Laminated composite battery module tab

Abstract

This utility model discloses a connecting piece for a multilayer composite battery module, specifically relating to the field of battery connecting piece technology. It includes a connecting piece body for a multilayer composite battery, with multiple spaced heat dissipation grooves machined on the bottom of the connecting piece body. A protective component is provided on the outside of the connecting piece body to prevent deformation. The protective component includes an outer shell, a top shell, and a bottom shell fitted over the connecting piece body. The outer shell is located between the top shell and the bottom shell, with the top shell on top of the bottom shell. Functional holes are provided on the outer surfaces of both the top and bottom shells, and multiple spaced assembly holes are provided on the top of the top shell. This utility model uses fasteners to assemble the top and bottom shells onto the outer shell, and the top, bottom, and outer shells provide limiting support for the connecting piece body, ensuring its strength and preventing twisting deformation from external impacts, thus ensuring the integrity of the connecting piece body.

Description

Technical Field

[0001] This utility model relates to the field of battery connector technology, and more specifically to a multilayer composite battery module connector. Background Technology

[0002] With the transformation of the global energy structure and the rapid development of the new energy vehicle industry, the demand for technological iteration of power batteries as the core power source is becoming increasingly urgent. Laminated composite batteries, due to their high energy density, flexible spatial adaptability, and excellent charge-discharge performance, are gradually becoming the mainstream choice in new energy vehicles, energy storage systems, and portable electronic devices. However, these battery modules still face several key technological bottlenecks in actual assembly and application, among which the contradiction between electrical connection reliability and structural stability is particularly prominent.

[0003] As shown in the prior art disclosed in CN219610670U, although this prior art facilitates battery installation by using a connecting piece and a support piece in conjunction, and allows for detachable connection between the connecting piece and the support piece, and conductive adhesive can be applied to the front of the connecting piece to aid battery connection, the detachable nature of the connecting piece allows for easy replacement after the conductive adhesive ages, enabling continued use of the device quickly. Furthermore, replacing the connecting piece allows the user to carefully clean the aged adhesive. However, the connecting piece in this prior art is susceptible to periodic mechanical stress from factors such as bumps and vibrations, causing slight deformation of the battery pack as a whole. As the current transmission carrier, the connecting piece repeatedly bends, thus affecting the performance of the battery connecting piece. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides a connecting piece for a stacked composite battery module. The top shell and bottom shell are assembled to the outside of the outer shell using fastening bolts. The top shell, bottom shell, and outer shell provide limiting support for the outside of the connecting piece body, ensuring the strength of the connecting piece body and preventing the connecting piece body from twisting and deforming due to external impacts, thus ensuring the integrity of the connecting piece body and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a connecting piece for a stacked composite battery module, comprising a connecting piece body for a stacked composite battery, wherein a plurality of spaced heat dissipation grooves are processed on the bottom of the connecting piece body, and a protective component is provided on the outside of the connecting piece body to prevent deformation of the connecting piece body; The protective component includes an outer shell, a top shell, and a bottom shell that are fitted over the outside of the connecting piece body. The outer shell is located between the top shell and the bottom shell, and the top shell is located on top of the bottom shell. Functional holes are provided on the outside of both the top shell and the bottom shell.

[0006] In a preferred embodiment, the top of the top shell has a plurality of spaced-apart assembly holes, each assembly hole having a fastening bolt inside. The bottom end of the fastening bolt passes through the assembly hole and the outer shell in sequence and extends to the outside of the bottom end of the outer shell. The top shell is assembled to the outside of the outer shell by means of the fastening bolt, thereby limiting the top of the connecting piece body by the top shell and ensuring the stability of the connecting piece body.

[0007] In a preferred embodiment, an assembly groove is provided on one side of the top of the bottom shell corresponding to the assembly hole, and the bottom end of the fastening bolt extends into the assembly groove. The fastening bolt is threadedly connected to the assembly groove. Through the threaded connection between the fastening bolt and the assembly groove, the bottom shell can be assembled to the bottom of the outer shell, thereby enhancing the connection stability between the top shell and the bottom shell and the outer shell, and preventing the top shell and the bottom shell from becoming loose.

