Packaging structure of lithium ion battery pack

Abstract

The utility model provides a packaging structure of a lithium ion battery pack, which comprises a shell, a plurality of lithium ion battery cells are arranged in the shell, an upper bottom plate is arranged on the upper side of the shell, a lower bottom plate is arranged on the lower side of the shell, and the upper bottom plate and the lower bottom plate both correspond to the lithium ion battery cells. Clamping structures are arranged between the lithium ion battery cells and the upper bottom plate and between the lithium ion battery cells and the lower bottom plate, a heat dissipation structure is arranged in the shell and located between the two lithium ion battery cells, a first water pipe is arranged on the peripheral side of the shell, and the first water pipe corresponds to the heat dissipation structure. According to the lithium ion battery, the clamping structures are arranged between the lithium ion battery cells and the upper bottom plate and between the lithium ion battery cells and the lower bottom plate, so that the lithium ion battery cells can be clamped and fixed, the lithium ion battery cells can be conveniently disassembled and assembled, one lithium ion battery cell can be independently disassembled, and a heat dissipation structure is arranged in the shell; the first water pipe is installed on the peripheral side of the shell, and heat dissipation can be conducted through the heat dissipation structure and the first water pipe.

Description

Technical Field

[0001] This utility model relates to the field of battery pack packaging technology, specifically a packaging structure for lithium-ion battery packs. Background Technology

[0002] Lithium-ion batteries are a type of rechargeable battery that primarily relies on the movement of lithium ions between the positive and negative electrodes to function. Existing lithium-ion batteries typically consist of multiple lithium-ion cells packaged in an aluminum-plastic film. For example, patent CN210516808U discloses a packaging structure for a lithium-ion battery pack, including: a lower tray, lithium-ion cells, and a casing. The lower tray holds several lithium-ion cells, with the lower ends of the cells connected to it via an interlocking mechanism. The casing is located in the middle of each lithium-ion cell and is connected to it via a fitting mechanism. An upper tray is located at the top of each lithium-ion cell and is connected to it via an interlocking mechanism. Several connecting strips are located on the outer side of the casing. This device relies on heat dissipation strips for natural heat dissipation, making it highly susceptible to external influences, which can affect the heat dissipation of the internal battery cells.

[0003] Therefore, this utility model provides a packaging structure for lithium-ion battery packs. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a packaging structure for lithium-ion battery packs, thereby solving the problems mentioned in the background section. This invention can securely fasten lithium-ion battery cells, facilitate the disassembly and installation of lithium-ion battery cells, and allow for individual disassembly of a single lithium-ion battery cell, making it convenient to use. It also enables water cooling, providing good heat dissipation, and the water cooling is less affected by the external environment, ensuring the heat dissipation of the battery pack.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a packaging structure for a lithium-ion battery pack, including a shell, in which multiple lithium-ion battery cells are installed, an upper bottom plate is installed on the upper side of the shell, and a lower bottom plate is installed on the lower side of the shell, with both the upper and lower bottom plates corresponding to the lithium-ion battery cells. A snap-fit ​​structure is installed between the lithium-ion battery cells and the upper and lower bottom plates, and a heat dissipation structure is installed inside the shell, located between two lithium-ion battery cells. A first water pipe is installed on the periphery of the shell, corresponding to the heat dissipation structure.

[0006] Furthermore, the heat dissipation structure includes multiple partitions, which are fixedly connected to the outer shell, with both ends of the partitions located on opposite sides of the outer shell.

[0007] Furthermore, the first water pipe is located on the periphery of the end of the partition, and the first water pipe is fixedly connected to the outer shell.

[0008] Furthermore, the partition is a hollow structure, with a second water pipe fixed inside, and the partition is made of a heat-conducting material.

[0009] Furthermore, both ends of the lithium-ion battery cell are fixed with mounting blocks, and the snap-fit ​​structure includes a first snap-fit ​​block fixed to the mounting blocks.

[0010] Furthermore, the upper base plate has a through groove, and the lower base plate has an installation groove, both of which correspond to the mounting block.

[0011] Furthermore, both the mounting groove and the through groove are provided with a first slot, which corresponds to the first card block.

[0012] Furthermore, a second locking block is fixed on both the upper and lower base plates, and a second locking slot is provided on both the upper and lower sides of the outer shell, with the second locking slot corresponding to the second locking block.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a packaging structure for a lithium-ion battery pack, comprising a lithium-ion battery cell; an upper base plate; a lower base plate; a snap-fit ​​structure; a shell; a heat dissipation structure; and a first water pipe.

[0014] A snap-fit ​​structure is installed between the lithium-ion battery cell and the upper and lower base plates, which can snap and fix the lithium-ion battery cell, and facilitate the disassembly and installation of the lithium-ion battery cell. It can also disassemble one lithium-ion battery cell at a time, making it convenient to use. A heat dissipation structure is installed inside the shell, and a first water pipe is installed on the periphery of the shell. Heat dissipation can be achieved through the heat dissipation structure and the first water pipe, resulting in good heat dissipation effect. Moreover, water cooling is less affected by the external environment, ensuring the heat dissipation of the battery pack. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall assembly three-dimensional structure of the packaging structure of a lithium-ion battery pack according to the present invention;

[0016] Figure 2 This is an exploded view of the overall packaging structure of a lithium-ion battery pack according to this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the outer shell assembly in the packaging structure of a lithium-ion battery pack according to the present invention.

[0018] Figure 4 This is a three-dimensional structural diagram of the assembly of lithium-ion battery cells in the packaging structure of a lithium-ion battery pack according to the present invention.

