Integrated battery pack structure

Abstract

The utility model relates to the technical field of batteries, in particular to an integrated battery pack structure which is characterized by comprising a shell and a plurality of battery units, frames are arranged at two ends of the plurality of battery units, the plurality of battery units are inserted into the frames, the frames are used for fixing the battery units, and a BMS circuit board is arranged above the battery units. A protection plate is arranged on the BMS circuit board, the frame and the protection plate are wrapped with the shell, and wire through holes are formed in the two sides of the shell and used for leading out connecting wires from the BMS circuit board. The embedded BMS circuit board has the beneficial effects that the embedded BMS circuit board structure is adopted, so that the BMS circuit board is better protected.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to an integrated battery pack structure. Background Art

[0002] The battery pack is a component in the battery system, usually composed of several cells, connectors, battery management system (BMS), cooling system, electrical interface and shell, etc. Its main function is to connect multiple cells together to increase the voltage and energy storage capacity of the battery system. The cells can be connected in parallel or in series to meet the power requirements of different applications. Battery packs are widely used in various fields, such as electric vehicles, mobile devices, energy storage systems, etc. For example, in electric vehicles, the battery pack is a key component for providing power, and its performance directly affects the range and power performance of electric vehicles. In mobile devices, such as mobile phones and tablets, the battery pack needs to be thin and light, highly safe, and have a long cycle life.

[0003] Currently, the BMS circuit boards in most battery packs are placed directly on the outer shell of the battery pack, or the outer shell is directly covered on the BMS circuit board. During the movement of the battery pack, vibration is inevitable, which may cause the outer shell to directly contact the BMS circuit board, thereby damaging it. Utility Model Content

[0004] The purpose of this application is to provide an integrated battery pack structure, which adopts an embedded BMS circuit board structure to better protect the BMS circuit board.

[0005] In order to achieve the above objectives, the technical solution adopted by the utility model is: an integrated battery pack structure, including an outer shell and a plurality of battery cells, frames are provided at both ends of the plurality of battery cells, the plurality of battery cells are inserted in the frames, the frames are used to fix the battery cells, a BMS circuit board is provided above the battery cells, a protective plate is provided on the BMS circuit board, the outer shell is wrapped around the frame and the protective plate, wire holes are provided on both sides of the outer shell, and the wire holes are used to lead out connecting wires from the BMS circuit board.

[0006] By adopting the above technical solution, an additional protective plate is provided between the outer shell and the BMS circuit board to realize an embedded BMS circuit board structure, thereby further protecting the BMS circuit board and reducing the collision between the BMS circuit board and the outer shell. In addition, the battery cell and the BMS circuit board are both placed in the outer shell to realize an integrated structure. The outer shell can better protect the battery cell and the BMS circuit board.

[0007] Preferably, the frame is provided with a plurality of mounting holes which match with the outer side walls of the battery cells, and a plurality of limit blocks are provided on the side of the frame which faces away from the battery cells. The limit blocks are located at the edges of the mounting holes, and are used to abut against the ends of the battery cells.

[0008] By adopting the above scheme, the matching setting of the mounting hole and the limiting block enables the end of the battery unit to be stably inserted into the mounting hole, and the limiting block limits the battery unit, which is beneficial to reducing the area of ​​the frame and facilitating the heat dissipation of the battery unit.

[0009] Preferably, heat dissipation holes are provided on two sides of the shell adjacent to the frame, and the heat dissipation holes face the side walls of the battery unit.

[0010] By adopting the above technical solution, the arrangement of the heat dissipation holes enables the battery cells inside the housing to be fixed firmly while improving the heat dissipation effect of the battery cells.

[0011] Preferably, the mounting holes in two adjacent horizontal rows are staggered.

[0012] By adopting the above solution, the arrangement of the mounting holes makes the battery cells more compact, which is conducive to making the volume of the battery pack smaller.

[0013] In summary, the beneficial technical effects of this application are:

[0014] An additional protective plate is covered between the outer shell and the BMS circuit board to realize an embedded BMS circuit board structure, thereby further protecting the BMS circuit board and reducing the collision between the BMS circuit board and the outer shell. The battery unit and the BMS circuit board are both placed in the outer shell to realize an integrated structure. The outer shell can better protect the battery unit and the BMS circuit board. The heat dissipation holes on the outer shell make the battery unit inside the outer shell fixed firmly while improving the heat dissipation effect of the battery unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the battery pack in this application.

[0016] Figure 2 It is a schematic diagram of the structure of the battery pack in this application without the outer shell.

[0017] Figure 3 It is a schematic diagram of the structure of the framework in this embodiment.

[0018] Figure 4 Schematic diagram of the structure of the housing in this embodiment.