[0008] In a preferred embodiment, multiple spaced through holes are provided on both the front and rear sides of the bottom shell, and the through holes are connected to the functional holes on the bottom shell. Through the connection between the through holes and the functional holes on the bottom shell, external gas can flow into the bottom shell through the through holes and come into contact with the heat dissipation groove at the bottom of the connecting piece body, thereby accelerating the heat dissipation efficiency of the heat dissipation groove and ensuring the performance of the connecting piece body.

[0009] In a preferred embodiment, two mounting holes are provided at the top of each end of the outer casing. The two mounting holes are symmetrically distributed about the central axis of the outer casing. The mounting holes facilitate the assembly of the outer casing into the stacked composite battery, ensuring the installation stability of the connecting piece body and preventing the connecting piece body from becoming loose.

[0010] In a preferred embodiment, material holes are provided on both the front and rear sides of the outer casing, and connecting grooves for assembling the top and bottom shells are provided on the top and bottom of the outer casing, respectively. By providing material holes, the use of materials can be reduced, thereby reducing the cost. At the same time, by providing connecting grooves, the top and bottom shells can be assembled to the outside of the outer casing, ensuring the stability of the installation of the top and bottom shells and improving the ease of installation of the top and bottom shells.

[0011] The technical effects and advantages of this utility model are as follows: 1. The top and bottom shells are assembled to the outside of the outer shell using fastening bolts. The top, bottom, and outer shells provide limiting support for the outside of the connecting piece body, ensuring the strength of the connecting piece body and preventing it from twisting or deforming due to external impacts, thus ensuring the integrity of the connecting piece body. 2. By connecting the through hole with the functional hole on the bottom shell, air can be ensured to flow through the through hole into the functional hole and come into contact with the heat sink. The air flow accelerates the heat dissipation effect of the heat sink and avoids heat accumulation that could affect the performance of the connecting piece body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 The figure is for this utility model; Figure 3 The figure is for this utility model; Figure 4 The figure is for this utility model; Figure 5 The figure is for this utility model.

[0013] The attached figures are labeled as follows: 1. Connecting plate body; 2. Heat dissipation groove; 3. Outer shell; 4. Top shell; 5. Bottom shell; 6. Functional hole; 7. Assembly hole; 8. Fastening bolt; 9. Assembly groove; 10. Through hole; 11. Mounting hole; 12. Material hole; 13. Connecting groove. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Refer to the instruction manual appendix Figure 1-5 This utility model provides a connecting piece for a stacked composite battery module, including a connecting piece body 1 for the stacked composite battery. The bottom of the connecting piece body 1 is processed with multiple spaced heat dissipation grooves 2. The outside of the connecting piece body 1 is provided with a protective component to prevent deformation of the connecting piece body 1. The protective component includes an outer shell 3, a top shell 4, and a bottom shell 5 sleeved on the outside of the connecting piece body 1. The outer shell 3 is located between the top shell 4 and the bottom shell 5, and the top shell 4 is located on top of the bottom shell 5. Functional holes 6 are opened on the outside of the top shell 4 and the bottom shell 5. The top shell 4 and the bottom shell 5 are assembled to the outside of the outer shell 3 by fastening bolts 8. The top shell 4, the bottom shell 5, and the outer shell 3 provide limiting support for the outside of the connecting piece body 1, ensuring the strength of the connecting piece body 1, preventing the connecting piece body 1 from being twisted and deformed by external impact, and ensuring the integrity of the connecting piece body 1.

[0016] When the connecting piece body 1 is used in a stacked composite battery, it needs to be encapsulated and protected first. Therefore, multiple spaced mounting holes 7 are provided on the top of the top shell 4. Each mounting hole 7 contains a fastening bolt 8. The bottom end of the fastening bolt 8 passes through the mounting hole 7 and the outer shell 3 and extends to the outside of the bottom end of the outer shell 3. Furthermore, a mounting groove 9 is provided on the top of the bottom shell 5 on the side corresponding to the mounting hole 7, and the bottom end of the fastening bolt 8 extends into the mounting groove 9. The fastening bolt 8 is threadedly connected to the mounting groove 9.

