment of this utility model is shown (with a schematic diagram showing the position of the cover).

[0034] Figure 11 This shows one of the overall top views of the horizontal and vertical beam reinforcing plates for the battery pack in an embodiment of the present invention;

[0035] Figure 12 One of the isometric perspective views of the reinforcing plate in an embodiment of this utility model is shown;

[0036] In the diagram: 10, crossbeam; 20, longitudinal beam; 30, reinforcing plate; 31, connecting part; 32, reinforcing part; 33, transition part; 40, rivet; 50, box cover. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] like Figure 1 As shown, a battery pack reinforcing plate according to the present invention includes a horizontal beam 10 and a vertical beam 20 connected to both sides of the horizontal beam 10. The reinforcing plate 30 includes a connecting part 31 and a plurality of reinforcing parts 32 connected to the periphery of the connecting part 31.

[0040] The connecting part 31 is placed at the connection between the crossbeam 10 and the longitudinal beam 20. A portion of the reinforcing part 32 is fixed to the top surface of the crossbeam 10 at the connection between the crossbeam 10 and the longitudinal beam 20, and the remaining portion of the reinforcing part 32 is fixed to the top surface of the longitudinal beam 20 at the connection between the crossbeam 10 and the longitudinal beam 20. This allows the crossbeam 10 and the longitudinal beam 20 to be further connected by the connecting part 31 and the reinforcing part 32 after the crossbeam 10 and the longitudinal beam 20 are connected, thereby improving the connection strength between the crossbeam 10 and the longitudinal beam 20 and reducing the risk of vibration failure caused by welding only between the crossbeams and the longitudinal beams 20.

[0041] like Figure 4 As shown, in some embodiments of this utility model, the reinforcing part 32 is fixedly connected to the crossbeam 10 or the longitudinal beam 20 by rivets 40;

[0042] In this embodiment, to accommodate the rivet 40, through holes are provided on the reinforcing part 32, the top surface of the crossbeam 10, and the top surface of the longitudinal beam 20 (see details). Figure 5 , Figure 6 , Figure 7 ).

[0043] like Figure 8 As shown, in some embodiments of this utility model, the connecting part 31 and the reinforcing part 32 are integrally formed.

[0044] like Figure 2 As shown, in some embodiments of this utility model, the connecting portion 31 and all the reinforcing portions 32 are located on the same horizontal plane;

[0045] In this embodiment, the number of reinforcing parts 32 is four, and the four reinforcing parts 32 are evenly distributed around the connecting part 31, with each pair of reinforcing parts 32 forming a right angle (e.g., ...). Figure 8As shown), each of the reinforcing parts 32 is fixed to the top surface of the crossbeam 10 or the longitudinal beam 20 at the connection between the crossbeam 10 and the longitudinal beam 20 (e.g., Figure 3 As shown), the reinforcing plate 30 is placed on the top surface of the connection between the crossbeam 10 and the longitudinal beam 20, without occupying the space on both sides of the connection between the crossbeam 10 and the longitudinal beam 20, effectively avoiding interference with modules and other components inside the package;

[0046] When fixing the reinforcing part 32 to the top surface of the crossbeam 10 or the longitudinal beam 20, the top surface of the fixing point is polished to ensure that the top surface of the crossbeam 10 or the longitudinal beam 20 is flush and smooth, thereby improving the stability of fixing the reinforcing part 32 to the crossbeam 10 or the longitudinal beam 20, enhancing the connection strength between the crossbeam 10 and the longitudinal beam 20, and reducing the risk of vibration failure caused by welding only between the crossbeams and the longitudinal beams 20.

[0047] Figure 3 This shows an overall top view of the transverse and longitudinal beam reinforcing plates for the battery pack in this embodiment; Figure 5 An axonometric perspective view of beam 10 is shown; Figure 6 An axonometric perspective view of the longitudinal beam 20 in this novel embodiment is shown.

[0048] like Figure 9 As shown, in some embodiments of this utility model, the horizontal plane where the connecting part 31 is located is higher than the horizontal plane where the reinforcing part 32 is located.

[0049] In some embodiments of this utility model, the connecting part 31 and the reinforcing part 32 are connected by a transition part 33;

[0050] The connecting part 31, the reinforcing part 32, and the transition part 33 are integrally formed (see details). Figure 9 ).

[0051] like Figure 10 As shown, in some embodiments of this utility model, the reinforcing part 32 is used for fixed connection with the battery pack cover 50.

[0052] For example, such as Figure 12 As shown, the connecting part 31 is provided with a threaded hole, which can be used to fix the connecting part 31 to the cover 50 of the battery pack by the cooperation of the bolt and the threaded hole. By supporting the cover 50, the rigidity of the cover 50 is improved.

[0053] Figure 11 An overall top view of the cross and longitudinal beam reinforcement plates for the battery pack in the embodiment is shown.