[0019] Description of reference numerals:

[0020] 1. Shell; 2. Battery cell; 3. Frame; 4. BMS circuit board; 5. Protection board; 6. Wire hole; 7. Mounting hole; 8. Limit block; 9. Heat dissipation hole. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0022] The present application discloses a 1000W integrated battery pack structure, which is mainly used in outdoor mobile power supplies for storing and providing electrical energy. The integrated packaging is used to better protect the battery pack structure, such as Figure 1 and Figure 2 As shown, it specifically includes a shell 1 and a plurality of battery cells 2, frames 3 are set at both ends of the plurality of battery cells 2, and the plurality of battery cells 2 are inserted in the frames 3, the frames 3 are used to fix the battery cells 2, and the battery cells 2 are connected by nickel sheets, a BMS circuit board 4 is set above the battery cells 2, and a protection plate 5 is set on the BMS circuit board 4, the shell 1 is wrapped around the frame 3 and the protection plate 5, and wire holes 6 are opened on both sides of the shell 1, and the wire holes 6 are used to lead out connecting wires from the BMS circuit board 4, and a protection plate 5 is additionally covered between the shell 1 and the BMS circuit board 4 to realize an embedded BMS circuit board 4 structure, thereby further protecting the BMS circuit board 4 and reducing the collision between the BMS circuit board 4 and the shell 1, and the battery cells 2 and the BMS circuit board 4 are both placed in the shell 1 to realize an integrated structure, and the shell 1 can better protect the battery cells 2 and the BMS circuit board 4.

[0023] In this embodiment, Figure 3 and Figure 4As shown, the frame 3 is specifically a plastic frame 3, and the protection plate 5 is also made of plastic material. The frame 3 is provided with a plurality of mounting holes 7 that fit with the outer side walls of the battery cells 2. In this embodiment, the number of mounting holes 7 is four horizontal rows, and the mounting holes 7 in two adjacent horizontal rows are staggered. The arrangement of the mounting holes 7 makes the plurality of battery cells 2 more compact, which is conducive to making the volume of the battery pack smaller. A plurality of limit blocks 8 are provided on the side of the frame 3 away from the battery cells 2. The limit blocks 8 are located at the edge of the mounting holes 7. Each mounting hole 7 has four corresponding limit blocks 8. The four limit blocks 8 are located on the same side of the mounting hole 7 in pairs. The limit blocks 8 are used to fit with the battery cells. The ends of the battery unit 2 are abutted against each other, and the matching arrangement of the mounting hole 7 and the limit block 8 enables the end of the battery unit 2 to be stably inserted into the mounting hole 7, and the limit block 8 limits the battery unit 2, which is beneficial to reducing the area of ​​the frame 3 and facilitating the heat dissipation of the battery unit 2. In addition, heat dissipation holes 9 are provided on both sides adjacent to the shell 1 and the frame 3, and the heat dissipation holes 9 face the side walls of the battery unit 2. The arrangement of the heat dissipation holes 9 enables the battery unit 2 inside the shell 1 to be fixed firmly while improving the heat dissipation effect of the battery unit 2. Protective plates are also provided on both sides and the bottom side of the shell 1 facing the frame 3, thereby providing better protection for the battery unit 2 inside the shell 1.

[0024] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0025] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above examples is only used to help understand the method and core idea of ​​the utility model; the above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above-mentioned technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. An integrated battery pack structure, characterized in that: The invention comprises a shell (1) and a plurality of battery cells (2), wherein frames (3) are arranged at both ends of the plurality of battery cells (2), the plurality of battery cells (2) are inserted into the frames (3), the frames (3) are used to fix the battery cells (2), a BMS circuit board (4) is arranged above the battery cells (2), a protection board (5) is arranged on the BMS circuit board (4), the shell (1) is wrapped around the frame (3) and the protection board (5), and wire holes (6) are opened on both sides of the shell (1), and the wire holes (6) are used to lead out connection wires from the BMS circuit board (4).

2. The integrated battery pack structure according to claim 1, characterized in that: The frame (3) is provided with a plurality of mounting holes (7) which are matched with the outer side walls of the battery unit (2); a plurality of limit blocks (8) are provided on a side of the frame (3) which is away from the battery unit (2); the limit blocks (8) are located at the edges of the mounting holes (7); and the limit blocks (8) are used to abut against the ends of the battery unit (2).

3. The integrated battery pack structure according to claim 1, characterized in that: Heat dissipation holes (9) are provided on two sides of the housing (1) adjacent to the frame (3), and the heat dissipation holes (9) face the side walls of the battery unit (2).

4. The integrated battery pack structure according to claim 2, characterized in that: The mounting holes (7) in two adjacent horizontal rows are staggered in distribution.

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