[0017] In this way, the fastening bolt 8 can be inserted into the assembly groove 9 through the assembly hole 7 and the outer shell 3. Then, by means of the threaded connection between the fastening bolt 8 and the assembly groove 9, the top shell 4 and the bottom shell 5 can be assembled to the outside of the outer shell 3. The top shell 4, the bottom shell 5 and the outer shell 3 provide limiting support for the outside of the connecting piece body 1, thereby ensuring the strength of the connecting piece body 1, preventing the connecting piece body 1 from being twisted and deformed by external impact, and ensuring the integrity of the connecting piece body 1.

[0018] Next, the connecting piece body 1 is assembled into the stacked composite battery. To enhance the connection stability between the connecting piece body 1 and the stacked composite battery, two mounting holes 11 are provided at the top of both ends of the outer casing 3, and the two mounting holes 11 are symmetrically distributed about the central axis of the outer casing 3. In this way, the outer casing 3 can be easily installed and fixed into the stacked composite battery by means of fastening equipment and the connection between the outer casing 3 and the stacked composite battery, ensuring the tightness of the connection between the outer casing 3 and the stacked composite battery, and thus ensuring the stability of the connecting piece body 1 installed in the stacked composite battery.

[0019] Meanwhile, to ensure the heat dissipation effect of the connecting piece body 1, air circulation at the heat dissipation groove 2 needs to be guaranteed. Therefore, multiple spaced through holes 10 are provided on both the front and rear sides of the bottom shell 5, and the through holes 10 are connected to the functional holes 6 on the bottom shell 5. In this way, by means of the connection between the through holes 10 and the functional holes 6 on the bottom shell 5, air can be ensured to flow through the through holes 10 into the interior of the functional holes 6, and thus come into contact with the heat dissipation groove 2. The air circulation accelerates the heat dissipation effect of the heat dissipation groove 2, and avoids heat accumulation that would affect the performance of the connecting piece body 1.

[0020] Furthermore, the outer casing 3 has material holes 12 on both its front and rear sides, and connecting grooves 13 on its top and bottom for assembling the top shell 4 and bottom shell 5 respectively. The material holes 12 reduce material usage and thus lower manufacturing costs. The connecting grooves 13 limit the position of the top shell 4 and bottom shell 5, ensuring assembly stability and preventing them from becoming loose.

[0021] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connecting piece for a stacked composite battery module, comprising a connecting piece body (1) for a stacked composite battery, characterized in that: The bottom of the connecting piece body (1) is machined with a plurality of spaced heat dissipation grooves (2), and the outside of the connecting piece body (1) is provided with protective parts to prevent deformation of the connecting piece body (1). The protective component includes an outer shell (3), a top shell (4), and a bottom shell (5) that are fitted over the outside of the connecting piece body (1). The outer shell (3) is located between the top shell (4) and the bottom shell (5), and the top shell (4) is located on top of the bottom shell (5). Functional holes (6) are provided on the outside of both the top shell (4) and the bottom shell (5).

2. The connecting piece for the stacked composite battery module according to claim 1, characterized in that: The top shell (4) has multiple spaced assembly holes (7) on its top. Each assembly hole (7) has a fastening bolt (8) inside it. The bottom end of the fastening bolt (8) passes through the assembly hole (7) and the outer shell (3) in sequence and extends to the outside of the bottom end of the outer shell (3).

3. The connecting piece for the stacked composite battery module according to claim 2, characterized in that: The bottom shell (5) has an assembly groove (9) on one side of the top corresponding to the assembly hole (7), and the bottom end of the fastening bolt (8) extends into the assembly groove (9), and the fastening bolt (8) is threadedly connected to the assembly groove (9).

4. The connecting piece for the stacked composite battery module according to claim 1, characterized in that: The bottom shell (5) has multiple through holes (10) spaced apart on both the front and rear sides, and the through holes (10) are connected to the functional holes (6) on the bottom shell (5).

5. The connecting piece for the stacked composite battery module according to claim 1, characterized in that: Two mounting holes (11) are provided at the top of both ends of the outer shell (3), and the two mounting holes (11) are symmetrically distributed about the central axis of the outer shell (3).

6. The connecting piece for the stacked composite battery module according to claim 1, characterized in that: The outer shell (3) has material holes (12) on both the front and rear sides, and the top and bottom of the outer shell (3) have connecting grooves (13) for assembling the top shell (4) and the bottom shell (5) respectively.

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