Composite new energy power battery pack blocking rubber strip structure

Abstract

The utility model relates to the technical field of battery pack blocking rubber strips, in particular to a combined type new energy power battery pack blocking rubber strip structure. According to the technical scheme, the battery pack comprises a frame covering the upper portion of a battery pack body and strip-shaped plates, end plates are arranged on the two sides of the battery pack body, the battery pack body is composed of a plurality of battery cells in parallel, the frame is of a concentric-square-shaped structure and arranged on the periphery of the upper end of the battery pack body, and the strip-shaped plates are arranged in the frame at equal intervals. The positions of the strip-shaped plates are aligned with the gaps between the adjacent battery cells, and the frame and the strip-shaped plates are combined to form a glue injection groove. The glue injection groove formed by the frame and the strip-shaped plate can cover the gap between the adjacent battery cells, and the upper end of the strip-shaped plate is lower than the frame, so that glue in the glue injection groove can flow mutually, even if the glue in the glue injection groove is not injected uniformly, the glue can be kept uniform through mutual flowing, and the glue injection efficiency is improved. And the risk of overflowing or infirm bonding is reduced.

Description

A composite new energy power battery pack retaining strip structure Technical Field

[0001] This utility model relates to the field of battery pack retaining strip technology, specifically a composite new energy power battery pack retaining strip structure. Background Technology

[0002] A battery pack is a module composed of multiple battery cells that are connected in series and parallel to provide the required voltage and capacity. Battery packs typically also include components such as a battery management system, connectors, protection circuits, and a housing.

[0003] The adhesive strip in the battery pack plays a crucial role in the assembly process. It effectively prevents glue from overflowing into the gaps between adjacent cells during cell bonding, avoiding the impact of excessive glue on cell performance and the overall structure of the battery pack. A patent (publication number: CN222106948U, adhesive strip structure, battery pack, and vehicle) primarily utilizes an injection groove composed of a frame and adhesive strip for glue injection. The adhesive strip covers the gaps between adjacent cells, preventing glue from entering. During the process, after the cover plate is placed over the frame, the injection groove acts as a sealed space. While this prevents glue overflow, it also prevents glue from flowing freely within adjacent injection grooves. The amount of glue injected into different injection grooves may vary. Injection grooves with more glue may experience glue overflow due to pressure, while areas with insufficient glue may have weak bonding strength, impacting the overall quality of the battery pack. Summary of the Invention

[0004] The purpose of this invention is to provide a composite new energy power battery pack retaining strip structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a frame and strip plates covering the top of the battery pack body. End plates are provided on both sides of the battery pack body. The battery pack body is composed of multiple cells arranged side-by-side. The frame has a U-shaped structure and is located on the upper periphery of the battery pack body. The strip plates are equidistantly arranged within the frame, and their positions are aligned with the gaps between adjacent cells. The frame and strip plates are combined to form an injection groove. The bottom of the strip plates is flush with the bottom of the frame, and the thickness of the strip plates is less than the thickness of the frame.

[0006] Preferably, baffle plates are provided on the lower sides of the frame, and overflow grooves are provided on the outer side of the baffle plates. The overflow grooves are L-shaped plate structures.

[0007] Preferably, the upper end of the end plate is provided with a slot, and buckles are installed at the lower ends of the frame and at positions corresponding to the slot.

[0008] Preferably, both the frame and the bottom of the strip plate are provided with adhesive strips, the upper end of the frame is provided with a toothed groove, and the bottom of the strip plate is a raised structure that is inserted into the gap between adjacent cells.

[0009] Preferably, a spring piece is installed inside the frame and at a position aligned with the strip plate. The spring piece has an arc-shaped structure, and its bottom arc end abuts against the upper end of the strip plate.

[0010] Preferably, the upper end of the strip plate is fixed with top rods at equal intervals, and the upper end of the top rod is fixed with an elastic pad, the upper end of the elastic pad being higher than the upper end of the frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the glue injection groove formed by the frame and the strip plate can cover the gap between adjacent cells, and the upper part of the strip plate is lower than the frame, which can ensure that the glue in the glue injection groove can flow to each other. Even if the glue is injected unevenly in the glue injection groove, it can be kept uniform by mutual flow, reducing the risk of overflow or weak adhesion. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the overall assembly structure of a composite new energy power battery pack retaining strip structure of this utility model;

[0013] Figure 2 is a schematic diagram of the composite new energy power battery pack retaining strip structure cell and strip plate structure of this utility model;

[0014] Figure 3 is a schematic diagram of the strip plate structure of a composite new energy power battery pack retaining strip structure according to Embodiment 1 of this utility model;

[0015] Figure 4 is a schematic diagram of the strip plate structure of a composite new energy power battery pack retaining strip structure according to Embodiment 2 of this utility model.

[0016] In the diagram: 1. Battery pack body; 11. Battery cell; 12. End plate; 13. Slot; 2. Frame; 21. Strip plate; 22. Glue injection groove; 23. Glue baffle; 24. Gear groove; 25. Buckle; 3. Overflow groove; 4. Spring piece; 5. Adhesive strip; 6. Top rod; 61. Elastic pad. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Example 1

[0019] Please refer to Figures 1-3. This utility model provides a technical solution: including a frame 2 and a strip plate 21 covering the battery pack body 1. End plates 12 are provided on both sides of the battery pack body 1. The battery pack body 1 is composed of multiple battery cells 11 arranged in parallel. The frame 2 has a U-shaped structure and is located on the upper periphery of the battery pack body 1. The strip plate 21 is equidistantly arranged inside the frame 2 and its position is aligned with the gap between adjacent battery cells 11. The frame 2 and the strip plate 21 are combined to form an injection groove 22. The bottom of the strip plate 21 is flush with the bottom of the frame 2. The thickness of the strip plate 21 is less than the thickness of the frame 2. A slot 13 is opened at the upper end of the end plate 12. Buckles 25 are installed at the lower ends of the frame 2 and at positions corresponding to the slots 13.

