Power battery pack with protection structure

Abstract

The utility model relates to the field of power battery pack especially relates to a power battery pack with protection structure, including power battery pack body, power battery pack body outside is provided with protection subassembly, and protection subassembly includes base, reinforcing fence subassembly, and the base is fixedly connected with power battery pack body bottom, and the base top four corners and located power battery pack body's outside all are provided with positioning assembly no.

Description

Technical Field

[0001] This utility model relates to the field of power battery pack technology, and in particular to a power battery pack with a protective structure. Background Technology

[0002] A power battery pack is a combination of hundreds or thousands of individual cells connected in series or parallel, along with a battery management system, thermal management system, structural components, and electrical components, forming a high-voltage power pack that provides driving power to a vehicle.

[0003] Many battery packs use only relatively thin sheet metal shells or plastic frames. When a side collision or bottom impact occurs, the shell is easily deformed, directly squeezing the battery cells, causing internal short circuits, leakage, or even thermal runaway and fire. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a power battery pack with a protective structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A power battery pack with a protective structure includes a power battery pack body. A protective component is provided on the outside of the power battery pack body. The protective component includes a base and a reinforcing fence component. The base is fixedly connected to the bottom of the power battery pack body. Positioning component one is provided at each of the four corners of the top of the base and on the outside of the power battery pack body. Positioning component two is provided at the top of the base and between two adjacent positioning components one. The reinforcing fence component is vertically slidably provided on the base. The reinforcing fence component and the base are limited by positioning component one and positioning component two. The reinforced fence assembly includes an upper mounting base and a lower mounting base. Support bases are installed between the upper mounting base and the lower mounting base and at the corresponding positioning component one and positioning component two. Mesh reinforcing rib assemblies are provided between positioning component one and positioning component two and between two adjacent support bases.

[0006] Furthermore, in a preferred configuration, the positioning component one and the positioning component two include a positioning post, the bottom of which is fixedly connected to the base, and an external threaded portion is provided on the upper part of the outer wall of the positioning post, with a nut threadedly connected to the external threaded portion of the positioning post.

[0007] Furthermore, in a preferred configuration, the mesh reinforcing rib assembly includes two transverse reinforcing ribs and two longitudinal reinforcing ribs, which are arranged alternately.

[0008] In addition, a preferred structure is that the base has a cavity, and a reinforcing rib assembly is provided in the cavity. The reinforcing rib assembly includes a transverse reinforcing rib and a longitudinal reinforcing rib, which are arranged alternately.

[0009] In addition, in a preferred structure, a magnet is fixedly installed on the top of the base and between adjacent positioning components one and two, and a slot for inserting the magnet is provided at the bottom of the lower mounting base at the magnet, and a magnetic layer with the opposite polarity to the magnet is provided in the slot.

[0010] In addition, a preferred structure is that the outer wall of the power battery pack body is fitted with a flexible sleeve.

[0011] The beneficial effects of this utility model are as follows: In this utility model, by fixing a base with a reinforcing rib assembly at the bottom of the power battery pack body, and in conjunction with the setting of a reinforcing fence assembly, a protective function can be provided on the outside of the power battery pack to resist the impact and compression from the sides and bottom of the power battery pack body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a power battery pack with a protective structure proposed in this utility model. Figure 2 A schematic diagram of the disassembled structure of the protective component of a power battery pack with a protective structure proposed in this utility model. Figure 1 ; Figure 3 A schematic diagram of the disassembled structure of the protective component of a power battery pack with a protective structure proposed in this utility model. Figure 2 ; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0013] In the diagram: 1. Power battery pack body; 2. Protective components; 21. Base; 211. Reinforcing rib assembly 1; 22. Reinforcing fence assembly; 221. Support seat; 222. Mesh reinforcing rib assembly; 223. Lower mounting seat; 224. Upper mounting seat; 225. Slot; 23. Positioning assembly 1; 231. Positioning post; 232. Nut. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figure 1-4A power battery pack with a protective structure includes a power battery pack body 1, and a protective component 2 is provided on the outside of the power battery pack body 1. The protective component 2 includes a base 21 and a reinforcing fence component 22. The base 21 is fixedly connected to the bottom of the power battery pack body 1. Positioning components 1 23 are provided at the four corners of the top of the base 21 and on the outside of the power battery pack body 1. Positioning components 2 are provided at the top of the base 21 and between two adjacent positioning components 1 23. The reinforcing fence component 22 is vertically slidably provided on the base 21, and the reinforcing fence component 22 and the base 21 are limited by the positioning components 1 23 and the positioning components 2. The reinforced fence component 22 includes an upper mounting base 224 and a lower mounting base 223. Support bases 221 are installed between the upper mounting base 224 and the lower mounting base 223 and at the corresponding positioning components 1 23 and 2. Mesh reinforcing rib components 222 are provided between the positioning components 1 23 and 2 and between two adjacent support bases 221.

[0016] Positioning component one 23 and positioning component two include positioning post 231. The bottom of positioning post 231 is fixedly connected to base 21, and an external thread is provided on the upper part of the outer wall of positioning post 231. A nut 232 is threadedly connected to the external thread on positioning post 231.

