A conductive connection structure for a battery pack

Abstract

This utility model discloses a conductive connection structure for a battery pack, including a battery pack housing, a battery module inside the battery pack housing, and a conductive connecting piece that is limited and engaged within the battery pack housing by a limiting strip. The conductive connecting piece is connected to the battery module, and a heat-conducting layer connects the conductive connecting piece to the battery pack housing. This utility model forms a limiting groove on the inner side of the battery pack housing using the limiting strip, through which the conductive connecting piece is inserted and secured. The heat-conducting layer then connects the conductive connecting piece to the inner side of the battery pack housing, allowing the conductive connecting piece to be fixed in place. The limiting groove protects the conductive connecting piece from damage and prevents squeezing and friction during battery pack assembly. The heat from the conductive connecting piece can be transferred to the battery pack housing through the heat-conducting layer and dissipated outwards, improving heat dissipation and effectively enhancing the current carrying capacity of the conductive connecting piece, thus extending the battery pack's lifespan.

Description

Technical Field

[0001] This utility model belongs to the field of battery pack technology, and specifically relates to a conductive connection structure for a battery pack. Background Technology

[0002] The battery pack consists of a battery pack shell, battery modules, and other electrical components. The battery pack contains electrical connection structures, which are mainly in the form of wire harnesses or conductive connecting pieces. The conductive connecting pieces can be made of conductive metals such as copper or aluminum. The conductivity is limited by the conductivity of the wire harnesses and the conductive connecting pieces themselves. The main consideration for conductivity is the temperature rise of the wire harnesses and the conductive connecting pieces.

[0003] However, the current conductive connection structure does not release heat well within the battery pack, affecting the overall conductivity of the battery pack. Furthermore, it is not easy to fix the structure inside the battery pack, which can affect the installation of the battery modules during assembly. Sometimes, the wiring harness or electrical connector can affect the module assembly efficiency, and there is even a risk of thermal runaway caused by the wire harness or electrical connector being squeezed and damaged. To address this, we propose a conductive connection structure for the battery pack. Utility Model Content

[0004] The purpose of this invention is to provide a conductive connection structure for a battery pack to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a battery pack conductive connection structure, comprising:

[0006] A battery pack housing, wherein a battery module is disposed within the battery pack housing;

[0007] A conductive connecting piece is secured and fastened within the battery pack housing by a limiting clip, and the conductive connecting piece is connected to the battery module.

[0008] A thermally conductive layer is provided, through which the conductive connecting piece and the battery pack housing are connected.

[0009] Preferably, there are two limiting strips, which are symmetrically arranged on the inner sidewall of the battery pack housing.

[0010] Preferably, the cross-section of the limiting strip is L-shaped, and a limiting groove for limiting and engaging the conductive connecting piece is formed between the two limiting strips and the battery pack housing.

[0011] Preferably, the battery pack housing and the limiting strip are an integral structure made of metal.

[0012] Preferably, both ends of the conductive connecting piece are bent structures.

[0013] Preferably, the thermally conductive layer is a thermally conductive adhesive coating.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model forms a limiting groove on the inner side of the battery pack shell by limiting strips, and inserts the conductive connecting piece through the limiting groove for limiting and locking. Then, the conductive connecting piece is connected to the inner side of the battery pack shell by a heat-conducting layer, so that the conductive connecting piece can be limited and fixed, improving assembly efficiency and reducing the overall cost of the battery pack.

[0016] 2. When the battery pack is in use, the heat of the conductive connecting piece can be transferred to the battery pack shell through the heat-conducting layer and dissipated outward, improving the heat dissipation effect. This can effectively improve the current carrying capacity of the conductive connecting piece, reduce the temperature rise of the overall battery pack, and extend the service life of the battery pack.

