Battery pack stacking structure

Abstract

The utility model belongs to the technical field of household energy storage, and particularly relates to a battery pack stacking structure, each battery pack comprises a shell, and a convex hull is arranged at the bottom of the shell; a mounting hole is formed in the position, corresponding to the convex hull, of the top of the shell; the shape and the size of the guide pad are matched with the shape of the convex hull; when a plurality of battery packs are stacked, the guide pads are fixed at the mounting holes at the top of the shell of the next layer of battery pack by using screws, so that the convex hulls at the bottom of the shell of the upper layer of battery pack are matched with the corresponding guide pads; the top of the uppermost battery pack may not be provided with a guide pad. According to the battery pack stacking structure disclosed by the utility model, the adjacent battery packs can be quickly positioned and mounted through the matching of the guide pads, the screws and the convex hulls; meanwhile, the convex hull is arranged at the bottom of the shell and is sunken towards the inner side of the shell, so that the overall appearance of the battery pack is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of household energy storage, and in particular to a battery pack stacking structure. Background Art

[0002] Energy storage systems have been widely used in daily life and industrial production. One of the core components of energy storage systems is the battery, but the voltage of a single battery is often not enough to meet the usage requirements. It is usually necessary to connect multiple single batteries to form a battery pack and apply it in the form of a battery pack. In some cases, the voltage of a single battery pack still cannot meet the requirements. At this time, it is necessary to combine multiple battery packs in series or parallel to meet specific voltage requirements. In the prior art, in order to save space and maintain aesthetics, battery packs are usually stacked together in an orderly manner. The traditional stacking method generally uses screws to fix two adjacent battery packs, which is not only cumbersome to operate and not conducive to the rapid assembly and maintenance of the battery pack; but also the battery pack is prone to dislocation during the stacking process, thereby reducing the efficiency and reliability of the assembly. Therefore, the present application proposes a new battery pack stacking structure, which aims to improve the assembly efficiency and reliability of the battery pack when it is stacked. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a battery pack stacking structure with a simple structure, which improves the assembly efficiency and reliability of the battery packs when they are stacked.

[0004] The technical solution of the present utility model is: a battery pack stacking structure, each battery pack includes a shell, and a convex bump is provided at the bottom of the shell; a mounting hole is provided at the top of the shell corresponding to the convex bump; and it also includes a guide pad, the shape and size of the guide pad match the shape of the convex bump; when multiple battery packs are stacked, the guide pad is fixed to the mounting hole at the top of the shell of the battery pack of the next layer with screws, so that the convex bump on the bottom of the shell of the battery pack of the upper layer cooperates with the corresponding guide pad; no guide pad is installed on the top of the topmost battery pack.

[0005] Furthermore, there are at least two convex bumps on the bottom of the battery pack.

[0006] Furthermore, the design shapes of the convex hull include a truncated cone, a trapezoidal cone, a cylinder and a cube.

[0007] Furthermore, the shapes of the multiple convex hulls are the same. Preferably, the shapes of the convex hulls are different.

[0008] Furthermore, the plurality of convex hulls are arranged in a straight line on the bottom surface of the shell.

[0009] Furthermore, the plurality of convex hulls are arranged in a zigzag pattern on the bottom surface of the shell.

[0010] Further, the convexes are 3, and the 3 convexes are distributed in a triangular shape.

[0011] Further, the left and right sides of the battery pack shell are provided with handles, and the handles facilitate carrying of the battery pack.

[0012] Further, the related circuit interface of the battery pack is arranged on one side of the shell.

[0013] Further, the other side of the shell is provided with a heat dissipation fin.

[0014] Compared with the prior art, the battery pack stacking structure of the utility model can realize quick positioning and installation through the cooperation of the guide pad, the screw and the convexes between adjacent battery packs; meanwhile, the top of the shell of the uppermost layer of battery pack can not be provided with a guide pad, the convexes are arranged at the bottom of the shell and are recessed towards the inside of the shell, and thus do not protrude outside the surface of the battery pack shell, and do not affect the overall appearance of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a three-dimensional schematic view of the whole battery pack in the embodiment 1 of the utility model;

[0016] Figure 2 is another three-dimensional schematic view of the whole battery pack in the embodiment 1 of the utility model;

[0017] Figure 3 is a three-dimensional schematic view of the guide pad in the embodiment 1 of the utility model;

[0018] Figure 4 is a cutaway schematic view of the guide pad in the embodiment 1 of the utility model;

[0019] Figure 5 is an explosion schematic view of the cooperation of the convexes, the guide pad and the screw when the embodiment 1 of the utility model is stacked;

[0020] Figure 6 is a distribution schematic view of the convexes on the shell in the embodiment 2 of the utility model;

[0021] In the figure: 1, shell; 11, convex; 12, mounting hole; 2, guide pad; 21, center hole; 3, handle; 4, heat dissipation fin; 5, screw. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail in combination with specific embodiments, and the methods or functional components not specifically explained in the embodiments are prior art; unless otherwise defined, all technical and scientific terms used in the present application are the same as the meanings commonly understood by the technical personnel in the technical field of the present application.