[0019] In the diagram: 1. Outer shell; 2. Lithium-ion battery cell; 3. Mounting block; 4. First locking block; 5. Upper base plate; 6. Lower base plate; 7. Second locking block; 8. First locking slot; 9. Second locking slot; 10. Partition plate; 11. First water pipe; 12. Mounting groove; 13. Through groove. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a packaging structure for a lithium-ion battery pack, including a shell 1, in which a plurality of lithium-ion battery cells 2 are installed. An upper bottom plate 5 is installed on the upper side of the shell 1, and a lower bottom plate 6 is installed on the lower side of the shell 1. The upper bottom plate 5 and the lower bottom plate 6 correspond to the lithium-ion battery cells 2. A snap-fit ​​structure is installed between the lithium-ion battery cells 2 and the upper bottom plate 5 and the lower bottom plate 6. A heat dissipation structure is installed inside the shell 1, and the heat dissipation structure is located between two lithium-ion battery cells 2. A first water pipe 11 is installed on the periphery of the shell 1, and the first water pipe 11 corresponds to the heat dissipation structure.

[0022] In this embodiment, the heat dissipation structure includes multiple partitions 10, which are fixedly connected to the outer shell 1. Both ends of the partitions 10 are located on the opposite outer sides of the outer shell 1. A first water pipe 11 is located on the periphery of the end of the partition 10 and is fixedly connected to the outer shell 1. The partitions 10 are hollow structures, and a second water pipe is fixed inside the partitions 10. The partitions 10 are made of thermally conductive material.

[0023] Specifically, when the battery pack is working, the internal parts of the battery pack can be cooled through the second water pipe, and the periphery of the battery pack and the second water pipe can be cooled through the first water pipe 11 to improve the heat dissipation effect.

[0024] Both ends of the lithium-ion battery cell 2 are fixed with mounting blocks 3. The snap-fit ​​structure includes a first snap-fit ​​block 4 fixed to the mounting block 3. A through groove 13 is opened in the upper base plate 5 and a mounting groove 12 is opened in the lower base plate 6. The mounting groove 12 and the through groove 13 are both corresponding to the mounting block 3. A first snap-fit ​​slot 8 is opened in both the mounting groove 12 and the through groove 13. The first snap-fit ​​slot 8 is corresponding to the first snap-fit ​​block 4. A second snap-fit ​​block 7 is fixed on both the upper base plate 5 and the lower base plate 6. A second snap-fit ​​slot 9 is opened on both the upper and lower sides of the outer shell 1. The second snap-fit ​​slot 9 is corresponding to the second snap-fit ​​block 7.

[0025] Specifically, when the battery pack needs to be assembled, the mounting block 3 is installed in the mounting slot 12 and the through slot 13, so that the first slot 8 and the first block 4 are engaged, thus fixing the lithium-ion battery cell 2. The upper base plate 5 and the lower base plate 6 are engaged and fixed to the outer shell 1 through the second slot 9 and the second block 7, thereby realizing the overall assembly of the device. Pulling the lithium-ion battery cell 2 causes the first slot 8 and the first block 4 to lose their engagement, thus realizing the disassembly of the lithium-ion battery cell 2.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A packaging structure of a lithium-ion battery pack comprising a case (1), characterized in that, The shell (1) is provided with a plurality of lithium ion battery cores (2), the upper side of the shell (1) is provided with an upper bottom plate (5), the lower side of the shell (1) is provided with a lower bottom plate (6), the upper bottom plate (5) and the lower bottom plate (6) correspond to the lithium ion battery core (2), the lithium ion battery core (2) is provided with a clamping structure between the upper bottom plate (5) and the lower bottom plate (6), the shell (1) is provided with a heat dissipation structure, the heat dissipation structure is located between two lithium ion battery cores (2), and the shell (1) is provided with a first water pipe (11) on the periphery.

2. The packaging structure of a lithium-ion battery pack according to claim 1, wherein: The heat dissipation structure comprises a plurality of partitions (10), the partitions (10) are fixedly connected with the shell (1), and the two ends of the partitions (10) are located on the opposite sides of the shell (1).

3. The packaging structure of a lithium-ion battery pack according to claim 2, wherein: The first water pipe (11) is located on the periphery of the end portion of the partition (10), and the first water pipe (11) is fixedly connected with the shell (1).

4. The packaging structure of claim 2, wherein: The partition (10) is a hollow structure, a second water pipe is fixedly arranged in the partition (10), and the partition (10) is made of a heat-conducting material.

5. The packaging structure of claim 1, wherein: The two ends of the lithium ion battery core (2) are fixedly provided with mounting blocks (3), and the clamping structure comprises first clamping blocks (4) fixedly connected with the mounting blocks (3).

6. The packaging structure of claim 5, wherein: The upper bottom plate (5) is provided with a through groove (13), and the lower bottom plate (6) is provided with a mounting groove (12), the mounting groove (12) and the through groove (13) correspond to the mounting block (3).

7. A packaging structure for a lithium-ion battery pack according to claim 6, wherein: The mounting groove (12) and the through groove (13) are provided with first clamping grooves (8), and the first clamping grooves (8) correspond to the first clamping blocks (4).

8. The packaging structure of claim 1, wherein: The upper bottom plate (5) and the lower bottom plate (6) are fixedly provided with second clamping blocks (7), and the upper and lower sides of the shell (1) are provided with second clamping grooves (9), and the second clamping grooves (9) correspond to the second clamping blocks (7).

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