[0017] 3. During the battery pack assembly process, the limiting slots protect the conductive connecting pieces from damage, preventing squeezing and friction during assembly. This avoids short circuits caused by squeezing and friction, thus preventing thermal runaway safety issues. It also makes the battery pack structure more standardized and neat, increases the effective use of space, and improves the overall capacity of the battery pack. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0019] Figure 2 This is an exploded three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a top sectional view of the present invention.

[0021] In the diagram: 1. Battery pack housing; 2. Conductive connecting piece; 3. Limiting strip; 4. Thermal conductive layer. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-3 The battery pack conductive connection structure provided by this utility model includes:

[0024] Battery pack housing 1, with a battery module inside the battery pack housing 1;

[0025] The conductive connecting piece 2 is limited and locked inside the battery pack housing 1 by the limiting strip 3. There are two limiting strips 3, which are symmetrically arranged on the inner side wall of the battery pack housing 1. The cross-section of the limiting strip 3 is L-shaped. The two limiting strips 3 and the battery pack housing 1 form a limiting groove for limiting and locking the conductive connecting piece 2, and the conductive connecting piece 2 is connected to the battery module.

[0026] The thermally conductive layer 4 connects the conductive connecting piece 2 and the battery pack housing 1.

[0027] This invention forms a limiting groove on the inner side of the battery pack housing 1 by a limiting strip 3, and inserts the conductive connecting piece 2 through the limiting groove for limiting and locking. Then, the conductive connecting piece 2 is connected to the inner side of the battery pack housing 1 by a heat-conducting layer 4, so that the conductive connecting piece 2 can be limited and fixed, improving assembly efficiency and reducing the overall cost of the battery pack.

[0028] When the battery pack is in use, the heat of the conductive connecting piece 2 can be transferred to the battery pack housing 1 through the heat-conducting layer 4 and dissipated outward, thereby improving the heat dissipation effect, effectively improving the current carrying capacity of the conductive connecting piece 2, reducing the temperature rise of the overall battery pack product, and improving the service life of the battery pack.

[0029] During the battery pack assembly process, the limiting slots protect the conductive connecting pieces 2 from damage, preventing squeezing and friction during assembly and avoiding short circuits caused by squeezing and friction damage. This also prevents thermal runaway safety issues and makes the battery pack structure more standardized and neat, increasing the effective use of space and improving the overall capacity of the battery pack.

[0030] In this embodiment, as Figures 1-3 As shown, the battery pack housing 1 and the limiting strip 3 are an integral structure made of metal, which improves the structural strength.

[0031] In this embodiment, as Figure 1 and Figure 2 As shown, both ends of the conductive connecting piece 2 are bent structures, which facilitates the connection and use of the conductive connecting piece 2.

[0032] In this embodiment, the thermally conductive layer 4 is a thermally conductive adhesive coating, which has both a thermally conductive function and an adhesive fixing function.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery pack electrically conductive connection structure, characterized by, include: Battery pack housing (1), wherein a battery module is provided inside the battery pack housing (1); A conductive connecting piece (2) is limited and snapped into the battery pack housing (1) by a limiting clip (3), and the conductive connecting piece (2) is connected to the battery module. The conductive layer (4) connects the conductive connecting piece (2) and the battery pack housing (1).

2. The battery pack electrically conductive connection structure of claim 1, wherein: Two limiting strips (3) are provided, and the two limiting strips (3) are symmetrically arranged on the inner side wall of the battery pack housing (1).

3. The battery pack electrically conductive connection structure of claim 2, wherein: The cross-section of the limiting strip (3) is L-shaped, and a limiting groove for limiting and engaging the conductive connecting piece (2) is formed between the two limiting strips (3) and the battery pack housing (1).

4. The battery pack electrically conductive connection structure of claim 1, wherein: The battery pack housing (1) and the limiting strip (3) are an integral structure made of metal.

5. The battery pack electrically conductive connection structure of claim 1, wherein: Both ends of the conductive connecting piece (2) are bent structures.

6. The battery pack electrically conductive connection structure of claim 1, wherein: The thermally conductive layer (4) is a thermally conductive adhesive coating.

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