[0054] In some embodiments of this utility model, the number of the reinforcing parts 32 is at least 2;

[0055] Exemplarily, when the number of the reinforcing parts 32 is 2, to ensure that "a part of the reinforcing parts 32 are used to be fixed on the top surface of the cross beam 10 at the connection between the cross beam 10 and the longitudinal beam 20, and the remaining part of the reinforcing parts 32 are used to be fixed on the top surface of the longitudinal beam 20 at the connection between the cross beam 10 and the longitudinal beam 20", one of the reinforcing parts 32 is used to be fixed on the top surface of the cross beam 10 at the connection between the cross beam 10 and the longitudinal beam 20, and the other reinforcing part 32 is used to be fixed on the top surface of the longitudinal beam 20 at the connection between the cross beam 10 and the longitudinal beam 20. Therefore, the two reinforcing parts 32 are connected at a right angle to the periphery of the connecting part 31, making the top view of the reinforcing plate 30 in an "L" shape.

[0056] In some embodiments of the present invention, the number of the reinforcing parts 32 is 3;

[0057] Exemplarily, two of the reinforcing parts 32 are used to be fixed on the top surface of the longitudinal beam 20 at the connection between the cross beam 10 and the longitudinal beam 20, and one of the reinforcing parts 32 is used to be fixed on the top surface of the longitudinal beam 20 at the connection between the cross beam 10 and the longitudinal beam 20, so as to improve the connection strength between the longitudinal beams 20 on both sides of the cross beam 10 and the cross beam 10;

[0058] The 3 reinforcing parts 32 are distributed on the periphery of the connecting part 31, making the top view of the reinforcing plate 30 in a shape of "tu".

[0059] In some embodiments of the present invention, both the cross beam 10 and the longitudinal beam 20 are hollow cavity structures, and the lap joint between the longitudinal beam 20 and the cross beam 10 is welded all around;

[0060] In this embodiment, the connection and installation of the reinforcing part 32 with the top surface of the cross beam 10 or the top surface of the longitudinal beam 20 are arranged after the welding between the cross beam 10 and the longitudinal beam 20 is completed.

[0061] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A reinforcing plate for a battery pack with crossbeams and longitudinal beams, the crossbeams and longitudinal beams comprising a crossbeam (10) and longitudinal beams (20) connecting both sides of the crossbeam (10), characterized in that, The reinforcing plate (30) includes a connecting part (31) and a plurality of reinforcing parts (32) connected to the periphery of the connecting part (31); The connecting part (31) is used to be placed at the connection between the crossbeam (10) and the longitudinal beam (20), a portion of the reinforcing part (32) is used to be fixed on the top surface of the crossbeam (10) at the connection between the crossbeam (10) and the longitudinal beam (20), and the remaining portion of the reinforcing part (32) is used to be fixed on the top surface of the longitudinal beam (20) at the connection between the crossbeam (10) and the longitudinal beam (20).

2. The reinforcing plate for the transverse and longitudinal beams of a battery pack according to claim 1, characterized in that, The reinforcing part (32) is fixedly connected to the crossbeam (10) or the longitudinal beam (20) by rivets (40).

3. The reinforcing plate for the transverse and longitudinal beams of a battery pack according to claim 1, characterized in that, The connecting part (31) and the reinforcing part (32) are integrally formed.

4. The reinforcing plate for the transverse and longitudinal beams of a battery pack according to claim 1, characterized in that, The connecting part (31) and all the reinforcing parts (32) are located on the same horizontal plane.

5. A reinforcing plate for transverse and longitudinal beams of a battery pack according to claim 1, characterized in that, The horizontal plane where the connecting part (31) is located is higher than the horizontal plane where the reinforcing part (32) is located.

6. The reinforcing plate for the transverse and longitudinal beams of a battery pack according to claim 5, characterized in that, The connecting part (31) and the reinforcing part (32) are connected by a transition part (33).

7. A reinforcing plate for transverse and longitudinal beams of a battery pack according to claim 5, characterized in that, The connecting part (31) is used to fix it to the cover (50) of the battery pack.

8. A reinforcing plate for a battery pack with transverse and longitudinal beams according to claim 7, characterized in that, The connecting part (31) is fixedly connected to the cover (50) of the battery pack by bolts.

9. A reinforcing plate for transverse and longitudinal beams of a battery pack according to claim 1, characterized in that, The number of the reinforcing parts (32) is at least 2.

10. A reinforcing plate for a battery pack with transverse and longitudinal beams according to claim 9, characterized in that, The number of the reinforcing parts (32) is 3; Two of the reinforcing parts (32) are used to fix the top surface of the longitudinal beam (20) at the connection between the crossbeam (10) and the longitudinal beam (20), and one of the reinforcing parts (32) is used to fix the top surface of the longitudinal beam (20) at the connection between the crossbeam (10) and the longitudinal beam (20).

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