[0020] Working principle: The frame 2 is placed over the upper part of the battery pack body 1. The frame 2 is fixed to the upper part of the battery pack body 1 by the snap-fit ​​and the slot 13. At this time, the glue baffle 23 covers the gap between the adjacent cells 11. Then, glue is injected into the glue injection tank 22. The strip plate 21 blocks the glue from entering between the cells 11. Finally, the battery pack cover is applied. During the covering process, the glue in the glue injection tank 22 is squeezed. Since there is a gap between the glue baffle and the battery pack cover, the glue in different glue injection tanks 22 can flow freely. The glue in the glue injection tank 22 with more glue will flow to the glue injection tank 22 with less glue. In this case, it can avoid excessive glue overflow caused by excessive pressure and avoid insufficient bonding strength in areas with less glue.

[0021] A baffle plate 23 is provided on the lower sides of both sides of the frame 2, and an overflow groove 3 is provided on the outer side of the baffle plate 23. The overflow groove 3 is an L-shaped plate structure.

[0022] After the battery pack cover is applied, if the glue overflows due to pressure after being balanced in different glue injection tanks 22, the overflow tank 3 can be used to collect the overflowing glue and prevent it from adhering to other parts of the battery cell 11.

[0023] Both the frame 2 and the strip plate 21 have adhesive strips 5 at their bottoms. The upper end of the frame 2 has a toothed groove 24. The bottom of the strip plate 21 has a raised structure and is inserted into the gap between adjacent cells 11. A spring piece 4 is installed inside the frame 2 and aligned with the strip plate 21. The spring piece 4 has an arc-shaped structure and its bottom arc end abuts against the upper end of the strip plate 21.

[0024] When glue overflows, a certain amount of glue can be stored in the groove 24, which can also increase the bonding strength. The elasticity of the spring sheet 4 can apply a downward pressure to the upper end of the strip plate 21, thereby ensuring that the bottom of the strip plate 21 abuts against the surface of the battery cell 11. Then, through the sealing of the adhesive strip 5, it can be ensured that the glue will not enter the gap between the battery cells 11. At the same time, the protruding structure of the strip plate 21 is inserted into the gap of the battery cell 11, which can better seal the gap.

[0025] Example 2

[0026] Please refer to Figure 4. The difference between this utility model and Embodiment 1 is that: a top rod 6 is fixed at equal intervals on the upper end of the strip plate 21, and an elastic pad 61 is fixed on the upper end of the top rod 6. The upper end of the elastic pad 61 is higher than the upper end of the frame 2.

[0027] Working principle: After the battery pack cover is applied in Embodiment 1, since the upper end of the elastic pad 61 is higher than the upper end of the frame 2, the battery pack cover will squeeze the elastic pad 61 at the top of the top cover, and thus press down on the upper end of the strip plate 21. Without affecting the flow of glue in the glue injection groove 22, it is easier to press down on the strip plate 21 and keep it sealed.

[0028] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A composite new energy power battery pack retaining strip structure, comprising a frame (2) and a strip plate (21) covering the battery pack body (1), characterized in that: The battery pack body (1) has end plates (12) on both sides. The battery pack body (1) is composed of multiple cells (11) arranged in parallel. The frame (2) is a U-shaped structure and is located on the upper periphery of the battery pack body (1). The strip plate (21) is equidistantly arranged in the frame (2) and its position is aligned with the gap between adjacent cells (11). The frame (2) and the strip plate (21) are combined to form a glue injection groove (22). The bottom of the strip plate (21) is flush with the bottom of the frame (2). The thickness of the strip plate (21) is less than the thickness of the frame (2).

2. The composite new energy power battery pack retaining strip structure according to claim 1, characterized in that: The frame (2) is provided with baffle plates (23) on both sides below, and the baffle plates (23) are provided with overflow grooves (3) on the outside. The overflow grooves (3) are L-shaped plate structures.

3. The composite new energy power battery pack retaining strip structure according to claim 1, characterized in that: The end plate (12) has a slot (13) at the upper end, and buckles (25) are installed at the lower ends of the frame (2) and at positions corresponding to the slot (13).

4. The composite new energy power battery pack retaining strip structure according to claim 1, characterized in that: The bottom of the frame (2) and the strip plate (21) are provided with adhesive strips (5), the upper end of the frame (2) is provided with a toothed groove (24), the bottom of the strip plate (21) is a raised structure and is inserted into the gap of the adjacent battery cell (11).

5. The composite new energy power battery pack retaining strip structure according to claim 1, characterized in that: A spring piece (4) is installed inside the frame (2) and aligned with the strip plate (21). The spring piece (4) has an arc-shaped structure and its bottom arc end abuts against the upper end of the strip plate (21).

6. The composite new energy power battery pack retaining strip structure according to claim 1, characterized in that: The strip plate (21) is fixed with top rods (6) at equal intervals at the upper end, and the top rods (6) are fixed with elastic pads (61) at the upper end. The upper end of the elastic pads (61) is higher than the upper end of the frame (2).

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