[0017] The mesh reinforcing rib assembly 222 includes two transverse reinforcing ribs and two longitudinal reinforcing ribs, which are arranged alternately.

[0018] The base 21 has a cavity, and a reinforcing rib assembly 211 is provided in the cavity. The reinforcing rib assembly 211 includes a transverse reinforcing rib and a longitudinal reinforcing rib, which are arranged alternately.

[0019] A magnet is fixedly installed on the top of the base 21 and between the adjacent positioning components 1 23 and 2. The bottom of the lower mounting base 223 has a slot 225 for inserting the magnet at the magnet, and a magnetic layer with the opposite polarity to the magnet is provided in the slot.

[0020] The outer wall of the power battery pack body 1 is fitted with a flexible sleeve.

[0021] It is worth noting that the specific structure, connection method and working principle of the power battery pack body 1 are all existing technologies that are currently publicly available on the market, so they will not be elaborated further.

[0022] In this embodiment, the base and the reinforced fence assembly constitute the main protective structure, which can resist the impact and pressure from the sides and bottom of the power battery pack body, and prevent the battery cells inside the power battery pack body from being deformed by external forces, resulting in internal short circuits, leakage or thermal runaway.

[0023] The interlaced horizontal and vertical mesh reinforcement ribs 222 can disperse the impact force received locally to the entire frame, thereby improving the overall rigidity.

[0024] The bottom of the battery pack is most vulnerable to damage from bottoming out or scraping. The internal cavity and reinforcing rib assembly 211 of the base enhance its rigidity. The flexible sleeve on the outer wall of the power battery pack acts as a cushion.

[0025] When the reinforced fence assembly needs to be inspected, maintained, or replaced, loosen and remove the nuts at the top of all positioning components one and two in sequence. After all the nuts are removed, the only mechanical connection between the entire reinforced fence assembly and the base is released.

[0026] Due to the magnetic attraction, the component may still be slightly fixed to the base. Then, lift the upper mounting base steadily with both hands to overcome the magnetic attraction, and the entire reinforced fence component can be removed from the base as a whole, thus allowing the reinforced fence component to be disassembled.

[0027] When assembling the reinforced fence assembly with the base, hold the reinforced fence assembly with both hands, lift it up as a whole, move it directly above the base, and slowly lower it so that the slot at the bottom of the lower mounting base is precisely aligned with the magnet block and positioning post on the base.

[0028] Once the mounting bracket and base are firmly pressed together, the magnet and the magnetic layer inside the slot are magnetically connected. Then, remove all the nuts and screw them clockwise into the external thread of the positioning post one by one until you can't turn them anymore, thus completing the assembly of the reinforced fence component.

[0029] In this utility model, by fixing a base with a reinforcing rib assembly 211 at the bottom of the power battery pack body 1, and in conjunction with the setting of the reinforcing fence assembly 22, a protective function can be provided on the outside of the power battery pack to resist the impact and compression from the sides and bottom of the power battery pack body.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A power battery pack with a protective structure, comprising a power battery pack body (1), characterized in that, The power battery pack body (1) is provided with a protective component (2). The protective component (2) includes a base (21) and a reinforcing fence component (22). The base (21) is fixedly connected to the bottom of the power battery pack body (1). The four corners of the top of the base (21) and the outside of the power battery pack body (1) are provided with positioning component one (23). The top of the base (21) and the space between two adjacent positioning components one (23) are provided with positioning component two. The reinforcing fence component (22) is vertically slidably provided on the base (21). The reinforcing fence component (22) and the base (21) are limited by positioning component one (23) and positioning component two. The reinforced fence assembly (22) includes an upper mounting base (224) and a lower mounting base (223). Support bases (221) are installed between the upper mounting base (224) and the lower mounting base (223) and at the corresponding positioning components one (23) and two positioning components. Mesh reinforcing rib assemblies (222) are provided between the positioning components one (23) and the positioning components two and between two adjacent support bases (221).

2. A power battery pack with a protective structure according to claim 1, characterized in that, The positioning component one (23) and positioning component two include a positioning post (231). The bottom of the positioning post (231) is fixedly connected to the base (21), and an external thread is provided on the upper part of the outer wall of the positioning post (231). A nut (232) is threadedly connected to the external thread on the positioning post (231).

3. A power battery pack with a protective structure according to claim 1, characterized in that, The mesh reinforcing rib assembly (222) includes a second transverse reinforcing rib and a second longitudinal reinforcing rib, which are arranged alternately.

4. A power battery pack with a protective structure according to claim 1, characterized in that, The base (21) has a cavity, and a reinforcing rib assembly (211) is provided in the cavity. The reinforcing rib assembly (211) includes a transverse reinforcing rib and a longitudinal reinforcing rib, which are arranged alternately.

5. A power battery pack with a protective structure according to claim 1, characterized in that, The base (21) is fixedly installed with magnet blocks on its top and between adjacent positioning components one (23) and positioning component two. The bottom of the lower mounting base (223) is provided with a slot (225) for inserting the magnet blocks at the magnet blocks, and a magnetic layer with the opposite polarity to the magnet blocks is provided in the slot.

6. A power battery pack with a protective structure according to claim 1, characterized in that, The outer wall of the power battery pack body (1) is fitted with a flexible sleeve.

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