A compact battery pack

Abstract

The utility model belongs to battery pack technical field especially for a kind of tight and urgent battery pack, including bottom shell and electric core, the inside of bottom shell is placed with electric core, the top of electric core is equipped with protection plate, the top of protection plate is provided with FPC soft connection, the top of FPC soft connection is equipped with connector;Bottom shell with the electric core between filling has single-component silica gel, the top of bottom shell is equipped with upper shell;The present application adopts FPC soft connection technology, effectively reduces the occupancy of battery pack internal space, improves space utilization, tin soldering connection protection plate and connector, realizes multi-angle forming installation, improves the flexibility of design, the coverage of single-component silica gel, realizes the waterproof, insulation, damping etc. of battery pack, improves the use performance and safety of battery pack, prevents the existing battery pack design scheme to meet the problem of compact equipment to battery pack high performance, high reliability and high safety demand.

Description

Technical Field

[0001] This utility model belongs to the field of battery pack technology, specifically relating to a compact battery pack. Background Technology

[0002] A battery pack is a power system composed of multiple batteries connected in series or parallel. It is designed to increase voltage or capacity through structural design and is widely used in electronic devices, electric vehicles and other fields.

[0003] With the development of technology, electronic devices have increasingly higher requirements for battery pack space, especially in compact devices, where battery pack design faces problems such as limited internal space and complex connection methods.

[0004] Existing battery pack designs typically use wire harnesses to connect cells and protection boards, which makes it difficult to achieve a compact stacking design. This results in limitations in overall thickness, space utilization, and connection methods, making it difficult to meet the high performance, high reliability, and high safety requirements of compact devices. Therefore, we propose a compact battery pack design. Utility Model Content

[0005] To address the limitations of existing battery pack designs, which typically use wire harnesses to connect cells and protection boards, hindering compact stacking and overall thickness reduction, this invention provides a compact battery pack.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a compact battery pack, comprising a bottom shell and battery cells, wherein the battery cells are disposed inside the bottom shell, a protection plate is mounted above the battery cells, an FPC flexible connection is disposed above the protection plate, and a connector is mounted above the FPC flexible connection;

[0007] A single-component silicone sealant is filled between the bottom shell and the battery cell, and an upper shell is installed on top of the bottom shell.

[0008] As a preferred embodiment of the compact battery pack of this invention, the protection board, the FPC flexible connection, and the connector are connected by soldering.

[0009] In a preferred embodiment of this compact battery pack, the battery cell and the FPC flexible connection are connected by spot welding.

[0010] As a preferred embodiment of the compact battery pack of this utility model, the bottom shell, the protection plate, the FPC flexible connection, the connector, and the battery cell form a semi-enclosed structure, and the single-component silicone forms an enclosed structure with the protection plate and the battery cell.

[0011] As a preferred embodiment of the compact battery pack of this utility model, a screw is inserted inside the upper shell, and the connector is connected to the upper shell through the screw.

[0012] As a preferred embodiment of the compact battery pack of this utility model, the upper shell and the bottom shell are interlocked.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The use of FPC soft connection technology in this application effectively reduces the space occupied inside the battery pack and improves the space utilization rate. Soldering the protection board and connector enables multi-angle molding and installation, improving the design flexibility. The single-component silicone coating enables the battery pack to have waterproof, insulation, and shock absorption functions, improving the performance and safety of the battery pack and preventing the problem that existing battery pack designs cannot meet the high performance, high reliability, and high safety requirements of compact devices. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the external planar structure of the present invention;

[0018] Figure 4 This is an exploded view of the present invention.

[0019] In the diagram: 1. Bottom shell; 2. Screw; 3. Protective plate; 4. FPC flexible connection; 5. Connector; 6. Top shell; 7. Battery cell; 8. Single-component silicone. Detailed Implementation

[0020] 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. Example 1

[0021] like Figures 1-4 As shown;

[0022] A compact battery pack includes a bottom shell 1 and a battery cell 7. The battery cell 7 is disposed inside the bottom shell 1. A protection plate 3 is installed above the battery cell 7. An FPC flexible connection 4 is disposed above the protection plate 3. A connector 5 is installed above the FPC flexible connection 4. A single-component silicone 8 is filled between the bottom shell 1 and the battery cell 7. An upper shell 6 is installed on the top of the bottom shell 1.