[0023] Example 1

[0024] like Figure 1-5 As shown, this embodiment is a battery pack stacking structure. Each battery pack includes a cubical shell 1 with a protrusion 11 at the bottom of the shell 1. The top of the shell 1 is provided with a mounting hole 12 at a position corresponding to the protrusion 11. The mounting hole 12 can be a threaded hole. The battery pack also includes a guide pad 2, the shape and size of which match the shape of the protrusion 11. When multiple battery packs are stacked, the guide pad 2 is fixed to the mounting hole 12 at the top of the shell 1 of the next battery pack using screws 5, so that the protrusion 11 on the bottom of the shell 1 of the previous battery pack mates with the corresponding guide pad 2. The top of the topmost battery pack is not provided with a guide pad 2. A central hole 21 is provided in the middle of the guide pad 2. The screw 5 is inserted through the central hole 21 and then mates with the mounting hole 12 to fix the guide pad 2 to the top of the shell 1.

[0025] In this embodiment, the battery pack has at least two protrusions 11 on the bottom. Both protrusions 11 are truncated cone-shaped. Handles 3 are provided on both the left and right sides of the battery pack housing 1 to facilitate transport. The battery pack circuit interface is located on one side of the housing 1. Heat dissipation fins 4 are provided on the other side of the housing 1.

[0026] Example 2

[0027] like Figure 6 As shown, the difference between this embodiment and embodiment 1 is that: in this embodiment, there are three convex bumps 11 on the shell 1, and the convex bumps 11 are distributed in a triangular shape on the bottom surface of the shell 1, that is, the three convex bumps 11 are respectively located at the three vertices of the triangle, and similarly, there are three mounting holes 12 on the top of the shell 1, and the positions correspond to the three convex bumps 11 respectively.

[0028] In other embodiments, the specific shape of the convex bump 11 can also be a trapezoidal platform or a cylindrical shape, and the overall shape of the guide pad 2 can be the same as the convex bump 11. In particular, convex bumps 11 of different shapes can be provided on the same housing 1, which is more conducive to improving installation accuracy and preventing the occurrence of misaligned installation.

[0029] The above are only some embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have combinations and variations of the aforementioned technical features. Without departing from the spirit and scope of the present invention, those skilled in the art can improve, modify, or replace the present invention with equivalents, or apply the structure or method of the present invention to other fields to achieve the same effect, which all fall within the scope of protection included in the present invention.

Claims

1. A battery pack stacking structure, characterized in that: The battery pack includes a shell with a convex bump at the bottom; a mounting hole is provided at a position on the top of the shell corresponding to the convex bump; and a guide pad is also included, the shape and size of the guide pad being adapted to the convex bump; when multiple battery packs are stacked, the guide pad is fixed to the mounting hole at the top of the shell of the next layer of battery pack with screws so that the convex bump on the bottom of the shell of the upper layer of battery pack cooperates with the guide pad; no guide pad is installed on the top of the topmost battery pack.

2. The battery pack stacking structure according to claim 1, wherein: There are at least two convex bumps on the bottom of the battery pack.

3. The battery pack stacking structure according to claim 1, wherein: The design shapes of the convex hull include truncated cone, trapezoidal cone, cylindrical and cubic shapes.

4. The battery pack stacking structure according to claim 2, wherein: The shapes of the multiple convex hulls may be the same or different.

5. The battery pack stacking structure according to claim 2, wherein: The multiple convex hulls are arranged in a straight line or in a zigzag pattern.

6. The battery pack stacking structure according to claim 2, wherein: There are three convex hulls, and the three convex hulls are distributed in a triangular shape.

7. The battery pack stacking structure according to claim 1, wherein: Handles are provided on both the left and right sides of the battery pack.

8. The battery pack stacking structure according to claim 2, wherein: A central hole is provided in the middle of the guide pad, and the central hole is used to cooperate with the screw.

9. The battery pack stacking structure according to claim 1, wherein: A circuit interface is provided on one side surface of the housing.

10. The battery pack stacking structure according to claim 9, wherein: The other side surface of the housing is provided with heat dissipation fins.

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