[0023] In this implementation plan, the use of FPC soft connection 4 soft connection technology effectively reduces the space occupied inside the battery pack and improves space utilization. The single-component silicone 8 covering realizes the functions of waterproofing, insulation and shock absorption of the battery pack, and improves the performance and safety of the battery pack.

[0024] Furthermore:

[0025] In an optional embodiment, the protection board 3, the FPC flexible connection 4, and the connector 5 are connected by soldering.

[0026] In this implementation plan, the soft connection technology of FPC soft connection 4 is adopted, which effectively reduces the space occupied inside the battery pack and improves the space utilization rate.

[0027] Furthermore:

[0028] In an optional embodiment, the battery cell 7 is connected to the FPC flexible connection 4 by spot welding.

[0029] In this implementation scheme, spot welding is used to connect the battery cell 7 to the flexible connection protection board 3, ensuring the stability and reliability of the connection.

[0030] Furthermore:

[0031] In an optional embodiment, the bottom shell 1, the protective plate 3, the FPC flexible connection 4, the connector 5, and the battery cell 7 form a semi-enclosed structure, and the single-component silicone 8, the protective plate 3, and the battery cell 7 form an enclosed structure.

[0032] In this implementation scheme: the bottom shell 1 serves as the support and protection structure for the battery pack, the protection plate 3 is used to protect the battery cells 7 and circuits inside the battery pack, and the FPC soft connection 4 adopts flexible circuit board technology to realize multi-angle molding and installation between the protection plate 3 and the connector 5, effectively reducing space occupation.

[0033] Furthermore:

[0034] In an optional embodiment, a screw 2 is inserted inside the upper shell 6, and the connector 5 is connected to the upper shell 6 by the screw 2.

[0035] In this implementation scheme: Screw 2 is used to fix connector 5 and upper shell 6 to ensure the stability and reliability of the battery pack.

[0036] Furthermore:

[0037] In an optional embodiment, the upper shell 6 and the bottom shell 1 engage with each other.

[0038] In this implementation scheme: the upper shell 6 and the bottom shell 1 cooperate with each other to form a closed structure of the battery pack.

[0039] Working principle: First, the protection board 3 and connector 5 are soldered to the FPC flexible connector 4 to achieve multi-angle molding and installation. Then, the battery cell 7 is spot-welded to the protection board 3 and FPC flexible connector 4 to ensure the stability and reliability of the connection. Next, the assembled battery pack components, including the protection board 3, FPC flexible connector 4, connector 5, and battery cell 7, are installed into the bottom shell 1, and single-component silicone 8 is used to cover the battery cell 7 and protection board 3, allowing it to cure. Then, the connector 5 and the upper shell 6 are relatively fixed with screws 2, and the upper shell 6 and the bottom shell 1 are then interlocked to complete the assembly of the entire compact battery pack. Finally, after the single-component silicone 8 cures, it achieves functions such as waterproofing, insulation, and shock absorption. The use of flexible connection technology effectively reduces the internal space occupied by the battery pack and improves space utilization. Soldering the protection board 3 and connector 5 enables multi-angle molding and installation, improving design flexibility. The single-component silicone 8 covering the battery cell 7 and protection board 3 achieves functions such as waterproofing, insulation, and shock absorption of the battery pack, improving the performance and safety of the battery pack.

[0040] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A can-type battery pack comprising a bottom case (1) and a cell (7), characterized in that: The bottom shell (1) is equipped with a battery cell (7), a protection plate (3) is installed above the battery cell (7), an FPC flexible connection (4) is provided above the protection plate (3), and a connector (5) is installed above the FPC flexible connection (4). A single-component silicone (8) is filled between the bottom shell (1) and the battery cell (7), and an upper shell (6) is installed on the top of the bottom shell (1).

2. The battery of claim 1, wherein: The protection board (3), the FPC flexible connection (4), and the connector (5) are connected by soldering.

3. The battery of claim 1, wherein: The battery cell (7) is connected to the FPC flexible connection (4) by spot welding.

4. The battery of claim 1, wherein: The bottom shell (1), the protection plate (3), the FPC flexible connection (4), the connector (5), and the battery cell (7) form a semi-enclosed structure, and the single-component silicone (8) forms an enclosed structure with the protection plate (3) and the battery cell (7).

5. The battery of claim 1, wherein: The upper shell (6) is fitted with screws (2), and the connector (5) is connected to the upper shell (6) by the screws (2).

6. The battery of claim 1, wherein: The upper shell (6) and the bottom shell (1) engage with each other.

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